Cooling device for sintered corundum production

Abstract

The utility model provides a cooling device for sintered corundum production, which relates to the field of sintered corundum production and comprises a cooling air supply pipe and a corundum sintering furnace body, the cooling air supply pipe is inserted into the corundum sintering furnace body, and a first arc-shaped guide pipe and a second arc-shaped guide pipe are respectively welded on the side surface of the cooling air supply pipe in a staggered manner. Air outlets are formed in the lower ends of the first arc-shaped guide pipe and the second arc-shaped guide pipe, an air blowing plate frame is fixed to the right side end of the cooling air supply pipe in a penetrating mode, an air blower is installed on the inner side of the air blowing plate frame in an embedded mode, and the left side of the air blowing plate frame blocks a furnace opening in one side of the corundum sintering furnace body through an air outlet net plate; and the right end of the cooling air supply pipe is connected with an industrial refrigeration fan through a cooling air pipe. The utility model solves the problem of uneven cooling caused by gradual increase of the temperature of the middle end and the tail end when low-temperature airflow guided in by an air guide pipe is intensively diffused outwards from the middle part in the prior art.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of building construction, concretely relates to a cooling device for sintered corundum production. BACKGROUND

[0002] Sintered corundum refers to refractory grog made of calcined alumina as raw material, which is sintered at a high temperature of 1750-1900 DEG C after being ground into balls or blanks. Its purity is slightly lower than that of tabular corundum, has a large bulk density, a low porosity, a high thermal shock resistance and slag corrosion resistance at high temperatures, a high grain strength, and the strength of sintered corundum depends on the content of Al2O3, sintering temperature and microstructure, and these phase changes affect the porosity and sintering crystal Young's modulus. Through research, the prior art (application number: CN202222893143.2) a silicon carbide sintering furnace cooling device is disclosed, which can make the air flow enter the inner wall of the furnace body at the bottom end when the fan blows, and the compressed air flow is mixed with the air flow generated by the fan after the compressor is started, so that the low-temperature air flow entering the inner wall of the furnace body increases the change rate again, and the high cooling efficiency is realized. However, in the prior art, the low-temperature air flow introduced by the air duct is concentrated and diffuses outward from the middle, which can easily cause the temperature of the middle and tail ends to gradually rise, resulting in uneven cooling. SUMMARY

[0003] In order to overcome the defects of the prior art, a cooling device for sintered corundum production is provided to solve the problem of uneven cooling caused by the gradual increase of the temperature of the middle and tail ends when the low-temperature air flow introduced by the air duct is concentrated and diffuses outward from the middle in the prior art.

[0004] In order to achieve the above-mentioned purpose, a cooling device for sintered corundum production is provided, which comprises: a cooling air duct and a corundum sintering furnace body, the cooling air duct is inserted into the corundum sintering furnace body,

[0005] The first arc-shaped duct and the second arc-shaped duct are respectively staggered and welded on the side surface of the cooling air duct, the first arc-shaped duct and the second arc-shaped duct are provided with an air outlet at the lower end, the right end of the cooling air duct is fixed with a blower plate frame, the blower plate frame is embedded with a blower fan, the left side of the blower plate frame is blocked by an air outlet net plate at the side opening of the corundum sintering furnace body, and the right end of the cooling air duct is connected with an industrial refrigeration fan through a cooling air duct.

[0006] Further, the cooling air duct is rectangular and square tube-shaped and located at the upper end of the furnace wall of the corundum sintering furnace body, and the second arc-shaped duct and the first arc-shaped duct are equidistantly welded on the front and rear side surfaces of the cooling air duct.

[0007] Further, the cooling air supply pipe is provided with a shunt opening on the wall of the inner cavity; and the cooling air supply pipe is connected with the first arc-shaped guide pipe and the second arc-shaped guide pipe through the shunt opening.

[0008] Further, the first arc-shaped guide pipe is provided with a side air outlet on the left side, and the second arc-shaped guide pipe is provided with a side air outlet on the right side.

[0009] Further, the air blowing plate frame is welded with an air outlet mesh plate on the left side, and the air outlet mesh plate corresponds to the position of the air blower; and the air blowing plate frame is welded with a handle on the right side.

[0010] Further, the air blowing plate frame is welded with a rolling support at the lower end; and two groups of universal rollers are installed on the lower end surface of the rolling support.

[0011] Further, the cooling air supply pipe, the first arc-shaped guide pipe, the second arc-shaped guide pipe, the air blowing plate frame and the air blower constitute a dispersion air supply type cooling mechanism of the corundum sintering furnace body.

