CN111892139B - Environment-friendly treatment method for wastewater of steel plant - Google Patents
Environment-friendly treatment method for wastewater of steel plant Download PDFInfo
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- CN111892139B CN111892139B CN202010792078.7A CN202010792078A CN111892139B CN 111892139 B CN111892139 B CN 111892139B CN 202010792078 A CN202010792078 A CN 202010792078A CN 111892139 B CN111892139 B CN 111892139B
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/0012—Settling tanks making use of filters, e.g. by floating layers of particulate material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/02—Settling tanks with single outlets for the separated liquid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/24—Feed or discharge mechanisms for settling tanks
- B01D21/2444—Discharge mechanisms for the classified liquid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/24—Feed or discharge mechanisms for settling tanks
- B01D21/245—Discharge mechanisms for the sediments
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/16—Nature of the water, waste water, sewage or sludge to be treated from metallurgical processes, i.e. from the production, refining or treatment of metals, e.g. galvanic wastes
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- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Screw Conveyors (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention relates to the technical field of wastewater treatment, in particular to an environment-friendly treatment method for wastewater of a steel plant, which uses a wastewater treatment device, wherein the wastewater treatment device is used for carrying out environment-friendly treatment on the wastewater of the steel plant and comprises a plurality of processes of precipitation treatment, sewage discharge, precipitate discharge and the like.
Description
Technical Field
The invention relates to an environment-friendly treatment method for wastewater of a steel plant, belonging to the technical field of wastewater treatment.
Background
The proportion of cooling water in the metallurgical wastewater is the largest. Cooling water indirect cooling water and direct cooling water. The indirect cooling water is not polluted by other substances and can be recycled after being cooled; direct cooling water, such as cooling water for a rolling mill roller and a roller way, cooling water for metal cast ingots and the like, is contacted with products, so that the water temperature is increased after the direct cooling water is used, the water also contains oil, iron scales and other substances, if the direct cooling water is discharged outside, deposition and thermal pollution are caused to a water body, and floating oil can harm aquatic organisms. The method has great significance for the influence of the environmental protection treatment of the steel mill wastewater on the ecological environment, the mode of separating and treating the sediment in the wastewater from the sewage in the process of the environmental protection treatment of the steel mill wastewater is also a crucial part, and a plurality of processes such as sediment treatment, sewage discharge, sediment discharge and the like are required in the key treatment process.
Sedimentation tank deposits and is one of metallurgical waste water treatment's major process, at present, often utilizes the deposit in screw conveyer discharge sedimentation tank, but screw conveyer's mounted position is fixed, mostly is the horizontality, and is higher to the waterproof requirement of one end of screw conveyer installation motor, not only incremental cost, and the later stage need be changed the waterproof construction of screw conveyer installation motor one end moreover, and the management is inconvenient.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide an environment-friendly treatment method for wastewater of a steel plant, so as to solve the problems in the background technology.
In order to realize the purpose, the invention is realized by the following technical scheme: an environment-friendly treatment method for wastewater of a steel plant uses a wastewater treatment device, and the environment-friendly treatment of the wastewater of the steel plant by adopting the wastewater treatment device comprises the following steps;
step one, performing precipitation treatment, namely injecting the wastewater into a precipitation tank and standing to enable precipitates in the wastewater to be precipitated at the bottom of the precipitation tank;
discharging sewage, pumping out the precipitated sewage, wherein the precipitate is positioned at the bottom of the sedimentation tank, and the precipitate in the sedimentation tank after the sewage is pumped out is retained at the bottom;
discharging the precipitate, namely discharging the wastewater precipitate remained in the sedimentation tank into the sedimentation tank, and collecting the discharged precipitate;
waste water treatment equipment includes the sedimentation tank, surface symmetry installs first extension board and the second extension board that plays supporting role under the sedimentation tank, vertical layout's first spacing groove is seted up towards the side of second extension board to first extension board, the second spacing groove with first spacing groove matched with is seted up towards the one side of first extension board to the second extension board, a plurality of is wide down narrow gathers the hopper under the sedimentation tank lower surface equidistance is installed, the bottom is the inclined plane to gathering hopper direction slope in the sedimentation tank, gather hopper lower extreme fixedly connected with butterfly valve, butterfly valve lower extreme fixedly connected with metal ripple compensator, the screw conveyer that is linked together with metal ripple compensator is connected to metal ripple compensator lower extreme, the second spacing groove is run through to the one end of screw conveyer installation motor, the screw conveyer discharge end runs through first spacing groove, second spacing groove upside is equipped with the diaphragm with second extension board fixed connection, the diaphragm upper surface of diaphragm sets up threaded hole, the screw hole internal gearing has adjusting screw, the adjusting screw lower extreme rotates and is connected with the tractive rope, the lower extreme bolt system is in the screw conveyer installs the one end of motor, the adjusting screw handle upper end is used for the adjusting screw rod to rotate the adjusting screw rod.
