CN211570317U - Sewage treatment system of steel smelting plant - Google Patents
Sewage treatment system of steel smelting plant Download PDFInfo
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- CN211570317U CN211570317U CN201922154009.9U CN201922154009U CN211570317U CN 211570317 U CN211570317 U CN 211570317U CN 201922154009 U CN201922154009 U CN 201922154009U CN 211570317 U CN211570317 U CN 211570317U
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Abstract
The utility model discloses a sewage treatment system of steel and iron smelting plant, including the sedimentation tank, the flocculation basin, sterilization pond and clean water reservoir, be provided with first baffle and mesh filter between sedimentation tank and the flocculation basin, the inside in flocculation basin is provided with first rabbling mechanism, first rabbling mechanism includes the hollow shaft, the agitator tube, including a motor, an end cap, a controller, and a cover plate, first shower nozzle, flocculating agent jar and second shower nozzle, processing has a plurality of through-holes on the agitator tube, the motor drive hollow shaft rotates, be provided with the sewage concentration inductor on the inner wall in flocculation basin, vertical second baffle and the active carbon adsorption layer of being provided with between sterilization pond and the clean water reservoir, the inside in sterilization pond is provided with second rabbling mechanism, second rabbling mechanism's hollow shaft connection has ozone generator, be provided with first gate valve and first water pump on the communicating pipe between flocculation basin and the sterilization pond. The utility model discloses the treatment effect is good, and work efficiency is high, and sewage treatment is thorough, has apparent economic value and social value.
Description
Technical Field
The utility model relates to a steel smelting technical field, concretely relates to steel smelting plant's sewage treatment system.
Background
In the steel smelting process of a steel smelting plant, each process can generate a large amount of waste water, such as waste water of an iron-making workshop, waste water of a steel-making workshop and waste water of a steel rolling workshop, the waste water mainly comprises indirect cooling waste water and washing waste water from the use angle, and the waste water is treated by taking measures in order to improve the utilization rate of water resources, reduce pollution and save water resources. The existing sewage treatment system of the steel smelting plant has the problems of incomplete sewage treatment, poor treatment effect, low working efficiency and the like. Therefore, it is objectively needed to develop a sewage treatment system for steel plants, which has a good treatment effect, high working efficiency and thorough sewage treatment.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a sewage treatment system of steel and iron smelting plant of steel mill that treatment is good, and work efficiency is high, and sewage treatment is thorough.
The utility model aims at realizing the method, which comprises a sedimentation tank, a flocculation tank, a sterilization tank and a clean water tank, wherein the sedimentation tank and the flocculation tank are of an integrated structure, a first clapboard is vertically arranged between the sedimentation tank and the flocculation tank, a first cover plate is arranged at the top of the flocculation tank, a gap is left between the upper end of the first clapboard and the first cover plate, a mesh filter plate is arranged at the gap, a sewage inlet pipe is arranged on the side wall of the upper part of the sedimentation tank, a slag discharge pipe is arranged at the bottom of the sedimentation tank, a first stirring mechanism is arranged inside the flocculation tank, the first stirring mechanism comprises a hollow shaft, a stirring pipe and a motor, the hollow shaft is positioned on the vertical central axis of the flocculation tank, a first spray nozzle is arranged at the lower end of the hollow shaft, a flocculating agent tank is connected after the upper end passes through the first cover plate, the stirring pipes are uniformly arranged on the hollow shaft at intervals, one end of each, processing has a plurality of through-holes on the agitator tube, and the motor is installed on first apron, installs the initiative helical gear after the output shaft tip of motor passes first apron, installs the driven helical gear with initiative helical gear engaged with on the hollow shaft, is provided with the sewage concentration inductor on the inner wall in flocculation basin, and the bottom in flocculation basin is provided with first blow-off pipe.
Disinfect pond and clean water reservoir structure as an organic whole, the vertical second baffle that is provided with between disinfect pond and the clean water reservoir, the top in disinfect pond is provided with the second apron, leave the breach between the upper end of second baffle and the second apron, breach department is provided with the active carbon adsorption layer, the bottom in disinfect pond is provided with the second blow off pipe, the inside in disinfect pond is provided with second rabbling mechanism, second rabbling mechanism is the same with first rabbling mechanism's structure, there is ozone generator second rabbling mechanism's hollow shaft upper end through the pipe connection, the bottom in clean water reservoir is provided with the water purification drain pipe.
Be provided with communicating pipe between flocculation basin and the sterilization tank, set gradually first gate valve and first water pump on communicating pipe, all be provided with the second gate valve on scum pipe, first blow off pipe, second blow off pipe and the water purification drain pipe.
Furthermore, a filter screen is arranged in the water inlet end of the communicating pipe.