[0012] The cooling device for sintered corundum production has the advantages that the cooling air supply pipe and the air blowing plate frame are respectively inserted and blocked at one side of the sintering furnace, cooling air flow is sent into the cooling air supply pipe through the industrial refrigeration fan, the cooling air flow is discharged into the inner cavity of the sintering furnace from the arc-shaped guide pipes at the two sides of the cooling air supply pipe, the air blower at one side blows the air in the furnace to flow, the cooling air flow is uniformly distributed in the sintering furnace, the air flow speed in the furnace is accelerated, the local temperature difference of the corundum raw material in the sintering furnace is reduced, the phenomenon that the sintered corundum is cracked or deformed due to uneven cooling is reduced, and the cooling effect of the corundum sintering cooling device is improved. BRIEF DESCRIPTION OF DRAWINGS

[0013] Fig. 1 It is a front view of a partial sectional structure of the cooling device for sintered corundum production.

[0014] Fig. 2 It is a side view of a sectional structure of the cooling device for sintered corundum production.

[0015] Fig. 3 It is a front view of a structure of the cooling device.

[0016] Fig. 4 It is a side view of a structure of the air blowing plate frame.

[0017] In the drawings: 1, cooling air supply pipe; 11, shunt opening; 12, air outlet; 13, first arc-shaped guide pipe; 14, second arc-shaped guide pipe; 15, side air outlet; 2, corundum sintering furnace body; 3, air blowing plate frame; 31, air blower; 32, air outlet mesh plate; 33, rolling support; 34, handle; 4, industrial refrigeration fan; 41, cooling air pipe. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0019] Referring to Figs. 1 to 4 The utility model provides a kind of cooling device for sintering corundum production, it includes: cooling air supply pipe 1 and corundum sintering furnace body 2, corundum sintering furnace body 2 is inserted with cooling air supply pipe 1 in furnace,

[0020] First arc-shaped conduit 13 and second arc-shaped conduit 14 are respectively staggered welded on the side surface of cooling air supply pipe 1, first arc-shaped conduit 13 and second arc-shaped conduit 14 are provided with air outlet 12 in lower end, air supply plate frame 3 is fixedly penetrated on the right side end of cooling air supply pipe 1, air blower 31 is embedded and installed in the inboard of air supply plate frame 3, air supply plate frame 3 left side is blocked at the one side furnace mouth of corundum sintering furnace body 2 by air outlet net plate 32, industrial refrigeration fan 4 is connected to cooling air supply pipe 1 by cooling air pipe 41 on the right end of cooling air supply pipe 1.

[0021] First, corundum sintering furnace body 2 furnace door is opened, cooling air supply pipe 1 is inserted into corundum sintering furnace body 2 furnace by air supply plate frame 3, industrial refrigeration fan 4 is started to send cooling airflow into cooling air supply pipe 1, so that cooling airflow is discharged into the sintering furnace inner cavity from the arc-shaped conduit at the both sides of cooling air supply pipe 1, while the air flow in the furnace is blown by the air blower 31 on one side, so that cooling airflow is more evenly distributed in the sintering furnace, the air flow speed in the furnace is accelerated, the local temperature difference of corundum raw materials in the sintering furnace is reduced, the phenomenon of crack or deformation of sintered corundum due to uneven cooling is reduced, and the cooling effect of corundum sintering cooling device is improved.

[0022] In the present embodiment, cooling air supply pipe 1 is rectangular square tube and located at the upper end of the furnace wall of corundum sintering furnace body 2, and second arc-shaped conduit 14 and first arc-shaped conduit 13 are equidistantly welded on the front and back side surfaces of cooling air supply pipe 1. The inner cavity wall of cooling air supply pipe 1 is provided with a shunt 11, and cooling air supply pipe 1 is connected with first arc-shaped conduit 13 and second arc-shaped conduit 14 through shunt 11. Side air outlet 15 is provided on the left side surface of first arc-shaped conduit 13 and the right side surface of second arc-shaped conduit 14.

[0023] As a preferred embodiment, the cooling air supply pipe 1, the second arc-shaped guide pipe 14 and the first arc-shaped guide pipe 13 are arranged outside the sintered corundum raw material, so that the cooling air flow discharged from the air outlet 12 and the side air outlet hole 15 is sent into the furnace, and the cooling air flow takes away the temperature on the surface of the sintered corundum raw material, so that the cooling effect is achieved.

