Cooling water circulation device for iron-making blast furnace and using method

Abstract

The invention discloses a cooling water circulation device for an iron-making blast furnace and a using method, and relates to the technical field of cooling equipment, the cooling water circulation device comprises a circulation box, a water inlet pipe, a circulation water outlet pipe, a circulation water outlet valve, a waste water outlet pipe, a waste water outlet valve, a filtering assembly and a driving part, and the water inlet pipe is connected and communicated with one side of the circulation box; the circulating water outlet pipe is connected and communicated with one side of the circulating box; the circulating water outlet valve is arranged on the water outlet pipe; the wastewater outlet pipe is arranged at the bottom of the circulating box; the wastewater outlet valve is arranged on the wastewater outlet pipe; the filtering assembly is used for filtering the cooling water in the circulating box; the driving part is used for driving the filtering assembly to move downwards so that the filtering assembly can press impurities in the cooling water, the impurities sink to the bottom, the structure is simple, use is convenient, and the cooling water recycling effect is effectively improved.

Description

Technical Field

[0001] The present invention relates to the technical field of cooling equipment, and in particular to a cooling water circulation device for an iron-making blast furnace and a use method thereof. Background Art

[0002] The utility model with announcement number CN217058118U provides a cooling water circulation device, which relates to the technical field of cooling equipment, including: a water supply mechanism, a discharge pipe, a heat exchange mechanism and a pipeline assembly; cooling water is stored in the water supply mechanism, and is connected to the heat exchange mechanism through a pipeline assembly, so that the cooling water in the water supply mechanism can flow to the heat exchange mechanism through the pipeline assembly; the discharge pipe is arranged on the pipeline assembly, the discharge pipe is connected to the inside of the pipeline assembly, and the angle between the opening direction of the discharge pipe and the flow direction of the cooling water is an obtuse angle. Due to the principle of fluid mechanics, when the cooling water flows at a high speed from the water supply mechanism to the heat exchange mechanism in the pipeline assembly, the cooling water will not flow out from the discharge pipe, and when the heat exchange mechanism fails or is blocked, the cooling water flows from the discharge pipe into the water supply mechanism to form a loop, which alleviates the technical problem of water pump damage or pipeline damage caused by increased pressure in the pipeline in the prior art, and achieves the technical effect of extending the service life of the water pump and the pipeline and reducing the maintenance cost.

[0003] In the blast furnace ironmaking process, cooling water is needed to quickly cool down the blast furnace device. The cooling water consumption is large. Directly discharging the used cooling water will cause waste of resources and low resource utilization efficiency. The cooling water is now recycled. In the process of recycling the cooling water, solvents need to be added to the cooling water and impurities in the cooling water need to be filtered. The impurities in the cooling water will float on the water surface, affecting the recycling effect. The filtering mechanism of the device needs to be improved.

[0004] However, the above patents still have the above problems:

[0005] In view of this, the present invention is proposed. Summary of the invention

[0006] The purpose of the present invention is to provide a cooling water circulation device for an iron-making blast furnace and a method of use, so as to solve the problems existing in the above-mentioned prior art, with a simple structure, easy use, and effectively improving the recovery effect of cooling water.

[0007] To achieve the above object, the present invention provides the following solutions:

[0008] The present invention provides a cooling water circulation device for an iron-making blast furnace, comprising: a circulation box, a water inlet pipe, a circulating water outlet pipe, a circulating water outlet valve, a wastewater outlet pipe, a wastewater outlet valve, a filter assembly and a driving member, wherein the water inlet pipe is connected to and communicated with one side of the circulation box; the circulating water outlet pipe is connected to and communicated with one side of the circulation box; the circulating water outlet valve is arranged on the outlet pipe; the wastewater outlet pipe is arranged at the bottom of the circulation box; the wastewater outlet valve is arranged on the wastewater outlet pipe; the filter assembly is used to filter the cooling water in the circulation box; the driving member is used to drive the filter assembly to move downward so that the filter assembly presses the impurities in the cooling water to sink the impurities to the bottom.

[0009] Preferably, the filter assembly includes a fixed frame plate, a support frame and a water filter mesh plate, the support frame is fixedly arranged in the fixed frame plate to form a plurality of water filter mesh plate stations, and the water filter mesh plate stations are used to install the water filter mesh plates.

