Product Description
Application
It is used for multi-pipe rotojet construction within the diameter of 142 of drill pipe. It can realize the operating requirements of self-rotation, high and low speed, traveling, rotojet and swing jet.
Introduction
HFDG-150 walking all rotary spray rig is on the basis of the traditional technology of high-pressure rotary jet grouting and adopted a unique porous pipe and the front pressure monitoring devices, realize the hole force in slurry and ground pressure monitoring, and by adjusting the forced pulp quantity to control internal pressure, significantly reduce the disturbance of the surrounding foundation;Its technological characteristics are horizontal, inclined, vertical and arbitrary Angle construction, large pile diameter and good pile quality.
Features
Suitable for multi-pipe rotojet construction within the diameter of 142 drill pipe;It can display mud volume, air volume, ground pressure, rotary speed, lifting speed, lifting distance, stepping distance, swing spray Angle, etc.Printing part: it can print instantaneous mud amount, accumulated mud amount, instantaneous grouting pressure, lifting speed, pressure inside the hole bottom, air pressure, air flow, water pressure of cutting hole and water flow of cutting hole.
Technical Data
| Parameters and Names |
HFDG-150B |
HFDG-150L |
| Chassis form |
Tramp walk |
Track 360° rotary walk |
| Pillar form |
stationary |
0-90°Put a spray |
| Power head form |
Through hole 150 mm hydraulic chuck |
Through hole 150 mm hydraulic chuck |
| Power head stroke |
2m |
1.7m |
| Speed |
Low speed 0-24r/min
High speed 0-48r/min |
Low speed 0-24r/min
High speed 0-48r/min |
| Promote force |
10T |
10 T |
| Rotary torque |
12 Kn.m |
14 Kn.m |
| Maximum lifting speed |
4m/min |
6m/min |
| Construction parameter table of DG multi-pipe rotary jet grouting method |
| Number |
Content |
Parameter |
Number |
Content |
Parameter |
| 1 |
Pile diameter |
2300mm |
10 |
Pile bottom elevation |
-13.5 |
| 2 |
Water cement ratio |
1: 1-1.5 |
11 |
Cutting water pressure |
0-20Mpa |
| 3 |
Mud pressure |
40Mpa |
12 |
Control of pile Angle error |
≤1/100 |
| 4 |
Mud flow |
90-130L/min |
13 |
Interval trip |
25mm |
| 5 |
Main air pressure |
0.7-1.05Mpa |
14 |
Step lift time |
45s |
| 6 |
Main air flow |
1.0-2.0Nm³/min |
15 |
Speed |
3-4rpm |
| 7 |
Inverted suction pressure |
0-20Mpa |
16 |
Pressure in the ground |
1.0.-1.8 coefficient |
| 8 |
Reverse suction flow |
0-60L/min |
17 |
Cement dosage |
40% |
| 9 |
Column length |
15m |
18 |
Pile top elevation |
1.5 |
Working Site
Company Introduction
Hanfa Group established in 1998 is a key enterprise in the industry of geological exploration and water well field, with the ability to research,manufacture and market. Now, the Group pursues high standard manufacturing and qualified products. It has more than 20 species such as water well drilling rig, core drilling rig, engineering drilling rig, DTH drilling rig,
horizontaldirectional drilling rig, etc. These machines are mainly used in geological prospecting, exploration of railway and highway engineering, mining, SPT, water well, geothermal well etc. Some of them won the Scientific and Technical Advance Prize or the National Scientific Research Achievement Prize. All the products have passed the quality system certification of ISO9001:2000 and are national inspection-free products.
1. More than 20 years of experience
The factory is located in Henan Province, China. We are very welcome to visit our factory. If
you need it, we will arrange a pick-up.
2.Top production team
The transportation and packaging will be packaged in international standards. If you have special packaging requirements, we will give you the most suitable solution.
3.Our Service
- New machine provides technical trair.
- Once anything goes wrong with the machine by normal using, our technical person must appear at the first time no matter where you are.
- When the machine should be maintained, you will receive the reminding from us.
- According to different geological conditions, we will recommend different construction plans for you
- Remind you which are wearing parts, so you can prepare enough.
- 24 hours respond to your quality problem.
FAQ
1, Are you trading company or manufacturer?
We are professional manufacturer, and our factory mainly produce water well drilling rig, core drilling rig, DTH drilling rig, piling rig, etc. Our products have been exported to more than 50 countries of Asia, South America, Africa, and get a good reputation in the world.
2, Are your products qualified?
Yes, our products all have gained ISO certificate,and we have specialized quality inspection department for checking every machine before leaving our factory.
3, How about your machine quality?
All of our machines hold the ISO, QC and TUV certificate, and each set of machine must pass a great number of strict testing in order to offer the best quality to our customers.
4, Do you have after service?
Yes, we have special service team which will offer you professional guidance. If you need, we can send our engineer to your worksite and provid the training for your staff.
5, What about the qaulity warranty?
We offer one-year quality warranty for machines' main body.
6, How long can you deliver the machine?
Generally, we can deliver the machine in 7 days.
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