3000t/H Capacity Stockyard Stacker And Reclaimer For Coal Fired Power Plant
Brand Name:SSI-HDCZ
Certification:manufacture certificate
Model Number:Customized
Minimum Order Quantity:1
Delivery Time:6 months after receipt of advance payment
Payment Terms:L/C, D/A, D/P, T/T, Western Union, MoneyGram
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Shanghai Shanghai China
Address:
C Building, 888, Huanhu West Second Road, Lingang New Area, China (Shanghai) Free Trade Experimental Zone
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Product Details
800t/h capacity stockyard stacker and reclaimer for coal fired power plant
Circular gantry type scraper stacker and reclaimer is mainly used in building materials, coal, metallurgy, electric power, port and other industries, and is mostly used to stack limestone or coal and other bulk materials. The cantilever of the stacker is equipped with a belt conveyor, which passes through the steel structure grid roof of the circular stockyard from the belt conveyor on the trestle, and the input materials complete the ring conical stacking through the belt conveyor on the cantilever of the stacker; The reclaimer completes the reclaiming work via three linkinge processes: traveling system, luffing system and scraper system. The scraper reclaimer scrapes the materials into the conical hopper under the central column along the slope of the pile, and outputs the materials through the vibrating feeder and underground belt conveyor.
Feature
| product | Stacker and Reclaimer |
| painting | Jotun |
| color | red |
| capacity | 800 t/h |
| character | heavy duty |
| advantage | robust design |
| benefit | low maintenance |
| material handling | coal or limestone |
Main components of circular stacker and reclaimer
1. Stacking steel structure, cantilever belt conveyor
The cantilever stacker takes the central column as the center, one end is the belt conveyor with cantilever steel structure, and the other end is the counterweight box. The middle stacking slewing part is connected with the central column by slewing bearing, and the stacker can rotate by meshing the pinion on the slewing driver with the gear on the central column. The materials entering the circular stockyard are unloaded at the head of the cantilever belt conveyor and directly stacked to the stockyard. The stacker rotates at a certain angle for slope stacking until it is stacked into an annular pile.
There are two main structural types of cantilever stacker, cantilever fixed type and cantilever luffing type.
Comparison of the two types of stacker :
(1)The advantages of the fixed stacker are simple structure and low cost. The disadvantage is that when the lower part of the stacker is not stacked or the material pile is low, the difference is huge, and the dust in the stockyard is more serious (even with spray system).
(2)The luffing stacker using the hydraulic cylinder to raise or lower the cantilever . Its advantage is cantilever can raise up and down according to the stacking height to reduce the material drop and avoid dust flying. As well, it can reduce the height of the central column and reduce the cost. The disadvantage is that the structure is more complex.
2.King column and slewing mechanism of circular stacker and reclaimer
(1) The king column of the stacker reclaimer is located in the
center of the circular stockyard. It is an important component of
the stacker reclaimer. It not only bears the load of the main
components and the input trestle, but also is the installation
center of the components. Therefore, its manufacturing and
installation process requirements are very high. It is made of
steel plate rolled into a cylindrical shape and welded and
assembled. The utility model is provided with a stacking steel
structure, a rolling bearing for the stacking rotary part and a
cable drag connecting various equipment components
(2)The top of the king column is the stacking rotary part, the
upper part of which is connected with the belt conveyor trestle
entering the circular stockyard through the rotary bearing and
serves as a support point for the trestle load, and the lower part
is connected with the middle column through the rotary bearing.
(3)In order to enable the slewing bearing device to bear large
vertical force, horizontal force and overturning moment, the
slewing bearing support type is adopted. The rotary bearing is
protected by a dust cover. Its structure can adapt to the harsh
working environment and has the functions of dust prevention, water
immersion prevention, refueling, cleaning and maintenance.
3.Gantry stacker
The gantry scraper reclaimer is mainly composed of gantry,
traveling mechanism, reclaiming luffing mechanism and scraper
reclaimer. The gantry is the main component of the rotation,
luffing and load support of the scraper reclaimer. The scraper
reclaimer is set under the gantry. The luffing mechanism adopts
mechanical winch type, and one end of the gantry is connected with
the central column by roller bearing, The other end is supported on
the circular track on the upper part of the stockyard retaining
wall, and the rotation of the reclaimer is driven by the traveling
wheel on the circular track. The gantry reclaimer has a robust
structure, and most of the weight of the gantry is borne by the
retaining wall, which significantly improves the stress state of
the central column and makes the operation more reliable .
The traveling mechanism is composed of driving wheel group,
traveling electrical detection and control system and lubrication
system. Considering the requirements of two-way movement of the
swing gantry under the most unfavorable conditions, two traveling
wheels are used as the driving wheels. The wheel set is
mechanically driven by variable frequency speed regulation.
Stepless speed regulation of working travel speed and non working
travel speed (in order to ensure the normal and safe operation of
circular stacker reclaimer, set slow and fast speeds respectively
according to the on-site operation conditions, i.e. working travel
speed and non working travel speed). In order to ensure that the
stress of the gantry is reasonable and the wheel pressure of each
wheel group under the gantry is the same, the gantry is hinged with
the two wheel groups, and each hinge point adopts through shaft
type. In addition, the joint bearing is used at the connection
between the gantry and the walking structure to ensure that the
gantry can automatically adapt to the change of track. The
lubrication of each supporting bearing and hinge shaft of the
traveling mechanism adopts grease centralized lubrication.
4.Reclaimer luffing mechanism:
The luffing mechanism is composed of driving device, drum assembly,
double steel wire rope and pitching electrical detection and
control system. The luffing operation of scraper reclaimer is
completed through the pitching mechanism, so as to achieve the
purpose of layered reclaiming.
The luffing mechanism using double steel wire rope single winding,
and the balance mechanism is adopted at the intersection of the two
steel wire ropes to ensure that the stress of the left and right
steel wire ropes is balanced and the work is safer.
The driving device of the luffing mechanism is mechanically driven
by frequency conversion and speed regulation to accurately control
the amplitude variation, so as to control the change of the
reclaiming amount. In order to ensure the safety and accurate and
reliable positioning of the pitching mechanism, the driving device
adopts double braking system
3000t/H Capacity Stockyard Stacker And Reclaimer For Coal Fired Power Plant
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