2, waste batteries 2340 yuan / ton;
3, industrial waste 2340 yuan / ton;
4, instrumentation and electrical wastes 1680 yuan / cubic meter; (the above four categories do not include transportation, pre-treatment costs)
5, photographic waste liquid 2600 yuan / ton;
6, waste film 1000 yuan / ton;
7, waste film 1500 yuan / ton;
8, washed waste photo paper 1000 yuan / ton
1, the source of dust in the coal transmission system of the thermal power plant
(1) the incoming coal original dust, in the process of mining or processing of coal to produce fine solid particles;
(2) transit Coal dust, in the unloading process, large particles of coal are broken into small solids due to collision with equipment and other objects;
(3) Storage coal dust, due to the crushing of vehicles in the coal yard, weathering of coal, and spontaneous combustion of coal, etc., which makes the particles of coal smaller to form coal dust, and the coal dust generated by this process is storage coal dust;
(4) Processing coal dust, which is generated during processing and crushing of coal is Processing coal dust;
(5) other coal dust, this type of coal dust is characterized by the generation of diverse pathways, the amount of generation varies greatly with the different conditions of the equipment.
In the above sources of coal dust, the original coal dust, storage coal dust, processing coal dust is generated in larger quantities, and the amount of transit coal dust and other coal dust is smaller. Therefore, the control of incoming coal dust, storage coal dust, processing coal dust should be the focus of the coal transportation system dust control work.
2, thermal power plant coal conveyor system dust management measures
2.1 Seal the coal drop point
Seal the coal drop point can effectively control the spread of dust.
In the process of sealing, the main thing that needs to be done is to improve the structure of the sealing strip and the quality of the guide groove, and form a double-layer structure in the cross-section of the sealing strip and the guide groove, which can make the dusty wind reduce the diffusion amount and speed, and reduce its ability to carry dust in the process of diffusion, thus effectively reducing the pollution of dust on the environment.
You can also add asbestos cloth in the combination between the guide plates of the guide trough, this measure can effectively improve the sealing effect of the coal drop point, effectively reduce the amount of air leakage, and ultimately realize the purpose of controlling dust and reducing pollution. When the sealing strip or guide trough is defective or damaged, it should be repaired in time to ensure the sealing effect of the coal drop point
.