2015年11月27日星期五

The Application and Arrangement of Mechanized Silo

There are two kinds of Mechanized silo for bulk material: agricultural silo and industrial silo. Agricultural silo is used to store food, feed and other granular or powdered materials. While industrial silo is to store coke, cement, salt, sugar and other bulk materials.
The discharging hopper is always installed at the bottom of the mechanized silo, the upstream is equipped with conveying equipment. When loading materials, the bulk materials will be lifted by thebucket elevator and then discharged into the horizontal belt conveyor, the belt conveyor conveys the bulk material to the silo. When discharging material, the bulk materials will be discharged to the downstream through the dump hopper,then conveyed by the horizontal belt conveyor to other place.

 bucket-elevator
 
The flat shape of silo includes square, rectangle, polygon and circular, etc. When the storage material is single species or the amount is small, independent silo or a single row layout can be adopted. When storage materials has many species, silos in groups can be arranged. The total length of the cylinder silo group is generally not more than 60 meters, the total length of the square silo group is generally not more than 40 meters. Appropriate measures should be taken when there is large silo group length or wall force and complex ground situation, such as setting a expansion joint in order to eliminate the shrinkage stress of concrete and temperature stress effects, setting a settlement joint to avoid uneven settlement influence due to huge load difference from different parts of the structure itself or the bearing capacity of foundation soil have obvious differences, setting an earthquake cracks in order to reduce earthquake damage. 

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2015年11月24日星期二

Necessary Data for Selecting a Suitable Bucket Elevator

Bucket elevator is a kind of hoisting equipment which is extensively used for cement, chemical products, grain, slag and many other materials or products. But how much do you know about model selection of bucket elevator? Here PK Machinery will illustrate the knowledge from the following aspects:
1. Materials
A.Name of material:_____
B.Density of material:_____t/m3
C.Particle size:_____mm
D.Handling capacity:_____t/h
E.Water content of material:_____%
F.Material temperature:_____℃
2. Height
A.Lifting length(distance between inlet and outlet):_____m
B.Outline height of bucket elevator:_____m
C.Distance between shaft of head drum and tail drum(shaft of chain wheel):_____m
3.Driving Device
A.Brand:domestic or imported?
B.Voltage:__V__Hz3ph
4.Other Parameters
A.Working condition, indoor or outdoor?
B.What is the upstream and downstream equipment?
Above mentioned model selection parameters are essential,if you have other special requirements,please let us know . More information or any interest, please visitwww.pkmachinery.com 

bucket-elevator-manufacturer

2015年11月18日星期三

Safe Installation of Bucket Elevator should to know

             As we all know bucket elevator installation is key to impact on the performance, but how  to conduct it rightly, here pk machinery will give you some advice for reference.
1. The bucket elevator must be firmly settled on a solid concrete foundation. Concrete foundation surface should be level and flat to make sure the bucket elevator can achieve vertical requirements after installation. Middle and upper casing section of a bucket elevatorshould be connected with the neighbour buildings in order to increase its stability. Firstly, install the bottom part, fix the anchor bolt, and then install the middle casing and upper casing. After finish the installation, please adjust the vertical height, upper and lower shaft should be parallel to each other, and shafts should be in the same plane. When install the bucket elevatorwith a lower height, you can connect the upper, middle and lower casing well first on the ground, and then hang the complete set vertically and fix it on the concrete foundation.

            2. After finishing the installation of casing, then install the chain and bucket. The            u-type screw which is used for connect the buckets is not only a chain                              connector but also a fixture of buckets. U-screw nuts must be tighten and                        locked securely, after the installation of chain and bucket, please adjust it to get              a proper tension. 
           3. Put an appropriate amount of oil or grease in the gearbox and bearing                            respectively, reducer should be lubricated with industrial gear oil, bearing seat                can be lubricated with calcium or sodium base grease.


2015年11月3日星期二

Function and Installation of Asbestos Tape on Bucket Elevator

Two days ago, a bucket elevator delivered by us has already arrived in Australia, now it is in installation process on site. However, our customer is wondering about the installation position of the asbestos tape as well as the function during installation. In this article I will introduce the function and installation method of the asbestos tape.

Asbestos consists of fiber bundle, fiber bundle is consisted of fibers which are thin and long shape and separated with each other. Asbestos has the advantage property such as highly fire-resistance, electric insulation and heat-resistance. The asbestos tape is made of superior asbestos which is applied for sealing material, heat-resistant material or other asbestos products.

The bucket elevator installation requires a good sealing property. Asbestos tape is the most common sealing material for bucket elevator, with it, the materials cannot leave out, this will reduce material waste, and also it can prevent the pollution outside. The position of asbestos tape should be installed between two casing flanges as a joint, which means we should insert an asbestos tape before connect the flanges, then connect it with bolts. Ok, the following pictures may help you understand how to do.