CN115054988B

CN115054988B - Wastewater purifier for metallurgical wastewater treatment

Info

Publication number: CN115054988B
Application number: CN202210984949.4A
Authority: CN
Inventors: 焦健
Original assignee: Jiangsu Handa Machinery Co ltd
Current assignee: Jiangsu Handa Machinery Co ltd
Priority date: 2022-08-17
Filing date: 2022-08-17
Publication date: 2022-10-25
Anticipated expiration: 2042-08-17
Also published as: CN115054988A

Abstract

The invention discloses a wastewater purifier for metallurgical wastewater treatment, which comprises a hopper bottom, wherein a purification tank is arranged at the upper end of the hopper bottom, and a sedimentation tank is arranged at the upper end of the purification tank. This waste water purifier for metallurgical waste water treatment, through when with the long barrel of cooling waste water guide is inboard, accessible cold water advances the pipe and sends into cold water to annular barrel chamber inboard, through heat-conduction, exchange the surplus heat that contains in the cooling waste water to cold water, carry out recycle with the waste heat in the cooling waste water, with the value maximize of cooling waste water, need not to open the top jar of body, can accomplish the light of the internal inboard spot of top jar and clean, can carry out vortex guide collection with the part fine particle in the cooling waste water, carry out recycle to cooling waste water, water economy resource, reduce the input cost of coolant liquid in the metallurgical flow.

Description

Wastewater purifier for metallurgical wastewater treatment

Technical Field

The invention relates to the technical field of metallurgical wastewater treatment, in particular to a wastewater purifier for metallurgical wastewater treatment.

Background

The metallurgical industry has a plurality of products, each series of production flows can discharge a large amount of waste water, which is one of main waste water polluting the environment, and the circulating water is an important measure for treating the metallurgical waste water, so that the comprehensive utilization is developed, useful substances and heat energy are recovered from the waste water, and the loss of material fuel is reduced; various water used in enterprises are comprehensively balanced and used in series flow according to different water quality requirements, and meanwhile, water quality stabilizing measures are improved, so that the cyclic utilization rate of water is continuously improved, and therefore, a treatment device suitable for cooling wastewater generated in metallurgy is needed.

Current metallurgical waste water is waste water purifier for treatment, can't carry out filtration purification recycle to cooling waste water, carry out recycle to the waste heat in the cooling waste water, realize the maximize of cooling waste water value, make the heat in the cooling waste water lose futilely, need open the clarifier and just can wash the maintenance to the structural component of inside, cause the manual maintenance cost height of clarifier, can't carry out the filtration load that the preliminary treatment alleviateed the filter bed to the part fine particle in the cooling waste water.

Disclosure of Invention

In order to solve the technical problem, the invention provides a wastewater purifier for metallurgical wastewater treatment, which comprises a hopper bottom, wherein a purification tank is arranged at the upper end of the hopper bottom, a sedimentation tank is arranged at the upper end of the purification tank, a sealing cover is arranged at the upper end of the sedimentation tank, a motor is arranged in the middle of the upper end of the sealing cover, a filter material layer is arranged on the inner side of the purification tank, a sewage guide mechanism is arranged at the upper end of the filter material layer, one side of the bottom surface of the hopper is connected with a water return pipe, the other side of the bottom surface of the hopper is connected with a heat return pipe, the inner part of the hopper bottom is hollow, and the filter material layer is sequentially provided with a pebble cushion layer, a primary silica sand filter material layer and a secondary silica sand filter material layer from top to bottom.

Preferably, the purifying tank comprises a long barrel, the lower side of the surface of the long barrel is connected with a backflushing pipe, the upper side of the surface of the long barrel is connected with cold water inlet pipes, the other side of the surface of the long barrel is connected with a first sewage discharge pipe, the inner wall of the long barrel is provided with an annular barrel cavity, and the inner wall surface of the annular barrel cavity is connected with a plurality of heat exchange rings at equal intervals.

