The manual of universal soil feeder used in earthwork excavation and topsoil conveying project

Foreword:

The universal soil feeder is widely used in the excavation of large deep foundation pit, the construction and restoration of lake, the transportation of soil on the earthwork, especially the cleaning of underwater materials,  earthwork, water conservancy dredging engineering standing equipment .

 

Section 1 , Scope of application:

Suitable for the whole excavation process, from the excavation of flat 

ground to the formation of deep pits to the seepage of groundwater.

When local water seepage, there is no need to increase pumping and 

drainage operations, no need to build temporary replacement transport

 muck road, no need to build artificial work platform at the bottom of the pit.

 During construction, the working parameters such as length, span, 

depth, range and Angle can be adjusted arbitrarily according to the 

site conditions.

 

Working parameters:

●Transverse extension span: 10-1000m

●Depth of exvavation:0-200m

●Slope of foundation pit edge:0-90°

●100m efficiency: small 100 tons/h, medium 450 tons/h, large 1300tons/h

●50m efficiency: small 200 tons/h, medium 900 tons/h, large 2600 tons/h

Type Price

TYPE	PRICE US$	FORM	AFTER SERVICE
SFU-100	90000.00	Universal	N
SFU-200	180000.00	Universal	N
SFU-500	820000.00	Universal	N
SFU-1000	1540000.00	Universal	N
SFU-1500	26000000.00	Universal	N
SFU-2000	38000000.00	Universal	N

The feature of this construction machine is that when working alone, 

it is a single-machine dragline excavator. The pulley controlling the 

bucket cable can move up and down the lifting arm, thus increasing 

the working radius of the dragline excavator. When excavating as a 

dragline excavator, the radius of excavation can be up to 40 meters. 

Therefore, when there is no seepage of underground water in the foundation pit, 

a single machine is used to excavate and directly soil to the feeding mouth of 

the conveyor. It is characterized by simple operation, flexible steering, convenient 

movement, low cost and can be constructed at the bottom of the 

foundation pit (figure 1).

 Of course, if the construction scope is relatively large, it can also 

directly adopt the form of large-span all-in-one excavating 

machine (figure 2).

When underground water seepage occurs during excavation, 

adjust the position of the working cable pulley on the lifting arm, 

and at the same time set up the support frame supporting the 

guide rail ropeway on the opposite side of the excavation area,

 which can form a large span variable amplitude combined pull 

shovel excavation soil transfer system (figure 2).

 

This technology can select and configure different working terminals 

according to the geographic landform and the structural requirements

of the bottom of the foundation pit. It mainly has the following four 

functions: shovel, dig, grab and lift. The process of excavation, 

stripping, cutting, lifting, turning, dumping and soil loading can 

be adjusted and changed according to the design requirements of 

the bottom of the foundation pit.

(figure 3) shows the soil loading process under the condition of 

vertical foundation pit slope

 

When there is no water seepage or precipitation in the foundation pit, 

the feeding mouth of the conveyor can be installed in 

the corresponding position at the bottom of the foundation pit. 

The universal soil feeder can shorten the transportation distance 

and directly soil the bottom of the foundation pit to improve the 

working efficiency.

Figure 4 shows the slope with inclination at the bottom of the 

foundation pit directly feeding soil

Section 2 , Device config :

1.      The active part: it can be divided into the walking part and the 

working part. The walking part can be tracked or wheeled. 

The working part of boarding mainly includes hoisting, lifting arm, control room, etc. 

The boarding can be rotated 360 degrees (figure 1).The pulley that controls 

the working cable can be moved up and down on the boom (figure 2:1 -a).

2.      The driven machine part: from the motor installed on the other side across the construction area. It is used to fix the cableway and work cable across the construction area from the direction of the main engine. From the choice of motivation according to the different geological conditions and the construction strategy choice, can be used to move along the construction area edge of caterpillar engineering machinery modification, also can choose relatively stable portable device fixed pile, pile composite ground can also choose (FIG. 3, 7, 8, 9, 10).