The outer surface of the lower end of the adjusting screw rod is sleeved with a rolling bearing, the inner ring of the rolling bearing is fixedly connected with the adjusting screw rod, a first circular ring is fixed at the upper part of the outer surface of one end of the spiral conveyer, where the motor is installed, a second circular ring is fixedly connected with the outer ring of the rolling bearing, and the traction rope is tied between the first circular ring and the second circular ring.
Specifically, one side of the lower surface of the transverse plate, which is close to the second support plate, is fixedly connected with an inclined reinforcing plate, and one end, which is far away from the transverse plate, of the reinforcing plate is fixedly connected with the second support plate.
Specifically, a plurality of pipe joints which are communicated with the barrel part of the spiral conveyor and are provided with flanges are equidistantly arranged on the barrel part of the spiral conveyor, and the flanges on the pipe joints are fixedly connected with the metal corrugated compensator through bolts.
Specifically, screw conveyer's barrel lower part position equidistance installs the internal thread circle that a plurality of and screw conveyer's barrel are linked together, be equipped with the cylinder that the lower extreme is the opening form in the internal thread circle, cylinder upper end surface processing has first external screw thread, the cylinder is through first external screw thread and internal thread circle threaded connection, a plurality of hole that leaks has evenly been seted up to the cylinder upper surface, install in the cylinder and play the sponge piece that blocks the precipitate effect, be equipped with the water catch bowl directly over the cylinder, the water catch bowl sets up between first extension board and second extension board.
Specifically, two through-holes have been seted up from top to bottom to the cylinder surface, the through-hole outside is equipped with the straight thread section of thick bamboo with cylinder fixed connection, be equipped with the inserted bar of taking the prong in the straight thread section of thick bamboo, the one end processing that the prong was kept away from to the inserted bar has the second external screw thread with straight thread section of thick bamboo matched with, the one end that the inserted bar processing had the prong is run through the through-hole and is inserted in the sponge piece.
Specifically, a connecting pipe is installed at the lower portion of one side face of the water collecting tank, one end, far away from the water collecting tank, of the connecting pipe is connected with the water inlet end of the water pump, the water outlet end of the water pump is connected with a water delivery pipe, and one end, far away from the water pump, of the water delivery pipe is installed at the upper portion of one side face of the sedimentation tank and extends into the sedimentation tank.
Specifically, the lower edge of the first support plate facing the second support plate and the lower portion of one side of the second support plate facing the first support plate are fixedly connected with connecting plates, and two foundation holes used for inserting bolts are formed in the upper surfaces of the connecting plates.
Specifically, an overflow pipe is installed at the upper part of one side surface of the sedimentation tank and is arranged in a horizontal shape.
The invention has the beneficial effects that:
1. according to the invention, the metal corrugated compensator is used for connecting the butterfly valve and the screw conveyer, two ends of the screw conveyer respectively penetrate through the first limiting groove and the second limiting groove, and then when the adjusting screw rod is rotated by the handle, the adjusting screw rod rotates in the threaded hole on the transverse plate, so that the adjusting screw rod drives one end of the screw conveyer, which is provided with the motor, to move upwards through the traction rope, at the moment, the metal corrugated compensator deforms under the condition that precipitates fall into the screw conveyer, and the positions of the screw conveyer in the first limiting groove and the second limiting groove change along with the change of the positions, so that the convenient adjustment of the inclination angle of the screw conveyer is realized, one end of the screw conveyer, which is provided with the motor, is convenient to tilt upwards, the requirement on the water resistance of one end of the screw conveyer, the production cost is favorably reduced, the replacement times of a waterproof part is reduced, and the management is convenient.
