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CN-121971912-A - Multistage wastewater treatment device for wood production

CN121971912ACN 121971912 ACN121971912 ACN 121971912ACN-121971912-A

Abstract

The invention relates to the technical field of wastewater treatment, and discloses a multistage wastewater treatment device for wood production, which comprises a treatment tank, a first filter cylinder and a second filter cylinder which are arranged in the treatment tank in a column shape, wherein the first filter cylinder and the second filter cylinder are positioned in the first filter cylinder and are used for sequentially separating impurities in wastewater, a water outlet pipe is arranged at the bottom of the second filter cylinder and is used for outwards guiding the treated wastewater, and a water inlet pipe is arranged at the bottom of the treatment tank. According to the invention, continuous multistage filtration from coarse filtration to fine filtration is realized by adopting the first filter cartridge and the second filter cartridge, the impurities such as wood dust, fibers and the like with different particle diameters are removed at one time, and synchronous online self-cleaning is realized, and the rotary filtration and the filter screen cleaning are synchronously carried out by driving a motor, so that the problems that the traditional filter equipment is required to be frequently stopped and manually cleaned due to rapid blockage of the filter screen are solved, the continuous and uninterrupted efficient operation of the wastewater treatment process is ensured, and the overall treatment efficiency and the production continuity are greatly improved.

Inventors

  • He Cuihe

Assignees

  • 鹤峰鸿泽木业有限公司

Dates

Publication Date
20260505
Application Date
20260309

Claims (8)

  1. 1. Multistage effluent treatment plant is used in timber production, including treatment tank (1), its characterized in that still includes: The filter cartridge I (2) and the filter cartridge II (3) are arranged in the treatment tank (1) in a column shape, and the filter cartridge II (3) is positioned in the filter cartridge I (2) and is used for sequentially separating impurities in wastewater; The water outlet pipe (4) is arranged at the bottom of the filter cylinder II (3) and is used for guiding out the treated wastewater outwards; The water inlet pipe is arranged at the bottom of the treatment tank (1) and connected to the bottom of the water outlet pipe (4) and used for supporting the filter cartridge II (3), and a plurality of water outlet holes are formed in the outer wall of the water inlet pipe and used for leading in wastewater to enter the treatment tank (1); The rotating mechanism (6) is arranged on the first filter cartridge (2) and is used for rotating the first filter cartridge (2); the dredging mechanism (7) is arranged on the first filter cylinder (2) and is used for dredging the first filter cylinder (2) and the second filter cylinder (3); Wherein the rotation mechanism (6) comprises: A plurality of tooth blocks (61) which are equidistantly and fixedly connected to the outer wall of the first filter cartridge (2) and used for driving the first filter cartridge (2) to rotate; the dredging mechanism (7) comprises: The arc-shaped connecting rods (71) are equally arranged on the outer wall of the second filter cylinder (3), one end of each arc-shaped connecting rod is fixedly connected with a rotary sleeve (72) and is rotationally connected with the outer wall of the second filter cylinder (3); The number of the plurality of sliding blocks (73) is twice that of the arc-shaped connecting rods (71), the arc-shaped connecting rods are slidably connected in grooves formed in the inner wall of the filter cylinder I (2), and the other ends of the arc-shaped connecting rods (71) are connected to the sliding blocks (73) arranged at intervals.
  2. 2. The multistage wastewater treatment device for wood production according to claim 1, wherein the rotating mechanism (6) further comprises: A gear (62) which is arranged on the inner wall of the treatment tank (1) through a mounting frame and is meshed with the tooth block (61) for driving the first filter cartridge (2) to rotate; the transmission box (63) is arranged at an opening at one side of the treatment tank (1), and one side of the transmission box (63) is connected with the axle center of the gear (62) through a transmission rod and is used for driving the gear (62) to rotate; and the motor (64) is arranged on the outer wall of the treatment tank (1), and the output end of the motor is connected with the transmission box (63) and is used for driving the transmission box (63) to transmit.
  3. 3. The multistage wastewater treatment device for wood production according to claim 2, wherein the dredging mechanism (7) further comprises: the guide rod (74) is arranged in the groove of the filter cartridge I (2), and the sliding block (73) is positioned on the outer wall of the guide rod (74) to slide; a plurality of movable blocks (75) fixedly connected to the outer wall of the rotary sleeve (72) and connected with the sliding blocks (73); The outer wall of the guide rod (74) is sleeved with a plurality of return springs, and the return springs are positioned on the sliding block (73) between the adjacent movable block (75) and the arc-shaped connecting rod (71) and used for resetting the movable block (75).
  4. 4. The multistage wastewater treatment device for wood production according to claim 3, wherein the movable block (75) is provided with a sliding hole (712), and a fixed rod (711) is connected in a sliding manner in the sliding hole (712); the outer wall of the fixing rod (711) is fixedly sleeved with a double-sided brush (76) for cleaning the inner wall of the first filter cylinder (2) and the outer wall of the second filter cylinder (3); the two connecting rods (77) are fixedly connected to the two ends of the fixing rod (711), and one side of each connecting rod (77) is connected with a single-sided brush (79) for cleaning the outer wall of the filter cartridge I (2).
  5. 5. The multistage wastewater treatment device for wood production of claim 4, wherein a plurality of shift levers (710) which are equidistantly arranged are fixedly connected to the outer wall of the first filter cylinder (2) and are used for shifting the single-sided brush (79) to rotate; The top and the bottom of the second filter cylinder (3) are arranged in a closed mode, and plum blossom grooves (78) are respectively formed in the top and the bottom of the second filter cylinder (3); The guide post (713) is fixedly connected to the lower portion of the other end of the connecting rod (77), the guide post (713) is located on the inner wall of the plum blossom groove (78) and slides, and the guide post is used for pushing the connecting rod (77) to drive the fixing rod (711) to move in the sliding hole (712).
  6. 6. The multistage wastewater treatment device for wood production according to claim 5, wherein the outer wall of the treatment tank (1) is fixedly connected with a separation tank (5) for collecting waste; The height of the separation groove (5) is lower than that of the first filter cartridge (2), and the height of the first filter cartridge (2) is lower than that of the second filter cartridge (3); The bottom of the separation tank (5) is provided with a collection tank (9) for collecting wastewater separated by the separation tank (5); the waste discharge pipe (10) is fixedly connected to the bottom of the separation tank (5) and is used for discharging separated waste; and the water guide pipe (11) is fixedly connected below the collecting tank (9) and is used for guiding out separated wastewater.
  7. 7. The multistage wastewater treatment device for wood production according to claim 6, wherein a collection mechanism (8) is arranged inside the separation tank (5) and is used for pushing waste materials to move along the inside of the separation tank (5), and the collection mechanism (8) comprises: A plurality of annular grooves (81) which are formed on the inner wall of the treatment tank (1); a drive rod (82) which is moved on the inner wall of the annular groove (81) by a moving block; the pushing plate (83) is arranged on the inner wall of the separation groove (5) and connected with the driving rod (82) and is used for stirring waste materials in the separation groove (5).
  8. 8. The multistage wastewater treatment device for wood production of claim 7, wherein a plurality of contact supporting rods are fixedly connected to the inner wall of the driving rod (82), and the driving rod (82) is pushed to rotate when the contact supporting rods are contacted with the single-sided brush (79).

