CN217479259U

CN217479259U - Continuous rolling turbid circulating water purification system

Info

Publication number: CN217479259U
Application number: CN202221591245.2U
Authority: CN
Inventors: 边磊; 刘艳清; 宋轶鸿; 刘欢
Original assignee: Zhongye Northwest Engineering Technology Co ltd
Current assignee: Zhongye Northwest Engineering Technology Co ltd
Priority date: 2022-06-23
Filing date: 2022-06-23
Publication date: 2022-09-23
Anticipated expiration: 2032-06-23

Abstract

The utility model discloses a continuous rolling turbid circulating water purification system, which solves the technical problems of poor water quality and high operation cost of water outlet. The device comprises a workshop, an iron scale launder, a rotational flow sedimentation tank, a horizontal flow sedimentation tank, a filter, a cooling tower, a cooling tank, a backwashing water storage tank, a slurry regulating tank and an iron scale dewatering tank which are arranged in sequence; the cyclone sedimentation tank comprises: the cyclone filter comprises a cyclone cell body, a central cylinder, a water inlet flow groove, an overflow groove, a sludge storage hopper and a dosing device, wherein the iron sheet dehydration pool is communicated with the water inlet flow groove through a water filtering return pipe, a trestle is arranged on the side of the iron sheet dehydration pool, a grab crane is arranged on the trestle, the grab crane can grab the iron oxide scale slag in the sludge storage hopper and the horizontal flow sedimentation pool into the iron sheet dehydration pool, and the iron oxide scale slag in the iron sheet dehydration pool can be used as a filter material. The utility model can improve the water quality of the discharged water, simplify the process, save the operation cost and save the energy consumption.

Description

Continuous rolling turbid circulating water purification system

Technical Field

The utility model belongs to the technical field of clean system, concretely relates to tandem rolling turbid circulating water clean system.

Background

In the production process of continuous casting and hot rolling, the circulating cooling water is in direct contact with the surfaces of equipment and products, so that the water temperature is increased after the continuous casting and hot rolling is used, and the circulating cooling water contains iron scales, oil substances and the like, and the water is called turbid circulating water.

And (3) a conventional treatment mode: the turbid circulating water is treated by a cyclone sedimentation tank for primary sedimentation and then is subjected to secondary treatment by a horizontal sedimentation tank or a chemical oil remover, a rare earth magnetic disc purification device and a high-efficiency turbid circulating water purification device to remove most of suspended matters and oil in water. And the third treatment is filtering treatment, further removing fine particle suspended matters and colloidal substances in the water, pressurizing the water to a cooling tower through a lifting pump after reaching the water use standard of the circulating water quality, and pressurizing the water by using a pump after cooling and cooling for the user to use in a circulating way.

The chemical oil remover, the high-efficiency turbid circulating water purification device and the filter generate slurry which flows automatically and is discharged into a slurry adjusting tank, the slurry is pressurized to a sludge concentration tank through a slurry pump, the slurry is pressurized to a sludge dewatering device through a pump for dewatering treatment, the filtered water flows back to a rotational flow sedimentation tank, and the sludge is recycled for production.

The conventional treatment mode is changed from a tertiary treatment mode (flocculation-precipitation-filtration) to a secondary treatment mode (a chemical oil remover, a rare earth magnetic disk purification device and a high-efficiency turbid circulating water purification device). Through adding the chemicals, the purification device is continuously improved, and although the effluent quality effect is improved, the problem of unstable effluent quality still exists, so that the water quality standard of circulating water is difficult to achieve.

Therefore, in order to improve the quality of the circulating water, a filtering device is often required to be arranged, however, the arrangement of a huge sludge treatment facility (a sludge adjusting tank, a sludge concentration tank and sludge dewatering equipment) has the problems of poor dewatering effect and high sludge water content, and various problems of complicated equipment, high wear rate, frequent replacement of parts, high management and maintenance cost, high operating cost, low production efficiency, frequent splashing, poor operating environment and the like, and needs to be improved.

