Energy saving cone

Abstract

The present invention discloses an energy-saving cone, which belongs to the technical field of energy-saving of heating furnaces and kilns, and is applied to heating furnaces and kilns. The inner wall of the heating furnace and kiln is fixedly connected with a uniformly distributed support seat, and an adjusting ball is installed on the side of the support seat away from the heating furnace and kiln, and an energy-saving cone body is fixedly connected on the side of the adjusting ball away from the support seat, and a radiation cavity is opened on the side of the energy-saving cone body away from the adjusting ball, and a plurality of adjustment frames are arranged inside the heating furnace and kiln. In the invention, by setting the energy-saving cone body including a connecting base and an external reinforcement ring, the heating area inside the furnace and kiln can be increased, and then the heat transfer efficiency can be improved, so that the radiation cavity can convert convective heat transfer into radiative heat transfer to achieve energy-saving effect, and the high-temperature and high-emissivity coating has a thermal radiation refractive index, which further improves the energy-saving effect, so that the device can achieve simple installation process, short construction time, low construction difficulty, and is suitable for large-scale promotion.

Description

Technical Field

[0001] The invention relates to the technical field of energy saving of heating furnaces, and more specifically to an energy saving cone. Background Art

[0002] In order to improve the thermal efficiency of industrial heating furnaces, scientific and technological workers from various countries have conducted fruitful explorations. According to the British "Glass" No. 10.1992 report, honeycomb refractory bricks are used on the top of glass tank kilns to enhance heat transfer by increasing the furnace area. In theory, energy saving can be achieved by 5-8%, but the heat rays cannot be regulated, and the heat rays cannot be directly directed at the heated workpiece, and the energy saving rate is not high. According to the book "Practical Energy Saving Technology" (Shanghai Science and Technology Press, April 1993), the Mizushima Plant of Kawasaki Steel Company in Japan has a "device for changing the heat transfer mode" on the steel rolling heating furnace, which converts part of the convective heat transfer into radiation heat transfer to improve the heat transfer efficiency and save about 5% of the energy in the heating furnace.

[0003] However, this method does not increase the heat transfer area much, cannot control the heat rays, and fails to improve the emissivity; the "Journal of Infrared and Millimeter" published an article entitled "High Emissivity Energy-Saving Coatings and Their Applications" in December 1993, which uses infrared spraying of the furnace to save energy. Because this method cannot control the heat rays and does not increase the heat transfer area, the energy saving effect is about 5-10%, and the service life is between 5 and 12 months; the "Strong Radiation Heat Transfer Energy-Saving Industrial Furnace" with patent number ZL94236755.3, although it solves the problems of increasing the heat transfer area, improving the emissivity, and controlling the heat rays, with an energy saving rate of 15-20%, its implementation method is complex, the construction is difficult, the construction time is too long, and it cannot be constructed when encountering harder refractory materials because holes cannot be drilled, etc., and its application is greatly limited. Summary of the invention

[0004] 1. Technical problems to be solved

[0005] In view of the problems existing in the prior art, the purpose of the present invention is to provide an energy-saving cone, which has the advantages of simple installation process, short construction time, low construction difficulty, and suitable for large-scale promotion. It solves the problems of complex implementation method, great construction difficulty, long construction time, and inability to construct when encountering harder refractory materials due to the inability to drill holes.

[0006] 2. Technical solution

[0007] To solve the above problems, the present invention adopts the following technical solutions.

[0008] An energy-saving cone is applied to a heating furnace, wherein the inner wall of the heating furnace is fixedly connected with a uniformly distributed support seat, the support seat is provided with an adjusting ball on the side away from the heating furnace, the adjusting ball is fixedly connected with an energy-saving cone body on the side away from the support seat, a radiation cavity is opened on the side of the energy-saving cone body away from the adjusting ball, a plurality of adjusting frames are arranged inside the heating furnace, the plurality of adjusting frames are respectively hinged with the plurality of energy-saving cone bodies, a connecting rod is fixedly connected between two adjacent adjusting frames, two sealing tubes are arranged on the top of the heating furnace, a lifting rod is slidably connected with the inner end surface of the sealing tube, the bottoms of the two lifting rods are respectively fixedly connected with the top of the adjusting frame at the top, the tops of the two lifting rods are fixedly connected with an integrally formed positioning plate, a threaded column is rotatably connected with the top of the heating furnace, the top of the threaded column passes through and is threadedly connected to the top of the positioning plate, and the inner wall of the heating furnace, the outer surface of the energy-saving cone body and the inner wall of the radiation cavity are coated with high-temperature and high-emissivity coating.

