Zinc smelting furnace

Abstract

The utility model discloses a zinc smelting furnace which comprises a furnace body, the interior of the furnace body is divided into a heating area and a cooling area through a partition plate, the upper ends of the heating area and the cooling area are communicated through a through opening, a spiral pipe is arranged in the heating area, a feeding pipe is arranged at the upper end of the spiral pipe, a discharging pipe extending out of the furnace body is arranged at the lower end of the spiral pipe, and a cooling pipe is arranged in the cooling area. A discharging opening is formed in one side of the bottom end of the cooling area, a plurality of evaporation holes are formed in the spiral pipe, the spiral pipe is arranged downwards in a spiral mode, heating electric wires are evenly distributed and wound on the outer wall of the spiral pipe in the whole process, the spiral pipe is wrapped by a heat preservation material, a gap is formed between the spiral pipe and the heat preservation material, and a plurality of protrusions are arranged on one side of the upper end of the inner wall of the spiral pipe; the heating electric wires are uniformly distributed and wound on the outer wall of the spiral pipe in the whole process, so that the spiral pipe can be uniformly heated in the heating process of the spiral pipe, the heating uniformity and heating efficiency of the spiral pipe are improved, and the evaporation precipitation uniformity and the evaporation precipitation effect of a zinc material of a hard alloy material in the spiral pipe are improved.

Description

Technical Field

[0001] This utility model belongs to the field of zinc furnace technology, and in particular relates to a zinc furnace. Background Technology

[0002] A zinc furnace is an industrial equipment specifically designed for the smelting, purification, and recycling of zinc metal and alloy materials. Its core function is based on the zinc melting method to process metal materials.

[0003] Regarding zinc furnaces, a search reveals that a Chinese utility model patent with patent authorization announcement number CN208136298U discloses a zinc furnace with a temperature difference structure, such as... Figure 1 As shown, it mainly includes a furnace body n, which is divided into a heating zone b and a cooling zone c by a partition a. The upper ends of the heating zone b and the cooling zone c are provided with a connecting opening d. The heating zone b is provided with a spiral pipe e and a heat-insulating asbestos p. The upper end of the heating zone b is provided with a feeding pipe f leading to the spiral pipe, and the lower end of the heating zone b is provided with a feeding pipe g connected to the spiral pipe e. The cooling zone c is provided with a cooling pipe k, and the lower end of the cooling zone c is provided with an outlet m.

[0004] In the actual implementation of zinc furnaces with similar technical solutions to the above-mentioned technology, it has been found that there are areas for improvement: the heating devices of the spiral tube are not evenly distributed on the spiral tube, resulting in uneven heating of the spiral tube, which makes it necessary to improve the heating and evaporation effect of zinc in the hard alloy material inside the spiral tube. Utility Model Content

[0005] In view of the deficiencies and defects in the existing technology, the purpose of this utility model is to provide a zinc furnace that solves the problem that the heating device of the spiral tube is not evenly distributed on the spiral tube, resulting in uneven heating of the spiral tube and thus the heating and evaporation effect of the hard alloy material inside the spiral tube needs to be improved.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a zinc melting furnace, comprising a furnace body, wherein the furnace body is divided into a heating zone and a cooling zone by a partition, the upper ends of the heating zone and the cooling zone are connected by a through-hole, a spiral tube is provided in the heating zone, a feeding pipe extending out of the furnace body is provided at the upper end of the spiral tube, and a discharge pipe extending out of the furnace body is provided at the lower end of the spiral tube, a cooling pipe is provided in the cooling zone, and a discharge port is provided on one side of the bottom end of the cooling zone, a heating device and heat insulation material are provided in the heating zone, a plurality of evaporation holes are provided on the spiral tube, the spiral tube is spirally downward, heating wires are evenly wound along the entire outer wall of the spiral tube, and the spiral tube is wrapped with heat insulation material, a gap is provided between the spiral tube and the heat insulation material, and a plurality of protrusions are provided on one side of the upper end of the inner wall of the spiral tube.

