A metallurgical turbid circulating water integrated machine and system thereof

Abstract

The invention discloses a metallurgical turbid circulating water integrated machine and a system thereof, comprising a metallurgical turbid circulating water integrated machine and a metallurgical turbid circulating water system. The metallurgical turbid circulating water integrated machine comprises a gravity mixing part, a mud separation part, a horizontal flow sedimentation part and an oil removal part which are connected and arranged in sequence from top to bottom through pipelines; the gravity mixing part comprises a vortex acceleration section and a mixing slow flow section which are connected and arranged in sequence from top to bottom; the metallurgical turbid circulating water system comprises the metallurgical turbid circulating water integrated machine, a cooling tower and rolling mill water equipment, and also comprises a slag flushing ditch, which solves the problems in the prior art that the turbid circulating water treatment system is not only complex in structure, the medicine and turbid circulating water cannot fully react, but also has the problems of large amount of new water consumption, large amount of sewage discharge and low treatment efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of metallurgical wastewater treatment, and in particular to a metallurgical turbid and circulating water integrated machine and a system thereof. Background Art

[0002] In the metallurgical process, the steel billet needs to be cooled. The cooling water is in direct contact with the high-temperature steel billet, which increases the temperature of the cooling water. During the spray cooling process, the steel billet will bring iron oxide scale and dust of different particle sizes into the water, which increases the content of suspended matter in the water and the turbidity. During the operation and maintenance of the spray equipment, oil leakage may occur. The leaked grease enters the water during the spraying process, increasing the oil content in the water, and at the same time accumulates with the dust in the water to form sludge, thus forming turbid circulating water containing iron oxide scale, grease and sludge.

[0003] At present, turbid water is generally treated through a turbid water treatment system. However, the current turbid water treatment system not only has a complex structure and the drug and turbid water cannot fully react, but also has problems such as large amount of new water consumption, large amount of sewage discharge and low treatment efficiency.

[0004] In the utility model with application number: 202022138638.5 and publication number CN212450991U, a converter slag hot stewing turbid circulating water treatment device is disclosed, including a pre-sedimentation tank and a return water tank, a water distribution flow trough, an inclined plate settler, a turbid circulating water tank, a mud regulating tank, and a sludge dewatering machine. However, this technology still has the problems of complex structure, the drug and the turbid circulating water cannot fully react, and there are also problems such as large amount of new water consumption, large amount of sewage discharge, and low treatment efficiency. Summary of the invention

[0005] Based on this, in order to solve the above problems, the present invention proposes a metallurgical turbid circulating water integrated machine and system, which solves the problems in the prior art that the turbid circulating water treatment system is not only complex in structure, the drugs and turbid circulating water cannot fully react, but also has the problems of large amount of new water consumption, large amount of sewage discharge and low treatment efficiency.

[0006] The technical solution of the present invention is:

[0007] A metallurgical turbid circulating water integrated machine, comprising a gravity mixing part, a mud separation part, a horizontal flow sedimentation part and an oil removal part which are sequentially connected through pipelines from top to bottom;

[0008] The gravity mixing section comprises a swirl acceleration section and a mixing slow flow section which are sequentially connected from top to bottom, the swirl acceleration section comprises a first shell which is hollow and has a through bottom and a spiral acceleration flow channel arranged in the first shell, the top of the first shell is provided with a turbid circulating water inlet and a first dosing port, and the bottom of the first shell and the bottom of the spiral acceleration flow channel form an acceleration outlet;

[0009] The mixing slow flow section includes a second shell and a waterwheel arranged in the second shell. The waterwheel is rotatably connected to the second shell and is arranged in coordination with the acceleration outlet. The waterwheel is vertically arranged in the second shell, and a turbid water outlet is opened at the bottom of the second shell.

[0010] The waterwheel is used to convert the impact force of the turbid ring water flowing out from the acceleration outlet after being accelerated by the spiral acceleration flow channel into the rotational force of the waterwheel. At the same time, the waterwheel plays a role in mixing and slowing down the turbid ring water during the rotation process.

