High-speed steel production heating furnace with protective structure

Abstract

The utility model discloses a high-speed steel production heating furnace with a protection structure, which comprises a main body mechanism and a protection mechanism, the protection mechanism is fixedly arranged in the main body mechanism, the main body mechanism comprises a heating furnace, a base, rollers and a support frame, the bottom end of the base is fixedly provided with a plurality of rollers, and the support frame is fixedly arranged on the base. Two supporting frames are fixedly installed at the top end of the base, and a heating furnace is fixedly installed at the top ends of the two supporting frames. The high-speed steel heating furnace has the advantages that the production efficiency is improved, the heating is accurate, the quality is guaranteed, and the high-speed steel can be accurately heated through the advanced heating element and the control panel. The high-speed steel is heated within the ideal temperature range, the uniformity and stability of the internal organization structure of the high-speed steel are guaranteed, defective products caused by uneven temperature are reduced, the quality of finished products is improved, and therefore the subsequent machining and reworking time is shortened, and the production efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of heating furnace for high speed steel production with protection structure, concretely is a kind of heating furnace for high speed steel production with protection structure. BACKGROUND

[0002] The heating furnace includes continuous heating furnace and chamber heating furnace etc. The heating furnace for metal heat treatment is also called heat treatment furnace. The furnace for heating steel ingot before primary rolling or making the internal temperature of steel ingot uniform is called soaking pit. In a broad sense, the heating furnace also includes soaking pit and heat treatment furnace. In forging and rolling production, billet is generally heated in oxidizing atmosphere of complete combustion flame. Direct heating of metal by using incomplete combustion reducing flame can achieve the purpose of no oxidation or little oxidation. This heating method is called open fire type or open flame type non-oxidizing heating, which is successfully applied to rotary hearth furnace and chamber heating furnace.

[0003] The existing technology disclosure number CN 216159627 U patent document provides a kind of heating furnace for high speed steel production with protection structure, by setting slide and block make the connection between cover plate and limiting module more convenient, and limiting stable firm strengthens the protection of heating furnace internal furnace mouth, avoids the inside of heating furnace to reduce the quality and pass rate of high speed steel production, prevents being opened in heating process Influence the production efficiency and performance of high speed steel.

[0004] But existing in use, heating furnace for high speed steel production with protection structure exists when using, inconveniently required time is more, connection is unstable, not convenient to open and close, and operation is cumbersome, reduces work efficiency. SUMMARY

[0005] The utility model wants to solve the problem, for the shortcoming in the above prior art, provide a kind of heating furnace for high speed steel production with protection structure, to solve the existing in the above background art when using there is inconveniently required time is more.

[0006] To solve the above problem, the utility model adopts the scheme as follows: a kind of heating furnace for high speed steel production with protection structure, including main body mechanism and protection mechanism, the protection mechanism is fixedly installed in the main body mechanism, the main body mechanism includes heating furnace, base, gyro wheel, support frame, the base bottom end is fixedly installed with several gyro wheels, the base top end is fixedly installed with two support frames, the two support frames top end is fixedly installed with heating furnace;

[0007] The protection mechanism includes shell, firebrick, reinforcing rib, the heating furnace outer surface is fixedly installed with shell, the heating furnace inner surface is fixedly installed with several firebricks, the several firebricks form inner lining, the heating furnace and shell are fixedly installed with several reinforcing ribs.

[0008] Further, the main body mechanism further comprises heating elements and a control panel, a plurality of heating elements are fixedly installed inside the heating furnace, and the control panel is fixedly installed on one side of the heating furnace.

[0009] Further, the main body mechanism further comprises a bottom disc and high-speed steel molds, the bottom disc is fixedly installed at the bottom end inside the heating furnace, and the high-speed steel molds are fixedly installed at the top end of the bottom disc.

[0010] Further, the protection mechanism further comprises a furnace door and a sealing ring, the furnace door is fixedly installed at the front end of the heating furnace, and the sealing ring is fixedly installed on the inner side surface of the furnace door.

[0011] Further, the main body mechanism further comprises a connecting sleeve and a rotating arm, the connecting sleeve is fixedly installed between the furnace door and the heating furnace, the rotating arm is fixedly installed on the surface of the furnace door, and the bolt is fixedly installed between the connecting sleeve and the rotating arm.

[0012] Further, the protection mechanism further comprises a protective fence and a heat insulation layer, the protective fence is fixedly installed around the top end of the base, and the heat insulation layer is fixedly installed on the surface of the shell.