Preferably, the lead screw is passed through to long barrel bottom and the end flange mounting of falling hopper, the recoil pipe runs through long barrel inner wall and stretches into long barrel inboardly, just long barrel inner wall is close to the lower port and is hourglass hopper-shaped and sets up, cold water advances the pipe and runs through long barrel inner wall and stretches into annular barrel intracavity side, the funnel portion that cobble bed course, one-level silica sand filtering material layer, second grade silica sand filtering material layer were installed on long barrel inner wall by last gomphosis under to in proper order, the backheating pipe runs through at the bottom of the falling hopper, long barrel and stretches into annular barrel intracavity side in proper order, the wet return runs through at the bottom of the falling hopper, long barrel and stretches into long barrel inboardly.

Preferably, the sedimentation tank comprises a top tank body, the inner wall of the top tank body is in a hollow arrangement and is communicated with the annular cylinder cavity, the surface of the upper end of the sealing cover is connected with an inlet pipe, a water level rod is arranged on the inner side of the top tank body, a floating ball is arranged at the bottom end of the water level rod, a second sewage discharge pipe is connected on the surface of the top tank body, a partition plate is fixedly connected to the bottom plate on the inner side of the top tank body, and a guide pipe is fixedly arranged in the middle of the partition plate.

Preferably, the internal side of top jar is divided into drip chamber and drainage room through bottom plate and baffle cooperation, the import pipe runs through the closing cap and is linked together with the drip chamber of the internal side of top jar, the closing cap passes through lead screw and the flange mounting of the internal upper end of top jar, two run through the top jar of body and keep level with the bottom plate of the internal side of top jar of blow off pipe, install the suction pump on the honeycomb duct.

Preferably, the sealing ring is installed at the position where the water level rod and the sealing cover coincide, the water level rod is installed through the lifting of the sealing ring and the sealing cover, a round opening is formed in the bottom plate on the inner side of the top tank body, the lower end of the flow guide pipe is matched with the round opening correspondingly, a water-closing ring is installed between the long cylinder body and the top tank body in an embedded mode, and the upper end of the long cylinder body is installed with a flange at the lower end of the top tank body through a screw rod.

Preferably, lead dirty mechanism and include a well cavity section of thick bamboo, well cavity section of thick bamboo fixed surface is connected with the paddle, plays the stirring drainage effect to cooling waste water to the distribution trend of guide fine particle, just a plurality of water conservancy diversion subassemblies are installed to well cavity section of thick bamboo lower extreme, and install the ball of accomodating of well cavity section of thick bamboo lower extreme, palirrhea mechanism is installed to well cavity section of thick bamboo inboard, accomodate ball upper end gomphosis and install the bearing, the bearing upper end is connected with screwed pipe two, accomodate the ball through bearing and two cooperations of screwed pipe and well cavity section of thick bamboo composite erection.

Preferably, the pivot pole of motor lower extreme runs through closing cap, the internal side bottom plate of top jar in proper order and stretches into long barrel inboard, is convenient for will lead that dirty mechanism's whole hoist and mount in the internal side of top jar body bottom promptly long barrel, and wherein, the bearing is all installed at the position that pivot pole and closing cap, the internal side bottom plate of top jar coincide mutually, well cavity section of thick bamboo upper end is through pivot pole and the rotatory installation of motor, the blow off pipe runs through long barrel and extends to and accomodate the ball inboard, just it has seted up a plurality of one-way infiltration holes to accomodate the ball surface, is convenient for in time derive the inboard cooling waste water of ball to get into.

Preferably, the water conservancy diversion subassembly includes the nozzle stub, the port is connected with screwed pipe one on the nozzle stub, just nozzle stub surface connection has the delay to fight, and sets up the mouth of fanning on nozzle stub surface, the slope of fan mouth inner wall is connected with leads the fan to one side, catches drainage to mouth of fanning to the part fine particle in the cooling wastewater that will be the vortex form operation, just it is the same with the orientation of paddle to lead the fan to one side, the delay is fought through the nozzle stub and is led the corresponding cooperation of fan to one side, the nozzle stub passes through screwed pipe one and well cavity section of thick bamboo composite set, just nozzle stub, well cavity section of thick bamboo inboard are the cavity setting, well cavity section of thick bamboo hangs through the pivot pole of motor lower extreme and establishes and installs in the filter material layer upper end.