[0011] Preferably, the sludge separation part includes an outer shell and an arc-shaped partition plate arranged inside the outer shell, the arc-shaped partition plate divides the inner cavity of the outer shell into an upper sedimentation chamber and a lower sludge chamber, and at least one discharge port is provided at the bottom of the arc-shaped partition plate for discharging the sludge precipitated in the sedimentation chamber into the sludge chamber, a mixed water inlet is provided at the top of the outer shell, and the mixed water inlet is connected to the turbid water outlet through a pipeline, a treated water outlet is provided at the upper end of one side of the outer shell for discharging treated water after sedimentation treatment in the sedimentation chamber, and a sludge discharge port is provided at the lower end of one side of the outer shell for discharging the sludge in the sludge chamber.

[0012] Preferably, a filter box is provided at the treated water outlet, the filter box is arranged at the treated water outlet inside the shell, regular through holes are opened on the surface of the filter box, and a plurality of filter balls are installed inside the filter box.

[0013] Preferably, the arc-shaped partition plate is arranged obliquely inside the shell, the higher end of the arc-shaped partition plate is arranged on the mixed water inlet side of the shell, and the lower end of the arc-shaped partition plate is arranged on the treated water outlet side of the shell.

[0014] Preferably, the discharge openings are three in number and are sequentially arranged at the bottom of the arc-shaped partition plate at an angle along the inclination of the arc-shaped partition plate.

[0015] Preferably, the arc-shaped partition plate is concave toward the middle, and the middle of the arc-shaped partition plate has a guide groove arranged along the inclination angle of the arc-shaped partition plate.

[0016] Preferably, the discharge port is arranged in cooperation with the guide groove.

[0017] Preferably, the advection sedimentation section is a advection sedimentation tank, the treated water outlet is connected to the advection sedimentation section through a pipeline, and the oil removal section is an oil remover, and the inlet end of the oil removal section is connected to the advection sedimentation section through a pipeline.

[0018] A metallurgical turbid circulating water system, comprising the metallurgical turbid circulating water integrated machine as described in any one of claims 1 to 8, a cooling tower and rolling mill water equipment, the oil removal part is connected to the cooling tower through a pipeline, and the cooling tower is connected to the rolling mill water equipment through a pipeline.

[0019] Preferably, the system further comprises a slag flushing ditch, the slag flushing ditch is connected with the turbid circulating water inlet through a pipeline, and the slag flushing ditch is arranged in coordination with the water use equipment of the rolling mill.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] When in use, turbid circulating water enters from the turbid circulating water inlet, and medicine is added through the first dosing port. The medicine and turbid circulating water pass through the spiral acceleration flow channel. Due to the spiral conveying principle, the water and the medicine are mixed and accelerated along the spiral acceleration flow channel, and flow out from the acceleration outlet to impact the waterwheel; the waterwheel converts the impact force of the turbid circulating water flowing out from the acceleration outlet after being accelerated by the spiral acceleration flow channel into the rotational force of the waterwheel. At the same time, the waterwheel plays a role of mixing and slowing the flow of the turbid circulating water during the rotation process, so as to achieve the purpose of mixing the medicine and the turbid circulating water by gravity, and solves the problems that the turbid circulating water treatment system in the prior art is not only complex in structure, the medicine and turbid circulating water cannot fully react, but also has a large amount of new water consumption, a large amount of sewage discharge, and low treatment efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of a metallurgical turbid circulating water integrated machine described in an embodiment of the present invention;

[0023] Figure 2 It is a structural schematic diagram of a metallurgical turbid circulating water system described in an embodiment of the present invention;

[0024] Figure 3 is a schematic structural diagram of the arc-shaped partition plate described in an embodiment of the present invention;

[0025] Figure 4 is a schematic structural diagram of the filter box described in an embodiment of the present invention;

[0026] Figure 5 is a schematic structural diagram of a waterwheel described in an embodiment of the present invention;

[0027] Figure 6 It is a schematic diagram of the internal structure of the swirl acceleration section in an embodiment of the present invention with part of the outer shell removed;

[0028] Description of reference numerals:

