Smelting furnace for glass production

Abstract

The utility model discloses a smelting furnace for glass production, which comprises a furnace body, the upper end of the furnace body is covered with an upper cover, the middle part of the upper end of the upper cover is fixedly connected with a feeding mechanism, the upper end of the feeding mechanism is fixedly connected with a hopper, the furnace body comprises a shell and an inner container sleeved in the shell, and the inner container is fixedly connected with the upper end of the upper cover. A gap cavity is reserved between the shell and the inner container, the lower end of the inner container is fixedly connected with a metal bottom shell, the side wall of the lower portion of the shell is fixedly connected with an induction coil, and the metal bottom shell corresponds to the induction coil in position. According to the utility model, the gap cavity is arranged and the induction coil is used for heating, so that the heating device has the advantages of energy conservation and environmental protection.

Description

Technical Field

[0001] The utility model relates to the technical field of melting furnaces, in particular to a melting furnace used for glass production. Background Art

[0002] Glass is an amorphous inorganic non-metallic material, which is generally made of a variety of inorganic minerals (such as quartz sand, borax, boric acid, barite, barium carbonate, limestone, feldspar, soda ash, etc.) as the main raw materials, and a small amount of auxiliary raw materials. Various materials are placed in a furnace and heated to melt and mix.

[0003] Most existing furnaces are heated by fuel combustion. During the heating process, the exhaust gas needs to be treated before it can be discharged, which increases the cost of treatment. At the same time, the discharged gas has more or less impact on the atmosphere. In addition, with this heating method, the heat generated is wasted with the exhaust gas, or the heat is lost due to the heat transfer of the furnace itself, and the energy saving effect is relatively poor. Utility Model Content

[0004] The purpose of the utility model is to provide a melting furnace for glass production, so as to solve the energy-saving and environmental protection problems existing in existing glass melting furnaces.

[0005] To achieve the above object, a melting furnace for glass production is provided, comprising a furnace body, the upper end of the furnace body is covered with an upper cover, a feeding mechanism is fixedly connected to the middle of the upper end of the upper cover, a hopper is fixedly connected to the upper end of the feeding mechanism, the hopper is used to temporarily store materials, and the materials are fed into the furnace through the feeding mechanism;

[0006] The furnace body includes a shell and an inner liner sleeved inside the shell, and a gap chamber is left between the shell and the inner liner. The gap chamber is evacuated to improve the heat preservation capacity of the furnace;

[0007] The lower end of the inner pot is fixedly connected to a metal bottom shell, and the lower side wall of the shell is fixedly connected to an induction coil. The metal bottom shell and the induction coil are positioned correspondingly. When the induction coil is energized, an induced current and heat are generated on the metal bottom shell, which is used to heat the material in the inner pot so that the material melts.

[0008] According to the melting furnace used for glass production, the feeding mechanism includes a shell, a second drop hole is arranged at the bottom of the shell, a driving motor is arranged inside the shell, and the output end of the driving motor is fixedly connected to a turntable, a first drop hole is arranged on the turntable, and the first drop hole coincides with the position of the second drop hole as the turntable rotates, that is, when material is added to the inner tank, the driving motor is started, the turntable rotates, so that the first drop hole and the second drop hole coincide, so that the material in the hopper passes through the first drop hole and the second drop hole into the inner tank, and when the first drop hole and the second drop hole are staggered, the feeding is stopped.

[0009] According to the melting furnace used for glass production, a connecting rod is fixedly connected to the side wall of the driving motor, and the other end of the connecting rod is fixedly connected to the inner wall of the casing, so as to fix the driving motor inside the casing.

[0010] According to the melting furnace used for glass production, a discharge nozzle is fixedly connected to the lower side wall of the shell, and a discharge pipe is fixedly connected to the lower middle part of the inner tank. The discharge pipe passes through the shell and emerges from the discharge nozzle. The molten material passes through the discharge pipe and is delivered from the discharge nozzle.

[0011] According to the melting furnace used for glass production, a hydraulic cylinder is arranged above the discharge nozzle, and a brake block is fixedly connected to the downwardly extending output end of the hydraulic cylinder, and the brake block moves downward to extend into a preset slot of the discharge nozzle and blocks the end of the discharge pipe. When the hydraulic cylinder is started, the brake block moves downward and is buckled in the discharge nozzle, that is, the brake block is in the lower position, blocking the discharge pipe, thereby stopping the discharge, and when the brake block moves upward and away from the discharge nozzle, that is, the brake block is in the upper position, and the material is delivered from the discharge nozzle.