Preferably, the palirrhea mechanism includes the cardboard, dirty hole is seted up on the cardboard surface, and it is inboard at the storage ball to be convenient for swiftly carry the guide of partial fine particle, just the cardboard lower extreme is connected with the jib, the jib lower extreme is connected with the sash weight, improves palirrhea mechanism bottom at the inboard weight of screwed pipe two, is used for ensuring the guide piece to hydraulic resistance, the sash weight surface is circular array and is connected with the guide piece, is the heliciform with the fine particle and guides into the storage ball inboard to can only introduce and collect the fine particle through the reversal of following the guide piece, prevent that the fine particle that is collected from taking in the ball reverse reflux and reveal, the cardboard gomphosis is installed in the cavity section of thick bamboo inboard, just the sash weight is through the cavity section of thick bamboo and take in two combination installations of ball cooperation and screwed pipe, combines the guide piece and the inseparable cooperation of screwed pipe two, realizes better anti-return function.

The invention provides a wastewater purifier for treating metallurgical wastewater. The method has the following beneficial effects:

1. this metallurgical waste water is waste water purifier for treatment, through when leading the long barrel of cooling waste water inboard, accessible cold water advances the pipe and sends into cold water to annular barrel chamber inboard, utilize heat transfer ring increase cold water and annular barrel intracavity wall area of contact, through heat-conduction, the surplus heat that contains in the cooling waste water exchanges to cold water, via backheating pipe at last, the cold water that will be heated carries out recycle, when purifying filterable to cooling waste water, carry out recycle with the waste heat in the cooling waste water, with the value maximize of cooling waste water.

2. This waste water purifier for metallurgical waste water treatment, add the deposit in the drip chamber through import pipe with cooling waste water, then cooling waste water after the deposit passes through the suction pump suction on the honeycomb duct in the long barrel, wherein, when to the drip chamber input cooling waste water, the water level pole on the accessible floater, know directly perceivedly whether the cooling waste water weight of adding reaches the maximum value, prevent cooling waste water from spilling over with this, simultaneously provide the gap with external intercommunication via the position of water level pole and closing cap coincidence, it is the same with external atmospheric pressure to keep the internal atmospheric pressure of a jar, take the clean back of cooling waste water drainage in the drip chamber, the accessible is opened two automatic discharges of coarse grain that will deposit of blow off pipe, also can wash the drip chamber through import pipe, need not to open a jar body, can accomplish the light of the internal side spot of tank of roof and clean, manpower and materials are saved, the whole maintenance and the flow of cleaning of simplification clarifier.

3. This metallurgical wastewater is waste water purifier for treatment, it is rotatory at the purifying tank inboard to lead dirty mechanism through the starter motor drive, it is inboard rotatory at the long barrel to utilize the paddle to drive cooling wastewater, can carry out the drainage operation with the form of swirl on the precoat with cooling wastewater, can carry out the vortex guide with the part fine particle among the cooling wastewater and collect, the guide is accomodate to the nozzle stub inboard, and via the nozzle stub, well hollow cylinder and the intercommunication of accomodating the ball inside, finally collect the fine particle inside accomodating the ball, then can discharge the fine particle in unison via a blow off pipe.

4. This metallurgical waste water is waste water purifier for water treatment through the rivers form of vortex form for cooling waste water fully contacts with the filter material layer, and final tegument layer filters to the downside of long barrel, is purified to the cleanest state, then carries out recycle to cooling waste water via the wet return, and the water economy resource reduces the input cost of coolant liquid in the metallurgical flow.