[0010] Preferably, the filter assembly also includes a limiting frame plate, the limiting frame plate is provided with a snap-in groove, the outer periphery of the limiting frame plate is arranged to fit the inner wall of the circulation box, and a snap-in plate is provided on one side of the fixed frame plate, the snap-in plate is used to snap into the snap-in groove so that the fixed frame plate is snap-in to the top of the limiting frame plate.

[0011] Preferably, it also includes a plurality of guide rods, the limit frame plate is provided with a plurality of limit sleeves passing through the limit frame plate, one guide rod is used to pass through one limit sleeve to guide the movement of the limit frame plate, and the bottom of the guide rod is fixedly connected to the bottom of the circulation box.

[0012] Preferably, the driving member includes a first fixed plate, a servo motor and a threaded rod, the first fixed plate is arranged at the top of the inner wall of the circulation box, the servo motor is fixedly connected to the top of the first fixed plate, the threaded rod is fixedly connected to the output end of the servo motor, a threaded sleeve passing through the limit frame plate is arranged in the middle of one side of the limit frame plate, the threaded rod is used for threaded connection with the threaded sleeve, and the bottom end of the threaded rod is rotatably connected to the bottom of the circulation box.

[0013] Preferably, it also includes multiple second fixing plates and multiple limiting bolts. A threaded groove is provided on the side of the water outlet pipe away from the circulation box, and the threaded groove is used for threaded connection with the water outlet pipe. Each of the second fixing plates is fixedly connected to the outer side of the water outlet pipe. A threaded hole is provided on the second fixing plate, and the limiting bolt is used to pass through the water outlet pipe and be threadedly connected to the threaded hole.

[0014] Preferably, it also includes a sealing rubber ring, and the sealing rubber ring is provided at the connection between the wastewater outlet pipe and the circulation box.

[0015] Preferably, it further includes two impurity cleaning devices, which are symmetrically arranged about the outlet pipe, and are used to push impurities on the bottom plate of the circulation box into the wastewater outlet pipe.

[0016] Preferably, it also includes a material guide plate, which is fixedly arranged on the bottom plate of the circulation box. The impurity cleaning device includes a hydraulic cylinder, a hydraulic push rod and a push plate. The hydraulic cylinder is fixedly connected to the side wall of the circulation box, one end of the hydraulic push rod is connected to the hydraulic cylinder, and the other end is fixedly connected to the push plate. The bottom of the push plate is fitted with the material guide plate.

[0017] The present invention also provides a method for using the cooling water circulation device for an ironmaking blast furnace as described in any one of the above items, comprising the following steps:

[0018] After the cooling water enters the circulation box through the water inlet pipe, the driving part drives the filter assembly to pass the filtered water from top to bottom, thereby pressing the impurities in the cooling water and sinking the impurities to the bottom. Then the circulating water outlet valve is opened to allow the filtered cooling water to enter the outlet pipe from the circulating water outlet pipe for reuse. Then the waste water outlet valve is opened to discharge the waste water with impurities from the waste water outlet pipe.

[0019] Compared with the prior art, the present invention has achieved the following technical effects:

[0020] The present invention provides a cooling water circulation device for an iron-making blast furnace and a use method thereof. After the cooling water enters the circulation box through a water inlet pipe, a driving component drives a filter assembly to pass the filtered water from top to bottom, thereby pressing impurities in the cooling water and sinking the impurities to the bottom. Then, a circulating water outlet valve is opened to allow the filtered cooling water to enter an outlet pipe from the circulating water outlet pipe for reuse. Then, a waste water outlet valve is opened to discharge waste water with impurities from the waste water outlet pipe. The device can achieve the purpose of filtering residues from the cooling water, prevent the flow of impurity water from clogging the outlet pipe, improve the fixed stability of the device, quickly filter the cooling water, and improve the flexibility of the device. The device can achieve the purpose of graded processing and output of the cooling water, improve the circulation efficiency of the cooling water, classify and output available circulating water and unavailable circulating water, and optimize the use experience of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 A front view of a cooling water circulation device for an iron-making blast furnace provided by the present invention;

[0023] Figure 2 A side view of a cooling water circulation device for an iron-making blast furnace provided by the present invention;

[0024] Figure 3 A top view of a cooling water circulation device for an iron-making blast furnace provided by the present invention;

[0025] Figure 4 A schematic diagram of the structure of a circulation box in a cooling water circulation device for an iron-making blast furnace provided by the present invention;

[0026] Figure 5 A schematic structural diagram of a slag filter assembly in a cooling water circulation device for an ironmaking blast furnace provided by the present invention;