[0029] 10- gravity mixing section, 100- swirl acceleration section, 101- first shell, 102- spiral acceleration channel, 103- turbid water inlet, 104- first dosing port, 105- acceleration outlet, 110- mixing slow flow section, 111- second shell, 112- water wheel, 113- turbid water outlet, 20- mud separation section, 200- shell, 201- mixed water inlet, 202- treated water outlet, 203- sludge discharge port, 210- arc partition plate, 211- discharge port, 2 12-guide trough, 220-sedimentation chamber, 230-sludge chamber, 240-filter box, 241-regular through hole, 242-filter ball, 30-advection sedimentation part, 40-oil removal part, 50-cooling tower, 60-rolling mill water equipment, 70-slag flushing ditch, 80-connecting shaft, 81-rotating bearing, 82-waterwheel body, 83-buffer blade, 84-guide blade, 85-water mixing hole, 90-tee joint, 91-solenoid valve, 92-water pump, 93-connecting port, 94-clean water outlet. DETAILED DESCRIPTION

[0030] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0031] Embodiment 1:

[0032] like Figure 1 , Figure 6 As shown, this embodiment discloses a metallurgical turbid circulating water integrated machine, comprising a gravity mixing part 10, a mud separation part 20, a horizontal flow sedimentation part 30 and an oil removal part 40 which are sequentially connected through pipelines from top to bottom;

[0033] The gravity mixing section 10 includes a swirl acceleration section 100 and a mixing slow flow section 110 which are connected in sequence from top to bottom. The swirl acceleration section 100 includes a first shell 101 which is hollow and has a through bottom and a spiral acceleration channel 102 which is arranged in the first shell 101. The top of the first shell 101 is provided with a turbid water inlet 103 and a first drug injection port 104. The bottom of the first shell 101 and the bottom of the spiral acceleration channel 102 form an acceleration outlet 105.

[0034] The mixing slow flow section 110 includes a second shell 111 and a waterwheel 112 arranged in the second shell 111. The waterwheel 112 is rotatably connected to the second shell 111, and the waterwheel 112 is arranged in coordination with the acceleration outlet 105. The waterwheel 112 is vertically arranged in the second shell 111, and a turbid water outlet 113 is opened at the bottom of the second shell 111.

[0035] The waterwheel 112 is used to convert the impact force of the turbid ring water flowing out from the acceleration outlet 105 after being accelerated by the spiral acceleration channel 102 into a rotational force for the waterwheel 112 to rotate. At the same time, the waterwheel 112 plays a role in mixing, guiding and slowing down the turbid ring water during the rotation process. The waterwheel 112 is vertically arranged in the second shell 111.

[0036] When in use, turbid circulating water enters from the turbid circulating water inlet 103, and medicine is added through the first dosing port 104. The medicine and turbid circulating water pass through the spiral accelerating flow channel 102. Due to the spiral conveying principle, the water and the medicine are mixed and accelerated along the spiral accelerating flow channel 102, and flow out from the accelerating outlet 105, impacting the waterwheel 112; the waterwheel 112 converts the impact force of the turbid circulating water flowing out from the accelerating outlet 105 after being accelerated by the spiral accelerating flow channel 102 into a rotational force for the rotation of the waterwheel 112. At the same time, the waterwheel 112 plays a role of mixing and slowing the flow of the turbid circulating water during the rotation process, so as to achieve the purpose of mixing the medicine and the turbid circulating water by gravity, and solves the problems that the turbid circulating water treatment system in the prior art is not only complex in structure, the medicine and turbid circulating water cannot fully react, but also has a large amount of new water consumption, a large amount of sewage discharge, and low treatment efficiency.

[0037] like Figure 1 As shown, in order to better separate the sludge precipitated in the turbid circulating water, the present embodiment is further preferred, and the difference from the above embodiment is that the sludge separation part 20 includes an outer shell 200 and an arc-shaped partition plate 210 arranged inside the outer shell 200, the arc-shaped partition plate 210 divides the inner cavity of the outer shell 200 into an upper sedimentation chamber 220 and a lower sludge chamber 230, and at least one discharge port 211 for discharging the sludge precipitated in the sedimentation chamber 220 into the sludge chamber 230 is provided at the bottom of the arc-shaped partition plate 210, and a mixed water inlet 201 is opened at the top of the outer shell 200, and the mixed water inlet 201 is connected with the turbid circulating water outlet 113 through a pipeline, and a treated water outlet 202 for discharging the treated water after sedimentation treatment in the sedimentation chamber 220 is provided at the upper end of one side of the outer shell 200, and a sludge discharge port 203 for discharging the sludge in the sludge chamber 230 is provided at the lower end of one side of the outer shell 200.

