Solid material melting device
By setting a flat spiral flow guiding structure and a uniform feeding device in the melting tank, the problem of intermittent operation required by the existing device is solved, and continuous melting of NaOH and KOH solid mixture is realized, thus improving the melting efficiency.
Patent Information
- Application Number
- CN202520093599.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-15
- Publication Date
- 2025-12-26
- Estimated Expiration
- 2035-01-15
AI Technical Summary
Existing NaOH and KOH solid mixture melting devices require intermittent operation, which means that the molten mixture must be discharged after each melting before it can be fed again, resulting in long processing time and low efficiency.
A melting tank with a flat spiral flow guiding structure was designed, combined with a uniform feeding device and a stirring structure, to achieve continuous melting of NaOH and KOH solid mixture. The flow path is extended by the flow guiding structure and continuous heating is carried out at the bottom of the melting tank, so as to realize the simultaneous operation of feeding, melting and discharging.
This method enables continuous melting of solid mixtures of NaOH and KOH, shortens the melting time, and improves melting efficiency.
Smart Images
Figure CN223717079U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to melting technology, in particular to a solid material melting device. BACKGROUND
[0002] In the indigo production process, it is necessary to melt the solid mixture of NaOH and KOH into a molten state in a melting device, and then pass the molten mixture into an alkali melting kettle as a reaction solvent to carry out alkali melting reaction.
[0003] At present, a melting device used for melting the solid mixture of NaOH and KOH includes a melting tank, a natural gas heating device is arranged at the bottom of the melting tank, a discharge pipe with a valve is arranged at the lower part of the melting tank, and a feeding opening is arranged at the top of the melting tank. When in use, a certain amount of solid mixture of NaOH and KOH is added into the melting tank through the feeding opening, and then the natural gas heating device is started to heat the bottom of the melting tank, so as to melt the solid mixture of NaOH and KOH. After the solid mixture of NaOH and KOH is melted into a molten state, the molten mixture is discharged from the discharge pipe, and then the solid mixture of NaOH and KOH is added again for melting work. However, the melting tank is intermittently used for melting work, and each feeding and discharging of the melting tank consumes a certain amount of time, thereby causing long time consumption and low efficiency of the whole melting process. CONTENT OF THE UTILITY MODEL
[0004] The present application provides a solid material melting device to solve the problem that the existing melting device needs to discharge the molten mixture for a certain amount of time before adding the solid mixture of NaOH and KOH again for melting work after each melting is completed, thereby causing long time consumption and low efficiency of the whole melting process.
[0005] The present application provides a solid material melting device, which includes a melting tank, a heating device is arranged at the bottom of the melting tank, and a discharge pipe with a valve is arranged at the lower end of the melting tank.
[0006] A vertically distributed flow guide structure is arranged at the inner lower end of the melting tank, the cross section of the flow guide structure is flat spiral, and a hollow melting cavity is formed between the middle part of the flow guide structure and the lower end of the melting tank.
[0007] The device further includes a feeding device capable of uniform feeding, and the discharge end of the feeding device extends above the melting cavity.
[0008] Optionally, the feeding device includes a hopper, a cylinder body in communication with the hopper is connected to the lower end of the hopper, one end of the cylinder body extends above the melting cavity, a rotatable spiral blade is arranged in the cylinder body, and the spiral blade is connected to a motor I capable of driving the rotation of the spiral blade.
[0009] Optionally, the upper end of the melting tank is fixed with a motor II, the motor II is connected with a rotating shaft extending into the melting cavity, and the rotating shaft is fixed with a stirring structure located in the melting cavity.
[0010] Optionally, the stirring structure is composed of a plurality of stirring components distributed vertically.
[0011] The stirring component is composed of a plurality of stirring blades distributed in a ring shape.
[0012] Optionally, the lower end of the melting tank is provided with a spherical convex structure at a middle position, and the spherical convex structure is located in the interior of the melting cavity.
[0013] Optionally, the heating device comprises a shell, the shell is a hollow structure with an open upper end, the upper end of the shell is fixedly connected with the lower end of the melting tank, and the interior of the shell is provided with a natural gas burner.
[0014] The shell is provided with symmetrically distributed filter screen structures.
