Energy-saving full-automatic one-step nitrogen protection double-pushed slab kiln sintering section device
By optimizing the kiln cavity structure and materials of the vanadium-nitrogen alloy processing device, the problem of high energy consumption and low efficiency was solved, and rapid sintering and efficient production were achieved.
Patent Information
- Application Number
- CN202420981160.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-08
- Publication Date
- 2025-09-23
- Estimated Expiration
- 2034-05-08
AI Technical Summary
The kiln cavity structure of existing vanadium-nitrogen alloy processing equipment is not conducive to sintering, resulting in high energy consumption and low efficiency.
An energy-saving, fully automatic, one-step nitrogen-protected double-pushing kiln sintering section device is designed, which includes an outer shell, an outer insulation layer, an inner insulation layer, a refractory layer, an energy-saving kiln mechanism, and a lower heating mechanism. The kiln cavity structure is optimized to improve the heat radiation efficiency and holding capacity, and multi-layer block structure materials are used to enhance the thermal insulation and heat preservation performance.
It achieves rapid sintering of vanadium-nitrogen alloy, reduces power consumption by 50%, increases output and extends furnace service life.
Smart Images
Figure CN223376303U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of vanadium-nitrogen alloy processing devices, in particular to an energy-saving, fully automatic, one-step nitrogen-protected double-push plate kiln sintering section device. Background Art
[0002] In the production of vanadium-nitrogen alloys at home and abroad, when the nitriding stage ends and enters the nitriding sintering stage, the material is completely sintered from 1250℃ to 1500℃ to form vanadium-nitrogen alloy. At this stage, most manufacturers generally use a pusher kiln protected by a nitrogen atmosphere. The kiln structure is simple, and the overall kiln cavity structure and cross-section are difficult to balance during the processing. For example, the height-to-width ratio is not appropriate, which easily leads to a long sintering time and energy consumption in stages. The energy consumption is high and the output is low. The existing commonly used pusher kilns often have too high power consumption during the vanadium-nitrogen alloy sintering process. Utility Model Content
[0003] The main purpose of the utility model is to provide an energy-saving, fully automatic, one-step nitrogen-protected double-pushing plate kiln sintering section device, so as to at least solve the problem in the prior art that the kiln chamber of the vanadium-nitrogen alloy processing device is not conducive to the sintering requirements, thereby resulting in excessive energy consumption and low processing efficiency.
[0004] In order to achieve the above-mentioned purpose, the utility model provides an energy-saving, fully automatic, one-step, nitrogen-protected double-push plate kiln sintering section device, comprising an outer shell, an outer insulation layer, an inner insulation layer, a refractory layer, an energy-saving furnace kiln mechanism, a lower heating mechanism and a base; the outer insulation layer is arranged inside the outer shell; the inner insulation layer is arranged inside the outer insulation layer; the refractory layer is arranged inside the inner insulation layer; the energy-saving furnace kiln mechanism is arranged inside the refractory layer; the lower heating mechanism is arranged at the bottom of the energy-saving furnace kiln mechanism; the base is arranged at the bottom of the outer shell; wherein, the material to be processed is placed in the energy-saving furnace kiln mechanism, and the energy-saving furnace kiln mechanism and the lower heating mechanism are both used to heat the material to be processed; the refractory layer is used to block the high temperature when the energy-saving furnace kiln mechanism and the lower heating mechanism process the material to be processed; the inner insulation layer and the outer insulation layer are used to maintain the temperature of the energy-saving furnace kiln mechanism; and the base is used to support the outer shell.
[0005] Furthermore, the energy-saving kiln mechanism includes a short and wide kiln wall layer, a kiln track layer and an upper arch beam chamber; the short and wide kiln wall layer is arranged on the inner wall of the refractory layer; the lower heating mechanism is arranged at the bottom of the short and wide kiln wall layer; the kiln track layer is arranged at the lower part of the short and wide kiln wall layer; the kiln track layer is abutted against the upper end of the lower heating mechanism; the upper arch beam chamber is arranged at the upper end of the short and wide kiln wall layer; wherein, the material to be processed is placed on the short and wide kiln wall layer and heated and processed by the lower heating mechanism and the upper arch beam chamber; the lower heating mechanism is isolated from the material to be processed by the kiln track layer.
