Search

CN-122010290-A - Water treatment aerobic process and water treatment equipment based on suspension fluidized bed

CN122010290ACN 122010290 ACN122010290 ACN 122010290ACN-122010290-A

Abstract

The invention discloses a water treatment aerobic process and water treatment equipment based on a suspension fluidized bed, and relates to the technical field of water treatment. The water treatment equipment based on the suspended fluidized bed comprises a base, wherein a treatment box is fixedly arranged on the base, and a filler is arranged in the treatment box, and the water treatment equipment is characterized by further comprising a plurality of strip-shaped pipes distributed circumferentially and arranged at the inner bottom of the treatment box, wherein a spray head is arranged at the top of each strip-shaped pipe, and a driving part for driving the plurality of strip-shaped pipes to revolve around the axis of the treatment box is arranged at the bottom of the treatment box; the invention breaks the dead angle limit caused by the traditional fixed aerator, so that bubbles can cover corners and structurally weak areas of the reactor, greatly improves aeration area and uniformity, and ensures that the concentration of dissolved oxygen in the whole reaction area tends to be consistent.

Inventors

  • LI ZHI
  • LIU WENTAO
  • MA HAIYAN
  • Hua Minliang
  • TIAN JIANJUN
  • YU HAONAN

Assignees

  • 国能大武口热电有限公司

Dates

Publication Date
20260512
Application Date
20260414

Claims (7)

  1. 1. The water treatment aerobic process based on the suspended fluidized bed is characterized by comprising the following steps of: S1, continuously injecting pretreated sewage into water treatment equipment to stabilize the liquid level at a set height; s2, blowing compressed air into the reaction zone to form tiny bubbles, so that the concentration of dissolved oxygen in the reaction zone is maintained at 2mg-4mg/L; S3, enabling the air blowing device of the reaction zone to revolve around the axis of the water treatment equipment; S4, discharging bubbles into the water treatment equipment in a wavy line path; S5, utilizing the kinetic energy of rising bubbles to push suspended materials to roll in a flowing state in a reaction zone, so that the biomembrane on the surface of the filler (32) is fully contacted with sewage; The water treatment equipment comprises a base (1), a treatment box (2) is fixedly installed on the base (1), a filler (32) is arranged in the treatment box (2), and the water treatment equipment further comprises: A plurality of strip-shaped pipes (5) distributed circumferentially and arranged at the inner bottom of the processing box (2), The top of each strip-shaped pipe (5) is provided with a spray head (3), and the bottom of the treatment box (2) is provided with a driving part for driving the plurality of strip-shaped pipes (5) to revolve around the axis of the treatment box (2); the water inlet pipe (8) and the water outlet pipe (9) are arranged on the side wall of the treatment box (2), and the output end of the water inlet pipe (8) and the input end of the water outlet pipe (9) are communicated with the treatment box (2); A sliding rail (12) is fixedly arranged on the strip-shaped pipe (5), a sliding plate (10) is slidably arranged on the sliding rail (12), the spray head (3) is arranged on the sliding plate (10), and when the strip-shaped pipe (5) continuously revolves around the treatment box (2), the spray head (3) slides back and forth on the sliding rail (12) along with the sliding plate (10); One end fixedly connected with mounting panel (13) of keeping away from intake pipe (4) on slide (10), install spring (14) between the tip of mounting panel (13) and bar pipe (5), install gyro wheel (15) on the outer wall of mounting panel (13), the inner wall fixed mounting of processing case (2) has lug (16) of a plurality of circumference distributions, works as gyro wheel (15) follow bar pipe (5) and revolve around processing case (2) continuously, gyro wheel (15) can roll along the inner wall of processing case (2) to press a plurality of lugs (16) in proper order.
  2. 2. The aerobic process for water treatment based on a floating fluid bed according to claim 1, characterized in that in step S2 the diameter of the bubbles is 0.2mm-3mm.
  3. 3. The water treatment aerobic process based on the suspended fluidized bed according to claim 1, wherein the driving part comprises an air inlet pipe (4) rotatably installed at the bottom of the treatment box (2), the strip-shaped pipe (5) is fixedly installed on the outer wall of the air inlet pipe (4), a driving motor (6) is fixedly installed at the bottom of the treatment box (2), a transmission gear (7) is fixedly installed on an output shaft of the driving motor (6) and the air inlet pipe (4), and the two transmission gears (7) are in meshed connection with each other.
  4. 4. The water treatment aerobic process based on the suspended fluidized bed according to claim 1, wherein a slot (17) is formed in the upper end of the sliding plate (10), the spray head (3) is rotatably installed in the slot (17) through a rotating rod (18), and the input end of the spray head (3) is communicated with the strip-shaped pipe (5) through a hose (11).
  5. 5. The aerobic process for water treatment based on the suspended fluidized bed according to claim 1, wherein a scraper (19) attached to the inner wall of the treatment tank (2) is arranged in the treatment tank, a guiding inclined plane (20) inclined to the moving direction of the scraper (19) is arranged on the scraper (19), and the scraper (19) is fixedly connected with the strip-shaped pipe (5) through a connecting frame (21).
  6. 6. The water treatment aerobic process based on the suspended fluidized bed according to claim 5, wherein a plurality of vertical holes (24) close to the guiding inclined plane (20) are formed in the scraping plate (19), exhaust holes (25) extending to the surface of the guiding inclined plane (20) are formed in the vertical holes (24), an air inlet cover (23) communicated with the vertical holes (24) is fixedly connected to the bottom of the scraping plate (19), and the air inlet cover (23) is communicated with the strip-shaped pipe (5) through branch pipes (22).
  7. 7. The aerobic process for water treatment based on a suspended fluidized bed according to claim 6, characterized in that an inner cavity (28) is arranged in the scraping plate (19), a liquid discharge hole (29) penetrating to the surface of the guiding inclined plane (20) is arranged in the inner cavity (28), and the water inlet pipe (8) is communicated with the inner cavity (28) through a connecting part; the connecting part comprises an end cover (26) rotatably connected to the output end of the water inlet pipe (8), a transverse pipe (27) is fixedly connected to the outer wall of the end cover (26), and the tail end of the transverse pipe (27) extends into the inner cavity (28).

