BIDIRECTIONAL GEOGRID PRODUCTS

SATURN1005024

 

BIDIRECTIONAL GEOGRID PRODUCTS

 

Specification and performance parameters of bidirectional geogrid products

 

Project Unit JH/gs15 -15 JH/gs20-20 JH/gs30-30 JH/gs4 0-40 JH/gs45-45 JH/gs50-50

width M 4.0,5.0,6.0

Longitudinal stretching per linear meter Yield strengthKN/M ≥ 15 20 30 40 45 50

Horizontal stretching per linear meter Yield strength KN/M ≥15 20 30 40 45 50

Longitudinal yield elongation %≤ 13

Lateral yield elongation %≤ 16

Tensile force at a longitudinal elongation of 2%KN/M ≥ 5 7 10.5 14 16 17.5

Tensile force at a transverse elongation of 2%KN/M ≥5 7 10.5 14 16 17.5

Tensile force at a longitudinal elongation of 5%KN/M ≥7 14 21 28 32 35

Tensile force at a transverse elongation of 5%KN/M ≥ 7 14 21 28 32 35

 

Biaxially stretched plastic geogrids are suitable for reinforcing various

embankments and roadbeds, slope protection, tunnel wall reinforcement, and

permanent bearing foundation reinforcement for large airports, parking lots, docks,

and freight yards.

1. Bidirectional geogrids are used to increase the bearing capacity of road foundations and

extend their service life.

2. Bidirectional geogrids are used to prevent road (ground) collapse or cracking, and to

maintain a beautiful and neatground.

3. Bidirectional geogrids are used for convenient construction, time-saving, labor-saving,

shortened construction period, and reduced maintenancecosts.

4. Bidirectional geogrids are used to prevent cracks in culverts.
5. Double directional geogrids are used to enhance soil slopes and prevent soil erosion.
6. Double directional geogrid is used to reduce the thickness of the cushion layer and save

costs.

7. Bidirectional geogrids are used to support the stability and greening environment of grass

planting mats on slopes.

After being treated with flame retardant and anti-static technology, a double

tensile and double anti grid network is formed into a complete structure through bidirectional

stretching. It is specifically used as a protective false roof in coal mines,

and can also be used as a support material for various tunnels such as anchor bolt

tunnels, support tunnels, and anchor spray tunnels. When using double resistance nets

for false roof in coal mines underground, it is necessary to use them in combination

with double layers or more.

1. The dual anti friction net used underground in coal mines is less prone to generating static

electricity. In the underground environment of coal mines, the average surface resistance of

plastic mesh is below 1 × 109 Ω.

2. The dual anti flame mesh used underground in coal mines has good flame retardant

performance. In an open flame environment, it only melts and does not burn, even if it burns

for no more than 10 seconds before extinguishing.

3. The use of dual resistance nets underground in coal mines facilitates coal washing. The

density of this plastic mesh is around 0.92, which is lower than the density of water. During

the coal washing process, the broken mesh floats on the water surface and is easy to rinse off.

4. The double anti corrosion net used underground in coal mine has strong corrosion

resistance and aging resistance.

 

5. The use of dual resistance nets underground in coal mines facilitates construction and

transportation. Plastic mesh is relatively soft and should not scratch workers during

construction. It also has the advantages of easy curling, bundling, cutting, and light weight,

making it easy to transport, carry, and construct underground.

 

2、JH-gs6000 Specific configuration of PP/PE plastic geogrid production line

1. 180/35 exhaust single screw extruder 1set

vertical stainless steel mixer 1 set

Loading method Spiral loading

Hopper structure Stainless steel

Silo volume

1000L

Drive power

280kw

Governor

ABB

Motor brand Siemens China

Screw diameter Φ 180mm

Length to diameter ratio

35:1

Screw barrel material 38CrMoAl quenched and tempered nitrided HV ≥ 750

Heating power 80kw (approximately)

The cooling method for the barrel

Water cooling at the inlet and air cooling on the body

Fan power 550w

Gearbox 450 Dedicated to hard tooth surfaces (FaDa or Jiangchi)

Gear material

20CrMoTi quenching and grinding treatment

Reducer brand

Redson

Exhaust method Natural exhaust method

Stacker 1 set

 

2. Hydraulic single plate screen changer 1 set

The method of screen replacement Single plate hydraulic

Drive power 3kw

System pressure 18Mpa (Max)

Mesh material 38CrMoAl

Heating method Siemens temperature module

pressure in front of the network Digital melt pressure display

 

3. Flat extrusion mold 1 set(External

blocking type, unilateral blocking 0-200mm)

Material Forged mold steel(50CrNiMo)

Width 2300mm

Heating method Heating rod or heating plate

Heating power 60KW

Adjustable precision of sheet thickness 0.1mm(Adjustable outlet clearance with

replaceable mold lips)

 

 

