CN102230396A - Filling method capable of exploring while

The invention discloses a filling method capable of exploring while filling coal mine goafs, solving the existing problem by that a buttress is filled before direct top inbreak after a working face is boosted. The technical method for construction comprises the following steps: determining the amount and thickness parameters of the buttress; preparing a paste-like material; arranging a

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Hot Sale Small Portable Concrete Mixer Price with Pump

7.hydraulic oil replacement steps electric concrete pump. Under the condition of normal use of concrete pump oil change period is one year to a year and a half.This cycle is not absolute, should also be adjusted according to actual usage;Such as using the environment and the status of the temperature, working hours, machinery, etc.Can generally

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Application of Foam Concrete in Coal Mine

Dec 21, 2017 · In the near future, foam concrete used for coal mine will have a role to play in backfilling materials, supporting materials and water blocking materials in mines. First, backfill. 1. Goaf backfill. Our country is a big country for coal production and consumption. However, long-term coal mining has led to the formation of large-scale subsidence

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2ZBQ-9/3 Mining Pneumatic Injection Pump,2ZBQ-9/3 Mining

2ZBQ-9/3 mine pneumatic injection pump is mainly used for coal, iron ore and other wall waterproofing, grouting works, as well as subways, tunnels, water, construction and broken rock grouting works .

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Putzmeister - Mining Technology | Mining News and Views

Putzmeister's mobile shotcrete equipment applies concrete in mines and tunnels all over the world, with concrete output rates of up to 30m³/h and spraying reaches of up t 09 May 2011 Putzmeister Truck-Mounted Concrete Pump is Used to Cool Fukushima

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5 Cubic Meter Per Hour Concrete Spraying Machine, Tunnel

SPZ3000 shotcrete machine is a universal concrete spraying machine for the processing of wet or dry mix. SPZ3000 due to its full pneumatic driven unit, for the required anti-explosion applications, such as coal mining, tunnel and underground engineering, this unit is perfect and specific one.

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Pump Types Guide - Find the right pump for the job

Mining, minerals processing, transportation of slurries for processing, and dredging. Also pumps used in slurry applications in coal fired power plants, steel mills, cement mills, etc. Very abrasive liquids of all types. Ordinary pumps wouldn't withstand the abrasive wear that slurries cause on pump parts.

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Safety Led Miners Headlight - China coal mining equipment

LED Miners Headlight. 1. Damping Properties:Our helmets could stand the impact of 5kg-weight hammer falling from 1M height. 2. Anti-penetration Properties :3kg cone falling from 1m-height is …

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application Gaode Equipment Co.,Ltd. - grout mixer pump

Trailer concrete pump and JS series forced type concrete mixer used together in bridge building. Trailer concrete pump is widely used to convey floor heating lightweight foamed cement, mortar, fine aggregate concrete, concrete.

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One-Stop mine concrete pump Depot From Leading Sellers

About product and suppliers: Your search for high quality and adept mine concrete pump ends with the product line at Alibaba.com. Offered by the leading and prominent suppliers, keyword} categories on the site are sure to catch your attention the very first time. Have a glance at some of the most proficient mine concrete pump and decide on the best ones for all your needs.

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cummins brand trailer mounted concrete pump

Trailer Mounted Concrete Pump Focus. Home > Products > Concrete machine > Trailer mounted concrete pump This kind of concrete machinery is made up with mechanism hydraulic and electricity system. It is widely used in coal mine seaport airport highway and office building. Get Price

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How concrete block is made - material, manufacture, used

The concrete commonly used to make concrete blocks is a mixture of powdered portland cement, water, sand, and gravel. This produces a light gray block with a fine surface texture and a high compressive strength. A typical concrete block weighs 38-43 lb (17.2-19.5 kg).

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Pump design and its effect on mine safety and efficiency

Pump design and its effect on mine safety and efficiency

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XPB-90 Series High Pressure Grouting Pump

XPB-90 high pressure grouting pump mainly applied for high pressure rotation grouting for ground work treatment, curtain grouting, blocking leakage at the mine, anchor at the slope and so on. Features. Low noise. can keep working continuously for 24 hours. Simple maintenance and Long life.

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Pump Types Guide - Find the right pump for the job

Mining, minerals processing, transportation of slurries for processing, and dredging. Also pumps used in slurry applications in coal fired power plants, steel mills, cement mills, etc. Very abrasive liquids of all types. Ordinary pumps wouldn't withstand the abrasive wear that slurries cause on pump parts.

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China Sany Hbt5008c-5s 50m3 H Hydraulic System Concrete

Capable of operating under any condition from -22°C to 55°C, operating continuously for up to 12 hours, can handle any fluid, pumping of difficult concrete like B90, C150, and 3-gradation concrete and even pump materials such as silt, slag, waste materials, and mortar.

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Company Overview of China Manufacturer - Xiangtan Huaxing

With 200+ successful cases in concrete pump machinery and construction equipments projects. Huaxing has got the CE certificate, and Ukraine′s Coal Mining Safety certificate and permission. Cooperated with Ukraine largest energy company, DTEK group, the world top 500, and established a long term and friendly partnership. Huaxing′s mission

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Concrete Pumps | Cement Pumps | Pump Truck | Concrete

Concrete pumps are machines used to transfer liquid concrete from one area to another via steel or flexible concrete placing hoses. Those hoses lead to where ever the concrete needs to be placed. Concrete Pumps come in a variety of sizes to accommodate rate of out put …

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Refurbished Concrete Trailer Pump Hbt80 Different Output

Capable of operating under any condition from -22°C to 55°C, operating continuously for up to 12 hours, can handle any fluid, pumping of difficult concrete like B90, C150, and 3-gradation concrete and even pump materials such as silt, slag, waste materials, and mortar. - Advanced Hydraulic System. 1.

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China 2zbq-9/3 Mining Pneumatic Grout Injection Pump

Introduction of 2zbq-9/3 Mining Pneumatic Grout Injection Pump 2zbq-9/3 Mining Pneumatic Grout Injection Pump is mainly used for coal, iron ore and other wall waterproofing, grouting works, as well as subways, tunnels, water, construction and broken rock grouting works .

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