high efficiency 8000kg per hour steam coal boiler

Winter is the peak heating heating, but also prone to accidents of special equipment such as high efficiency 8000kg per hour steam coal boilers. To effectively prevent and curb the occurrence of accidents, equipment thorough investigation to eliminate safety hazards, Hunan Province to carry out safety hazards investigation work in the province within the boiler, boiler equipment and punishes the security measures are not in place.

Yueyang City bearing the brunt of the provincial government in response to the call for in food, pharmaceutical processing industry, boiler equipment, pressure vessels, pipelines, etc. investigation and remediation, further investigation and security risks, strengthen supervision, which ensures safe operation of special equipment.

Zhuzhou City, the relevant departments to implement the special equipment safety responsibility, collective interviews conducted meetings, some special equipment overdue inspection or rectification in place of business risks not to be interviewed. In order to urge them to get inspection reports in order to restore operation, to ensure the safe use of special equipment. But also warned of these enterprises, if not through legal regular inspections, not only safety and production are not effectively protected, will be severely punished.

The heat loss of exhaust smoke is the largest of all kinds of heat loss in high efficiency 8000kg per hour steam coal boiler. Generally, the heat loss of exhaust smoke is 6% of the heat fed into the furnace, and the heat loss of exhaust gas increases 0.5% when the temperature of exhaust gas increases by 12 ℃ and 15 ℃. So the exhaust temperature is one of the most important indicators of boiler operation. The following are several possible causes of increased flue gas temperature in the furnace: (1) slagging and ash accumulation on the heated surface. No matter it is the slag accumulation in the water-cooled wall of the furnace, or the ash deposition in the superheater, convection tube bundle, economizer and preheater, the thermal resistance of the flue gas measurement will increase, the cooling effect of the flue gas will become worse due to the deterioration of the heat transfer, and the exhaust temperature will rise. (2) excess air coefficient Big. Under normal conditions, the exhaust temperature increases with the increase of excess air coefficient at furnace outlet. After the increase of excess air coefficient, although the amount of smoke increased, the rate of smoke increased, and the convection heat increased, the increase of heat transfer was not as much as that of the increase of flue gas. It can be understood that after the increase of smoke speed, the flue gas leaves the heating surface without time to transfer heat to the working fluid. (3) the air leakage coefficient is too large. The flue gas leakage in the furnace and rear shaft of a negative pressure boiler is inevitable and the leakage coefficient allowed by a certain heating surface is specified. When the air leakage coefficient increases, the effect on the exhaust temperature is similar to that of the superheated air coefficient. And the air leaks away. The closer the furnace is, the greater the influence on the rise in exhaust temperature. (4) Water supply temperature. When the steam turbine load is too low or the high pressure heater is out of line, the feed water temperature of the boiler will be lowered. Generally speaking, if the fuel quantity is kept constant, the heat transfer temperature difference of the economizer decreases and the heat absorption of the economizer decreases when the feed water temperature is increased, which makes the exhaust temperature increase. (5) moisture in the fuel. The increase of moisture in the fuel increases the amount of smoke, thus increasing the exhaust temperature. (6) Boiler load. Although the boiler load increases proportionally, the amount of smoke, the amount of steam, the amount of water supplied, and the volume of air increase proportionally, however, the flue gas temperature at the furnace outlet increases proportionally. Increase, so that the exhaust temperature increased. After increasing the load, the outlet temperature of the furnace increases, the heat transfer temperature difference of the convection heating surface increases and the heat absorption increases. Therefore, the more the convection heating surface is, the less the influence of the boiler load on the exhaust gas temperature is. (7) fuel varieties. When the low calorific value gas is fired, the radiative heat transfer in the furnace decreases due to the decrease of furnace temperature, and the non-combustible components in low calorific value gas, mainly N _ 2, CO _ 2 and H _ 2O, increase the amount of flue gas, so the exhaust temperature increases. Although the excess air coefficient of furnace outlet is lower than that of coal burning, the ash content in the fuel oil is very low after the pulverized coal furnace is changed to burn oil, although the excess air coefficient at the furnace outlet is lower when burning oil. There is no larger ash particle in flue gas, and there is no cleaning effect of larger ash particle on the heating surface, and the convection heating surface is polluted more seriously. Therefore, combustion is not good, often smoke-emitting boiler smoke temperature rise. When there is a steel ball dust removal device at the tail, the exhaust temperature is slightly lower than that of burning coal because the tail is cleaner. (8) the operation mode of pulverizing system. For a closed pulverizing system with a silo, when the pulverizing system is in operation, as a part of the water in the fuel enters the furnace, the furnace temperature decreases and the flue gas increases, and the cold air leaking into the pulverizing system enters the furnace as a primary air during the operation of the pulverizing system. Reduction of air flow through air preheater To raise the exhaust temperature. On the contrary, when the pulverizing system is shut down, the exhaust temperature decreases.

Our Client from Russia, visited our factory, the high efficiency 8000kg per hour steam coal boiler manufacturing line. Considering their snack food factory daily steam requirements and rice corn cob biomass fuel advantages, our engineer recommended 4 ton DZL series biomass boiler for him. DZL series biomass boiler, can burn coal fuel and biomass fuel together. This can save fuels costs, and enhance boiler thermal effect. Another feature is DZL series structure, the packaged boiler is easy to ship, small land occupation. We reach an agreements to delivery this boiler in 45 days after receiving the order payments. We can delivery this boiler by load or by sea into Russia. Its is a kind of chain grate boiler, running biomass fuels into its chamber by chain grate. In our company, coal and biomass boiler thermal transferring efficiency can reach 85%.

Select gas steam high efficiency 8000kg per hour steam coal boiler What are the benefits? As the state continues to pay attention to energy conservation also contributed to the gas steam boiler flourish among industries, companies are willing to choose high cost of both energy efficient and low thermal efficiency of the boiler as use. Most assured gas steam boiler in addition to providing rapid release of steam heating, but also can reduce fuel combustion load to reduce the input costs of enterprises. The specific choice of gas steam boiler using the benefits of Look Xiao Bian explained below: 1: The biggest benefit is the economic use of gas steam boiler can save a lot of material costs for the business users do not need to spend lots of money to purchase a large amount of coal fuel , only need to use good cleanliness of natural gas can be released by combustion of steam used. Gas can also improve the thermal effect of reducing the material input costs of users. 2: Security is well known that natural gas is the safest non-polluting fuel cleanliness good a non-toxic, unlike gas or liquefied petroleum gas leak after precipitation on the ground will burn even cause accidents. Process gas steam boiler during conveying gas selected gas is the most secure, but also easily found after leakage during use and therefore is the most secure way. 3: convenient gas steam boiler in use is the most convenient one, so will much of each enterprise users of all ages. Are used in natural gas pipelines like the convenience of home tap water, and sustainable use will not be any trouble. Eliminating the need to transport coal use and clean-up or stacking cinder and other tedious work. 4: Clean the reason why gas steam boiler in the market to get a high rating, but also because it is clean and not contaminated during use and does not have the black bottom of the pot and no air pollution. So compared to other boilers in use is the cleanest one way, whether for work or residents of the surrounding operation of the enterprise itself or cleaner can not affect physical and mental health. In summary, the small series is about the use of gas steam boiler of four benefits, the boiler is an important source of power in many businesses also use the state-owned valuable energy channels. Professional gas steam boiler can not only save the country more valuable fuel resources, but also in the use of energy saving and improve exhaust gas air pollution.

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