[0006] Furthermore, the lower heating mechanism includes a lower heating chamber and a lower heating cover window; the lower heating chamber is arranged at the lower part of the short and wide kiln wall layer, and the kiln track layer is abutted against the lower heating chamber; the lower heating chamber is used to heat the material to be processed; the lower heating cover window is arranged on the lower heating chamber, and the lower heating chamber adjusts the internal temperature through the lower heating cover window.
[0007] Furthermore, the internal height dimension range of the short and wide kiln wall layer 51 is 600-400 mm, and the internal width dimension range is 900-1000 mm.
[0008] Furthermore, the outer insulation layer, the inner insulation layer, the refractory layer and the short and wide kiln wall layer are all internal multi-layer block structures.
[0009] Furthermore, the multi-layer block structure of the inner thermal insulation layer is an aluminum foam brick layer and a mullite polylight layer.
[0010] Furthermore, the multi-layer block structure of the refractory layer is a corundum brick layer, a hollow ball brick layer, a cast hollow ball layer, a magnesia-zirconium brick layer and a corundum brick polylight layer.
[0011] Furthermore, the multi-layer block structure of the short and wide kiln wall layer comprises a corundum brick layer, a hollow ball brick layer and a magnesia-zirconium brick layer.
[0012] Furthermore, the material of the furnace track layer is electrode graphite.
[0013] The energy-saving, fully automatic, one-step, nitrogen-protected double-push plate kiln sintering section device using the technical solution of the utility model comprises an outer shell, an outer insulation layer, an inner insulation layer, a refractory layer, an energy-saving kiln mechanism, a lower heating mechanism and a base; the outer insulation layer is arranged inside the outer shell; the inner insulation layer is arranged inside the outer insulation layer; the refractory layer is arranged inside the inner insulation layer; the energy-saving kiln mechanism is arranged inside the refractory layer; the lower heating mechanism is arranged at the bottom of the energy-saving kiln mechanism; the base is arranged at the bottom of the outer shell; wherein, the material to be processed is placed in the energy-saving kiln mechanism, and the energy-saving kiln mechanism and the lower heating mechanism are both used to heat the material to be processed; the refractory layer is used to block the high temperature when the energy-saving kiln mechanism and the lower heating mechanism process the material to be processed; the inner insulation layer and the outer insulation layer are used to maintain the temperature of the energy-saving kiln mechanism; the base is used to support the outer shell, which solves the problem in the prior art that the kiln cavity of the vanadium-nitrogen alloy processing device is not conducive to sintering requirements, thereby leading to excessive energy consumption and low processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] The drawings constituting part of this application are provided to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are provided to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:
[0015] Figure 1This is a schematic diagram of the main structure of an energy-saving, fully automatic, one-step nitrogen-protected double-pushing kiln sintering section device that can be selected according to an embodiment of the utility model;
[0016] The above drawings include the following reference numerals:
[0017] 10. Outer shell; 20. Outer insulation layer; 30. Inner insulation layer; 40. Refractory layer; 50. Energy-saving kiln mechanism; 51. Short and wide kiln wall layer; 52. Kiln track layer; 53. Upper arch beam chamber; 60. Lower heating mechanism; 61. Lower heating chamber; 62. Lower heating cover window; 70. Base. DETAILED DESCRIPTION
[0018] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.
[0019] According to the energy-saving fully automatic one-step nitrogen protection double push plate kiln sintering section device of the embodiment of the utility model, Figure 1 As shown, it includes an outer shell 10, an outer insulation layer 20, an inner insulation layer 30, a refractory layer 40, an energy-saving furnace kiln mechanism 50, a lower heating mechanism 60 and a base 70; the outer insulation layer 20 is arranged inside the outer shell 10; the inner insulation layer 30 is arranged inside the outer insulation layer 20; the refractory layer 40 is arranged inside the inner insulation layer 30; the energy-saving furnace kiln mechanism 50 is arranged inside the refractory layer 40; the lower heating mechanism 60 is arranged at the bottom of the energy-saving furnace kiln mechanism 50; the base 70 is arranged at the bottom of the outer shell 10; wherein the material to be processed is placed in the energy-saving furnace kiln mechanism 50, and the energy-saving furnace kiln mechanism 50 and the lower heating mechanism 60 are both used to heat the material to be processed; the refractory layer 40 is used to block the energy-saving furnace kiln mechanism The upper and lower heating mechanisms 50 and 60 are used to process the high temperature of the material to be processed; the inner insulation layer 30 and the outer insulation layer 20 are used to maintain the temperature of the energy-saving kiln mechanism 50; the base 70 is used to support the outer shell 10; the sintering of the material to be processed is mainly carried out by the energy-saving kiln mechanism 50, so the internal structure of the energy-saving kiln mechanism 50 is particularly important, the nitriding section enters the sintering section, and the material is completely sintered into a vanadium-nitrogen alloy from 1250°C to 1500°C. At this stage, the optimal kiln cavity height and width are mainly designed to fully utilize energy and reduce sintering power consumption, so as to obtain the best quality, maximum production output, lowest energy consumption and longest kiln service life within the optimal time range.