Drawings

FIG. 1 is a schematic view showing an external structure of a wastewater purifier for metallurgical wastewater treatment according to the present invention;

FIG. 2 is a schematic diagram of the structure of the purification tank and the sedimentation tank according to the present invention;

FIG. 3 is a schematic view of the construction of the purification tank of the present invention;

FIG. 4 is a schematic view of the structure of the sedimentation tank of the present invention;

FIG. 5 is a schematic structural view of a motor and a dirt guiding mechanism of the present invention;

FIG. 6 is a schematic view of the construction of the diversion assembly and the reverse flow mechanism of the present invention;

FIG. 7 is a schematic view of the structure of the flow guide assembly of the present invention;

fig. 8 is a schematic structural view of the reflux mechanism of the present invention.

In the figure: 1. pouring the hopper bottom; 2. a purification tank; 21. a long cylinder; 22. back flushing the pipe; 23. a cold water inlet pipe; 24. a first sewage discharge pipe; 25. a heat exchange ring; 3. a sedimentation tank; 31. carrying out tank jacking; 32. an inlet pipe; 33. a water level rod; 34. a second sewage discharge pipe; 35. a partition plate; 36. a flow guide pipe; 4. sealing the cover; 5. a motor; 6. a filter material layer; 7. a dirt guiding mechanism; 71. a hollow cylinder; 72. a paddle; 73. a flow guide assembly; 731. a short pipe; 732. a first threaded pipe; 733. a retention hopper; 734. an oblique guide fan; 74. receiving the ball; 75. a reflux mechanism; 751. clamping a plate; 752. a boom; 753. hanging a hammer; 754. a guide piece; 76. a second threaded pipe; 8. a water return pipe; 9. and a heat return pipe.

Detailed Description

Example 1

As shown in fig. 1, fig. 2 and fig. 5, the present invention provides a technical solution: a waste water purifier for metallurgical waste water treatment comprises a hopper bottom 1, a purifying tank 2 is arranged at the upper end of the hopper bottom 1, a sedimentation tank 3 is arranged at the upper end of the purifying tank 2, a sealing cover 4 is arranged at the upper end of the sedimentation tank 3, a motor 5 is arranged in the middle of the upper end of the sealing cover 4, a filter material layer 6 is arranged at the inner side of the purifying tank 2, a sewage guide mechanism 7 is arranged at the upper end of the filter material layer 6, one side of the surface of the hopper bottom 1 is connected with a water return pipe 8, the other side of the surface of the hopper bottom 1 is connected with a heat return pipe 9, the inner part of the hopper bottom 1 is hollow, the filter material layer 6 is sequentially provided with a pebble cushion layer, a primary silica sand filter material layer and a secondary silica sand filter material layer from top to bottom, the purifying tank 2 comprises a long cylinder 21, a back flushing pipe 22 is connected to the lower side of the surface of the long cylinder 21, a cold water inlet pipe 23 is connected to the upper side of the surface of the long cylinder 21, and a first blow-off pipe 24 is connected to the other side of the surface of the long cylinder 21, annular barrel chamber has been seted up to long barrel 21 inner wall, the inner wall surface equidistance in annular barrel chamber is connected with a plurality of heat transfer rings 25, long barrel 21 bottom is through 1 upper end flange mounting at the bottom of lead screw and the hopper, recoil pipe 22 runs through long barrel 21 inner wall and stretches into long barrel 21 inboard, and long barrel 21 inner wall is close to down the port and is lou hopper-shaped setting, cold water inlet pipe 23 runs through long barrel 21 inner wall and stretches into annular barrel chamber inboard, the cobble bed course, the one-level silica sand filtering material layer, the second grade silica sand filtering material layer is by last to lower funnel portion of installing on long barrel 21 inner wall of gomphosis in proper order, backheat pipe 9 runs through at the bottom of the hopper 1 in proper order, long barrel 21 and stretch into annular barrel chamber inboard, wet return 8 runs through at the bottom of the hopper 1, long barrel 21 and stretch into long barrel 21 inboard.