Description

Multistage wastewater treatment device for wood production Technical Field The invention relates to the technical field of wastewater treatment, in particular to a multistage wastewater treatment device for wood production. Background Wood processing, such as sawing, planing, sanding, gluing and the like, generates a large amount of industrial wastewater, and the wastewater contains high-concentration suspended matters, mainly comprises wood chips, wood fibers, dust, possibly contained chemical substances such as adhesives, preservatives and the like, and can cause water pollution, pipeline blockage and seriously affect ecological environment if being directly discharged without treatment. At present, a physical filtration or precipitation method is generally adopted for primary treatment of the wastewater, a fixed filter screen or a screen basket is mostly used for interception in the traditional method, or a large sedimentation tank is relied on for natural sedimentation, and the methods have obvious defects that a fixed filter device is extremely easy to be blocked by fibrous wood chips, frequent shutdown is needed for manual cleaning, the treatment process is discontinuous, the efficiency is low, the maintenance labor intensity is high, the sedimentation tank occupies a large area, the treatment period is long, the settled sludge is difficult to clean, fine suspended fibers are difficult to remove, and the effluent quality is difficult to reach the standard stably. In order to improve the problems, mechanical filtering devices such as rotary filter screens or vibrating screens appear on the market, however, the devices still have the technical bottlenecks in actual operation that 1. The self-cleaning capability is insufficient, the simple back flushing or scraper design has limited cleaning effect on wood fibers which are strong in adhesiveness and easy to wind, the filter screen is easy to generate a phenomenon of 'pasting net', so that the filtering efficiency is continuously reduced, 2. The single filtering precision is limited, single-stage filtering is difficult to simultaneously and efficiently remove impurities with large particle size difference, and if multi-stage filtering is realized, a plurality of devices are often required to be connected in series, and the system is complex and takes up a large space, so a multi-stage waste water treatment device for wood production is provided to solve the problems. Disclosure of Invention The technical problem to be solved by the invention is to provide a multistage wastewater treatment device for wood production aiming at the defects in the prior art. In order to solve the technical problems, the invention adopts the technical scheme that the multistage wastewater treatment device for wood production comprises a treatment tank and further comprises: the filter cartridge I and the filter cartridge II are arranged in the treatment tank in a column shape, and the filter cartridge II is positioned in the filter cartridge I and used for sequentially separating impurities in the wastewater; the water outlet pipe is arranged at the bottom of the filter cylinder II and is used for guiding out the treated wastewater outwards; The water inlet pipe is arranged at the bottom of the treatment tank and connected to the bottom of the water outlet pipe and used for supporting the filter cartridge II, and a plurality of water outlet holes are formed in the outer wall of the water inlet pipe and used for leading in wastewater into the treatment tank; the rotating mechanism is arranged on the first filter cartridge and used for rotating the first filter cartridge; The dredging mechanism is arranged on the first filter cylinder and is used for dredging the first filter cylinder and the second filter cylinder; wherein, rotary mechanism includes: the tooth blocks are equidistant and fixedly connected to the outer wall of the first filter cartridge and used for driving the first filter cartridge to rotate; The dredging mechanism comprises: The arc-shaped connecting rods are equally arranged on the outer wall of the second filter cylinder, one end of each arc-shaped connecting rod is fixedly connected with a rotary sleeve, and the arc-shaped connecting rods are rotatably connected to the outer wall of the second filter cylinder; The number of the plurality of sliding blocks is twice that of the arc-shaped connecting rods, the sliding connection is arranged in the groove formed in the inner wall of the filter cylinder I, and the other ends of the arc-shaped connecting rods are connected to the sliding blocks arranged at intervals. Preferably, the rotation mechanism further includes: The gear is arranged on the inner wall of the treatment tank through the mounting frame, meshed with the tooth block and used for driving the filter cartridge I to rotate; The transmission box is arranged at the opening position at one side of the treatment tank, and one side of the transmission bo