SUMMERY OF THE UTILITY MODEL

In order to solve all or part of the problems, the utility model aims to provide a purification system for continuously rolled turbid circulating water, which has the advantages of improving the water quality of outlet water, simplifying the process, saving the operating cost and saving the energy consumption.

The utility model provides a purification system for continuously rolled turbid circulating water, which comprises a workshop, an iron scale trough, a rotational flow sedimentation tank, a horizontal flow sedimentation tank, a filter, a cooling tower, a cooling tank, a backwashing water storage tank, a slurry adjusting tank and an iron scale dewatering tank which are arranged in sequence;

the cyclone sedimentation tank comprises:

the cyclone tank body plays a role in storage;

the central cylinder is vertically arranged in the cyclone tank body;

one end of the water inlet flow groove is communicated with the central cylinder, and the other end of the water inlet flow groove is communicated with the scale flow groove;

one end of the overflow groove is communicated with the cyclone tank body, and the other end of the overflow groove is communicated with the horizontal flow sedimentation tank;

the sludge storage hopper is arranged at the bottom of the cyclone tank body;

the magnetic flocculation dosing device is arranged on the side of the cyclone cell body, and a dosing pipe of the magnetic flocculation dosing device is communicated with the water inlet chute;

wherein, iron sheet dehydration pond and intake chute pass through the drainage wet return intercommunication, the side in iron sheet dehydration pond is provided with the landing stage, be provided with the grab bucket crane on the landing stage, the grab bucket crane can snatch the iron oxide skin sediment in storing up mud bucket and the advection sedimentation tank to in the iron sheet dehydration pond, just the iron oxide skin sediment in the iron sheet dehydration pond can be used as the filter material.

Optionally, the water inlet chute extends into the interior of the central cylinder, and the central cylinder is tangential to the water inlet chute.

Optionally, the mud storage hoppers are arranged in an inverted trapezoid shape, and an included angle between the side wall of each mud storage hopper and the horizontal plane is 55 °.

Optionally, the horizontal flow sedimentation tank comprises:

the advection pool body plays a role in storage;

the water distribution chute is arranged in the advection pool body, and the overflow chute is communicated with the water distribution chute;

the oil flocculation dosing device is arranged on the advection pool body, and a dosing pipe of the oil flocculation dosing device is deep into the water distribution chute;

the mud storage pit is arranged in the advection pool body and is used for storing the ferric oxide scale slag;

the water outlet baffle is arranged in the advection pool body;

the hot water pool is arranged in the advection pool body;

the lifting pump is arranged in the hot water pool;

wherein, the elevator pump is used for lifting the rivers in the hot-water pond to the filter in.

Optionally, the horizontal flow sedimentation tank further comprises:

the oil and slag scraping machine is used for scraping and pushing floating oil and iron oxide scale slag;

the floating oil recovery device is arranged on the advection pool body, and an oil collecting towing belt of the floating oil recovery device is deeply inserted into the water distribution chute;

the oil skimming device is used for skimming floating oil;

the oil and slag scraper scrapes slag in a mud storage pit by counter-current flow and scrapes oil in a skimming device by following the counter-current flow.

Optionally, an air flotation device is arranged on the advection pool body, and an air dissolving pipe of the air flotation device extends into the advection pool body.

Optionally, the filter is communicated with a filtering water inlet pipe and a filtering water outlet pipe, the filtering water inlet pipe is communicated with the lift pump, and the filtering water outlet pipe is communicated with the cooling tower.

Optionally, a backwash water inlet pipe and a backwash water drain pipe are communicated with the filter, the backwash water drain pipe is communicated with the slurry adjusting tank, a backwash water supply pump is arranged on the backwash water inlet pipe, a backwash water suction end of the backwash water supply pump is communicated with a backwash water suction pipe, and the backwash water suction pipe is communicated with the backwash water storage tank.

Optionally, the slurry adjusting tank is communicated with a slurry pump water suction pipe, a slurry pump is arranged on the slurry water suction pipe, a water discharge end of the slurry pump is communicated with a slurry return pipe, and the slurry return pipe is communicated with a spray pipe in the iron sheet dehydration tank.

