Conveyor Belt

Durable ore conveyor belt

Durable ore conveyor belt
Liu Jinwen
(Design Institute of Rubber Industry, Qingdao Rubber Machinery experimental plant, Changle, Shandong Changle 262.4 thousand)
Abstract: The flat-type conveyor for general improvements, development and durable ore conveyor belt. Flat conveyor belt in the general coverage of glue added to pretreated polyester
Short fibers in the body is covered with a flat base layer to set a reasonable distance of the V-shaped rubber non-slip edges, which can effectively improve the life of conveyor belt when the conveyor ore. The system to do
Durable ore conveyor belt system do not need to re-plate vulcanizing machine hot plate, just the next hot-plate to install template vulcanization transition can be realized once the whole conveyor belt vulcanization.
Keywords: conveyor belt; non-slip edges; polyester staple fiber; vulcanization transition template; life
Key words: TQ336.2 Document: B Article ID :1000-890X (2005) 02-0092-03
Common conveyer belt used to transport materials in general, the normal situation
Service life of up to 8000 ~ 10000h; used for conveying ore
When, in the maintenance of good cases, only 5000 ~ 7000h.
Conveyor belt life is short and inefficient transportation constraints Enterprise Economy
Efficiency improvement of important factors. Common conveyer belt used to transport ore
When the main factors affecting their life is the ore of the wear and
Their own system for quality.
This is achieved through the ordinary flat-type conveyor belt structure, equipped with rubber
Side and production process improvements, development and durable ore conveyor belt.
1 Structure
Improve the conveyor belt structure is aimed at alleviating transport material on the conveyor
With the wear and improve transportation efficiency. Practical measures for improving
In the body is covered with a flat base layer to set a reasonable distance between V-shaped
Rubber non-slip edge, non-slip edge shape as shown in Figure 1, the relevant dimensions such as the
Shown in Table 1.
With a body structure improvements, through the use of evidence carried by conveyor belt
Materials are not sliding, thereby reducing the carriage of the wear material on the belt body, with body
Extend the service life of 10% ~ 15%. In addition, as V-shaped rubber   Nylon Conveyor Belt
The existence of non-slip rubber edges, make the largest conveyor belt conveyor angle up to
35o, thereby enhancing the delivery height, reduced equipment footprint.
2 formula
2.1 The flat body is covered with a plastic base
Improve the body is covered with a flat base adhesive formulations focused on enhancing the adhesive
B / mmα / (o) R / mm e / mm r / mm t / mm h / mm φ / (o)
500.40601 million ~ 206,225 ~ 40 12 ~ 20 6 ~ 7
650.40801 million ~ 208,125 ~ 40 12 ~ 20 6 ~ 7
8003010010 ~ 2010025 ~ 40 12 ~ 20 6 ~ 7
Material tensile strength and wear resistance. Proven, in the rubber
By adding appropriate amount of the increased infiltration of polyester staple fiber can be pre -
Significantly increased the tensile strength of rubber and wear resistance. After several test
Testing to determine body is covered with a flat base formula for the plastic: SBR 50, BR
30, NR 20, active agent 8, plasticizers 25, reinforcing agent
40, polyester staple fiber 30, antioxidant 2, paraffin 1, sulfur
2.5, Accelerator NOBS 1.5. Vulcanizate performance (curing conditions
To 150 ℃ × 20min) is as follows: Shore A hardness of 61 degrees,
Tensile strength of 21MPa, pull off 600% elongation, Akron
WEAR 0.40cm3.
2.2 The non-slip rubber edge
An appropriate increase in non-slip rubber edges of the hardness, tensile strength and resistance to
Conveyor belt grinding performance in improving service life are very favorable. In rubber
By adding appropriate amount of the increased infiltration pretreatment of polyester staple fiber
The effect of rubber material to improve the performance significantly. After repeated testing to determine if anti -
Prism slip rubber formula for: SBR 70, NR 30, a high styrene tree
Fat 5, active agent 8, plasticizers 15, super-abrasion furnace black
30, filler 20, polyester staple fiber 36, Antioxidant BLE /
RD 2, sulfur 2, Accelerator DM / CZ 1.6. Vulcanizate
Performance (curing condition of 150 ℃ × 20min) is as follows: Shore A
Hardness of 76 degrees, the tensile strength of 23MPa, elongation at break in
500%, Akron WEAR 0.25cm3.
3 Production Process
The multi-project analysis and comparison to finalize the system do not re-ping
Plate vulcanizing machine hot plate, using the flat vulcanizing machine before installing sulfide
Watanabe template (shown in Figure 2) means to achieve the flat body and rubber base-band
Vulcanized non-slip edge the whole time, not only improve the production efficiency, but also large
Reduce the cost of major equipment modification. Curing the transition templates installed on the flat
Under the hot-plate curing press, and with the next hot-plate fixed. Curing the transition mode
The material should be flat plate vulcanizing machine the same as under the hot plate to avoid heat
The thermal expansion causes the connection to different levels of damage to various parts of the template size of
Should work with non-slip edges of peace consistent with the baseband body.
Durable ore conveyor belt production process shown in Figure 3.
In the durable ore conveyor belt manufacturing process, to ensure that the rubber
Anti-slip edges with solid body with flat base-band using the following operation methods:
(1) a good non-slip edges to suppress the transition into curing molding groove template
Inside; (2) coated with special adhesive anti-slip edges; (3) Paste and anti -
Slip edge shape, a special film of the same size; (4) in the film coating
Follow-up special adhesive; (5) Subject to the flat base-band after the body of the pre-done non-slip edges
Fit from top to bottom hot plate closure vulcanization. Non-slip edges and the use of this technology
Flat base with the body adhesive strength to reach 8kN · m-1.  Cold Resistant Conveyor Belt