Kiln heat energy balance pipeline mechanism

Abstract

The invention relates to the technical field of kiln pipelines, in particular to a kiln heat energy balance pipeline mechanism which comprises sintering equipment, an in-kiln channel A and an in-kiln channel B are formed in the sintering equipment, an electric heater and a material conveying rail are arranged in the in-kiln channel A and the in-kiln channel B correspondingly, and a circulating fan is arranged on the side face of the in-kiln channel A; an exhaust round pipe is communicated between the circulating fan and the kiln inner channel A. The air inlet end of the circulating fan is communicated with an air inlet round pipe which is provided with a heat energy circulating mechanism used for conveying heat energy of the cooling section of the sintering equipment. By arranging the circulating fan and the heat energy circulating mechanism, hot air in the cooling section of the sintering equipment is conveyed to the in-kiln channel A again, so that the entering air is in a high-temperature state, compared with direct input of external cold air, the temperature difference between the in-kiln channel A and the in-kiln channel B is remarkably reduced, the temperature uniformity in the sintering process is optimized, and the sintering efficiency is improved. And the heat energy loss is reduced, the energy utilization rate is improved, and the overall energy consumption is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of kiln pipes, and in particular to a kiln heat energy balance pipe mechanism. Background Art

[0002] In traditional sintering equipment, the kiln usually uses the method of directly inputting external cold air to supply oxygen to the combustion zone. However, this method will cause a large temperature difference between different areas in the kiln (such as lanes A and B), affecting the uniformity of the sintering temperature, and thus causing problems such as asynchronous volatilization of the product glue and unstable sintering quality.

[0003] In this regard, some kilns in the existing technology try to adopt the method of heating the cold air first and then inputting it. Although this can reduce the temperature difference between channels A and B to a certain extent, it consumes a lot of energy, and the heat in the cooling section of the sintering equipment is often wasted. Summary of the Invention

[0004] In response to the shortcomings of the existing technology, the present invention provides a kiln thermal energy balance pipeline mechanism, which solves the technical problem that the kiln in the existing technology cannot effectively utilize the heat of the cooling section, resulting in a large temperature difference between channel A and channel B, which will adversely affect the sintering quality of the product.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: a kiln heat energy balance pipeline mechanism includes a sintering device, wherein a kiln A channel and a kiln B channel are opened inside the sintering device, an electric heater and a material conveying track are respectively provided inside the kiln A channel and the kiln B channel, a circulating fan is provided on the side of the kiln A channel, an exhaust circular pipe is connected between the circulating fan and the kiln A channel, and an air inlet end of the circulating fan is connected to an air inlet circular pipe. During the sintering process of the product in the kiln A channel and the kiln B channel, the circulating fan will pass through the exhaust circular pipe. Air is input into the interior of channel A in the kiln to ensure the normal progress of the sintering operation. The air intake circular pipe is provided with a heat energy circulation mechanism for transporting heat energy of the cooling section of the sintering equipment. The heat energy circulation mechanism includes a connecting component. One side of the connecting component is provided with a main exhaust pipe connected to the air intake circular pipe, and the other side of the connecting component is provided with a branch air intake pipe. The outer sleeve of the branch air intake pipe is provided with a thermal insulation sleeve, and the outer sleeve of the thermal insulation sleeve is provided with an outer protective sleeve. When the circulating fan is powered on, the hot air inside the branch air intake pipe will be sucked into the interior of channel A in the kiln, thereby promoting combustion.

[0006] Preferably, a number of branch air inlet pipes are arranged at equal intervals, which can not only improve the efficiency of heat transfer and achieve multi-point heat transfer, but also enable cyclic maintenance of the pipeline without stopping and waiting.

[0007] Preferably, the internal rotation of the branch air inlet pipe is connected with an inclined baffle, and the outer side of the branch air inlet pipe is detachably installed with a water receiving box. Initially, the inclined baffle blocks the inside of the branch air inlet pipe. When heat is transported, the inclined baffle will rotate upward under the action of the circulating fan.

[0008] Preferably, the thermal insulation sleeve is made of polyurethane foam, which can effectively reduce heat loss during heat transfer.

[0009] Preferably, the branch air inlet pipe is made of stainless steel, and the outer protective sleeve is made of polyethylene material. The outer protective sleeve can provide a certain degree of protection for the thermal insulation sleeve to prevent the thermal insulation sleeve from being damaged.

[0010] By means of the above technical solution, the present invention provides a kiln heat energy balance piping mechanism, which has at least the following beneficial effects: 1. The present invention provides a circulating fan and a heat circulation mechanism to re-transport the hot air from the cooling section of the sintering equipment to channel A in the kiln, so that the incoming air is in a high-temperature state. Compared with directly inputting external cold air, the temperature difference between channel A and channel B in the kiln is significantly reduced. This not only optimizes the temperature uniformity of the sintering process, but also reduces heat energy loss, improves energy utilization, and thus reduces overall energy consumption.

