Pneumatic-electric combined heating continuous forging heating furnace

Abstract

A gas-electricity combined heating continuous forging heating furnace relates to the field of metal forging processing and comprises a heating furnace, a partition plate cover is fixedly mounted on the rear side wall of an inner cavity of the heating furnace, a mesh plate is mounted between the left side wall and the right side wall of the inner cavity of the partition plate cover, and a natural gas nozzle opening is fixedly mounted on the left side end face of the heating furnace. A gas heating pipe is fixedly installed at an output port of the natural gas burner port, the gas heating pipe penetrates through the side face of the partition plate cover to abut against the upper end face of the mesh plate, a top plate is fixedly installed on the upper end face of the heating furnace, and fixing plates are installed on the top plate at equal intervals. According to the utility model, heat generated by gas heating is taken as a main part, heat generated by electric heating is taken as an auxiliary part, and gas and electric heating are combined bidirectionally, so that the heating uniformity and the temperature control precision are ensured, meanwhile, the heat can be circularly heated again, the utilization rate of the heat is greatly improved, and the heating energy is effectively saved.

Description

Technical Field

[0001] The utility model relates to the field of metal forging processing, in particular to a continuous forging heating furnace with gas-electric combined heating. Background Art

[0002] A continuous forging heating furnace is an industrial equipment used for heating metal before forging. Its characteristic is that it can continuously heat the metal billet to the required forging temperature. However, our traditional heating furnaces can only be heated by electricity or natural gas. Using electricity will result in insufficient capacity of the equipment transformer. Natural gas is expensive in some places, and it is not cost-effective to use natural gas for a long time. Using electricity or gas alone has different disadvantages. In addition, during the electric heating process, heat energy is easily lost, resulting in a large waste of energy.

[0003] Therefore, under such circumstances, we improved the furnace type and used both natural gas and electricity as energy sources. Utility Model Content

[0004] The purpose of the utility model is to provide a continuous forging heating furnace with gas-electric combined heating, which can be heated by electricity or natural gas, and combined with each other to solve the problems raised in the above background technology.

[0005] The utility model solves the technical problem by adopting the following technical solutions:

[0006] A continuous forging heating furnace with combined gas and electric heating comprises a heating furnace, a partition cover is fixedly mounted on the rear side wall of the inner cavity of the heating furnace, a mesh plate is mounted between the left and right side walls of the inner cavity of the partition cover, a natural gas burner port is fixedly mounted on the left end face of the heating furnace, a gas heating pipe is fixedly mounted on the output port of the natural gas burner port, the gas heating pipe passes through the side face of the partition cover and abuts against the upper end face of the mesh plate, a top plate is fixedly mounted on the upper end face of the heating furnace, fixed plates are equidistantly mounted on the top plate, and electric heating pipes are equidistantly mounted on each of the fixed plates, and the electric heating pipes are located between the partition cover and the inner cavity side wall of the heating furnace.

[0007] Preferably, a through hole is provided on the top of the partition cover, a motor is fixedly mounted on the upper end surface of the top plate, an exhaust fan is fixedly mounted on the output shaft of the motor, and a fan cover is provided on the outside, the fan cover is rotatably mounted on the output shaft of the motor, the exhaust fan is wrapped in the fan cover, and the open bottom of the fan cover is opposite to the through hole on the top of the partition cover.

[0008] Preferably, the fan cover is provided with exhaust cavities equidistantly distributed on the side, and each exhaust cavity is arranged in an arc shape.

[0009] Preferably, the electric heating tube is arranged in a "U" shape.

[0010] Preferably, a groove is provided on each of the fixing plates on the top plate, and each of the fixing plates is embedded in the corresponding groove.

[0011] Preferably, insulation layers are installed on the left and right side walls of the inner cavity of the heating furnace respectively.

[0012] The advantages and positive effects of the utility model are:

[0013] This utility model mainly uses the heat generated by gas heating and the heat generated by electric heating as a supplement, so that the temperature in the heating furnace can be quickly raised. Since it is difficult to achieve precise temperature control by gas heating, auxiliary heating can be performed by controlling the heating temperature of electric heating, thereby achieving precise temperature control. The two-way combination of gas and electric heating ensures the uniformity of heating and the accuracy of temperature control. At the same time, the heat can be recirculated for heating, which greatly improves the utilization rate of heat and effectively saves heating energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0015] Figure 1 This is a schematic diagram of the overall structure of a continuous forging heating furnace with gas-electric combined heating according to the present invention;

[0016] Figure 2 This is a schematic diagram of the partial structure of the interior of a continuous forging heating furnace with gas-electric combined heating according to the present invention;

[0017] Figure 3 This is a schematic diagram of the internal structure of a continuous forging heating furnace with gas-electric combined heating according to the present invention, viewed from above;

[0018] Figure 4 This is a schematic diagram of the partial structure inside a continuous forging heating furnace with gas-electric combined heating according to the present invention.