Optionally, a water suction pipe for a user pump is communicated with the cooling pool, a water pump for the user is arranged on the water suction pipe for the user pump, and a water outlet end of the water pump for the user is communicated with the workshop through a water pipe for the user.

According to the above technical scheme, the utility model provides a continuous rolling turbid circulating water purification system has following advantage:

the device optimizes the combination as integration facility with original once deposiing and secondary sedimentation to rivers in the whirl sedimentation tank are through overflow launder play water to advection sedimentation tank, cancel original whirl sedimentation tank in the well that absorbs water and a pressurization equipment, can save area, can practice thrift the energy consumption again, can also reduce running cost.

Meanwhile, depending on the fact that the iron oxide scale material pile is used as a filtering material, oil sludge and suspended matters in slurry water are intercepted, the single storage and dehydration functions of a traditional iron scale dehydration pool are changed, the filtering function is added, oil-containing slurry wastewater generated in a subsequent treatment process can be effectively purified, effluent quality is improved, equipment can be reduced, investment can be reduced, and operating cost can be saved. Moreover, equipment such as trestle and grab bucket crane can share, can improve resource utilization efficiency, can also further practice thrift the energy consumption.

Other features and advantages of the present invention will be set forth in the description that follows.

Drawings

The accompanying drawings are included to provide a further understanding of the technical solutions of the present invention, and are incorporated in and constitute a part of this specification, together with the embodiments of the present invention for explaining the technical solutions of the present invention, and do not constitute a limitation on the technical solutions of the present invention.

Fig. 1 is a schematic view of the overall structure of a continuous rolling turbid circulating water purification system in an embodiment of the present invention.

Description of reference numerals:

1. a workshop; 2. a scale runner; 3. a rotational flow sedimentation tank; 301. a cyclone tank body; 302. a central barrel; 303. a water inlet chute; 304. a magnetic flocculation dosing device; 305. an overflow trough; 306. a mud storage hopper; 4. a horizontal flow sedimentation tank; 401. a advection pool body; 402. a water distribution chute; 403. an oil flocculation dosing device; 404. a mud storage pit; 405. a water outlet baffle; 406. a hot water tank; 407. a lift pump; 408. a floating oil recovery device; 409. oil and slag scraping machine; 410. an oil skimming device; 411. an air flotation device; 5. a filter; 501. filtering the water inlet pipe; 502. filtering the water outlet pipe; 503. backwashing the water inlet pipe; 504. backwashing the drain pipe; 6. a cooling tower; 7. a cooling tank; 701. a water suction pipe for a user pump; 702. for the user to pump water; 703. a water pipe for users; 8. backwashing the water storage tank; 801. backwashing the water supply pump; 802. backwashing a water suction pipe; 9. a slurry adjusting tank; 901. a slurry pump suction pipe; 902. a slurry pump; 903. a slurry return pipe; 10. a sheet iron dehydration pool; 101. a water filtering and returning pipe; 11. a trestle; 12. grab bucket crane.

Detailed Description

To make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that, in the case of no conflict, the embodiments and features of the embodiments of the present invention may be arbitrarily combined with each other.

The embodiment of the utility model discloses a mill run turbid circulating water clean system is disclosed in this embodiment as shown in fig. 1, including workshop 1, scale chute 2, whirl sedimentation tank 3, advection sedimentation tank 4, filter 5, cooling tower 6, cooling tank 7, backwash tank 8, mud equalizing basin 9 and the iron sheet dehydration pond 10 that connect gradually.

The rotational flow sedimentation tank 3 comprises a rotational flow tank body 301, a central barrel 302 is vertically arranged in the rotational flow tank body 301, a water inlet flow groove 303 is arranged on the rotational flow tank body 301, one end of the water inlet flow groove 303 extends into the central barrel 302 and is communicated with the central barrel 302, the other end of the water inlet flow groove 303 is communicated with the iron scale flow groove 2, and the central barrel 302 is tangent to the water inlet flow groove 303. The side of the cyclone cell body 301 is provided with a magnetic flocculation dosing device 304, and a dosing pipe of the magnetic flocculation dosing device 304 is communicated with a water inlet flow groove 303 so as to realize stable dosing of the medicine.