[0007] As a further improvement of the utility model, the bottom of the discharge pipe is connected with a three-way joint, another two joints of the three-way joint are connected with a reflux pipe and a discharge pipe respectively, and a valve is arranged on the reflux pipe and the discharge pipe, the reflux pipe is communicated with the feeding pipe through a pump, and a feeding opening is arranged on one side of the feeding pipe.

[0008] As a further improvement of the utility model, a feeding cover is arranged on the feeding opening.

[0009] As a further improvement of the utility model, a heat insulation layer is attached to the partition plate.

[0010] Compared with the prior art, the utility model has the following advantages:

[0011] 1. The heating wire is uniformly wound on the outer wall of the spiral pipe, so that the spiral pipe can be uniformly heated during heating, the heating uniformity and efficiency of the spiral pipe are improved, and the evaporation and precipitation uniformity and effect of the zinc material of the hard alloy material in the spiral pipe are improved.

[0012] In addition, the multiple protrusions are arranged on the inner wall of the spiral pipe, so that the residence time of the hard alloy material in the spiral pipe is prolonged, and the evaporation and precipitation effect of the zinc material of the hard alloy material in the spiral pipe is improved.

[0013] 2. The three-way joint is arranged at the bottom of the discharge pipe, the other two ends of the three-way joint are connected with the reflux pipe and the discharge pipe respectively, and the reflux pipe is communicated with the feeding pipe through the pump, so that the hard alloy after zinc evaporation in the spiral pipe can be refluxed into the spiral pipe through the reflux pipe for secondary zinc evaporation and recovery, so that the zinc in the hard alloy is fully evaporated and recovered, the evaporated zinc gas enters the cooling area through the opening, is cooled and condensed into zinc solid, and is recovered, in addition, the feeding opening is arranged, and the hard alloy can be directly added into the spiral pipe through the feeding opening.

[0014] 3. The heat insulation layer is arranged on the partition plate, the heat insulation effect of the partition plate is improved, and the mutual influence of the cooling area and the heating area is prevented. BRIEF DESCRIPTION OF DRAWINGS

[0015] The utility model will be further described below in combination with the drawings:

[0016] Figure 1 It is a structural schematic view of the prior art;

[0017] Figure 2 It is a structural schematic view of the utility model;

[0018] In the diagram: 1. Furnace body; 2. Heating zone; 3. Cooling zone; 4. Inlet; 5. Spiral tube; 6. Feeding pipe; 7. Discharge pipe; 8. Cooling pipe; 9. Discharge port; 10. Evaporation hole; 11. Heating wire; 12. Gap; 13. Protrusion; 14. T-junction; 15. Return pipe; 16. Discharge pipe; 17. Feed valve; 18. Feeding cover; 19. Pump; 20. Insulation layer. Detailed Implementation

[0019] The following is in conjunction with the appendix Figure 2 The present invention will be described in further detail below. For clarity, only the structures relevant to the inventive features of the present invention are shown in the figures.

[0020] For ease of description, the coordinate system is defined as follows: Figure 2 As shown, the left and right directions are horizontal, the front and back directions are vertical, and the up and down directions are vertical.

[0021] This utility model discloses a zinc melting furnace. (Refer to...) Figure 2 A zinc smelting furnace includes a furnace body 1, which is divided into a heating zone 2 and a cooling zone 3 by a partition. The upper ends of the heating zone 2 and the cooling zone 3 are connected by a through-hole 4. A spiral tube 5 is provided in the heating zone 2. The upper end of the spiral tube 5 is provided with a feeding pipe 6 extending out of the furnace body 1, and the lower end of the spiral tube 5 is provided with a discharge pipe 7 extending out of the furnace body 1. A cooling tube 8 is provided in the cooling zone 3, and a discharge port 9 is provided on one side of the bottom end of the cooling zone 3. A heating device and heat insulation material are provided in the heating zone 2. The spiral tube 5 is provided with multiple evaporation holes 10. The spiral tube 5 is spirally downward. Heating wires 11 are evenly wound along the entire outer wall of the spiral tube 5, and the spiral tube 5 is wrapped with heat insulation material. A gap 12 is provided between the spiral tube 5 and the heat insulation material, and the gap is connected to the cooling zone 3 to facilitate the upward transmission of zinc vapor into the cooling zone 3. Multiple protrusions 13 are provided on one side of the upper end of the inner wall of the spiral tube 5.

