详情描述


Our company is a manufacturer specializing in air cannons, loosening machines, air hammers, rotating coal bins, gas storage tanks, low-temperature storage tanks, and gasification skids, with over 20 years of production history. We have accumulated rich experience in both product production and usage, offering a one-stop service to help customers from selection to generating benefits.


I. Product Overview


The Loosening Machine is designed to address the issue of coal storage blockages in thermal power plants. The equipment automatically monitors the coal feeding status in the raw coal storage, initiates itself upon coal cutoff, and promptly clears the blockage. Afterward, it automatically shuts down, ensuring a continuous supply of coal to the storage and uninterrupted production of the unit, thereby significantly enhancing the economic benefits of the enterprise.


Section II: Application Scope The Loose Machine is widely used to address the blockage issues in coal storage bunkers, material storage bunkers, etc., of different structures and materials such as hyperbolic, conical, and square-conical shapes in industries such as thermal power plants, steel mills, coking plants, and metallurgy.


Section 3: Principle of Operation of the Loosening Machine


The loosener receives a start signal and the electrical control system activates the hydraulic power system, which drives the cylinder to move the loosener back and forth along the inner wall of the coal bin, breaking the adhesion between the coal and the bin, destroying the support points of the roof coal, and automatically stops when the coal flow is smooth.


1. The thickness of coal layer on each conveyor belt serves as the signal basis for detecting coal flow. When there's no coal or the coal layer is less than one-third of the normal thickness, the signal device automatically activates and sends an electrical command.


2. Power-on instruction causes the motor contactor to engage, and the motor rotates clockwise.


3. The motor drives the high-pressure pump to pressurize oil, which then passes through an electromagnetic valve to power the cylinder, moving the loose scraper up and down to achieve the conveying purpose.


4. After loosening, the coal falls onto the belt or scraper, interrupting the automatic coal-blockage signal, and the loosening process is then complete.


IV. Technical Specifications


Loose Height: ≥1.5m Loose Area: ≥2㎡


Output Force: ≥39,000N Operating Stroke: 150mm, 200mm


Power Source: AC380V (3-phase 4-wire) Operating Pressure: ≥5.0 MPa


Motor Power: 2.2KW, 4KW; Rated Pressure: 10.0MPa


Section 5: Structural Features


1. The design incorporates a fully enclosed structure with a combination of hydraulic drive and electrical control.


2. The loosener is made of low-alloy high-strength steel and corrosion-resistant stainless steel, ensuring structural strength and longevity.


3. In design, reasonable plans are formulated based on the varying structural forms, coal quality, moisture content, particle size, and operational modes of coal storage facilities.


4. The loosening machine is powered by hydraulic transmission, operates smoothly, and is easy to maintain.


VI. Control Methods


1. Manual: Allows on-site manual operation, suitable for daily patrol and on-site control, as well as control room manual operation.


2. Timing: The loosener starts at intervals as set by the timer, automatically stops after completing a cycle.


3. Automatic: When the coal supply is significantly reduced or interrupted, the signal device installed with the loosening machine automatically outputs a start signal, causing the loosening machine to immediately activate, clearing the blockage, and restoring the flow of raw coal.