Kitchen waste screw conveyor

Kitchen waste screw conveyor is a conveying equipment designed specifically for the treatment of food waste. Its main function is to convey such materials with high moisture content, strong viscosity and possible debris in a closed and stable manner. Common types include shaft screw conveyors and shaftless screw conveyors that are more commonly used for food waste. Depending on the equipment model and configuration, the processing capacity of this type of conveyor is generally between several tons and tens of tons per hour, which can meet the needs of food waste treatment of different scales. The design of the equipment focuses on coping with the characteristics of food waste that are easy to rot, easy to entangle, and easy to clog, ensuring the smooth flow of materials within the treatment system.

What are the common types of Kitchen waste screw conveyors?

Given the characteristics of food waste, Kitchen waste screw conveyors usually tend to choose shaftless screw conveyors. This is because food waste has the following significant characteristics, which makes the shaftless screw conveyor more advantageous than the traditional shafted screw conveyor:
High moisture and viscosity: Food waste has a high moisture content and rich organic matter content, which easily forms sticky clumps. In the shafted screw conveyor, these sticky materials will be entangled on the central shaft, causing blockage and difficulty in cleaning. The shaftless screw conveyor has no obstruction of the central shaft, which can effectively avoid the entanglement and blockage of materials.
Complex composition and containing debris: Food waste is often mixed with various debris such as chopsticks, plastic bags, bones, cloth strips, glass fragments, etc. The central shaft of the shafted screw conveyor is easily entangled, stuck, and even damaged by these long fibrous or irregular debris. Due to its open structure, the shaftless screw conveyor can better pass these debris and reduce the risk of blockage and equipment damage.
Perishable and easy to produce odor: Food waste is perishable organic matter. If it remains inside the equipment, it will quickly rot and produce a strong odor. Since the shaftless screw conveyor has no central shaft, its internal structure is relatively simple, easier to clean, reducing the chance of material residue and bacterial growth, and helping to control odor.

Basic parameters of Kitchen waste screw conveyor

Model	WLS150	WLS200	WLS250	WLS300	WLS400	WLS500
Spiral diameter(mm)	150	184	237	284	365	470
Outer diameter(mm)	180	219	273	351	402	500
Incline degree(a)	0 °-30 °	0 °-30 °	0 °-30 °	0 °-30 °	0 °-30 °	0 °-30 °
Max Length(m)	12	13	16	18	22	25
Capacity(t/h)	2.4	7	9	13	18	28

 

Motor	Model	L ≤ 7	Y90L-4	Y100L1-4	Y100L2-4	Y132S-4	Y160M-4	Y160M-4
	Power kW	L ≤ 7	1.5	2.2	3	5.5	11	11
	Model	L>7	Y100L1-4	Y100L2-4	Y112M-4	Y132M-4	Y160L-4	Y160L-4
	Power kW	L>7	2.2	3	4	7.5	15	15Notes : The parameter above is just for reference, Model please inquiry us directly. We accept customization.

What are the advantages of Kitchen waste screw conveyor?

Due to its high moisture content, strong viscosity, complex composition and easy to rot, kitchen waste (kitchen waste) faces many challenges in the transportation process. In view of these characteristics, Kitchen waste screw conveyor shows its unique advantages, making it an indispensable key equipment in the kitchen waste treatment system.
Compact structure and high space utilization: Compared with other types of conveying equipment such as belt conveyors, screw conveyors have a more compact structure and a small footprint. This gives it a clear advantage in kitchen waste pretreatment workshops or transfer stations with limited space. Its flexible layout, such as horizontal, inclined or even vertical conveying (specific design), can better adapt to the needs of different process layouts and improve the space utilization of the plant.
Corrosion resistance and long life: The organic acids and salts in kitchen waste are corrosive to ordinary steel. Therefore, Kitchen waste screw conveyor usually uses high-quality stainless steel (such as 304 or 316L) as the main manufacturing material to enhance its corrosion resistance, thereby ensuring that the equipment can operate stably for a long time in a humid and corrosive environment, prolonging its service life and reducing the frequency of replacement.
Auxiliary functions during transportation: Some Kitchen waste screw conveyors can also realize some auxiliary functions while conveying, such as extrusion dehydration (through specially designed spiral blades or discharge port extrusion devices, preliminary solid-liquid separation of food waste is carried out to reduce the subsequent processing load) or preliminary crushing (in the process of conveying, some soft agglomerates or smaller lumps are simply crushed).

What are the application scenarios of Kitchen waste screw conveyor?

Kitchen waste screw conveyor is mainly used in various scenarios of conveying wet, sticky, perishable and possibly sundry organic waste materials. These scenarios usually involve the centralized collection, pretreatment, transfer or subsequent processing of such special materials.
Material concentration and preliminary transportation: At the collection point or unloading area of food waste, the screw conveyor can lift and transport bulk food waste from the ground, hopper or collection container to the next processing unit. This includes conveying the garbage directly from the collection and transportation vehicles to the pretreatment equipment to achieve continuous feeding of materials.
Connection and transfer between process links: In the process of food waste treatment, it often includes multiple functional units, such as crushing, solid-liquid separation, fermentation, etc. The screw conveyor plays the role of a bridge connecting the units, and conveys the materials that have passed one treatment stage to the next treatment stage in a stable and closed manner. For example, the crushed food waste is conveyed to the solid-liquid separator, or the separated solid residue is conveyed to the anaerobic fermentation tank or composting area.
Conveying materials after solid-liquid separation: After the food waste is treated by solid-liquid separation equipment such as pressing or centrifugation, dehydrated solid phase (such as food waste residue) and liquid phase will be produced. Screw conveyors are particularly suitable for conveying this semi-solid, still sticky solid residue, and conveying it from the bottom or side of the separation equipment to the drying equipment, fermentation tank or other resource utilization equipment.  
Kitchen waste screw conveyor provides a specific and feasible solution for the transportation of materials in the current food waste treatment practice. When transferring food waste from one processing link to the next, it can effectively control the dissipation of odor and leachate, and maintain a clean working environment. Through the selection of equipment materials and structures, it can adapt to the complex physical state of food waste and support regular cleaning and maintenance to ensure the continuous and stable operation of the equipment.