[0011] 2. The present invention provides a circulating fan and a heat circulation mechanism, inputs preheated air from the side, and combines the synergistic effect of the electric heater and the feed track to ensure uniform temperature distribution during the sintering process, avoiding local overheating or overcooling. This stable thermal environment allows the product glue to volatilize synchronously, thereby reducing sintering defects, improving the density and mechanical properties of the product, and ensuring the quality consistency of the sintered product.

[0012] 3. The present invention provides connecting components and branch air intake pipes, and the branch air intake pipes are arranged in multiple groups with equal spacing to form a multi-point heat absorption and heat transfer network, which not only improves the heat transfer efficiency, but also enables rotation maintenance without downtime, greatly reducing production interruption time. In addition, the design of the inclined baffle and water collection box can automatically collect condensed water to prevent pipe blockage or corrosion, extend the service life of the equipment, and reduce maintenance costs.

[0013] 4. The present invention provides an insulation sleeve and an outer protective sleeve. The branch air inlet pipe is made of stainless steel, and the outer protective sleeve is made of polyethylene, which has both high temperature resistance and corrosion resistance. At the same time, the insulation sleeve can effectively reduce heat loss. The overall structure takes into account thermal efficiency, safety and durability. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings: Figure 1 A three-dimensional diagram of the overall structure of the present invention; Figure 2 It is a front view of the overall structure of the present invention; Figure 3 Schematic diagram of the structure of the heat energy circulation mechanism in the present invention; Figure 4 A bottom view of the overall structure of the present invention; Figure 5 It is a cross-sectional view of part of the structure of the present invention; Figure 6 Schematic diagram of the interior of the branch air intake pipe in the present invention.

[0015] In the figure: 1. Sintering equipment; 2. Kiln A channel; 3. Kiln B channel; 4. Electric heater; 5. Feed track; 6. Circulation fan; 7. Exhaust circular pipe; 8. Inlet circular pipe; 9. Heat energy circulation mechanism; 901. Connecting assembly; 902. Main exhaust pipe; 903. Branch inlet pipe; 904. Insulation sleeve; 905. Outer protective sleeve; 906. Inclined baffle; 907. Water collection box. DETAILED DESCRIPTION

[0016] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0017] Example 1 In the prior art, some kilns try to heat the cold air first and then input it. Although this can reduce the temperature difference between the A and B channels to a certain extent, it consumes a lot of energy and the heat in the cooling section of the sintering equipment 1 is often wasted. In order to solve this technical defect in the prior art, Figures 1-6 As shown, this embodiment proposes a kiln heat energy balance pipeline mechanism, which can significantly reduce the temperature difference between the kiln A channel 2 and the kiln B channel 3. Specifically, the interior of the sintering equipment 1 is provided with the kiln A channel 2 and the kiln B channel 3. The interiors of the kiln A channel 2 and the kiln B channel 3 are respectively provided with electric heaters 4 and conveying tracks 5. A circulating fan 6 is provided on the side of the kiln A channel 2. An exhaust circular pipe 7 is connected between the circulating fan 6 and the kiln A channel 2. The air inlet end of the circulating fan 6 is connected with an air inlet circular pipe 8. During the sintering process of the product in the kiln A channel 2 and the kiln B channel 3, the circulating fan 6 will input air into the interior of the kiln A channel 2 through the exhaust circular pipe 7, thereby ensuring the normal progress of the sintering operation.

[0018] Specifically, the air intake pipe 8 is provided with a heat energy circulation mechanism 9 for conveying heat energy of the cooling section of the sintering equipment 1. The heat energy circulation mechanism 9 includes a connecting component 901. One side of the connecting component 901 is provided with a main exhaust pipe 902 connected to the air intake pipe 8. The other side of the connecting component 901 is provided with a branch air intake pipe 903. The branch air intake pipe 903 is made of stainless steel. There are several branch air intake pipes 903 at equal intervals, which can not only improve the efficiency of heat transmission and realize multi-point heat transfer, but also carry out cyclic maintenance of the pipeline without stopping and waiting. The outer sleeve of the branch air intake pipe 903 is provided with a heat preservation sleeve 904. The heat preservation sleeve 904 is made of polyurethane foam, which can effectively reduce the heat in the process of heat transmission. Heat loss, the outer sleeve of the insulation sleeve 904 is provided with an outer protective sleeve 905. When the circulating fan 6 is powered on, the hot air inside the branch air inlet pipe 903 will be sucked into the inside of the A channel 2 in the kiln, thereby promoting combustion. The outer protective sleeve 905 is made of polyethylene material. The outer protective sleeve 905 can provide a certain protection for the insulation sleeve 904 to avoid damage to the insulation sleeve 904. The inner rotation of the branch air inlet pipe 903 is connected with an inclined baffle 906, and the outer side of the branch air inlet pipe 903 is detachably installed with a water receiving box 907. Initially, the inclined baffle 906 blocks the inside of the branch air inlet pipe 903. When heat is transported, the inclined baffle 906 will rotate upward under the action of the circulating fan 6.