[0038] When in use, the mixed liquid of the medicine and the turbid circulating water enters the sedimentation chamber 220 from the mixed water inlet 201, and the sludge after sedimentation settles at the bottom of the sedimentation chamber 220, and is discharged from the discharge port 211 to the sludge chamber 230, and then discharged to the external sludge treatment equipment, such as the filter press in the prior art, through the sludge discharge port 203 of the sludge chamber 230; the mixed liquid after sedimentation treatment flows to the horizontal flow sedimentation part 30 through the treated water outlet 202. The sludge is the oil sludge in the turbid circulating water.

[0039] like Figure 1As shown, in order to better filter the sludge, the present embodiment is further preferred, and the difference from the above embodiment is that a filter box 240 is provided at the treated water outlet 202, and the filter box 240 is arranged at the treated water outlet 202 inside the shell 200, and regular through holes 241 are opened on the surface of the filter box 240, and a plurality of filter balls 242 are installed inside the filter box 240.

[0040] When in use, double filtration through the regular through holes 241 on the surface of the filter box 240 and the plurality of filter balls 242 can prevent the precipitated sludge from flowing out from the treated water outlet 202, further improving the filtering effect.

[0041] like Figure 1 As shown, in order to allow the sludge to better enter the sludge chamber 230, the present embodiment is further preferred, and the difference from the above embodiment is that the arc-shaped partition plate 210 is arranged obliquely inside the outer shell 200, the higher end of the arc-shaped partition plate 210 is arranged on the side of the mixed water inlet 201 on the outer shell 200, and the lower end of the arc-shaped partition plate 210 is arranged on the side of the treated water outlet 202 on the outer shell 200; the number of the discharge ports 211 is three, and they are arranged in sequence at the bottom of the arc-shaped partition plate 210 along the inclination angle of the arc-shaped partition plate 210.

[0042] When in use, the sludge flowing out of the discharge port 211 at a high position has a higher water content, and the sludge flowing out of the discharge port 211 at a low position has a lower water content. When the sludge flowing out of the discharge port 211 flows to the sludge chamber 230, the water content will be balanced, thereby reducing the sludge blocking the discharge port 211 and the sludge blocking the sludge discharge port 203.

[0043] like Figure 4 As shown, in order to allow the sludge to better enter the sludge chamber 230, the present embodiment is further preferred, and is different from the above embodiment in that the arc-shaped partition plate 210 is concave toward the middle, and the middle part of the arc-shaped partition plate 210 has a guide groove 212 arranged along the inclination angle of the arc-shaped partition plate 210, and the discharge port 211 is arranged in coordination with the guide groove 212.

[0044] like Figure 1 As shown, in order to better separate the melt water impurities in the turbid circulating water, the present embodiment is further preferred, and the difference from the above embodiment is that the horizontal flow sedimentation section 30 is a horizontal flow sedimentation tank, and the treated water outlet 202 is connected to the horizontal flow sedimentation section 30 through a pipeline, and the oil removal section 40 is an oil removal machine, and the inlet end of the oil removal section 40 is connected to the horizontal flow sedimentation section 30 through a pipeline.

[0045] Both the horizontal flow sedimentation tank and the oil remover are existing technologies. When in use, it is necessary to add medicine to the horizontal flow sedimentation tank to remove meltwater impurities in the turbid circulating water; the oil remover is used to remove grease in the turbid circulating water.

[0046] like Figure 5 As shown, in order to make the waterwheel 112 play a better buffering and mixing role, and at the same time play a role in guiding the turbid circulating water, in the above embodiment, the waterwheel 112 includes a connecting shaft 80, a rotating bearing 81, a waterwheel body 82, a buffer blade 83 and a guide blade 84, the rotating bearing 81 is arranged in the waterwheel body 82, and the outer ring of the rotating bearing 81 is fixedly connected to the waterwheel body 82, the connecting shaft 80 passes through the inner ring of the rotating bearing 81, and is fixedly connected to the rotating bearing 81, the buffer blade 83 and the guide blade 84 are arranged at the blade end of the waterwheel body 82, and the buffer blade 83 and the guide blade 84 are both provided with a mixing hole 85, and the connecting shaft 80 is rotatably connected to the second shell 111.