[0012] According to the melting furnace for glass production, the hydraulic cylinder is fixedly connected to the side wall of the shell.

[0013] According to the melting furnace used for glass production, the side wall of the shell is provided with an exhaust port, the exhaust port is communicated with the gap chamber, the input end of the vacuum pump is connected to the exhaust pipe, and the vacuum pump works to realize the exhaust treatment of the exhaust pipe.

[0014] According to the furnace used for glass production, the shell includes an inner shell, a heat-insulating material and an outer shell, which are stacked in sequence to further improve the heat-insulating capacity of the furnace.

[0015] The beneficial effects of the utility model are as follows:

[0016] 1. The utility model has a furnace body consisting of an inner tank and a shell, and a gap chamber is provided between the inner tank and the shell, which can be vacuumed to avoid heat loss caused by heat transfer and has the advantage of energy saving.

[0017] 2. The utility model adopts induction coil heating, which can make the furnace structure simpler, have less impact on the environment, and be more environmentally friendly compared to the fuel combustion heating method.

[0018] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0020] Figure 1 It is a three-dimensional schematic diagram of a melting furnace used for glass production according to the utility model;

[0021] Figure 2 This is a schematic cross-sectional view of a furnace body of a melting furnace used for glass production according to the utility model;

[0022] Figure 3 This is a cross-sectional schematic diagram of a feeding mechanism of a melting furnace used for glass production according to the utility model;

[0023] Figure 4 for Figure 2 The enlarged view of point A in the middle;

[0024] Figure 5 The utility model is a schematic structural diagram of a shell of a melting furnace used for glass production.

[0025] Legend:

[0026] 1. Furnace body; 2. Exhaust port; 3. Upper cover; 4. Feeding mechanism; 5. Hopper; 6. Hydraulic cylinder; 7. Brake block; 8. Discharging nozzle; 9. Discharging pipe; 10. Inner liner; 11. Shell; 12. Metal bottom shell; 13. Gap chamber; 14. Induction coil;

[0027] 41. casing; 42. first blanking hole; 43. turntable; 44. drive motor; 45. second blanking hole; 46. connecting rod; 111. inner casing; 112. heat-insulating material; 113. outer casing. DETAILED DESCRIPTION

[0028] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0029] Reference Figure 1-5The utility model embodiment is a melting furnace for glass production, comprising a furnace body 1, the furnace body 1 is a cylindrical structure, the upper end of the furnace body 1 is covered with an upper cover 3, the middle part of the upper end of the upper cover 3 is fixedly connected with a feeding mechanism 4, and a through hole is provided on the upper cover 3, and the material passing through the feeding mechanism 4 passes through and enters the interior of the melting furnace, the upper end of the feeding mechanism 4 is fixedly connected with a hopper 5, the hopper 5 is used for temporarily storing materials, and the materials are introduced into the interior of the melting furnace through the feeding mechanism 4;

[0030] The furnace body 1 includes a shell 11 and an inner liner 10 sleeved inside the shell 11. The lower end of the inner liner 10 is hemispherical. A gap chamber 13 is left between the shell 11 and the inner liner 10. The gap chamber 13 is used to reduce heat loss caused by heat transfer. Furthermore, the gap chamber 13 is evacuated to improve the heat preservation capacity of the furnace.

[0031] The lower end of the inner pot 10 is fixedly connected to a metal bottom shell 12, which is also a hemispherical thin shell. The lower side wall of the shell 11 is fixedly connected to an induction coil 14. The metal bottom shell 12 and the induction coil 14 are positioned correspondingly. When power is supplied to the induction coil 14, eddy current heat is generated on the metal bottom shell 12, thereby heating the material in the inner pot 10 and melting it.

[0032] The feeding mechanism 4 includes a sleeve 41, a second drop hole 45 is provided at the bottom of the sleeve 41, a driving motor 44 is provided inside the sleeve 41, and the output end of the driving motor 44 is fixedly connected to a turntable 43, a first drop hole 42 is provided on the turntable 43, and the first drop hole 42 coincides with the position of the second drop hole 45 as the turntable 43 rotates, that is, after the first drop hole 42 and the second drop hole 45 coincide, upper and lower conduction is achieved, and the material passes through the first drop hole 42 and the second drop hole 45 into the inner tank 10.

[0033] A connecting rod 46 is fixedly connected to the side wall of the driving motor 44 , and the other end of the connecting rod 46 is fixedly connected to the inner wall of the casing 41 , so as to fix the driving motor 44 .

