Drainage recycling device for blast furnace top water cooling station and hydraulic station

Abstract

The utility model relates to a drainage recycling device for a blast furnace top water cooling station and a hydraulic station. The drainage recycling device comprises a pump station, a water tank, a water pump, a filter, a valve and a cooling tower, the water tank, the water pump and the filter are respectively arranged in the pump station; one side of the water tank is connected with a water pump inlet through a pipeline and a valve; the water pump outlet is connected with the filter inlet through a pipeline and a valve; a pipeline and a valve are arranged at an outlet of the filter, and the pipeline is connected with inlets of self-cooling circulating systems of the furnace top water cooling station and the hydraulic station in parallel; outlets of self-cooling circulation systems of the furnace top water cooling station and the hydraulic station are connected with an inlet of the cooling tower through pipelines; the cooling tower is arranged on the top of the pump station, and an outlet is connected with the top of the water tank through a pipeline. By installing the water pump, the cooling tower, the filter, the water tank, the valve, the electric control system and the like, drained water of the furnace top water cooling station and the hydraulic station is recycled, the water consumption index can be reduced, and meanwhile the requirement for cooling of furnace top equipment is met.

Description

Technical Field

[0001] The utility model relates to the technical field of ironmaking equipment, in particular to a drainage recycling device for a blast furnace top water cooling station and a hydraulic station. Background Art

[0002] In the blast furnace production process, the furnace top water cooling station and hydraulic station are indispensable and important equipment. The water cooling station is mainly responsible for cooling the blast furnace gear box, and the hydraulic station is mainly responsible for cooling the hydraulic system of the furnace top mechanical equipment. Under normal production conditions, plate heat exchangers need to be installed on the above equipment for heat exchange. The water quality of the cooling water remains basically unchanged, and the water temperature only rises by 1-3°C. Direct discharge will undoubtedly cause a waste of water resources. Summary of the invention

[0003] In view of the above problems, the purpose of the utility model is to provide a blast furnace top water cooling station and hydraulic station drainage recycling device, which can recycle the drainage of the top water cooling station and the hydraulic station, thereby reducing water consumption indicators.

[0004] The technical solution adopted by the utility model is as follows:

[0005] The utility model proposes a drainage recycling device for a blast furnace top water cooling station and a hydraulic station, comprising a pump station, a water tank, a water pump, a filter, a valve and a cooling tower; the water tank, the water pump and the filter are respectively installed inside the pump station; one side of the water tank is connected to the water pump inlet through a pipeline and a valve; the water pump outlet is connected to the filter inlet through a pipeline and a valve; the filter outlet is provided with a pipeline and a valve, and the pipeline is connected in parallel with the inlet of the self-cooling circulation system of the furnace top water cooling station and the hydraulic station; the outlet of the self-cooling circulation system of the furnace top water cooling station and the hydraulic station is connected to the inlet of the cooling tower through a pipeline; the cooling tower is arranged on the top of the pump station, and the outlet is connected to the top of the water tank through a pipeline.

[0006] Preferably, one side of the water tank is connected to two water pumps via two sets of pipelines and valves, respectively, and the outlets of the two water pumps are connected to the filter inlet via pipelines and valves, respectively.

[0007] Preferably, a water supply pipeline and a valve are connected to the bottom of the water tank.

[0008] Preferably, a group of valves are respectively added to the inlet and outlet of the cooling circulation system of the furnace top water cooling station and the hydraulic station.

[0009] Preferably, the inlet and outlet of the cooling tower are respectively provided with valves.

[0010] Preferably, the outlets of the self-cooling circulation systems of the furnace top water cooling station and the hydraulic station are directly connected to the top of the water tank via an additional set of pipelines and valves.

[0011] Preferably, the filter is a self-cleaning filter with a filtration accuracy of 100-200 μm, and can be automatically cleaned according to the pressure difference before and after the filter.

[0012] Preferably, water temperature, water volume and water pressure instruments are provided on the pipeline between the filter outlet and the inlet of the furnace top water cooling station and the hydraulic station's own cooling circulation system.

[0013] Preferably, the outlet pressure of the water pump is controlled at 1.2-1.5 MPa, and the flow rate is controlled at 60-100 m 3 / h, the water temperature difference is controlled at 1-3℃.

[0014] Preferably, the flow rate of the cooling tower is controlled at 110-130m 3 / h.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] The utility model recycles the drainage of the furnace top water cooling station and the hydraulic station by installing water pumps, cooling towers, filters, water tanks, valves, electronic control systems, etc. according to the on-site process operation conditions, which not only reduces the water consumption index, but also meets the cooling needs of the furnace top equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0018] Among them, the figure markings are: 1-pump station; 2-water tank; 3-water pump; 4-filter; 5-valve; 6-cooling tower; 7-instrument. DETAILED DESCRIPTION

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] It should be noted that, in the description of the present invention, the terms "upper", "lower", "top", "bottom", "one side", "the other side", "left", "right", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not mean that the device or element must have a specific orientation, be constructed and operated in a specific orientation.

[0021] See attached Figure 1The specific structure of an embodiment of a blast furnace top water cooling station and hydraulic station drainage recycling device proposed by the utility model is given. The device includes a pump station 1, a water tank 2, a water pump 3, a filter 4, a valve 5 and a cooling tower 6.

[0022] The pump station can be newly built in an empty area of ​​the furnace, and the water tank 2, water pump 3 and filter 4 are respectively installed inside the pump station 1; one side of the water tank 2 is connected to the inlet of the water pump 3 through a pipeline and a valve 5, and the water tank liquid level and the water tank water replenishment valve are interlocked and controlled, and high and low liquid levels are set to control the opening of the water replenishment valve. In this embodiment, the bottom of the water tank 2 is connected with a water replenishment pipeline and a valve 5; the outlet of the water pump 3 is connected to the inlet of the filter 4 through a pipeline and a valve 5.

