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CN-121988082-A - Sewage treatment device of integrated water cleaning closed-loop filter bag

CN121988082ACN 121988082 ACN121988082 ACN 121988082ACN-121988082-A

Abstract

The invention discloses a sewage treatment device of an integrated water cleaning closed-loop filter bag, which relates to the technical field of sewage treatment in steel fiber production and comprises a tank body, a filtering mechanism and a flushing unit, wherein the filtering mechanism and the flushing unit are arranged in the tank body, the flushing unit comprises a sandwich plate arranged in the tank body and a flushing assembly corresponding to the filtering assembly, the flushing assembly comprises two clamping jaws and a fluid channel, a main jet opening and a secondary jet opening are communicated with the fluid channel, a blocking piece is arranged at the communication position of the secondary jet opening and the fluid channel, two sides of the blocking piece are respectively connected with a balancing weight, and the blocking piece can rotate under the action of gravity of the balancing weight so as to switch different fluid channels and realize the filtration and adjustment of water flow. The invention realizes the adjustment of the water flow of the flushing head by utilizing the gravity-adjusted diversion structure so as to adapt to different bearing capacities of different heights of the surfaces of the filter bag for filtering the water washing wastewater in the steel fiber production and reduce the risk of bag breakage of the filter bag.

Inventors

  • MO JIAJIE
  • Mo Zhuoting
  • WU HAILONG
  • ZHANG DEQUAN

Assignees

  • 天津恒沣栩翔新材料有限公司

Dates

Publication Date
20260508
Application Date
20260317

Claims (10)

