Auxiliary heating device of sintering furnace

Abstract

The utility model is suitable for the technical field of auxiliary heating devices, and provides a sintering furnace auxiliary heating device which comprises a main body assembly, a recovery assembly installed on one side of the main body assembly, an adjusting assembly installed in the main body assembly and three heating assemblies connected to the top of the adjusting assembly. The device solves the problems that an existing auxiliary heating device is influenced by the size of a product, the heating range is dispersed, the heating time is prolonged, and waste gas located at the dead angle position of a temperature field in a furnace body is condensed and adhered to the inner wall of the furnace body, the three-jaw chuck drives the three heating assemblies to move, the heating range of the product in the horizontal direction is adjusted, and the heating efficiency is improved. The first resistance heater and the second resistance heater are matched to enlarge or reduce the heating range in the height direction, when the height range is reduced, the purpose of heating the periphery of the product is achieved, the product heating time is shortened, and when the height range is increased, the situation that waste gas generated in the sintering process of the product is cooled is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of auxiliary heating devices, and more specifically, to an auxiliary heating device for a sintering furnace. Background Art

[0002] There are impurities in the raw materials that are sintered at high temperature in the sintering furnace. Through high-temperature sintering, the impurities in the raw materials will be separated and form waste gas that accumulates in the sintering furnace. At this time, an auxiliary heating device is required to continuously heat the waste gas in the furnace body to avoid cooling and adhesion of the waste gas.

[0003] The existing heating device is to install multiple heaters in the furnace body, and heat the product by multiple heaters at the same time to sinter the product, and assist in heating the waste gas generated by the sintering of the product in the furnace body. Since the space inside the furnace body is large, when the product volume is small, the heating range is more dispersed, which leads to an increase in heating time. At the same time, the product will generate waste gas during heating and sintering. When the waste gas fills the furnace body, the temperature at the dead corner of the temperature field in the furnace body will be different from the temperature at the center, resulting in a decrease in the waste gas temperature at the dead corner, which in turn causes some impurities in the waste gas to condense and adhere to the furnace body, making it difficult to clean. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model aims to provide an auxiliary heating device for a sintering furnace.

[0005] To achieve the above objectives, the utility model provides the following technical solutions: an auxiliary heating device for a sintering furnace, comprising a main body component, a recovery component installed on one side of the main body component, an adjustment component installed inside the main body component, and three groups of heating components connected to the top of the adjustment component.

[0006] The main component includes a frame and a furnace body vertically installed inside the frame, and the recovery component is arranged on the outer wall of the furnace body and is connected to the furnace body.

[0007] The recovery component includes two connecting plates symmetrically arranged on the outer side wall of the furnace body, and two shunt pipes are penetrated on the two connecting plates. One end of the shunt pipe is connected to the furnace body, and one end of one of the shunt pipes away from the furnace body is connected to a connecting pipe, and the connecting pipe is connected to the other three shunt pipes in turn.

[0008] The adjustment component includes a fixed plate installed on the outer wall of the furnace body and a three-jaw chuck installed on the bottom of the fixed plate. The bottom of the three-jaw chuck is slidably connected with three slide seats. The three groups of heating components are respectively arranged corresponding to the three slide seats, and the heating components are installed at the bottom of the corresponding slide seats.

[0009] The three groups of heating components all include a first slot rod, which is vertically installed at the bottom of the corresponding slide seat, and the inside of the first slot rod is vertically connected to a guide rod, and the outer wall of the guide rod and the inside of the first slot rod are slidably connected with four sliders, each of which is installed with a first resistance heater near the central axis direction of the fixed plate, and each of the first slot rods is installed with a second resistance heater on one side of the fixed plate and below the guide rod.

[0010] The utility model is further configured as follows: one end of the connecting pipe away from the shunt pipe is connected to an exhaust pipe, a valve is installed on the outer side wall of the exhaust pipe, the side walls of the two connecting plates are connected to brackets, and the connecting pipe is clamped on the brackets.

