Economical And Practical Concrete Machine For Mine Tunnel Construction
Description of Dry Sprayer Shotcrete Grouting Machine
Shotcrete machine is a new type of shotcrete machine, which is mainly suitable for concrete shotcrete operation in section roadways. It has a reasonable structure, humanized design, reliable performance, convenient operation and maintenance, and long service life. Dust-free, low noise, and low rebound rate when working. The machine greatly reduces the dust concentration at the side of the machine and the nozzle, improves the working environment of workers, reduces the pneumoconiosis caused by excessive dust, and greatly improves production efficiency. It is an indispensable product for modern mining.
Technical Parameter of Dry Sprayer Shotcrete Grouting Machine
| Model | Pz-5 | Pz-6 | Pz-7 | Pz-5D | Pz-6D |
| Capacity m3 | 5 | 6 | 7 | 5.5 | 6 |
| Power kW | 5.5 | 5.5 | 7.5 | 5.5 | 5.5 |
| Pressure Mpa | 0.4-0.6 | 0.4-0.6 | 0.4-0.6 | 0.2-0.4 | 0.2-0.4 |
| Pipe Inner Diameter | Φ51 | Φ51 | Φ51 | Φ51 | Φ51 |
| Water-cement Ratio | ≤0.4 | ≤0.4 | ≤0.4 | ≤0.4 | ≤0.4 |
Features of Dry Sprayer Shotcrete Grouting Machine
It is mainly composed of the rotor-type concrete sprayer, cement slurry mixer, extrusion-type cement slurry pump, electrical control box, discharge elbow, air system, mixing device, spray gun, rack, and other parts.
(1) Jet machine: It is mainly composed of a hopper, stirring device, discharge elbow, air system, rotor, reducer, and other parts. The motor drives the rotor to rotate through the reducer. Load the mixed material into the rotor, and send it out of the discharge elbow by the air pipeline in the air system, and then the assistant of the auxiliary air inlet pipeline in the air system sends the mixed material through the conveying pipe, Nozzle, spray to the spray surface.
(2) Cement slurry mixer: It is mainly composed of the electric motor, gearbox, water tank, upper mixing barrel, lower mixing barrel, water tank control valve, and feeding valve of the upper mixing barrel. This cement slurry mixer is a double-barrel type. Stir one barrel in the upper bucket first, then put it into the lower bucket for preparation, and after the upper bucket and stir another bucket, then start the mud pump, so that it can work continuously.
(3) Squeeze slurry pump: It is mainly composed of a motor, gearbox, pump casing, eccentric wheel frame, rubber hose, pipe joint, etc. The pump is a positive displacement pump, which does not require irrigation and drainage, and has the strong self-priming ability.
(4) Mixing device: This mixing device is composed of left and right helical stirring assembly and mud input device. Connected to the screw stirring assembly are the delivery pipe and the spray gun.
Application of Dry Sprayer Shotcrete Grouting Machine
The shotcrete machine is used in mines, tunnels, culverts, subways, hydropower projects, underground projects, and shotcrete construction operations in coal mines and swamp tunnels.
1. Underground engineering: Main support and lining of mine roadways, flexible tunnels, hydraulic tunnels, and cavities of various types of use (underground power station underground warehouse. Film, etc.).
2. Thin-walled structural engineering: thin-shell roofs, prestressed construction of reservoirs and storage tanks, etc.
3. Repair and reinforcement work: bridges, seawalls, chimneys, cooling, bridges, dams, tunnels, docks, building structural reinforcement, chemical corrosion, fire, earthquake, explosion shock, overload or construction quality, the most unfavorable factors such as repair damaged structure.
4. Breakwaters in geotechnical engineering, slopes, dams, tunnels, reservoirs, swimming pools, deep foundation pits, irrigation, and retaining walls.
5. Protection works with all kinds of fireproof coatings for steel structures.
6. Refractory items: building chimneys and various hot furnaces and repairs.
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5.5kw Economical Practical Cement Spraying Machine For Mine Tunnel Construction Images
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