2. According to the invention, the cylinder body processed with the first external thread is screwed into the internal thread ring, so that the cylinder body and the screw conveyer can be conveniently disassembled and assembled, part of moisture in sediment entering the screw conveyer from the sedimentation tank flows into the cylinder body through the water leakage holes and flows into the water collecting tank through the cylinder body, so that part of moisture in the sediment is discharged on line and collected in a centralized manner, the recovery rate of the moisture is improved, and the sponge block is arranged in the cylinder body, so that the sediment is prevented from entering the cylinder body under the condition of not influencing the flow of the moisture.
3. According to the invention, after the sponge block is arranged in the cylinder body, one end of the insertion rod with the pointed end penetrates through the straight thread cylinder and the through hole to be inserted into the sponge block, and one end of the insertion rod for processing the second external thread is screwed into the straight thread cylinder, so that the position of the sponge block is limited by using the insertion rod, and meanwhile, the sponge block is convenient to replace in the later period.
4. After the circuit of the water pump is switched on, the water pump conveys the water in the water collecting tank into the sedimentation tank through the connecting pipe and the water conveying pipe, and the collected water is conveniently transferred.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
FIG. 1 is a flow chart of an environmentally friendly treatment method of steel plant wastewater according to the present invention;
FIG. 2 is a schematic view showing the construction of a wastewater treatment apparatus according to the present invention;
FIG. 3 is an enlarged view taken at A in FIG. 2;
FIG. 4 is a rear view of the wastewater treatment plant of the invention;
FIG. 5 is a perspective view of a horizontal plate in the wastewater treatment apparatus according to the present invention;
FIG. 6 is a schematic view showing the assembly of a polymer hopper and a sedimentation tank of the wastewater treatment apparatus of the present invention;
FIG. 7 is a schematic view showing the assembly of an insertion rod, a sponge block and a cylinder in the wastewater treatment apparatus of the present invention;
FIG. 8 is a perspective view of a cylinder in the wastewater treatment apparatus of the present invention;
FIG. 9 is a perspective view of an insert rod of the wastewater treatment apparatus according to the present invention;
in the figure: 1. the sedimentation tank, 2, first supporting plate, 3, first spacing groove, 4, screw conveyer, 5, metal ripple compensator, 6, water catch bowl, 7, even board, 8, second supporting plate, 9, second spacing groove, 10, overflow pipe, 11, internal thread circle, 12, cylinder, 13, straight thread section of thick bamboo, 14, inserted bar, 15, gather hopper, 16, coupling, 17, butterfly valve, 18, connecting pipe, 19, water pump, 20, raceway, 21, first ring, 22, tractive rope, 23, second ring, 24, antifriction bearing, 25, diaphragm, 26, adjusting screw, 27, reinforcing plate, 28, screw hole, 29, sponge piece, 30, the hole that leaks, 31, through-hole.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further explained by combining the specific embodiments.
