Glass kiln

Abstract

The utility model discloses a glass kiln, which belongs to the technical field of glass melting production equipment and comprises a glass kiln body, a heating kiln is arranged in the glass kiln body, and a feeding device is arranged on the front side of the heating kiln. A heat insulation plate is arranged between the feeding device and the heating kiln, and a feeding port is formed in the heat insulation plate; the feeding device comprises a feeding bin, a material distribution plate is arranged below the feeding bin, and the end, close to the heating kiln, of the material distribution plate is arranged in a downward inclined mode, penetrates through the feeding opening and extends to the position above the heating kiln. The heating furnace has the beneficial effects that the inclined angle of the bottom wall of the heating furnace is arranged to form the downwards inclined slope, the preheating area, the melting area and the homogenizing area are divided by utilizing the height difference of the slope of the bottom wall, glass powder flows along the bottom wall of the heating furnace by utilizing the gravity of the glass powder, and the processing process is gradually finished according to the sequence of preheating, melting and homogenizing; through multi-section heating, gradual melting of the glass powder is ensured, unmelted materials and bubbles are reduced, and the melting efficiency of the glass powder is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to glass melting production equipment technical field, more particularly to a glass kiln. BACKGROUND

[0002] In the glass production process, the glass kiln generally adopts the heating mode of electrical mixing to melt the glass powder. The upper part of the kiln generally adopts full oxygen combustion heating, and the lower part of the kiln generally adopts the mode of heating and melting the glass powder by a plurality of pairs of electrodes. In the process of the glass powder just entering the kiln through the feeding port, the glass powder is mainly melted by the heat radiation of the flame sprayed by the heating burner, and at this time the temperature is not enough to fully melt the glass powder, forming a non-melted state between solid and liquid, forming a size different material pile under the feeding port, and then the material pile is heated by the electrodes and the burners under the condition of continuous heating, and the glass liquid begins to melt gradually and flows forward.

[0003] In the process of continuous melting of the glass powder, the surface continuously absorbs heat, the viscosity increases, and a "foam layer" is formed on the surface of the glass liquid. Therefore, the heat required near the feeding port is much higher than that in the rear. When the material pile accumulates to a certain extent, the material pile may swing left and right or even collapse, causing unstable temperature in the kiln and blocking the flow of the glass liquid. The flowability of the glass liquid has an important influence on the movement of the molten glass liquid, the unmelted mixture and the bubbles, the shaping of the glass, the homogenization of the glass liquid and the erosion of the refractory material. Therefore, it is very important to control the position and distribution of the material pile and the flow of the glass liquid.

[0004] The national utility model patent with the patent number 202222393801.1 discloses a glass kiln, which is provided with a plurality of glass powder heating devices to improve the melting speed of the glass powder and solve the above problems, but there are still problems of glass powder stacking and poor flowability of the glass solution. UTILITY MODEL CONTENT

[0005] To solve the above problems and overcome the shortcomings of the prior art, the utility model provides a glass kiln.

[0006] The technical problem solved is that the glass powder is prone to stacking and uneven distribution, causing unstable temperature in the kiln and blocking the flow of the glass liquid.

[0007] The specific technical scheme for solving the above technical problem is that the glass kiln comprises a glass kiln body, a heating kiln is arranged in the glass kiln body through an insulating mounting frame, a preset number of heating lances are arranged above the heating kiln, and a feeding device is arranged on the front side of the heating kiln.

[0008] The bottom wall inclination of the heating kiln is arranged to form a downward inclined slope, and the inside of the heating kiln is divided into a preheating zone, a melting zone and a homogenizing zone in sequence by the height difference of the slope, and different numbers of independent heating lances are arranged in the zones respectively.

[0009] The feeding device and the heating kiln are provided with a heat insulation plate, and the heat insulation plate is provided with a feeding opening; the feeding device comprises a feeding bin, the bottom of the feeding bin is provided with a feeding opening, the lower portion of the feeding bin is provided with a distributing plate, the distributing plate is installed on the fixed frame through a vibrating frame, the end of the distributing plate close to the heating kiln is arranged to be inclined downward, and the distributing plate extends to the upper portion of the heating kiln through the feeding opening.