[0011] The utility model is further configured as follows: the four sliders are arranged downward in sequence K1, K2, K3 and K4, wherein a first hinge rod is hinged on the side wall of each slider, and the side walls of the sliders arranged in the order of K2, K3 and K4 and the lower position of the side walls of the first slot rod are hinged with a second hinge rod, the guide rod on each slider is hinged to the second hinge rod adjacent thereto, a limiting column is connected to the side wall of each of the second hinge rods, an upper guide column is connected to the upper side of the first slot rod away from the first resistance heater, the outer side wall of the upper guide column is sleeved and slidably connected with a second slot rod, the second slot rod is vertically arranged, and each of the limiting columns is inserted into the inside of the second slot rod.

[0012] The utility model is further configured as follows: a micro cylinder is installed on the side of the first slot rod away from the second resistance heater, the piston rod of the micro cylinder extends in a direction away from the corresponding first slot rod, and the piston rod of the micro cylinder is connected to a push plate, and the side wall of the push plate is connected to the side wall of the corresponding second slot rod.

[0013] The utility model is further configured as follows: a lower guide column is horizontally connected to the side of the first slot rod away from the first resistance heater and located at the bottom end of the second slot rod, and the bottom end of the second slot rod and the top end of the push plate are sleeved and slidably connected to the outer wall of the lower guide column.

[0014] By adopting the above technical solution, the three-claw chuck drives the three groups of heating components to move, thereby adjusting the distance between the three groups of heating components, and then changing the position of the three groups of heating components in the furnace body, which not only adapts to the sintering of products of different sizes, but also avoids the adhesion of exhaust gas in the furnace body due to cooling by increasing or reducing the heating range. The push plate is pushed to slide on the outer wall of the lower guide column by a micro cylinder, so that the limit column and the hinge point of the first hinge rod and the second hinge rod move synchronously with the second slot rod, and the second slot rod moves away from the first slot rod. The four sliders are pulled by the first hinge rod and the second hinge rod and approach each other at equal distances, so that the heating range of the first resistance heater is reduced downward, thereby achieving the purpose of heating the surrounding of the product and shortening the heating time of the product.

[0015] The product will generate waste gas during the continuous heating and sintering process. This waste gas is mainly generated by impurities in the product raw materials. After the product is sintered, the first resistance heater is separated upward at equal distances to increase the heating range. The first resistance heater and the second resistance heater cooperate to assist in heating the exhaust gas generated in the furnace body to avoid cooling of the waste gas generated by the product during the sintering process.

[0016] The utility model is further configured as follows: two groups of hinged seats are symmetrically installed on the top of the frame, and furnace doors for closing the top opening of the furnace body are hinged on the two groups of hinged seats.

[0017] By adopting the above technical solution, when the two furnace doors are swung to a horizontal state through the corresponding hinge seats, the two furnace doors are spliced ​​together and the opening on the top of the furnace body is closed at the same time, so that the inner cavity of the furnace body forms a closed space, thereby achieving the purpose of product sintering and exhaust gas heating.

[0018] In summary, the present application includes at least one of the following beneficial technical effects:

[0019] By setting the adjustment component, the three-jaw chuck drives the three groups of heating components to move, thereby adjusting the distance between the three groups of heating components, and then changing the position of the three groups of heating components in the furnace body. It not only adapts to the sintering of products of different sizes, but also avoids the adhesion of exhaust gas in the furnace body due to cooling by increasing or reducing the heating range.

[0020] By setting a first slot rod and a slider, a micro-cylinder is used to push the push plate to slide on the outer wall of the lower guide column, so that the limit column and the hinge point of the first hinge rod and the second hinge rod move synchronously with the second slot rod, and the four sliders are pulled or pushed by the first hinge rod and the second hinge rod to move equidistantly closer to or farther from each other, so that the first resistance heater and the second resistance heater cooperate to expand or reduce the heating range in the height direction. When the height range is reduced, the purpose of heating the surrounding area of ​​the product is achieved and the heating time of the product is shortened. When the height range is increased, the exhaust gas generated during the sintering process of the product is prevented from cooling down. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 The utility model is a schematic diagram of the overall structure of an auxiliary heating device for a sintering furnace.

