Talking about the type and application range of grouting machine

1, double liquid grouting machine

Two-fluid grouting pumps are special equipment that uses pressure to grouting easy-cure materials into the rock or soil cavity. It plays the role of reducing leakage and consolidating the rock formation; the grouting machine is composed of an electric motor, a gear oil pump, an overflow valve, a hydraulic reversing valve block, an oil cylinder, a working cylinder, a mixer and a fuel tank, a radiator, an oil filter, and a Discharge valve and electric control box and other components. The hydraulic high-pressure injection pump is directly driven by the electric motor gear pump, the high-pressure oil output by the gear pump enters the hydraulic reversing valve block through the relief valve, and the hydraulic reversing valve block controls the hydraulic cylinder to reciprocate, because the cylinder is synchronized with the working cylinder. The movement and the stroke of the bore of the working cylinder are the same as those of the fuel tank. Therefore, the displacement and pressure of the working cylinder are basically similar to the fuel tank. Both ends of the working cylinder have a suction valve and a discharge valve, which can suck and discharge the same slurry. It is also possible to aspirate two different slurries separately.

Two-fluid grouting machine is mainly used in the construction of railway and highway tunnels, water conservancy and hydropower, subway tunnels, mine tunnels, military facilities, various underground construction and emergency rescue and other fields. The hydraulic high-pressure injection pump is mainly used for top pipe grouting, bentonite grouting, double liquid tunnel grouting, foundation treatment sinking, ground subsidence, post grouting (open grouting), high pressure grouting, secondary injection Pulp, basement waterproof plugging and other projects.

2, extrusion type grouting machine

Squeeze type grouting machine has a novel structure and is simple and compact. The main body adopts a cycloidal pin wheel speed reducer and a motor. The work is safe, reliable, convenient, easy to maintain, with high pressure and high efficiency. In detail, the squeeze injection pump consists of a roller, a wheel frame, a squeeze hose, a reset guide wheel, a pump body, a transmission, and the like. The rotating wheel carrier drives the roller to roll the rubber tube installed on the inner wall of the pump, squeezes and pressures the mortar in the tube, and the squeezed rubber tube is restored by its elasticity and the reset guide wheel, so that the rubber tube is partially Vacuum, inhale new mortar. When the grout pump conveys mortar, the mortar does not come in contact with metal parts. The squeeze injection pump has a simple structure, is easy to use, and can be adjusted in displacement. The shortcoming is that the extrusion hose has a short service life, a low delivery height, and a short distance.

The squeeze injection pump can not only pump high density, high viscosity materials such as mortar, pulp, pulp, etc., but also can be sprayed with air compressor and spray gun. The squeeze injection pump is ideal for grouting in mine tunnels, railway tunnels, hydropower projects, geotechnical slopes, underground engineering, subways and municipal construction, as well as blast furnace repair and building wall painting in iron and steel and chemical engineering. equipment.

3, screw type grouting machine

The spiral grouting machine, also called mortar pump, is a new grouting equipment developed by Taixin. The grouting machine adopts worm pressurization technology and has the characteristics of high pressure, high sand-dust ratio, high consistency, and large flow rate; the structure is simple and compact, and the reliability is high; the SJBI type self-contained stirring system can realize simultaneous grouting work; The range of grouting water-cement ratio is large, especially the thick slurry required for high concentration design; continuous grouting can be used to avoid excessive instantaneous pulsating pressure of the piston pump; after the grouting pressure reaches the design pressure, the pressure can be reversed With the air compressor and spray gun, the inner and outer walls of the bottom and overcoat can be sprayed.

Mortar pumps are widely used in pressure grouting projects such as road grouting, railways, tunnels, urban subways, hydropower stations, and underground caverns such as anchor grouting, backfill grouting, and consolidation grouting. It can be used in pressure grouting projects such as dams, slopes, and curtain grouting for the reinforcement of soft rock. It can also be used for the spraying and protection of interior and exterior walls and overcoats in urban construction projects. It is an ideal modern construction equipment for construction sites.

4, piston type grouting machine

In the process of reciprocating movement of the piston, piston type grouting pump, when the piston moves outwards, the outlet check door closes under the action of its own weight and pressure difference, and the inlet check door opens under the effect of differential pressure. Pump liquid into the pump chamber. When the piston opens inwards, the pressure in the pump chamber rises, closing the inlet check door, opening the outlet check valve and pushing the liquid into the outlet pipe. The mortar pump also has the characteristics of small volume, light weight, flexibility and convenience. It is widely used in grouting and grouting operations in metallurgy, national defense engineering, civil air defense engineering, mines, tunnels, chemical engineering, hydraulic engineering, power engineering and highway engineering as well as medium transportation.

Piston type grouting machine is used for vertical and horizontal transportation of mortar in construction projects; in the metallurgical and iron and steel sector, it is used for the maintenance of blast furnaces and other equipment; for grouting in national defense projects, civil defense projects, and mining and pit construction; in chemical industry The department is used to transport slurry materials (colorants, coatings), magnetic materials and other media; in farmland and water conservancy projects, it is used to reinforce dams. Sand digging is used to reinforce wells; in railway construction, it is used for grouting reinforcement of bridges and culverts; pre-stressed construction is used for mortar injection expansion; in power plants for conveying fly ash mortar; In the pavement maintenance, it is used for the pressure drop of the bottom of the cement concrete pavement.