[0027] Figure 6 A schematic diagram of the structure of a driving member in a cooling water circulation device for an iron-making blast furnace provided by the present invention;

[0028] Figure 7 A schematic diagram of the structure of an impurity cleaning device in a cooling water circulation device for an iron-making blast furnace provided by the present invention;

[0029] In the figure: 10, circulation box; 11, water inlet pipe; 12, second fixed plate; 13, threaded hole; 14, first limit bolt; 15, threaded groove; 16, sealing rubber ring; 17, circulating water outlet pipe; 18, circulating water outlet valve; 19, wastewater outlet pipe; 20, wastewater outlet valve; 21, hydraulic cylinder; 22, hydraulic push rod; 23, guide plate; 24, push plate; 25, water filter screen; 26, first fixed plate; 27, servo motor; 28, threaded rod; 29, limit frame plate; 30, threaded sleeve; 31, limit sleeve; 32, guide rod; 33, clamping groove; 34, fixed frame plate; 35, clamping plate; 36, grip rod; 37, support frame; 38, water filter screen. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0031] The purpose of the present invention is to provide a cooling water circulation device for an iron-making blast furnace and a method of use, so as to solve the problems existing in the above-mentioned prior art, with a simple structure, easy use, and effectively improving the recovery effect of cooling water.

[0032] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0033] Embodiment 1

[0034] This embodiment provides a cooling water circulation device for an iron-making blast furnace, such as Figures 1 to 7 As shown, it includes: a circulation box 10, an inlet pipe 11, a circulating water outlet pipe 17, a circulating water outlet valve 18, a waste water outlet pipe 19, a waste water outlet valve 20, a filter assembly and a drive member. The inlet pipe 11 is connected and communicated with one side of the circulation box 10; the circulating water outlet pipe 17 is connected and communicated with one side of the circulation box 10; the circulating water outlet valve 18 is arranged on the outlet pipe; the waste water outlet pipe 19 is arranged at the bottom of the circulation box 10; the waste water outlet valve 20 is arranged on the waste water outlet pipe 19; the filter assembly is used to filter the cooling water in the circulation box 10; the drive member is used to drive the filter assembly to move downward so that the filter assembly presses the impurities in the cooling water to sink the impurities to the bottom. After the cooling water enters the circulation box 10 through the inlet pipe 11, The driving member drives the filter assembly to pass the filtered water from top to bottom, thereby pressing the impurities in the cooling water and sinking the impurities to the bottom, and then opens the circulating water outlet valve 18 to allow the filtered cooling water to enter the outlet pipe from the circulating water outlet pipe 17 for reuse, and then opens the wastewater outlet valve 20 to discharge the wastewater with impurities from the wastewater outlet pipe 19; it can achieve the purpose of filtering the cooling water, prevent the flow of impurity water from blocking the outlet pipe, improve the fixed stability of the device, quickly filter the cooling water, and improve the flexibility of the device; it can achieve the purpose of graded processing and output of cooling water, improve the circulation efficiency of cooling water, classify and output available circulating water and unusable circulating water, and optimize the use experience of the device.

[0035] In a preferred solution of the present embodiment, the filter assembly includes a fixed frame plate 34, a support frame 37 and a water filter mesh plate 38. The support frame 37 is fixedly arranged in the fixed frame plate 34 to form a plurality of water filter mesh plate 38 workstations. The water filter mesh plate 38 workstations are used to install the water filter mesh plates 38. The structure is simple and it is convenient to disassemble and replace the water filter mesh plates 38 separately.

[0036] In a preferred solution of the present embodiment, the filter assembly also includes a limiting frame plate 29, which is provided with a snap-in groove 33. The outer periphery of the limiting frame plate 29 is arranged to fit the inner wall of the circulation box 10. A snap-in plate 35 is provided on one side of the fixed frame plate 34. The snap-in plate 35 is used to snap into the snap-in groove 33 so that the fixed frame plate 34 is snap-in to the top of the limiting frame plate 29. The structure is simple, and while ensuring the stable connection between the fixed frame plate 34 and the limiting frame plate 29, it is convenient to disassemble the fixed frame plate 34 and the limiting frame plate 29.

[0037] In a preferred solution of the present embodiment, a gripping rod 36 is provided in the clamping plate 35 , and the gripping rod 36 facilitates the clamping plate 35 to be pulled out from the clamping slot 33 .

