Oxygen-enriched sintering roller kiln

Abstract

The utility model discloses an oxygen-enriched sintering roller way kiln which comprises a supporting base, a roller way shell, an oxygen pumping mechanism and an oxygen supply mechanism, the oxygen pumping mechanism and the oxygen supply mechanism are installed on one side of the roller way shell, the oxygen pumping mechanism comprises an isolation net, a flow guide fan, a flow guide pipe, a flow pipe, a compressor and a screening isolation cylinder, and the isolation net is installed on one side of the flow guide fan; the flow guide fan is installed on one side of the roller way shell, a compressor is connected to the flowing pipe in an inserted mode, the screening isolation barrel is installed on the side, away from the compressor, of the flowing pipe, and the oxygen supply mechanism comprises a heating oxygen supply pipeline, a preheating oxygen supply pipeline and a cooling position. The flowing pipe is communicated with the heating oxygen supply pipeline and the preheating oxygen supply pipeline at the same time, and a check valve is arranged in the middle of the flowing pipe. And under the condition that oxygen in cooling air is purified and reused by the oxygen pumping mechanism and under the support of the oxygen supply mechanism, the stability and the energy-saving effect of the device during oxygen-enriched operation are ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of roller hearth furnaces, in particular to an oxygen-enriched sintering roller hearth kiln. Background Art

[0002] The roller furnace places the products directly or indirectly on rollers, and the continuous rotation of the rollers allows the fired products to move forward in sequence.

[0003] Oxygen-enriched sintering roller kilns achieve the effect of supporting combustion by adding a large amount of oxygen to the combustion area. However, when existing devices are used, the oxygen in the air is not fully utilized during the air cooling process, resulting in a certain amount of resource waste and affecting the device's effect on resource conservation and utilization. Summary of the Invention

[0004] The present invention addresses the problem that the cooling air is not fully utilized in the prior art and proposes the following technical solutions:

[0005] An oxygen-enriched sintering roller kiln comprises a supporting base, a roller shell, and an oxygen extraction mechanism and an oxygen supply mechanism installed on one side of the roller shell.

[0006] The oxygen extraction mechanism includes an isolation net, a guide fan, a guide pipe, a flow pipe, a compressor, and a screening isolation cylinder. The isolation net is installed on one side of the guide fan, the guide fan is installed on one side of the roller shell, and the guide pipe is installed on the other side of the roller shell. The guide fan, the roller shell, and the guide pipe are internally connected, and several of the guide pipes are connected to the flow pipe at the same time. The flow pipe is connected to a compressor, and the screening isolation cylinder is installed on the side of the flow pipe away from the compressor.

[0007] The oxygen supply mechanism includes a heating oxygen supply pipeline, a preheating oxygen supply pipeline, and a cooling place. The heating oxygen supply pipeline and the preheating oxygen supply pipeline are both connected to the cooling place. The heating oxygen supply pipeline is connected to the heating place, and the preheating oxygen supply pipeline is connected to the preheating place.

[0008] A cooling area is provided between the guide fan and the guide pipe, and the cooling area is located inside the roller housing. The flow pipe is connected to the heating oxygen supply pipe and the preheating oxygen supply pipe at the same time, and a check valve is provided in the middle of the flow pipe.

[0009] As a preferred embodiment of the above technical solution, there are several isolation nets, and the isolation nets are used for air circulation isolation.

[0010] As a preferred embodiment of the above technical solution, control valves are provided on both sides of the sub-screening isolation cylinder, and at least two cleaning valves are installed on the outside of the sub-screening isolation cylinder. The control valves are used to control the circulation of the flow pipe.

[0011] As a preferred embodiment of the above technical solution, the control valve is provided on both the heating oxygen supply pipeline and the preheating oxygen supply pipeline, and the two control valves are installed on the horizontal sections of the heating oxygen supply pipeline and the preheating oxygen supply pipeline.

[0012] As a preferred embodiment of the above technical solution, the inner wall diameter of the preheating oxygen supply pipe is smaller than the inner wall diameter of the heating oxygen supply pipe, and the heating oxygen supply pipe and the preheating oxygen supply pipe are connected to the flow pipe at the same position.

[0013] As a preferred embodiment of the above technical solution, the connection between the cooling portion and the flow pipe is located at a bend in the flow pipe and between the check valve and the control valve.

[0014] The beneficial effects of the utility model are:

[0015] (1) With the oxygen extraction mechanism purifying and reusing the oxygen in the cooling air, and with the support of the oxygen supply mechanism, the stability and energy saving effect of the device during oxygen-rich operation are guaranteed;

[0016] (2) When a certain amount of nitrogen molecules accumulate on the molecular sieve inside the screening isolation cylinder, close the control valves on both sides of the flow tube to stop the circulation of oxygen and air, then open the cleaning valve on one side of the screening isolation cylinder, connect the external cleaning liquid, and pour it into the inside of the screening isolation cylinder, then open the cleaning valve on the lower side of the screening isolation cylinder to discharge the cleaned solution, so as to achieve the effect of cleaning the nitrogen molecules on the molecular sieve. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Shown is a top view of the entire device;

[0018] Figure 2 Shown is a perspective view of the front half of the oxygen extraction mechanism;

[0019] Figure 3 Shown is a perspective view of the oxygen supply mechanism;

[0020] Figure 4 Shown is a side view of the entire device.