[0015] The solid material melting device provided by the application is provided with a heating device at the bottom of the melting tank, a discharge pipe with a valve at the lower end of the melting tank, a vertically distributed flow guide structure at the lower end of the interior of the melting tank, a hollow melting cavity formed between the middle of the flow guide structure and the lower end of the melting tank, and a feeding device capable of uniform feeding, and the discharge end of the feeding device extends above the melting cavity, so that in use, the feeding device uniformly feeds the NaOH and KOH solid mixture into the melting cavity, the NaOH and KOH solid mixture falls to the bottom of the melting cavity, and the heating device heats the bottom of the melting tank, that is, heats and melts the NaOH and KOH solid mixture falling into the melting cavity. When the NaOH and KOH solid mixture forms a molten mixture, the molten mixture flows along the flow guide structure and is discharged from the discharge pipe. When the feeding device continuously feeds the melting cavity, part of the NaOH and KOH solid mixture flows along with the molten mixture. Since the cross section of the flow guide structure is a flat spiral shape, and the bottom of the melting tank can heat the molten mixture flowing along the flow guide structure, the flow path of the molten mixture in the melting tank is relatively long, that is, the flow time in the melting tank is relatively long. The NaOH and KOH solid mixture flowing along with the molten mixture can be heated and melted by the bottom of the melting tank, thereby compared with the existing melting method, when the molten mixture is formed in the melting cavity, the feeding device continuously feeds the melting cavity while the discharge pipe continuously discharges, and the feeding work, melting work and discharging work are synchronized, realizing continuous melting, so as to shorten the time of the entire melting process and improve the melting efficiency. BRIEF DESCRIPTION OF DRAWINGS
[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without any creative effort on the basis of these drawings.
[0017] Fig. 1 The front view structural schematic diagram of the solid material melting device provided by the embodiment of the present application is shown in the figure.
[0018] Fig. 2 The front view structural schematic diagram of the solid material melting device provided by the embodiment of the present application is shown in the figure.
[0019] Fig. 3 The front view structural schematic diagram of the solid material melting device provided by the embodiment of the present application is shown in the figure.
[0020] The figure mark explanation: melting tank 1, spherical convex structure 101, heating device 2, shell 201, natural gas burner 202, filter screen structure 203, discharge pipe 3, flow guide structure 4, melting cavity 5, feeding device 6, hopper 601, cylinder 602, spiral blade 603, motor I 604, drive shaft 605, support frame 606, support 7, motor II 8, rotating shaft 9, stirring structure 10, stirring blade 11. DETAILED DESCRIPTION
[0021] In order to make the purpose, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be described clearly and completely below. Obviously, the described embodiments are some embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without any creative effort also belong to the scope of protection of the present application.
[0022] As shown in the figure: Figs. 1-3
[0023] The solid material melting device provided by an embodiment of the present application comprises a melting tank 1. The bottom of the melting tank 1 is provided with a heating device 2. The heating device 2 heats the bottom of the melting tank 1. The lower end of the melting tank 1 is provided with a discharge pipe 3 with a valve. Specifically, the valve is an electric valve, which is convenient for opening and closing.
[0024] The inner lower end of the melting tank 1 is sealingly fixed with vertically distributed flow guide structures 4. The cross section of the flow guide structure 4 is flat spiral, and the middle part of the flow guide structure 4 and the lower end of the melting tank 1 form a hollow melting cavity 5.
[0025] The feeding device 6 is capable of feeding uniformly, and the outlet of the feeding device 6 extends above the melting cavity 5.
[0026] In the embodiment, the melting tank 1 comprises a tank body, and the outer side wall of the tank body and the outer upper wall of the tank body are both provided with a heat preservation layer to prevent heat loss.
[0027] In use, the heating device 2 is started first to heat the bottom of the melting tank 1, and then the feeding device 6 uniformly feeds the solid mixture of NaOH and KOH into the melting cavity 5. The solid mixture of NaOH and KOH falls to the bottom of the melting cavity 5, and the bottom of the melting tank 1 heats and melts the solid mixture of NaOH and KOH falling into the melting cavity 5. When the solid mixture of NaOH and KOH forms a molten mixture, the molten mixture flows along the flow guide structure 4 and is discharged from the outlet pipe 3. When the feeding device 6 continuously feeds the melting cavity 5, part of the solid mixture of NaOH and KOH flows along with the molten mixture. Since the cross section of the flow guide structure 4 is a flat spiral, and the bottom of the melting tank 1 can heat the molten mixture flowing along the flow guide structure 4, the flow path of the molten mixture in the melting tank 1 is relatively long, that is, the flow time of the molten mixture in the melting tank 1 is relatively long. The solid mixture of NaOH and KOH flowing along with the molten mixture can be heated and melted by the bottom of the melting tank 1 to form a molten mixture and flow to the outlet pipe 3. Finally, all the molten mixture is continuously discharged from the outlet pipe 3. When the molten mixture is formed in the melting cavity 5, the feeding device 6 continuously feeds the melting cavity 5 while the outlet pipe 3 can continuously discharge, so that the feeding work, melting work and discharging work can be synchronized, realizing the continuous melting work of the solid mixture of NaOH and KOH, thereby shortening the time of the whole melting process and improving the melting efficiency.
[0028] In some embodiments of the present application, the feeding device 6 comprises a hopper 601, the lower end of the hopper 601 is connected with a barrel 602 in communication therewith, one end of the barrel 602 extends above the melting cavity 5, the inside of the barrel 602 is provided with a rotatable spiral blade 603, and the spiral blade 603 is connected with a motor I 604 capable of driving the rotation thereof.