[0009] Preferably, the energy-saving cone body includes a connecting base and an external reinforcement ring, the connecting base is fixedly connected to the adjusting ball, the external reinforcement ring is sleeved on the outside of the connecting base, the radiation cavity is opened on the connecting base, and the external reinforcement ring is hinged to the adjusting frame.

[0010] Preferably, the external reinforcement ring is composed of a plurality of semicircular connecting strips, and the plurality of semicircular connecting strips are fixedly connected to the connecting base in a ring shape with the radiation cavity as the axis.

[0011] Preferably, the support seat is fixedly connected to the inner wall of the heating furnace by bonding.

[0012] Preferably, the energy-saving cone body is made of a refractory material or a stainless steel material; the refractory material is a ceramic material; and the ceramic material is ceramic fiber.

[0013] Preferably, it comprises a square control frame and an articulated rod, wherein the square control frame is arranged inside the heating furnace, and the articulated rod is articulated between the square control frame and the energy-saving cone body.

[0014] Preferably, the high temperature and high emissivity coating is made by the following method:

[0015] A: Weigh and prepare the materials according to the weight ratio of each component.

[0016] Silicon carbide 25-250 parts,

[0017] 150-250 parts of aluminum oxide,

[0018] 5-75 parts of iron oxide,

[0019] 1 to 25 parts of zirconium oxide,

[0020] Manganese oxide 0-25 parts,

[0021] Rare earth oxides 0~50,

[0022] Boron carbide 0-60 parts,

[0023] 0-60 parts of bentonite,

[0024] Refractory clay 0-160 parts,

[0025] Titanium dioxide 0-120 parts,

[0026] 70-300 parts of silica sol,

[0027] 0-40 parts of water glass,

[0028] 0-60 parts of carboxymethyl cellulose,

[0029] The main solvents are silica sol and water glass, and carboxymethyl cellulose is the auxiliary dispersing solvent.

[0030] B: The filler, rare earth oxide and organic solvent are mixed by high-speed stirring or sand film mixing for 1 to 3 hours, and the mixed ingredients are sintered at a high temperature of 1200 to 1400°C for 1 to 3 hours;

[0031] C: Mix the refined material with the solvent in proportion to make a viscous suspension liquid to obtain a high-temperature and high-emissivity coating.

[0032] Preferably, the thickness of the high-temperature and high-emissivity coating is 0.02 to 1 mm.

[0033] Compared with the prior art, the advantages of the present invention are:

[0034] By setting up an energy-saving cone body including a connecting base and an external reinforcement ring, the heated area inside the furnace can be increased, thereby improving the heat transfer efficiency, so that the radiation cavity can convert convective heat transfer into radiation heat transfer to achieve energy-saving effects. The rotating threaded column can drive the lifting rod through the positioning plate, and the lifting rod can drive multiple adjustment frames, which can drive all the energy-saving cone bodies, so that the energy-saving cone body can be controlled to adjust the angle, and then the angle can be fine-tuned according to the different furnaces, thereby achieving the best heat transfer efficiency. The high-temperature and high-emissivity coating has a thermal radiation refractive index, which further improves the energy-saving effect, so that the device has a simple installation process, a short construction time, and low construction difficulty, which is suitable for large-scale promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a structural schematic diagram of the present invention;

[0036] Figure 2 For the present invention Figure 1 A schematic diagram of the enlarged structure at A in the middle;

[0037] Figure 3 It is a schematic cross-sectional diagram of the connection structure between the energy-saving cone body and the adjustment frame of the present invention;

[0038] Figure 4 It is a schematic diagram of the connection structure between the adjusting ball and the energy-saving cone body of the present invention;

[0039] Figure 5 It is a schematic diagram of the connection structure between the adjustment frame and the connecting rod of the present invention.

[0040] Description of the numbers in the figure:

[0041] 1. Heating furnace; 2. Support seat; 3. Adjusting ball; 4. Threaded column; 5. Energy-saving cone body; 501. Connecting base; 502. External reinforcement ring; 6. Radiation cavity; 7. Adjusting frame; 701. Square control frame; 702. Articulated rod; 8. Connecting rod; 9. Sealing tube; 10. Lifting rod; 11. Positioning plate. DETAILED DESCRIPTION

[0042] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making creative work are within the scope of protection of the present invention.

