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CN-122010237-A - Printing and dyeing wastewater recycling device

CN122010237ACN 122010237 ACN122010237 ACN 122010237ACN-122010237-A

Abstract

The invention belongs to the technical field of sewage treatment, and particularly relates to a printing and dyeing wastewater recycling device, which comprises a wastewater tank body, wherein a slag scraping tank body is arranged in the wastewater tank body, the invention combines the triggering, energy storage and release linkage mechanisms of a shielding plate, a sliding plate and an arc spring rod in a swinging slag scraping assembly through the closed loop feedback control of a laser range finder and a spacing adjusting mechanism, carries out self-adaptive adjustment on the working angle and the action mode of the slag scraping plate, further realizes dual functions of horizontal pushing and shaking scraping on an operation strategy, specifically, carries out accurate and dynamic response on the thickness and viscosity of a slag layer in actual operation, breaks through the limitation of a single operation mode of a traditional fixed scraper, effectively solves the industrial problems of unclean slag scraping, thick slag blocking and overload when slag is stuck, obviously improves the stripping efficiency and the collecting integrity of scum, and can effectively crush and remove scum by utilizing the instant impact force generated by shaking scraping action of the rapid forward swing of the slag scraping plate.

Inventors

  • LOU ZHENFENG
  • ZHANG JIANMEI
  • ZHANG CHENG

Assignees

  • 金华雅帅纺织有限公司

Dates

Publication Date
20260512
Application Date
20260407

Claims (10)

  1. 1. The device for recycling the printing and dyeing wastewater comprises a wastewater tank body (1) and is characterized in that a slag scraping tank body (11) is arranged in the device; The slag scraping conveying mechanism is erected on the waste water tank (1) and comprises a driving chain (14) driven by a driving chain wheel (12) and a driven chain wheel (13), a pair of driving wheels (15) synchronously rotating with the driven chain wheel (13) and a driving chain (16) running around the driving wheels (15); The self-adaptive slag scraping mechanism comprises at least one slag scraping plate (17) arranged on the driving chain (16), and a swinging slag scraping assembly (2) connected with the slag scraping plate (17) and the driving chain (16) and used for driving the slag scraping plate (17) to reciprocate and swing; the automatic cleaning mechanism (3) is fixedly arranged on the waste water tank (1) and positioned above the slag scraping tank (11) and is used for automatically scraping residual scum attached to the surface of the slag scraping plate (17) when the slag scraping plate (17) passes along with the running of the driving chain (16); And a spacing adjusting mechanism for adjusting the integral horizontal position of the swing slag scraping assembly (2) is further arranged on one side of the front end of the waste water tank (1).
  2. 2. A printing and dyeing wastewater recycling apparatus according to claim 1, characterized in that the oscillating slag scraping assembly (2) comprises: A pair of swing arc frames (21), a semicircular arc hollow structure, a driving chain (16) and a driving mechanism, wherein the swing arc frames (21) are fixedly arranged on the driving chain, and a swing groove (210) extending along the arc outline of the swing arc frames (21) is formed at the lower part of the swing arc frames; The fixed seat (22) is fixedly arranged in the swing arc-shaped frame (21); a swinging block (23) rotatably connected to the fixed seat (22); a swinging plate (24) fixedly installed below the swinging block (23); A swinging member (25) arranged below the swinging arc-shaped frame (21), wherein a connecting block is arranged on the inner side of the swinging groove (210) of the swinging member (25), and the connecting block is arranged below the swinging plate (24); the arc spring rod (26) is of a semi-arc structure and is fixedly arranged in the swing arc frame (21), and the swing plate (24) is slidably connected in an arc slideway of the arc spring rod (26); the sliding plate (27) is arranged at one end of the fixed seat (22) far away from the swinging block (23), part of the sliding plate (27) extends out of the swinging arc-shaped frame (21), and a rotating shaft rod fixedly connected with the swinging block (23) is arranged on the sliding plate (27); a shielding plate (28) which is provided on the inner side of the wastewater tank (1) and is on the same horizontal plane as the sliding plate (27); The elastic waterproof bag (29) is fixedly arranged in the middle of the shielding plate (28), a square groove is formed in the side wall of the waste water tank body (1) relative to the position of the shielding plate (28), and the elastic waterproof bag (29) is arranged in the square groove.
  3. 3. The device for recycling printing and dyeing wastewater according to claim 2, wherein the inner side of the swinging arc frame (21) is provided with arc grooves (211) symmetrically distributed on the front side and the rear side of the swinging groove (210), and balls (212) capable of rolling in the arc grooves (211) are arranged below the swinging plate (24).
  4. 4. A printing and dyeing wastewater recycling apparatus according to claim 3 wherein the spacing adjustment mechanism comprises: a spacing frame (221) fixedly installed on the waste water tank (1); A spacing block (222) slidably mounted on the spacing frame (221) through a slide rail; a positioning block (223) fixedly mounted on the spacing block (222); A spacing plate (224) which is slidably mounted on the spacing frame (221) through a sliding rail, wherein a spacing groove for sleeving the positioning block (223) is formed in the spacing plate (224); A pair of fixing frames (225) fixedly installed on the interval frames (221); A screw (226) rotatable between the pair of holders (225); the driving block (227) is in threaded connection with the screw rod (226), and one end of the driving block (227) is fixedly connected with the spacing plate (224); And a laser range finder (2291) mounted on a side surface of the spacing frame (221) for detecting a thickness of dross on the dross plate (17).
  5. 5. The apparatus for recycling printing and dyeing wastewater according to claim 4, wherein the interval adjusting mechanism further comprises: a first reset block (228) which is slidable on the spacing block (222) through a slide rail, and the front end of the driving block (227) is connected with the first reset block (228); A return spring (229) connected between the first reset block (228) and the spacing block (222); And a second reset block (2292) with a front end mounted on the spacing plate (224) and a rear end adjacent to the rear end of the first reset block (228).
  6. 6. A printing and dyeing wastewater recycling apparatus according to claim 2, characterized in that the automatic cleaning mechanism (3) comprises: A pair of transmission shafts (30) fixedly mounted on the waste water tank (1) and positioned above the slag scraping tank (11); A cleaning chain wheel (31) which is rotatably sleeved on the transmission shaft (30) and meshed with the driving chain (14); the cleaning strip (32) is fixedly arranged in the cleaning chain wheel (31) along the radial direction, and the installation position of the cleaning chain wheel (31) corresponds to the position when the scraping plate (17) moves towards the inside of the scraping groove body (11) along with the driving chain (16).
  7. 7. A printing and dyeing wastewater recycling apparatus according to claim 6, characterized in that the arrangement position of the cleaning sprocket (31) is configured such that the cleaning bar (32) reaches and contacts the area of the end of the scraper (17) in the lowest point of its rotation track.
  8. 8. The device for recycling printing and dyeing wastewater according to claim 6, wherein the outer end part of the cleaning strip (32) far away from the axle center of the cleaning chain wheel (31) is provided with a tip structure, and the tip structure is arranged on the side wall of the scraping plate (17).
  9. 9. The printing and dyeing wastewater recycling apparatus according to claim 7, wherein the top of the swing arc frame (21) is provided with symmetrically arranged drip plates (33), and the drip plates (33) are arranged in an isosceles triangle.
  10. 10. A printing and dyeing wastewater recycling apparatus according to claim 9, characterized in that the drip plate (33) is arranged obliquely outwards on the swing arc (21).