3.      Stabilization system device: In order to ensure the stability of the host, the whole system is equipped with a stability protection device, with separate type and built-in type, which can buffer the impact and prevent the occurrence of tipping accidents.

4.      The winch cable: There are guide cableway cable and front and rear traction cable, respectively wound on the winch. Control the digging, lifting, falling, dumping of materials and other work terminals such as digger, shovel, grab and hook.

5.      The work terminal: Different working terminals are selected according to different materials and geological conditions of the site. Generally, there are digger, shovel, grab, hook and other working terminals (figure 5: working part).

6.      The loader hopper bucket: Select the size of the bucket according to the size of the bucket.Generally, the bucket is installed at the same time as the soil machine, transfer machine and belt conveyor (figure 2:3).

7.      The belt conveyor: According to the needs of the site can be installed in the front of the belt conveyor transfer machine, several transfer machine to the material to a belt conveyor.The number of belt conveyors equipped with a conveying line is determined according to the distance of transporting materials and the volume of earthwork (figure 2:4).

8.      The unloader: The final yard will soon be filled with earthwork, 

so the feeding position needs to be moved frequently. If the 

earthwork does not need to be moved to other places, only the 

position at the end of the belt conveyor needs to be changed. 

However, if it is necessary to continue moving the earth for a long distance, 

a mobile buffer unloader can be used, which has an organic hopper and 

can be loaded directly into the muck truck for removal.

Figure 5: four different working terminal configurations

Section 3, Construction method:

At the beginning of construction, excavate with single machine 

pull shovel, and every two single machine pull spatulas will 

provide material to the receiving mouth of the conveyor alternately. 

Arrange several single machine pull spatulas to excavate soil at

 the same time according to the size of the construction surface.

The number of soil feeder, transporter and long distance belt conveyor can be added according to the construction schedule (figure 1).

When there is seepage of underground water, the single-machine pull shovel can be changed into the long-span combined pull shovel system for long distance excavation.During the construction of the scheme, the active machine and the slave motor are respectively set up at both ends of the construction area, and the digger is controlled to excavate in the construction area. Therefore, no matter whether water seepage occurs at the bottom of the excavated area, it has no influence on the excavation work.Control the movement of the bucket to move the earth at nearly the same speed on land as under water.

Assuming that the diameter of the excavation range is 2000 meters, a one-time erection span of 2000 meters is adopted, extending from near to far, section by section, and finally reaching 2000 meters.

According to the engineering amount, multiple sets of combined system construction can be set up simultaneously (figure 2). Each set of system is equipped with a feeder, and every two or three receivers feed materials to a conveyor. The feeder concentrates the materials to supply the long-distance conveyor to the final material field.

 

Section 4, Attention matters:

1.      Before the construction, visually inspect and analyze the material sampling in the excavation area so as to determine the type and size of the bucket, bucket, grab, etc.

2.      Before the construction starts, it is necessary to investigate the hydrological situation of the construction area. If the groundwater level is high, it is possible to set up a large-span combined pull shovel to excavate the upper soil system for construction.

3.      During construction in the pit, the slope of the foundation pit should not be too steep to avoid affecting the movement of the main engine.

4.      The use of single machine pull shovel soil work, two people a machine.

5.      When using the long-span combined pull shovel to excavate the integrated system of upper soil, groups of four shall work together.

6.      The selection of the supporting device of the large span multi-purpose soil loading system is based on the principle of stability priority and convenient movement.

7.      Separate type counterweight in the choice, also in line with the principle of stability priority, convenient movement.

8.      The distance between the two mainframes should not affect the rotation of the lifting arm.

9.      When two single machines turn to dump materials, they must turn to dump materials from both sides of the receiving mouth and keep the time difference between one bucket digging and the other dumping.

 

Closing:

The program description is a general technical program description that is not specific to a specific project. When making a plan for a specific project, it is necessary to prepare the actual project construction plan using universal soil-topper on the premise of drawing, project objective plan or bidding document provided by party A.

 

Special tip: For the project plan wanders imitation construction, without our technical staff guidance, will occur major man-machine accident. There's a precedent!

 

Contact: Yukon BC mining group of Canada

mjlu9889@gmail.com