[0021] In the figure: 1. Support base; 2. Roller housing; 3. Isolation net; 4. Guide fan; 5. Guide pipe; 6. Flow pipe; 7. Compressor; 8. Screening isolation cylinder; 9. Control valve; 10. Cleaning valve; 11. Check valve; 12. Heating oxygen supply pipeline; 13. Preheating oxygen supply pipeline; 14. Cooling area; 15. Preheating area; 16. Heating area. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0023] Example

[0024] Figures 1-4 What is shown is a schematic diagram of the overall structure of a specific embodiment of the utility model. Figures 1-4 The oxygen-enriched sintering roller kiln comprises a supporting base 1, a roller shell 2, and an oxygen extraction mechanism and an oxygen supply mechanism installed on one side of the roller shell 2.

[0025] The oxygen extraction mechanism includes an isolation net 3, a guide fan 4, a guide pipe 5, a flow pipe 6, a compressor 7, and a screening isolation cylinder 8. The isolation net 3 is installed on one side of the guide fan 4, the guide fan 4 is installed on one side of the roller shell 2, and the guide pipe 5 is installed on the other side of the roller shell 2. The guide fan 4, the roller shell 2, and the guide pipe 5 are internally connected. Several guide pipes 5 are connected to the flow pipe 6 at the same time. The flow pipe 6 is plugged with the compressor 7, and the screening isolation cylinder 8 is installed on the side of the flow pipe 6 away from the compressor 7.

[0026] The oxygen supply mechanism includes a heating oxygen supply pipeline 12, a preheating oxygen supply pipeline 13, and a cooling place 14. The heating oxygen supply pipeline 12 and the preheating oxygen supply pipeline 13 are both connected to the cooling place 14. The heating oxygen supply pipeline 12 is connected to the heating place 16, and the preheating oxygen supply pipeline 13 is connected to the preheating place 15.

[0027] Among them, a cooling part 14 is provided between the guide fan 4 and the guide pipe 5. The cooling part 14 is located inside the roller housing 2. The flow pipe 6 is connected to the heating oxygen supply pipe 12 and the preheating oxygen supply pipe 13 at the same time, and a check valve 11 is provided in the middle of the flow pipe 6.

[0028] When the device is in use, first, under the operation of the guide fan 4, the outside air is filtered through the isolation net 3 and then circulated into the roller shell 2, and then the material inside the cooling area 14 is cooled by air. Under the guidance of the guide pipe 5, the cooled air flows into the guide pipe 5, and then under the guidance of the flow pipe 6, based on the compression transmission of the compressor 7, the compressed air flows into the sieve isolation cylinder 8. Under the isolation filtration of the molecular sieve in the sieve isolation cylinder 8, the nitrogen molecules in the air are isolated inside the sieve isolation cylinder 8, so that the oxygen with a higher concentration is supplied to the heating supply. The oxygen pipe 12 and the preheating oxygen supply pipe 13 circulate inside to achieve the effect of supplying oxygen to the preheating part 15 and the heating part 16 to assist combustion. At the same time, with the support of the oxygen supply from the cooling part 14, the normal and stable oxygen supply to the preheating part 15 and the heating part 16 is guaranteed. Under the limit guidance of the check valve 11, oxygen can only flow to one side to prevent the backflow of oxygen when it flows inside the cooling part 14. Therefore, under the oxygen extraction mechanism that purifies and reuses the oxygen in the cooling air, and with the support of the oxygen supply mechanism, the stability and energy-saving effect of the device during oxygen-rich operation are guaranteed.

[0029] Figure 4 There are several isolation nets 3, and the isolation nets 3 are used for air circulation isolation.

[0030] By isolating the isolation net 3, dust and impurities in the air can be isolated, ensuring its cleanliness during cooling use, as well as safety and cleanliness during isolation of oxygen in the air.

[0031] Figure 2 and Figure 3 In the embodiment, control valves 9 are provided on opposite sides of the screening isolation cylinder 8 , and at least two cleaning valves 10 are installed on the outside of the screening isolation cylinder 8 . The control valves 9 are used to control the flow of the flow pipe 6 .

[0032] The heating oxygen supply pipeline 12 and the preheating oxygen supply pipeline 13 are both provided with control valves 9 , and the two control valves 9 are installed on the horizontal sections of the heating oxygen supply pipeline 12 and the preheating oxygen supply pipeline 13 .