[0022] In addition, a heat insulation layer 20 is attached to the partition. The heat insulation layer 20 can be made of heat insulation materials, such as glass wool or aerogel, to improve the heat insulation effect of the partition and prevent the cooling zone 3 and the heating zone 2 from affecting each other.

[0023] The bottom of the discharge pipe 7 is connected with a three-way joint 14, another two interfaces of the three-way joint 14 are connected with a backflow pipe 15 and a discharge pipe 16 respectively, the backflow pipe 15 and the discharge pipe 16 are respectively provided with a material valve 17, the backflow pipe 15 is communicated with a feeding pipe through a pump 19, one side of the feeding pipe is provided with a feeding opening, and the feeding opening is provided with a feeding cover 18. Therefore, the hard alloy after zinc evaporation through the spiral pipe 5 can be backflowed into the spiral pipe 5 through the backflow pipe 15 to be subjected to secondary zinc evaporation recovery, so that the zinc in the hard alloy is fully evaporated and recovered, the evaporated zinc gas enters the cooling area 3 from the through hole 4 to be cooled and condensed into zinc solid to be recovered, and in addition, the hard alloy can be directly added into the spiral pipe 5 through the feeding opening.

[0024] The utility model discloses a heating electric wire 11 is uniformly distributed and is wound on the outer wall of the spiral pipe 5, so that the spiral pipe 5 can be uniformly heated in the process of heating the spiral pipe 5, the heating uniformity and heating efficiency of the spiral pipe 5 are improved, and the evaporation and precipitation uniformity and evaporation and precipitation effect of the zinc material of the hard alloy material in the spiral pipe 5 are improved.

[0025] In addition, a plurality of protrusions 13 are arranged on the inner wall of the spiral pipe 5, so that the residence time of the hard alloy material in the spiral pipe 5 is prolonged, and the evaporation and precipitation effect of the zinc material of the hard alloy material in the spiral pipe 5 is improved.

[0026] In the description of the utility model, it should be explained that, unless there is definite provision and limitation, the terms "mounting", "connecting", "connecting" should be understood in a broad sense, for example, can be fixed connection, also can be detachable connection, or integrally connected, can be mechanical connection, also can be electrical connection, can be directly connected, also can be indirectly connected through the intermediate medium, can be the communication of two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to specific circumstances. It should be understood that the specific embodiments described herein are only for understanding the utility model, and are not used to limit the utility model, all other embodiments obtained by ordinary skilled in the art without making creative labor are within the scope of protection of the utility model.

Claims

1. A zinc smelting furnace, comprising a furnace body, wherein the furnace body is divided into a heating zone and a cooling zone by a partition, the upper ends of the heating zone and the cooling zone are connected by a through-hole, a spiral tube is provided in the heating zone, a feeding pipe extending out of the furnace body is provided at the upper end of the spiral tube, and a discharge pipe extending out of the furnace body is provided at the lower end of the spiral tube, a cooling tube is provided in the cooling zone, and a discharge port is provided on one side of the bottom end of the cooling zone, wherein the spiral tube is provided with a plurality of evaporation holes, characterized in that: The spiral pipe spirals downward, heating wires are uniformly and evenly wound on the outer wall of the spiral pipe, the spiral pipe is wrapped by a heat preservation material, a gap is arranged between the spiral pipe and the heat preservation material, and a plurality of protrusions are arranged on one side of the inner wall of the spiral pipe.

2. A zinc melting furnace as claimed in claim 1, wherein: The bottom of the discharge pipe is connected with a three-way joint, the other two joints of the three-way joint are respectively connected with a return pipe and a discharge pipe, a valve is arranged on the return pipe and the discharge pipe, the return pipe is communicated with the feeding pipe through a pump, and a feeding opening is arranged on one side of the feeding pipe.

3. A zinc melting furnace as claimed in claim 2, wherein: A feeding cover is arranged on the feeding opening.

4. A zinc melting furnace as claimed in claim 1, wherein: A heat insulation layer is attached to the partition plate.

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