[0047] When in use, the turbid ring water accelerated by the spiral accelerating flow channel 102 impacts the waterwheel body 82 of the waterwheel 112 and the buffer blades 83 on the waterwheel body 82 from the accelerating outlet 105. The waterwheel 112 converts the impact force of the turbid ring water flowing out from the accelerating outlet 105 after being accelerated by the spiral accelerating flow channel 102 into a rotational force for the rotation of the waterwheel 112, thereby playing a buffering role. The waterwheel 112 starts to rotate under the continuous action of the impact force, and the guide blades 84 guide the turbid ring water in the second shell 111 to the turbid ring water outlet 113. At the same time, during the rotation of the waterwheel 112, the turbid ring water flows back and forth through the mixing hole 85 to achieve a mixing effect.

[0048] like Figure 1 As shown, in order to further solve the problem of sludge flowing out of the discharge port 211 accumulating in the sludge chamber 230, a pipeline with a three-way joint 90 is connected to the clean water outlet 94 of the oil removal part 40, one end of the three-way joint 90 is connected to the sludge chamber 230 through a pipeline provided with a solenoid valve 91 and a water pump 92, and the connecting port 93 is arranged on the side of the discharge port 211 at the lowest point on the arc-shaped partition plate 210.

[0049] When in use, a portion of the clean water flowing out of the clean water outlet 94 of the oil removal part 40 will be pumped out by the water pump 92 to flush the sludge chamber 230, further solving the problem of sludge flowing out of the discharge port 211 accumulating in the sludge chamber 230.

[0050] Working principle of the present invention:

[0051] When in use, turbid ring water enters from the turbid ring water inlet 103, and medicine is added through the first dosing port 104. The medicine and turbid ring water pass through the spiral acceleration flow channel 102. Due to the spiral conveying principle, the water and the medicine are mixed and accelerated along the spiral acceleration flow channel 102, and flow out from the acceleration outlet 105 to impact the waterwheel 112; the waterwheel 112 converts the impact force of the turbid ring water flowing out from the acceleration outlet 105 after being accelerated by the spiral acceleration flow channel 102 into a rotational force for the rotation of the waterwheel 112. At the same time, the waterwheel 112 plays a role in mixing and slowing the flow of the turbid ring water during the rotation process, thereby achieving the purpose of mixing the medicine and the turbid ring water through gravity.

[0052] Embodiment 2:

[0053] like Figure 2 As shown, this embodiment discloses a metallurgical turbid circulating water system, comprising a metallurgical turbid circulating water integrated machine as described in any one of claims 1 to 8 above, a cooling tower 50 and a rolling mill water equipment 60, the oil removal part 40 is connected to the cooling tower 50 through a pipeline, and the cooling tower 50 is connected to the rolling mill water equipment 60 through a pipeline.

[0054] When in use, the turbid circulating water is processed by the metallurgical turbid circulating water integrated machine, flows into the cooling tower 50 through a pipeline, and then flows from the cooling tower 50 through a pipeline to the rolling mill water equipment 60.

[0055] In order to better remove impurities in the turbid circulating water, the present embodiment is further preferred, and the difference from the above embodiment is that the system also includes a slag flushing ditch 70, which is connected to the turbid circulating water inlet 103 through a pipeline, and the slag flushing ditch 70 is arranged in cooperation with the rolling mill water equipment 60.

[0056] When in use, turbid circulating water can be recycled and treated, solving the problem of large amount of new water injection and low treatment efficiency in the current turbid circulating water system.

[0057] In the above embodiments, the arrangement of the valve and the pump body is determined according to the actual installation and use conditions, and will not be described in detail in the embodiments of the present invention.

