There are too many forms of steam boilers, just to mention an ordinary fast-loading 4 ton steam boiler. The water is heated into steam in the drum, and the heat is emitted from the furnace, which is the principle of the steam boiler. Said the boiler first said "pot". The boiler is a boiler-type boiler with a water-cooled crucible, and two returning pyrotechnic tubes are arranged in the left and right sections of the drum, and the front smoke box at the front of the drum is folded back. Between the drum and the lower box, there is a down pipe and a water-cooled manifold to form a frame of the combustion chamber. There is a steam separator in the upper part of the drum to reduce the water brought out by the water vapor. The heating surface of the pot is the lower part of the drum, the water-cooled manifold and the pyrotechnic tube. The lower part of the combustion chamber is where the blast enters. This type of boiler has a large resistance and requires forced air blowing. The burnt cinder is discharged through the "Eagle's Mouth" at the back of the grate and sent out of the furnace by the slag discharge machine. From the back of the boiler, the flue gas is forwarded by a return pipe of the drum, returned to the rear by the two return pipes, and then separated into the dust collector to separate the ash, and then discharged by the chimney through the induced draft fan. The induced draft fan is not only the exhaust gas but also the negative pressure operation of the boiler. The steam boiler is a pressure vessel and a safety device is necessary. Boiler necessary water level gauge, pressure gauge, safety valve, thermometer, electric water pump that can replenish water under pressure, and steam pump that can also be used when power is off. Boiler water must be softened, as well as water treatment equipment. Concerned about surprises Label: Structure and principle of steam boiler Previous: Reference method for calculating the torque of the valve Next: Standard sieve test sieve analysis sieve inspection sieve classification, screen mesh
An open-top tool bag is a type of tool bag designed with an open top for easy access to tools. Here are some features you might find in a high-quality open-top tool bag:
Rugged Construction: A good tool bag should be made from durable materials that can withstand the wear and tear of daily use. Often, these are constructed from robust, water-resistant fabric like nylon or polyester, and they might feature a hard plastic or reinforced fabric base for extra protection.
Ample Space and Pockets: Look for a tool bag with enough space to carry all the tools you need. Multiple compartments and pockets are also handy for keeping your tools organized. Some bags also have loops or hooks for hanging tools.
Easy Access: The open-top design should allow you to easily see and reach your tools. Some designs include a wire or sturdy rim that holds the bag open for convenience.
Comfortable to Carry: Many open-top tool bags come with a handle and an optional shoulder strap for easy transport. The handle and shoulder strap should be padded for comfort.
Stability: A good tool bag will stand upright when placed on a surface, allowing you easy access to your tools without having the bag fall over.
Safety Features: Some tool bags may include features like lockable zippers or compartments for sharp tools to improve safety during transport.
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When choosing an open top tool bag, it is important to consider the size and weight of your tools, as well as the overall durability and quality of the bag. Look for a model with sturdy construction, reinforced handles, and ample storage space to accommodate all your tools and accessories.
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The combustion section consists of a chain grate and a drive unit, plus a combustion chamber formed by the pot body frame on the grate frame. Four surrounding refractory materials. Coal is entered by the coal hopper, and the coal sluice plate controls the thickness of the coal seam while sealing the front air. 