[0019] The symbols in the accompanying drawings are described as follows: heating furnace 10; natural gas burner port 11; insulation layer 12; furnace door panel 13; top plate 14; fixing plate 15; electric heating pipe 16; motor 17; fan cover 18; exhaust chamber 19; partition cover 20; mesh plate 21; gas heating pipe 22. DETAILED DESCRIPTION

[0020] The present invention will now be further described in detail with reference to the accompanying drawings. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative work are within the scope of protection of the present invention. These drawings are all simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic way, and therefore only show the structures related to the present invention.

[0021] To facilitate understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0022] The following combination Figure 1-4 The utility model is described in detail. For the convenience of description, the directions mentioned below are defined as follows: the up, down, left, right, front and back directions mentioned below are the same as Figure 1 The front, back, left, right, up and down directions of the view are consistent. Figure 1 The directions shown are consistent with the front, back, left, right, up and down directions of the device of the present invention when viewed from the front.

[0023] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connected," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; they can refer to mechanical connection, direct connection, or indirect connection through an intermediate medium; they can refer to internal communication between at least two components or interaction between at least two components, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this invention can be understood according to specific circumstances.

[0024] The following is a further description of the embodiments of the present invention with reference to the accompanying drawings:

[0025] See also Figure 1-4The utility model provides an embodiment of a continuous forging heating furnace with combined gas and electric heating, comprising a heating furnace 10, a partition cover 20 is installed in the furnace chamber of the heating furnace 10 near the furnace door plate 13, the rear end of the partition cover 20 is fixed to the rear side wall of the inner cavity of the heating furnace 10, and a thermal insulation layer 12 is installed on the left and right side walls of the inner cavity of the heating furnace 10, so that a cavity is formed between the partition cover 20 and the thermal insulation layer 12, and a mesh plate 21 is installed between the left and right side walls of the inner cavity of the partition cover 20, the mesh plate 21 divides the inner cavity space of the partition cover 20 into two upper and lower areas, wherein the upper area is the heating area, and the bottom is the heated furnace area, and a natural gas burner is fixedly installed on the left end face of the heating furnace 10 Port 11, the output port of the natural gas burner port 11 is fixedly installed with a gas heating pipe 22, the gas heating pipe 22 penetrates into the heating zone, and abuts against the upper end surface of the mesh plate 21, the gas heating pipe 22 serves as a heating part for gas heating, and at the same time, a top plate 14 is fixedly installed on the upper end surface of the heating furnace 10, and fixed plates 15 are equidistantly installed on the top plate 14, and grooves are respectively opened on each of the fixed plates 15 on the top plate 14, and each of the fixed plates 15 is embedded in the corresponding groove, and an electric heating pipe 16 is equidistantly installed on each of the fixed plates 15, and the electric heating pipe 16 is just located in the cavity formed between the partition cover 20 and the insulation layer 12, wherein the electric heating pipe 16 is an electric heating part;

[0026] It is worth mentioning that in this embodiment, a through hole is opened on the top of the partition cover 20, and a motor 17 is fixedly mounted on the upper end surface of the top plate 14. An exhaust fan is fixedly mounted on the output shaft of the motor 17, and a fan cover 18 is provided on the outside. The fan cover 18 is rotatably sleeved on the output shaft of the motor 17, and the exhaust fan is wrapped in the fan cover 18. The open bottom of the fan cover 18 is opposite to the through hole on the top of the partition cover 20, and the fan cover 18 is equidistantly provided with exhaust cavities 19 on the side, and each of the exhaust cavities 19 is arranged in an arc shape;

[0027] The motor 17 is started at the top to drive the exhaust fan, and the heat generated by the gas heating pipe 22 in the upper heating area of ​​the inner cavity of the partition cover 20 is sucked out through the through hole at the top, and diffused and discharged outward from the exhaust cavity 19 on the side, and then passes through the electric heating area of ​​the electric heating pipe 16 along the outer wall of the partition cover 20, so that the heat of the gas heating and the heat of the electric heating are mixed and enter from the side bottom of the partition cover 20 into the heated furnace area at the bottom of the inner cavity of the partition cover 20, thereby heating the forging raw materials in the furnace. At the same time, the mixed heat can also be evenly passed through the mesh plate 21, sucked out again, and mixed into the heat cycle through the through hole at the top, thereby forming circulating heating, which greatly improves the utilization rate of heat and effectively saves heating energy.