Be provided with overflow launder 305 on the pond body 301, the one end and the pond body 301 intercommunication of overflow launder 305, the other end and 4 intercommunications of advection sedimentation tank, simultaneously, pond body 301's bottom is provided with stores up mud bucket 306, stores up mud bucket 306 and is located a center section of thick bamboo 302 under, stores up mud bucket 306 and is down trapezoidal arranging, and the contained angle between the lateral wall that stores up mud bucket 306 and the horizontal plane is 55.

After the turbid circulating water in the workshop 1 enters the water inlet flow groove 303 through the iron scale flow groove 2, the turbid circulating water enters the cyclone cell body 301 through the central cylinder 302, meanwhile, the magnetic flocculation dosing device 304 prepares a liquid medicine, the liquid medicine is mixed and then flows into the central cylinder 302 in the tangential direction, and small particle suspended substances in the water are gradually condensed into large particle flocculating constituents through the magnetic effect of the medicine. Under the action of gravity and centrifugal force, large-particle flocculants and iron scales quickly sink to the sludge storage hopper 306, and the separated water stably rises to the overflow groove 305 through the bottom of the cyclone tank body 301 and uniformly flows into the horizontal sedimentation tank 4.

The device optimally combines original primary sedimentation (cyclone sedimentation tank 3) and secondary sedimentation (horizontal sedimentation tank 4) into an integrated facility, and water flow in the cyclone sedimentation tank 3 flows out to the horizontal sedimentation tank 4 through the overflow groove 305, so that a water suction well and a primary pressurizing device in the original cyclone sedimentation tank 3 are eliminated, the floor area can be saved, the energy consumption can be saved, and the operation cost can be reduced.

The magnetic flocculation chemical adding device 304 is a device for adding a chemical into turbid circulating water, belongs to the prior art, and is not described herein. Similarly, in other embodiments, other types of dosing devices can be used, and only the functions can be satisfied. Meanwhile, the mud storage hopper 306 can also be in other shapes, and the included angle between the side wall of the mud storage hopper 306 and the horizontal plane can be selected according to actual requirements or actual places. Moreover, the central cylinder 302 and the water inlet flow groove 303 do not need to be tangent, and the tangency of the central cylinder 302 and the water inlet flow groove 303 is mainly used for prolonging the contact time and mixing effect of turbid circulating water and the medicament, so that the precipitation effect of the turbid circulating water is improved.

In one embodiment, as shown in fig. 1, the advection sedimentation tank 4 includes an advection tank body 401, a distribution launder 402 is provided in the advection tank body 401, and the overflow tank 305 communicates with the distribution launder 402 so that the turbid circulating water can overflow into the distribution launder 402 through the overflow tank 305. An oil flocculation dosing device 403 is arranged on the advection cell body 401, and a dosing pipe of the oil flocculation dosing device 403 extends into the water distribution groove 402 to realize stable dosing of the medicament.

In one embodiment, as shown in fig. 1, a mud storage pit 404 is provided at the bottom of the advection pool body 401, the mud storage pit 404 is in an inverted trapezoid arrangement, and the mud storage pit 404 is used for storing ferric oxide scale slag. Meanwhile, a water outlet baffle 405 is vertically arranged in the advection cell body 401, a hot water pool 406 is arranged in the advection cell body 401, the hot water pool 406 is positioned at the right side of the water outlet baffle 405, and the sludge storage pit 404 is positioned at the left side of the water outlet baffle 405. Meanwhile, a lift pump 407 is provided in the hot water tank 406, and the lift pump 407 is configured to pressurize and lift the water flow in the hot water tank 406 to the filter 5.

