Smelting device for mechanical equipment manufacturing

Abstract

The utility model relates to the technical field of mechanical equipment manufacturing, and discloses a smelting device for mechanical equipment manufacturing, which comprises a bottom plate and a smelting furnace, and further comprises a heating component arranged on one side of a hollow interlayer and used for increasing the smelting speed of metal in the smelting furnace, and the detection assembly is arranged at the top of the containing cavity and used for reminding workers to overhaul the smelting furnace in time. High-temperature gas is discharged out of the smelting furnace through the pressure relief assembly, so that the dynamic balance of the pressure in the smelting furnace is maintained according to the pressure change; a sensor is used for replacing manual timing observation through the detection assembly, and when the interior of the smelting furnace is kept in an overpressure state for a long time, a worker can be reminded to reach the position near the smelting furnace for overhauling operation in time, so that the situation that the internal pressure of the smelting furnace is continuously increased and is not perceived by people is avoided, and the anti-explosion performance is improved; and high-temperature gas can be primarily cooled through the gas conveying assembly, and meanwhile heat is recycled and reused.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical equipment manufacturing, in particular to a melting device for mechanical equipment manufacturing. Background Technique

[0002] Mechanical equipment manufacturing refers to the industrial department engaged in the production of various power machinery, lifting and transportation machinery, agricultural machinery and other mechanical equipment. As one of the main indicators of industrialization level, it is an important pillar industry of the country, which can provide technical equipment for the entire national economy. During the manufacturing process, solid metal materials will be heated and melted into liquid by devices such as melting furnaces, and alloy liquids that meet the requirements will be obtained by adjusting the composition and process parameters to meet the material performance requirements of mechanical equipment.

[0003] When the existing melting device for mechanical equipment manufacturing is in use, in order to promote the chemical reaction rate and melting efficiency of the metal inside the melting furnace, it is necessary to keep the inside of the melting furnace in a high-temperature and high-pressure state. However, when the temperature is too high, some impurities will be vaporized, and with the continuous accumulation of high-temperature gas, the internal pressure of the furnace body will continue to increase, and in severe cases, explosion and other situations may occur. Therefore, it is necessary for the staff to regularly observe and understand the internal pressure change of the furnace body for pressure relief adjustment to prevent accidents. However, this method is more cumbersome to operate, has a large labor load on the staff, and the explosion-proof effect is average, which is not conducive to the continuous progress of metal melting work. Content of the Utility Model

[0004] The purpose of the utility model is to provide a melting device for mechanical equipment manufacturing to solve the problems put forward in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: A melting device for mechanical equipment manufacturing, including a bottom plate and a melting furnace. A discharge port is arranged at the bottom of the melting furnace, and a valve is installed inside the discharge port. A sealing top cover adapted to it is installed at the top of the melting furnace. A hollow interlayer is arranged outside the melting furnace. Both sides of the hollow interlayer are fixedly connected with support plates, and the bottom ends of the support plates are connected to the bottom plate. A control panel is fixedly connected to the top of one of the support plates. A controller is installed inside the control panel. The controller is an integrated main board or a PLC controller. It also includes:

[0006] A heating component arranged on one side of the hollow interlayer to improve the metal melting speed inside the melting furnace. A receiving cavity is opened inside the sealing top cover. A limiting groove is opened on the inner wall of the receiving cavity. A limiting block is slidably connected inside the limiting groove. A pressure relief component is arranged at the bottom of the limiting block to prevent the internal pressure of the melting furnace from being too high. The heating component and the pressure relief component are both connected to the wiring terminal of the controller through data lines;

[0007] A detection component is provided at the top of the accommodation cavity to timely remind the staff to repair the smelting furnace. A cooling box is provided on one side of the smelting furnace. The bottom of the cooling box is connected to the bottom plate. An air delivery component is provided inside the cooling box to reduce the temperature of the high-temperature flue gas. The detection component is connected to the wiring terminal of the controller through a data cable.

[0008] Preferably, the heating component includes an electromagnetic induction coil arranged outside the smelting furnace. A plurality of strip plates are symmetrically arranged outside the electromagnetic induction coil. The plurality of strip plates are equidistantly distributed circumferentially along the inner wall of the hollow interlayer. The strip plates are respectively connected to the smelting furnace and the hollow interlayer. The electromagnetic induction coil is connected to the wiring terminal of the controller through a data cable.

[0009] Preferably, a heat insulation layer is provided on the inner wall of the hollow interlayer, and a heat preservation layer is provided between adjacent strip plates. The heat preservation layer is made of rock wool material, and the heat insulation layer is made of ceramic fiber material.