[0013] The technical effects of the utility model are as follows: in terms of improving production efficiency, precise heating guarantees quality the heating furnace can realize precise heating of high-speed steel through advanced heating elements and a control panel. High-speed steel is heated in an ideal temperature range, ensuring the uniformity and stability of its internal organizational structure, reducing defective products caused by uneven temperature, and improving product quality, thereby reducing subsequent processing and rework time and improving production efficiency. The heating furnace can ensure that high-speed steel is uniformly heated in the furnace, avoiding the need to reheat due to local overheating or insufficient heating. This stable and continuous heating mode allows the entire production process to proceed smoothly, greatly improving production efficiency, and is particularly suitable for large-scale high-speed steel production. In terms of ensuring production safety, heat insulation prevents burns the presence of the heat insulation layer can effectively reduce heat loss to the outside of the furnace body, reducing the surface temperature of the furnace body. During operation, the operator will not easily come into contact with the high-temperature surface, thereby avoiding burns. For example, by using rock wool, aluminum silicate fiber and other heat insulation materials, the temperature of the furnace body shell can be controlled within a safe range, so that even if the operator accidentally touches the furnace body, serious injury will not occur. The protective fence and the protective cover isolate the dangerous area of the heating furnace from personnel and the surrounding environment. The protective fence can prevent personnel from entering the dangerous area around the furnace body, and can prevent personnel from coming into contact with high-temperature components, rotating components, etc. in the furnace. For example, during the opening or closing of the furnace door, the protective fence can prevent personnel from being injured due to misoperation or accidental situations, thereby ensuring the safety of personnel during the entire production process.

[0014] In terms of improving energy utilization, the good heat insulation performance of the heat insulation layer not only ensures safety, but also reduces heat loss to the surrounding environment. This means that during the heating process, more heat is used to heat the high-speed steel, rather than being wasted in the surrounding environment. Compared with heating furnaces without insulation structures, energy consumption can be effectively reduced, energy utilization can be improved, and production costs can be reduced. For example, in a long-term production process, a heating furnace with good heat insulation effect can save a large amount of energy, especially in large-scale production, the energy saving effect is more significant. Precise temperature control The energy-saving temperature control system avoids over-heating or under-heating by precisely adjusting the power of the heating element. Over-heating wastes energy, while under-heating may require re-heating. By precisely controlling the temperature, the heating furnace always operates in the best energy consumption state, further improving energy utilization and meeting the production requirements of energy saving and emission reduction. Prolong the service life of the equipment, protect the structure of the furnace body The inner lining of the furnace body is made of refractory material that can withstand high temperature, which protects the outer shell of the furnace body from high temperature erosion and reduces the deformation and damage of the outer shell. The reinforcing ribs enhance the structural strength of the furnace body, making it more stable under long-term high temperature and heavy load conditions. These structural designs are beneficial to prolong the overall service life of the heating furnace and reduce the frequency and cost of equipment replacement. For example, the inner lining made of refractory bricks can effectively resist the damage of high temperature to the furnace body, allowing the furnace body to operate stably for a long time. Reduce environmental impact The sealing structure in the protective structure can prevent a large amount of air and other external factors from entering the furnace, reducing the possibility of damage to the heating elements and inner lining in the furnace due to oxidation and other chemical reactions. At the same time, the heat insulation layer and the protective structure can also reduce the erosion of the external environment to the furnace body, such as humid air and dust, thereby prolonging the service life of the equipment. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a three-dimensional structure schematic diagram of the utility model.

[0016] Figure 2 It is a back structure schematic diagram of the utility model.

[0017] Figure 3 It is a front structure schematic diagram of the utility model.

[0018] Figure 4 It is a structure schematic diagram of the utility model.

[0019] In the figure: 1, main body mechanism; 101, heating furnace; 102, base; 103, roller; 104, support frame; 105, heating element; 106, control panel; 107, bottom disc; 108, high-speed steel mold; 109, connecting sleeve; 110, rotating arm; 111, bolt; 2, protection mechanism; 201, shell; 202, refractory brick; 203, reinforcing rib; 204, furnace door; 205, sealing ring; 206, protective fence; 207, heat insulation layer. DETAILED DESCRIPTION

[0020] The utility model will be made further detailed description in combination with the drawings.

