Stepped utilization device for exhaust smoke waste heat of circular cooler

Abstract

The utility model relates to the technical field of sintering, in particular to an annular cooler exhaust smoke waste heat stepped utilization device which comprises an annular cooler body, and a first installation pipe, a second installation pipe and a third installation pipe are sequentially arranged on the top face of the annular cooler body from front to back. Bleeding valves are arranged on the outer surfaces of the first mounting pipe, the second mounting pipe and the third mounting pipe, an inclined plate is fixedly connected to the front surface of the circular cooler body, and a supporting plate is fixedly connected to the lower surface of the inclined plate; and the first connecting pipe is mounted on the upper surface of the bottom plate. According to the utility model, waste heat utilization and zero emission of the ring-cooling unorganized exhaust flue gas are realized through step-by-step utilization of waste heat; an annular cooling circulating fan is arranged to guarantee the hot air sintering effect; a blow-off valve and a switching valve are arranged to ensure stable operation of production; a first annular cooling heat-resisting air blower, a second annular cooling heat-resisting air blower and a third annular cooling heat-resisting air blower are adopted to guarantee the cooling effect under the hot air working condition.

Description

Technical Field

[0001] The utility model relates to the technical field of sintering, in particular to a step-by-step utilization device for exhaust gas waste heat of a ring cooler. Background Art

[0002] For a long time, the flue gas treatment of sintering ring coolers has been facing many difficulties. Traditional flue gas treatment methods have limitations, such as low treatment efficiency, high energy consumption, and large floor space. With the increasingly stringent environmental protection regulations and the increasing public awareness of environmental protection, waste gas treatment in the sintering production process has become a focus of attention. As an important equipment in the sintering process, the ring cooler will generate a large amount of flue gas during operation, which seriously pollutes the environment. The unorganized exhaust gas contains a lot of waste heat that cannot be effectively utilized, resulting in energy waste. Whether from the perspective of energy recovery, reducing fuel consumption, or reducing pollutant emissions, it is necessary to conduct in-depth treatment of unorganized exhaust gas from ring coolers.

[0003] At the same time, when the high-temperature flue gas is guided to the material surface of the sintering machine, the flue gas is transported unevenly, and there will be a large amount of impurities in the flue gas, so that when the flue gas is transported, the flue gas will adhere to the inner wall of the cylinder and needs to be processed in time. Therefore, it has become an urgent problem to be solved to improve and perfect the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide a device for step-by-step utilization of the waste heat from exhaust gas of a ring cooler, so as to solve the problem proposed in the above-mentioned background technology that a large amount of flue gas will be generated during the operation of the ring cooler, which seriously pollutes the environment, and the unorganized exhaust flue gas contains abundant waste heat that cannot be effectively utilized, resulting in energy waste; when the high-temperature flue gas is guided to the material surface of the sintering machine, the flue gas is transported unevenly, and there will be a large amount of impurities in the flue gas, so that the flue gas will adhere to the inner wall of the cylinder during transportation, which needs to be dealt with in time.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a ring cooler exhaust waste heat step utilization device, comprising a ring cooler body, the top surface of the ring cooler body is sequentially provided with a first mounting pipe, a second mounting pipe and a third mounting pipe from front to back, the outer surfaces of the first mounting pipe, the second mounting pipe and the third mounting pipe are all provided with a relief valve, the front surface of the ring cooler body is fixedly connected with an inclined plate, the lower surface of the inclined plate is fixedly connected with a support plate, and the right side surface of the support plate is provided with a bottom plate;

[0006] A first connecting pipe, the first connecting pipe is installed on the upper surface of the base plate, the top surface of the base plate is sequentially provided with a second connecting pipe and a third connecting pipe from front to back, the upper surface of the first connecting pipe is provided with a first ring-cooled heat-resistant blower, the top surface of the second connecting pipe is provided with a second ring-cooled heat-resistant blower, the top surface of the third connecting pipe is provided with a third ring-cooled heat-resistant blower, the top surfaces of the first ring-cooled heat-resistant blower, the second ring-cooled heat-resistant blower and the third ring-cooled heat-resistant blower are connected to the ring-cooled machine body through pipelines.