[0010] Preferably, the pressure relief component includes a pressure relief valve arranged at the top of one side of the smelting furnace. A sealing cavity is opened at the bottom of the accommodation cavity. A piston block is slidably connected inside the sealing cavity. The top of the piston block is connected to a limiting block. An exhaust gas channel is opened outside the sealing cavity. The sealing cavity is communicated with the outside through the exhaust gas channel. The pressure relief valve is connected to the wiring terminal of the controller through a data cable.

[0011] Preferably, the detection component includes a pressure sensor fixed to the top of the accommodation cavity. A spring is arranged around the pressure sensor. The spring is respectively connected to the limiting block and the accommodation cavity. A convex block is fixedly connected to the top of the limiting block. An audible and visual alarm is fixedly installed on the top of the control panel. A timer is fixedly installed on one side of the control panel. The timer, the audible and visual alarm, and the pressure sensor are all connected to the wiring terminal of the controller through a data cable.

[0012] Preferably, the air delivery component includes an air collecting hood fixed to the top of the sealing top cover. An air inlet pipe is connected to the top of the air collecting hood. A coiled pipe is arranged inside the cooling box. One end of the air inlet pipe is connected to the air inlet of the coiled pipe. The air outlet of the coiled pipe is connected to an air outlet pipe.

[0013] Preferably, heat exchange liquid ports are provided at the top and bottom of the cooling box. Solenoid valves are installed inside both heat exchange liquid ports. The solenoid valves are connected to the wiring terminal of the controller through a data cable.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] The utility model discharges the high-temperature gas with overpressure inside the smelting furnace to the outside of the smelting furnace through a pressure relief component, thus maintaining the dynamic balance of the internal pressure of the smelting furnace according to the internal pressure change of the smelting furnace and improving the explosion-proof performance; the detection component replaces manual timing observation with a sensor, and when the smelting furnace remains in an overpressure state for a long time, it can timely remind the staff to reach the vicinity of the smelting furnace for maintenance operations, reducing the labor burden of the staff, thus avoiding the situation that the internal pressure of the smelting furnace continues to increase without being noticed, and further improving the explosion-proof performance; the gas transmission component can preliminarily cool the high-temperature gas and recycle the heat at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of a smelting device for mechanical equipment manufacturing provided by the utility model;

[0017] Figure 2 is a schematic rear view structure diagram provided by the utility model;

[0018] Figure 3 is a schematic internal structure diagram of the smelting furnace provided by the utility model;

[0019] Figure 4 is Figure 3 an enlarged structural diagram at position A in

[0020] Figure 5 is a schematic internal structure diagram of the hollow interlayer provided by the utility model;

[0021] Figure 6 is a schematic structural diagram of the gas transmission component provided by the utility model.

[0022] In the figure: 1, bottom plate; 2, smelting furnace; 3, hollow interlayer; 4, support plate; 5, heating component; 51, strip plate; 52, electromagnetic induction coil; 6, heat insulation layer; 7, thermal insulation layer; 8, sealing top cover; 9, heat exchange liquid port; 10, discharge port; 11, accommodation cavity; 12, limit groove; 13, limit block; 14, pressure relief component; 141, sealing cavity; 142, piston block; 143, exhaust gas channel; 144, pressure relief valve; 15, detection component; 151, pressure sensor; 152, spring; 153, convex block; 154, timer; 155, sound and light alarm; 16, control panel; 17, gas transmission component; 171, gas gathering hood; 172, intake pipe; 173, coiled pipe; 174, outlet pipe; 18, cooling box. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts shall fall within the protection scope of the present utility model.

