At present, the drilling and boring method and the roadheader method are mainly used for construction.
1. Method for driving rock section of inclined shaft
(1) Mechanical or manual excavation
In the soft rock formation, the inclined well is currently used for mechanical excavation. Small jib tailless excavators are usually used.
(2) Drilling and blasting method
Drilling and blasting construction sequence: blasting design according to lithology - drawing blasting chart - lining the waist line (or laser pointing) - eye-catching - gas inspection - charging - gas inspection - shooting - ventilation - safety, gas inspection - out Hey.
(3) Roadheader tunneling
At present, the roadheader used for the excavation of the inclined rock section is a partial section boring machine, also known as a comprehensive excavator.
Digging Machine process: security check - Digging Machine cutting a temporary excavation support - look for the top dozen top anchor (anchor) eye a shop roof metal roof channel Liangyi An installed a network anchor (anchor Cable) - Cut the help - the anchor bolt eye - laying the metal mesh, steel beam beam - installation anchor.
2. Inclined well construction drainage and transportation
(1) Inclined well construction method
Commonly used mounting machines include bucket loading machines, excavators, loaders, and the like. The bucket rock loader is suitable for inclined wells of any slope, which is conducive to parallel operation. The excavator has strong applicability, especially in rock formations with large water content, which can be used for topping, clearing, and transporting small appliances. The loader is suitable for gentle slope inclined wells, which has fast loading speed and can transport materials and utensils.
(2) Construction method of inclined shaft construction
The operation method of the gentle slope inclined shaft can be carried out by using an explosion-proof trackless rubber tire car, a belt conveyor machine, a shuttle car, and the like. The operation method of the steep slope inclined shaft can be transported by mining car, bucket, and belt conveyor, and a few are transported by shuttle.
(3) Inclined shaft construction to enhance safety facilities
Anti-sports car is an important safety measure for the promotion of inclined shaft. The so-called "three slopes of one slope" is the main measure for preventing sports cars. In addition to this, it is necessary to install an anti-sports guard that can stop the vehicle that is running the rope and is unhooked.
3. Permanent support for inclined shaft construction. Anchor spray support is widely used now.
4. Drainage construction drainage: The drainage method of inclined wells should be determined according to the amount of water inflow and the length of the inclined well. Generally, three-stage drainage is adopted.
(1) Working surface drainage (primary drainage): Commonly used pneumatic turbine submersible pump (commonly known as wind pump), pneumatic diaphragm pump, BQS mine explosion-proof submersible sand pump (commonly known as electric submersible pump).
(2) Two-stage drainage station: The drainage station is located at a distance of at least 5m from the construction equipment of the working face, considering the allowable displacement of the first-stage drainage equipment, and has a margin of 10%. The drainage equipment is equipped with at least two units, one for work and one for standby. The flow rate of each pump should be 2-3 times of the total water inflow, and the head should be larger than the drain to the third stage or to the ground, and there is more than 10% of the surplus. The secondary drainage station moves forward as the work progresses.
(3) Three-stage drainage station
The water from the secondary drainage station is discharged to the ground through the tertiary drainage station. The capacity of the water tank is greater than the capacity of the temporary water tank of the secondary drainage station. The inner diameter of the drainage pipe of inclined shaft construction should not be less than 100mm, and the thickness of the pipe wall should be determined by the strength calculation.
5. Inclined shaft construction ventilation
(1) Ventilation method for single inclined shaft construction: press-in ventilation
(2) Double inclined well construction ventilation
When the wellbore is constructed to a certain depth, in order to solve the problem of long-distance ventilation, the communication lane can be constructed between the two inclined wells, the ventilation system can be adjusted, one wellbore enters the wind, one wellbore returns to the wind, and the local fan can be moved down to contact the upper intake shaft of the lane. At the same time, the temporary fan is returned to the air at the upper end of the return air well.
Side-suction Grinding Dust Collector
1. Product description:
Side suction grinding dust collector is a kind of dust and smoke collector designed for grinding. It can collect and purify the grinding dust at source and emission the purified air into workshop.
2. Moland Product Series
Portable Fume Extractor series: MLWF50, MLWF70, MLWF100, MLWF360, MLWF120, MLWF200, MLWF280-basic, MLWF280S, MLWF290, MLWF300, MLWF300A, MLWF350, MLWF350D, MLWF400, etc.
Stationary fume extractors: MLWF350-dust bucket type, MLWF500-6T, MLWF500-6T dust bucket type, MLWF500-9T, MLWF800, MLWF800-dust bucket type, MLWF1000, MLWF1500, MLWF2000, MLWF3000, MLWF3500, MLWF4000). The electric control cabinet can be seperated from main equipment for convenient operation when the main equipment is placed outdoors.