[0034] A discharge nozzle 8 is fixedly connected to the lower side wall of the shell 11 , and a discharge pipe 9 is fixedly connected to the lower middle part of the inner tank 10 . The discharge pipe 9 passes through the shell 11 and emerges from the discharge nozzle 8 . The molten material is delivered from the discharge nozzle 8 through the discharge pipe 9 .

[0035] A hydraulic cylinder 6 is arranged above the discharge nozzle 8, and a brake block 7 is fixedly connected to the downwardly extending output end of the hydraulic cylinder 6. The brake block 7 moves downward and extends into the preset slot of the discharge nozzle 8, and blocks the end of the discharge pipe 9. That is, when the brake block 7 is inside the discharge nozzle 8, the molten material is supplied to the block, driving the hydraulic cylinder 6 to work. After the brake block 7 is in the upper state, the molten material can be delivered from the discharge nozzle 8.

[0036] The hydraulic cylinder 6 is fixedly connected to the side wall of the housing 11 .

[0037] The side wall of the shell 11 is provided with an exhaust port 2, and the exhaust port 2 is connected to the gap chamber 13. A vacuum extraction device, such as a vacuum pump, is used to connect the input end of the vacuum pump and the exhaust port 2, and the vacuum pump is operated to evacuate the gap chamber 13; the shell 11 includes an inner shell 111, a thermal insulation material 112 and an outer shell 113, and they are stacked in sequence, and the thermal insulation material 112 is provided for heat preservation of the furnace.

[0038] Working principle: When in use, the driving motor 44 works, the first drop hole 42 and the second drop hole 44 overlap, and the material temporarily stored in the hopper 5 falls into the inner tank 10, and then the induction coil 14 is energized, and eddy currents and heat are generated in the metal bottom shell 12 to melt the material. The melted material enters the discharge nozzle 8 through the discharge pipe 9, and then the hydraulic cylinder 6 is actuated to make the brake block 7 in the upper state, so that the material can be delivered from the discharge nozzle 8.

[0039] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A furnace for glass production, characterized in that: It comprises a furnace body (1), the upper end of the furnace body (1) is covered with an upper cover (3), the middle part of the upper end of the upper cover (3) is fixedly connected to a feeding mechanism (4), and the upper end of the feeding mechanism (4) is fixedly connected to a hopper (5); The furnace body (1) comprises a shell (11) and an inner container (10) sleeved inside the shell (11), and a gap chamber (13) is left between the shell (11) and the inner container (10); The lower end of the inner container (10) is fixedly connected to a metal bottom shell (12), the lower side wall of the shell (11) is fixedly connected to an induction coil (14), the metal bottom shell (12) and the induction coil (14) are in corresponding positions, the feeding mechanism (4) comprises a casing (41), the bottom of the casing (41) is provided with a second blanking hole (45), the interior of the casing (41) is provided with a driving motor (44), the output end of the driving motor (44) is fixedly connected to a turntable (43), the turntable (43) is provided with a first blanking hole (42), and the first blanking hole (42) coincides with the position of the second blanking hole (45) as the turntable (43) rotates.

2. A melting furnace for glass production according to claim 1, characterized in that: A connecting rod (46) is fixedly connected to the side wall of the driving motor (44), and the other end of the connecting rod (46) is fixedly connected to the inner wall of the casing (41).

3. A melting furnace for glass production according to claim 1, characterized in that: A discharge nozzle (8) is fixedly connected to the lower side wall of the shell (11), and a discharge pipe (9) is fixedly connected to the middle of the lower end of the inner container (10). The discharge pipe (9) passes through the shell (11) and emerges from the discharge nozzle (8).

4. A melting furnace for glass production according to claim 3, characterized in that: A hydraulic cylinder (6) is arranged above the discharge nozzle (8), and a brake block (7) is fixedly connected to the output end of the hydraulic cylinder (6) extending downward. The brake block (7) moves downward to extend into a preset slot of the discharge nozzle (8) and blocks the end of the discharge pipe (9).

5. A melting furnace for glass production according to claim 4, characterized in that: The hydraulic cylinder (6) is fixedly connected to the side wall of the housing (11).

6. A melting furnace for glass production according to claim 1, characterized in that: The side wall of the shell (11) is provided with an exhaust port (2), and the exhaust port (2) is communicated with the gap chamber (13).

7. A melting furnace for glass production according to claim 1, characterized in that: The housing (11) comprises an inner shell (111), a heat-insulating material (112) and an outer shell (113), which are stacked in sequence.

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