[0043] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0044] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "mounted / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0045] See also Figure 1-Figure 5, an energy-saving cone, applied to a heating furnace 1, the inner wall of the heating furnace 1 is fixedly connected with a uniformly distributed support seat 2, an adjusting ball 3 is installed on the side of the support seat 2 away from the heating furnace 1, and an energy-saving cone body 5 is fixedly connected on the side of the adjusting ball 3 away from the support seat 2, and a radiation cavity 6 is opened on the side of the energy-saving cone body 5 away from the adjusting ball 3, a plurality of adjusting frames 7 are arranged inside the heating furnace 1, and the plurality of adjusting frames 7 are respectively hinged with the plurality of energy-saving cone bodies 5, and a connecting rod 8 is fixedly connected between two adjacent adjusting frames 7, and two sealing tubes 9 are installed on the top of the heating furnace 1, and the inner end surface of the sealing tube 9 is slidably connected with a lifting rod 10, and the bottoms of the two lifting rods 10 are respectively fixedly connected with the top of the adjusting frame 7 at the top, and the tops of the two lifting rods 10 are fixedly connected with an integrally formed positioning plate 11, and the top of the heating furnace 1 is rotatably connected with a threaded column 4, and the top of the threaded column 4 passes through and is threadedly connected to the top of the positioning plate 11, and the inner wall of the heating furnace 1, the outer surface of the energy-saving cone body 5 and the inner wall of the radiation cavity 6 are coated with high-temperature and high-emissivity coatings;

[0046] In this embodiment, by setting the energy-saving cone body 5 including the connecting base 501 and the external reinforcement ring 502, the heating area inside the furnace can be increased, and then the heat transfer efficiency can be improved, so that the radiation cavity 6 can convert the convective heat transfer into radiation heat transfer to achieve the energy-saving effect, the rotating threaded column 4 can drive the lifting rod 10 through the positioning plate 11, the lifting rod 10 can drive multiple adjustment frames 7, and can drive all the energy-saving cone bodies 5, so that the energy-saving cone body 5 can be controlled to adjust the angle, and then the angle can be fine-tuned according to the different furnaces, so as to achieve the best heat transfer efficiency, the high-temperature and high-emissivity coating has a thermal radiation refractive index, which further improves the energy-saving effect, so that the device can achieve a simple installation process, a short construction time, and a low construction difficulty, which is suitable for large-scale promotion.

[0047] Furthermore, the energy-saving cone body 5 includes a connecting base 501 and an external reinforcement ring 502, the connecting base 501 is fixedly connected to the adjusting ball 3, the external reinforcement ring 502 is sleeved on the outside of the connecting base 501, the radiation cavity 6 is opened on the connecting base 501, and the external reinforcement ring 502 is hinged to the adjusting frame 7;

[0048] In this embodiment, the energy-saving cone body 5 includes a connecting base 501 and an external reinforcement ring 502. A radiation cavity 6 is opened on the connecting base 501 to increase the heat transfer area, and the external reinforcement ring 502 can further increase the heat transfer area, so that the heat transfer effect of the device is good, thereby achieving an energy-saving effect.

[0049] Furthermore, the outer reinforcement ring 502 is composed of a plurality of semicircular connecting strips, and the plurality of semicircular connecting strips are fixedly connected to the connecting base 501 in a ring shape with the radiation cavity 6 as the axis;

[0050] In this embodiment, the external reinforcement ring 502 is composed of a plurality of semicircular connecting bars, which are installed on the outside of the connecting base 501, thereby enhancing the heating area and further improving the energy saving performance of the device.

[0051] Furthermore, the support base 2 is fixedly connected to the inner wall of the heating furnace 1 by bonding;

[0052] In this embodiment, by bonding the support base 2 to the inner wall of the heating furnace 1, the installation process of the device is simple and convenient.

[0053] Furthermore, the material of the energy-saving cone body 5 is a refractory material or a stainless steel material; the refractory material is a ceramic material; the ceramic material is a ceramic fiber;

[0054] In this embodiment, by setting the material of the energy-saving cone body 5 to be refractory material, ceramic material, ceramic fiber or stainless steel material, the material of the energy-saving cone body 5 is more common, the production is simpler and more convenient, and the practicability of the device is increased.