[0024] In the embodiment, the air outlet net plate 32 is welded on the left side of the air blowing plate frame 3, and the air outlet net plate 32 corresponds to the position of the air blower 31, and the handle 34 is welded on the right side of the air blowing plate frame 3. The rolling support 33 is welded on the lower end of the air blowing plate frame 3, and two groups of universal rollers are installed on the lower end surface of the rolling support 33.

[0025] As a preferred embodiment, the air outlet net plate 32 facilitates blowing the natural wind blown by the air blower 31 to the other side, simultaneously accelerates the flow speed of the gas in the furnace, and facilitates more uniform cooling. The air blowing plate frame 3 is moved through the air blowing plate frame 3, so as to facilitate moving the cooling air supply pipe 1 out of or into the furnace.

[0026] In the embodiment, the cooling air supply pipe 1, the first arc-shaped guide pipe 13, the second arc-shaped guide pipe 14, the air blowing plate frame 3 and the air blower 31 constitute the dispersed air supply type cooling mechanism of the corundum sintering furnace body 2.

[0027] As a preferred embodiment, the dispersed air supply type cooling mechanism of the corundum sintering furnace body 2 facilitates more uniform flow distribution of the cooling air flow in the sintering furnace, accelerates the air flow speed in the furnace, reduces the local temperature difference of the corundum raw material in the sintering furnace, reduces the phenomenon that the sintered corundum is cracked or deformed due to uneven cooling, and improves the cooling effect of the corundum sintering cooling device.

[0028] The cooling device for sintered corundum production can effectively solve the problem that the low-temperature air flow introduced by the air guide pipe is concentrated and diffused from the middle to the outside, which causes the temperature of the middle and tail ends to gradually increase and the cooling to be uneven, facilitates more uniform flow distribution of the cooling air flow in the sintering furnace, accelerates the air flow speed in the furnace, reduces the local temperature difference of the corundum raw material in the sintering furnace, reduces the phenomenon that the sintered corundum is cracked or deformed due to uneven cooling, improves the cooling effect of the corundum sintering cooling device, and is suitable for the cooling device for sintered corundum production.

[0029] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A cooling device for sintered corundum production, comprising: Cooling air pipe (1) and corundum sintering furnace body (2), the corundum sintering furnace body (2) is inserted with cooling air pipe (1) in the furnace, characterized by: The first arc-shaped conduit (13) and the second arc-shaped conduit (14) are respectively staggered and welded on the side of the cooling air pipe (1), the first arc-shaped conduit (13) and the second arc-shaped conduit (14) are provided with air outlet openings (12) at the lower ends, the right end of the cooling air pipe (1) is penetrated and fixed with a blower plate frame (3), the blower plate frame (3) is embedded and installed with a blower (31) on the inner side, the left side of the blower plate frame (3) is blocked at the side opening of the corundum sintering furnace body (2) through an air outlet mesh plate (32), and the right end of the cooling air pipe (1) is connected with an industrial refrigeration fan (4) through a cooling air pipe (41).

2. The cooling device for sintered corundum production according to claim 1, characterized in that The cooling air pipe (1) is rectangular and square tube-shaped and located at the upper end of the corundum sintering furnace body (2); and the second arc-shaped conduit (14) and the first arc-shaped conduit (13) are equidistantly welded on the front and rear sides of the cooling air pipe (1).

3. The cooling device for sintered corundum production according to claim 2, characterized in that The inner cavity wall of the cooling air pipe (1) is provided with a shunt opening (11); and the cooling air pipe (1) is connected with the first arc-shaped conduit (13) and the second arc-shaped conduit (14) through the shunt opening (11).

4. The cooling device for sintered corundum production according to claim 1, characterized in that The left side of the first arc-shaped conduit (13) and the right side of the second arc-shaped conduit (14) are provided with side air outlet holes (15).

5. The cooling device for sintered corundum production according to claim 1, characterized in that The left side of the blower plate frame (3) is welded with an air outlet mesh plate (32); and the air outlet mesh plate (32) corresponds to the position of the blower (31), and the right side of the blower plate frame (3) is welded with a handle (34).

6. The cooling device for sintered corundum production according to claim 5, characterized in that The lower end of the blower plate frame (3) is welded with a rolling support (33); and the lower end of the rolling support (33) is installed with two groups of universal rollers.

7. The cooling device for sintered corundum production according to claim 1, characterized in that The cooling air pipe (1), the first arc-shaped conduit (13), the second arc-shaped conduit (14), the blower plate frame (3) and the blower (31) constitute a dispersed air supply type cooling mechanism of the corundum sintering furnace body (2).

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