[0007] Preferably, the left side surface of the first mounting tube is connected to the ring cooling circulation fan through a pipeline, and the left side surface of the ring cooling circulation fan is provided with an air outlet duct.

[0008] Preferably, an air outlet cylinder is provided at one end of the air outlet pipe away from the ring cooling circulation fan, and a filter ring is provided inside the air outlet cylinder.

[0009] Preferably, a connecting frame is fixedly connected to the front surface of the air outlet tube, and a telescopic rod is provided on the left side surface of the connecting frame.

[0010] Preferably, a connecting rod is provided on the back side of the telescopic rod, and a stabilizing plate is fixedly connected to the right side surface of the connecting rod.

[0011] Preferably, an electric push rod is fixedly connected to the top surface of the stabilizing plate, a motor body is disposed on the top surface of the electric push rod, a rotating ring is disposed at the output end of the motor body, and a convex ring is disposed on the outer surface of the rotating ring.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The ring cooler exhaust waste heat step utilization device is provided with a ring cooler body, a first installation pipe, a second installation pipe, a third installation pipe, an inclined plate, a support plate, a bottom plate, a first connecting pipe, a second connecting pipe, a third connecting pipe, a first ring cooler heat-resistant blower, a second ring cooler heat-resistant blower, a third ring cooler heat-resistant blower, a ring cooler circulating fan and an air outlet pipe. When in use, the ring cooler body is first covered with 100-150℃ smoke, which is then led to the second ring cooler through the hot air duct. The inlet of the heat-resistant blower retains the existing five-stage exhaust outlet, and a exhaust valve is added on the outer surface of the third installation pipe. A cold and hot air switching valve is set at the inlet of the second ring-cooled heat-resistant blower; the 150-200℃ flue gas on the upper cover of the ring cooler body is led to the inlet of the first ring-cooled heat-resistant blower through the hot air duct, and the existing four-stage exhaust outlet is retained. At the same time, a exhaust valve is added on the outer surface of the second installation pipe, and a cold and hot air switching valve is set at the inlet of the first ring-cooled heat-resistant blower; the upper cover of the ring cooler body 2 50-300℃ flue gas is led to the sintering machine material surface through pipelines and ring cooling circulation fans to implement hot air sintering. This process belongs to the scope of sintering ring cooling machine flue gas treatment. It mainly realizes zero external exhaust of unorganized external exhaust gas of sintering ring cooling machine through process flow design, and can also improve the quality of sintered ore, reduce energy consumption of sintering process, and reduce carbon emissions. The implementation method is to use the ring cooling flue gas step utilization process to realize step-by-step utilization of external exhaust flue gas and waste heat. Finally, high-temperature flue gas is led to the sintering machine material surface to implement hot air sintering, which can improve the quality of sintered ore products, reduce fuel coke consumption, and thus reduce carbon emissions. In this scheme description, the waste heat utilization and zero external exhaust of unorganized external exhaust flue gas of ring cooling are realized through the step-by-step utilization of waste heat; a ring cooling circulation fan is set to ensure the hot air sintering effect; a vent valve and a switching valve are set to ensure stable production operation; the first ring cooling heat-resistant blower, the second ring cooling heat-resistant blower and the third ring cooling heat-resistant blower are used to ensure the cooling effect under hot air conditions.

[0014] 2. The ring cooler exhaust waste heat step utilization device is equipped with an air outlet pipe, a filter ring, a connecting frame, a telescopic rod, a connecting rod, a stabilizing plate, an electric push rod, a motor body, a rotating ring and a convex ring. When in use, the high-temperature flue gas is first discharged through the air outlet pipe, and the impurities in the flue gas can be filtered and blocked by the filter ring. The connecting rod can be driven to extend and retract by the telescopic rod. When the filter ring needs to be cleaned, the stabilizing plate is moved to the left surface of the filter ring by the telescopic rod, and then the motor body is lifted and lowered by the electric push rod, and the rotating ring is moved to the left surface of the filter ring. Then the motor body is started, and the rotating ring can be driven to rotate by the motor body, so that the filter ring is beaten by the rotation of the rotating ring and the convex ring, so that the impurities on the left side of the filter ring will fall off, and the impurities in the internal gap of the filter ring will also fall off, and the overall cleaning effect is good. When not cleaning, the motor body is driven downward by the electric push rod, which reflects the functionality of the design. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1It is a three-dimensional schematic diagram of the structure of the utility model;

