A water circulation system for a steel strip reduction furnace

Abstract

The utility model relates to a steel belt reduction furnace, specifically a water circulation system of a steel belt reduction furnace, which includes a flue of the reduction furnace, a spraying device is arranged at the lower side of the flue, a cleaning device is arranged at the furnace tail of the reduction furnace, and a water supply tank is arranged at the upper side of the reduction furnace. The water in the water supply tank is transported to the spraying device, and the flue gas flowing from the flue into the spraying device is sprayed; the water in the water supply tank is transported to the cleaning device, and the transmission steel belt passing through the furnace tail is cleaned; the sprayed water and the cleaned water are pumped to the water supply tank after sedimentation or filtration. The cleaning device and the spraying device of the utility model are uniformly supplied with water through the water supply tank, and there is no need to build two sets of water supply systems, which is not only simple to operate, but also saves construction costs; and the cleaned water and the sprayed water are both refluxed to the water supply tank after sedimentation or filtration, which greatly saves water resources.

Description

Technical Field

[0001] The utility model relates to a steel belt type reduction furnace, in particular to a water circulation system of the steel belt reduction furnace. Background Art

[0002] The steel belt reduction furnace is a powder metallurgy equipment that uses a transmission steel belt as a powder carrier to reduce materials in a reducing atmosphere. As the raw materials undergo a high-temperature reduction reaction in the reduction furnace, smoke will be generated in the furnace. During the emission of the smoke, spraying is generally used to reduce dust and remove impurities. At the same time, a portion of the metal powder generated by the reaction will remain on the transmission steel belt after being collected by the transmission steel belt. Water is required when the residual powder is washed. At present, both spraying dust reduction and washing the transmission steel belt with water are supplied with water through their respective water storage tanks, and drainage is also carried out separately, which not only causes a waste of water resources, but also increases the cost of water treatment. Utility Model Content

[0003] In view of the above technical problems, the utility model provides a water circulation system for a steel strip reduction furnace which can save water resources and reduce costs.

[0004] The technical solution adopted by the utility model to solve the above-mentioned technical problems is: a water circulation system of a steel strip reduction furnace, including a flue of the reduction furnace, a spraying device is arranged on the lower side of the flue, a cleaning device is arranged at the furnace tail of the reduction furnace, and a water supply tank is arranged on the upper side of the reduction furnace. The water in the water supply tank is transported to the spraying device, and the flue gas flowing into the spraying device from the flue is sprayed; the water in the water supply tank is transported to the cleaning device, and the transmission steel belt passing through the furnace tail is cleaned; the water after spraying and the water after cleaning are pumped to the water supply tank after sedimentation or filtration.

[0005] Preferably, the spray device includes a spray pipe connected to the lower side of the flue and a water pool connected to the lower side of the spray pipe. The water in the water supply tank is transported to the spray pipe. The flue gas flowing into the spray pipe from the flue is sprayed with water injected from the spray pipe. Impurities in the flue gas and the sprayed water flow into the water pool. The water in the water pool is pumped to the water supply tank after sedimentation.

[0006] Preferably, a plurality of nozzles are axially arranged on the spray pipe, and the water in the water supply tank is transported to the plurality of nozzles, and the plurality of nozzles spray water toward the flue gas flowing into the spray pipe.

[0007] Preferably, a drain pipe is connected to the upper part of the water pool, and the water in the upper part of the water pool is pumped to the water supply tank through the drain pipe.

[0008] Preferably, the cleaning device includes a cleaning tank and a bracket arranged on the cleaning tank, the bracket is provided with a cleaning pipe, the water in the water supply tank is transported to the cleaning pipe, the water flowing out of the cleaning pipe cleans the transmission steel belt, the cleaned water flows into the cleaning tank, and the water in the cleaning tank is pumped to the water supply tank after sedimentation.

[0009] Preferably, a water pipe is connected to the upper portion of the cleaning tank, and water in the upper portion of the cleaning tank is pumped to the water supply tank through the water pipe.

[0010] Preferably, the drainage pipe and the water pipe both transport water to a transfer tank, and the side wall of the transfer tank is connected to a return pipe through a filter screen. The water in the transfer tank is filtered by the filter screen and then pumped back to the water supply tank through the return pipe.

[0011] Preferably, the cleaning pipe is provided with a plurality of through holes, and the water in the cleaning pipe flows from the plurality of through holes to the transmission steel belt.

[0012] From the above technical scheme, it can be seen that the cleaning device and the spraying device of the utility model are uniformly supplied with water through the water supply tank, and there is no need to build two water supply systems. It is not only simple to operate but also saves construction costs; and the water after cleaning and the water after spraying are returned to the water supply tank after sedimentation or filtration. On the one hand, it ensures that the returned water is relatively clean, and on the other hand, it realizes the recycling of water, which greatly saves water resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the utility model. DETAILED DESCRIPTION

[0014] Combine the following Figure 1 The present invention is described in detail. The exemplary embodiments and descriptions of the present invention are used to explain the present invention but are not intended to limit the present invention.

[0015] like Figure 1 The utility model provides a water circulation system for a steel strip reduction furnace, which comprises a flue 11 of a reduction furnace 1, a spray device 2 is arranged at the lower side of the flue, a cleaning device 3 is arranged at the furnace tail of the reduction furnace, and a water supply tank 4 is arranged at the upper side of the reduction furnace. The water in the water supply tank is transported to the spray device, and the flue gas flowing into the spray device from the flue is sprayed; the water in the water supply tank is transported to the cleaning device, and the transmission steel belt 5 passing through the furnace tail is cleaned; the water after spraying and the water after cleaning are pumped to the water supply tank after sedimentation or filtration, thereby realizing the recycling of water and saving costs.

