What is the working principle of screw conveyor?

Screw conveyor is a machine that uses a motor to drive the screw to rotate and move materials to achieve the purpose of conveying. When the spiral shaft rotates, due to the gravity of the material and the friction generated by it and the tank wall, the material can only move forward along the bottom of the groove of the conveyor under the push of the blades.

Screw conveyor is a kind of conveying equipment widely used in chemical, building materials, grain and other departments, mainly conveying powdery, granular and small block materials. It is not suitable for conveying perishable, viscous and caking materials.

The ambient temperature used by the screw conveyor is -20 50 ° C; The material temperature is less than 200°C; The inclination of the conveyor is 20°; The conveying length is generally less than 40m, and the longest is not more than 70m.

Compared with other conveying equipment, screw conveying has the advantages of simple structure, small cross-sectional size, good sealing performance, multi-point loading in the middle, safe and convenient operation and low manufacturing cost.

This structure must be combined with an outer cylinder in order to convey the material. The coefficient of friction of the outer cylinder is comparatively large, while the coefficient of friction of the spiral structure is very small.

If you only analyze the spiral structure, of course you can't analyze it.

The fully enclosed conveying and easy-to-clean spiral surface are adopted, which can run at low speed during conveying, smooth transmission, reduce energy consumption, and the material is not easy to block.

1) The screw conveyor runs smoothly in the conveying straw and the feeding is uniform.

2) It is closed, and after connecting with the feed port of the gasifier, it is not easy for cold air to enter.

3) The connection with the gasifier is made of metal, which is not afraid of fire.

The screw conveyor is generally suitable for conveying powdery materials with less abrasiveness, and the conveying capacity cannot be too large, which can be sealed and dust-proof. The function is to convey materials.

The screw conveyor is mainly used for the transportation of granular, powder and mixed materials. The conveying mode can be horizontal conveying and inclined conveying. The inclination angle of inclined conveying should not exceed 60

What is the design of the screw conveyor? The screw conveyor, commonly known as auger, is a screw conveyor that uses a rotating screw to transfer materials, which is characterized by sealed transmission and simple structure. Screw conveyor is metallurgy, building materials, chemical industry, grain and.

LSY screw conveyor is mainly used to convey cement and fly ash materials to the concrete mixing plant, and is also suitable for chemical, metallurgy, granary processing, storage and other places suitable for screw conveyor, the machine has a small spiral diameter, high speed, large conveying capacity, high precision and good conveying conditions. The driving device adopts a gear reducer, which has large torque, low noise, no oil seepage, long life, and the conveying shell adopts high-quality seamless pipe and flange connection. Henan Tengfei LSY screw conveyor has good overall rigidity and large bearing capacity, and can be continuously conveyed when conveying, whether it is horizontal conveying or large inclination angle, and can choose the working position and working state at will, it is convenient to disassemble and decorate, safe and reliable, and it is an environmentally friendly product that is the first to think.

Structural diagram of tubular screw conveyor:

U-shaped screw conveyor structure drawing:

Resources.

The composition of the screw conveyor generally consists of a power source (electric motor or internal combustion engine, etc.), a reducer (also known as a reducer), a screw rod, a spiral groove and the corresponding base. It is a common equipment for conveying powders (such as: flour, stone powder, etc.), and its installation form is mainly horizontal installation, and a certain amount of oblique installation can also be carried out.

The screw conveyor is a continuous conveying machine that uses the spiral blades on the rotating shaft to convey powdery and granular materials along the trough with the characteristics of simple structure, small cross-sectional size and good sealing. It has the function of process delay and buffering, which can greatly increase the cooling or drying cycle, the overall structure, high reliability, simple debugging, low maintenance cost, and is widely used in medicine, food and beverage, electronics, electrical appliances and printing industries.

How are the shafts in the spiral connected?

1. Root Description.

LS500 screw conveyor is a product designed and developed by our company in combination with various screw conveyor experience at home and abroad, which can meet the requirements of the batching scale of each mixing station (building), and the products are sold all over the country and are used in various mixers. And exported to foreign countries.

Second, the scope of application of the product.

The screw conveyor is not only suitable for conveying cement, lime and fly ash in the concrete mixing plant of the construction machinery industry, but also for metallurgy, chemical industry, machinery, light industry, building materials, food, grain storage and other industries.

Loose powder or small granular materials, such as: pulverized coal, sinter powder, urea, compound fertilizer, dry sand, flour, grain, etc.

Third, the characteristics of product structure.

1. LS500 screw conveyor is a non-basic fixed type, the screw conveyor is composed of a geared motor device and a shell pipe, and the screw assembly is combined into a complete set of equipment, which is very convenient for moving, disassembling and assembling.

2. The spiral assembly and the shaft end are connected by splines, which is convenient for assembly and disassembly, large bearing capacity, good neutralization, safe and reliable.

3. The sealing performance is good, the shell is made of seamless steel pipe, and the ends are connected by flanges, so that the whole machine has no dust leakage, and no waste of materials is wasted, so as to create a good working environment and meet the requirements of environmental protection.

4. Small size, high speed, variable pitch, to ensure fast and uniform conveying.

5. The feeding port can be made according to the required inclination angle according to the conditions of the work site, and can be connected by flange, bag and universal flange, which can be selected by the user according to his needs. (Specify at the time of ordering).

5. Installation and use requirements.

During installation, the bolts of each connection part must be firmly connected, and the flange interface of the shell pipe is equipped with a sealed rubber plate to prevent leakage and material overflow in rainy days. The screw machine has a long distance of conveying distance.

can often exceed 10 meters), consider the middle part of the shell pipe to be supported by a support frame or hoisted with a wire rope. Be sure to add 90 industrial gear oil to the gearbox before use. The oil should be changed once every two months after the first use, and then every half.

Change the oil once a year. Before each shift, add enough grease to the lifting bearing and end bearing.

When using, the machine should be started first and then fed, and the conveying capacity of the conveyor should be adapted to its specifications. When the work is stopped, the material in the shell should be conveyed clean before stopping. The inlet pipe and the shell pipe should not be filled with material for a long time, especially if it is susceptible.

Tide-agglomerated material. If the conveyor is out of production for a long time, at the end of the last work, the peephole cover should be opened to clean the material in the shell pipe.

The screw conveyor can be arranged in the form of horizontal or inclined conveying, and the improved hanging bearing structure of the screw conveyor shaft is used to make the material pass more smoothly.

The screw conveyor is mainly composed of a driving device, a head assembly, a casing, a shaft spiral, a trough lining, a feed port, a discharge port, a cover, a base, etc.

Drive device: Cycloidal pinwheel reducer or shaft-mounted hard tooth surface gear reducer is adopted, and the driving device should be set at the end of the discharge port as far as possible during installation, so that the spiral body is in a tensile state during operation. The head is equipped with a thrust bearing to withstand the axial forces generated when conveying material.

Chassis: The chassis is U-shaped or O-shaped, and the upper part is covered with rain-proof cover, which is made of stainless steel or carbon steel or fiberglass.

Shaft spiral: made of stainless steel or carbon steel.

Tank lining: made of wear-resistant plastic plate or rubber plate or cast stone plate, etc.

Inlet and outlet: There are two kinds of inlet and outlet: square and round, and the form of inlet and outlet is generally determined by the user.