What should be considered before dismantling a coal fired boiler?

According to reports, coal-fired boilers have been dismantled in some rural schools in Guanzhong, Shaanxi Province, due to pollution control and smog reduction requirements, making heating a difficult task for teachers and students. The reporter visited Zhengpo Primary School, Lvye Middle School and other schools in Wugong Town, Wugong County, where the children were listening to and learning in the cold. ”

In the cold winter, heating has become an urgent need in the north. But who would have thought that in most places heating has become a necessity of life, some primary and secondary schools in Shaanxi do not even have a minimum heating equipment, and students have to rely on water cups to keep warm, so this situation makes people feel very sad.

It is true that pollution control and haze reduction is a unified environmental protection requirement, coal-fired boilers are also one of the important air pollution, the transformation of backward heating equipment, so that residents can breathe fresh air, this is also needed for people's livelihood. Pollution control and smog reduction must be carried out in earnest, but it is not simply to dismantle the school's heating coal-fired boilers, but to have comprehensive supporting facilities to ensure the normal teaching of teachers and students.

If we look into the details, we can find that the current situation is that after the relevant environmental protection department implemented the requirement to remove the coal-fired boilers, the local education department did not fill the position in time, but threw the heating problem on the school. According to the principal of Zhengpo Primary School, due to the lack of natural gas, air conditioning can only be considered for heating.

But "there is only one transformer in the village, and the power load is not enough"; Although Lvye Middle School has installed air conditioning with all its efforts, "so many air conditioners are running at the same time, and the school's electricity cannot be loaded".

According to reports, this year, the Wugong County education system dismantled a total of 43 heating boilers, involving 31 schools, involving 15,760 students heating problems, these schools are relatively large boarding schools, this year can only use electric heating equipment in some schools. Even schools that are temporarily heated by air conditioners still face a large gap in subsequent operation and maintenance costs.

The children use hot water cups to keep warm in class, and behind them are the machinery, numbness and irresponsibility of the local ** department and some**.

In the long run, the removal of coal-fired boilers is an inevitable requirement for pollution control and haze reduction. But at present, no matter how heavy the task of environmental protection is, no matter how great the pressure of pollution control and smog reduction, it should also be premised on the fact that students are free from cold. With so many children still in the classroom, the local authorities cannot turn a blind eye and should act quickly to solve the heating problem as soon as possible according to the specific situation of each school.

For schools that have removed boilers, increase electric heating equipment, increase capacity transformers, and provide guarantees for subsequent operating costs.

In other areas where coal-fired boilers are also being dismantled, should they also check themselves, and whether there are any children who have to rely on hot water cups to "carry" through this cold winter.

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It depends on whether you are indoor or open-air, our unit is indoor, that is, there is a factory. At that time, there was lifting equipment and rails when it was built, so it was particularly trouble-free to dismantle. But ours is not all demolished, just coal-fired to gas, double steam drum to single steam drum.

So it's not very troublesome, the 26mm drum wall is cut off piece by piece with gas cutting. And in the process of demolition, I am afraid that it will affect the parts below, so I do flaw detection while dismantling, and there are really few people, but they all have operation certificates. It should be from Wuxi Boiler Factory.

Upstairs, the 440t h boiler is not 440 tons. A boiler of 440 tons with a total weight of several thousand tons is definitely there.

Installation and dismantling is to set a quota, this is related to time, look at the construction period, you have to slowly dismantle, 10 people plus the machine slowly dismantled for 1 year can also be dismantled for you.

According to the power plant I have visited, the installation cost of a 440-ton boiler is 50 million.

Like this kind of large project, there must be 30-40 people for demolition, equipped with a large crane (arm length of at least 80 meters, lifting capacity of 250 tons), various cutting torches, general pipes, general torsion tools and other tools, but also to develop a construction organization design plan, is not a simple matter. How can I get 5 million (estimated).

It is not included in income. **Grants are non-taxable income.

What qualifications do you need for scrapping? No, the paperwork is done, and the scrap iron is cut off.

The 20-ton coal-fired boiler, if it is dismantled, will need 5,000 yuan to dismantle. When dismantling, it is mainly calculated according to the actual weight, and there are other things in the boiler, as well as unburned coal and refractory bricks, and they are generally calculated according to the actual weight.

How much does it cost to dismantle a 20-tonnage coal boiler.

Our company's SZL 6-ton coal-fired boiler is about 25 tons, the economizer is about 6 tons, and a 31-ton steel piece.

The amount of steel used in the body of a small coal-fired boiler is generally 5-7 times that of the boiler output figure (excluding the front and rear arches).

4 tons is about 25 tons.

Hello, the 4-ton coal-fired boiler weighs 28 tons, and the net weight is about 25 tons after removing the front and rear arches and bricks.

How many tons of iron are there in a 4-ton coal-fired boiler.

I dismantled two 4-ton coal-fired hot water boilers, one round and one square, plus three dust collectors, for a total of 55 tons of iron.

Demolition can not be done, can be changed to natural gas cost-effective, save a lot of money, our factory is, check the company "Shenzhen Qianhai Huaran Energy ****", for the whole country to do boiler oil (coal) to natural gas, my factory has been changed, very cost-saving, no need to contribute to environmental protection, they invest in equipment to change gas, to ensure the supply of liquefied natural gas, ** is also very cheap, less than 4 yuan a party, you can check their company on the Internet, ask to understand, let them do a plan to compare.

Generally, coal-fired boilers are not cost-effective to change gas, because the design of coal-fired boilers and gas-fired boilers is different, and the thermal efficiency of coal-fired boilers may be reduced after changing to gas.