Nitriding furnace for processing high-nitrogen ferrovanadium

Abstract

The utility model relates to a nitriding furnace for processing high-nitrogen ferrovanadium, which comprises a furnace body, a furnace cover mounted at the top of the furnace body, a hollow turntable arranged at the bottom in the furnace body, a central distribution pipe arranged in the middle of the top of the hollow turntable, a plurality of edge distribution pipes uniformly distributed on the circumference of the outer edge of the top, and a plurality of central distribution air holes uniformly distributed on the outer wall of the central distribution pipe, a plurality of edge distribution air holes are formed in the side, facing the center distribution pipe, of the edge distribution pipe, the bottom of the hollow rotating disc communicates with a hollow rotating shaft, the hollow rotating shaft is connected with an external ammonia gas inlet pipe, and the outer wall of the hollow rotating shaft is connected with a driving motor through a chain wheel and a chain; a heating resistor is arranged on the inner side wall of the furnace body, and exhaust holes are formed in the side wall of the furnace body. According to the utility model, ammonia gas entering the furnace body can be uniformly distributed, so that a better nitriding effect is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of high-nitrogen ferrovanadium production equipment, in particular to a nitriding furnace for processing high-nitrogen ferrovanadium. Background Art

[0002] High nitrogen ferrovanadium is an important metal material with excellent magnetic and mechanical properties, and is widely used in electronics, magnetic materials and other fields. The main raw materials for the preparation of ferrovanadium nitride are ferrovanadium and ammonia. The production process of ferrovanadium nitride is mainly to react ferrovanadium and ammonia at high temperature to combine vanadium and nitrogen in ferrovanadium to form vanadium nitride. The specific process includes: putting ferrovanadium into a nitriding furnace, passing pre-heated ammonia, controlling the flow and temperature of ammonia, controlling the temperature in the nitriding furnace, and performing nitriding reaction at a certain temperature.

[0003] In the existing nitriding furnace, the position where ammonia is introduced is fixed, and the gas distribution in the nitriding furnace is uneven, resulting in poor quality of the final nitrided product. Utility Model Content

[0004] The utility model aims to solve the deficiencies of the prior art and provides a nitriding furnace for processing high-nitrogen vanadium iron.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions:

[0006] A nitriding furnace for processing high-nitrogen vanadium iron comprises a furnace body, a furnace cover is installed on the top of the furnace body, a hollow turntable is arranged at the bottom of the furnace body, a central distribution pipe is arranged in the middle position of the top of the hollow turntable, and a plurality of edge distribution pipes are evenly distributed on the circumference of the outer edge of the top, a plurality of central distribution air holes are evenly distributed on the outer wall of the central distribution pipe, a plurality of edge distribution air holes are opened on the side of the edge distribution pipe facing the central distribution pipe, a hollow rotating shaft is connected to the bottom of the hollow turntable, the hollow rotating shaft is connected to an external ammonia inlet pipe, a driving motor is connected to the outer wall of the hollow rotating shaft through a sprocket and a chain, an adjustable material placing tray assembly is installed in the furnace body below the furnace cover, a heating resistor is arranged on the inner wall of the furnace body, and an exhaust hole is arranged on the side wall of the furnace body.

[0007] The adjustable material placing tray assembly includes two threaded rods installed on the furnace cover, a number of material placing trays are passed through the two threaded rods, a through hole is provided in the middle of the material placing tray, a central distribution pipe is passed through the through hole, and adjusting nuts are tightened on the upper and lower surfaces of each material placing tray on the threaded rod.

[0008] A number of auxiliary distribution air holes are provided on the top of the hollow turntable.

[0009] The beneficial effect of the utility model is that the utility model can evenly distribute the ammonia gas entering the furnace body, thereby ensuring a better nitriding effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the structure of the utility model;

[0011] In the figure: 1-furnace body; 2-furnace cover; 3-hollow turntable; 4-center distribution pipe; 5-edge distribution pipe; 6-center distribution air hole; 7-edge distribution air hole; 8-hollow shaft; 9-drive motor; 10-adjustable material tray assembly; 11-heating resistor; 12-exhaust hole; 13-lifting hole; 14-auxiliary distribution air hole; 15-support column; 16-motor support plate;

[0012] 101-threaded rod; 102-material placing tray; 103-through hole; 104-adjusting nut; 105-fixing nut;

[0013] The following is a detailed description of the embodiments of the present invention with reference to the accompanying drawings. DETAILED DESCRIPTION

[0014] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention. The present invention is described in more detail in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of the present invention will become clearer according to the following description. It should be noted that the drawings are all in a very simplified form and are not in precise proportions, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention.

[0015] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a component centered. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may also be a component centered. When a component is considered to be "set on" another component, it may be directly set on the other component or there may also be a component centered. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0016] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0017] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0018] like Figure 1As shown, a nitriding furnace for high nitrogen vanadium iron processing includes a furnace body 1, a furnace cover 2, a hollow turntable 3, a central distribution pipe 4, an edge distribution pipe 5, a central distribution air hole 6, an edge distribution air hole 7, a hollow rotating shaft 8, a driving motor 9, an adjustable material placing tray assembly 10, a heating resistor 11, an exhaust hole 12, a lifting ring 13, an auxiliary distribution air hole 14, a support column 15, and a motor support plate 16.

[0019] A furnace cover 2 is installed on the top of the furnace body 1 , a heating resistor 11 is arranged on the inner wall of the furnace body 1 , and an exhaust hole 12 is arranged on the side wall of the furnace body 1 .