[0033] When a certain amount of nitrogen molecules accumulate on the molecular sieve inside the sieve isolation cylinder 8, close the control valves 9 on both sides of the flow tube 6 to stop the circulation of oxygen and air, then open the cleaning valve 10 on one side of the sieve isolation cylinder 8, connect the external cleaning liquid, and pour it into the inside of the sieve isolation cylinder 8, then open the cleaning valve 10 on the lower side of the sieve isolation cylinder 8, and discharge the cleaned solution to achieve the effect of cleaning the nitrogen molecules on the molecular sieve, ensuring its permeability during continuous use. At the same time, according to the position of the material movement inside the device, the control valves 9 on the preheating oxygen supply pipeline 13 and the heating oxygen supply pipeline 12 are rotated and controlled to ensure timely and stable internal oxygen supply.

[0034] Figure 3In the embodiment, the inner wall diameter of the preheating oxygen supply pipe 13 is smaller than the inner wall diameter of the heating oxygen supply pipe 12 , and the heating oxygen supply pipe 12 and the preheating oxygen supply pipe 13 are connected to the flow pipe 6 at the same position.

[0035] The connection between the cooling part 14 and the flow pipe 6 is located at the bend of the flow pipe 6 and between the check valve 11 and the control valve 9 .

[0036] By setting the internal specifications of the preheating oxygen supply pipe 13 to be smaller than the internal specifications of the heating oxygen supply pipe 12, and based on the consistency of the oxygen flow speed inside the heating oxygen supply pipe 12 and the preheating oxygen supply pipe 13, the amount of oxygen flowing to the bottom of the heating part 16 for combustion is greater than the amount of oxygen flowing to the bottom of the preheating part 15 for combustion at the same time, thereby ensuring that the preheating part 15 and the heating part 16 operate accurately and stably when the device is oxygen-enriched processing, and finally, with the combined use of the compressor 7 and the cooling part 14, the gas inside the pipe can flow to the combustion part, thereby generating a pressure difference, ensuring that the air flows accurately and efficiently in the flow guide pipe 5.

[0037] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same.

Claims

1. An oxygen-enriched sintering roller kiln, comprising a support base (1), a roller housing (2), and an oxygen extraction mechanism and an oxygen supply mechanism installed on one side of the roller housing (2), characterized in that: The oxygen extraction mechanism comprises an isolation net (3), a guide fan (4), a guide pipe (5), a flow pipe (6), a compressor (7), and a screening isolation cylinder (8); the isolation net (3) is installed on one side of the guide fan (4); the guide fan (4) is installed on one side of the roller housing (2); the guide pipe (5) is installed on the other side of the roller housing (2); the guide fan (4), the roller housing (2), and the guide pipe (5) are internally connected; a plurality of the guide pipes (5) are simultaneously connected to the flow pipe (6); the flow pipe (6) is plugged with a compressor (7); and the screening isolation cylinder (8) is installed on the side of the flow pipe (6) away from the compressor (7); The oxygen supply mechanism comprises a heating oxygen supply pipe (12), a preheating oxygen supply pipe (13), and a cooling part (14); the heating oxygen supply pipe (12) and the preheating oxygen supply pipe (13) are both connected to the cooling part (14); the heating oxygen supply pipe (12) is connected to the heating part (16); and the preheating oxygen supply pipe (13) is connected to the preheating part (15); A cooling area (14) is provided between the guide fan (4) and the guide pipe (5), and the cooling area (14) is located inside the roller housing (2). The flow pipe (6) is connected to the heating oxygen supply pipe (12) and the preheating oxygen supply pipe (13), and a check valve (11) is provided in the middle of the flow pipe (6).

2. The oxygen-enriched sintering roller kiln according to claim 1, characterized in that: There are a plurality of isolation nets (3), and the isolation nets (3) are used for air circulation isolation.

3. The oxygen-enriched sintering roller kiln according to claim 1, characterized in that: Control valves (9) are provided on opposite sides of the screening isolation cylinder (8), and at least two cleaning valves (10) are installed outside the screening isolation cylinder (8). The control valves (9) are used to control the flow of the flow pipe (6).

4. The oxygen-enriched sintering roller kiln according to claim 3, characterized in that: The control valve (9) is provided on both the heating oxygen supply pipeline (12) and the preheating oxygen supply pipeline (13), and the two control valves (9) are installed on the horizontal sections of the heating oxygen supply pipeline (12) and the preheating oxygen supply pipeline (13).

5. The oxygen-enriched sintering roller kiln according to claim 1, characterized in that: The inner wall diameter of the preheating oxygen supply pipe (13) is smaller than the inner wall diameter of the heating oxygen supply pipe (12), and the heating oxygen supply pipe (12) and the preheating oxygen supply pipe (13) are connected to the flow pipe (6) at the same position.

6. The oxygen-enriched sintering roller kiln according to claim 4, characterized in that: The connection point between the cooling part (14) and the flow pipe (6) is located at the bend of the flow pipe (6) and between the check valve (11) and the control valve (9).

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