4. Three roll calender 1 set(equipped with a three roll mold temperature machine)

Roller diameter 800mm

Cooling method water cooling

Cooling channel structure Both ends in and out, multiple ends with

enlarged spiral grooves

Roller material 45 # carbon steel

Surface treatment Chromium polishing mirror treatment

Surface heat treatment hardness of roller HRC≥55

Surface roughness of roller Ra0.025

Effective width 2300mm

Roller gap adjustment Electric adjustment

Pressure roller linear speed 0-4.5m／min

Adjustment range 0-50mm

Plate thickness 1-12mm

Gap display method Digital display dial gauge

Safety protection safety rope switch

Rack structure Steel plate welding and aging treatment

Mobile method Electric mobility

Mobile travel ≥800mm

Mobile power 1.1kw

Vertical cutting method blade cutting

Adjustment method Mechanical adjustment

 

5. traction cooling device 1 set

variable frequency governor 1 set

Power 7.5KW

traction rollers 1 set

Roller material One high-quality structural steel and one

rubber roller

Roller diameter 320mm

Axis diameter ≥ 90mm

Edge cutting system 1 set

cutting method hydraulic blade cutting

Cooling method water cooling

Cooling box material stainless steel water tank

 

6.Automatic edge cutting devices 2 set

7.Servo intelligent control stepper punching

device 1set

Punch brand Jiangsu Yangli or equivalent brand

Punch press form Double point high-speed punch press

Stamping frequency 65-110 times/minute

Stamping mold material High quality mold steel

Number of stamping molds 1 set

Stamping mold specifications Customers can choose one set themselves

Product mesh specifications undetermined

Stamping pressure 3150KN

Feeding method Servo feeding

Feeding roller diameter ≥300mm

Control method Huichuan or equivalent brand PLC and

control system

 

 

8.Feeding and pressing device 1 set

Compression roller Roller 5 rolls

Material quality Surface plating treatment of seamless

steel pipes

Drive power 15KW

Speed regulation method Frequency control

9. Longitudinal stretching device 1 set

Heating box 1 set

Temperature control zone 4

Arrangement method multi roll arrangemen

Number of rollers 18 rollers

Traction stretching method Hot roller arrangement

Effective width of traction and stretching 2200mm

Length (approximately) 6m

Heating method Electric or natural gas direct

combustion,thermal oil circulation

heating

Rotating joint High temperature and high heat

resistance

Drive power 11KW、45KW

Speed regulation method ABB variable frequency speed regulation

The lubrication device Convenient lubrication and grease

injection

10. Longitudinal auxiliary stretching device (including a set of traction) 1set

Pressing roller 5 rolls

Material Chromium plating treatment on the

surface of seamless steel pipes

Drive power 30KW

Speed regulation method ABB variable frequency speed regulation

Traction drive power 3kw

Traction roller form rubber roller

11. Lateralstretchingdevice 1set

11.1 Main technical parameters

Running speed: 0-16m/min (50HZ), running the chain smoothly without shaking.

Lateral tension: ≥ 1800N/per clip

Nominal amplitude: 4000-6300mm

 

Plate thickness: 2-12mm

Maximum weight of the sheet after stretching: 700g/㎡

Total length of oven: 32.5 meters, (2.5 meters/section x 13 sections)

Heating method: Natural gas direct combustion, 200000 kcal burner, 13 units. The

highest temperature is 220 ℃, and the heating section is zone 13.

Stretching width: 4000-6300mm

Machine working face height: 1225mm.

Amplitude modulation method: Long axis segmented transmission, with separate

adjustable clutches added at each track section.

The preheating section, stretching section, and straight section can be adjusted

separately and can be uniformly adjusted. There are two adjustment methods: manual

and electric. Plate clamping method: clamp with flat blade and automatic locking

function. Non adjustable thickness fixture.

Chain and operation mode: pure rolling chain with rolling bearings, horizontal

operation, chain pitch of 63.5mm, domestic famous brand bearings, oil filling

inside the bearings and high-temperature grease added to the chain.

Circulating fan: 7.5KW per unit in the preheating section, 11kW per unit in the

stretching section, and 15kW per unit in the straight section.

Temperature control: The electric valve automatically adjusts and controls the

amount of natural gas intake. Temperature control accuracy ± 2 ℃.

Insulation material for the box: aluminum silicate insulation cotton is used, and the

sealing material is silicone rubber sealing strip

11.2 Components of the transverse stretching device

11.2.1 Import structural device section:

Composed of an introduction roller, an upper pressure roller, and a positioning

guide component. The introduction roller is composed of three rollers arranged

side by side and controlled by a magnetic powder brake. The upper pressure

roller is composed of three passive rollers, which are controlled by a cylinder to

raise and lower pressure. The positioning guide component consists of six guide

wheels. The guide wheel guides the board horizontally into the upper and lower

pressure rollers. The guide wheel can be manually adjusted by the handle to

adjust the left and right positions, with an adjustment amount of 200mm on one

side.

