Drum vibrating sifter is essential units which can apply in the mineral and solid-waste processing industries. It consists of a perforated cylindrical drum which is normally elevated at an angel at the feed end. Physical size separation is achieved as the feed material spirals down the rotating drum, where the undersized material smaller than the screen apertures passes through the screen, while the over-sized material exits at the other end of the drum.
Drum vibrating sifter used to separate materials by sieve size. Production rates can vary from 20 to 30 yards an hour to several hundred yards of material an hour based on number of factors described in this article.
It is consisting of five parts as drum, frame, hopper, reducer and motor, which provide a simple, efficient and economical solution to upgrade a wide rang of material and optimize the subsequent process steps of recovery.
Working Principle
Drum vibrating sifter consists of five parts as drum, frame, hopper, reducer and motor. After the material into the drum, on one hand, materials being screened along with the rotation of drum, on the other hand, the bigger materials flow forward along the direction of slope and be separated by the screen with different numbers of meshes. The different materials fall into different hoppers and then are sent to different finished product stacks by manpower or belt conveyor.
Drum Sifter is essential elements which can apply in the mineral and solid-waste processing industries. It consists of a perforated cylindrical drum which is normally elevated at an angle at the feed end. Physical size separation is achieved as the feed material spirals down the rotating drum, where the undersized material smaller than the sift apertures passes through the sieve, while the over-sized material exits at the other end of the drum.
Features
Steady and smooth operation.
Low noise and low energy consumption.
Simple structure with easy maintenance.
Low dust pollution.
Long life span.
Suitable to separate various materials especially poor quality of coal and coal slime.
Equipment is fully sealed with cover in order to minimize the suspension of fine materials in the air during the operation.
High screening efficiency due to installation of comb shape screen structure.
Cylindrical shape of the screen provides larger surface area for the materials to in contact with. Able to handle large capacity of materials with high efficiency.
Trommel screen sifter can be sealed designed, no dust pollution
Special screen mesh design, high screening efficiency, longer service life, less blockage
Application
Drum vibrating screen is widely used in classifying the solid materials in coal, mining, electric power, light industry and other industries, screening the wet materials in metallurgy, construction industry and chemical industry, too.
Introduction
Gzd vibrating feeder consists of vibration frame, vibrating motor, spring, support base and wearable linear. It conveys the bulk or granular material from the hopper to the receiving device evenly, timely and continuously. It can feed the material for the belt conveyor, bucket elevator, crushing machine and screening machine. It is widely used in metallurgy, mining, coal, building, chemical industry, mechanical, light industry, food, etc.
Functional principle
Gzd vibrating feeder uses double vibrating motor drives the exciter to make the feeding hopper do reciprocating linear motion along slant direction. When the acceleration vertical component of vibrating feeder hopper is more than acceleration of gravity, the material in the hopper is tossed and jump as the parabolic path. The tossing and falling of the material is finished instantly to achieve the feeding.
Advantages
Feeding hopper is not easy to wear
High precision feeding
Easy installation and maintenance
Product Detailed Description:
We supply refurbished MacBook Air and MacBook Pro models, 2017 and newer, with various configurations (RAM, SSD, screen sizes).
Each device is professionally inspected, tested, and cleaned by our in-house technicians.
Models available: MacBook Air / Pro (2017~2020, Intel), selected M1 models
Condition: A~B Grade (fully functional, minor cosmetic wear possible)
Battery: 80%+ health or replaced
Keyboard & display: Fully tested (no dead pixels, no ghost touch)
OS: Fresh installation of macOS
Packaging: Secure export-ready pallet packing (25 units per box)
MOQ: 25 units per model (negotiable for first-time buyers)
Warranty: Optional 30-day functionality guarantee available
We follow strict quality control procedures to ensure every MacBook meets global resale standards.
Cast Iron and Ductile Iron tube and fittings PL739
Cast Iron and Ductile Iron tube and fittings can be offered by our comapny to meet different engineering needs.
The difference between ductile iron and gray iron
1. Different chemical composition
Nodular cast iron contains nodular graphite, which can improve its toughness and strength, while reducing brittleness. Gray cast iron contains a lot of carbon, so that its hardness and wear resistance is high, but the toughness is poor.
2. Different organizational structures
The structure of nodular cast iron contains nodular and ferrite, and the distribution of nodular is uniform. While the structure of gray cast iron is mainly ferrite and pearlite, and the distribution of pearlite is uneven.
3. Different performance
Ductile iron has high strength and toughness, and has good corrosion resistance. It is uitable for the manufacture of high load and high pressure parts. The hardness and wear resistance of gray cast iron are high. It is suitable for the manufacture of friction and wear parts.
Application field
Cast iron : because of its low strength and good vibration resistance. It is often used in the production of parts under compressive stress, such as box, base, etc.
Ductile iron : because of its high strength and good toughness. It is often used in the manufacture of parts requiring high strength and toughness, such as crankshaft, connecting rod and so on.
