Tunnel kiln charge car circulation heating device

Abstract

The present invention discloses a circulation heating device for a tunnel kiln charge cart, which relates to the field of kiln heating. The present invention has a simple structure and comprises a furnace body providing a heat source, a charge cart for conveying mold shells, a motorized roller conveyor, a feed transfer cart arranged on one side of a feed door, a discharge transfer cart arranged on one side of a discharge door, and a pusher. The feed transfer cart is used to transfer the charge cart from the motorized roller conveyor to the feed door, and the discharge transfer cart is used to transport the heated charge cart out of the discharge door. By respectively arranging a feed transfer cart for conveying empty mold shells and a discharge transfer cart for outputting heated mold shells at both ends of the furnace body, and a motorized roller conveyor for circulating the charge cart carrying the mold shells, the present invention can always heat the empty mold shells in circulation. Compared with the prior art, the present invention has high overall production continuity, and improves the overall processing efficiency of the product to a certain extent.

Description

Technical Field

[0001] The invention relates to the field of kiln heating, in particular to a circulating heating device for a tunnel kiln charge car. Background Art

[0002] During the production process, the tunnel kiln can heat the mold shells placed on the material cart inside it, and in order to minimize the waste of tunnel kiln space, the material carts inside it are arranged adjacent to each other. After the mold shells on the material carts are heated, the staff pushes the material carts with the mold shells to be heated into the tunnel kiln from the feed door. At this time, under the action of the thrust, the material carts at the discharge door are pushed out of the tunnel kiln. After the staff pulls the material cart out and separates it from the discharge door of the tunnel kiln for a distance, the feed door and the discharge door are closed to reduce the heat loss in the tunnel kiln. At the same time, the staff takes the heated mold shells from the material carts and injects a certain amount of molten steel into the mold shells. After the molten steel is cooled in the mold shell cavity, the mold shells are crushed and removed to obtain the required mechanical parts. In addition, during the production process, there is a situation where there are some mold shells left on the last material cart after a furnace of molten steel is poured. While waiting for the next furnace of molten steel to melt, the mold shells on the last material cart will cool in the workshop and no longer meet the process requirements and can only be discarded. In this case, energy and materials will be wasted.

[0003] In the above-mentioned prior art, the steps of moving, operating and removing the mold shell driven by the material cart in the tunnel kiln all require operators to operate them, and the overall production continuity is not high, which will affect the processing efficiency of the product to a certain extent. Summary of the invention

[0004] The object of the present invention is to provide a tunnel kiln material cart circulation heating device, wherein a feed transfer cart and a discharge transfer cart for transporting the material cart are arranged at both ends of the furnace body, and a motorized roller conveyor for transporting empty mold shells is arranged at the feed transfer cart. Through the above-mentioned device, the operation of the material cart can be realized in a dynamic cycle to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] Tunnel kiln charge car circulation heating device, including:

[0007] A furnace body for providing a heat source, wherein a through furnace cavity is formed in the furnace body, and a feed door and a discharge door are respectively fixed on both sides of the furnace cavity;

[0008] A material cart, which is used to transport the mold shell;

[0009] A motorized roller conveyor, which is used to convey material vehicles;

[0010] A feed transfer vehicle is arranged on one side of the feed door and a discharge transfer vehicle is arranged on one side of the discharge door, wherein the feed transfer vehicle is used to transfer the material vehicle from the motorized roller conveyor to the feed door, and the discharge transfer vehicle is used to transport the heated material vehicle out of the discharge door, and

[0011] A pusher is used to push the material cart on the feed transfer car into the cavity in the furnace.

[0012] As a further solution of the present invention: a reverse pusher is arranged on one side of the discharge door, and the reverse pusher is used to push the material cart on the discharge transfer vehicle into the cavity in the furnace.

[0013] As a further solution of the present invention: the motorized roller table includes a first reducer connected to the motorized roller table, a plurality of symmetrically distributed roller wheels, a roller table shaft fixed between two symmetrically distributed roller wheels, and a roller table frame serving as a support.

[0014] As a further solution of the present invention: the material cart includes a material cart support frame and a material cart guide rail fixed to the material cart support frame, the material cart guide rail is formed with a guide rail groove configured with the roller wheel, and a track configured with the guide rail groove is fixed to the lower surface of the cavity in the furnace.

[0015] As a further solution of the present invention: the transfer vehicle includes a frame, a roller table rotatably connected to the frame, a self-propelled mechanism that drives the frame to rotate, and a second reducer connected to the self-propelled mechanism.