Description

Printing and dyeing wastewater recycling device Technical Field The invention belongs to the technical field of sewage treatment, and particularly relates to a printing and dyeing wastewater recycling device. Background The device for recycling the printing and dyeing wastewater is key equipment for realizing the purification multiplexing of the printing and dyeing wastewater and reducing the environmental protection pressure and the water resource consumption, wherein the dissolved air floatation machine is one of core processing units, a slag scraping mechanism of the dissolved air floatation machine is used as an important mechanical component for air floatation treatment, the purification effect and the subsequent recycling quality of the wastewater are directly influenced, and the slag scraping mechanism of the dissolved air floatation machine is mainly divided into a chain slag scraper, a spiral slag scraper, a travelling type slag scraper and the like according to the structural form, and can be divided into a motor and a speed reducer driving type slag scraper and the like from the driving mode. The slag scraping mechanism of the dissolved air flotation machine has the working principle that micro bubbles generated by a dissolved air flotation system are attached to scum in printing and dyeing wastewater to enable the scum to float upwards to the water surface to form a scum layer, then a driving device drives slag scraping components (a slag scraping plate, a slag scraping chain and the like) to reciprocate or circularly move along the water surface to scrape the scum layer from the surface of an air flotation tank into a scum collecting tank, finally the collected scum is conveyed to a subsequent filter pressing and harmless treatment unit through a conveying machine, separation of the scum and purified water is completed, and the purified wastewater is ensured to reach a recycling standard. The whole slag scraping process needs to be matched with auxiliary mechanical components such as a liquid level control system of an air floatation tank, a transmission guide mechanism and the like to realize stable operation. In the existing printing and dyeing wastewater recycling device, the slag scraping mechanism of the dissolved air flotation machine has the following problems in the practical application process: The existing scum scraping plate is designed with a fixed angle and a fixed length, scum generated by printing and dyeing wastewater has the characteristics of uneven thickness and large viscosity fluctuation, when the scum is thicker or has higher viscosity, the scum is easy to accumulate and scrape, part of scum can flow back to a water purification area along with water flow to influence water quality, when the scum is thinner, the contact pressure between the scum scraping plate and the water surface is insufficient, the scum is difficult to effectively scrape and collect, the scum scraping efficiency is low, meanwhile, a transmission mechanism of the scum scraping part is mostly rigidly connected, in long-term scum scraping operation, if hard impurities (such as yarn caking and metal scraps) in the scum are encountered, impact load is easy to generate, mechanical faults such as scum deformation, transmission gear abrasion and the like are caused, the continuous operation of equipment is influenced, when the scum scraping plate is in upward transmission reset after finishing the scum scraping operation, part of scum adhered to flow downwards due to the action of gravity, part of scum can enter the transmission part of the transmission part along with the connection clearance of the scum scraping plate and the inside of a gap of a scraping arm, so that sewage enters the transmission part, the transmission part is further aggravated, the sewage and the blockage fault of the transmission part is shortened, the service life of the transmission part is prolonged, and the service life of the equipment is prolonged, and the maintenance cost is increased. Disclosure of Invention The invention aims to overcome the defects of the prior art and provides a device for recycling printing and dyeing wastewater. In order to achieve the above purpose, the technical scheme of the invention is realized as follows: the invention discloses a printing and dyeing wastewater recycling device, which comprises a wastewater tank body, wherein a slag scraping tank body is arranged in the wastewater tank body; the slag scraping conveying mechanism is erected on the waste water tank body and comprises a driving chain driven by a driving chain wheel and a driven chain wheel, a pair of driving wheels synchronously rotating with the driven chain wheel and a driving chain running around the driving wheels; The self-adaptive slag scraping mechanism comprises at least one slag scraping plate arranged on the driving chain and a swinging slag scraping assembly connected with the slag scraping plate and the driving chain and use