[0024] Please refer to Figures 1-6As shown in the figure, a melting device for mechanical equipment manufacturing includes a bottom plate 1 and a melting furnace 2. A discharge port 10 is provided at the bottom of the melting furnace 2, and a valve is installed inside the discharge port 10. A sealing top cover 8 adapted to it is installed at the top of the melting furnace 2. By setting the sealing top cover 8 and the discharge port 10, it is convenient for the loading and unloading work to be carried out; a hollow interlayer 3 is provided outside the melting furnace 2, and support plates 4 are fixedly connected to both sides of the hollow interlayer 3. The bottom ends of the support plates 4 are connected to the bottom plate 1. A control panel 16 is fixedly connected to the top of one of the support plates 4. A controller is installed inside the control panel 16. The controller is an integrated main board or a PLC controller. By setting the controller, it is convenient to control each electronic device in a coordinated and orderly manner, improving the degree of automation and intelligence and reducing the labor burden of the staff; it also includes: a heating component 5 provided on one side of the hollow interlayer 3 for increasing the melting speed of the metal inside the melting furnace 2. By setting the heating component 5, the metal inside the melting furnace 2 can reach the melting point and become liquid, thus facilitating the melting work; a receiving cavity 11 is opened inside the sealing top cover 8, a limiting groove 12 is opened on the inner wall of the receiving cavity 11, a limiting block 13 is slidably connected inside the limiting groove 12, and a pressure relief component 14 for preventing the pressure inside the melting furnace 2 from being too high is provided at the bottom of the limiting block 13. By setting the pressure relief component 14, it can be adjusted accordingly with the change of the pressure inside the melting furnace 2. When the pressure inside the melting furnace 2 is too high, a part of the high-temperature gas can be discharged to keep the pressure inside the melting furnace 2 balanced. In this way, the occurrence of the explosion accident of the melting furnace 2 is greatly reduced, and the explosion-proof performance is effectively improved; the heating component 5 and the pressure relief component 14 are both connected to the wiring terminal of the controller through data lines; a detection component 15 provided at the top of the receiving cavity 11 for timely reminding the staff to repair the melting furnace 2. By setting the detection component 15, when the melting furnace 2 is in an overpressure state for a long time inside, the staff can be timely reminded to reach the vicinity of the melting furnace 2 for repair operations. In this way, the situation that the pressure inside the melting furnace 2 continues to increase without being noticed is avoided, the service life of the melting furnace 2 is extended, and the explosion-proof performance is further improved; a cooling box 18 is provided on one side of the melting furnace 2. The bottom of the cooling box 18 is connected to the bottom plate 1. An air conveying component 17 capable of reducing the temperature of the high-temperature flue gas is provided inside the cooling box 18. By setting the air conveying component 17, the high-temperature gas discharged from the pressure relief component 14 can be input into the cooling box 18 for preliminary cooling work. In this way, the subsequent burning out of the filtration and purification equipment by the cooled gas is avoided, and the safety is improved; the detection component 15 is connected to the wiring terminal of the controller through a data line.

[0025] The heating component 5 includes an electromagnetic induction coil 52 provided outside the melting furnace 2. A plurality of strip plates 51 are symmetrically provided outside the electromagnetic induction coil 52. The plurality of strip plates 51 are equidistantly distributed along the circumferential direction of the inner wall of the hollow interlayer 3. The strip plates 51 are respectively connected to the melting furnace 2 and the hollow interlayer 3. As Figure 5As shown, a plurality of strip plates 51 support the electromagnetic induction coil 52 and the melting furnace 2 on one hand, and on the other hand, can serve as the reinforcing ribs of the melting furnace 2 and the hollow interlayer 3, enhancing the overall structural strength and improving the explosion-proof performance; the electromagnetic induction coil 52 is connected to the controller terminal through a data cable, as Figure 3 shown, in the actual use process, the electromagnetic induction coil 52 cooperates with the external power distribution mechanism, and the controller controls the on-off of the circuit between the power distribution mechanism and the electromagnetic induction coil 52. The power distribution mechanism controls the magnitude of the current inside the electromagnetic induction coil 52, and then the electromagnetic induction coil 52 heats the metal inside the melting furnace 2, so that the metal inside the melting furnace 2 reaches the melting point and becomes liquid.

[0026] An insulating layer 6 is provided on the inner wall of the hollow interlayer 3, and a heat-insulating layer 7 is provided between adjacent strip plates 51. The heat-insulating layer 7 is made of rock wool material, and the insulating layer 6 is made of ceramic fiber material, as Figure 3 、 Figure 5 shown. By setting the heat-insulating layer 7 and the insulating layer 6, the heat exchange efficiency between the heating component 5 and the external environment of the hollow interlayer 3 can be reduced, and the heat loss is greatly reduced, so that the temperature inside the melting furnace 2 rises rapidly.

[0027] The pressure relief component 14 includes a pressure relief valve 144 provided at the top of one side of the melting furnace 2. A sealing cavity 141 is opened at the bottom of the accommodating cavity 11. A piston block 142 is slidably connected inside the sealing cavity 141. The top of the piston block 142 is connected to the limiting block 13. An exhaust gas passage 143 is opened outside the sealing cavity 141. The sealing cavity 141 is communicated with the outside through the exhaust gas passage 143. The pressure relief valve 144 is connected to the controller terminal through a data cable, as Figure 2 、 Figure 4 shown. When the pressure inside the melting furnace 2 rises slightly, the high-temperature gas will push the piston block 142 to slide deep into the sealing cavity 141. When the pressure inside the melting furnace 2 is too high, the high-temperature gas will push the piston block 142 to reach the top of the sealing cavity 141. At this time, the exhaust gas passage 143 is exposed, and this part of the overpressure high-temperature gas will be discharged to the outside of the melting furnace 2 through the exhaust gas passage 143, so as to maintain the dynamic balance of the pressure inside the melting furnace 2.

