Focusun mine cooling machine

Mine Cooling System – Focusun Turnkey Solution

For mines at extreme depths, climate stress is largely intensified due to growing shaft depths and increasing concentration of digging results in higher temperature inside the mines. To improve the underground working situation is to cool down the ambient temperature and provide enough air and dilute air to an acceptable level.

Compared with conventional chilled water systems, mine cooling systems with air cooling have been proved to be the optimum tactics. As the leading manufacturer in the refrigeration industry, Focusun has dedicated itself into researching and developing latest applied refrigeration technology. After large amounts of financial and time investment, Focusun succeeded in designing and manufacturing a set of modern high-performance mine cooling systems. In cooperation with end users and appropriate experienced companies, Focusun keeps perfecting the design of mine cooling and has repeatedly proven its competence in engineering, programming, installation and commissioning in a variety of mine cooling projects worldwide.

Focusun Coal Mine Cooling System

Focusun's typical mine cooling system consists of a screw compressor, air-cooling condenser, liquid reservoir, throttling device, air cooler, gas-liquid separator and oil cooling devices. Except these main components of the mine cooling system, another important machine, the Diesel-powered generator, is applied to ensure a continuous power supply.

Focusun provides leading coal mine cooling system and designs customized solutions which can lower the temperature under the mine effectively and assure safety of workers. Years of project experience and numerous successful cases bring us confidence to provide the most suitable mine cooling system.

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Focusun Mine Cooling System FAC-450AH

Focusun Ventilation and Cooling in underground mines has been applied in a variety of mine cooling projects worldwide. After years of researching, a central cooling system at ground level has been proved to be the most economic way to release the climate stress in deep mines. The concept of our mine cooling system was designed, realized and perfected on the basis of cooperation with end users.

Subject	Unit	Technical parameter
Power supply	Voltage/Phase/Frequency	380V/3P/50Hz
Refrigerant		R22 or R404A
Air Volume	m3/min	1680
Temperature	Inlet air temperature	℃	26
Outlet air temperature	℃	-5
Operating power	Total running power	Kw	615
Installment power	Kw	774
Compressor	Manufacturer		Bitzer
Condenser	Fan power	Kw	0.35
Cooling way		Air cooling
Dimension	Size of equipment	(L×W×H)(mm)	12192×2438×2895
Operating weight of mine cooling system	MT	10

Focusun™ mechanical technique is top of topthe line and has gained our expertise ion Mine Ventilation Cooling Systems. For your best Focusun experience, we keep improving and upgrading our services. Please watch videos of some frequently asked questions about Focusun, our product and services.

Also see the following answers on how to solve both common and complex problems with your Focusun products. We understand it may not always be convenient to read and troubleshoot with your user manual. That is why we have improved our services to allow you watch and follow some steps in solving problems as they arise.

If you encounter further problems or want to see another issue resolved, please send an email to enquiry@focusun.com with the video/problem topic and we will make a video demonstration for your reference.

Overview Block Ice Machine

How to cool down a Coal Mine?: There are two major ways of coal mine cooling, including mining technique and mechanical refrigeration technique. The former is to pre-cool the coal seam by ventilation cooling or reforming coal mining technique. The latter is to cool down through ice machine.
What's the difference between the Mine Ventilation Cooling and Mine Cooling with Ice Machine?: Though mining technique method with chilled air is more economical, it has limited effect, only cooling down by around 2℃ and cannot meet the coal mine cooling requirements. Currently the most effective cooling way is adopting ice machine system.
What are available refrigeration systems?: Focusun Ice Machines are available with a variety of refrigeration systems: air cooled, water cooled and ammonia system.
What do I do in case of power shortage?: First turn off your machine using the PLC Control. Then switch of the main power supply and unplug the connecting cable if necessary. Leave your machine stationary until the power shortage is solved. Now in a reverse cycle, plug the connecting power supply cable and switch on the main power supply. Leave this for 1-2 minutes and then turn on your PLC Control. Your machine should be working normally now.
My machine is malfunctioning but the PLC Control doesn't indicate the problem?: The PLC Control will typically indicate a problem with your machine with amber or red light on your PLC Control. If you have problem in your machine but the PLC Control is not indicating, please reboot your PLC Control by switching it off for 5-10 minutes. Restart your PLC Control and your machine should be working or indicating the error now. If this fails to be the case, please contact your own professional engineer or contact your professional and friendly Focusun After-Sales-Team for your solutions.
Why compressor disturbance indicator light is on?: Check whether wires are loose, there is lack of phrase and whether the set value is normal; Check whether the compressor is over heat. After the motor is cooling down, it will reset automatically; Replace compressor temperature control module; Whether cooling system is running normally, if not, Condenser needs cleaning; Check high/low pressure set value or change high/low pressure switch;

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Focusun is always eager to accept challenges and overcome the problems we encounter. We keep expanding our business scale rather than getting stuck in the field where we have already achieved great success.

In 2012, assigned by a mine operator in outer Mongolia, Focusun took the responsibility for its gold mining cooling project. Our mine cooling system is capable of keeping the underground permafrost from melting during April to December and thus ensures the safety of workers underground.

Project Summary

Challenge: precisely specifying the cooling capacity and working out the complex solution

Formulating an accurate plan after taking all factors into consideration, including volume of air flow, humidity, ambient temperature and internal temperature of the permafrost.
Performing scenario simulations to modify the plan repeatedly to be able to draw an accurate conclusion.
During the installation phase, reconfirm the choice of equipment for additional accessories to ensure high performance in the extra-deep mine.

Our solution: Putting together a team of experts to repeatedly perform simulations and keep improving the plan

We formed a team consisting of 4 refrigeration engineers, 3 electrical engineers and 2 structural engineers, led by the vice president of the company. Everyone contributed their expertise to the team for an efficient and successful completion of the project..
Hypotheses about the project characteristics were comfirmed by meticulous research of the underground mine environment. We kept adapting the plan and after 4 versions were made, we had a final program that satisfied our customer and ensured mutual success.
An exemplary part of that plan was the power supply. Among several solutions, we found that a diesel generator is the best solution to ensure a reliable and trouble-free operation of the mine cooling system.

Contacts & Support

Focusun Refrigeration Corporation
Room 603, Baohong Center
No. 7755 Zhongchun Rd
Shanghai CHINA
ZipCode: 201100

Tel: +86-21-5108 9946
Fax: +86-21-5227 2259
Email: enquiry@focusun.com

Sales: sales@focusun.com
Marketing: marketing@focusun.com
Press: press@focusun.com

Newsletter: newsletter@focusun.com

Mine Cooling System – Focusun Turnkey Solution

Focusun Coal Mine Cooling System

Focusun Mine Cooling System FAC-450AH

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