[0016] As a further solution of the present invention: the upper surface of the track fixed in the cavity in the furnace, the contact surface between the guide rail of the material car and the roller wheel are all flush with the upper surface of the roller of the transfer car.

[0017] As a further solution of the present invention: the pusher and the reverse pusher both include a base frame that plays a supporting role, a cylinder fixed to the upper end surface of the base frame and used to push the base frame to reciprocate, a push head that can slide on the base frame driven by the cylinder, and a guide rod that limits the sliding trajectory of the push head.

[0018] Compared with the prior art, the beneficial effects of the present invention are: the present invention has a novel structure, and by respectively arranging a feed transfer trolley for conveying empty mold shells and a discharge transfer trolley for outputting heated mold shells at both ends of the furnace body, as well as a motorized roller for circulating the material trolley carrying the mold shells, the present invention can always heat the empty mold shells in circulation. Compared with the prior art, the overall production continuity of the present invention is high, and the overall processing efficiency of the product is improved to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A top view of a heating circulation device for a tunnel kiln charge car;

[0020] Figure 2It is a front view of a heating circulation device for a tunnel kiln charge car;

[0021] Figure 3 It is a side view of a heating circulation device for a tunnel kiln charge car;

[0022] Figure 4 It is a side view of a feed car in a tunnel kiln feed car heating circulation device;

[0023] Figure 5 A top view of a motorized roller table in a heating circulation device for a tunnel kiln charge car;

[0024] Figure 6 It is a side view of a motorized roller in a heating circulation device for a tunnel kiln charge car;

[0025] Figure 7 It is a front view of a transfer vehicle in a heating circulation device for a tunnel kiln material vehicle;

[0026] Figure 8 It is a side view of a transfer vehicle in a heating circulation device for a tunnel kiln charge vehicle;

[0027] Fig. 9 It is a top view of a pusher in a heating circulation device of a tunnel kiln charge car;

[0028] In the figure: 10-furnace body, 11-feeding door, 12-discharging door, 20-material cart, 21-material cart support frame, 22-material cart guide rail, 30-motorized roller, 31-first reducer, 32-roller wheel, 33-roller shaft, 34-roller frame, 40-discharging transfer vehicle, 41-roller, 42-frame, 43-second reducer, 44-self-propelled mechanism, 50-push machine, 51-underframe, 52-guide rod, 53-oil cylinder, 54-push head, 60-reverse push machine, 70-discharging transfer vehicle. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] like Figure 1As shown, in the embodiment of the present invention, the tunnel kiln material cart circulation heating device includes a furnace body 10, a material cart 20 for conveying mold shells, a motorized roller 30 for conveying the material cart 20, a feed transfer cart 40 connecting the motorized roller 30 and the furnace body, a discharge transfer cart for outputting the material cart from the furnace body, a pusher 50 for pushing the material cart 20 from the feed port into the furnace body 10, and a reverse pusher 60 for pushing the material cart 20 from the discharge port into the furnace body.

[0031] A through-type furnace cavity is formed in the furnace body 10, and the furnace body provides a heat source for the furnace cavity to heat objects in the furnace cavity, such as mold shells, etc. A feed door 11 and a discharge door 12 are fixed on both sides of the furnace body, respectively, for insulating the heat in the furnace body 10 to a certain extent and reducing the heat dissipation rate of the furnace body.

[0032] like Figure 3 and 4 As shown, the material cart 20 includes a material cart support frame 21 and a material cart guide rail 22 fixed to the material cart support frame 21, the material cart guide rail 22 is formed with a guide rail groove configured with the roller wheel 32, and a track configured with the guide rail groove is fixed on the lower surface of the cavity in the furnace. Through the mutual cooperation between the various structures on the material cart, the material cart 20 can be mainly used to transport the mold shell, and the mold shell is transported to the furnace body 10 for heating. After the heating is completed, the heated mold shell is output from the furnace body 10, which plays a bearing role for the mold shell that needs to be heated. At the same time, multiple mold shells can be placed on one material cart 20 through the material cart, thereby improving the flow heating efficiency of the mold shell on the overall production line.