[0029] Specifically, the inside of the barrel 602 is provided with a driving shaft 605, one end of the driving shaft 605 is rotatably connected with the barrel 602 through a bearing, and the other end of the driving shaft 605 is connected with the motor I 604, the other end of the driving shaft 605 is rotatably connected with a support frame 606 through a bearing, and the support frame 606 is fixedly connected with the barrel 602, and the spiral blade 603 is fixed on the driving shaft 605.
[0030] Further, the hopper 601 is fixed with a support 7 for supporting the hopper 601.
[0031] In use, the motor I 604 drives the drive shaft 605 to rotate, the drive shaft 605 drives the spiral blade 603 to rotate, and the spiral blade 603 uniformly transports the NaOH and KOH solid mixture in the hopper 601 into the melting cavity 5 to feed the melting cavity 5.
[0032] In some embodiments of the present application, the upper end of the melting tank 1 is fixed with a motor II 8, the motor II 8 is connected with a rotating shaft 9 extending into the inside of the melting cavity 5, and the rotating shaft 9 is fixed with a stirring structure 10 located in the melting cavity 5, so that the inside of the melting cavity 5 can be stirred during the melting process, thereby improving the melting efficiency of the NaOH and KOH solid mixture.
[0033] In some embodiments of the present application, the stirring structure 10 is composed of a plurality of stirring assemblies distributed upward and downward.
[0034] The stirring assembly is composed of a plurality of stirring blades 11 distributed in a ring shape.
[0035] In use, the motor II 8 drives the rotating shaft 9 to rotate, the rotating shaft 9 drives all the stirring blades 11 to rotate synchronously, and all the stirring blades 11 stir the materials in the melting cavity 5 at different positions to improve the melting efficiency of the NaOH and KOH solid mixture.
[0036] In some embodiments of the present application, the lower end of the melting tank 1 is provided with a spherical convex structure 101 at the middle position, and the spherical convex structure 101 is located in the inside of the melting cavity 5, thereby increasing the contact area of the materials and the bottom of the melting tank 1 to further improve the melting efficiency in the melting cavity 5.
[0037] In some embodiments of the present application, the heating device 2 comprises a shell 201, which is a hollow structure with an open upper end, the upper end of the shell 201 is fixedly connected with the lower end of the melting tank 1, and the inside of the shell 201 is fixed with a natural gas burner 202.
[0038] The shell 201 is provided with symmetrical filter screen structures 203, so that the external air can enter the shell 201 to provide oxygen for the natural gas burner 202, and foreign matters can be prevented from entering the shell 201.
[0039] In the present embodiment, the natural gas burner 202 is connected with a natural gas supply pipeline, and the natural gas burner 202 is a prior art and will not be described in detail.
[0040] In use, after the natural gas burner 202 is ignited, the natural gas burner 202 burns natural gas to heat the bottom of the melting tank 1.
[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, and are not limited thereto; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand; it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.
Claims
1. A solid material melting device, comprising a melting tank (1), the bottom of the melting tank (1) is provided with a heating device (2), the lower end of the melting tank (1) is provided with a discharge pipe (3) with a valve; The inner lower end of the melting tank (1) is provided with a vertically distributed flow guide structure (4), the cross section of the flow guide structure (4) is flat spiral, and the middle part of the flow guide structure (4) and the lower end of the melting tank (1) form a hollow melting cavity (5); It also includes a uniform feeding device (6), the discharge end of the feeding device (6) extends above the melting cavity (5).
2. The solid material melting apparatus according to claim 1, characterized by: The feeding device (6) includes a hopper (601), the lower end of the hopper (601) is connected with a cylinder (602) in communication therewith, one end of the cylinder (602) extends above the melting cavity (5), the inside of the cylinder (602) is provided with a rotatable spiral blade (603), the spiral blade (603) is connected with a motor I (604) capable of driving it to rotate.
3. The solid material melting apparatus according to claim 1, characterized by: The upper end of the melting tank (1) is fixed with a motor II (8), the motor II (8) is connected with a rotating shaft (9) extending into the melting cavity (5), the rotating shaft (9) is fixed with a stirring structure (10) located in the melting cavity (5).
4. The solid material melting apparatus according to claim 3, characterized by: The stirring structure (10) is composed of a plurality of stirring assemblies arranged vertically; The stirring assembly is composed of a plurality of annularly distributed stirring blades (11).
5. The solid material melting apparatus according to claim 1, characterized by: The lower end of the melting tank (1) is provided with a spherical convex structure (101) at the middle position, and the spherical convex structure (101) is located in the melting cavity (5).
6. The solid material melting apparatus according to claim 1, characterized by: The heating device (2) comprises a shell (201), the shell (201) is a hollow structure with an open upper end, the upper end of the shell (201) is fixedly connected with the lower end of the melting tank (1), the inside of the shell (201) is provided with a natural gas burner (202); The shell (201) is provided with symmetrically distributed filter screen structures (203).