[0020] A hollow turntable 3 is provided at the bottom of the furnace body 1, a central distribution pipe 4 is provided at the middle position of the top of the hollow turntable 3, and a plurality of edge distribution pipes 5 are evenly distributed on the circumference of the outer edge of the top, a plurality of central distribution air holes 6 are evenly distributed on the outer wall of the central distribution pipe 4, a plurality of edge distribution air holes 7 are provided on the side of the edge distribution pipe 5 facing the central distribution pipe 4, and a plurality of auxiliary distribution air holes 14 are provided on the top of the hollow turntable 3. A hollow rotating shaft 8 is connected to the bottom of the hollow turntable 3, the hollow rotating shaft 8 is connected to the external ammonia inlet pipe, and a driving motor 9 is connected to the outer wall of the hollow rotating shaft 8 through a sprocket and a chain.

[0021] A support column 15 is provided at the bottom of the furnace body 1 , a motor support plate 16 is provided on the side wall of the support column 15 , and the driving motor 9 is mounted on the motor support plate 11 .

[0022] The preheated ammonia gas is passed through the hollow rotating shaft 8 to the hollow rotating disk 3, the central distribution pipe 4, and the edge distribution pipe 5, and the gas is distributed inside the furnace body 1 through the auxiliary distribution holes 14, the central distribution holes 6, and the edge distribution holes 7. At the same time, the hollow rotating shaft 8 can be driven by the driving motor 9, and the hollow rotating disk 3, the central distribution pipe 4, and the edge distribution pipe 5 rotate, so that the ammonia gas can be more evenly distributed in various positions of the furnace body 1, thereby ensuring the uniformity of nitriding.

[0023] An adjustable loading tray assembly 10 is installed below the furnace cover 2 in the furnace body 1. The adjustable loading tray assembly 10 includes two threaded rods 101 installed on the furnace cover 2. A number of loading trays 102 are penetrated on the two threaded rods 101. A through hole 103 is provided in the middle of the loading tray 102. The central distribution pipe 4 is penetrated in the through hole 103. Adjustment nuts 104 are tightened on the upper and lower surfaces of each loading tray 102 on the threaded rod 101.

[0024] According to the needs, a suitable number of placing trays 102 can be installed to place the raw material ferrovanadium, and the distance between the placing trays 102 can also be adjusted according to the needs, so that the adjustability is higher.

[0025] The material placing tray 102 is penetrated with a plurality of flow holes, which facilitate the flow of ammonia gas to ensure its uniformity.

[0026] The threaded rod 101 is passed through the furnace cover 2, and fixing nuts 105 are screwed on the upper and lower surfaces of the threaded rod 101. The threaded rod 101 and the furnace cover 2 are connected in a detachable manner, which is convenient for replacement, maintenance and installation.

[0027] A hoisting ring 13 is provided on the top of the furnace cover 2 to facilitate hoisting of the furnace cover 2 .

[0028] The utility model is described above by way of example in conjunction with the accompanying drawings. It is obvious that the specific implementation of the utility model is not limited to the above-mentioned method. As long as various improvements are made using the method concept and technical solution of the utility model, or are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.

Claims

1. A nitriding furnace for processing high nitrogen vanadium iron, characterized in that: The invention comprises a furnace body (1), a furnace cover (2) is installed on the top of the furnace body (1), a hollow turntable (3) is arranged at the bottom of the furnace body (1), a central distribution pipe (4) is arranged at the middle position of the top of the hollow turntable (3), and a plurality of edge distribution pipes (5) are evenly distributed on the circumference of the outer edge of the top, a plurality of central distribution air holes (6) are evenly distributed on the outer wall of the central distribution pipe (4), a plurality of edge distribution air holes (7) are opened on the side of the edge distribution pipe (5) facing the central distribution pipe (4), a hollow rotating shaft (8) is connected to the bottom of the hollow turntable (3), the hollow rotating shaft (8) is connected to an external ammonia gas inlet pipe, a driving motor (9) is connected to the outer wall of the hollow rotating shaft (8) through a sprocket and a chain, an adjustable material placing tray assembly (10) is installed in the furnace body (1) below the furnace cover (2), a heating resistor (11) is arranged on the inner wall of the furnace body (1), and an exhaust hole (12) is arranged on the side wall of the furnace body (1).

2. A nitriding furnace for processing high nitrogen ferrovanadium according to claim 1, characterized in that: The adjustable material placing tray assembly (10) comprises two threaded rods (101) mounted on a furnace cover (2), a plurality of material placing trays (102) are inserted through the two threaded rods (101), a through hole (103) is provided in the middle of the material placing tray (102), a central distribution pipe (4) is inserted in the through hole (103), and an adjusting nut (104) is screwed on the upper surface and the lower surface of each material placing tray (102) on the threaded rod (101).

3. A nitriding furnace for processing high nitrogen ferrovanadium according to claim 2, characterized in that: The material placement tray (102) is penetrated with a plurality of flow holes.

4. A nitriding furnace for processing high nitrogen ferrovanadium according to claim 3, characterized in that: The threaded rod (101) is passed through the furnace cover (2), and fixing nuts (105) are screwed on the upper surface and the lower surface of the furnace cover (2) of the threaded rod (101).

5. A nitriding furnace for processing high nitrogen ferrovanadium according to claim 4, characterized in that: A lifting ring (13) is provided on the top of the furnace cover (2).

6. A nitriding furnace for processing high nitrogen ferrovanadium according to claim 5, characterized in that: A plurality of auxiliary distribution air holes (14) are provided on the top of the hollow rotating disk (3).

7. A nitriding furnace for processing high nitrogen ferrovanadium according to claim 6, characterized in that: A support column (15) is provided at the bottom of the furnace body (1), a motor support plate (16) is provided on the side wall of the support column (15), and the drive motor (9) is mounted on the motor support plate (16).

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