When the cooling wastewater purification device is used, cooling wastewater is conveyed into the inner side of the sedimentation tank 3 for standing and sedimentation for a period of time, then the cooling wastewater is conveyed into the inner side of the purification tank 2, the starting motor 5 drives the dirt guiding mechanism 7 to stir the cooling wastewater, part of fine particles are collected in the containing ball 74 through the dirt guiding mechanism 7, then the other part of fine particles in the cooling wastewater are filtered layer by layer through the filter material layer 6, finally purified and retained at the bottommost part of the long cylinder 21, and recovered and reused through the water return pipe 8, so that the purification and the recovery and reuse of the cooling wastewater by the wastewater purifier are completed;

the cooling wastewater is guided to the inner side of the long cylinder 21, meanwhile, the cold water can be fed into the inner side of the annular cylinder cavity through the cold water inlet pipe 23, the contact area between the cold water and the inner wall of the annular cylinder cavity is increased by utilizing the heat exchange ring 25, the residual heat contained in the cooling wastewater is exchanged into the cold water through heat conduction, finally, the heated cold water is recycled through the heat return pipe 9, the cooling wastewater is purified and filtered, meanwhile, the residual heat in the cooling wastewater is recycled, and the value of the cooling wastewater is maximized;

the purified water can be conveyed to the inner side of the long cylinder 21 through the backflushing pipe 22, the filter material layer 6 in the long cylinder 21 is backflushed, purified water can be simultaneously injected into a sedimentation tank on the inner side of the top tank body 31 through the inlet pipe 32, then the water suction pump on the flow guide pipe 36 is started, the inner side of the long cylinder 21 is flushed through the upper port of the long cylinder 21, the dirt guide mechanism 7 is controlled by the motor 5 to rotate on the inner side of the long cylinder 21, most particles on the inner side of the filter material layer 6 can be collected in the containing ball 74, and finally the particles are discharged through the first drain pipe 24, so that the automatic backflushing cleaning function of the cooling wastewater purifier is realized, and the labor cost for cleaning and maintaining the internal structure is saved.

Example 2

As shown in fig. 1, 2 and 4, the sedimentation tank 3 includes a top tank 31, the inner wall of the top tank 31 is hollow and is communicated with an annular cylinder cavity, the upper end surface of the sealing cover 4 is connected with an inlet pipe 32, the inner side of the top tank 31 is provided with a water level rod 33, the bottom end of the water level rod 33 is provided with a floating ball, the surface of the top tank 31 is connected with a second sewage discharge pipe 34, the inner bottom plate of the top tank 31 is fixedly connected with a partition plate 35, the middle part of the partition plate 35 is fixedly provided with a flow guide pipe 36, the inner side of the top tank 31 is divided into a sedimentation chamber and a drainage chamber through the cooperation of the bottom plate and the partition plate 35, the inlet pipe 32 penetrates through the sealing cover 4 and is communicated with the sedimentation chamber on the inner side of the top tank 31, the sealing cover 4 is mounted with a flange on the upper end of the top tank 31 through a screw rod, the second sewage discharge pipe 34 penetrates through the top tank 31 and is level with the bottom plate on the inner side of the top tank 31, the flow guide pipe 36 is provided with a water pump, the position where the water level rod 33 coincides with the sealing cover 4, the sealing ring is mounted on the bottom plate on the inner side of the top tank 31, the bottom plate, the bottom end of the top tank 31 is correspondingly matched with the top tank, and the top tank, the top tank 31, and the long cylinder 31 are mounted through the long cylinder 31, and the long cylinder 31.

During the use, add cooling wastewater through import pipe 32 and deposit in the drip chamber, then the cooling wastewater after the sediment passes through the suction pump suction on honeycomb duct 36 and in the long barrel 21, wherein, when importing cooling wastewater to the drip chamber, water level pole 33 on the accessible floater, know directly perceivedly whether the cooling wastewater weight that adds reaches the maximum value, prevent cooling wastewater from spilling over with this, provide the gap with external intercommunication via the position of water level pole 33 and closing cap 4 coincidence simultaneously, keep the atmospheric pressure the same with external atmospheric pressure inside the jar of top body 31, take the clean back of cooling wastewater drainage in the drip chamber, the accessible is opened drain pipe two 34 and is discharged the coarse grain of sediment automatically, also can wash the drip chamber through import pipe 32, need not to open a jar of body 31, can accomplish and easily clean the spot material resources inboard of the jar of top jar of body 31, save manpower, simplify the whole maintenance and the flow of cleaning of clarifier.