Further, the below of sedimentation tank is provided with the sediment water separator, arranges the lower extreme of cinder pipe and the top intercommunication of sediment water separator, and the inside slope of sediment water separator is provided with the separation net, is provided with the slag notch on the sediment water separator lateral wall of separation net lower top, and the bottom of sediment water separator is the slope structure, and is provided with the wet return on the lateral wall of the lowest top in sediment water separator bottom, and the outlet end and the dirty pipe intercommunication of advancing of wet return are provided with the second water pump on the wet return.
Further, the top of flocculation pond is provided with softener case and bleaching powder case, and softener case and bleaching powder case all communicate through the inside of connecting line with the flocculation pond.
Furthermore, a sundry box is arranged below the flocculation tank and the sterilization tank, and the lower ends of the first sewage discharge pipe and the second sewage discharge pipe are communicated with the sundry box.
The utility model discloses when using, sewage gets into the sedimentation tank from advancing dirty pipe, material such as the iron slag that the quality is big after the sediment sinks the sedimentation tank bottom, sewage gets into in the flocculation pond after mesh filter prefilter, under the effect of stirring and flocculation agent, material such as industrial oil in the sewage flocculates and deposits and falls to the flocculation tank bottom, sewage after the flocculation enters into the sterilizing tank from communicating pipe, under the effect of stirring and ozone, the micro-phenol of smuggleing secretly in the oxidative decomposition sewage, debris such as cyanogen and oil, deodorization removes the look in the disinfection, and increase the oxygen content in aquatic, get into the clean water tank after the debris in active carbon layer adsorbed water at last and keep in. The utility model discloses at the in-process that carries out the processing to the sewage of steel smelting plant, impurity such as scum, industrial oil dirt and trace phenol, cyanogen in the sewage are cleared away in proper order, can carry out comparatively thorough processing to sewage, and the quality of water after the processing accords with the national emission regulation, and the treatment effect is good, and whole process can go on in succession automatically, and work efficiency is higher, has apparent economic value and social value.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
in the figure: 1-a sedimentation tank, 2-a flocculation tank, 3-a sterilization tank, 4-a clean water tank, 5-a first clapboard, 6-a first cover plate, 7-a mesh filter plate, 8-a sewage inlet pipe, 9-a slag discharge pipe, 10-a hollow shaft, 11-a stirring pipe, 12-a motor, 13-a first spray head, 14-a flocculant tank, 15-a second spray head, 16-a driving bevel gear, 17-a driven bevel gear, 18-a sewage concentration sensor, 19-a first sewage discharge pipe, 20-a second clapboard, 21-a second cover plate, 22-an activated carbon adsorption layer, 23-a second sewage discharge pipe, 24-an ozone generator, 25-a clean water discharge pipe, 26-a communicating pipe, 27-a first gate valve, 28-a first water pump and 29-a second gate valve, 30-a filter screen, 31-a slag-water separator, 32-a separation screen, 33-a slag outlet, 34-a water return pipe, 35-a second water pump, 36-a softener box, 37-a bleaching powder box and 38-a sundries box.
Detailed Description
The present invention will be further described with reference to the accompanying drawings, but the present invention is not limited in any way, and any changes or improvements based on the present invention are all within the protection scope of the present invention.
As shown in figure 1, the utility model comprises a sedimentation tank 1, a flocculation tank 2, a sterilization tank 3 and a clean water tank 4, wherein the sedimentation tank 1 and the flocculation tank 2 are integrated, a first clapboard 5 is vertically arranged between the sedimentation tank 1 and the flocculation tank 2, a first cover plate 6 is arranged at the top of the flocculation tank 2, a gap is reserved between the upper end of the first clapboard 5 and the first cover plate 6, a mesh filter plate 7 is arranged at the gap, a sewage inlet pipe 8 is arranged on the side wall of the upper part of the sedimentation tank 1, a slag discharge pipe 9 is arranged at the bottom of the sedimentation tank 1, a first stirring mechanism is arranged inside the flocculation tank 2, the first stirring mechanism comprises a hollow shaft 10, a stirring pipe 11 and a motor 12, the hollow shaft 10 is positioned on the vertical central axis of the flocculation tank 2, a first spray nozzle 13 is arranged at the lower end of the hollow shaft 10, a flocculating agent tank 14 is connected after the upper end passes through the first cover plate 6, the stirring pipe 11 is, one end and the hollow shaft 10 intercommunication of every agitator tube 11, the other end is provided with second shower nozzle 15, it has a plurality of through-holes to process on the agitator tube 11, motor 12 installs on first apron 6, install driving helical gear 16 after the output shaft tip of motor 12 passes first apron 6, install the driven helical gear 17 with driving helical gear 16 looks meshing on the hollow shaft 10, be provided with sewage concentration inductor 18 on the inner wall of flocculation basin 2, the bottom of flocculation basin 2 is provided with first blow off pipe 19. Preferably, the flocculating agent is liquid, the flocculating agent enters into each agitator tube 11 from hollow shaft 10, at last from the through-hole, first shower nozzle 13 and second shower nozzle 15 spout into in the sewage, pour into the flocculating agent into in the stirring, can reach better mixed effect, be favorable to the flocculation of materials such as industrial oil dirt, at the in-process of flocculation, through the concentration of sewage concentration inductor 18 detection sewage, when reaching the requirement, open first gate valve 27 on communicating pipe 26, arrange sewage into sterilization pond 3 and carry out subsequent processing, otherwise then close first gate valve 27.