[0055] Furthermore, it comprises a square control frame 701 and an articulated rod 702, wherein the square control frame 701 is arranged inside the heating furnace 1, and the articulated rod 702 is articulated between the square control frame 701 and the energy-saving cone body 5;

[0056] In this embodiment, the adjustment frame 7 includes a square control frame 701 and a hinged rod 702. The square control frame 701 cooperates with the hinged rod 702. When the square control frame 701 is lifted up and down, it can drive multiple energy-saving cone bodies 5 to adjust their angles, thereby facilitating the adjustment of the angle of radiation heat transfer of the energy-saving cone bodies 5 and increasing the practicality of the device.

[0057] Furthermore, the thickness of the high temperature and high emissivity coating is 0.02 to 1 mm;

[0058] In this embodiment, by setting the thickness of the high temperature and high emissivity coating to 0.02-1 mm, the thickness of the high temperature and high emissivity coating is very thin, which saves energy and is convenient to apply.

[0059] The first preparation method:

[0060] A: Weigh and prepare the materials according to the weight ratio of each component.

[0061] Silicon carbide 50 parts,

[0062] 170 parts of aluminum oxide,

[0063] 20 parts of iron oxide,

[0064] Zirconium oxide 5 parts,

[0065] 10 parts of rare earth oxides,

[0066] Boron carbide 20 parts,

[0067] 20 parts of bentonite,

[0068] 40 parts of refractory clay,

[0069] 100 parts of silica sol,

[0070] 15 parts of water glass,

[0071] 20 parts of carboxymethyl cellulose,

[0072] Manganese oxide, titanium dioxide and silica sol are used as solvents.

[0073] B: The filler, rare earth oxide and organic solvent are mixed by high-speed stirring or sand film mixing for 1.5 hours, and the mixed ingredients are sintered at a high temperature of 1200°C for 1.5 hours;

[0074] C: Mix the refined material with the solvent in proportion to make a viscous suspension liquid to obtain a high-temperature and high-emissivity coating.

[0075] Generally speaking, when the furnace temperature is above 900℃, heat transfer is mainly by radiation, which is 15 times that of convection and accounts for more than 90%. Most of the high-temperature radiation energy is concentrated in the 1-5μm band. For example, at 1000℃ and 1300℃, 76% and 85% of the radiation energy are concentrated in this band, respectively. The emissivity of general refractory materials in this band is very low (0.2-0.6). High-emissivity coatings have very high emissivity (above 0.9) in the 1-15μm spectrum range.

[0076] The available high-temperature and high-emissivity coating can form a dense coating of 0.3 to 0.5 mm. Small high-temperature kilns can generally achieve energy savings of about 15%, and large kilns can achieve energy savings of 1% to 2%. It increases the infrared emissivity in the kiln, has excellent thermal shock resistance, and the coating does not crack or fall off. It has good resistance to high-temperature oxidation and corrosion, does not pollute the environment, has a long storage period, good bonding properties, and a long service life. It is easy to construct and simple to operate, and can form an energy-saving material.

[0077] Working principle: by installing evenly distributed support seats inside the heating furnace 1, the energy-saving cone body 5 cooperates with the adjustment ball 3 and is hinged on the support seat 2. The energy-saving cone body 5 includes a connecting base 501 and an external reinforcement ring 502, which can increase the heating area inside the furnace, thereby improving the heat transfer efficiency to achieve energy-saving effects. A radiation cavity 6 is provided on the energy-saving cone body 5, so that the radiation cavity 6 can convert convective heat transfer into radiative heat transfer, further improving the energy-saving effect of the device. By rotating the threaded column 4, the positioning plate 11 can drive the lifting rod 10, and the lifting rod 10 can drive multiple adjustment frames 7, so that the adjustment frames 7 can be moved in When moving up and down, the entire energy-saving cone body 5 can be driven, so that the energy-saving cone body 5 can be controlled to adjust the angle, and then the angle can be fine-tuned according to the different furnaces, so as to achieve the best heat transfer efficiency. Finally, the heating furnace 1 and the energy-saving cone body 5 are coated with high-temperature and high-emissivity coatings, which further improve the refractive index of thermal radiation in the furnace, so that the device can achieve better technical effects, simple installation process, high construction time, low construction difficulty, suitable for large-scale promotion, and solve the problems of complex implementation methods, high construction difficulty, long construction time, and inability to construct due to the inability to drill holes in harder refractory materials.