[0016] Figure 2 It is a three-dimensional schematic diagram of the structure of the connecting frame and the cooling circulation fan of the utility model;

[0017] Figure 3 This is a schematic diagram of the disassembly of the filter ring and the connecting frame structure of the utility model;

[0018] Figure 4 It is a three-dimensional schematic diagram of the telescopic rod and the stabilizing plate structure of the utility model.

[0019] In the figure: 1. annular cooler body; 2. first mounting tube; 3. second mounting tube; 4. third mounting tube; 5. inclined plate; 6. support plate; 7. bottom plate; 8. first connecting tube; 9. second connecting tube; 10. third connecting tube; 11. first annular cool heat-resistant blower; 12. second annular cool heat-resistant blower; 13. third annular cool heat-resistant blower; 14. annular cool circulation fan; 15. air outlet pipe; 16. air outlet tube; 17. filter ring; 18. connecting frame; 19. telescopic rod; 20. connecting rod; 21. stabilizing plate; 22. electric push rod; 23. motor body; 24. rotating ring; 25. convex ring. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-4 , an embodiment provided by the utility model:

[0022] A ring cooler exhaust waste heat step utilization device, the ring cooler body 1, the first ring cooler heat-resistant blower 11, the second ring cooler heat-resistant blower 12, the third ring cooler heat-resistant blower 13, the telescopic rod 19, the electric push rod 22 and the motor body 23 used in the present application are all products that can be directly purchased on the market, and their principles and connection methods are all existing technologies well known to those skilled in the art, so they will not be repeated here, including a ring cooler body 1, the top surface of the ring cooler body 1 is sequentially provided with a first mounting tube 2, a second mounting tube 3 and a third mounting tube 4 from front to back, the first mounting tube 2, the second mounting tube 3 and The outer surface of the third mounting pipe 4 is provided with a relief valve, the front surface of the ring cooling machine body 1 is fixedly connected with an inclined plate 5, the lower surface of the inclined plate 5 is fixedly connected with a support plate 6, the right surface of the support plate 6 is provided with a bottom plate 7, the left surface of the first mounting pipe 2 is connected with the ring cooling circulation fan 14 through a pipeline, the left surface of the ring cooling circulation fan 14 is provided with an air outlet pipe 15, the end of the air outlet pipe 15 away from the ring cooling circulation fan 14 is provided with an air outlet cylinder 16, the interior of the air outlet cylinder 16 is provided with a filter ring 17, the front surface of the air outlet cylinder 16 is fixedly connected with a connecting frame 18, the left surface of the connecting frame 18 A telescopic rod 19 is provided, a connecting rod 20 is provided on the back of the telescopic rod 19, a stabilizing plate 21 is fixedly connected to the right surface of the connecting rod 20, an electric push rod 22 is fixedly connected to the top surface of the stabilizing plate 21, a motor body 23 is provided on the top surface of the electric push rod 22, a rotating ring 24 is provided at the output end of the motor body 23, a convex ring 25 is provided on the outer surface of the rotating ring 24, high-temperature flue gas is discharged through the air outlet 16, impurities in the flue gas can be filtered and blocked by the filter ring 17, the telescopic rod 19 can drive the connecting rod 20 to telescope, and when it is necessary to clean the filter ring 17 , the stabilizing plate 21 is moved to the left surface of the filter ring 17 by the telescopic rod 19, and then the motor body 23 is lifted and lowered by the electric push rod 22, and the rotating ring 24 is moved to the left surface of the filter ring 17, and then the motor body 23 is started, and the rotating ring 24 can be driven to rotate by the motor body 23, so that the filter ring 17 is beaten by the rotation of the rotating ring 24 and the convex ring 25, so that the impurities on the left side of the filter ring 17 will fall, and the impurities in the internal gap of the filter ring 17 will also fall, and the overall cleaning effect is good. When not cleaning, the motor body 23 is driven by the electric push rod 22 to move downward;

