Health and Environmental Protection of Mining Engineering Construction Sites
Pet Prefrom Injection Molding Machine
1. High definition liquid crystal display
7. Dehumidification dryer specially selected to meet the dehumidification requirements of PET raw materials.
10. It has operation, auxiliary and fault indication functions
The bottle cap and bottle embryo Injection Molding Machine is a special type of PET bottle cap and bottle embryo developed by Zhonghao Machinery according to the characteristics of the PET molding process. Besides all the advantages of the standard model, it has also made mature improvements to ensure the excellent molding of PET bottle cap and bottle embryo products. Pet Prefrom Injection Molding Machine ,Pet Prefrom Mold Injection Molding Machine ,Small Injection Molding Machine,Prefrom Injection Molding Machine Ningbo Chenwei Machinery Technology Co.,Ltd , https://www.chenweimachinery.com
2. The impact of dust pollution. The dust pollution of mining projects mainly includes various kinds of mine dust and rock dust. Most of these dusts are directly produced by construction, such as rock drilling, blasting, excavation, etc., and some such as cement dust during construction. Due to the limited underground space, there is a significant hazard to personnel in the work environment.
3. Problems with high temperature working conditions. At present, some construction mines, especially in the south, or deep mine conditions, have encountered or even 40 construction processes. The high temperature environment around it not only severely limits the working ability of the construction personnel, but also seriously affects the physical and mental health of the construction workers; solving the high temperature construction conditions in the underground has become an important and difficult task for some mines.
4. Low temperature working environment problems. When the mine is constructed by the freezing method, it will encounter low temperature working conditions of -10 ° or lower. At this time, low temperature protection becomes an important labor protection work.
5. Radiation hazard. In the development of some constructions with radioactive minerals ( uranium ore), construction workers are often exposed to the radiation of these minerals. Therefore, radiation protection is an important part of the work of developing radiation minerals (uranium ore).
1. Environmental protection of ground sites
(2) Contaminated facilities should be kept away from other work areas and take the dominant downwind position.
(3) The site of the mine project should focus on the supervision of work that may cause pollution and dust. Pay attention to the transportation protection and processing of dangerous chemicals, inflammable and explosive materials and toxic and hazardous substances.
(4) Timely removal of construction waste, prevention of environmental pollution by waste ore and liver stone, strict prevention of the spread of harmful substances and harmful gases and dust, and protection of construction noise.
(5) The installation of explosives and grease reservoirs meets safety requirements and strictly guards the safety of blasting construction.
(2) Special sprinklers or spray devices should be set up in the well, and watered or sprayed at regular intervals.
(3) Adhere to the cleaning work underground.
(4) Wet rock drilling and wet spraying concrete should be used underground.
(5) Hydraulic rock drilling equipment should be promoted for underground rock drilling.
(6) Resolutely implement measures to reduce dust and dust on the working surface, and do a good job of cooling down the high temperature.
2. Large diameter screw design, and large length-diameter ratio.
3. Excellent plasticizing endurance.
4. In addition, it can operate the special tube group for derivative molding and glass PET, and the special tube group for sheet PET.
5. The DID temperature of the feeding drum with more than four sections is accurately controlled.
6. Extended frame, large four-column space, increased capacity and special ejector stroke.
8. Both variable displacement pump and constant displacement pump are applicable.
9. Spring nozzle is optional for machines below 650T, and hydraulic nozzle is optional for 650T machines to meet the special needs of customers and effectively prevent overflow.