[0028] The detection component 15 includes a pressure sensor 151 fixed to the top of the accommodating cavity 11. A spring 152 is provided around the pressure sensor 151. The spring 152 is connected to the limiting block 13 and the accommodating cavity 11 respectively. A convex block 153 is fixedly connected to the top of the limiting block 13. An audible and visual alarm 155 is fixedly installed on the top of the control panel 16. A timer 154 is fixedly installed on one side of the control panel 16. The timer 154, the audible and visual alarm 155, and the pressure sensor 151 are all connected to the controller terminal through data cables, as Figure 2 、 Figure 4As shown, when the high-temperature gas inside the smelting furnace 2 overcomes the elastic potential energy of the spring 152 and drives the bump 153 into contact with the pressure sensor 151, the controller will start the timer 154 to record the overpressure duration. When the overpressure duration exceeds the preset threshold of the timer 154, the timer 154 will send a signal to the controller, and the controller will then start the audible and visual alarm 155 to remind the staff to arrive near the smelting furnace 2 in time for maintenance operations. Then, in cooperation with the pressure relief valve 144, the overpressure gas is urgently discharged, thus avoiding the situation where the pressure inside the smelting furnace 2 continues to increase without being noticed, and further improving the explosion-proof performance.

[0029] The gas transmission component 17 includes a gas collecting hood 171 fixed to the top of the sealed top cover 8. An air inlet pipe 172 is connected to the top of the gas collecting hood 171. A coiled pipe 173 is arranged inside the cooling box 18. One end of the air inlet pipe 172 is connected to the air inlet of the coiled pipe 173, and the air outlet of the coiled pipe 173 is connected to an air outlet pipe 174, as Figure 2 、 Figure 6 shown. The high-temperature gas discharged from the exhaust gas passage 143 will sequentially pass through the gas collecting hood 171 and the air inlet pipe 172 and enter the inside of the coiled pipe 173. By using the coiled pipe 173, the residence time of the high-temperature gas inside the cooling box 18 is extended, and the contact area between the high-temperature gas and the cooling medium inside the cooling box 18 is increased. In this way, the preliminary cooling of the high-temperature gas is realized, the heat exchange efficiency is improved, and the subsequent burning of the filtering and purification equipment by the cooled gas is avoided.

[0030] Heat exchange liquid ports 9 are provided at both the top and bottom of the cooling box 18. Solenoid valves are installed inside both heat exchange liquid ports 9, and the solenoid valves are connected to the wiring terminals of the controller through data lines, as Figure 2 shown. By setting the heat exchange liquid ports 9, it is convenient for the input of the external cooling medium and at the same time convenient for the discharge of the cooling medium after absorbing heat. In this way, the heat can be recovered, the heat utilization rate is improved, and the resource consumption is reduced.

[0031] Working principle: First, the staff heats the metal inside the smelting furnace 2 through the heating component 5 to make the metal inside the smelting furnace 2 reach the melting point and become liquid. During this process, the overpressure high-temperature gas inside the smelting furnace 2 is discharged to the outside of the smelting furnace 2 through the pressure relief component 14, so as to maintain the dynamic balance of the internal pressure of the smelting furnace 2 according to the change of the internal pressure of the smelting furnace 2, improving the explosion-proof performance. At the same time, through the detection component 15, sensors are used to replace manual timing observation. When the smelting furnace 2 remains in an overpressure state for a long time, the staff can be reminded to arrive near the smelting furnace 2 in time for maintenance operations, reducing the labor burden of the staff. In this way, the situation where the pressure inside the smelting furnace 2 continues to increase without being noticed is avoided, and the explosion-proof performance is further improved. Then, through the gas transmission component 17, the high-temperature gas can be preliminarily cooled, and at the same time, the heat is recovered and reused, so as to avoid the subsequent burning of the filtering and purification equipment by the cooled gas.

[0032] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variation thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the said element.