A communicating pipe 26 is arranged between the flocculation tank 2 and the sterilization tank 3, a first gate valve 27 and a first water pump 28 are sequentially arranged on the communicating pipe 26, and a second gate valve 29 is arranged on the deslagging pipe 9, the first sewage discharge pipe 19, the second sewage discharge pipe 23 and the purified water drain pipe 25.
The utility model discloses when using, sewage is from advancing dirty 8 entering sedimentation tank 1 in, material such as the iron slag that the quality is big sinks sedimentation tank 1 bottom after deposiing, sewage gets into flocculation basin 2 after mesh filter 7 prefilter, under the effect of stirring and flocculation agent, material such as industrial oil in the sewage flocculates and deposits and falls to flocculation basin 2 bottom, sewage after the flocculation enters into sterilization tank 3 from communicating pipe 26 in, under the effect of stirring and ozone, the micro phenol smugglied secretly in the oxidative decomposition sewage, debris such as cyanogen and oil, deodorization removes the look in the disinfection, and increase the oxygen content of aquatic, get into water purification tank 4 after the debris of active carbon adsorption layer 22 adsorbed water at last and keep in. The utility model discloses at the in-process that carries out the processing to the sewage of steel smelting plant, impurity such as scum, industrial oil dirt and trace phenol, cyanogen in the sewage are cleared away in proper order, can carry out comparatively thorough processing to sewage, and the quality of water after the processing satisfies the regulation that the country discharged and recycled, and the treatment effect is good, and whole process can go on in succession automatically, and work efficiency is higher.
In order to prevent the flocculated materials from entering the sterilizing tank 3 from the communicating pipe 26, a filter screen 30 is arranged in the water inlet end of the communicating pipe 26.
The below of sedimentation tank 1 is provided with sediment water separator 31, the lower extreme of row's sediment pipe 9 and the top intercommunication of sediment water separator 31, the inside slope of sediment water separator 31 is provided with separation net 32, be provided with slag notch 33 on the sediment water separator 31 lateral wall of separation net 32 lower extreme top, the bottom of sediment water separator 31 is the slope structure, and be provided with wet return 34 on the lateral wall of sediment water separator 31 bottom lower extreme top, wet return 34's play water end and the 8 intercommunications of dirty pipe that advance, be provided with second water pump 35 on wet return 34. The sewage containing iron slag after being precipitated in the sedimentation tank 1 enters the slag-water separator 31 and then falls onto the separation net 32, the net objects of the separation net 32 are impurities such as iron slag, and the sewage passes through the separation net 32 and falls to the bottom of the slag-water separator 31 and enters the sedimentation tank 1 again through the water return pipe 34 for subsequent treatment.
The top of flocculation basin 2 is provided with softener case 36 and bleaching powder case 37, and softener case 36 and bleaching powder case 37 all communicate through the inside of connecting line with flocculation basin 2. The softener tank 36 is filled with softener for removing soluble salt such as calcium, magnesium and the like in the sewage and softening the water, and the bleaching powder tank 37 is filled with bleaching powder for deodorizing and decolorizing the wastewater.
The below of flocculation pond 2 and sterilization tank 3 is provided with glove compartment 38, and the lower extreme and glove compartment 38 intercommunication of first blow off pipe 19 and second blow off pipe 23, glove compartment 38 are arranged in the impurity of the flocculation thing after 2 flocculation of splendid attire flocculation pond and sterilization tank 3 and unify the processing, and in the in-service use process, only need regularly open first blow off pipe 19 and second blow off pipe 23 on the second gate valve 29 can.