[0010] Further, the melting zone and the homogenizing zone are respectively provided with stirring paddles, the stirring end of the stirring paddle is arranged in the heating kiln, the other end of the stirring paddle is connected with a motor arranged outside the glass kiln body through the glass kiln body, and the stirring paddle and the top wall of the glass kiln body are sealingly arranged through a bearing.

[0011] Further, the distributing plate is provided with a material blocking plate on both sides.

[0012] Further, the vibrating frame is provided with a vibrating motor, the vibrating motor is fixedly installed on the end of the vibrating frame away from the distributing plate, spring bases are arranged at the positions of the four corners of the bottom end of the vibrating frame, and the spring bases are fixedly arranged on the mounting frame.

[0013] The beneficial effects of the present application are as follows:

[0014] An advantage of the present application is that the bottom wall inclination of the heating kiln is arranged to form a downward inclined slope, the preheating zone, the melting zone and the homogenizing zone are divided by the height difference of the bottom wall slope, the glass powder flows along the bottom wall of the heating kiln by its own gravity, and the processing process is gradually completed in the order of preheating, melting and homogenizing, the glass powder is gradually melted through multi-stage heating, the un-melted material and bubbles are reduced, and the melting efficiency of the glass powder is improved.

[0015] An advantage of the present application is that the stirring paddles are arranged in the melting zone and the homogenizing zone, the stirring paddles stir the glass liquid, greatly accelerate the melting and homogenizing process of the glass liquid, shorten the production cycle of the glass liquid, and improve the production efficiency.

[0016] An advantage of the present application is that the feeding device is arranged, the distributing plate is vibrated by the vibrating motor, the glass powder can be uniformly distributed on the distributing plate, the powder accumulation or uneven distribution is avoided, the uniform heating and melting of the subsequent glass powder are laid a foundation, and the stability of the quality of the glass product is improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] ATTACHFigure 1 is a structural schematic diagram of the utility model;

[0018] attached Figure 2 is a structural schematic diagram of the feeding device of the utility model;

[0019] attached Figure 3 is a structural schematic diagram of the heating kiln of the utility model; in the drawings:

[0020] 1. glass kiln body;11. Insulating mounting bracket;12. Fixed frame;13. Heat insulation plate;131. Feeding port;2. Heating kiln;21. Preheating zone;22. Melting zone;23. Homogenization zone;24. Heating spray gun;3. Feeding device;31. Feeding bin;311. Feeding port;32. Distributing plate;321. Blocking plate;33. Vibration frame;34. Vibration motor;35. Spring base;4. Stirring paddle. Specific implementation:

[0021] In the description of the utility model, it is understood that the terms "center", "upper", "lower", "left", "right", "back", "left lower", "right upper", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, therefore it cannot be understood as a limitation on the protection scope of the utility model. In addition, the terms "first", "second" and "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0022] The specific implementation of the utility model: the glass kiln comprises a glass kiln body 1, a heating kiln 2 is arranged in the glass kiln body 1 through a high-temperature-resistant insulating mounting bracket 11, the insulating mounting bracket 11 is fixedly arranged in the heating kiln body 1 in the form of bolts or welding, a plurality of heating spray guns 24 are arranged above the heating kiln 2, and a feeding device 3 is arranged at the front side of the heating kiln 2.