11.2.2 Front structure device part:

The front of the car is equipped with an amplitude adjustment device, which can

be adjusted simultaneously or separately. The manual adjustment device must

have a belt tensioning device. The clamping device adopts a design structure of

springs or spring plates to ensure sufficient clamping force to avoid damaging

the clamp, making the clamping accurate and reasonable. Set up an automatic

lubrication station for the front of the vehicle. The opening and closing clamps

have a reasonable structure and are rolled to avoid damage caused by wear or

impact on the clamps.

11.2.3 Track structure part:

The track is made of ductile iron structure, with a length of about 2.5 meters per

section. The straight section is fixedly connected to each other, and the

transition between the straight section and the inclined section is clamped. The

clamped section can swing at a certain angle relative to each other. The shape

and structure requirements of the track are: the first 20 meters are the preheating

zone. The middle 10 meters are the stretching area, and the last 3 meters are the

shaping area. The amplitude range of the preheating zone is 1000-1900mm, and

after passing through the stretching zone, the amplitude range of the shaping

zone is adjustable from 4000-6300mm. The stretching zone can vary with the

width of the preheating zone and the shaping zone. Width adjustment part: can

be manually or electrically driven, transmitted through the top gearbox of the

oven to achieve double-sided synchronous adjustment. The track working

surface is lined with wear-resistant steel plates.

11.2.4 Chain clip structure:

The structure operates horizontally, with a chain pitch of 63.5mm and a rolling

bearing diameter of 47mm. The clamp body is precision machined by

board production lines, PP honeycomb board production lines, and decoupling pad production lines.

precision casting machinery. The lower clamp of the clip is a flat tooth shape

with a file, which increases friction and tension. The upper clamp is a straight

serrated shape with a self-locking spring. The clips and cutting edges should

meet the usage requirements of different thicknesses of plates (1.5-10mm is

suitable for different specifications of products). The material of the clip is

ZG45, ensuring good rigidity, impact resistance, wear resistance, and

sufficient rigidity and easy disassembly of the roller.

11.2.5 Chain transmission structure:

The chain transmission adopts a main motor with a reducer distributed to the

reduction boxes on both sides through a spline shaft, and then drives the left and

right chains separately. The main motor is a Siemens brand motor with variable

frequency speed control. The tension of the chain adopts hydraulic tensioning

method, with overload automatic shutdown alarm to ensure safety and reliability.

The chain track and clip are designed and manufactured with a tensile strength of

18000N.

11.2.6 Oven structure:

The entire lifting section of the oven consists of 26 sets of motors, with a

cumulative power of approximately 230KW. There are a total of 6 sets of button

controls, each set of buttons controls the motor of this group, and achieves

sequential start of each motor with delay (time relay control) to avoid high

current impact caused by simultaneous start. The effective length of the oven is

32.5 meters, with one section every 2.5 meters. The width of the oven is divided

into three levels in a vertical step shape. The effective width of the initial

preheating zone is guaranteed to be 1900mm, and the effective width of the final

shaping zone is guaranteed to be 6300mm, with a certain amplitude modulation

width. Each section is equipped with two sets of circulating fans, with each set of

7.5KW in the preheating section, 11kW in the stretching section, and 15kW in

the straight section. Each burner can control its own temperature.

11.2.7 Rear part of the car

It consists of a base, left and right gear boxes, crossbeams, main drive motors

(with a power of 45kw) and transmission devices, main drive reduction boxes,

expansion motors, and clamp opening devices (with the same requirements as

the front of the vehicle).

11.2.8 Edge cutting device

The edge cutting device is installed on the upper part of the rear track of the car

and adopts a blade type cutting. The edge cutting knife is installed on the track

and changes with the width of the track. The upper, lower, left, and right

positions of the edge cutting knife can be adjusted by the screw handwheel

mechanism.

 

11.2.9 Horizontal stretching mainly involves electrical components:

The temperature control system adopts Siemens temperature module products with

an accuracy of ± 1 ℃.

The frequency converter adopts ABB products, and the main driving motor adopts

the Chinese Siemens brand.

The oven chain drive and traction roller drive adopt variable frequency stepless

speed regulation, and the drag can be adjusted proportionally or separately; The

drag speed is also proportional to the drag speed of other devices (frequency

converters).

The operation box should be equipped with a communication buzzer, an emergency

stop button, and a speed adjustment button (knob).

Louver vents are installed on both sides of the electrical control cabinet, and two

small axial fans are installed at corresponding positions for heat dissipation. Set

up a control console at the rear of the car to control the winding and other

operations at the rear of the car.

The electronic control system and execution part of the entire machine meet

national level specifications and standards. The main low-voltage electrical

equipment adopts international brands.