In one embodiment, as shown in fig. 1, the horizontal sedimentation tank 4 is sequentially provided with a floating oil recovery device 408, an oil and slag scraping machine 409 and an oil skimming device 410, and the oil collection of the floating oil recovery device 408 is dragged into the water distribution tank 402 to collect the floating oil. The oil and slag scraping machine 409 is used for scraping and pushing floating oil and iron oxide skin slag, the oil and slag scraping machine 409 scrapes the slag in a reverse water flow mode into the mud storage pit 404 and scrapes the oil in a forward water flow mode into the oil skimming device 410, and the oil skimming device 410 is used for skimming the floating oil.

In one embodiment, as shown in fig. 1, an air flotation device 411 is disposed on the horizontal flow tank 401, and an air dissolving pipe of the air flotation device 411 extends into the horizontal flow tank 401 to reduce the oil content and suspended solids in the effluent of the horizontal flow sedimentation tank 4, reduce the hardening of the filter material of the filter 5, reduce the replacement frequency of the filter material, avoid the formation of dirt and oil scale in the pipeline and the equipment, and prolong the service life of the equipment.

The oil flocculation chemical adding device 403, the floating oil recovery device 408, the oil scraping and slag scraping machine 409, the oil skimming device 410 and the air flotation device 411 are all the prior art, and are not described herein again, and similarly, in other embodiments, other devices may be used instead as long as the basic functions are satisfied.

In one embodiment, as shown in fig. 1, the filtering water inlet end of the filter 5 is communicated with a filtering water inlet pipe 501, and the filtering water inlet pipe 501 is communicated with the lift pump 407, so that the water flow in the hot water tank 406 can enter the filter 5. Meanwhile, the filtered water pipe 502 of the filter 5 is communicated with the filtered water pipe 502, and the filtered water pipe 502 is communicated with the water inlet end of the cooling tower 6, so that the water filtered by the filter 5 can enter the cooling tower 6.

In one embodiment, as shown in fig. 1, a backwash water inlet end of the filter 5 is communicated with a backwash water inlet pipe 503, a backwash water supply pump 801 is arranged on the backwash water inlet pipe 503, a backwash water suction end of the backwash water supply pump 801 is communicated with a backwash water suction pipe 802, and the backwash water suction pipe 802 is communicated with the backwash water storage tank 8 so as to realize stable extraction of clean water in the backwash water storage tank 8. Meanwhile, the backwashing water discharge end of the filter 5 is communicated with a backwashing water discharge pipe 504, and the backwashing water discharge pipe 504 is communicated with the slurry adjusting tank 9, so that stable discharge and recovery of clean water are realized.

In one embodiment, as shown in fig. 1, a user water pumping pipe 701 is communicated with the cooling tank 7, a user water pump 702 is arranged on the user water pumping pipe 701, and a water outlet end of the user water pump 702 is communicated with the workshop 1 through a user water pipe 703, so as to realize the recycling of clean water.

In one embodiment, as shown in fig. 1, the slurry adjusting tank 9 is communicated with a slurry pump water suction pipe 901, a slurry water pump 902 is arranged on the slurry water suction pipe, a slurry return pipe 903 is communicated with a water discharge end of the slurry water pump 902, and the slurry return pipe 903 is communicated with a spray pipe in the sheet iron dewatering tank 10.

In one embodiment, as shown in fig. 1, the scale dewatering tank 10 is in communication with the intake gutter 303 via a filtered water return 101 to enable turbid circulating water and the like in the scale dewatering tank 10 to enter the intake gutter 303. Meanwhile, a trestle 11 is arranged on the side of the iron sheet dehydration pool 10, a grab crane 12 is arranged on the trestle 11, the grab crane 12 can grab the iron oxide scale slag in the mud storage bucket 306 and the mud storage pit 404 into the iron sheet dehydration pool 10, and the iron oxide scale slag in the iron sheet dehydration pool 10 can be used as a filter material to filter turbid circulating water.

