4 tons of biomass boilers FAQ

　　Q: How much does it cost to transform a 4 ton Coal-Fired Boiler into a biomass boiler?

　　Answer: The material cost is about 35,000. Labor is not good enough. The price gap between regions differs greatly.

　　Question: How to reform biomass fuel in coal-fired boilers, what are the methods?

　　Answer: The method of biomass fuel transformation of coal-fired boilers (1) Use the original or idle chain grate coal-fired boiler body and boiler auxiliary equipment: blower, induced draft fan, slag machine, economizer, reducer, dust removal Appliances, boiler control cabinets, instrument valves, etc., to reduce the investment costs of boilers and auxiliary equipment.

　　(2) Convert the coal hopper used for coal fuel into a closed biomass hopper, and install an anti-tempering device.

　　(3) Install a set of biomass pellet fuel transportation, storage and feeding device.

　　(4) Install a set of spiral biomass pellet fuel feeder, and open an inspection hole at the uppermost position of the conveying pipe connected to the closed hopper at the uppermost end of the spiral feeder, and install a stroke switch to the spiral type The starting and stopping of the feeder motor are automatically controlled. When the screw feeder is installed, the feeding pipe and the ground conveying storage hopper must have a certain inclination angle. In order to save the floor space of the boiler room and at the same time meet the process layout requirements of the boiler room design specifications, the inclination of the feed pipe should be ≤60 °. Installation of screw feeder.

　　(5) Install a set of secondary air supply equipment and secondary air supply pipe on the side of the boiler. One secondary air supply pipe leads to the boiler hearth and one to the closed hopper to ensure that the fuel needs enough oxygen to burn to achieve complete combustion. Secondary air supply equipment installation

　　6) Problems to be noted in boiler reform

　　① The clear distance of the front end of the furnace shall not be less than 3m. After the screw feeder is installed, the distance between the ground conveying storage hopper and the front section of the boiler is 1.9m (take the 2t / h chain grate coal-fired steam boiler as an example). If it is less than 3m, it is not easy to operate and maintain.

　　② Biomass fuel should not be stored in the open air, and should be provided with rainproof, windproof, anticorrosive measures. In addition, during storage of biomass fuel, the temperature of the fuel should be checked frequently to prevent spontaneous combustion caused by excessive temperature.

　　Question: How much steam does a biomass boiler produce per ton of biomass

　　Answer: I will give you a calculation of how much steam can be produced under normal circumstances. The calorific value of biomass is 4200 / kg, the thermal efficiency is 80%, 4200X1000X0.8 = 3360000, 1 ton of biomass is put into the boiler to remove heat loss to get 3360000 Calories, one ton of steam requires 600,000 calories, 3360000 ÷ 600000 = 5.6 tons of steam

　　Question: 4 tons of biomass boiler operates 24 hours, how many particles to burn in a day, the particles are 4000 kcal

　　Answer: A 4-ton boiler is 2.4 million kcal. The thermal efficiency of a typical biomass boiler is 85%, 2.4 million kcal / 4000 kcal / 85% * 24 hours = 16,941 kg of particles per day.

　　Question: How to rectify the 4 tons boiler from coal to biomass

　　Answer: Our rectification of the boiler is mainly through the modification of the grate and blast system to achieve the purpose of changing to burning biomass.

　　Q: What is the price of 4 tons of biomass hot water boiler?

　　Answer: What is the price of 4 tons of biomass hot water boiler? First of all, we need to know that the price of biomass hot water boiler consists of two parts, one is the boiler body, and the other is the auxiliary machine equipped with the boiler. The boiler body is generally easy to determine the price, the price of the boiler auxiliary machine will vary greatly according to the number of auxiliary machines and the material of the auxiliary machine.

　　ask:

　　Is it a technical transformation to change the original 4 tons of coal-fired boilers to 6 tons of biomass-fired boilers?

　　Answer 1: The small-capacity boiler has been replaced by a large-capacity boiler. From a production perspective, it should be counted as a technological transformation project ...

　　Answer 2: Hello, it is not a technical renovation, it is a newly installed boiler,

　　Question: How much gas will be produced by the normal combustion of biomass boilers of 2 tons and 4 tons?

　　Answer: The theoretical gas output of a 2 ton steam boiler is 2000 kg of steam, and 4 ton is 4000 kg of steam per hour

　　Q: How much steam can a 4-ton biomass boiler produce in 1 hour

　　Answer: A 4 ton biomass boiler can turn 4 tons of water into steam in 1 hour. Although the volume of steam relative to water is large, there are many but the weight remains unchanged. It is still 4 tons.

　　Question: Is a 4-ton steam biomass boiler approved by the Environmental Protection Bureau of Dachang?

　　Answer: Hello, this is related to local policies. So it ’s hard to answer.

　　Basically, there are divided into non-combustible zones and non-combustible zones, and they will definitely not be approved. Non-combustible zones can be approved temporarily, but the environmental impact assessment must pass

　　Question: Hello: I want to know 4 tons of biomass boiler; for heating. What is its fuel consumption, what area can it drive, and the source of raw materials

　　Answer 1: The fuel consumption depends on the type of fuel you buy. The sawdust is expensive and the consumption is relatively low; the consumption of straw is large, but it is cheap; the efficiency of straw is low

　　Follow up: Excuse me, how many kilograms of pellet fuel does a 4-ton biomass boiler need in an hour?

　　Answer: I have burnt 8 blunt, good fuel about 15 tons in 24 hours, the difference is 20 tons, I remember this before going to the boiler room to practice.