[0021] Embodiment: please refer to Figure 1 Figure 4 A heating furnace with protective structure for high speed steel production, including main body mechanism 1 and protection mechanism 2, protection mechanism 2 is fixedly installed in main body mechanism 1, main body mechanism 1 includes heating furnace 101, base 102, gyro wheel 103, support frame 104, the bottom of base 102 is fixedly installed with several gyro wheels 103, the top of base 102 is fixedly installed with two support frames 104, and the top of two support frames 104 is fixedly installed with heating furnace 101;

[0022] Protection mechanism 2 includes shell 201, firebrick 202, reinforcing rib 203, the outer surface of heating furnace 101 is fixedly installed with shell 201, the inner surface of heating furnace 101 is fixedly installed with several firebricks 202, the several firebricks 202 form inner lining, and several reinforcing ribs 203 are fixedly installed between heating furnace 101 and shell 201.

[0023] Preferably, main body mechanism 1 further includes heating element 105 and control panel 106, several heating elements 105 are fixedly installed in heating furnace 101, and control panel 106 is fixedly installed on one side of heating furnace 101.

[0024] Preferably, main body mechanism 1 further includes chassis 107 and high speed steel die 108, chassis 107 is fixedly installed at the bottom end in heating furnace 101, and several high speed steel dies 108 are fixedly installed at the top end of chassis 107.

[0025] Preferably, protection mechanism 2 further includes furnace door 204 and sealing ring 205, furnace door 204 is fixedly installed at the front end of heating furnace 101, and sealing ring 205 is fixedly installed on the inner side surface of furnace door 204.

[0026] Preferably, main body mechanism 1 further includes connecting sleeve 109 and rotating arm 110, connecting sleeve 109 is fixedly installed between furnace door 204 and heating furnace 101, rotating arm 110 is fixedly installed on the surface of furnace door 204, and bolt 111 is fixedly installed between connecting sleeve 109 and rotating arm 110.

[0027] Preferably, protection mechanism 2 further includes protective fence 206 and heat insulation layer 207, protective fence 206 is fixedly installed around the top end of base 102, and heat insulation layer 207 is fixedly installed on the surface of shell 201.

[0028] ​Working principle: The shell 201, as the external protection structure of the heating furnace 101, is made of high-temperature-resistant and pressure-resistant metal materials, which is used to resist external impact and environmental influence, and protect the internal heating components. The refractory bricks 202 are located inside the furnace body shell 201 and directly contact the high-temperature environment. High-temperature-resistant refractory materials are used, which can withstand high-temperature roasting, reduce heat loss, improve heating efficiency, and prevent high temperature from damaging the furnace body shell 201. The reinforcing ribs 203 are distributed on the furnace body shell 201 to enhance the structural strength and stability of the furnace body, preventing deformation or damage of the furnace body under long-term high-temperature and heavy load conditions. The heating element 105 generates heat in the high-speed steel inside the furnace 101 through the resistance heat generated by the current passing through the resistance wire. The resistance wire is spirally or curvedly distributed in a specific position inside the furnace to ensure that the heat can be evenly distributed to the space inside the furnace. The control panel 106 is used to monitor the temperature inside the furnace in real time and adjust the power of the heating element 105 to maintain the stability of the temperature inside the furnace. The furnace door 204 is used to open and close the furnace body, making it convenient to put in and take out the high-speed steel. The furnace door 204 is made of metal materials with good heat insulation performance and structural strength. The sealing structure is installed between the furnace door 204 and the furnace body to prevent heat loss and air from entering the furnace. The sealing structure uses high-temperature-resistant rubber sealing ring 205 to achieve sealing through extrusion or embedding. Good sealing structure can ensure the uniformity and stability of the temperature inside the furnace, improving the heating effect. The support frame 104 is used to support the weight of the entire heating furnace 101 to ensure the stability of the heating furnace 101. The support frame 104 and the base 102 are welded by steel materials with sufficient strength and stiffness to withstand the vibration and pressure of the heating furnace 101 during operation. The pulley makes it easy to move the heating furnace 101 on the ground, facilitating the installation and maintenance of the equipment. The protective structure, the heat insulation layer 207, is set at the key positions outside or inside the heating furnace 101 to reduce heat loss to the surrounding environment, and also prevents the operator from being scalded by the high-temperature surface. The heat insulation layer 207 uses heat insulation materials such as rock wool and aluminum silicate fiber. The protective fence 206 is set around the heating furnace 101 to prevent people or objects from accidentally entering the working area of the heating furnace 101, causing safety accidents. The material and structure of the protective fence 206 have sufficient strength and protection performance to resist certain impact and collision. Resistance heating When the current passes through the resistance wire, according to Joule's law Q = I²Rt, the resistance wire will generate heat. Here I is the current passing through the resistance wire, R is the resistance of the resistance wire, and t is the time. Because the resistance of the resistance wire is large, a large amount of heat will be generated during the power-on process. These heat is transferred to the high-speed steel inside the furnace in the form of heat radiation and heat conduction.Heat radiation refers to the emission of heat energy by the resistance wire in the form of electromagnetic waves, while heat conduction refers to the transfer of heat from the high-temperature resistance wire to the low-temperature high-speed steel through air or other media. In order to distribute heat evenly, the resistance wire is arranged in a spiral or curved shape at appropriate positions in the furnace. For example, it is arranged around the furnace wall or at the bottom, etc., so that the space inside the furnace forms a relatively uniform temperature field, ensuring that each part of the high-speed steel can be effectively heated. When the electromagnetic induction coil is passed through an alternating current, it will generate an alternating magnetic field in the surrounding space. When the high-speed steel is placed in this magnetic field, according to the principle of electromagnetic induction, an induced electromotive force will be generated inside the high-speed steel, forming an eddy current. Since the high-speed steel itself has resistance, the eddy current will generate Joule heat when flowing inside the high-speed steel, causing the high-speed steel to heat up. The advantage of this heating method is that the heating speed is fast, because the heat is generated directly inside the high-speed steel, and the heating speed and temperature can be accurately controlled by controlling the frequency and intensity of the alternating current. Gas heating Gas burners mix fuel gas such as natural gas, propane, etc. with air in a certain proportion and then burn. The combustion process is a violent oxidation reaction that releases a large amount of heat energy. The high-temperature flame produced by combustion directly contacts or transfers heat to the high-speed steel in the furnace through a heat exchanger. The combustion efficiency and flame distribution of the gas burner are crucial to the heating effect, and a reasonable burner design can ensure that the flame uniformly covers the surface of the high-speed steel, ensuring the uniformity of heating.