Example 3

As shown in fig. 5, 6, 7 and 8, the dirt guiding mechanism 7 includes a hollow cylinder 71, blades 72 are fixedly connected to the surface of the hollow cylinder 71, the blades play a role of stirring and guiding the cooling wastewater and guide the distribution direction of fine particles, a plurality of flow guiding components 73 are mounted at the lower end of the hollow cylinder 71, and a receiving ball 74 is mounted at the lower end of the hollow cylinder 71, a backflow mechanism 75 is mounted inside the hollow cylinder 71, a bearing is mounted at the upper port of the receiving ball 74 in an embedded manner, a second threaded pipe 76 is connected to the upper end of the bearing, the receiving ball 74 is mounted in combination with the hollow cylinder 71 through the bearing and the second threaded pipe 76, a rotating shaft rod at the lower end of the motor 5 sequentially penetrates through the sealing cover 4 and the bottom plate at the inner side of the top can 31 and extends into the inner side of the long can 21, so that the dirt guiding mechanism 7 is integrally hung at the bottom end of the top can 31 and the inner side of the long can 21, wherein bearings are mounted at the positions where the rotating shaft rod coincides with the sealing cover 4 and the bottom plate at the inner side of the top can 31, the upper end of the hollow cylinder 71 is rotatably installed with the motor 5 through a rotating shaft rod, the first sewage discharge pipe 24 penetrates through the long cylinder 21 and extends to the inner side of the containing ball 74, the surface of the containing ball 74 is provided with a plurality of one-way water seepage holes, so that cooling wastewater entering the inner side of the containing ball 74 can be guided out in time, the flow guide component 73 comprises a short pipe 731, the upper port of the short pipe 731 is connected with a first threaded pipe 732, the surface of the short pipe 731 is connected with a retention bucket 733 and a fan opening arranged on the surface of the short pipe 731, the inner wall of the fan opening is obliquely connected with an inclined guide fan 734, part of fine particles in the cooling wastewater which runs in a vortex shape are captured and drained to the fan opening, the inclined guide fan 734 and the blades 72 are in the same direction, the retention bucket 733 is correspondingly matched with the inclined guide fan 734 through the short pipe 731, the short pipe 731 is installed with the hollow cylinder 71 through the first threaded pipe 732, and the inner sides of the short pipe 731 and the hollow cylinder 71 are both hollow cylinder 71 are hollow, the hollow cylinder 71 is arranged at the upper end of the filter material layer 6 in a hanging mode through a rotating shaft rod at the lower end of the motor 5, the backflow mechanism 75 comprises a clamping plate 751, a dirt guide hole is formed in the surface of the clamping plate 751, a part of fine particles are conveniently and quickly guided and conveyed inside the containing ball 74, a hanging rod 752 is connected to the lower end of the clamping plate 751, a hanging hammer 753 is connected to the lower end of the hanging rod 752, the weight of the bottom of the backflow mechanism 75 at the inner side of the second threaded pipe 76 is increased and used for guaranteeing the resistance of the guiding sheet 754 to water pressure, the guiding sheet 754 is connected to the surface of the hanging hammer 753 in a circular array and guides the fine particles into the inner side of the containing ball 74 in a spiral mode, the fine particles can be guided and collected only through the compliance of the guiding sheet 754 in a reverse direction, the collected fine particles are prevented from reversely flowing back and leaking from the containing ball 74, the clamping plate 751 is arranged inside the hollow cylinder 71 in a chimeric mode, the hanging hammer 753 is combined with the second threaded pipe 76 through the hollow cylinder 71 and the containing ball 74 in a matched mode, and the guiding sheet 754 is tightly matched with the second threaded pipe 76, and a better backflow prevention function is achieved.