The continuous rolling turbid circulating water purification system in the embodiment is shown in the figure 1 in the using process:

in the production process of the workshop 11, the circulating cooling water is in direct contact with the surfaces of equipment and products, so that the water temperature is increased after the circulating cooling water is used, the circulating cooling water contains iron scales, oil substances and the like, the water flows into an iron scale flow groove 2, and the water flows into the central cylinder 302 in the tangential direction after being mixed with the liquid medicine prepared by the magnetic flocculation dosing device 304 through a water inlet flow groove 303. The small suspended particles in the water are gradually condensed into large particle flocculants under the action of the drug magnetism, the large particle flocculants and the iron scales rapidly sink to the sludge storage hopper 306 under the action of gravity and centrifugal force, and the separated water stably rises to the overflow groove 305 through the bottom of the cyclone sedimentation tank 3 and uniformly flows into the water distribution flow groove 402.

At this time, the liquid medicine prepared by the oil flocculation dosing device 403 and the water in the water distribution tank 402 are fully mixed and reacted, and then are uniformly distributed into the horizontal sedimentation tank 4 for secondary flocculation precipitation and oil removal, the surface floating oil in the water distribution tank 402 is adsorbed on a continuously rotating oil collecting dragging belt through the floating oil recovery device 408, the squeezing roller of the oil collecting tank of the floating oil recovery device 408 squeezes the dirty oil into the oil tank, and finally the dirty oil is pumped to the oil storage tank of the floating oil recovery device 408, so that the purpose of recovering the floating oil is achieved.

At this moment, most suspended impurities and fatlute can be got rid of through flocculation and precipitation to advection sedimentation tank 4, the oil that can not get rid of, attach on tiny iron oxide scale and light suspended solid surface in the aquatic, the oil in a large amount of micron order bubble adhesion aquatic in the advection sedimentation tank 4 is blown into through air supporting device 411, because of the adhesion density is less than water, quick come-up to the surface of water forms the oil slick layer, tiny granule iron oxide scale and suspended solid sink to the bottom of the pool, scrape sediment machine 409 with oil slick and dross and scrape to oil skimming device 410 and carry out recovery processing, scrape the sediment simultaneously to the mud pit 404.

Then, the effluent of the horizontal flow sedimentation tank 4 overflows to a hot water tank 406 through a water outlet baffle 405, is pressurized to a filter 5 through a lift pump 407, fine particle suspended matters in water are intercepted by a filter material in the filter 5, the requirement of the user on circulating water quality is met, then the effluent of the filter 5 flows to a cooling tower 6, the water temperature is reduced through a filler in the cooling tower 6, and the cooling water automatically flows into a cold water tank and is pressurized to a workshop 1 for recycling through a user water pump 702.

Meanwhile, the backwashing water storage tank 8 is used for meeting the backwashing water consumption storage volume of the filter 5, and is pressurized to the filter 5 through the backwashing water supply pump 801 to wash out suspended impurities and oil sludge trapped in the filter 5. The mud adjusting tank 9 is used for meeting the requirement of backwashing drainage storage adjusting volume of the filter 5. The backwashing water of the filter 5 is discharged into a mud adjusting tank 9 through a backwashing water discharge pipe 504 and is pressurized to an iron sheet dewatering tank 10 through a mud pump.

The iron sheet dehydration pool 10 not only has the functions of storage and dehydration, but also has the function of water filtration, impurities and oil sludge in slurry backflow water are intercepted and adhered by relying on iron sheet particle material piles as filter materials, and filtered water is discharged into a water inlet tank 303 through a water filtration return pipe 101 and is mixed with turbid water from a workshop 1 and discharged into a rotational flow sedimentation tank 3 for reuse.

The grab crane 12 is used for grabbing the iron oxide scale slag and sludge settled from the sludge storage bucket 306 and the sludge storage pit 404 to the scale dewatering tank 10, part of the iron oxide scale material is piled as a filter material, and the redundant part is periodically pulled away by a loading and unloading vehicle for recycling, so that the purification treatment of turbid circulating water is realized.