  1. 1. The integrated sewage treatment device with the water cleaning closed-loop filter bag is characterized by comprising a tank body (2), a filtering mechanism (3) and a flushing unit (4), wherein the filtering mechanism (3) and the flushing unit (4) are arranged in the tank body (2), the filtering mechanism (3) comprises a baffle plate (31) for dividing an inner cavity of the tank body (2) into a lower filter cavity and an upper containing cavity, and at least one group of filtering components capable of extending into the lower filter cavity are arranged on the baffle plate (31); The flushing unit (4) comprises a sandwich plate (41) arranged on the partition plate (31), at least one group of flushing components corresponding to the filtering components are arranged on the sandwich plate (41), each flushing component comprises two clamping jaws (48) and a fluid channel which can be opened or closed relatively, a main spray opening (432) and a secondary flow nozzle (433) are communicated with the fluid channel, a baffle (434) is arranged at the communication position of the secondary flow nozzle (433) and the fluid channel, two sides of the baffle (434) are respectively connected with balancing weights (435), one balancing weight (435) is positioned in the secondary flow nozzle (433), the other balancing weight (435) is positioned in the main spray opening (432), and the baffle (434) can rotate under the gravity action of the balancing weights (435) so as to switch different fluid channels; When the two clamping jaws (48) are completely closed, the flow of the main jet flow port (432) is maximum, and the auxiliary jet flow port (433) does not flow water; When the two clamping jaws (48) are fully opened, the flow rate of the main jet flow port (432) is reduced, the flow rate of the auxiliary flow nozzle (433) is increased, and water flowing out of the auxiliary flow nozzle (433) is in a water spray shape.
  2. 2. The sewage treatment device of an integrated water cleaning closed-loop filter bag according to claim 1, wherein the filter assembly comprises a filter bag (35) and a filter basket (33) which is supported and sleeved outside the filter bag (35), the outer sides of the two clamping jaws (48) are respectively provided with a flushing head (43), the flushing heads (43) are always positioned in the filter bag (35), and a fluid channel is arranged inside the flushing heads (43).
  3. 3. The sewage treatment device of the integrated water cleaning closed-loop filter bag according to claim 1, wherein a guide seat (21) is arranged at the bottom of the lower filter cavity, an input pipe (22) communicated with the lower filter cavity is arranged at the bottom of the tank body (2), the output end of the input pipe (22) penetrates through the guide seat (21) and stretches into the lower filter cavity, the input end of the input pipe (22) is communicated with a sewage system on a washing device of a steel fiber production line, an output pipe (24) is connected to the side surface of the upper container cavity of the tank body (2), the output end of the output pipe (24) is communicated with the washing device of the steel fiber production line, a first water pump (23) is arranged on the input pipe (22), and a second water pump (25) is arranged on the output pipe (24).
  4. 4. A sewage treatment device of an integrated water cleaning closed-loop filter bag according to claim 3, wherein at least one water through hole (32) is formed on the surface of the partition plate (31), the filter assembly is inserted into the water through hole (32), sewage is conveyed into the lower filter cavity through the input pipe (22), filtered by the filter assembly, flows into the upper container cavity, and is discharged through the output pipe (24).
  5. 5. The sewage treatment device of an integrated water cleaning closed-loop filter bag according to claim 4, wherein at least one connecting hole (44) coaxial with the water through hole (32) is formed in the sandwich plate (41), a shell (45) is sleeved in the connecting hole (44), a first motor (46) is mounted in the shell (45), an output shaft of the first motor (46) is fixedly connected with a worm (47) extending to the lower portion of the sandwich plate (41), two clamping jaws (48) are rotationally connected to two sides of the lower end of the shell (45) in a symmetrical structure, one ends, close to the worm (47), of the two clamping jaws (48) are fixedly connected with first gears (49), the two first gears (49) are simultaneously connected with the worm (47) in a meshed mode, through holes (481) are formed in the side walls of the two clamping jaws (48), and a pipeline of an external flushing pump penetrates through the through holes (481) to be communicated with a water inlet (431) of the flushing head (43).
  6. 6. The sewage treatment device of the integrated water cleaning closed-loop filter bag according to claim 5, further comprising at least one group of adjusting units (5) for driving the flushing assembly to rotate, wherein each adjusting unit (5) comprises a transmission gear (51), each transmission gear (51) is sleeved outside a shell (45), each transmission gear (51) is located inside a sandwich plate (41), a first transmission wheel (52) is movably connected to each sandwich plate (41), a sector gear (53) is fixedly connected to the bottom of each first transmission wheel (52), the sector gears (53) are meshed with the transmission gears (51) for transmission, first ratchets (441) are arranged on inner hole walls of the connecting holes (44), first ratchets (441) are connected with first pawls (56) in a meshed mode, the moving directions of the first pawls (56) and the first ratchets (441) are opposite to the driving directions of the transmission gears (51), the first pawls (56) are fixedly sleeved outside the shell (45), tension springs (57) are fixedly connected to the bottom of the first pawls (56) in an annular mode, and the first pawls (56) are fixedly connected with tension springs (57) in an annular array, and the first pawls (56) are fixedly connected with the shell (45).
  7. 7. The sewage treatment device of the integrated water cleaning closed-loop filter bag according to claim 2, wherein an inverted U-shaped handle (34) is fixedly arranged at the top of the filter basket (33), two clamping jaws (48) are positioned on two sides of a transverse rod of the inverted U-shaped handle (34), and when the two clamping jaws (48) are relatively closed, the transverse rod of the inverted U-shaped handle (34) is positioned in a clamping cavity of the two clamping jaws (48).
  8. 8. The sewage treatment device of the integrated water cleaning closed-loop filter bag of claim 6, wherein a plurality of sliding rails (26) are fixedly connected to the inner wall of the upper containing cavity of the tank body (2) in an annular array, a plurality of sliding grooves (42) are formed in the side surface of the sandwich plate (41) in an annular array, and the sliding grooves (42) are in sliding fit with the sliding rails (26).
  9. 9. The sewage treatment device of an integrated water cleaning closed-loop filter bag according to claim 6, further comprising a rinsing unit (6), wherein the rinsing unit (6) comprises a supporting frame (61), the supporting frame (61) is fixedly sleeved inside the tank body (2) and is located above the sandwich plate (41), at least one slot hole (62) coaxial with the connecting hole (44) is formed in the top of the supporting frame (61), a first belt pulley (63) is fixedly connected to the top of the shell (45), a cam (64) is fixedly connected to the top of the first belt pulley (63), an annular groove (65) is formed in the side surface of the cam (64), the annular groove (65) is in an annular wavy shape, two guide rods (66) are fixedly connected to the inner wall of the slot hole (62) in a symmetrical structure, the end portions of the guide rods (66) are slidably connected inside the annular groove (65), and the first belt pulley (63) is driven by the unidirectional module (7).
  10. 10. The sewage treatment device of an integrated water cleaning closed loop filter bag according to claim 9, wherein the unidirectional module (7) comprises a second motor (71), the second motor (71) is fixedly connected to the top of the sandwich plate (41), an output shaft of the second motor (71) is fixedly connected with two second ratchets (72), the two second ratchets (72) are respectively positioned in and above the sandwich plate (41), the two second ratchets (72) are symmetrically distributed, an output shaft of the second motor (71) is movably connected with two second pulleys (73), one of the second pulleys (73) is in transmission connection with the first pulley (63) through a second transmission belt (67), the other second pulley (73) is in transmission connection with the first transmission wheel (52) through the first transmission belt (54), the second pawls (74) are respectively fixedly connected in the two second pulleys (73), the second pawls (74) are meshed with the second ratchets (72), and the two second pawls (74) are symmetrically distributed.