[0016] Specifically, the spray device 2 includes a spray pipe 21 connected to the lower side of the flue and a water pool 22 connected to the lower side of the spray pipe. The water in the water supply tank is transported to the spray pipe. After the flue gas flowing into the spray pipe from the flue is sprayed by the water sprayed by the spray pipe, the impurities in the flue gas and the sprayed water flow into the water pool. The water in the water pool is pumped to the water supply tank after sedimentation. Thus, dust and impurities in the flue gas are removed through the spray pipe and the water pool, making the discharged gas cleaner, and the discharged water is recycled after sedimentation, saving water resources.

[0017] Preferably, a plurality of nozzles 23 are provided axially on the spray pipe, and the water in the water supply tank is transported to the nozzles, which spray water to the flue gas flowing into the spray pipe, and the spray pressure is increased by the nozzles, so as to further improve the dust reduction and impurity removal effect. A drainage pipe 24 is connected to the upper part of the water pool, and solid impurities will settle in the lower part of the water pool under the action of gravity, thereby ensuring that the water in the upper part of the water pool contains less impurities, and then the water in the upper part of the water pool is pumped to the water supply tank through the drainage pipe, so as to realize the clean recycling of water.

[0018] The cleaning device 3 of the utility model includes a cleaning tank 31 and a bracket 32 ​​arranged on the cleaning tank, and a cleaning pipe 33 is arranged on the bracket. The water in the water supply tank is transported to the cleaning pipe, and the water flowing out of the cleaning pipe cleans the transmission steel belt, and a brush can be used to remove powder at the same time; the cleaned water flows into the cleaning tank, and the water in the cleaning tank is pumped to the water supply tank after sedimentation. Thus, the transmission steel belt is washed with water through the cleaning pipe, ensuring the cleanliness of the transmission steel belt. And the recycling of the water after cleaning is realized, further reducing the waste of water resources. Preferably, a plurality of through holes are opened on the cleaning pipe, and the water in the cleaning pipe flows from the plurality of through holes to the transmission steel belt, thereby improving the efficiency and effect of cleaning.

[0019] During the implementation process, the upper part of the cleaning tank is connected with a water pipe 34, and the cleaned powder settles to the bottom of the cleaning tank under the action of gravity, so that the residual powder can be collected at the bottom; and the water in the upper part of the cleaning tank is ensured to be relatively clean, and then the water in the upper part of the cleaning tank is pumped to the water supply tank through the water pipe, realizing the clean recycling of water resources. The drainage pipe and the water pipe of the utility model both transport water to the transfer pool 6, and the side wall of the transfer pool is connected to the return pipe 8 through the filter screen 7. The water in the transfer pool is filtered by the filter screen and then pumped back to the water supply tank through the return pipe; thereby realizing the centralized recycling of water and saving costs; and the use of the filter screen for centralized filtration further improves the cleanliness of the water. The entire system of the utility model first uses gravity to precipitate the recycled water, and then further filters it through the filter screen, which greatly removes impurities in the water, greatly improves the cleanliness of the water, and further realizes the clean recycling of water.

Claims

1. A water circulation system for a steel strip reduction furnace, comprising a flue of the reduction furnace, characterized in that: A spray device is provided at the lower side of the flue, a cleaning device is provided at the tail of the reduction furnace, and a water supply tank is provided at the upper side of the reduction furnace. The water in the water supply tank is transported to the spray device, and the flue gas flowing into the spray device from the flue is sprayed; the water in the water supply tank is transported to the cleaning device, and the transmission steel belt passing through the tail of the furnace is cleaned; the water after spraying and the water after cleaning are pumped to the water supply tank after sedimentation or filtration; the spray device includes a spray pipe connected to the lower side of the flue and a water pool connected to the lower side of the spray pipe. The water in the water supply tank is transported to the spray pipe, and the flue gas flowing into the spray pipe from the flue is sprayed by the water sprayed from the spray pipe, and the impurities in the flue gas and the water after spraying flow into the water pool, and the water in the pool is pumped to the water pool after sedimentation. to the water supply tank; a drain pipe is connected to the upper part of the water tank, and the water in the upper part of the water tank is pumped to the water supply tank through the drain pipe; the cleaning device includes a cleaning tank and a bracket arranged on the cleaning tank, and a cleaning pipe is arranged on the bracket. The water in the water supply tank is transported to the cleaning pipe, and the water flowing out of the cleaning pipe cleans the transmission steel belt. The cleaned water flows into the cleaning tank, and the water in the cleaning tank is pumped to the water supply tank after sedimentation; a water delivery pipe is connected to the upper part of the cleaning tank, and the water in the upper part of the cleaning tank is pumped to the water supply tank through the water delivery pipe; the drain pipe and the water delivery pipe both transport water to the transfer tank, and the side wall of the transfer tank is connected to a return pipe through a filter screen, and the water in the transfer tank is filtered by the filter screen and then pumped back to the water supply tank through the return pipe.

2. The water circulation system of the steel strip reduction furnace according to claim 1, characterized in that: A plurality of nozzles are axially arranged on the spray pipe, and the water in the water supply tank is transported to the plurality of nozzles, and the plurality of nozzles spray water toward the smoke flowing into the spray pipe.

3. The water circulation system of the steel strip reduction furnace according to claim 1, characterized in that: The cleaning pipe is provided with a plurality of through holes, and the water in the cleaning pipe flows from the plurality of through holes to the transmission steel belt.

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