[0038] In a preferred scheme of the present embodiment, the cooling water circulation device and use method for an iron-making blast furnace also include a plurality of guide rods 32, and the limit frame plate 29 is provided with a plurality of limit sleeves 31 passing through the limit frame plate 29. A guide rod 32 is used to pass through a limit sleeve 31 to guide the movement of the limit frame plate 29, and the bottom of the guide rod 32 is fixedly connected to the bottom of the circulation box 10. The structure is simple to ensure stability during movement.

[0039] In a preferred solution of the present embodiment, the driving member includes a first fixed plate 26, a servo motor 27 and a threaded rod 28. The first fixed plate 26 is arranged at the top of the inner wall of the circulation box 10, the servo motor 27 is fixedly connected to the top of the first fixed plate 26, the threaded rod 28 is fixedly connected to the output end of the servo motor 27, and a threaded sleeve 30 passing through the limit frame plate 29 is arranged in the middle of one side of the limit frame plate 29. The threaded rod 28 is used for being threadedly connected to the threaded sleeve 30, and the bottom end of the threaded rod 28 is rotatably connected to the bottom of the circulation box 10. The structure is simple and easy to use.

[0040] In a preferred scheme of the present embodiment, the cooling water circulation device for an iron-making blast furnace and the use method thereof also include a plurality of second fixed plates 12 and a plurality of limit bolts 14. A threaded groove 15 is provided on the side of the water outlet pipe away from the circulation box 10. The threaded groove 15 is used for threaded connection with the water outlet pipe. Each second fixed plate 12 is fixedly connected to the outer side of the water outlet pipe. A threaded hole 13 is provided on the second fixed plate 12. The limit bolt 14 is used for passing through the water outlet pipe and threadedly connecting with the threaded hole 13. The structure is simple, and the stability of the connection between the water outlet pipes is ensured.

[0041] In a preferred solution of the present embodiment, the cooling water circulation device and the use method for the iron-making blast furnace further include a sealing rubber ring 16 , and a sealing rubber ring 16 is provided at the connection between the wastewater outlet pipe 19 and the circulation box 10 .

[0042] In a preferred scheme of the present embodiment, the cooling water circulation device for an iron-making blast furnace and the method of use also include two impurity cleaning devices, which are symmetrically arranged about the outlet pipe, and the impurity cleaning devices are used to push impurities on the bottom plate of the circulation box 10 into the wastewater outlet pipe 19.

[0043] In a preferred scheme of the present embodiment, the cooling water circulation device for an iron-making blast furnace and the use method thereof also include a guide plate 23, which is fixedly arranged on the bottom plate of the circulation box 10. The impurity cleaning device includes a hydraulic cylinder 21, a hydraulic push rod 22 and a push plate 24. The hydraulic cylinder 21 is fixedly connected to the side wall of the circulation box 10, one end of the hydraulic push rod 22 is connected to the hydraulic cylinder 21, and the other end is fixedly connected to the push plate 24. The bottom of the push plate 24 is fitted with the guide plate 23 to move the impurities filtered out from the bottom, prevent the impurities from sticking to the inner wall of the device and affecting the subsequent filtering effect, reduce the manual cleaning pressure, improve the convenience of using the device, and improve the durability of the device.

[0044] In a preferred scheme of this embodiment, the cooling water circulation device and use method for an iron-making blast furnace also include a water filter mesh cover 25, which is arranged at the top of the wastewater outlet pipe 19, and the wastewater and impurities are filtered and discharged through the water filter mesh cover 25.

[0045] In a preferred solution of this embodiment, a plurality of legs are provided at the bottom of the circulation box 10 to support the circulation box 10 .

[0046] Embodiment 2

[0047] This embodiment also provides a method for using the cooling water circulation device for an ironmaking blast furnace as described in any one of the above items, comprising the following steps:

[0048] After the cooling water enters the circulation box 10 through the water inlet pipe 11, the driving part drives the filter assembly to pass the filtered water from top to bottom, thereby pressing the impurities in the cooling water and sinking the impurities to the bottom, and then the circulating water outlet valve 18 is opened to allow the filtered cooling water to enter the outlet pipe from the circulating water outlet pipe 17 for reuse, and then the waste water outlet valve 20 is opened to discharge the waste water with impurities from the waste water outlet pipe 19.