[0022] Figure 2 It is a schematic diagram of the connection structure of the regulating component and the heating component in the utility model.

[0023] Figure 3 for Figure 2 Schematic diagram of the enlarged structure of area A in the middle.

[0024] Figure 4 It is a schematic diagram of the local structure of the heating component in the utility model.

[0025] Description of reference numerals: 1, main assembly; 11, frame; 12, furnace body; 13, hinge seat; 14, furnace door;

[0026] 2. Recovery assembly; 21. Diverter pipe; 22. Connecting plate; 23. Connecting pipe; 24. Bracket; 25. Exhaust pipe; 26. Valve;

[0027] 3. Adjustment assembly; 31. Fixed plate; 32. Three-jaw chuck; 33. Sliding seat;

[0028] 4. Heating assembly; 41. First slot rod; 42. Guide rod; 43. Slider; 44. Upper guide column; 45. Second slot rod; 46. First hinge rod; 47. Limit column; 48. Second hinge rod; 49. First resistance heater; 401. Second resistance heater; 402. Lower guide column; 403. Micro cylinder; 404. Push plate. DETAILED DESCRIPTION

[0029] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0030] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0031] See also Figure 1-4 , the utility model provides the following technical solutions:

[0032] For example, see Figure 1A sintering furnace auxiliary heating device includes a main body component 1, which includes a frame 11 and a furnace body 12 vertically installed inside the frame 11. Two sets of hinged seats 13 are symmetrically installed on the top of the frame 11. The two sets of hinged seats 13 are hinged with furnace doors 14 for closing the top opening of the furnace body 12. When the two furnace doors 14 are swung to a horizontal state through the corresponding hinged seats 13, the two furnace doors 14 are spliced ​​with each other and the opening at the top of the furnace body 12 is closed at the same time, so that the inner cavity of the furnace body 12 forms a closed space.

[0033] See also Figure 2 and 3 Since the space inside the furnace body 12 is large, when the product volume is small, the heating time will be extended, and waste gas will be generated when the product is heated and sintered. This waste gas is mainly generated by impurities in the product raw materials. When the waste gas fills the furnace body 12, once the waste gas cools down, some impurities in the waste gas will adhere to the furnace body 12 and are difficult to clean. Therefore, an adjustment component 3 is installed inside the furnace body 12. Three groups of heating components 4 are connected to the top of the adjustment component 3. The adjustment component 3 is used to adjust the position of the three groups of heating components 4 in the furnace body 12. The three groups of heating components 4 are adjusted in the furnace body 12 for heating height adjustment, so as to meet the needs of product sintering and waste gas heating. The specific structure of the adjustment component 3 is as follows:

[0034] See also Figure 2 The adjusting assembly 3 includes a fixed plate 31 installed on the outer wall of the furnace body 12 and a three-claw chuck 32 installed on the bottom of the fixed plate 31. The bottom of the three-claw chuck 32 is slidably connected with three slide seats 33. The three-claw chuck 32 is composed of a chuck body, a movable claw and a claw driving mechanism. The claw driving mechanism drives the movable claw to slide on the chuck body to adjust the position, and the slide seat 33 is connected to the movable claw on the three-claw chuck 32. When the movable claw moves, it will drive the slide seat 33 to move synchronously. Since the three groups of heating components 4 are respectively arranged corresponding to the three slide seats 33, and the heating components 4 are installed at the bottom of the corresponding slide seats 33, the three slide seats 33 respectively drive the corresponding heating components 4 to move, thereby adjusting the spacing between the three groups of heating components 4, and then changing the positions of the three groups of heating components 4 in the furnace body 12, which not only adapts to the sintering of products of different sizes, but also avoids the adhesion caused by cooling of exhaust gas in the furnace body 12 by increasing or reducing the heating range.