[0023] The first connecting pipe 8 is installed on the upper surface of the bottom plate 7, and the top surface of the bottom plate 7 is sequentially provided with the second connecting pipe 9 and the third connecting pipe 10 from front to back, the upper surface of the first connecting pipe 8 is provided with the first ring-cooled heat-resistant blower 11, the top surface of the second connecting pipe 9 is provided with the second ring-cooled heat-resistant blower 12, and the top surface of the third connecting pipe 10 is provided with the third ring-cooled heat-resistant blower 13, the top surfaces of the first ring-cooled heat-resistant blower 11, the second ring-cooled heat-resistant blower 12 and the third ring-cooled heat-resistant blower 13 are connected to the ring-cooling machine body 1 through pipelines, the first installation pipe 2 is connected to the ring-cooling circulation fan 14 through pipelines, and the second installation pipe 3 is connected to the ring-cooling circulation fan 14 through pipelines. The first connecting pipe 8 and the second connecting pipe 9 are provided with cold air valves and hot air valves from top to bottom in sequence. The flue gas of 100-150°C is covered on the main body 1 of the ring cooler, and is led to the inlet of the second ring cooler 12 through the hot air duct. The existing five-stage venting outlet is retained. By adding a venting valve on the outer surface of the third installing pipe 4, a cold and hot air switching valve is provided at the inlet of the second ring cooler 12; the flue gas of 150-200°C is covered on the main body 1 of the ring cooler, and is led to the inlet of the first ring cooler 11 through the hot air duct. , retain the existing four-stage venting outlet, and at the same time increase the venting valve on the outer surface of the second installation pipe 3, and set the cold and hot air switching valve at the inlet of the first ring cooling heat-resistant blower 11; the 250-300℃ flue gas is covered on the ring cooling machine body 1, and is led to the sintering machine material surface through the pipeline and the ring cooling circulation fan 14 to implement hot air sintering. This process belongs to the scope of flue gas treatment of sintering ring cooling machine. It mainly realizes zero external exhaust of unorganized external exhaust gas of sintering ring cooling machine through process flow design, and can also improve the quality of sintered ore, reduce energy consumption of sintering process, and reduce carbon emissions. The implementation method is to realize the cascade utilization of external exhaust gas and waste heat through the ring cooling flue gas step utilization process, and finally lead the high-temperature flue gas to The sintering machine material surface can implement hot air sintering, which can improve the quality of sintered ore products, reduce fuel coke consumption, and thus reduce carbon emissions. In the scheme description, the waste heat of unorganized exhaust flue gas is utilized in a step-by-step manner to achieve ring cooling and zero exhaust; a ring cooling circulation fan 14 is set to ensure the hot air sintering effect; a vent valve and a switching valve are set to ensure stable production operation; the first ring cooling heat-resistant blower 11, the second ring cooling heat-resistant blower 12 and the third ring cooling heat-resistant blower 13 are used to ensure the cooling effect under hot air conditions. The top of the ring cooler 1 is provided with three, four and five sections, and the three, four and five sections correspond to the first mounting tube 2, the second mounting tube 3 and the third mounting tube 4, respectively.

[0024] Working principle: When the staff uses this device, first connect the device to an external power supply to provide power support for the device. First, the 100-150℃ flue gas is covered on the ring cooler body 1, and is led to the inlet of the second ring cool heat-resistant blower 12 through the hot air duct, and the existing five-stage discharge outlet is retained. By adding a discharge valve on the outer surface of the third installation pipe 4, a cold and hot air switching valve is set at the inlet of the second ring cool heat-resistant blower 12; the 150-200℃ flue gas is covered on the ring cooler body 1, and is led to the inlet of the first ring cool heat-resistant blower 11 through the hot air duct, and the existing four-stage discharge outlet is retained. At the same time, a discharge valve is added to the outer surface of the second installation pipe 3, and a cold and hot air switching valve is set at the inlet of the first ring cool heat-resistant blower 11; the 250-300℃ flue gas is covered on the ring cooler body 1, and is led to the sintering machine material surface through the pipeline and the ring cool circulation fan 14 to implement hot air sintering;

