Energy-saving preheating furnace for glassware mold

Abstract

The utility model belongs to the technical field of glassware production, and particularly relates to an energy-saving preheating furnace for a glassware mold, which comprises a furnace body, a refractory material is lined on the inner wall of the furnace body, a furnace cover is arranged at a furnace mouth, a spray gun imbedding cylinder is arranged on the side wall of the lower part of the furnace body, and the axial direction of the spray gun imbedding cylinder is tangent to the inner wall of the furnace body. When the glassware mold is heated in the furnace, heat dissipation can be prevented, the heat preservation and insulation effects are achieved, and the energy utilization rate is increased. And the axis direction of the flame spraying gun is tangent to the inner wall of the furnace body, so that an annular heating flame or an annular heating area can be formed in the furnace, the temperature of the mold is more uniform, and the situation of local overheating or insufficient heating is avoided.

Description

Technical Field

[0001] The utility model relates to an energy-saving preheating furnace for glassware moulds and belongs to the technical field of glassware production. Background Art

[0002] The molds for producing glassware need to be preheated: Glass is fluid at high temperatures. In order to be able to be smoothly molded and achieve the required precision, the mold needs to be kept in a stable temperature range. Preheating the mold can ensure that the mold temperature is close to the temperature of the glass liquid, thereby reducing the stress or deformation caused by the temperature difference. The preheated mold can reach the operating temperature faster, shortening the production cycle. When the glass liquid is poured into the preheated mold, there is less heat loss, allowing the glass to be quickly and evenly distributed in the mold. The appropriate mold temperature helps reduce bubbles and cracks in the glass and improve the uniformity and consistency of the product.

[0003] In the past, the method of preheating glassware molds by direct manual flame spray guns had the following obvious disadvantages:

[0004] The heating temperature is uneven. When the flame spray gun is manually operated for preheating, it is difficult to maintain a constant flame temperature and a uniform heating rate, which leads to uneven temperature distribution of the mold, and may cause local overheating or insufficient heating, affecting the molding quality of the glassware.

[0005] There are great safety hazards. Improper operation may cause fire or personal injury. Holding the flame spray gun for a long time will also increase the labor intensity for the operator.

[0006] Direct preheating with a flamethrower will cause heat to dissipate into the air, resulting in loss of heat energy and energy consumption and waste. Utility Model Content

[0007] In view of the above deficiencies in the prior art, the technical problem to be solved by the utility model is to provide an energy-saving preheating furnace for glassware molds to solve the above problems.

[0008] The utility model discloses an energy-saving preheating furnace for glassware moulds, comprising a furnace body, the inner wall of which is lined with refractory material, a furnace cover is arranged at the furnace mouth, a spray gun insertion tube is arranged on the lower side wall of the furnace body, and the axial direction of the spray gun insertion tube is tangent to the inner wall of the furnace body.

[0009] When the glassware mold is heated in the furnace, it can prevent heat from escaping, play a role in heat insulation, and improve energy utilization. In addition, the axial direction of the flame spray gun is tangent to the inner wall of the furnace, which can form a ring-shaped heating flame or a ring-shaped heating area in the furnace, making the temperature of the mold more uniform and avoiding local overheating or insufficient heating.

[0010] Preferably, the furnace mouth is in an inverted cone shape, and the furnace cover is also in an inverted cone shape that matches the furnace mouth, so that the furnace cover and the furnace mouth can be closely fitted by their own weight.

[0011] The furnace cover comprises an upper and lower layer of steel frame, the upper and lower layers of steel frame are connected by steel bars, and refractory wool is filled between the upper and lower layers of steel frame.

[0012] Preferably, a handle is provided on the steel reinforcement frame of the top layer for easy operation.

[0013] The utility model discloses a spray gun insertion tube provided with a refractory tube, wherein the refractory tube comprises an outer sleeve and an inner sleeve, wherein a refractory material layer is filled between the outer sleeve and the inner sleeve, so as to prevent the spray gun insertion tube from overheating and causing a reduction in the service life of the furnace body, and also to prevent the risk of burns caused by overheating of the spray gun insertion tube.

[0014] Preferably, a plurality of screws are provided on the outer wall of the mouth of the spray gun, a flange is provided at the mouth of the refractory tube, and the screws are inserted into the fixing holes of the flange and fastened by nuts.

[0015] In addition, the spray gun is inserted into the tube with an air port, and the refractory tube wall has an air passage, the position of the air port corresponds to the air passage, and the inside and outside of the furnace body can be connected through the air passage, which can balance the internal and external air pressures and prevent the pressure in the furnace from being too high.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] The heating temperature is more uniform: the axial direction of the flame spray gun is tangent to the inner wall of the furnace, which can form a ring-shaped heating flame or a ring-shaped heating zone in the furnace, so that the mold is heated more evenly, avoiding the problem of local overheating or insufficient heating, thereby improving the molding quality and precision of the glassware.

[0018] Reduce safety risks: Using a preheating furnace instead of manually operating a flamethrower significantly reduces the risk of fire and burns. At the same time, the sealing design of the preheating furnace also reduces the heat radiation damage to operators.

[0019] Energy saving: The thermal insulation design of the preheating furnace effectively reduces heat dissipation, reduces heat loss and improves energy utilization efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 It is a schematic diagram of the exploded structure of the utility model;

[0022] Figure 3 It is a schematic diagram of the overall structure of the refractory tube;

[0023] Figure 4 It is a schematic diagram of the cross-sectional structure of the refractory tube;

[0024] Figure 5 It is a structural diagram of the furnace cover.