[0020] When implementing it specifically, Figure 1As shown, further, the energy-saving kiln mechanism 50 includes a short and wide kiln wall layer 51, a kiln track layer 52 and an upper arch beam chamber 53; the short and wide kiln wall layer 51 is arranged on the inner wall of the refractory layer 40; the lower heating mechanism 60 is arranged at the bottom of the short and wide kiln wall layer 51; the kiln track layer 52 is arranged at the lower part of the short and wide kiln wall layer 51; the kiln track layer 52 is abutted against the upper end of the lower heating mechanism 60; the upper arch beam chamber 53 is arranged at the upper end of the short and wide kiln wall layer 51; wherein, the material to be processed is placed on the short and wide kiln wall layer 51 and heated and processed by the lower heating mechanism 60 and the upper arch beam chamber 53; the lower heating mechanism 60 is isolated from the material to be processed by the kiln track layer 52; the short and wide kiln wall layer 51 has a lower height and a wider width in the internal structure. Under such a design, the lower height makes the heat radiation efficiency higher and the heating and sintering faster, while the wider width can accommodate more material to be processed, and the processing efficiency is higher.
[0021] When implementing it specifically, Figure 1 As shown, the lower heating mechanism 60 includes a lower heating chamber 61 and a lower heating cover window 62; the lower heating chamber 61 is arranged at the lower part of the short and wide kiln wall layer 51, and the kiln track layer 52 is in contact with the lower heating chamber 61; the lower heating chamber 61 is used to heat the material to be processed; the lower heating cover window 62 is arranged on the lower heating chamber 61, and the lower heating chamber 61 adjusts the internal temperature through the lower heating cover window 62.
[0022] When implementing it specifically, Figure 1 As shown, the internal height dimension range of the short and wide kiln wall layer 51 is 600-400mm, and the internal width dimension range is 900-1000mm. This dimension range design conforms to the structure of lower height and wider width, which correspondingly makes the heating and sintering of the kiln faster and the processing efficiency higher. It can achieve low electricity consumption per ton of vanadium-nitrogen alloy (3000℃ / TVN) and save 50% of electricity compared with conventional kilns. It can produce more than 7.5 tons of vanadium-nitrogen alloy per day, and the product density is between 3.5-5, which is more suitable for the sintering section of vanadium-nitrogen alloy.
[0023] When implementing it specifically, Figure 1 As shown, the outer insulation layer 20, the inner insulation layer 30, the refractory layer 40 and the short and wide kiln wall layer 51 are all internal multi-layer block structures. The internal structure height of the short and wide kiln wall layer 51 is relatively low, so the internal temperature is relatively high during processing. Therefore, the multi-layer block structure helps to improve the thermal insulation, heat preservation performance and strength to ensure the service life of the entire device.
[0024] When implementing it specifically, Figure 1 As shown, the multi-layer block structure of the inner insulation layer 30 is an aluminum foam brick layer and a mullite polylight layer. These two materials have good high temperature resistance and low thermal conductivity, and are not easy to lose temperature, so the insulation effect is better.
[0025] When implementing it specifically, Figure 1As shown, the multi-layer block structure of the refractory layer 40 is a corundum brick layer, a hollow ball brick layer, a cast hollow ball layer, a magnesia zirconium brick layer and a corundum brick polylight layer. These materials have strong chemical stability and are not easily corroded or damaged, so they have strong protective properties.
[0026] When implementing it specifically, Figure 1 As shown, the multi-layer block structure of the short and wide kiln wall layer 51 is a corundum brick layer, a hollow ball brick layer and a magnesia-zirconium brick layer. These materials are resistant to high temperatures and have strong thermal conductivity, which is beneficial to the sintering environment of the material to be processed.