[0023] As an improvement point of the utility model,

[0024] The bottom wall of the heating kiln 2 is inclined to form a downward inclined slope, the inside of the heating kiln 2 is sequentially divided into a preheating zone 21, a melting zone 22 and a homogenization zone 23 by the height difference of the slope, and different numbers of independent heating spray guns 24 are arranged respectively; the heating spray guns 24 are arranged on the insulating mounting bracket 11; by adjusting the number or heating power of the heating spray guns 24 of the preheating zone 21, the melting zone 22 and the homogenization zone 23, the heating temperature is ensured to increase sequentially; as a preferred, the heating kiln 2 bottom can also be provided with a heating electrode, which is uniformly laid along the inclined direction of the heating kiln 2;

[0025] As preferred, stirring paddles 4 are arranged in the melting zone 22 and the homogenizing zone 23, respectively, which are made of high-temperature-resistant and corrosion-resistant materials, the stirring ends of the stirring paddles 4 are arranged in the heating kiln 2, the other ends are connected with motors arranged outside the glass kiln body 1, the stirring paddles 4 are sealingly arranged between the top wall of the glass kiln body 1 and the bearings, and the bearings are made of high-temperature-resistant ceramic bearings.

[0026] A heat insulation plate 13 is arranged between the feeding device 3 and the heating kiln 2, the heat insulation plate 13 is fixedly arranged in the glass kiln body 1, and the heat insulation plate 13 is provided with a feeding opening 131; the feeding device 3 comprises a feeding bin 31, and the bottom of the feeding bin 31 is provided with a feeding opening 311; a distributing plate 32 is arranged below the feeding bin 31, and material blocking plates 321 are arranged on the two sides of the distributing plate 32 to limit the lateral expansion of the glass powder and prevent the glass powder from falling outside the distributing plate 32.

[0027] The distributing plate 32 is installed on the fixed frame 12 through a vibrating frame 33, the fixed frame 12 is fixedly arranged in the heating kiln body 1, the distributing plate 32 and the vibrating frame 33 are fixedly connected through bolts, spring bases 35 are arranged at the bottom ends of the four corners of the vibrating frame 33, and the spring bases 35 are fixedly arranged on the fixed frame 12; a vibrating motor 34 is fixedly installed at the end of the vibrating frame 33 away from the distributing plate 32, and the glass powder on the distributing plate 32 is uniformly distributed through vibration; the vibrating motor 34 can be a high-temperature insulation type vibrating motor and / or a forced air cooling type vibrating motor, and since the heat insulation plate is arranged, most of the heat in the heating kiln 2 can be insulated, so that the vibrating motor 34 can stably work in the heating kiln body 1; the end of the distributing plate 32 close to the heating kiln 2 is downwardly inclined and arranged, and extends to above the heating kiln 2 through the feeding opening 131, so as to facilitate the glass powder to flow to the heating kiln 2 under the action of vibration.

[0028] It should be noted that the utility model is a glass kiln, and when working, the glass powder falls from the feeding bin 31 through the bottom feeding opening 311 and falls on the distributing plate 32 below. The vibrating motor 34 is started to drive the vibrating frame 33 to vibrate, the distributing plate 32 is fixedly connected with the vibrating frame 33, and then the distributing plate 32 is vibrated to uniformly distribute the glass powder on the distributing plate 32. Since the distributing plate 32 is downwardly inclined, the glass powder flows to the heating kiln 2 through the feeding opening 131 under the action of vibration.

[0029] The vibrating motor 34 drives the distributing plate 32 to vibrate, which can uniformly distribute the glass powder on the distributing plate 32, avoids the accumulation or uneven distribution of the powder, lays a foundation for the uniform heating and melting of the subsequent glass powder, and improves the stability of the quality of the glass product.

[0030] After entering the heating kiln 2, the glass powder first reaches the preheating zone 21. Because the bottom wall of the heating kiln 2 is in the form of a downward inclined slope, the glass powder moves along the bottom wall of the heating kiln 2 to the deep part of the heating kiln 2 by using its own gravity, and sequentially flows through the preheating zone 21, the melting zone 22 and the homogenizing zone 23;

[0031] The heating lances 24 arranged in the preheating zone 21 preheat the glass powder to make it preliminarily softened. As the glass powder slides down the slope into the melting zone 22, the temperature here is higher than that in the preheating zone 21, and by increasing the number or the heating power of the heating lances 24, the glass powder is fully melted under the action of the higher temperature. The melted glass liquid continues to flow into the homogenizing zone 23, which has a temperature higher than that in the melting zone 22 by increasing the number or the heating power of the heating lances 24, to further homogenize the glass liquid and eliminate un-melted material and bubbles.