[0049] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. At the same time, for those skilled in the art, according to the ideas of the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A cooling water circulation device for an iron-making blast furnace, characterized in that: include: Circulation box, A water inlet pipe, the water inlet pipe is connected to and communicates with one side of the circulation box; A circulating water outlet pipe, the circulating water outlet pipe is connected to and communicates with one side of the circulation box; A circulating water outlet valve, wherein the circulating water outlet valve is arranged on the outlet pipe; A wastewater outlet pipe, the wastewater outlet pipe is arranged at the bottom of the circulation box; A wastewater outlet valve, the wastewater outlet valve being arranged on the wastewater outlet pipe; A filter assembly, the filter assembly is used to filter the cooling water in the circulation box; as well as A driving member is used to drive the filter assembly to move downward so that the filter assembly presses impurities in the cooling water and causes the impurities to sink to the bottom.

2. The cooling water circulation device for an iron-making blast furnace according to claim 1, characterized in that: The filter assembly includes a fixed frame, a support frame and a water filter mesh plate. The support frame is fixedly arranged in the fixed frame to form a plurality of water filter mesh plate stations, and the water filter mesh plate stations are used to install the water filter mesh plates.

3. The cooling water circulation device for an iron-making blast furnace according to claim 2, characterized in that: The filter assembly also includes a limiting frame plate, which is provided with a snap-in groove. The outer periphery of the limiting frame plate is arranged to fit the inner wall of the circulation box. A snap-in plate is provided on one side of the fixed frame plate, and the snap-in plate is used to snap into the snap-in groove so that the fixed frame plate is snap-in to the top of the limiting frame plate.

4. The cooling water circulation device for an iron-making blast furnace according to claim 3, characterized in that: It also includes a plurality of guide rods, and the limit frame plate is provided with a plurality of limit sleeves passing through the limit frame plate, one guide rod is used to pass through one limit sleeve to guide the movement of the limit frame plate, and the bottom of the guide rod is fixedly connected to the bottom of the circulation box.

5. The cooling water circulation device for an iron-making blast furnace according to claim 4, characterized in that: The driving member includes a first fixed plate, a servo motor and a threaded rod. The first fixed plate is arranged at the top of the inner wall of the circulation box. The servo motor is fixedly connected to the top of the first fixed plate. The threaded rod is fixedly connected to the output end of the servo motor. A threaded sleeve passing through the limit frame is arranged in the middle of one side of the limit frame. The threaded rod is used for threaded connection with the threaded sleeve, and the bottom end of the threaded rod is rotatably connected to the bottom of the circulation box.

6. The cooling water circulation device for an iron-making blast furnace according to claim 1, characterized in that: It also includes multiple second fixing plates and multiple limiting bolts. A threaded groove is provided on the side of the water outlet pipe away from the circulation box, and the threaded groove is used to be threadedly connected to the water outlet pipe. Each of the second fixing plates is fixedly connected to the outer side of the water outlet pipe. A threaded hole is provided on the second fixing plate, and the limiting bolt is used to pass through the water outlet pipe and be threadedly connected to the threaded hole.

7. The cooling water circulation device for an iron-making blast furnace according to claim 1, characterized in that: It also includes a sealing rubber ring, which is provided at the connection between the wastewater outlet pipe and the circulation box.

8. The cooling water circulation device for an iron-making blast furnace according to claim 1, characterized in that: It also includes two impurity cleaning devices, which are symmetrically arranged about the outlet pipe, and are used to push impurities on the bottom plate of the circulation box into the wastewater outlet pipe.

9. The cooling water circulation device for an iron-making blast furnace according to claim 8, characterized in that: It also includes a material guide plate, which is fixedly arranged on the bottom plate of the circulation box. The impurity cleaning device includes a hydraulic cylinder, a hydraulic push rod and a push plate. The hydraulic cylinder is fixedly connected to the side wall of the circulation box, one end of the hydraulic push rod is connected to the hydraulic cylinder, and the other end is fixedly connected to the push plate. The bottom of the push plate is fitted with the material guide plate.

10. A method for using the cooling water circulation device for an ironmaking blast furnace according to any one of claims 1 to 9, characterized in that: The following steps are involved: After the cooling water enters the circulation box through the water inlet pipe, the driving part drives the filter assembly to pass the filtered water from top to bottom, thereby pressing the impurities in the cooling water and sinking the impurities to the bottom. Then the circulating water outlet valve is opened to allow the filtered cooling water to enter the outlet pipe from the circulating water outlet pipe for reuse. Then the waste water outlet valve is opened to discharge the waste water with impurities from the waste water outlet pipe.

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