阳江附近想过夜电话联系

Guosheng machinery > Product Center > Mining screening and conveying equipment >
 Asphalt vibrating screen

Asphalt vibrating screen

Hot sale

[feed size]: ≤50mm

[production capacity]: ≦300t/h

[application scope]: Asphalt vibrating screen is used for grading and screening of stone in asphalt mixing plant

[product introduction]: Asphalt vibrating screen is also called special vibrating screen for asphalt mixing station. It is driven by vibration motor, so there is no need to maintain equipment during use. The screen is made of high strength steel, which is strong and wear-resistant. The screen body is sealed as a whole, with large grading granularity and low energy consumption. It is an efficient screening equipment.

Sales Hotline: 0373-5419909

Product introduction

Asphalt vibrating screen is also called special vibrating screen for asphalt mixing station. It is mainly used for screening multi graded sand and stone materials, and it is specially used for grading screening of stone materials in asphalt mixing station. According to the special physical characteristics of asphalt, the equipment is a new type of energy-saving, environmental protection and portable screening equipment The larger advantage is the use of vibration motor drive, the use of basic maintenance equipment. The screen is made of high strength steel, which is strong and wear-resistant. The screen body is sealed as a whole, with large grading granularity and low energy consumption. It is an efficient screening equipment.
 
 Asphalt vibrating screen

Advantages and disadvantages

advantage
1. Two vibrating motors are used to drive the vibrating screen, which is environmentally friendly and energy-saving, and basically maintenance free
2. The screen is made of high manganese steel, which is firm and wear-resistant
3. The screen body is sealed as a whole, saving energy and high efficiency
shortcoming
1. The eccentric shaft mounted motor is used to drive the vibrating screen, which has high energy consumption and high noise.
2. The vibrating screen is difficult to maintain and has poor stability.
 
 Asphalt screening equipment

Solve the tripping phenomenon
 
When the equipment is no-load, it will trip when it is started again. If the new thermal relay is replaced, the fault still exists. Then it is necessary to check the contactor, motor phase to phase resistance, grounding resistance, phase to phase voltage, if there is still no problem Then the transmission belt can be removed and the vibrating screen can be started. The ammeter indicates the normal value (10a), and there is no problem in the no-load operation for 30min, indicating that the fault is not in the electrical part. After reassembling the transmission belt, restart the vibrating screen and find that the eccentric block jumps violently Yes.
Solution: remove the eccentric block, start the vibrating screen, and the ammeter shows 15A; fix the magnetic meter base on the vibrating screen box plate, and check the radial runout of the shaft end with a scribe needle. The measured radial runout is 3.5mm, and the ovality of bearing inner diameter is 0.32mm. Replace the bearing of vibrating screen Install the eccentric block and restart the vibrating screen. If the ammeter indicates the normal value (10a), there will be no trip.
 
 Vibrating screen of asphalt mixing plant

 Asphalt mixing plant equipment

working principle

The asphalt vibrating screen adopts the driving mode of two vibrating motors in reverse self synchronous operation. The vibration track is linear, and the designed amplitude value is generally within the range of 5-7mm. The whole screening surface is composed of two sections of manganese steel wire woven mesh. The screen is curved and placed at the joint of the head and tail The sample can make the material classification selection, and improve the screening efficiency of the material. In addition, one end of the screen is fixed by a positioning pin, and the other end is tensioned and tightened by a hook plate. Its unique screen fixing form makes the screen replacement very convenient and quick. In addition, a heat preservation layer is designed on the outside of the screen, which is effective It can reduce the heat loss of materials in the screening process.
 
 Asphalt concrete recycling material screening equipment

technical parameter

model Screening capacity Motor model Voltage power
kw
Vibration times
Times / min
amplitude
mm
Exciting force
KN
Grain size mm T/H
ZXS-0510 ≤30 seven YZO-3-6

380W

0.25×2 nine hundred and sixty 2-4 3×2
ZXS-0612 ≤30 eight YZO-3-6 0.25×2 nine hundred and sixty 2-4 3×2
ZXS-0520 ≤50 twelve YZO-3-6 0.25×2 nine hundred and sixty 2-4 3×2
ZXS-0816 ≤50 fourteen YZO-5-6 0.37×2 nine hundred and sixty 2-4 5×2
ZXS-0820 ≤50 fifteen YZO-10-6 0.75×2 nine hundred and sixty 2-4 10×2
ZXS-1020 ≤60 twenty YZO-15-6 1.1×2 nine hundred and sixty 2-4 15×2
ZXS-1224 ≤60 twenty-four YZO-20-6 1.5×2 nine hundred and sixty 3-5 20×2
ZXS-1030 ≤60 thirty YZO-20-6 1.5×2 nine hundred and sixty 3-5 20×2
ZXS-1530 ≤60 thirty-eight YZO-30-6 2.2×2 nine hundred and sixty 3-5 30×2