[0035] See also Figure 2-Figure 4The three groups of heating components 4 all include a first slot rod 41, which is vertically installed at the bottom of the corresponding slide seat 33. The first slot rod 41 is vertically connected to a guide rod 42 inside. Four sliders 43 are slidably connected to the outer wall of the guide rod 42 and located inside the first slot rod 41. Each slider 43 is installed with a first resistance heater 49 near the central axis direction of the fixed plate 31. Each first slot rod 41 is installed with a second resistance heater 401 on one side of the fixed plate 31 and below the guide rod 42. When the product is placed above the fixed plate 31, the second resistance heater 401 and the plurality of first resistance heaters 49 cooperate to heat and raise the temperature around the product, thereby achieving the purpose of sintering the product. In addition, the plurality of first resistance heaters 49 are arranged in the vertical direction by using the first slot rod 41, the guide rod 42 and the four sliders 43, so that the second resistance heater 401 and the plurality of first resistance heaters 49 expand the heating range in the height direction of the furnace body 12, thereby avoiding the cooling of the exhaust gas generated by the product during the sintering process.

[0036] See also Figure 2 and Figure 4In this embodiment, four sliders 43 are arranged downward in sequence K1, K2, K3 and K4, wherein a first hinge rod 46 is hinged on the side wall of each slider 43, and a second hinge rod 48 is hinged on the side wall of the sliders 43 arranged in the order of K2, K3 and K4 and the lower part of the side wall of the first slot rod 41, and the guide rod 42 on each slider 43 is hinged to the second hinge rod 48 adjacent thereto, and a limiting column 47 is connected to the side wall of each second hinge rod 48, An upper guide column 44 is connected to the upper side of a slot rod 41 away from the first resistance heater 49, and a second slot rod 45 is sleeved and slidably connected to the outer wall of the upper guide column 44. The second slot rod 45 is vertically arranged, and each limit column 47 is inserted into the inside of the second slot rod 45. The push plate 404 is used to guide the limit column 47 on each second hinge rod 48, and when the push plate 404 moves toward the direction of the first slot rod 41, the push plate 404 pushes the second slot rod 45 and the limit column 47 toward the first slot rod. When the first and second hinged rods 46 and 48 are moved in the direction of the first slotted rod 41, one end of the second hinged rod 48 corresponding to the limiting column 47 approaches the position of the first slotted rod 41, and the other end of the second hinged rod 48 pushes the slider 43 to slide inside the first slotted rod 41. At the same time, the first hinged rod 46 hinged to the second hinged rod 48 swings synchronously under the influence of the swinging force of the second hinged rod 48, and the first hinged rod 46 applies a thrust to the corresponding slider 43 synchronously. This arrangement allows one slider 43 to simultaneously bear the thrust of the corresponding first hinged rod 46 and second hinged rod 48. In this process, since the lowest second hinged rod 48 is hinged to the first slotted rod 41 and the position of the hinge point remains unchanged, therefore, when the first hinged rod 46 and the second hinged rod 48 are affected by the inclined guiding angle of their own initial state, the purpose of the four sliders 43 being equidistantly separated upward is finally achieved. Conversely, when the hinge point of the first hinged rod 46 and the second hinged rod 48 moves in the direction away from the first slotted rod 41, the four sliders 43 are pulled equidistantly close to each other.

[0037] See also Figure 2-Figure 4In this embodiment, the first slot rod 41 is horizontally connected to a lower guide column 402 at a side away from the first resistance heater 49 and located at the bottom end of the second slot rod 45. The bottom end of the second slot rod 45 and the top end of the push plate 404 are sleeved and slidably connected to the outer wall of the lower guide column 402. A micro cylinder 403 is installed on the side of the first slot rod 41 away from the second resistance heater 401. The piston rod of the micro cylinder 403 extends in a direction away from the corresponding first slot rod 41, and the piston rod of the micro cylinder 403 is connected to a push plate 404. The side wall of the push plate 404 is connected to the side wall of the corresponding second slot rod 45. The micro cylinder 403 is used to push the push plate 404 on the lower guide column 40 2, when the piston rod of the micro cylinder 403 contracts, the push plate 404 pushes the second slot rod 45 to move in the direction of the first slot rod 41, so that the four sliders 43 are equidistantly separated upward, causing the corresponding first resistance heaters 49 to be equidistantly separated upward, thereby increasing the heating range of the first resistance heater 49 in the vertical direction; conversely, when the piston rod of the micro cylinder 403 is extended, the second slot rod 45 moves away from the first slot rod 41, causing the four sliders 43 and the corresponding first resistance heaters 49 to be equidistantly approached downward, thereby narrowing the heating range of the first resistance heater 49, heating only small products, and shortening the preheating and heating time.