Referring to fig. 1 to 9, the present invention provides a technical solution: an environment-friendly treatment method for wastewater of a steel plant uses a wastewater treatment device, and the environment-friendly treatment of the wastewater of the steel plant by adopting the wastewater treatment device comprises the following steps;
step one, performing precipitation treatment, namely injecting the wastewater into a precipitation tank 1 for standing, so that precipitates in the wastewater are precipitated at the bottom of the precipitation tank 1;
step two, sewage is discharged, the precipitated sewage is extracted, the precipitate is positioned at the bottom of the sedimentation tank 1, and the precipitate in the sedimentation tank 1 is kept at the bottom after the sewage is extracted;
discharging the precipitate, namely discharging the wastewater precipitate remained in the sedimentation tank from the sedimentation tank 1, and collecting the discharged precipitate;
the wastewater treatment equipment comprises a sedimentation tank 1, a first support plate 2 and a second support plate 8 which have supporting effect are symmetrically arranged on the lower surface of the sedimentation tank 1, a first limiting groove 3 which is vertically arranged is arranged on the side surface of the first support plate 2 facing the second support plate 8, a second limiting groove 9 which is matched with the first limiting groove 3 is arranged on one surface of the second support plate 8 facing the first support plate 2, a plurality of gathering hoppers 15 which are wide at the upper part and narrow at the lower part are arranged on one side of the lower surface of the sedimentation tank 1 at equal intervals, the bottom in the sedimentation tank 1 is an inclined plane which inclines towards the gathering hopper 15, the lower end of each gathering hopper 15 is fixedly connected with a butterfly valve 17, the lower end of each butterfly valve 17 is fixedly connected with a metal corrugated compensator 5, the lower end of each metal corrugated compensator 5 is connected with a screw conveyer 4 communicated with the metal corrugated compensator 5, one end of a motor arranged on each screw conveyer 4 penetrates through the second limiting groove 9, the discharge end of each screw conveyer 4 penetrates through the first limiting groove 3, a transverse plate 25 fixedly connected with the second support plate 8 is arranged on the upper side of the second limiting groove 9, a threaded hole 28 is formed in the upper surface of the transverse plate 25, an adjusting screw 26 is engaged in the threaded hole 28, the lower end of the adjusting screw 26 is rotatably connected with a traction rope 22, the lower end of the traction rope 22 is tied to one end of the screw conveyor 4 where a motor is installed, a handle for rotating the adjusting screw 26 is installed on the outer surface of the upper end of the adjusting screw 26, the metal corrugated compensator 5 is used for connecting the butterfly valve 17 with the screw conveyor 4, and two ends of the screw conveyor 4 respectively penetrate through the first limiting groove 3 and the second limiting groove 9, so that when the adjusting screw 26 is rotated by the handle, the adjusting screw 26 drives one end of the screw conveyor 4 where the motor is installed to move upwards through the traction rope 22, convenient adjustment of the inclination angle of the screw conveyor 4 is realized, and one end of the screw conveyor 4 where the motor is installed is convenient to tilt upwards, the waterproof requirement on one end of the motor installed on the screw conveyor 4 is reduced, the production cost is reduced, the replacement times of waterproof parts are reduced, and the management is facilitated.
The outer surface of the lower end of the adjusting screw 26 is sleeved with a rolling bearing 24, the inner ring of the rolling bearing 24 is fixedly connected with the adjusting screw 26, a first circular ring 21 is fixed at the upper part of the outer surface of one end of the screw conveyor 4, provided with a motor, a second circular ring 23 is fixedly connected with the outer ring of the rolling bearing 24, the traction rope 22 is tied between the first circular ring 21 and the second circular ring 23, the first circular ring 21 and the second circular ring 23 are designed to provide a carrier for the tying of the traction rope 22, the second circular ring 23 is fixed on the outer ring of the rolling bearing 24, the adjusting screw 26 is fixedly connected with the inner ring of the rolling bearing 24, the rotating connection of the adjusting screw 26 and the second circular ring 23 is realized, and when the adjusting screw 26 is screwed, the traction rope 22 does not rotate along with the rotation of the adjusting screw 26.
One side of the lower surface of the transverse plate 25, which is close to the second support plate 8, is fixedly connected with an inclined reinforcing plate 27, one end of the reinforcing plate 27, which is far away from the transverse plate 25, is fixedly connected with the second support plate 8, and the reinforcing plate 27 is additionally arranged between the transverse plate 25 and the second support plate 8, so that the connection stability of the transverse plate 25 and the second support plate 8 is improved.
The barrel part of screw conveyer 4 equidistance is installed a plurality of and is linked together and flanged coupling 16 with screw conveyer 4 barrel part, and flange on coupling 16 passes through bolt and metal corrugated compensator 5 fixed connection, utilizes flange and metal corrugated compensator 5 on the 18 joints 16 of bolt connection pipe, realizes the convenient dismouting of metal corrugated compensator 5 and screw conveyer 4.