Claims (5)
1. The utility model provides a sewage treatment system of steel smelting plant which characterized in that: comprises a sedimentation tank (1), a flocculation tank (2), a sterilization tank (3) and a water purification tank (4), wherein the sedimentation tank (1) and the flocculation tank (2) are of an integrated structure, a first clapboard (5) is vertically arranged between the sedimentation tank (1) and the flocculation tank (2), a first cover plate (6) is arranged at the top of the flocculation tank (2), a gap is reserved between the upper end of the first clapboard (5) and the first cover plate (6), a mesh filter plate (7) is arranged at the gap,
the sewage treatment device is characterized in that a sewage inlet pipe (8) is arranged on the side wall of the upper portion of the sedimentation tank (1), a slag discharge pipe (9) is arranged at the bottom of the sedimentation tank (1), a first stirring mechanism is arranged inside the flocculation tank (2), the first stirring mechanism comprises a hollow shaft (10), stirring pipes (11) and a motor (12), the hollow shaft (10) is located on the vertical central axis of the flocculation tank (2), a first spray head (13) is arranged at the lower end of the hollow shaft (10), a flocculating agent tank (14) is connected to the upper end of the hollow shaft after penetrating through a first cover plate (6), the stirring pipes (11) are uniformly installed on the hollow shaft (10) at intervals, one end of each stirring pipe (11) is communicated with the hollow shaft (10), a second spray head (15) is arranged at the other end of the stirring pipe (11), a plurality of through holes are processed on the stirring pipe (11), the motor (12) is installed on the first cover plate (6), and a driving bevel gear (, a driven bevel gear (17) meshed with the driving bevel gear (16) is arranged on the hollow shaft (10), a sewage concentration sensor (18) is arranged on the inner wall of the flocculation tank (2), a first sewage discharge pipe (19) is arranged at the bottom of the flocculation tank (2),
the sterilizing pond (3) and the water purifying pond (4) are of an integral structure, a second partition plate (20) is vertically arranged between the sterilizing pond (3) and the water purifying pond (4), a second cover plate (21) is arranged at the top of the sterilizing pond (3), a gap is reserved between the upper end of the second partition plate (20) and the second cover plate (21), an active carbon adsorption layer (22) is arranged at the gap, a second blow-off pipe (23) is arranged at the bottom of the sterilizing pond (3), a second stirring mechanism is arranged inside the sterilizing pond (3), the second stirring mechanism is identical to the first stirring mechanism in structure, an ozone generator (24) is connected to the upper end of a hollow shaft (10) of the second stirring mechanism through a pipeline, and a water purifying drain pipe (25) is arranged at the bottom of the water purifying pond (4);
be provided with between flocculation basin (2) and sterilization pond (3) communicating pipe (26), set gradually first gate valve (27) and first water pump (28) on communicating pipe (26), all be provided with second gate valve (29) on scum pipe (9), first blow off pipe (19), second blow off pipe (23) and water purification drain pipe (25).
2. The sewage treatment system of the steel smelting plant according to claim 1, wherein a filter screen (30) is arranged in the water inlet end of the communicating pipe (26).
3. The sewage treatment system of the steel smelting plant according to claim 1, wherein a slag-water separator (31) is arranged below the sedimentation tank (1), the lower end of the slag discharge pipe (9) is communicated with the top of the slag-water separator (31), a separation net (32) is obliquely arranged inside the slag-water separator (31), a slag outlet (33) is arranged on the side wall of the slag-water separator (31) above the lowest part of the separation net (32), the bottom of the slag-water separator (31) is of an inclined structure, a water return pipe (34) is arranged on the side wall above the lowest part of the bottom of the slag-water separator (31), the water outlet end of the water return pipe (34) is communicated with the sewage inlet pipe (8), and a second water pump (35) is arranged on the water return pipe (34).
4. The sewage treatment system of the steel smelting plant according to claim 1, wherein a softener tank (36) and a bleaching powder tank (37) are arranged above the flocculation tank (2), and the softener tank (36) and the bleaching powder tank (37) are both communicated with the inside of the flocculation tank (2) through connecting pipelines.
5. The sewage treatment system of the steel smelting plant according to claim 1, wherein a sundry box (38) is arranged below the flocculation tank (2) and the sterilization tank (3), and the lower ends of the first sewage discharge pipe (19) and the second sewage discharge pipe (23) are communicated with the sundry box (38).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922154009.9U CN211570317U (en) | 2019-12-05 | 2019-12-05 | Sewage treatment system of steel smelting plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922154009.9U CN211570317U (en) | 2019-12-05 | 2019-12-05 | Sewage treatment system of steel smelting plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211570317U true CN211570317U (en) | 2020-09-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922154009.9U Active CN211570317U (en) | 2019-12-05 | 2019-12-05 | Sewage treatment system of steel smelting plant |
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| Country | Link |
|---|---|
| CN (1) | CN211570317U (en) |
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2019
- 2019-12-05 CN CN201922154009.9U patent/CN211570317U/en active Active
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