[0033] like Figure 5 and 6 As shown, the motorized roller 30 includes a first reducer 31 connected to the motorized roller 30, a plurality of symmetrically distributed roller wheels 32, a roller shaft 33 fixed between two symmetrically distributed roller wheels 32, and a roller frame 34 for supporting. Through the mutual cooperation between the above structures, the material vehicle guide rail 22 under the material vehicle 20 can be configured with the motorized roller 32, so that the motorized roller 30 can be used to transport the material vehicle 20. During the operation of the device, as shown in FIG. Figure 1As shown, the material cart 20 carrying the empty mold shell is transported to the feed gate by the feed transfer cart 40. After the material cart enters the furnace body 10 and is heated, it is moved from the discharge gate to the discharge transfer cart. The staff unloads the heated mold shell on the material cart 20, injects molten steel into it, and performs subsequent product production processes. The material cart 20 is transferred to the motorized roller conveyor 30 by the discharge transfer cart 70. During the movement of the material cart on the motorized roller conveyor 30, the staff can place the empty mold shell to be heated. On the material cart, the material cart 20 carrying the empty mold shell is transported to the feed door by the feed transfer cart, and the material cart enters the furnace body 10 again for heating, completing a cycle of heating and removing the mold shell. Compared with the prior art method that requires staff to move the empty material cart from the discharge port to the feed port, the present invention uses the motorized roller 30, the discharge transfer cart and the feed transfer cart to enable the material cart to move from the feed door to the discharge door, and then from the discharge door to the feed door, forming a complete cycle.

[0034] like Figure 7 and 8 As shown, the transfer vehicle includes a frame 42, a roller table 41 rotatably connected to the frame 42, a self-propelled mechanism 44 that drives the frame 42 to rotate, and a second reducer 43 connected to the self-propelled mechanism. The feed transfer vehicle 40 is used to connect the motorized roller table 30 and the furnace body. Through the cooperation between the above structures, the transfer vehicle can reciprocate between the motorized roller table and the furnace body. The upper surface of the track fixed in the cavity in the furnace, the contact surface between the material vehicle guide rail 22 and the roller wheel 32 are all flush with the upper surface of the roller table 41 of the transfer vehicle. Through the above definition, the material vehicle 20 can move back and forth smoothly on the transfer vehicle and the motorized roller table 30. During operation, the feed transfer trolley transports the material vehicle 20 carrying the empty mold shell from the motorized roller table 30 It is sent to the feed door 11, and the discharge transfer cart 70 is used to move the material cart carrying the heated mold shell out of the discharge door. Compared with the prior art, the staff will pull out the material cart pushed out from the discharge door, and the discharge door can be closed after it is pulled out a certain distance from the discharge door. The present invention does not require the staff to pull the material cart close to the furnace body. The material cart pushed out from the discharge door after heating can be moved out by the discharge transfer cart, which reduces the danger of the mold taking staff to a certain extent. In addition, the feed transfer cart can move the empty material cart to the motorized roller conveyor 30. During the movement of the empty material cart on the motorized roller conveyor 30, the staff can place the empty mold shell on the material cart 20 at this stage, thereby ensuring that the heating cycle of the mold shell forms a good passage.

[0035] like Fig. 9As shown, the pusher 50 and the reverse pusher 60 both include a base frame 51 that plays a supporting role, a cylinder 53 fixed to the upper end surface of the base frame and used to push the base frame to reciprocate, a pusher head 54 that is driven by the cylinder to slide on the base frame 51, and a guide rod 52 that limits the sliding trajectory of the pusher head. The pusher 50 is used to push the material cart on the feed transfer cart 40 into the cavity in the furnace. When the feed transfer cart 40 moves to the feed door, the pusher is started, and the guide rod 52 is driven by the cylinder to push the pusher head 54 to push the material cart 20 on the feed transfer cart 40 into the cavity in the furnace. At the same time, the material cart at the discharge door is squeezed out of the furnace body 10 from the cavity in the furnace, and at the same time, the squeezed material cart 20 is transferred to the discharge transfer cart at the discharge door 12. 40, at this time, the material discharging transfer vehicle 40 transports the extruded material cart 20 out, injects molten steel into the empty mold shell that has been heated on the material cart, and performs further processing; when the empty mold shell after heating is extruded from the furnace body, the temperature of the mold shell will drop rapidly. When the molten steel that needs to be injected into it has not been replenished in time, the reverse pusher is started at this time, and the mold shell extruded from the furnace is pushed back into the furnace from the discharging door through the cooperation of the guide rod and the pusher head for insulation. After the molten steel is replenished, the mold shell is extruded, and the staff injects molten steel into the heated empty mold shell again for subsequent processing. Compared with the tunnel kiln without a reverse pusher in the prior art, the present invention saves resources to a certain extent and reduces the waste of mold shells and heat energy.

