Mud scraping mechanism of radial-flow-type mud scraper

Abstract

The invention relates to a mud scraping mechanism of a radial-flow-type mud scraper. The mud scraping mechanism includes a work bridge, a scraping arm, a steel wire rope and a scarping plate. Two support lugs are arranged on the lower end of the work bridge. The upper end of the steel wire rope and the upper end of the scraping arm are respectively connected to the two support lugs on the lower end of the work bridge by means of pin shafts. The lower end of the steel wire rope is connected to the scraping arm. The scarping plate is fixedly connected to the lower end of the scraping arm through a fastener. The mud scraping mechanism has simple structure, low production cost and maintenance cost, can prolong the service life of the scarping plate and works stably. The scarping plate is totally lift up from the bottom of a tank, wherein a rubber board on the bottom of the scarping plate is not contacted with the cement bottom of the tank anymore and friction surface does not exist, so that the scarping plate is prolonged in service life and the maintenance cost is reduced. A roller pair of the scarping plate is avoided, so that production cost and difficulty are reduced at certain degree, and a problem or shutdown of the whole primary settlement tank or secondary settlement tank due to the problem of the roller pair is solved. The scraping arm is hoisted by the steel wire rope, so that the scarping plate can vertically stand on the bottom of the tank, and the distance between the scarping plate and the bottom of the tank can be adjusted at certain degree.

Description

technical field [0001] The invention relates to a mud scraping mechanism of a radial flow mud scraper. Background technique [0002] Peripheral transmission sludge scraper is suitable for radial flow primary or secondary sedimentation tanks in sewage treatment plants. Its main function is to scrape the sludge settled at the bottom of the tank to the central sludge pit, and then discharge it through the sludge discharge pipe so that the sludge can return or Concentration and dehydration, the mud scraper installed under the working bridge is driven by the drive mechanism installed on the periphery, and rotates around the center support installed on the central pier of the pool. The sludge settled at the bottom of the pool is collected by the mud scraper to the central mud pit. Then it is discharged out of the pool by the mud discharge pipe. In the prior art, each scraper is equipped with 2-4 pairs of rollers, and is supported by the pair of rollers. In an ideal state, the rol...

AI Technical Summary

Problems solved by technology

The reality is that many roller pairs do not work, and the scraper is directly dragged forward by the scraper arm. Due to being underwater and in disrepair for a long time, many scrapers have been deformed and cannot work normally, resulting in poor mud discharge from the primary or secondary settling tank. Stable, causing problems in the sewage treatment process

If you want to rectify, you have to empty the primary or secondary sedimentation tank, which will have a great negative impact on the sewage treatment plant.

Images