The cylinder body part lower part position equidistance of screw conveyer 4 installs the internal thread circle 11 that a plurality of and screw conveyer 4's cylinder body part are linked together, be equipped with the cylinder 12 that the lower extreme is the opening form in the internal thread circle 11, cylinder 12 upper end surface processing has first external screw thread, cylinder 12 is through first external screw thread and internal thread circle 11 threaded connection, a plurality of hole 30 that leaks has evenly been seted up to cylinder 12 upper surface, install the sponge piece 29 that plays and block the precipitate effect in cylinder 12, be equipped with water catch bowl 6 directly over cylinder 12, water catch bowl 6 sets up between first extension board 2 and second extension board 8, screw into internal thread circle 11 with cylinder 12 that has first external screw thread to process, realize cylinder 12 and screw conveyer 4's convenient dismouting, get into in the precipitate in screw conveyer 4 from sedimentation tank 1 in partial moisture flows into cylinder 12 through hole 30, and flow into in the water catch bowl 6 through cylinder 12, realize that partial union water of online discharge precipitate concentrates and collect, improve the rate of recovery of water, install sponge piece 29 in cylinder 12, prevent that precipitate from getting into in 12 under the condition that does not influence the moisture flow.
Two through-holes 31 have been seted up under cylinder 12 surface follow, the through-hole 31 outside is equipped with a straight thread section of thick bamboo 13 with cylinder 12 fixed connection, be equipped with the inserted bar 14 of taking the prong in the straight thread section of thick bamboo 13, the one end processing that inserted bar 14 kept away from the prong has the second external screw thread with a straight thread section of thick bamboo 13 matched with, the one end that inserted bar 14 processed the prong runs through-hole 31 and assigns in sponge piece 29, place sponge piece 29 in cylinder 12 back, pass a straight thread section of thick bamboo 13 and through-hole 31 with the one end that inserted bar 14 took the prong and assign in sponge piece 29, and make the one end of inserted bar 14 processing second external screw thread twist in a straight thread section of thick bamboo 13, realize utilizing inserted bar 14 to restrict the position of sponge piece 29, be convenient for later stage change sponge piece 29 simultaneously.
Connecting pipe 18 is installed to 6 a side lower part positions of water catch bowl, the end of intaking of water pump 19 is connected to the one end that water catch bowl 6 was kept away from to connecting pipe 18, the play water end of water pump 19 is connected with raceway 20, raceway 20 is kept away from the one end of water pump 19 and is installed in 1 a side upper portion position of sedimentation tank and extend to sedimentation tank 1, behind the circuit of switch-on water pump 19, water pump 19 carries the moisture in the water catch bowl 6 to sedimentation tank 1 in through connecting pipe 18 and raceway 20, realize the moisture of convenient transfer collection.
An overflow pipe 10 is installed at the upper part of one side surface of the sedimentation tank 1, the overflow pipe 10 is arranged in a horizontal shape, and the overflow pipe 10 is installed on the sedimentation tank 1, so that the moisture on the upper side of the sedimentation tank 1 can overflow to the next wastewater treatment process.
The wastewater treatment equipment has the specific working principle that: when sediment in the sedimentation tank 1 needs to be discharged, firstly, water on the upper layer in the sedimentation tank 1 is discharged, then, a circuit of the spiral conveyor 4 is switched on, then, a butterfly valve 17 is opened, then, sediment in the sedimentation tank 1 slides to a collecting hopper 15 along the inclined bottom of the sedimentation tank 1 and enters the spiral conveyor 4 through the butterfly valve 17 and a metal corrugated compensator 5, a screw rod in the spiral conveyor 4 discharges the sediment, the sediment in the sedimentation tank 1 is conveniently cleaned, the metal corrugated compensator 5 is utilized to connect the butterfly valve 17 and the spiral conveyor 4, two ends of the spiral conveyor 4 respectively penetrate through a first limiting groove 3 and a second limiting groove 9, when a handle is utilized to rotate an adjusting screw 26, the adjusting screw 26 rotates in a threaded hole 28 on a transverse plate 25, the adjusting screw 26 drives one end of a motor installed on the spiral conveyor 4 to move upwards through a pull rope 22, at the moment, the metal corrugated compensator 5 deforms under the condition that the sediment does not fall into the spiral conveyor 4, the waterproof conveyor 4 is convenient to change the position of the screw conveyor 4, the waterproof conveyor 4 is convenient to reduce the waterproof conveyor installation cost, and the waterproof conveyor 4 installation cost is reduced, and the waterproof conveyor installation cost is convenient for the waterproof conveyor.