[0038] See also Figure 1 The outer wall of the furnace body 12 is provided with a recovery component 2, which is used to discharge the high-temperature tail gas generated inside the furnace body 12, not only to relieve the pressure inside the furnace body 12, but also to recover the high-temperature tail gas. The specific structure of the recovery component 2 is as follows:

[0039] See also Figure 1 The recovery component 2 includes two connecting plates 22 which are symmetrically arranged on the outer wall of the furnace body 12. Two shunt pipes 21 are penetrated on the two connecting plates 22. One end of the shunt pipe 21 is connected to the furnace body 12. One end of one of the shunt pipes 21 away from the furnace body 12 is connected to a connecting pipe 23. The connecting pipe 23 is connected to the other three shunt pipes 21 in turn. The two shunt pipes 21 on each connecting plate 22 discharge the high-temperature exhaust gas in the furnace body 12 in time at the same time to avoid the accumulation of exhaust gas in the furnace body 12 and adhesion to the inner wall. The exhaust gas collected by the shunt pipe 21 is discharged centrally using the connecting pipe 23.

[0040] See also Figure 1In this embodiment, one end of the connecting pipe 23 away from the diverter pipe 21 is connected to the exhaust pipe 25, and a valve 26 is installed on the outer wall of the exhaust pipe 25. The side walls of the two connecting plates 22 are connected to the bracket 24, and the connecting pipe 23 is snap-connected to the bracket 24. The connecting pipe 23 continues to discharge and transport the exhaust gas through the exhaust pipe 25. When the exhaust pipe 25 is discharging high-temperature exhaust gas, the valve 26 is in an open state. When the exhaust gas stops being discharged, the valve 26 is closed and the furnace body 12 continues to be closed.

[0041] Specifically, the staff places the product to be sintered on the top of the fixed plate 31, and then closes the two furnace doors 14, so that a closed space is formed in the furnace body 12, and the three groups of heating components 4 cooperate to surround the product. When the product is sintering, in order to shorten the heating time of the product, the piston rod of the micro cylinder 403 is extended, and the micro cylinder 403 is used to push the push plate 404 to slide on the outer wall of the lower guide column 402, so that the limit column 47 and the hinge points of the first hinge rod 46 and the second hinge rod 48 move synchronously with the second slot rod 45, and the second slot rod 45 moves away from the first slot rod 41. The four sliders 43 are pulled by the first hinge rod 46 and the second hinge rod 48 and are equidistantly close to each other, so that the heating range of the first resistance heater 49 is reduced downward, thereby achieving the purpose of heating the area around the product.

[0042] The product will generate waste gas during the continuous heating and sintering process. This waste gas is mainly generated by impurities in the product raw materials. After the product is sintered, the first resistance heater 49 is separated upward at equal distances to increase the heating range. The first resistance heater 49 and the second resistance heater 401 cooperate to assist in heating the exhaust gas generated in the furnace body 12. The two shunt pipes 21 on each connecting plate 22 simultaneously discharge the high-temperature exhaust gas in the furnace body 12 in time to avoid the accumulation of exhaust gas in the furnace body 12 and adhesion to the inner wall. The exhaust gas collected by the shunt pipe 21 is discharged in a centralized manner using the connecting pipe 23, and the inside of the furnace body 12 is depressurized at the same time. When the pressure of the furnace body 12 is reduced, the staff opens the furnace body 12 through the furnace door 14, and then removes the sintered product.