 Asphalt mixture screening equipment

Screening factor

1. Physical properties of screened materials
Physical properties include particle size composition, humidity, mud content and particle shape. When the content of fine particles in the sieve is large. Generally speaking, the screening efficiency will be reduced when the material humidity is high. However, the larger the mesh size, the smaller the influence of moisture, Therefore, for wet materials with large moisture content, in order to improve the screening process, the method of enlarging the mesh size or wet screening can be adopted.
2. The influence of screen surface properties and structural parameters
For asphalt, the sieve productivity and screening efficiency are determined by the mesh size. The productivity depends on the width of screen surface, and the productivity is high. The screening efficiency depends on the length of screen surface, which is high in screening efficiency. Generally, the aspect ratio is 2. Effective sieve area (i.e. mesh area vs. total The larger the ratio of screen area, the higher the unit area productivity and screening efficiency. The larger the mesh size is, the higher the productivity per unit sieve surface is and the higher the screening efficiency is.
3. Influence of production conditions
When the load of the sieve is large, the screening efficiency is low. To a large extent, the penetration rate of a sieve depends on the size of the mesh and the total screening efficiency; the larger the mesh size is, the lower the screening efficiency is, the higher the productivity is. Feed uniformity is of great significance to the screening process. The inclination angle of the sieve should be appropriate, It is generally determined by experiment. The second is the amplitude and vibration number of the sieve, which is related to the structural properties of the sieve. In a certain range, increasing the vibration can improve the screening index.
 
 Asphalt aggregate screen

Common faults

1. The production is not stable, resulting in low production efficiency of asphalt vibrating screen
The ratio is improper. The asphalt concrete mix proportion is the target mix proportion and the production mix proportion. Among them, the target mix proportion controls the conveying proportion of cold aggregate, and the production mix proportion is the mixing proportion of all kinds of sand and stone in the finished asphalt concrete materials specified in the design. The production mix proportion is determined by experiment The site grading standard of finished asphalt concrete is directly determined by the determination of laboratory. The target mix proportion is set to further guarantee the production mix proportion, which can be adjusted appropriately according to the actual situation in production. When the target mix proportion or production mix proportion is not suitable, the stone stored in each measurement of asphalt mixing station is out of proportion, some materials such as overflow and others can not be weighed in time, and the mixing cylinder idles, which reduces the output.
2. The material gradation is unqualified
If the feed is not in the proper range, it will not only produce a lot of "waste", but also affect the output. When the moisture content in sand and stone is too high, the drying capacity will decrease
The quantity of sand and stone materials provided to the metering bin to reach the set temperature is less, thus reducing the output.
3. The temperature of asphalt discharge is unstable
Too high or too low temperature of asphalt will affect the production, resulting in poor quality of finished asphalt or a large number of "waste" on site. This requires that in the production process of asphalt mixing plant, relevant personnel must carefully observe, frequently measure and have a high sense of quality responsibility.
4. Heavy dust pollutes the construction environment
In the construction, some asphalt mixing plant site is smoky, which not only does harm to the health of the staff, but also pollutes the environment. The main reasons are as follows: the content of mud and dust in sand and stone is too large, which exceeds the standard seriously, and the secondary dust removal system fails.
 Asphalt screening device


 
 

Customer case

  Heavy duty motor dzsf high efficiency vibrating screen
Heavy duty motor dzsf high efficiency vibrating screen

Processing materials:

throughput:

Equipment configuration: One dzsf1850-3p vibrating screen and three TD75 belt conveyors

View details
 Herringbone nylon antiskid belt conveyor
Herringbone nylon antiskid belt conveyor

Processing materials: resin

throughput: 15t/h

Equipment configuration: Six herringbone nylon antiskid belt conveyor

View details

Recommended products



Xinxiang Guosheng Machinery Equipment Co., Ltd Yu ICP Bei 14028944-2 Address: west exit of Xinxiang Changji Expressway

Online consultation
Ask for a quotation
Sales Hotline

Sales Hotline: 13569819530