The desulfurization tower rotary ball dust removal device mainly consists of a rotary ball device body, a first stage rotary ball area, a second stage rotary ball area, a third stage rotary ball area, rotary balls, and stainless steel isolation plates. 1. Rotating ball device body: The top and bottom covers are welded with 8mm 316L stainless steel reinforcement, measuring 4cm x 15cm to 4cm x 25cm. The top cover is a movable door fixed with a locking device, and the outer stainless steel plate is welded. The upper part is equipped with a 52cm stainless steel isolation plate, and the outer protective plate is 40cm high and 3mm thick. It is welded with 316L stainless steel plate. 2. Level 1 spinning ball area: 8cm 316L stainless steel reinforcement is used according to the diameter inside the tower, which is divided into three parts. The part close to the inner circle is the Level 1 spinning ball area. 3. Level 2 spinning ball area: 8cm 316L stainless steel reinforcement is used according to the diameter inside the tower, which is divided into three parts. The second part close to the inner circle is the Level 2 spinning ball area. 4. Level 3 spinning ball area: 8cm 316L stainless steel reinforcement is used according to the diameter inside the tower, which is divided into three parts. The third part close to the inner circle is the Level 3 spinning ball area
A urea denitrification spray gun is independently produced for use in the field of SCR denitrification equipment technology, specifically involving an SCR denitrification spray gun The invention relates to the technical field of SNCR denitration equipment, in particular to a SCR denitration spray gun, which includes a urea spray gun pipe and an air pipe outside the urea pipe. The front end of the urea solution spray pipe is equipped with a nozzle, and the front end of the air pipe is connected by an air nozzle thread with a silicon nitride cover outside the ammonia spray nozzle. The gap between the ammonia spray pipe body, the air spray pipe body and the ammonia spray pipe forms a power assisted spray air duct, which helps the ammonia spray out of the nozzle into fog. The ammonia spray nozzle, air spray nozzle, and nozzle can be cooled in a timely manner. The temperature inside the boiler is high, and the interior is filled with dust particles, all of which are flowing at high speed. At high temperatures, coupled with the wear of dust particles on the nozzle, the denitrification spray gun is easily damaged.
Background of energy-saving transformation for fly ash reuse: The original 3 # dust removal and return system was powered by a Roots blower with a power of 18.5KW to supply air and transport fly ash to the boiler. To save energy, the original 3 motors were temporarily stopped (standby) and replaced with axial flow fans for compressed air blowing, effectively improving the efficiency of ash return and reducing the use of energy and electricity. The discontinuation of the original fan greatly saved electricity consumption and daily maintenance costs, saving about 222 kWh per unit and shift, and saving an annual electricity fee of 101232 yuan, which saved costs for the workshop. After experimental verification, it has been proven that the effect is significant. The blowing device of the fly ash re ignition system for boilers 1 and 2 has also been upgraded and transformed to compressed air assisted blowing, reducing power consumption and lowering production costs.
Background of the technical renovation of the primary air temperature of the waste heat heating boiler in the fixed discharge expansion vessel: In order to ensure a certain amount of discharge, namely continuous discharge and regular discharge, the 3 # boiler needs to meet the normal operation of the boiler. These wastewater are subjected to flash evaporation expansion in the designated discharge expansion container, and the flash evaporation steam is directly discharged into the atmosphere. Resulting in steam waste, in response to issues such as low exhaust gas temperature and poor heat transfer efficiency of the air preheater during the operation of the boiler and the discharge of exhaust gas from the fixed exhaust expansion vessel, after communication between workshop technicians and multiple technical personnel in the same industry, the exhaust gas from the fixed exhaust is used to heat the inlet air temperature of the primary fan, increase the primary air temperature, reduce the temperature difference of the boiler air preheater heat exchanger, increase the boiler operating cycle, and reduce waste of exhaust gas.
Innovation technology field of energy-saving system for boiler fly ash reignition: energy saving and consumption reduction, improving production capacity, and stable operation. Background conditions: The original 3 # boiler operated at a high bed temperature and load close to 980 ℃, which posed a risk of coking during operation. In addition, the risk factor of boiler load adjustment was relatively high. The outlet temperature of the furnace was between 880 ℃ and 920 ℃, which increased the combustible materials in the boiler fly ash, made it difficult to control nitrogen oxides, and increased the use of urea. This not only increased production costs, but also posed safety operation hazards.
The lime gypsum desulfurization method is currently the main direction of desulfurization process development. The characteristic that lime gypsum desulfurization does not affect boiler output has made it a widely used method in current desulfurization processes. It is currently the most technologically mature and stable desulfurization process in the world
The company currently has a headquarters and a production base in Lianyungang, with a standard steel structure factory building of 3000 square meters. The main equipment includes one 25t crane, one 4m CNC shearing and bending machine, one 2.5m rolling machine, one semi-automatic 4m resistance welding machine, one 36t punching machine, and 15 sets of various welding equipment. The company has also cooperated with a noise laboratory in universities. The company has now gathered an experienced professional team in on-site surveying, data collection, design, experimentation, manufacturing, installation and commissioning services, gradually forming a comprehensive noise control enterprise with various soundproof cosmetic boards as the leader and other related noise control products as the basis!
The air suspension centrifugal blower uses air bearings, direct connection technology, high-efficiency impellers, permanent magnet brushless DC motors, and no additional friction. The fan automatically adjusts the power consumption of the motor based on the output (adjustable air volume range of 40-) to maintain high efficiency in equipment operation. Generally speaking, after technological transformation, it can save 30% -50% energy compared to the original equipment and increase the surplus by 15% -20%.
Variable frequency speed governor. Hydraulic couplings use the conversion between mechanical work and working oil kinetic energy to transmit torque. Although they have a simple structure, low investment, long service life, and can achieve stepless speed regulation and no-load starting, their energy conversion efficiency is low, the speed regulation accuracy is poor, and the working oil is prone to aging and needs to be replaced regularly. They are gradually withdrawing from the market of energy-saving speed regulation for fans and pumps. Variable frequency drive belongs to electrical speed regulation and is a widely used speed regulation method with significant energy-saving effects. However, variable frequency drives are complex electronic devices with low reliability, high failure rate, high requirements for the environment and power grid quality, and are prone to harmonic pollution affecting the power grid. Therefore, harmonic control equipment needs to be added. When using high-voltage frequency converters, it is even necessary to build specialized air-conditioned rooms for cooling and dust isolation.