[0027] When implementing it specifically, Figure 1 As shown, the material of the furnace track layer 52 is electrode graphite, which has the highest strength at high temperatures and thus has a longer service life.
[0028] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.
Claims
1. An energy-saving, fully automatic, one-step nitrogen-protected double-push plate kiln sintering section device, characterized in that: include: outer shell (10); an outer thermal insulation layer (20), the outer thermal insulation layer (20) being arranged inside the outer shell (10); an inner thermal insulation layer (30), the inner thermal insulation layer (30) being arranged inside the outer thermal insulation layer (20); a fire-resistant layer (40), the fire-resistant layer (40) being arranged inside the inner thermal insulation layer (30); An energy-saving furnace mechanism (50), the energy-saving furnace mechanism (50) being arranged inside the refractory layer (40); A lower heating mechanism (60), the lower heating mechanism (60) being arranged at the bottom of the energy-saving furnace mechanism (50); A base (70), the base (70) being arranged at the bottom of the outer shell (10); The material to be processed is placed in the energy-saving furnace mechanism (50), and the energy-saving furnace mechanism (50) and the lower heating mechanism (60) are both used to heat the material to be processed; the refractory layer (40) is used to block the high temperature when the energy-saving furnace mechanism (50) and the lower heating mechanism (60) process the material to be processed; the inner insulation layer (30) and the outer insulation layer (20) are used to maintain the temperature of the energy-saving furnace mechanism (50); and the base (70) is used to support the outer shell (10); The energy-saving kiln mechanism (50) comprises: A short and wide kiln wall layer (51), the short and wide kiln wall layer (51) being arranged on the inner side wall of the refractory layer (40); the lower heating mechanism (60) being arranged at the bottom of the short and wide kiln wall layer (51); a kiln track layer (52), the kiln track layer (52) being arranged at the lower portion of the short and wide kiln wall layer (51); the kiln track layer (52) being in contact with the upper end of the lower heating mechanism (60); an upper arch beam chamber (53), the upper arch beam chamber (53) being arranged at the upper end of the short and wide kiln wall layer (51); The material to be processed is placed on the short and wide kiln wall layer (51) and is heated and processed by the lower heating mechanism (60) and the upper arch beam chamber (53); the lower heating mechanism (60) is isolated from the material to be processed by the kiln track layer (52); The internal height dimension range of the short and wide kiln wall layer (51) is 600-400 mm, and the internal width dimension range is 900-1000 mm.
2. The energy-saving, fully automatic, one-step nitrogen-protected double-pushing kiln sintering section device according to claim 1 is characterized in that: The lower heating mechanism (60) comprises: A lower heating chamber (61), the lower heating chamber (61) is arranged at the bottom of the short and wide kiln wall layer (51), and the kiln track layer (52) is in contact with the lower heating chamber (61); the lower heating chamber (61) is used to heat the material to be processed; A lower heating cover window (62) is provided on the lower heating chamber (61), and the lower heating chamber (61) adjusts the internal temperature through the lower heating cover window (62).
3. The energy-saving, fully automatic, one-step nitrogen-protected double-pushing kiln sintering section device according to claim 1 is characterized in that: The outer thermal insulation layer (20), the inner thermal insulation layer (30), the refractory layer (40), and the short and wide kiln wall layer (51) are all internal multi-layer block structures.
4. The energy-saving, fully automatic, one-step nitrogen-protected double-pushing kiln sintering section device according to claim 1 is characterized in that: The multi-layer block structure of the inner thermal insulation layer (30) comprises an aluminum foam brick layer and a mullite polylight layer.
5. The energy-saving, fully automatic, one-step nitrogen-protected double-pushing kiln sintering section device according to claim 1 is characterized in that: The multi-layer block structure of the refractory layer (40) comprises a corundum brick layer, a hollow ball brick layer, a cast hollow ball layer, a magnesia-zirconium brick layer, and a corundum brick polylight layer.
6. The energy-saving, fully automatic, one-step nitrogen-protected double-pushing kiln sintering section device according to claim 1 is characterized in that: The multi-layer block structure of the short and wide kiln wall layer (51) comprises a corundum brick layer, a hollow ball brick layer and a magnesia-zirconium brick layer.
7. The energy-saving, fully automatic, one-step nitrogen-protected double-pushing kiln sintering section device according to claim 1 is characterized in that: The material of the furnace track layer (52) is electrode graphite.