[0058] The above-mentioned embodiments only express the specific implementation of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A metallurgical turbid circulating water integrated machine, characterized in that: The invention comprises a gravity mixing section (10), a mud separation section (20), a horizontal flow sedimentation section (30) and an oil removal section (40) which are connected in sequence through pipelines; the gravity mixing section (10) comprises a swirl acceleration section (100) and a mixing slow flow section (110) which are connected in sequence from top to bottom; the swirl acceleration section (100) comprises a first shell (101) which is hollow and has a through bottom and a spiral acceleration channel (102) arranged in the first shell (101); a turbid circulating water inlet (103) and a first drug feeding port (104) are provided at the top of the first shell (101); and an acceleration outlet (105) is formed between the bottom of the first shell (101) and the bottom of the spiral acceleration channel (102); The mixing slow flow section (110) comprises a second shell (111) and a water wheel (112) disposed in the second shell (111); the water wheel (112) is rotatably connected to the second shell (111), and the water wheel (112) is arranged in coordination with the acceleration outlet (105); the water wheel (112) is vertically disposed in the second shell (111), and a turbid water outlet (113) is provided at the bottom of the second shell (111); The sludge separation part (20) comprises an outer shell (200) and an arc-shaped partition plate (210) arranged inside the outer shell (200); the arc-shaped partition plate (210) is arranged obliquely inside the outer shell (200); the arc-shaped partition plate (210) divides the inner cavity of the outer shell (200) into an upper sedimentation chamber (220) and a lower sludge chamber (230); three discharge ports (211) for discharging sludge settled in the sedimentation chamber (220) into the sludge chamber (230) are arranged at the bottom of the arc-shaped partition plate (210); the discharge ports (211) are arranged sequentially at the bottom of the arc-shaped partition plate (210) along the inclination angle of the arc-shaped partition plate (210).

2. The metallurgical turbid circulating water integrated machine according to claim 1, characterized in that: The top of the housing (200) is provided with a mixed water inlet (201), the mixed water inlet (201) being connected to the turbid circulating water outlet (113) via a pipeline, the upper end of one side of the housing (200) being provided with a treated water outlet (202) for discharging treated water after sedimentation treatment in the sedimentation chamber (220), and the lower end of one side of the housing (200) being provided with a sludge discharge port (203) for discharging sludge in the sludge chamber (230).

3. The metallurgical turbid circulating water integrated machine according to claim 2, characterized in that: A filter box (240) is provided at the treated water outlet (202); the filter box (240) is arranged at the treated water outlet (202) inside the housing (200); a surface of the filter box (240) is provided with regular through holes (241); and a plurality of filter balls (242) are installed inside the filter box (240).

4. The metallurgical turbid circulating water integrated machine according to claim 3 is characterized in that: The higher end of the arc-shaped partition plate (210) is arranged on the side of the mixed water inlet (201) on the housing (200), and the lower end of the arc-shaped partition plate (210) is arranged on the side of the treated water outlet (202) on the housing (200).

5. The metallurgical turbid circulating water integrated machine according to claim 4, characterized in that: The arc-shaped partition plate (210) is concave toward the middle, and the middle of the arc-shaped partition plate (210) has a guide groove (212) arranged along the inclination angle of the arc-shaped partition plate (210).

6. The metallurgical turbid circulating water integrated machine according to claim 5, characterized in that: The discharge port (211) is arranged in coordination with the guide groove (212).

7. The metallurgical turbid circulating water integrated machine according to claim 6, characterized in that: The advection sedimentation section (30) is a advection sedimentation tank, the treated water outlet (202) is connected to the advection sedimentation section (30) via a pipeline, the oil removal section (40) is an oil removal machine, and the inlet end of the oil removal section (40) is connected to the advection sedimentation section (30) via a pipeline.

8. A metallurgical turbid circulating water system, characterized in that: It comprises the metallurgical turbid circulating water integrated machine, a cooling tower (50) and a rolling mill water equipment (60) as described in any one of claims 1 to 7, wherein the oil removal part (40) is connected to the cooling tower (50) through a pipeline, and the cooling tower (50) is connected to the rolling mill water equipment (60) through a pipeline.

9. A metallurgical turbid circulating water system according to claim 8, characterized in that: The system further comprises a slag flushing ditch (70), wherein the slag flushing ditch (70) is arranged in cooperation with the turbid circulating water inlet (103), and the slag flushing ditch (70) is arranged in cooperation with the rolling mill water equipment (60).

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