[0036] In the present invention, the roller frame 34 can play the role of connecting the feed transfer trolley with the discharging transfer trolley, and the roller frame 34 can be connected only to the feed transfer trolley. When the roller frame 34 is connected to the feed transfer trolley and the discharging transfer trolley, the roller frame 34 can move the empty trolley transported from the discharging transfer trolley toward the feed transfer trolley. At the same time, the staff can place the empty mold shell to be heated on the empty trolley during this process, so that the trolley can carry the mold shell for a complete heating cycle; in addition, when the roller frame 34 is only connected to the feed transfer trolley, after the discharging transfer trolley transports the heated mold shell out of the discharging door, the staff will remove the trolley connected to the mold shell together for subsequent processing. On the motorized roller, the staff will place the trolley 20 with the empty mold shell on the motorized roller 30, and then move the trolley to the feed door through the feed transfer trolley, and push the trolley carrying the empty mold shell to be heated into the cavity in the furnace through the pusher 50.

[0037] The present invention has a novel structure and stable operation. When the present invention is used, the staff first places the empty mold shell to be heated on the material cart 20, and then places the material cart 20 on the motorized roller 30. Through the action of the motorized roller 30, the material cart 20 is moved to the feed transfer trolley 40 (the feed transfer trolley reciprocates between the motorized roller 30 and the feed door), and then the material cart 20 is transported to the feed door by the feed transfer trolley 40. At this time, the pusher 50 pushes the material cart into the cavity in the furnace, and at the same time, the material door is heated after the heating is completed. The material cart 20 is pushed out onto the discharge transfer cart 70, which outputs the material cart from the discharge door. The staff takes the mold shell after heating from the material cart, injects molten steel into the empty mold shell after heating, and then carries out subsequent process processing. At the same time, the empty material cart is transported to the motorized roller 30 by the discharge transfer cart, and then the above operation is repeated, so that the furnace body 10 always heats the circulating empty mold shell. Compared with the prior art, the overall production continuity of the present invention is high, which improves the overall processing efficiency of the product to a certain extent.

[0038] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0039] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. The circulating heating device for the tunnel kiln charge car is characterized by: include: A furnace body (10) for providing a heat source, wherein a through-type furnace cavity is formed in the furnace body (10), and a feed door (11) and a discharge door (12) are respectively fixed on both sides of the furnace cavity; A material cart (20), the material cart (20) is used to transport the mold shell; A motorized roller conveyor (30), the motorized roller conveyor (30) being used for conveying the material vehicle (20); a feed transfer vehicle (40) disposed on one side of the feed door (11) and a discharge transfer vehicle (70) disposed on one side of the discharge door (12), wherein the feed transfer vehicle (40) is used to transfer the material vehicle (20) from the motorized roller conveyor (30) to the feed door (11), and the discharge transfer vehicle (70) is used to transport the heated material vehicle (20) out of the discharge door (12); and A pusher (50), the pusher (50) is used to push the material cart (20) on the feed transfer cart (40) into the cavity in the furnace; A reverse pusher (60) is provided on one side of the discharge door (12), and the reverse pusher (60) is used to push the material cart (20) on the discharge transfer cart (70) into the cavity in the furnace; The motorized roller conveyor (30) comprises a first reducer (31) connected to the motorized roller conveyor (30), a plurality of symmetrically distributed roller conveyor wheels (32), a roller conveyor shaft (33) fixed between two symmetrically distributed roller conveyor wheels (32), and a roller conveyor frame (34) having a supporting function.

2. The tunnel kiln charge car circulation heating device according to claim 1 is characterized in that: The material cart (20) comprises a material cart support frame (21) and a material cart guide rail (22) fixed to the material cart support frame (21); the material cart guide rail (22) is formed with a guide rail groove configured with a roller wheel (32); and a track configured with the guide rail groove is fixed to the lower surface of the cavity in the furnace.

3. The tunnel kiln charge car circulation heating device according to claim 1 is characterized in that: The feed transfer vehicle (40) comprises a vehicle frame (42), a roller conveyor (41) rotatably connected to the vehicle frame (42), a self-propelled mechanism (44) for driving the vehicle frame (42) to rotate, and a second reducer (43) connected to the self-propelled mechanism (44).

4. The tunnel kiln charge car circulation heating device according to claim 2 or 3, characterized in that: The upper surface of the track fixed in the cavity in the furnace, the contact surface between the guide rail (22) of the material car and the roller wheel (32) are all flush with the upper surface of the roller (41) of the feed transfer car (40).

5. The tunnel kiln charge car circulation heating device according to claim 1 is characterized in that: The pusher (50) and the reverse pusher (60) both include a base frame (51) that plays a supporting role, a cylinder (53) fixed to the upper end surface of the base frame (51) and used to push the base frame (51) to reciprocate, a pusher head (54) that can slide on the base frame (51) driven by the cylinder (53), and a guide rod (52) that limits the sliding trajectory of the pusher head (54).

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