When the device is used, the starting motor 5 drives the sewage guide mechanism 7 to rotate on the inner side of the purification tank 2, the blades 72 are used for driving cooling wastewater to rotate on the inner side of the long cylinder body 21, the cooling wastewater can be guided to rotate on the filter material layer 6 in a vortex mode, part of fine particles in the cooling wastewater can be guided and stored to the inner side of the short pipe 731 through the inclined guide fan 734 connected with the inner wall of the fan opening, and are communicated with the interior of the storage ball 74 through the short pipe 731 and the hollow cylinder 71, finally the fine particles are collected in the storage ball 74, and then the fine particles can be uniformly discharged through the first sewage discharge pipe 24;

surplus fine particle among the cooling waste water through the rivers form of vortex form for cooling waste water fully contacts with precoat 6, and the layer filters to the downside of long barrel 21 finally, is purified to the cleanest state, then can carry again to original coolant liquid return line via wet return 8 in, recycles, and the input cost of coolant liquid in the metallurgical flow is reduced to the water economy resource.

It is to be understood that the described embodiments are merely a few embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by one of ordinary skill in the art and related arts based on the embodiments of the present invention without any creative effort, shall fall within the protection scope of the present invention. Structures, devices, and methods of operation not specifically described or illustrated herein are generally practiced in the art without specific recitation or limitation.

Claims

1. The utility model provides a metallurgical waste water clarifier for waste water treatment, includes hopper bottom (1), its characterized in that: the improved sewage treatment device is characterized in that a purification tank (2) is arranged at the upper end of the inverted bucket bottom (1), a sedimentation tank (3) is arranged at the upper end of the purification tank (2), a sealing cover (4) is arranged at the upper end of the sedimentation tank (3), a motor (5) is arranged in the middle of the upper end of the sealing cover (4), a filter material layer (6) is arranged on the inner side of the purification tank (2), a sewage guide mechanism (7) is arranged at the upper end of the filter material layer (6), one side of the surface of the inverted bucket bottom (1) is connected with a water return pipe (8), the other side of the surface of the inverted bucket bottom (1) is connected with a heat return pipe (9), the interior of the inverted bucket bottom (1) is hollow, and a pebble cushion layer, a primary silica sand filter material layer and a secondary silica sand filter material layer are sequentially arranged from top to bottom on the filter material layer (6);

the purification tank (2) comprises a long barrel body (21), a back flushing pipe (22) is connected to the lower side of the surface of the long barrel body (21), a cold water inlet pipe (23) is connected to the upper side of the surface of the long barrel body (21), a first sewage discharge pipe (24) is connected to the other side of the surface of the long barrel body (21), an annular barrel cavity is formed in the inner wall of the long barrel body (21), and a plurality of heat exchange rings (25) are connected to the surface of the inner wall of the annular barrel cavity at equal intervals;

the dirt guiding mechanism (7) comprises a hollow cylinder (71), paddles (72) are fixedly connected to the surface of the hollow cylinder (71), a plurality of flow guide assemblies (73) are installed at the lower end of the hollow cylinder (71), and a containing ball (74) is installed at the lower end of the hollow cylinder (71), a reverse flow mechanism (75) is installed on the inner side of the hollow cylinder (71), a bearing is installed at an upper end opening of the containing ball (74) in an embedded mode, a threaded pipe II (76) is connected to the upper end of the bearing, and the containing ball (74) is installed with the hollow cylinder (71) in a combined mode through the matching of the bearing and the threaded pipe II (76);

a rotating shaft rod at the lower end of the motor (5) sequentially penetrates through the sealing cover (4) and the bottom plate on the inner side of the top tank body (31) and extends into the inner side of the long cylinder body (21), bearings are arranged at the positions of the rotating shaft rod, which are overlapped with the sealing cover (4) and the bottom plate on the inner side of the top tank body (31), the upper end of the hollow cylinder (71) is rotatably arranged with the motor (5) through the rotating shaft rod, the first sewage discharge pipe (24) penetrates through the long cylinder body (21) and extends to the inner side of the storage ball (74), and a plurality of one-way water seepage holes are formed in the surface of the storage ball (74);