After placing sponge block 29 in cylinder 12, the one end of inserted bar 14 with the tip passes through straight thread section of thick bamboo 13 and through-hole 31 and inserts in sponge block 29, and make the one end of inserted bar 14 processing second external screw thread twist in straight thread section of thick bamboo 13, realize utilizing inserted bar 14 to restrict the position of sponge block 29, be convenient for later stage change sponge block 29 simultaneously, will process in the cylinder 12 that has first external screw thread twists in interior thread circle 11, realize cylinder 12 and screw conveyer 4's convenient dismouting, part moisture flows into cylinder 12 through the hole 30 that leaks in the deposit in the screw conveyer 4 from sedimentation tank 1, and flow into water catch bowl 6 through cylinder 12 in, realize that the part moisture in the online discharge deposit concentrates the cylinder, improve the rate of recovery of moisture, install sponge block 29 in 12, prevent that the deposit gets into cylinder 12 under the circumstances that does not influence the moisture flow, after putting through the circuit of water pump 19, water pump 19 carries the moisture in water catch bowl 6 to sedimentation tank 1 through connecting pipe 18 and raceway 20 conveniently, realize the moisture that the transfer was collected.
While there have been shown and described what are at present considered the fundamental principles and essential features of the invention and its advantages, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (6)
1. An environment-friendly treatment method for wastewater of a steel plant uses a wastewater treatment device, and is characterized in that: the environmental protection treatment of the wastewater of the steel plant by adopting the wastewater treatment equipment comprises the following steps;
step one, carrying out precipitation treatment, namely injecting the wastewater into a precipitation tank (1) for standing, so that precipitates in the wastewater are precipitated at the bottom of the precipitation tank (1);
step two, discharging sewage, and pumping out the precipitated sewage, wherein the precipitate is positioned at the bottom of the sedimentation tank (1), and the precipitate in the sedimentation tank (1) is retained at the bottom after the sewage is pumped out;
discharging the precipitate, namely discharging the wastewater precipitate remained in the sedimentation tank (1), and collecting the discharged precipitate;
the wastewater treatment equipment comprises a sedimentation tank (1), wherein a first supporting plate (2) and a second supporting plate (8) which have a supporting effect are symmetrically arranged on the lower surface of the sedimentation tank (1), a first limiting groove (3) which is vertically arranged is formed in the side surface of the first supporting plate (2) facing the second supporting plate (8), a second limiting groove (9) which is matched with the first limiting groove (3) is formed in the side surface of the second supporting plate (8) facing the first supporting plate (8), a plurality of upper-wide and lower-narrow material collecting hoppers (15) are arranged at the same side of the lower surface of the sedimentation tank (1) at equal intervals, the inner bottom of the sedimentation tank (1) is an inclined plane which inclines towards the direction of the material collecting hoppers (15), the lower end of the material collecting hoppers (15) is fixedly connected with a butterfly valve (17), the lower end of the butterfly valve (17) is fixedly connected with a metal corrugated compensator (5), the lower end of the metal corrugated compensator (5) is connected with a spiral conveyor (4) which is communicated with the metal corrugated compensator (5), one end of a spiral conveyor (4) mounting motor penetrates through the second limiting groove (9), and a second supporting plate (25) is arranged at the upper side of the second supporting plate (8), an adjusting screw rod (26) is meshed in the threaded hole (28), the lower end of the adjusting screw rod (26) is rotatably connected with a pulling rope (22), the lower end of the pulling rope (22) is tied to one end, provided with a motor, of the spiral conveyor (4), and a handle used for rotating the adjusting screw rod (26) is installed on the outer surface of the upper end of the adjusting screw rod (26);
the outer surface of the lower end of the adjusting screw rod (26) is sleeved with a rolling bearing (24), the inner ring of the rolling bearing (24) is fixedly connected with the adjusting screw rod (26), a first circular ring (21) is fixed at the upper part of the outer surface of one end, provided with a motor, of the spiral conveyor (4), the outer ring of the rolling bearing (24) is fixedly connected with a second circular ring (23), and the traction rope (22) is tied between the first circular ring (21) and the second circular ring (23);
a plurality of pipe joints (16) which are communicated with the cylinder body part of the screw conveyor (4) and are provided with flanges are equidistantly arranged on the cylinder body part of the screw conveyor (4), and the flanges on the pipe joints (16) are fixedly connected with the metal corrugated compensator (5) through bolts;
internal thread circle (11) that barrel portion lower part position equidistance of screw conveyer (4) was linked together of a plurality of and screw conveyer (4) is installed to barrel portion lower part position equidistance, be equipped with cylinder (12) that the lower extreme is the opening form in internal thread circle (11), cylinder (12) upper end surface processing has first external screw thread, cylinder (12) are through first external screw thread and internal thread circle (11) threaded connection, a plurality of hole (30) that leak have evenly been seted up to cylinder (12) upper surface, install sponge piece (29) that play and block precipitate effect in cylinder (12), be equipped with water catch bowl (6) directly over cylinder (12), water catch bowl (6) set up between first extension board (2) and second extension board (8).