Description

Sewage treatment device of integrated water cleaning closed-loop filter bag Technical Field The invention relates to the technical field of steel fiber production sewage treatment, in particular to a sewage treatment device of an integrated water cleaning closed-loop filter bag. Background The steel fiber is a material with special performance and application, and is prepared by a thin steel wire cutting method, cold-rolled strip steel shearing method, steel ingot milling method or molten steel rapid condensation method, has an aspect ratio (the ratio of the length of the fiber to the diameter of the fiber, and the diameter of the equivalent cross-section circular area is converted when the cross section of the fiber is non-circular), and is widely applied to the fields of building engineering, military engineering, mine engineering, refractory materials and the like. There are various processes for producing steel fibers, including a wire cutting process, a shearing process, a milling process, and a melt drawing process. Among them, the cutting wire method is most commonly used, and the main steps are preparation of raw materials, drawing, cutting, washing with water and surface treatment, wherein the washing with water is used for removing scraps generated in the cutting process and removing residual lubricant or other surface pollutants on the surface of the drawn semi-finished steel wire. However, since the wastewater mainly contains metal scraps, lubricant residues, suspended impurities and the like, if the wastewater is directly discharged, serious pollution is caused to the environment, and therefore, the wastewater needs to be effectively treated to reach the discharge standard or the recycling standard. Common sewage treatment methods include a physical treatment method, a chemical treatment method, a biological treatment method and a membrane treatment method, but are not suitable for treating water washing wastewater in steel fiber production due to high cost of the chemical treatment method, the biological treatment method and the membrane treatment method. The physical treatment method mainly comprises a precipitation method, a filtering method and a centrifugation method, but the precipitation method and the centrifugation method are not suitable for the treatment of the water washing wastewater in the steel fiber production because the water washing wastewater in the steel fiber production contains lubricant residues and the main component of the lubricant is grease. The closed-loop filter bag system is most common in the filtering method, and is often applied to the treatment of water washing wastewater in steel fiber production because of the characteristics of low operation cost, convenient operation, high filtering efficiency, energy conservation and environmental protection. The filter bag in the closed-loop filter bag system is a core component of the system, the inside or the outside of the filter bag is supported by a metal basket, fluid permeates from the outside to the inside of the filter bag under the action of pressure difference, metal scraps, lubricant residues and suspended impurities in sewage are trapped on the outside, and the filtered fluid enters the inside of the filter bag through the pores of the filter bag and is discharged. Therefore, in the actual operation process, along with the progress of filtration, the impurity trapped on the filter bag increases gradually, when reaching certain degree, can lead to the pressure difference increase of filter bag both sides, and filtration efficiency descends, consequently need wash or change filter bag and metal basket to guarantee the normal operating of system. However, frequent replacement of the filter bag and the metal basket not only increases the cost, but also affects the continuity of production. The disassembly and cleaning increase the labor cost and the time cost, and the production efficiency can be influenced. Based on the above, the prior art often adopts a back flushing structure additionally arranged in the sewage treatment device, and the water flow direction of the back flushing structure is opposite to the water flow direction during filtering, so as to achieve the effect of removing impurities on the surfaces of the filter bag and the metal basket. The patent with publication number CN220047246U discloses a bag type back flushing filter, through setting up water pipe and high pressure nozzle, when a large amount of impurity is attached to the filter bag inner wall, the water flow in the water pipe is gone into in the high pressure nozzle, and high pressure nozzle goes out water and washes the filter bag inner wall high pressure, uses the impact force of high pressure water to wash the impurity of filter bag inner wall to rotate in the filter bag through driving the water pipe, realize carrying out comprehensive washing to the filter bag inner wall. However, the technology has the following defects that the