Description

Water treatment aerobic process and water treatment equipment based on suspension fluidized bed Technical Field The invention belongs to the technical field of water treatment, and particularly relates to water treatment equipment based on a suspended fluidized bed. Background The water treatment equipment of the suspended fluidized bed is characterized in that the core is a reaction container filled with sewage and suspended filler, an aeration device is arranged at the bottom of the reaction container, a fan is externally connected, a large amount of plastic biological filler with small particle size and specific gravity close to water is filled in the equipment, a carrier for adhesion growth is provided for microorganisms, the filler continuously turns under the action of the aeration device, and the microorganisms on the filler finish the purification of sewage in the turning process. In actual operation, since the aeration device at the bottom is usually fixedly arranged, the generated air flow is difficult to be absolutely uniform in the reactor, which can lead to weak areas where the corners of the reactor and two air flows meet and the back surface of structural parts in the equipment, forming aeration dead angles or areas with insufficient water flow power, in which not only the air-water mixing effect is poor and the dissolved oxygen concentration is low, but also suspended fillers which lose power are gradually stagnated and accumulated, a large amount of fillers are accumulated in the dead angles, so that the activity of microorganisms on the fillers is reduced due to oxygen deficiency, the total amount of fillers participating in effective circulation is reduced, the contact opportunity of biological membranes and pollutants is reduced, and the effective volume utilization rate and the sewage treatment efficiency of the equipment are finally reduced as a whole. Disclosure of Invention The technical problem underlying the present invention is to overcome the drawbacks of the prior art by providing a water treatment plant based on a suspended fluid bed which overcomes or at least partially solves the above-mentioned problems. In order to solve the technical problems, the invention adopts the basic conception of the technical scheme that: An aerobic water treatment process based on a suspended fluidized bed comprises the following steps: S1, continuously injecting pretreated sewage into water treatment equipment to stabilize the liquid level at a set height; s2, blowing compressed air into the reaction zone to form tiny bubbles, so that the concentration of dissolved oxygen in the reaction zone is maintained at 2mg-4mg/L; S3, enabling the air blowing device of the reaction zone to revolve around the axis of the water treatment equipment; S4, discharging bubbles into the water treatment equipment in a wavy line path; S5, the kinetic energy of rising bubbles is utilized to push suspended materials to roll in a flowing state in the reaction zone, so that the biomembrane on the surface of the filler is fully contacted with sewage. In order to secure the aeration effect, it is preferable that the diameter of the bubbles is 0.2mm to 3mm in step S2. A water treatment device based on a suspension fluidized bed comprises a base, wherein a treatment box is fixedly arranged on the base, a filler is arranged in the treatment box, a plurality of strip-shaped pipes distributed circumferentially are arranged at the inner bottom of the treatment box, a spray head is arranged at the top of each strip-shaped pipe, a driving part for driving the plurality of strip-shaped pipes to revolve around the axis of the treatment box is arranged at the bottom of the treatment box, a water inlet pipe and a water outlet pipe are arranged on the side wall of the treatment box, and the output end of the water inlet pipe and the input end of the water outlet pipe are communicated with the treatment box. In order to promote the aeration scope of shower nozzle, preferably, the drive part is including rotating the intake pipe of installing in the processing case bottom, bar pipe fixed mounting is on the outer wall of intake pipe, the bottom fixed mounting of processing case has driving motor, all fixed mounting has drive gear in driving motor's the output shaft and the intake pipe, two drive gear intermeshing connects. In order to enable the spray head to reciprocate, further, a sliding rail is fixedly arranged on the strip-shaped pipe, a sliding plate is slidably arranged on the sliding rail, the spray head is arranged on the sliding plate, and when the strip-shaped pipe continuously revolves around the treatment box, the spray head slides back and forth on the sliding rail along with the sliding plate. In order to automatically realize the reciprocating movement of the spray head, further, one end, far away from the air inlet pipe, of the slide plate is fixedly connected with a mounting plate, a spring is arranged between the mount