[0025] First, the high-temperature flue gas is discharged through the air outlet 16, and the impurities in the flue gas can be filtered and blocked by the filter ring 17. The telescopic rod 19 can drive the connecting rod 20 to be telescopic. When the filter ring 17 needs to be cleaned, the stabilizing plate 21 is moved to the left surface of the filter ring 17 by the telescopic rod 19, and then the motor body 23 is lifted and lowered by the electric push rod 22, and the rotating ring 24 is moved to the left surface of the filter ring 17, and then the motor body 23 is started. The rotating ring 24 can be driven to rotate by the motor body 23, so that the filter ring 17 is beaten by the rotation of the rotating ring 24 and the convex ring 25, so that the impurities on the left side of the filter ring 17 will fall off, and the impurities in the internal gap of the filter ring 17 will also fall off, and the overall cleaning effect is good. The above is all the working principles of the utility model.

[0026] The above description is only a preferred embodiment of the utility model and does not limit the utility model in any form. Any ordinary technician in the industry can smoothly implement the utility model as shown in the drawings of the specification and described above. However, any equivalent changes, modifications and evolutions made by technicians familiar with the profession without departing from the scope of the technical solution of the utility model using the technical content disclosed above are all equivalent embodiments of the utility model. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the utility model are still within the protection scope of the technical solution of the utility model.

Claims

1. A device for utilizing waste heat from exhaust gas of a ring cooler in a stepped manner, comprising a ring cooler body (1), wherein a first mounting tube (2), a second mounting tube (3) and a third mounting tube (4) are sequentially arranged on the top surface of the ring cooler body (1) from front to back, and characterized in that: The outer surfaces of the first mounting tube (2), the second mounting tube (3) and the third mounting tube (4) are all provided with relief valves; the front surface of the ring cooler body (1) is fixedly connected with an inclined plate (5); the lower surface of the inclined plate (5) is fixedly connected with a support plate (6); and the right side surface of the support plate (6) is provided with a bottom plate (7); A first connecting pipe (8), wherein the first connecting pipe (8) is installed on the upper surface of a base plate (7), and the top surface of the base plate (7) is provided with a second connecting pipe (9) and a third connecting pipe (10) in sequence from front to back, and the upper surface of the first connecting pipe (8) is provided with a first ring-cooled heat-resistant blower (11), and the top surface of the second connecting pipe (9) is provided with a second ring-cooled heat-resistant blower (12), and the top surface of the third connecting pipe (10) is provided with a third ring-cooled heat-resistant blower (13), and the top surfaces of the first ring-cooled heat-resistant blower (11), the second ring-cooled heat-resistant blower (12) and the third ring-cooled heat-resistant blower (13) are connected to the ring-cooled machine body (1) through pipelines.

2. The device for stepwise utilization of exhaust waste heat from an annular cooler according to claim 1 is characterized in that: The left side surface of the first installation tube (2) is connected to the ring cooling circulation fan (14) through a pipeline, and the left side surface of the ring cooling circulation fan (14) is provided with an air outlet pipe (15).

3. The device for stepwise utilization of waste heat from exhaust gas of an annular cooler according to claim 2 is characterized in that: An air outlet tube (16) is provided at one end of the air outlet pipe (15) away from the cooling circulation fan (14), and a filter ring (17) is provided inside the air outlet tube (16).

4. The device for stepwise utilization of exhaust waste heat from an annular cooler according to claim 3 is characterized in that: A connecting frame (18) is fixedly connected to the front surface of the air outlet cylinder (16), and a telescopic rod (19) is provided on the left side surface of the connecting frame (18).

5. The device for stepwise utilization of exhaust waste heat from an annular cooler according to claim 4 is characterized in that: A connecting rod (20) is provided on the back of the telescopic rod (19), and a stabilizing plate (21) is fixedly connected to the right side surface of the connecting rod (20).

6. The device for stepwise utilization of exhaust heat from an annular cooler according to claim 5 is characterized in that: The top surface of the stabilizing plate (21) is fixedly connected to an electric push rod (22), the top surface of the electric push rod (22) is provided with a motor body (23), the output end of the motor body (23) is provided with a rotating ring (24), and the outer surface of the rotating ring (24) is provided with a convex ring (25).

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