2. The environmental-friendly treatment method for the wastewater of the steel plant according to claim 1, which is characterized in that: one side of the lower surface of the transverse plate (25) close to the second support plate (8) is fixedly connected with an inclined reinforcing plate (27), and one end, far away from the transverse plate (25), of the reinforcing plate (27) is fixedly connected with the second support plate (8).
3. The environmental-friendly treatment method for the wastewater of the steel plant according to claim 1, which is characterized in that: two through-holes (31) have been seted up from top to bottom to cylinder (12) surface, through-hole (31) outside is equipped with a straight thread section of thick bamboo (13) with cylinder (12) fixed connection, be equipped with in a straight thread section of thick bamboo (13) and take the inserted bar (14) of cusp, the one end processing that the tip was kept away from in inserted bar (14) has the second external screw thread with a straight thread section of thick bamboo (13) matched with, the one end that inserted bar (14) processing had the cusp runs through-hole (31) and assigns in sponge piece (29).
4. The environmental protection treatment method for steel mill wastewater according to claim 1, characterized in that: connecting pipe (18) are installed to a side lower part position of water catch bowl (6), the one end that water catch bowl (6) were kept away from in connecting pipe (18) is connected the end of intaking of water pump (19), the play water end of water pump (19) is connected with raceway (20), the one end that water pump (19) were kept away from in raceway (20) is installed in sedimentation tank (1) side upper portion position and is extended to sedimentation tank (1).
5. The environmental-friendly treatment method for the wastewater of the steel plant according to claim 1, which is characterized in that: the lower edge of the first supporting plate (2) facing the second supporting plate (8) and the lower position of one side of the second supporting plate (8) facing the first supporting plate (2) are fixedly connected with a connecting plate (7), and two foundation holes for inserting bolts are formed in the upper surface of the connecting plate (7).
6. The environmental-friendly treatment method for the wastewater of the steel plant according to claim 1, which is characterized in that: an overflow pipe (10) is installed at the upper part of one side surface of the sedimentation tank (1), and the overflow pipe (10) is arranged horizontally.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010792078.7A CN111892139B (en) | 2020-08-08 | 2020-08-08 | Environment-friendly treatment method for wastewater of steel plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010792078.7A CN111892139B (en) | 2020-08-08 | 2020-08-08 | Environment-friendly treatment method for wastewater of steel plant |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111892139A CN111892139A (en) | 2020-11-06 |
| CN111892139B true CN111892139B (en) | 2022-12-30 |
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Family Applications (1)
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| CN206198782U (en) * | 2016-11-28 | 2017-05-31 | 李振伟 | Settler for sewage treatment |
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| CN106144447A (en) * | 2016-06-29 | 2016-11-23 | 田阳果香园食品工业有限公司 | Conveying worm |
| CN206198782U (en) * | 2016-11-28 | 2017-05-31 | 李振伟 | Settler for sewage treatment |
| CN209612351U (en) * | 2018-11-28 | 2019-11-12 | 泗阳县庆江水产专业合作社 | A kind of aquatic products filter device with self-cleaning function |
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