　　Answer 2: If it is running at full load, the heating area is basically about 24,000 ~ 40,000 square meters. In the cold north, the heating area will be smaller, not very cold, and the heating area can be larger;

　　Fuel consumption is related to the calorific value of biomass and boiler efficiency.

　　Question: How much steam can be produced by a 3900-calorie biomass pellet fuel 4-ton boiler

　　Answer: If these 4 tons of fuel are completely burned, 3900 * 1000 * 4 = 15.6 million calories will be released, the boiler efficiency is calculated at 75%, and 19.5 tons of steam can be generated.

　　Question: 4 tons of biomass pellet fuel boiler, the factory needs 41 tons of steam per day, how much pellet fuel is needed (heat is 4000 kcal).

　　Answer: 4T = 4 * 60WKCAL = 240WKCAL, hourly natural gas consumption B = 240Wkcal / hour / 8000kcal / M3 (natural gas calorific value) = 300M3 / hour

　　Question: How many tons of steam can be produced by a 4 ton boiler per hour, the amount of each fuel consumed, the equipment investment amount (biological particles, oil, electricity, natural gas) for each small consumption, and the equipment installation period and site area?

　　Answer: Use cost: Biomass boiler is the cheapest, environmentally friendly, energy-saving, energy-saving and affordable

　　Question: What components should be replaced for the conversion of coal-fired boilers with a chain discharge of less than 4 tons into gas, oil, and biomass boilers, and the cost difference of producing 1 ton of steam with four fuels

　　Answer: Regarding the cost of fuel, coal: gas: oil, their fuel cost ratio is 1: 2: 4. Among the three, fuel oil is the most expensive, gas is in the middle, and coal is the lowest. But this is not the entire operating cost. Due to the relatively simple operation of oil and gas boilers, the operating cost is about 15% lower than the coal-fired bottom, which means that the total cost of gas and coal is actually about 30% higher. However, the pollution of fuel and gas to the atmosphere is very small.

　　Regarding coal gas or fuel gas, I have never recommended this, because there are too many places that need to be reformed, and there are few places that do not need to be reformed. The cost of renovation is close to buying a new boiler. The cost of transforming coal into biomass fuel is slightly lower, but the fuel source is not stable enough. If the raw material source is stable, it is recommended to use the biomass fuel as coal. In this way, the fuel supply system, flue gas system, etc. of the qualitative modification need almost not be changed.

　　Q: How much biomass fuel is consumed by each cubic steam of a four-ton steam boiler?

　　Answer: This is related to the thermal efficiency of the boiler and the calorific value of biomass. The higher the calorific value of biomass and the higher the thermal efficiency of the boiler, the lower the unit consumption.

　　Question: Can a four-ton biomass boiler be equipped with a 2.5-meter tile lumber line?

　　Answer: Mainly depends on the energy of your tile board line used for hours

　　Question: Can a 4 ton chain steam boiler be changed to burn biomass! How to change it?

　　Answer: It can be changed. It is recommended to modify the biomass boiler for the chain steam coal-fired boiler.

　　The coal-fired boiler was changed to a biomass boiler. The transformation plan was to convert the coal hopper used for fuel into a closed hopper, install a biomass pellet fuel conveying storage hopper, and install a spiral biomass pellet fuel feeding machine. An inspection hole is opened at the uppermost position of the conveying pipe connected with the closed hopper at the uppermost end of the screw loader, and a stroke switch is installed to automatically control the start and stop of the screw loader motor.

　　Question: How much will it cost brothers to convert a 4-ton coal-fired boiler into a biomass boiler?

　　Answer: The transformation cost depends on what you want to transform into, how much thermal efficiency you want to achieve, the highest transformation cost reaches 200,000, and the boiler efficiency reaches 85%.

　　Q: What type of flue gas dust treatment equipment is needed for a four-ton boiler?

　　Answer: A four-ton boiler needs a mcccq pulse bag filter. For dust control

　　Question: How much is a straw burning boiler 4 tons DSL4-1.25

　　Answer: Hello, the model should be DZL4-1.25-T biomass boiler. The specific price needs to be quoted according to your needs.

　　Q: How much is the matching bag dust collector for a 4 ton hand-burning furnace that burns biomass?

　　Answer: Add a heat exchanger to the front of the bag, which not only saves energy but also solves the impact of high temperature flue gas on the life of the filter bag. The 4T upper bag type dust collector is about 100,000

　　Q: Biomass fuel boiler, the current rated steam pressure is 4t / h, how can the calculation support normal operation after changing to 3t / h

　　Rated steam pressure temperature 193 ℃, rated steam pressure 1.25Mpa, feed water temperature 20 ℃, total boiler weight 35.5t. Steam is used in water washing room, ironing, kitchen and dormitory hot water.

　　Is the rated evaporation capacity is 4t / h

　　Answer: It is not simple to reduce 1/4 of the feed. The original blower and induced draft fan matched with 4t / h should be readjusted by the inverter, otherwise the biomass particles calculated by the original 3/4 amount will be burned. Definitely not available.

　　There is a lot of air intake, and the induced wind is fast, which will cause more heat loss than expected, so this piece should also be adjusted accordingly.

　　In the future, ZOZEN Boiler will continue to promote green manufacturing and intelligent manufacturing, promote high-quality development, and strive to become a leading enterprise in the industrial boiler manufacturing industry, provide products and services for more consumers, and make the "ZOZEN" brand recognized by the world Famous boiler brand.

　　For more information about the 4 ton biomass boiler frequently asked questions, please call ZOZEN Boiler Consulting Hotline: 13506151153 and get a quotation.