[0033] Although embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A melting device for mechanical equipment manufacturing, comprising a bottom plate (1) and a melting furnace (2), characterized in that, The bottom of the smelting furnace (2) is provided with a discharge port (10), a valve is installed inside the discharge port (10), a sealing top cover (8) adapted thereto is installed at the top of the smelting furnace (2), a hollow interlayer (3) is provided outside the smelting furnace (2), both sides of the hollow interlayer (3) are fixedly connected with support plates (4), the bottom ends of the support plates (4) are connected to the bottom plate (1), and a control panel (16) is fixedly connected to the top of one of the support plates (4). A controller is installed inside the control panel (16), and the controller is an integrated main board or a PLC controller. It further includes: A heating component (5) arranged on one side of the hollow interlayer (3) for increasing the metal melting speed inside the smelting furnace (2). An accommodation cavity (11) is formed inside the sealing top cover (8), a limiting groove (12) is formed on the inner wall of the accommodation cavity (11), a limiting block (13) is slidably connected inside the limiting groove (12), and a pressure relief component (14) for preventing the pressure inside the smelting furnace (2) from being too high is arranged at the bottom of the limiting block (13). The heating component (5) and the pressure relief component (14) are both connected to the wiring terminal of the controller through data lines; A detection component (15) arranged at the top of the accommodation cavity (11) for timely reminding the staff to repair the smelting furnace (2). A cooling box (18) is arranged on one side of the smelting furnace (2), the bottom of the cooling box (18) is connected to the bottom plate (1), an air conveying component (17) capable of reducing the temperature of the high-temperature flue gas is arranged inside the cooling box (18), and the detection component (15) is connected to the wiring terminal of the controller through a data line.

2. The melting device for manufacturing mechanical equipment according to claim 1, wherein: The heating component (5) includes an electromagnetic induction coil (52) arranged outside the smelting furnace (2). A plurality of strip-shaped plates (51) are symmetrically arranged outside the electromagnetic induction coil (52). The plurality of strip-shaped plates (51) are equidistantly distributed along the circumferential direction of the inner wall of the hollow interlayer (3). The strip-shaped plates (51) are respectively connected to the smelting furnace (2) and the hollow interlayer (3). The electromagnetic induction coil (52) is connected to the wiring terminal of the controller through a data line.

3. A melting device for manufacturing mechanical equipment according to claim 2, characterized in that: A heat insulation layer (6) is arranged on the inner wall of the hollow interlayer (3), and a heat preservation layer (7) is arranged between adjacent strip-shaped plates (51). The heat preservation layer (7) is made of rock wool material, and the heat insulation layer (6) is made of ceramic fiber material.

4. A melting device for manufacturing mechanical equipment according to claim 1, characterized in that: The pressure relief component (14) includes a pressure relief valve (144) arranged at the top of one side of the smelting furnace (2). A sealing cavity (141) is formed at the bottom of the accommodation cavity (11). A piston block (142) is slidably connected inside the sealing cavity (141). The top of the piston block (142) is connected to the limiting block (13). An exhaust gas channel (143) is formed outside the sealing cavity (141). The sealing cavity (141) is communicated with the outside through the exhaust gas channel (143). The pressure relief valve (144) is connected to the wiring terminal of the controller through a data line.

5. A melting device for manufacturing mechanical equipment according to claim 1, characterized in that: The detection component (15) includes a pressure sensor (151) fixed to the top of the accommodation cavity (11). A spring (152) is provided around the pressure sensor (151). The spring (152) is connected to the limit block (13) and the accommodation cavity (11) respectively. A convex block (153) is fixedly connected to the top of the limit block (13). An audible and visual alarm (155) is fixedly installed on the top of the control panel (16). A timer (154) is fixedly installed on one side of the control panel (16). The timer (154), the audible and visual alarm (155), and the pressure sensor (151) are all connected to the controller terminal through data lines.

6. A smelting device for manufacturing mechanical equipment according to claim 1, characterized in that: The gas transmission component (17) includes a gas gathering hood (171) fixed to the top of the sealing top cover (8). An air inlet pipe (172) is connected to the top of the gas gathering hood (171). A coiled pipe (173) is provided inside the cooling box (18). One end of the air inlet pipe (172) is connected to the air inlet of the coiled pipe (173). The air outlet of the coiled pipe (173) is connected to an air outlet pipe (174).

7. The melting device for manufacturing mechanical equipment according to claim 6, characterized in that: Heat exchange liquid ports (9) are provided at both the top and the bottom of the cooling box (18). Solenoid valves are installed inside both of the heat exchange liquid ports (9). The solenoid valves are connected to the controller terminal through data lines.

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