2 tons of biomass boiler price, biomass boiler Zhongjie equipment manufacturing

Description :

　　Characteristics of Dust Removal System Setting for Biomass Boiler Bag Dust Collector

　　(1) The heat resistance issue of filter materials

　　Due to the use of bag filters, the boiler exhaust temperature becomes an important consideration factor due to the heat resistance of the filter material. Under the condition that the system adopts an automatic smoke exhaust temperature control system and a field air valve to supplement cold air to control the temperature of the flue gas entering the dust collector, we adopt a temperature resistant 180 ° C with waterproof and oil repellent functions. The filter material of C has an instantaneous temperature resistance of up to 210. C's high-quality filter bag ensures its filtering effect.

　　(2) Bag cage

　　To prevent corrosion of the bag cage and affect the service life of the filter bag, eight cold drawn steel wires with galvanized outer surface are used. The manufacturing is carried out using specialized equipment for the skeleton. After the skeleton is formed, the body and welding strength are high, the verticality is good, smooth, beautiful, and durable.

　　(3) . Service life

　　Based on our company's actual experience, cloth bags are generally used for two years in continuous operation. However, the use of cyclone processors and spark arresters can eliminate the situation where hot fly ash directly enters the bag and burns it out, reducing the amount of dust entering the bag filter and helping to reduce wear and extend the service life of the bag.

　　(4) Spray system

　　① The CV/KV flow coefficient of the pulse valve we designed has increased by more than 30% compared to other products of the same specifications in China. The selected pulse valve can provide a service life guarantee of more than 3 years. Electromagnetic pilot valve is suitable for DC24V voltage, providing simple and effective connection methods, humanized design of connection accessories and installation tools, and convenient maintenance;

　　② The unique design of the compressed air pipeline greatly reduces the actual consumption of compressed air. The equipment comes with a built-in air storage tank, which meets the intermittent need for a large amount of compressed air and reduces the average compressed air supply to a certain level, achieving the goal of energy conservation;

　　(5) Painting and insulation

　　Dust collectors for purifying biomass burning flue gas require more attention to insulation than in other situations, as the temperature of the flue gas drops significantly and there may be condensation of water vapor. The difference between the temperature inside the box and the average temperature of the flue gas should be less than 5 ℃. The welding area should be treated with anti-corrosion coating, and the shell should be laid with 50mm insulation cotton. The shell should be formed by folding 0.8mm color steel plate.

　　(6) Cleaning method

　　The dust removal system adopts pulse blowing for dust cleaning Compressed air (0.4~0.64MPa) induces the purified gas to form a pulse airflow for dust cleaning The dust cleaning control design adopts timed spraying with a spraying cycle of 760s.

　　(7) Prevent dust accumulation

　　The flowability of boiler smoke is poor, and measures to prevent ash accumulation have been taken in the box and ash hopper to reduce the accumulation and adhesion of deacidification products inside the box. The angle between the four walls of the ash hopper and the horizontal plane is 60 ℃, and the four corners are rounded to facilitate ash unloading. The ash hopper is equipped with a heating device to prevent dust adhesion caused by the four walls being too cold. During the operation of the bag filter, the ash unloading and conveying devices operate continuously, and the ash hopper should try to minimize the accumulation of dust.

　　(8) Spark removal device

　　Spark collectors are installed on the ventilation and dust removal system pipelines to prevent sparks from entering the dust collector and burning out the filter bags.

　　（9）. control system

　　The ventilation and dust removal system requires supporting fans and air compressors, and the drive requires a three-phase four wire power supply. The dust collector needs to be equipped with one pulse controller for dust cleaning. The pulse meter is installed near the dust collector. The power supply for the control cabinet (box) shall be provided by the construction party. Request to pull the cable to the main switch in the control cabinet. Please also provide a common grounding electrode for easy connection of the ground wire. The two sets of ventilation and dust removal systems in this plan require the use of existing fans as supporting fans.

　　(10) Compressed air:

　　The pulse bag filter requires one 2 cubic meter (PPCS96-5) gas storage tank and related gas distribution equipment and pipelines. One air compressor system supplies air to one set of bag filters for dust cleaning.

　　(11) Emergency measures

　　Smoke temperature control: Our company has set up a set of temperature controllers. When the boiler temperature suddenly rises and exceeds the temperature resistance of the filter bag, in order to protect the filter bag and extend its service life, a temperature measuring point is set up near the suction port and in the smoke channel before the dust collector. A field air valve is installed between the temperature measuring points, and a thermistor is used to quickly measure the smoke temperature. When the outdoor air valve is opened, cold air is mixed into the pipeline to control the temperature of the flue gas.

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