the flow guide assembly (73) comprises a short pipe (731), the upper port of the short pipe (731) is connected with a first threaded pipe (732), the surface of the short pipe (731) is connected with a retention bucket (733) and a fan opening formed in the surface of the short pipe (731), the inner wall of the fan opening is connected with an inclined guide fan (734) in an inclined mode, the inclined guide fan (734) and the blades (72) are in the same direction, the retention bucket (733) is correspondingly matched with the inclined guide fan (734) through the short pipe (731), the short pipe (731) is assembled and installed with the hollow cylinder (71) through the first threaded pipe (732), the inner sides of the short pipe (731) and the hollow cylinder (71) are both arranged in a hollow mode, and the hollow cylinder (71) is installed at the upper end of a shaft lever of the filter material layer (6) through the rotating and hanging mode of the lower end of the motor (5);

the backflow mechanism (75) comprises a clamping plate (751), wherein a dirt guide hole is formed in the surface of the clamping plate (751), a hanging rod (752) is connected to the lower end of the clamping plate (751), hanging hammers (753) are connected to the lower end of the hanging rod (752), guide pieces (754) are connected to the surface of the hanging hammers (753) in a circular array mode, the clamping plate (751) is installed on the inner side of a hollow barrel (71) in a jogged mode, and the hanging hammers (753) are installed on a threaded pipe II (76) in a combined mode through matching of the hollow barrel (71) and storage balls (74).

2. A waste water purifier for metallurgical waste water treatment according to claim 1, characterized in that: the utility model discloses a long barrel (21) bottom is through lead screw and the end of fighting (1) upper end flange mounting, back flush pipe (22) run through long barrel (21) inner wall and stretch into long barrel (21) inboardly, just long barrel (21) inner wall is close to down the port and is lou hopper-shaped setting, cold water advances pipe (23) to run through long barrel (21) inner wall and stretch into annular barrel chamber inboard, cobble bed course, one-level silica sand filtering material layer, second grade silica sand filtering material layer are by last to lower in proper order the gomphosis install the funnel portion on long barrel (21) inner wall, backheat pipe (9) run through in proper order at the end of the fighting (1), long barrel (21) and stretch into annular barrel chamber inboard, wet return (8) run through at the end of the fighting (1), long barrel (21) and stretch into long barrel (21) inboard.

3. A waste water purifier for metallurgical waste water treatment according to claim 1, characterized in that: sedimentation tank (3) are including a jar body (31), a jar body (31) inner wall is cavity setting and is linked together with annular cylinder chamber, closing cap (4) upper end surface is connected with import pipe (32), a water level pole (33) is installed to a jar body (31) inboard, the floater is installed to water level pole (33) bottom, just a jar body (31) surface is connected with blow off pipe two (34), fixedly connected with baffle (35) on a jar body (31) inboard bottom plate, baffle (35) middle part fixed mounting has honeycomb duct (36).

4. A waste water purifier for metallurgical waste water treatment according to claim 3, characterized in that: the top jar of body (31) is inboard to be divided into drip chamber and drainage room through bottom plate and baffle (35) cooperation, import pipe (32) run through closing cap (4) and be linked together with the drip chamber of the top jar of body (31) inboard, closing cap (4) are through lead screw and the installation of the upper end flange of the top jar of body (31), blow off pipe two (34) run through the top jar of body (31) and hold flat mutually with the bottom plate of the top jar of body (31) inboard, install the suction pump on honeycomb duct (36).

5. A waste water purifier for metallurgical waste water treatment according to claim 4, characterized in that: the sealing ring is installed with the position of closing cap (4) coincidence in water level pole (33), water level pole (33) are through sealing ring and closing cap (4) lift installation, the round mouth has been seted up on the bottom plate of the jar body (31) inboard of top, honeycomb duct (36) lower extreme and the corresponding cooperation of round mouth, the water ring that closes is installed to gomphosis between the long barrel (21) and the jar body (31) of top, lead screw and the jar body (31) lower extreme flange mounting are passed through to long barrel (21) upper end.