[0019] According to the above content, during the sintering process of the product, the circulating fan 6 will automatically transfer the heat generated by the cooling section of the sintering equipment 1 to the interior of the A channel 2 in the conveying kiln through the branch air inlet pipe 903, so that the air entering the A channel 2 in the kiln is in a high-temperature state. Compared with the method of directly conveying external air to the A channel 2 in the kiln in the prior art, it can effectively reduce the temperature difference between the A channel 2 in the kiln and the B channel 3 in the kiln, ensuring that the volatilization of the product glue can proceed synchronously.

[0020] Moreover, if Figure 1 As shown, multiple branch air intake pipes 903 are provided, and multiple heat absorption sites can be set near the cooling end of the sintering equipment 1, which can effectively improve the efficiency of heat transfer, thereby ensuring the normal progress of the sintering process. In addition, multiple branch air intake pipes 903 can be inspected and maintained in turn without stopping and waiting.

[0021] In addition, if Figure 6 As shown, each branch air inlet pipe 903 is provided with an inclined baffle 906. After the circulating fan 6 stops working, the inclined baffle 906 will tilt and block the inside of the branch air inlet pipe 903. Next, the condensed water generated on the inner wall of the branch air inlet pipe 903 will flow downward along the inner wall of the pipe. Then, the condensed water will flow into the inside of the water receiving box 907 under the action of the inclined baffle 906.

[0022] In this embodiment, a circulating fan 6 and a heat circulation mechanism 9 are provided to transport the hot air from the cooling section of the sintering equipment 1 back to the A channel 2 in the kiln, so that the incoming air is in a high-temperature state. Compared with directly inputting external cold air, the temperature difference between the A channel 2 in the kiln and the B channel 3 in the kiln is significantly reduced, which not only optimizes the temperature uniformity of the sintering process, but also reduces heat energy loss, improves energy utilization, and thus reduces overall energy consumption; moreover, in this embodiment, a circulating fan 6 and a heat circulation mechanism 9 are provided to input preheated air from the side, and the synergistic effect of the electric heater 4 and the feed track 5 is combined to ensure uniform temperature distribution during the sintering process, avoid local overheating or overcooling, and this stable thermal environment enables the volatilization of the product glue to proceed synchronously, thereby reducing sintering defects, improving the density and mechanical properties of the product, and ensuring The quality consistency of sintered products; moreover, in this embodiment, by providing a connecting component 901 and a branch air inlet pipe 903, the branch air inlet pipe 903 is arranged in multiple groups with equal spacing to form a multi-point heat absorption and heat transfer network, which not only improves the heat transfer efficiency, but also enables rotation maintenance without downtime, greatly reducing production interruption time. In addition, the design of the inclined baffle 906 and the water collection box 907 can automatically collect condensed water to prevent pipe blockage or corrosion, extend the service life of the equipment, and reduce maintenance costs; in addition, in this embodiment, by providing an insulation sleeve 904 and an outer protective sleeve 905, the branch air inlet pipe 903 is made of stainless steel and the outer protective sleeve 905 is made of polyethylene material, which has both high temperature resistance and corrosion resistance. At the same time, the insulation sleeve 904 can effectively reduce heat loss, and the overall structure takes into account thermal efficiency, safety and durability.

[0023] The control method of the present invention is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by a person skilled in the art. The provision of power is also common knowledge in the art. The present invention is mainly used to protect mechanical devices, so the control method and circuit connection are not explained in detail in the present invention.

[0024] It should be noted that, in this document, relational terms such as first and second, etc., are used only 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 terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0025] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A kiln heat balance piping structure, comprising a sintering device (1), characterized in that: The sintering equipment (1) is provided with a kiln channel A (2) and a kiln channel B (3), and an electric heater (4) and a material conveying track (5) are provided inside the kiln channel A (2) and the kiln channel B (3), respectively. A circulating fan (6) is provided on the side of the kiln channel A (2), and an exhaust pipe (7) is connected between the circulating fan (6) and the kiln channel A (2), and an air inlet pipe (8) is connected to the air inlet end of the circulating fan (6); The air intake circular tube (8) is provided with a heat energy circulation mechanism (9) for conveying heat energy of the cooling section of the sintering equipment. The heat energy circulation mechanism (9) comprises a connecting assembly (901). One side of the connecting assembly (901) is provided with a main exhaust pipe (902) connected to the air intake circular tube (8). The other side of the connecting assembly (901) is provided with a branch air intake pipe (903). The branch air intake pipe (903) is externally sheathed with a heat-insulating sleeve (904). The heat-insulating sleeve (904) is externally sheathed with an outer protective sleeve (905).

2. The kiln heat energy balance piping mechanism according to claim 1, characterized in that: A plurality of branch air inlet pipes (903) are arranged at equal intervals.

3. The kiln heat energy balance piping mechanism according to claim 1, characterized in that: The branch air inlet pipe (903) is rotatably connected to an inclined baffle (906) inside, and a water receiving box (907) is detachably mounted on the outside of the branch air inlet pipe (903).

4. The kiln heat energy balance piping mechanism according to claim 1, characterized in that: The thermal insulation sleeve (904) is made of polyurethane foam.

5. The kiln heat energy balance piping mechanism according to claim 1, characterized in that: The branch air inlet pipe (903) is made of stainless steel, and the outer sheath pipe (905) is made of polyethylene.

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