Grinding dust extractors: MLWF100D, MLWF150D, MLWF200D, MLWF320-DM, MLWF180, MLWF380, MLWF480) and grinding cabinet (MLWF900). The grinding cabinet is usally equipped with telescopic or fixed grinding room, to form a semi-closed space to control dust and smoke spread. It also improves the filtration efficiency with low air volume and energy consumption.
VOCs treatment
3. R&D
In order to provide advanced products, our R&D department develops 3 to 5 new products every year, and irregularly improves the performance, appearance, and installation methods of existing products.
4. Certification
All our products are approved by CE, ISO9001, ISO14001, utility model patent, design patent, Program copyright, etc.
5. Exhibition
Moland participates at least 5 industry exhibitions each year.
6. Central Fume Extraction System
1) Cantilever type fume extraction system
Cantilever dust removal can be used for manual welding conditions where the work stations are evenly distributed and the span is small. The smoke and dust generated by each welding station can be effectively absorbed at the dust generation point, and will not pollute other parts of the workshop. The skeleton of the suction arm is similar to a human arm and can hover in a space within a certain length. The outer layer of the suction arm is a temperature-resistant hose, which not only prevents the hose from being burned by sparks, but also ensures the flexibility of the movement of the suction arm. A unique rotating structure is designed on the position of the Suction Hood to ensure that the suction hood can be aligned with the welding position in any orientation, so that the suction arm can effectively capture the smoke and dust generated during the welding process. The advantage of the suction arm capture is that it can be close to the place where the smoke is generated, and the collection effect is better.
2) Hood suction type fume extraction system
Cantilever dust removal can be used for manual welding conditions where the work stations are evenly distributed and the span is small. The smoke and dust generated by each welding station can be effectively absorbed at the dust generation point, and will not pollute other parts of the workshop. The skeleton of the suction arm is similar to a human arm and can hover in a space within a certain length. The outer layer of the suction arm is a temperature-resistant hose, which not only prevents the hose from being burned by sparks, but also ensures the flexibility of the movement of the suction arm. A unique rotating structure is designed on the position of the suction hood to ensure that the suction hood can be aligned with the welding position in any orientation, so that the suction arm can effectively capture the smoke and dust generated during the welding process. The advantage of the suction arm capture is that it can be close to the place where the smoke is generated, and the collection effect is better.
3) Room tupe fume extraction system
Room-type dust removal is suitable for the purification of fumes and smoke generated during the production of automated equipment, such as welding robots, welding machines, grinding, grinding and polishing of metal and plastic parts, drilling, thermal processing, cutting and crushing, stone processing, powder packaging, solid particles and various dusts and fumes produced by mixing and processing.
For working conditions such as robot automatic welding, circular seam and longitudinal seam welding, the smoke and dust purifier is installed with the robot workstation, so that the workstation has its own dust removal function. The fume and smoke are effectively collected through equipment components such as pipes and dust hoods. The room-type design prevents the volatilization and diffusion of smoke to keep the air in the workshop clean.
The working conditions with moderate welding workpieces and large amounts of dust and smoke are suitable for room-type treatment solutions. The room type centralized dust dedusting solution is divided into side suction and top suction method dust collecting ways. The appropriate solution can be designed according to the site conditions and treatment goals.
4) Blow suction type fume extraction system
Blow-suction type dust removal solution is a ventilation air flow composed of blown air and inhaled air flow. Therefore, it is a dust removal method that can effectively control the spread of pollution sources. This dust removal method is installing exhaust inlets on two-span center column or single-span side column (wall) and air outlets on the opposite wall column to form a circulating air flow to drive the smoke and dust into the purification machine, consequently performing overall dust removal and purification in the workshop. This system occupies a small area and has obvious purification effect, which is suitable for the purification of smoke and smoke in more complex production workshops.
7. Company information
Jinan Moland Environmental Tech Co., Ltd., is located in No. 11889 Jingshi West Road, Changqing District, Jinan City, Shandong, China, established in 2016. It`s an environmental protection technology enterprise specializing in research, development, manufacture and sale of efficient smoke purification systems.
The company is committed to reducing the environmental impact of production process, protecting workers from harmful gases and dust, and creating a cleaner working environment. At present, the company′s products have been successfully applied in automobile, railway, construction machinery, marine engineering, aviation and other mechanical processing industries, as well as new materials, grain, wood, recycled resources processing and other industries. The company has passed the ISO 9001 quality management system certification, obtained the certification of China Environmental Protection Products issued by China Environmental Protection Industry Association, and CE certification of EU. It also has a number of invention patents, utility model patents and appearance patents. Through continuous R&D and innovation, many products of the company have reached the international leading level.
Moland′s environmental services cover the whole process from project design, product manufacturing to installation, commissioning and after-sales service. We will provide you with the most professional governance program and the best quality service.
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Jinan Moland Environmental Tech Co.,Ltd , https://www.sdmoland.com