Claims

1. A heating furnace for high-speed steel production with a protective structure, comprising a main body (1) and a protective mechanism (2), wherein the protective mechanism (2) is fixedly installed inside the main body (1), characterized in that: The main structure (1) includes a heating furnace (101), a base (102), rollers (103), and a support frame (104). Several rollers (103) are fixedly installed at the bottom of the base (102), and two support frames (104) are fixedly installed at the top of the base (102). The heating furnace (101) is fixedly installed at the top of the two support frames (104). The protective structure (2) includes an outer shell (201), refractory bricks (202), and reinforcing ribs (203). The outer shell (201) is fixedly installed on the outer surface of the heating furnace (101), and several refractory bricks (202) are fixedly installed on the inner surface of the heating furnace (101). The several refractory bricks (202) form an inner lining, and several reinforcing ribs (203) are fixedly installed between the heating furnace (101) and the outer shell (201).

2. The heating furnace for high-speed steel production with a protective structure according to claim 1, characterized in that: The main body (1) also includes heating elements (105) and control panel (106). Several heating elements (105) are fixedly installed inside the heating furnace (101), and control panel (106) is fixedly installed on one side of the heating furnace (101).

3. A heating furnace for high-speed steel production with a protective structure according to claim 2, characterized in that: The main structure (1) also includes a chassis (107) and a high-speed steel mold (108). The chassis (107) is fixedly installed at the bottom of the heating furnace (101), and several high-speed steel molds (108) are fixedly installed at the top of the chassis (107).

4. A heating furnace for high-speed steel production with a protective structure according to claim 3, characterized in that: The protective mechanism (2) also includes a furnace door (204) and a sealing ring (205). The furnace door (204) is fixedly installed at the front end of the heating furnace (101), and the sealing ring (205) is fixedly installed on the inner surface of the furnace door (204).

5. A heating furnace for high-speed steel production with a protective structure according to claim 4, characterized in that: The main body (1) also includes a connecting sleeve (109) and a rotating arm (110). The connecting sleeve (109) is fixedly installed between the furnace door (204) and the heating furnace (101). The rotating arm (110) is fixedly installed on the surface of the furnace door (204). Bolts (111) are fixedly installed between the connecting sleeve (109) and the rotating arm (110).

6. A heating furnace for high-speed steel production with a protective structure according to claim 5, characterized in that: The protective mechanism (2) also includes a protective railing (206) and a heat insulation layer (207). The protective railing (206) is fixedly installed around the top of the base (102), and the heat insulation layer (207) is fixedly installed on the surface of the outer shell (201).

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