Compared with the original operation flow, the device is adopted to optimally combine the conventional primary sedimentation and secondary purification facilities into an integrated facility, optimize the water outlet mode of the cyclone sedimentation tank 3, and optimize the mode that the cyclone sedimentation tank 3 lifting pump 407 pumps water from a water suction well through a water suction pipe and pressurizes and lifts the water to the secondary purification facility into a water distribution tank from the overflow tank 305 to the horizontal sedimentation tank 4, so that the water occupation area of the water suction well and the operation cost of primary pressurization equipment are reduced.

Optimize the medicine program, concentrate the secondary purification facility and add medicine optimization for the dispersion and add medicine (including the medicament kind), add the medicine point and be 3 water inlets of whirl sedimentation tank and 4 water inlets of advection sedimentation tank respectively, improve the medicine can the effect, increase the reaction time and the flocculation time of medicament, through medicine magnetic action, can effectively improve out water quality of water, can also prevent pipeline and equipment corrosion, scale deposit.

Optimize the oil removal mode of oil slick, improve liquid level overflow deoiling regularly with whirl sedimentation tank 3, optimize for the deoiling of distribution chute 402, adopt oil slick recovery unit 408 to adsorb the surperficial oil slick of distribution chute 402, the oil slick is retrieved thoroughly, easy operation has improved the difficult problem of deoiling of whirl sedimentation tank 3.

Optimize 4 purifying effect of advection sedimentation tank, add air supporting device 411, reduce 4 play water oil content and suspended solid of advection sedimentation tank, the problem that the filter material hardens of slow reduction filter 5 reduces the filter material and changes the number of times, avoids the dirt of pipeline, equipment, oil dirt formation, extension equipment life.

The sludge treatment facility is optimized, the existing iron oxide scale granular material pile is utilized to remove suspended impurities and oil sludge in the slurry return water, the conventional sludge adjusting tank, the conventional sludge concentration tank and the conventional sludge dewatering facility are replaced, the problem of difficult sludge dewatering is solved, the occupied area is reduced, the investment is reduced, the operating cost is reduced, the dosage of a medicament can be reduced, the operation is simplified, the labor intensity is reduced, and the environment is improved.

The storage and dehydration functions of the conventional iron sheet dehydration tank 10 are optimized, the filtering function is increased, the oily slurry wastewater generated in the subsequent treatment process can be effectively purified, and the effluent quality of the sedimentation tank is improved.

Therefore, through optimized combination, the system can simplify the process, reduce equipment, reduce occupied area, reduce investment, reduce operation cost, is easy to operate, is convenient to manage, simple to overhaul, easy to maintain, low in labor intensity, reduce pollution, improve environment and has high practicability.

It should be noted that unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the present invention belongs.

Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification. In particular, the technical features mentioned in the embodiments can be combined in any way as long as there is no structural conflict. The present invention is not limited to the particular embodiments disclosed herein, but encompasses all technical solutions falling within the scope of the claims.

Claims

1. A continuous rolling turbid circulating water purification system is characterized by comprising a workshop (1), an iron scale trough (2), a rotational flow sedimentation tank (3), a horizontal flow sedimentation tank (4), a filter (5), a cooling tower (6), a cooling tank (7), a backwashing water storage tank (8), a slurry adjusting tank (9) and an iron scale dewatering tank (10) which are sequentially arranged;

the cyclone sedimentation tank (3) comprises:

the cyclone tank body (301) plays a role in storage;

a central barrel (302) vertically disposed within the cyclone cell body (301);

a water inlet flow groove (303), one end of which is communicated with the central cylinder (302), and the other end of which is communicated with the iron scale flow groove (2);

one end of the overflow groove (305) is communicated with the cyclone tank body (301), and the other end of the overflow groove is communicated with the horizontal flow sedimentation tank (4);

the sludge storage hopper (306) is arranged at the bottom of the cyclone tank body (301);

the magnetic flocculation dosing device (304) is arranged on the side of the cyclone tank body (301), and a dosing pipe of the magnetic flocculation dosing device (304) is communicated with the water inlet flow groove (303);

wherein, iron sheet dehydration pond (10) and intake runner (303) are through drainage wet return (101) intercommunication, the side in iron sheet dehydration pond (10) is provided with landing stage (11), be provided with grab bucket crane (12) on landing stage (11), grab bucket crane (12) can snatch the iron oxide skin sediment in mud storage hopper (306) and advection sedimentation tank (4) to iron sheet dehydration pond (10) in, just the iron oxide skin sediment in iron sheet dehydration pond (10) can be used as the filter material.