[0025] In the figure: 1. furnace body; 11. furnace mouth; 2. furnace cover; 21. steel frame; 22. refractory cotton; 23. handle; 3. spray gun insertion tube; 31. screw; 32. air port; 4. refractory tube; 41. outer sleeve; 42. inner sleeve; 43. refractory material layer; 44. flange; 45. air duct. DETAILED DESCRIPTION

[0026] The utility model is further described below in conjunction with specific embodiments.

[0027] However, the description of the present invention is merely an embodiment of structural and even functional description, and the scope of rights of the present invention is not limited by the embodiments described in the text.

[0028] For example, multiple embodiments may have multiple changes and multiple forms, and it should be understood that the scope of rights of the present utility model includes equivalents that can realize the technical idea.

[0029] like Figures 1 to 5 As shown, this embodiment is realized by the following technical scheme: comprising a furnace body 1, the inner wall of the furnace body 1 is lined with refractory material, a furnace cover 2 is provided at the furnace mouth 11, the furnace cover 2 comprises an upper and lower layer of steel frame 21, the upper and lower layers of steel frame 21 are connected by steel bars, refractory wool 22 is filled between the upper and lower layers of steel frame 21, and a handle 23 is provided on the top layer of steel frame 21. The furnace mouth 11 is in an inverted cone shape as a whole, and the furnace cover 2 is also in an inverted cone shape adapted to the furnace mouth 11, and the furnace cover 2 can be ensured to fit tightly with the furnace mouth 11 by its own weight.

[0030] A spray gun insertion tube 3 is provided on the lower side wall of the furnace body 1, and the axial direction of the spray gun insertion tube 3 is tangent to the inner wall of the furnace body 1. A refractory tube 4 is provided in the spray gun insertion tube 3, and the refractory tube 4 includes an outer sleeve 41 and an inner sleeve 42, and a refractory material layer 43 is filled between the outer sleeve 41 and the inner sleeve 42. A plurality of screws 31 are provided on the outer wall of the mouth of the spray gun insertion tube 3, and a flange 44 is provided at the mouth of the refractory tube 4. The screws 31 are inserted into the fixing holes of the flange 44 and fastened by nuts. When the glassware mold is heated in the furnace, heat dissipation can be prevented, which plays a role in heat preservation and heat insulation, and improves energy utilization. In addition, the axial direction of the flame spray gun is tangent to the inner wall of the furnace body, and an annular heating flame or annular heating zone can be formed in the furnace, so that the temperature of the mold is more uniform, avoiding local overheating or insufficient heating.

[0031] In addition, a gas port 32 is opened on the spray gun insertion tube 3, and a gas channel 45 is opened in the wall of the refractory tube 4. The position of the gas port 32 corresponds to the gas channel 45. The inside and outside of the furnace body 1 can be connected through the gas channel 45, which can balance the internal and external air pressures and prevent the pressure in the furnace from being too high.

[0032] Of course, the above contents are only preferred embodiments of the present invention and cannot be considered to limit the scope of the embodiments of the present invention. The present invention is not limited to the above examples, and any equivalent changes and improvements made by ordinary technicians in the technical field within the essential scope of the present invention shall fall within the scope of the patent coverage of the present invention.

Claims

1. An energy-saving preheating furnace for glassware molds, It is characterized in that The furnace body (1) comprises a furnace body (1), the inner wall of which is lined with refractory material, a furnace cover (2) is arranged at a furnace mouth (11), a spray gun insertion tube (3) is arranged on the lower side wall of the furnace body (1), and the axial direction of the spray gun insertion tube (3) is tangent to the inner wall of the furnace body (1).

2. The energy-saving preheating furnace for glassware molds according to claim 1, It is characterized in that The furnace opening (11) is in an inverted cone shape, and the furnace cover (2) is also in an inverted cone shape matching the furnace opening (11).

3. The energy-saving preheating furnace for glassware molds according to claim 1 or 2, It is characterized in that The furnace cover (2) comprises an upper and lower layer of steel frame (21), the upper and lower layers of steel frame (21) are connected by steel bars, and refractory wool (22) is filled between the upper and lower layers of steel frame (21).

4. The energy-saving preheating furnace for glassware molds according to claim 3, It is characterized in that A handle (23) is provided on the steel reinforcement frame (21) of the top layer.

5. The energy-saving preheating furnace for glassware molds according to claim 1, It is characterized in that A refractory tube (4) is arranged inside the spray gun insertion tube (3), and the refractory tube (4) comprises an outer sleeve (41) and an inner sleeve (42), and a refractory material layer (43) is filled between the outer sleeve (41) and the inner sleeve (42).

6. The energy-saving preheating furnace for glassware molds according to claim 5, It is characterized in that A plurality of screws (31) are arranged on the outer wall of the mouth of the spray gun insertion tube (3), and a flange (44) is arranged at the mouth of the refractory tube (4). The screws (31) are inserted into the fixing holes of the flange (44) and are fastened by nuts.

7. The energy-saving preheating furnace for glassware molds according to claim 5 or 6, It is characterized in that The spray gun insertion tube (3) is provided with an air port (32), and the wall of the refractory tube (4) is provided with an air passage (45). The position of the air port (32) corresponds to the air passage (45), and the inside and outside of the furnace body (1) can be connected through the air passage (45).

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