[0028] Therefore, the heat generated by gas heating is mainly used, and the heat generated by electric heating is supplementary, so that the temperature in the heating furnace can be quickly raised. Since it is difficult to achieve precise temperature control by gas heating, auxiliary heating can be performed by controlling the electric heating tube 16 to achieve precise temperature control. The two-way combination of gas and electric heating ensures the uniformity of heating and the accuracy of temperature control.

[0029] It should be noted that, in order to improve the efficiency of electric heating, the electric heating tube 16 can be set to be "U"-shaped.

[0030] During specific implementation, according to the requirements of the heating temperature, when it is necessary to quickly reach the heating temperature, the electric heating tube 16 can be started first for electric heating and heating. When the temperature does not need to be reached quickly, the gas heating of the gas heating tube 22 can be started first, and then the motor 17 on the top is started to drive the exhaust fan to rotate, so as to absorb the heat generated by the heating of the gas heating tube 22, absorb it through the through-hole on the top, and diffuse it outward from the exhaust cavity 19 on the side, and then pass through the electric heating area of ​​the electric heating tube 16 along the outer wall of the partition cover 20, so that the heat from the gas heating and the heat from the electric heating are mixed and enter from the side bottom of the partition cover 20 into the heated furnace area at the bottom of the inner cavity of the partition cover 20, thereby heating the forging raw materials in the furnace. At the same time, the mixed heat can also be evenly passed through the mesh plate 21, be absorbed again, and mixed into the heat cycle through the through-hole on the top, thereby forming a circulating heating.

[0031] It should be emphasized that the embodiments described in the present invention are illustrative rather than restrictive. Therefore, the present invention is not limited to the embodiments described in the specific implementation methods. Any other implementation methods derived by those skilled in the art based on the technical solution of the present invention also fall within the scope of protection of the present invention.

Claims

1. A continuous forging heating furnace with combined gas and electric heating, comprising a heating furnace (10), characterized in that: A partition cover (20) is fixedly mounted on the rear side wall of the inner cavity of the heating furnace (10), a mesh plate (21) is mounted between the left and right side walls of the inner cavity of the partition cover (20), a natural gas burner port (11) is fixedly mounted on the left end face of the heating furnace (10), a gas heating pipe (22) is fixedly mounted on the output port of the natural gas burner port (11), the gas heating pipe (22) passes through the side face of the partition cover (20) and abuts against the upper end face of the mesh plate (21), a top plate (14) is fixedly mounted on the upper end face of the heating furnace (10), fixed plates (15) are evenly distributed on the top plate (14), and an electric heating pipe (16) is evenly distributed on each of the fixed plates (15), and the electric heating pipe (16) is located between the partition cover (20) and the inner cavity side wall of the heating furnace (10).

2. The continuous forging heating furnace with gas-electric combined heating according to claim 1, characterized in that: A through hole is provided on the top of the partition cover (20), a motor (17) is fixedly mounted on the upper end surface of the top plate (14), an exhaust fan is fixedly mounted on the output shaft of the motor (17), and a fan cover (18) is provided on the outside, the fan cover (18) is rotatably mounted on the output shaft of the motor (17), the exhaust fan is wrapped in the fan cover (18), and the open bottom of the fan cover (18) is opposite to the through hole on the top of the partition cover (20).

3. The continuous forging heating furnace with gas-electric combined heating according to claim 2, characterized in that: The fan cover (18) is provided with exhaust cavities (19) at equal intervals on the side, and each exhaust cavity (19) is arranged in an arc shape.

4. The continuous forging heating furnace with gas-electric combined heating according to claim 3, characterized in that: The electric heating tube (16) is arranged in a "U" shape.

5. The continuous forging heating furnace with gas-electric combined heating according to claim 4, characterized in that: A groove is respectively provided on the top plate (14) at each of the fixing plates (15), and each of the fixing plates (15) is embedded in the corresponding groove.

6. The continuous forging heating furnace with combined gas and electricity heating according to claim 5, characterized in that: Insulation layers (12) are respectively installed on the left and right side walls of the inner cavity of the heating furnace (10).

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