2. The tandem rolling turbid circulating water purification system according to claim 1, characterized in that the water inlet launder (303) extends deep inside the central cylinder (302), and the central cylinder (302) is tangential to the water inlet launder (303).

3. A continuous rolling turbid circulating water purification system according to claim 1, characterized in that the sludge storage hopper (306) is arranged in an inverted trapezoid shape, and the included angle between the side wall of the sludge storage hopper (306) and the horizontal plane is 55 °.

4. The tandem rolling turbid circulating water purification system according to claim 1, characterized in that the horizontal flow sedimentation tank (4) comprises:

the advection pool body (401) plays a role in storage;

the water distribution flow groove (402) is arranged in the advection pool body (401), and the overflow groove (305) is communicated with the water distribution flow groove (402);

the oil flocculation dosing device (403) is arranged on the advection pool body (401), and a dosing pipe of the oil flocculation dosing device (403) extends into the water distribution chute (402);

the mud storage pit (404) is arranged in the advection pool body (401) and is used for storing ferric oxide skin slag;

the water outlet baffle (405) is arranged in the advection pool body (401);

a hot water tank (406) arranged in the advection tank body (401);

a lift pump (407) disposed within the hot water basin (406);

wherein the lift pump (407) is used for lifting the water flow in the hot water basin (406) into the filter (5).

5. The tandem rolling turbid circulating water purification system according to claim 4, characterized in that the horizontal flow sedimentation tank (4) further comprises:

the oil and slag scraping machine (409) is used for scraping and pushing floating oil and iron oxide scale slag;

the floating oil recovery device (408) is arranged on the advection pool body (401), and the oil collection dragging of the floating oil recovery device (408) is deeply dragged into the water distribution groove (402);

an oil skimming device (410) for skimming the floating oil;

the oil and slag scraping machine (409) scrapes slag in a mud storage pit (404) against water flow and scrapes oil in a water flow to an oil skimming device (410).

6. The continuous rolling turbid circulating water purification system according to claim 5, characterized in that an air flotation device (411) is arranged on the advection tank body (401), and a dissolved air pipe of the air flotation device (411) extends into the advection tank body (401).

7. The continuous rolling turbid circulating water purification system as claimed in claim 4, characterized in that a filtering water inlet pipe (501) and a filtering water outlet pipe (502) are communicated with the filter (5), the filtering water inlet pipe (501) is communicated with a lift pump (407), and the filtering water outlet pipe (502) is communicated with a cooling tower (6).

8. The tandem rolling turbid circulating water purification system as claimed in claim 1, wherein a backwashing water inlet pipe (503) and a backwashing water outlet pipe (504) are communicated with the filter (5), the backwashing water outlet pipe (504) is communicated with the slurry regulating tank (9), a backwashing water supply pump (801) is arranged on the backwashing water inlet pipe (503), a backwashing water suction pipe (802) is communicated with a backwashing water suction end of the backwashing water supply pump (801), and the backwashing water suction pipe (802) is communicated with a backwashing water storage tank (8).

9. The purification system for the turbid circulating water after continuous rolling according to claim 1, characterized in that the mud adjusting tank (9) is communicated with a mud pump water suction pipe (901), a mud water pump (902) is arranged on the mud pump water suction pipe, the water suction end of the mud water pump (902) is communicated with a mud return pipe (903), and the mud return pipe (903) is communicated with a spray pipe in the sheet iron dewatering tank (10).

10. The purification system for the turbid circulating water produced by continuous rolling according to claim 1, wherein a user pump suction pipe (701) is communicated with the cooling pond (7), a user pump (702) is arranged on the user pump suction pipe (701), and the water outlet end of the user pump (702) is communicated with the workshop (1) through the user water pipe (703).