[0023] In this embodiment, a group of valves 5 are respectively added to the inlet and outlet of the self-cooling circulation system of the furnace top water cooling station and the hydraulic station, and the outlet of the filter 4 is provided with a pipeline and a valve 5, and the other end of the pipeline is connected in parallel with the inlet valve 5 of the self-cooling circulation system of the furnace top water cooling station and the hydraulic station.

[0024] The filter 4 is a self-cleaning filter with a filtration accuracy of 100-200 μm, and can be automatically cleaned according to the pressure difference before and after the filter. The pipeline between the outlet of the filter 4 and the inlet of the self-cooling circulation system of the furnace top water cooling station and the hydraulic station is provided with an instrument 7 for detecting water temperature, water volume and water pressure. After measuring the data, it is connected to the computer in the main control room through the electronic control system.

[0025] The outlet valve 5 of the self-cooling circulation system of the furnace top water cooling station and the hydraulic station is connected to the inlet of the cooling tower 6 through a set of pipelines. In this embodiment, the outlet valve 5 of the self-cooling circulation system of the furnace top water cooling station and the hydraulic station is also directly connected to the top of the water tank 2 through a set of pipelines and valves 5. The cooling tower 6 is set at the top of the pump station 1. When the temperature is low in winter, a bypass pipeline can be opened to reduce the power consumption of the cooling tower 6, and its outlet is connected to the top of the water tank 2 through a pipeline. In this embodiment, a set of valves 5 are respectively set at the inlet and outlet of the cooling tower 6, and the flow rate of the cooling tower is controlled at 110-130m 3 / h.

[0026] In this embodiment, one side of the water tank 2 is connected to two water pumps 3 through two sets of pipelines and valves 5, and the outlets of the two water pumps 3 are connected to the inlet of the filter 4 through pipelines and valves 5. One of the two water pumps 3 is working and the other is standby, and the two water pumps 3 are interlocked. When one water pump 3 fails and stops, the other water pump 3 automatically starts. The outlet pressure of the water pump 3 is controlled at 1.2-1.5mpa, and the flow rate is controlled at 60-100m 3 / h, the water temperature difference is controlled at 1-3℃.

[0027] During the first operation, the water tank 2 is first filled with water, which is pressurized by the water pump 3 and then passes through the automatic backwash filter 4 to the cooling equipment of the water cooling station and the hydraulic station. Subsequently, it is cooled by the cooling tower 6 and then returns to the water tank 2, thereby realizing the recycling of cooling water.

[0028] Matters not described in detail in this utility model are known technologies.

[0029] The embodiments described above are merely descriptions of preferred implementation modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should fall within the protection scope determined by the claims of the present invention.

Claims

1. A blast furnace top water cooling station and hydraulic station drainage recycling device, characterized in that: The device comprises a pump station, a water tank, a water pump, a filter, a valve and a cooling tower; the water tank, the water pump and the filter are respectively installed inside the pump station; one side of the water tank is connected to the water pump inlet through a pipeline and a valve; the water pump outlet is connected to the filter inlet through a pipeline and a valve; the filter outlet is provided with a pipeline and a valve, and the pipeline and the inlet of the self-cooling circulation system of the furnace top water cooling station and the hydraulic station are connected in parallel; the outlet of the self-cooling circulation system of the furnace top water cooling station and the hydraulic station is connected to the inlet of the cooling tower through a pipeline; the cooling tower is arranged on the top of the pump station, and the outlet is connected to the top of the water tank through a pipeline.

2. A blast furnace top water cooling station and hydraulic station drainage recycling device according to claim 1, characterized in that: One side of the water tank is connected to two water pumps through two groups of pipelines and valves, and the outlets of the two water pumps are connected to the inlet of the filter through pipelines and valves.

3. A blast furnace top water cooling station and hydraulic station drainage recycling device according to claim 1, characterized in that: The bottom of the water tank is connected with a water supply pipeline and a valve.

4. A blast furnace top water cooling station and hydraulic station drainage recycling device according to claim 1, characterized in that: A set of valves are added to the inlet and outlet of the cooling circulation system of the furnace top water cooling station and the hydraulic station respectively.

5. The blast furnace top water cooling station and hydraulic station drainage recycling device according to claim 1, characterized in that: The inlet and outlet of the cooling tower are respectively provided with valves.

6. A blast furnace top water cooling station and hydraulic station drainage recycling device according to claim 4, characterized in that: The outlets of the furnace top water cooling station and the hydraulic station's own cooling circulation systems are additionally directly connected to the top of the water tank through a set of pipes and valves.

7. A blast furnace top water cooling station and hydraulic station drainage recycling device according to claim 1, characterized in that: The filter is a self-cleaning filter with a filtration accuracy of 100-200 μm, and can be automatically cleaned according to the pressure difference before and after the filter.

8. The blast furnace top water cooling station and hydraulic station drainage recycling device according to claim 1, characterized in that: The pipeline between the filter outlet and the inlet of the self-cooling circulation system of the furnace top water cooling station and the hydraulic station is provided with water temperature, water volume and water pressure instruments.

9. A blast furnace top water cooling station and hydraulic station drainage recycling device according to claim 1, characterized in that: The pump outlet pressure is controlled at 1.2-1.5 MPa, and the flow rate is controlled at 60-100 m 3 / h, the water temperature difference is controlled at 1-3℃.

10. The blast furnace top water cooling station and hydraulic station drainage recycling device according to claim 1, characterized in that: The flow rate of the cooling tower is controlled at 110-130m 3 / h.

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