[0032] Compared with the prior art which is provided with multiple glass powder heating devices to improve the melting speed of the glass powder, there is still the problem of glass pile-up affecting the flowability of the glass solution; in the present scheme, the heating kiln 2 divides the preheating zone 21, the melting zone 22 and the homogenizing zone 23 by the height difference of the bottom wall slope, so that the glass powder can gradually complete the processing process in the order of preheating, melting and homogenizing. By multi-stage heating, the glass powder is gradually melted, the un-melted material and bubbles are reduced, and the melting efficiency of the glass powder is improved.

[0033] In the melting zone 22 and the homogenizing zone 23, the stirring paddles 4 are driven by the motor to operate to stir the glass liquid and accelerate the melting and homogenizing process of the glass liquid. One end of the stirring paddle 4 stirs in the heating kiln 2, and the other end is connected with the external motor through the high-temperature-resistant ceramic bearing sealing through the top wall of the glass kiln body 1 to the outside, so as to ensure stable operation and good sealing in the high-temperature environment.

[0034] The stirring paddles 4 are arranged in the melting zone 22 and the homogenizing zone 23, and are made of high-temperature-resistant and corrosion-resistant materials and cooperate with the high-temperature-resistant ceramic bearing to stably operate in the high-temperature and harsh environment. The stirring paddles 4 stir the glass liquid to greatly accelerate the melting and homogenizing process of the glass liquid, shorten the glass production cycle and improve the production efficiency. At the same time, the stirring helps to eliminate the un-melted material and bubbles in the glass liquid, further improving the quality of the glass product.

[0035] The basic principle and main features of the present application and the advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A glass kiln, comprising a glass kiln body (1), a heating kiln (2) is arranged in the glass kiln body (1) through an insulating mounting frame (11), a preset number of heating lances (24) are arranged above the heating kiln (2), and a feeding device (3) is arranged at the front side of the heating kiln (2); characterized in that: the bottom wall of the heating kiln (2) is arranged at an inclination angle to form a downwardly inclined slope, the inside of the heating kiln (2) is sequentially divided into a preheating zone (21), a melting zone (22) and a homogenizing zone (23) by using the height difference of the slope, and different numbers of independent heating lances (24) are arranged in the zones respectively; a heat insulation plate (13) is arranged between the feeding device (3) and the heating kiln (2), the heat insulation plate (13) is provided with a feeding opening (131), the feeding device (3) comprises a feeding bin (31), the bottom of the feeding bin (31) is provided with a feeding opening (311), a distributing plate (32) is arranged below the feeding bin (31), the distributing plate (32) is installed on a fixed frame (12) through a vibrating frame (33), the distributing plate (32) is arranged downwardly inclined at the end close to the heating kiln (2) and extends above the heating kiln (2) through the feeding opening (131).

2. A glass furnace as claimed in claim 1, characterized in that the melting zone (22) and the homogenizing zone (23) are respectively provided with stirring paddles (4), the stirring end of the stirring paddle (4) is arranged in the heating kiln (2), the other end is connected with a motor arranged outside the glass kiln body (1), and the stirring paddle (4) and the top wall of the glass kiln body (1) are sealingly arranged through a bearing.

3. A glass furnace as claimed in claim 1, characterized in that material blocking plates (321) are arranged on both sides of the distributing plate (32).

4. A glass furnace as claimed in claim 1, characterized in that a vibrating motor (34) is arranged on the vibrating frame (33), the vibrating motor (34) is fixedly installed at the end of the vibrating frame (33) away from the distributing plate (32), spring bases (35) are arranged at the bottom end of the vibrating frame (33) at four corners, and the spring bases (35) are fixedly arranged on the mounting frame.

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