Introduction
YA series circular vibrating sifter is a multi-layer, high-efficient vibrating screen machine, with the applications of classification, separation, grading, according to material particle size. It is basically a sifting machine that works in circular motion to classify any sizes of bulk materials, such as coal, minerals, stone, and coke, etc. Separating machine consists of screen deck, screen box, vibrating motor, eccentric block, rubber spring, and coupling-adopt motor with vibration exciter that work together to efficiently classify and separate the materials according to any requirement size.
Working Principle
Circular Vibrating Sifter using indirect excitation of the screen mesh. The entire screen frame is driven by unbalance masses, which produce a circular vibrating motion. It used eccentric block to produce strong exciting force. The directionless vibrations of the circular vibrating system have a steep launch angle and the screen area must be further tilted in order to achieve a suitable transport speed.
Drive and Mounting of Circular Vibrating Screen Drive is by electric motor and cardan shaft to the main drive shaft equipped with a single unbalance weight where required additional v-belt can be provided. The drive shaft is mounted on heavy duty roller bearing sets, lubricated with grease or oil. Like the linear vibratory screens, circular vibrating screens are mounted on reinforced rubber springs to prove the same benefits in performance and longer lifespan.
Features
Advanced structure and easy maintenance;
High amplitude and large angle of inclination;
High screening efficiency, large processing capacity, multiple layers (1-5);
Long service life, low power consumption and low noise;
High sifting efficiency;
Adoption of punching sieve or steel made screening mesh in order to prevent blockage;
Sift body connected by using high strength screw bolts;
Adopts spring steel woven mesh or perforated sieve-plate, which is helps to prolong the service life and prevent blockage;
Rubber vibration spring is used to reduce noise pollution and provide smooth vibration operation.
Application
YA series vibrating sifter is Widely used in Chemical, coal dressing, mineral ore dressing, building material, hydro-power, light, construction industries, etc. Generally, these models are built to specifically classify large, middle and small materials efficiently.
Introduction
Tumbler sieve is designed to meet the high output and precision screening of manufacturers and special design of an efficient screening machine. The simplest screening is a binocular fixation and hands screening, swinging screening machine is the simulation of this movement. At present, it is the most effective simulated artificial sieving movement effective principle. It meets all the fine and ultrafine particulate materials, especially for hard process materials.
Functional principle
The residence time of each product can be adjusted by the radial direction and the tangential angle of the swinging screen. Then, established the level and throwing three-dimensional tumbling motion. From the center to the outer edge in the sieve surface is uniformly dispersed, to in a spiral motion to the axial propagation. Thus fine particles complete the whole screening process. Horizontal and vertical acceleration with the movement of the material increased, and close to the aperture size of particles subsequently successfully separated, larger particles were transported to the exit, the outlet is controlled by an adjustable guide device, which is another factor that controls the retention time of the material. The process is repeated among each layer of screen.
Advantages
Greatly improving the screening efficiency
Shorten screening time
screw conveyor is a kind of machine which USES the motor to drive the screw to rotate and push the material to realize the purpose of conveying.It can be horizontal, oblique or vertical transport, has the advantages of simple structure, small cross-sectional area, good sealing, easy to operate, easy maintenance, easy to close the transport and so on.
Tumbler Screen is used for the treatment of valuable powders, pellets and granules. For applications in pharmacy, food and fine chemicals produces tumbler and vibration screening machine according to GMP.
Tumbler Screen is used for the treatment of valuable powders, pellets and granules. For applications in pharmacy, food and fine chemicals produces tumbler and vibration screening machine according to GMP.
Bag dump stations (also known as manual dumping stations) collect dust generated when dumping powder and bulk solids from bags, boxes, drums, and other containers, and return the material to the hopper.
Bag dump stations (also known as manual dumping stations) collect dust generated when dumping powder and bulk solids from bags, boxes, drums, and other containers, and return the material to the hopper.
Bag dump stations (also known as manual dumping stations) collect dust generated when dumping powder and bulk solids from bags, boxes, drums, and other containers, and return the material to the hopper.
Bag dump stations (also known as manual dumping stations) collect dust generated when dumping powder and bulk solids from bags, boxes, drums, and other containers, and return the material to the hopper.
Bag dump stations (also known as manual dumping stations) collect dust generated when dumping powder and bulk solids from bags, boxes, drums, and other containers, and return the material to the hopper.
The system reduces material waste and eliminates the need to clean a remote dust collection site, while protecting workers and preventing plant contamination.
Bag dump stations (also known as manual dumping stations) collect dust generated when dumping powder and bulk solids from bags, boxes, drums, and other containers, and return the material to the hopper.
z type bucket elevators are used to handle powders, bulk solids or friable ,fragile materials because they minimize product damage or are used to handle light fluffy materials where aeration of the product must be avoided.
Linear vibrating screen adopts double vibrating motors as power source, with the specific working mode of these two motors make the materials be thrown up on the sieve and go forward in a straight line.
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