[0078] The above is only a preferred specific implementation of the present invention; however, the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and its improved conception within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An energy-saving cone, applied to a heating furnace (1), characterized in that: The inner wall of the heating furnace (1) is fixedly connected to a uniformly distributed support seat (2); an adjusting ball (3) is installed on the side of the support seat (2) away from the heating furnace (1); an energy-saving cone body (5) is fixedly connected to the side of the adjusting ball (3) away from the support seat (2); a radiation cavity (6) is provided on the side of the energy-saving cone body (5) away from the adjusting ball (3); a plurality of adjusting frames (7) are arranged inside the heating furnace (1); the plurality of adjusting frames (7) are respectively hinged to the plurality of energy-saving cone bodies (5); a connecting rod (8) is fixedly connected between two adjacent adjusting frames (7); the heating furnace (1) Two sealing tubes (9) are installed at the top, and the inner end surface of the sealing tube (9) is slidably connected to a lifting rod (10), and the bottoms of the two lifting rods (10) are respectively fixedly connected to the top of the adjusting frame (7) at the top, and the tops of the two lifting rods (10) are fixedly connected to an integrally formed positioning plate (11), and the top of the heating furnace (1) is rotatably connected to a threaded column (4), and the top of the threaded column (4) passes through and is threadedly connected to the top of the positioning plate (11), and the inner wall of the heating furnace (1), the outer surface of the energy-saving cone body (5) and the inner wall of the radiation cavity (6) are all coated with high-temperature and high-emissivity coatings.

2. The energy-saving cone according to claim 1, characterized in that: The energy-saving cone body (5) comprises a connecting base (501) and an external reinforcement ring (502); the connecting base (501) is fixedly connected to the adjusting ball (3); the external reinforcement ring (502) is sleeved on the outside of the connecting base (501); the radiation cavity (6) is opened on the connecting base (501); and the external reinforcement ring (502) is hinged to the adjusting frame (7).

3. The energy-saving cone according to claim 2, characterized in that: The outer reinforcement ring (502) is composed of a plurality of semicircular connecting strips, and the plurality of semicircular connecting strips are fixedly connected to the connecting base (501) in a ring shape with the radiation cavity (6) as the axis.

4. The energy-saving cone according to claim 1, characterized in that: The support seat (2) is fixedly connected to the inner wall of the heating furnace (1) by bonding.

5. The energy-saving cone according to claim 1, characterized in that: The energy-saving cone main body (5) is made of a refractory material or a stainless steel material; the refractory material is a ceramic material; and the ceramic material is ceramic fiber.

6. The energy-saving cone according to claim 1, characterized in that: The regulating frame (7) comprises a square control frame (701) and an articulated rod (702); the square control frame (701) is arranged inside the heating furnace (1); and the articulated rod (702) is articulated between the square control frame (701) and the energy-saving cone body (5).

7. An energy-saving cone according to any one of claims 1 to 6, characterized in that: The high temperature and high emissivity coating is prepared by the following method: A: Weigh and prepare the materials according to the weight ratio of each component. Silicon carbide 25-250 parts, 150-250 parts of aluminum oxide, 5-75 parts of iron oxide, 1 to 25 parts of zirconium oxide, Manganese oxide 0-25 parts, Rare earth oxides 0~50, Boron carbide 0-60 parts, 0-60 parts of bentonite, Refractory clay 0-160 parts, Titanium dioxide 0-120 parts, 70-300 parts of silica sol, 0-40 parts of water glass, 0-60 parts of carboxymethyl cellulose, The main solvents are silica sol and water glass, and carboxymethyl cellulose is the auxiliary dispersing solvent. B: The filler, rare earth oxide and organic solvent are mixed by high-speed stirring or sand film mixing for 1 to 3 hours, and the mixed ingredients are sintered at a high temperature of 1200 to 1400°C for 1 to 3 hours; C: Mix the refined material with the solvent in proportion to make a viscous suspension liquid to obtain a high-temperature and high-emissivity coating.

8. The energy-saving cone according to claim 7, characterized in that: The thickness of the high-temperature and high-emissivity coating is 0.02-1 mm.

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