Centralized Control Water-Spraying Belt Cleaning Box consists of the cleaning box body (made of stainless steel with a thickness not less than 2mm), material recovery bin (similar in structure to a small cart with wheels and braking device), pressure roller (manually adjustable for lifting), inspection door, and cleaning devices. The contact area between the cleaning box body and the belt is sealed with anti-spillage apron plates to prevent coal dust and spray dust suppression from leaking.

  The return belt surface cleaner is installed under the return belt of the conveyor and uses a three-stage cleaner to thoroughly scrape adhered materials from the belt. The first stage is a rigid polyurethane cleaner, the second stage is a polyurethane cleaner, and the third stage is a water-removing scraper. One of the three stages requires a carbide cleaner, which includes a sensing device, scraper, scraper height fine-tuning unit, scraper frame, and locking nut. The scraper is connected to the height fine-tuning unit via keyway anti-rotation and bolt fastening. The height fine-tuning unit engages with the scraper frame in an anti-rotation manner, allowing independent adjustment of each scraper's height. Each scraper maintains a certain and independent contact pressure with the belt, preventing the entire row of scrapers from being pushed away due to local protrusions or excessive pressure on a single scraper, which could result in incomplete cleaning and belt damage. The scrapers are arranged in a staggered pattern without interference. A single scraper is designed to be 120mm wide, with the blade head made of tungsten carbide material, ensuring excellent cleaning efficiency and wear resistance. The scrapers are arranged in a staggered pattern front and back, and each scraper is equipped with an independent rubber torsion spring with high-speed dynamic buffering performance. Based on the function of different belt cleaners, the positions of the cleaners are reasonably arranged to quickly remove adhered materials from the belt, improve the belt's cleaning effect, and significantly extend the belt's service life.

Below the belt cleaning box, a movable material recovery bin (made of stainless steel) is installed to collect the scraped materials from the belt, allowing the materials to be reused on the belt. The movement direction of the recovery bin is perpendicular to the operation direction of the belt conveyor. To ensure the recovery bin can be fully pulled out for coal unloading, one set of return belt surface cleaners is equipped with two recovery bins arranged perpendicular to the belt's operation direction. A分流角鋼 (diverting angle steel) is installed above the junction of the two recovery bins to prevent coal dust from falling into the gap between them.

At the rear end of the conveyor belt cleaning box, a manually adjustable pressure roller (controlled by a hand-cranked screw mechanism, with handles on both sides) is installed to adjust the contact between the belt and the scraper blades, ensuring effective cleaning. It also facilitates on-site operation; when the cleaner is not needed, the pressure roller can be lifted to separate the belt from the scraper blades, avoiding damage to both the belt and the scrapers.