Bucket elevator working principle and details

The lifting principle of the bucket elevator:

TD, D type bucket elevator working principle:

The TD bucket elevator consists of the running part (hopper and traction belt), with the upper section of the drive drum, the lower section with the tensioning drum, the middle casing, the drive unit, and the anti-stop brake. It is suitable for conveying non-abrasive and semi-abrasive bulk materials with loose density ρ<1.5t/m3 powder, granules and small blocks, such as coal , sand, coke, cement, crushed ore and so on. TD type bucket elevator structure: transmission TD type bucket elevator transmission has two types of YZ type reducer ZQ (or YY) type reducer. The YZ-type shaft reducer is directly mounted on the spindle shaft head, eliminating the need for a transmission platform, a coupling, etc., which makes the structure compact and lightweight, and has a profiled roller backstop inside, which is reliable. The reducer is low in noise, smooth in operation, and floats with the spindle to eliminate installation stress.

HL type ring chain centrifugal bucket elevator working principle:

HL type ring-chain centrifugal bucket elevator, consisting of moving part (hopper and traction chain), upper section with drive sprocket, lower section with tensioning wheel, intermediate casing, drive, reverse stop system Components such as moving devices. The hopper of the hoist is intermittently arranged, and is loaded by the "draw method", and the "centrifugal feeding method" is discharged. The traction mechanism of the hoist is two endless chains.

TH series bucket elevator working principle: T

The H-series bucket elevators are suitable for conveying powdered, granulated and small pieces of non-abrasive and abrasive materials. The TH type is a circular chain bucket elevator that uses a hybrid or gravity unloading, digging type of charging. Traction chain with the ring member height high alloy steel. The central casing is divided into single and double channels, and the internal hammer box is automatically tensioned by constant force. The sprocket adopts a replaceable rim combination structure. Long service life and easy rim replacement. The lower part adopts the gravity automatic tensioning device, which can maintain a constant tension and avoid slipping or de-chaining. At the same time, the hopper has certain tolerance when it encounters the jamming phenomenon caused by accidental factors, and can effectively protect the lower shaft and other components. The bucket elevator is suitable for conveying powdery, granular and small-sized bottom-grinding materials with a bulk density of less than 1.5t/m3. Such as coal, cement, gravel, sand, fertilizer, food and so on. The TH bucket elevator is used for vertical conveying of various bulk materials. It is suitable for conveying powdery, granular and small block materials. The material temperature is below 250 °C.

NE series plate chain bucket elevator working principle:

NE series plate chain bucket elevator This machine is inflow feeding, the material flows into the hopper and is lifted to the top by the plate chain, and the material is unloaded under the action of material gravity. This series of hoist specifications (11 kinds of NE15~NE800) has a large amount of lifting; and the production energy is high, the energy consumption is low, and it can gradually replace other types of hoists. The main parameters are as shown in the following table. The machine adopts a fully-sealed casing with a low chain speed and almost no returning phenomenon, so the reactive power loss is low, the noise is low, and the service life is long.

DZC series vibration hoist working principle:

DZC series motor vibration vertical hoist is composed of lifting trough, vibration motor, vibration damping system and base. This series of hoist uses vibration motor as the vibration source. The center lines of two vibration motors of the same type fixed on the lifting groove are installed at a certain angle and rotate in the opposite direction. The eccentric block of the vibration motor rotates. The component force of the centrifugal force generated by each instantaneous position reciprocates in the throwing direction, so that the entire body supported on the damper vibrates continuously, so that the material moves upward while being thrown up in the lifting groove, and the material falls into the feeding. After the trough, it is initially thrown up, which can make the material fully contact with the air, and can also play the role of heat dissipation and cooling. The hoist can transport the solid materials in powder, block and short fibers (except for viscous and easy to agglomerate), and can also dry and cool the materials. It is divided into two types: open and closed. It can be specially designed according to user needs.

Bucket elevator overview:

The bucket elevator is used to vertically lift the granular materials such as limestone , coal, gypsum , clinker and dry clay passing through the crusher , as well as powdery materials such as raw materials, cement and coal powder. According to the speed of the hopper, the bucket elevator can be divided into three types: centrifugal discharge, gravity discharge and hybrid discharge. Centrifugal unloading has a fast bucket speed and is suitable for conveying powdery, granular, small blocks and other materials with low abrasiveness; gravity dumping has a slower bucket speed and is suitable for conveying blocky and large specific gravity. , abrasive materials, such as limestone, clinker, etc. The traction members of the bucket elevator have several types such as a chain chain, a plate chain and a tape. The structure and manufacture of the chain are relatively simple, and the connection with the hopper is also very strong. When the material with large abrasiveness is conveyed, the wear of the chain is small, but its own weight is large. The structure of the plate chain is relatively firm and the weight is light. It is suitable for lifting hoists with large lifting capacity, but the hinged joint is easy to be worn. The structure of the tape is relatively simple, but it is not suitable for conveying materials with high abrasiveness. The temperature of the ordinary tape material does not exceed 60. °C, the clamp steel tape allows the material temperature to reach 80 °C, the heat-resistant tape allows the material temperature to reach 120 °C, and the temperature of the chain and plate chain conveying materials can reach 250 °C.

The main features of the bucket elevator:

1. The driving power is small, and the inflow type feeding, the inducing type discharging, and the large-capacity hopper are arranged intensively. When the material is lifted, there is almost no returning and excavating phenomenon, so the ineffective power is small.

2. Wide range of lifting, this kind of hoist has less requirements on the type and characteristics of materials, not only can improve the general powdery and small granular materials, but also can improve the material with high abrasion resistance. It has good sealing performance and less environmental pollution.

3. The operation reliability is good, the advanced design principle and processing method ensure the reliability of the whole machine operation, and the trouble-free time exceeds 20,000 hours. The lifting height is high. The hoist runs smoothly, so it can reach a higher lifting height.

4. The service life is long, the feeding of the hoist adopts the inflow type, and there is no need to use the bucket to dig the material, and the extrusion and collision phenomenon rarely occur between the materials. The machine is designed to ensure that the material is less sprinkled during feeding and unloading, reducing mechanical wear.

The working principle of the bucket elevator is: the hopper picks up the material from the storage below, and as the conveyor belt or chain is lifted to the top, it bypasses the top wheel and then flips down. The bucket elevator pours the material into the receiving tank. Inside. The belt of the belt-operated bucket elevator is generally a rubber belt that is mounted on the lower or upper drive roller and the upper and lower redirecting rollers. The chain drive bucket elevator is generally equipped with two parallel drive chains with a pair of drive sprockets on the upper or lower side and a pair of reversing sprockets on the bottom or the top. Bucket elevators are generally equipped with organic shells to prevent dust from flying in the bucket elevator.

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