[0043] Obviously, the embodiments described above are only some embodiments of the utility model, not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

Claims

1. A sintering furnace auxiliary heating device, characterized in that: It comprises a main component (1), a recovery component (2) installed on one side of the main component (1), an adjustment component (3) installed inside the main component (1), and three sets of heating components (4) connected to the top of the adjustment component (3); The main component (1) comprises a frame (11) and a furnace body (12) vertically mounted inside the frame (11); the recovery component (2) is arranged on an outer wall of the furnace body (12) and is in communication with the furnace body (12); The recovery assembly (2) comprises two connecting plates (22) which are symmetrically arranged on the outer side wall of the furnace body (12), two shunt pipes (21) being provided through the two connecting plates (22), one end of the shunt pipes (21) being connected to the furnace body (12), one end of one of the shunt pipes (21) away from the furnace body (12) being connected to a connecting pipe (23), and the connecting pipe (23) being connected to the other three shunt pipes (21) in sequence; The adjustment component (3) comprises a fixing plate (31) mounted on the outer wall of the furnace body (12) and a three-jaw chuck (32) mounted on the bottom of the fixing plate (31); the bottom of the three-jaw chuck (32) is slidably connected to three slide seats (33); the three groups of heating components (4) are respectively arranged corresponding to the three slide seats (33), and the heating components (4) are mounted on the bottom of the corresponding slide seats (33); The three groups of heating components (4) all include a first slot rod (41), the first slot rod (41) being vertically mounted on the bottom of a corresponding slide seat (33), the interior of the first slot rod (41) being vertically connected to a guide rod (42), the outer wall of the guide rod (42) being slidably connected to four sliders (43) located inside the first slot rod (41), each slider (43) being mounted with a first resistance heater (49) close to the central axis direction of the fixed plate (31), and each first slot rod (41) being mounted with a second resistance heater (401) close to one side of the fixed plate (31) and located below the guide rod (42).

2. The auxiliary heating device for a sintering furnace according to claim 1, characterized in that: One end of the connecting pipe (23) away from the flow dividing pipe (21) is connected to an exhaust pipe (25), and a valve (26) is installed on the outer wall of the exhaust pipe (25). The side walls of the two connecting plates (22) are both connected to a bracket (24), and the connecting pipe (23) is clamped on the bracket (24).

3. The auxiliary heating device for a sintering furnace according to claim 1, characterized in that: The four sliders (43) are arranged downward in sequence K1, K2, K3 and K4, wherein a first hinge rod (46) is hinged on the side wall of each slider (43), and a second hinge rod (48) is hinged on the side wall of the sliders (43) arranged in the order of K2, K3 and K4 and the lower part of the side wall of the first slot rod (41), and the guide rod (42) on each slider (43) is hinged to the second hinge rod (48) adjacent thereto, and a limiting column (47) is connected to the side wall of each second hinge rod (48), and an upper guide column (44) is connected to the upper part of the side of the first slot rod (41) away from the first resistance heater (49), and a second slot rod (45) is sleeved on the outer side wall of the upper guide column (44) and slidably connected thereto, and the second slot rod (45) is arranged vertically, and each limiting column (47) is inserted into the inside of the second slot rod (45).

4. The auxiliary heating device for a sintering furnace according to claim 3, characterized in that: A micro cylinder (403) is installed on the side of the first slot rod (41) away from the second resistance heater (401), the piston rod of the micro cylinder (403) extends in a direction away from the corresponding first slot rod (41), and the piston rod of the micro cylinder (403) is connected to a push plate (404), and the side wall of the push plate (404) is connected to the side wall of the corresponding second slot rod (45).

5. The auxiliary heating device for a sintering furnace according to claim 4, characterized in that: A lower guide column (402) is horizontally connected to the first slot rod (41) at a side away from the first resistance heater (49) and located at the bottom end of the second slot rod (45); the bottom end of the second slot rod (45) and the top end of the push plate (404) are sleeved and slidably connected to the outer wall of the lower guide column (402).

6. The auxiliary heating device for a sintering furnace according to claim 1, characterized in that: Two groups of hinged seats (13) are symmetrically mounted on the top of the frame (11), and furnace doors (14) for closing the top opening of the furnace body (12) are hingedly mounted on the two groups of hinged seats (13).

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