Kitchen Waste Dehydrator

Product Overview

The kitchen waste dehydrator is a spiral-press type physical squeezing dehydration device designed for high-moisture kitchen waste. It employs a two-stage pressurized dehydration process, with 304 stainless steel standard in all parts that come into contact with the material. Available in three models—CTYZ‑200/300/400—the machine handles capacities ranging from 1.5 to 5 t/h, achieving efficient solid–liquid separation for kitchen waste with moisture levels of 80–90%. This significantly reduces the material’s water content; the resulting solid phase can be fed into subsequent fermentation processes, while the liquid phase is sent to an oil–water separation system for treatment. It serves as a core volume-reduction device in the resource recovery process for kitchen waste.

Equipment Structure and Components

The complete unit comprises a drive system, feed hopper, screw conveyor, screen mesh, pneumatic material-blocking device, collection tank, and frame. The drive system provides stable power for operation; the feed hopper receives the kitchen waste to be processed; the screw conveyor is the key component responsible for conveying and squeezing out moisture; the screen mesh separates the squeezed-out water from the solid material; the pneumatic blocking device applies reverse pressure to achieve secondary pressurized dehydration; the collection tank gathers the squeezed liquid and directs it to the outlet; and the frame offers robust structural support for the entire equipment.

Technical Principle

The dehydration process consists of two stages of squeezing, relying entirely on physical compression to separate solids from liquids. In the first stage, material enters the screw conveyor via the feed hopper. The conveyor is divided into a transport section, a compression section, and a discharge section. Within the compression section, the pitch and inner diameter of the screw progressively decrease, narrowing the space available for material movement and generating steadily increasing compressive force. As a result, internal moisture is continuously squeezed out, passing through the screen mesh into the collection tank and eventually discharged through the outlet. In the second stage, after the material reaches the discharge section, the screw conveyor exerts axial thrust to push the material outward, while the pneumatic blocking device applies opposing pressure at the discharge point, creating a secondary high-pressure squeeze that further extracts residual moisture from within the material. Once dehydration is complete, the solid phase pushes open the blocking device and exits through the discharge port, concluding the entire pressing and dehydration cycle.

Core Advantages

1. Two-stage pressurized dehydration: Combining primary squeezing in the spiral compression section with secondary reverse-pressure dehydration via the pneumatic blocking device at the discharge port, this process delivers stable physical squeezing results. Compared to single-stage squeezing equipment, it removes moisture more thoroughly, ensuring that the post-dehydration moisture content meets the requirements of downstream fermentation processes.
2. Excellent corrosion resistance: All parts in contact with materials are made of 304 stainless steel, with optional full-unit 304 stainless steel customization available. This makes the equipment highly resistant to the high-salt and high-fat conditions typical of kitchen waste, suitable for harsh operating environments, effectively extending service life and reducing maintenance frequency due to rusting.
3. Wide range of capacity options: With CTYZ‑200, CTYZ‑300, and CTYZ‑400 models, handling capacities span 1.5–5 t/h, accommodating projects of various sizes—from small and medium to mid-sized. Customers can select based on their specific project scale, avoiding situations where oversized equipment is underutilized or undersized equipment cannot meet demand.
4. Adjustable pneumatic blocking pressure: Using air pressure to provide reverse force, the pressure can be flexibly adjusted according to the material’s dryness/wetness and oil content, adapting to different incoming material conditions and ensuring ideal dehydration performance under diverse circumstances.
5. Customizable design: Equipment can be tailored to meet specific customer needs, satisfying personalized processing requirements and enhancing compatibility between the device and the project.
6. Comprehensive technical services: Offering pre-sales on-site surveys and model selection, in-sales assistance with construction planning, and post-sales installation, commissioning, and hands-on training, these services lower the operational threshold and help customers quickly master equipment operation and maintenance skills.

Core Value of the Product

1. Reduces material volume and transportation costs: Physically squeezing and dehydrating kitchen waste with moisture levels of 80–90% significantly cuts its total weight and volume, lowering subsequent transportation expenses and easing the processing load on fermentation systems, thereby improving the overall economic efficiency of kitchen waste management.
2. Ensures reliable dehydration with dual-stage squeezing: The combination of spiral compression and pneumatic blocking for secondary pressurization delivers more stable dehydration results than single-stage squeezing, safeguarding the quality of materials entering fermentation and boosting fermentation efficiency and product quality.
3. Extends equipment lifespan through corrosion resistance: Parts in contact with materials are made of 304 stainless steel, with optional full-unit stainless steel customization, effectively resisting salt and oil corrosion common in kitchen waste, reducing maintenance frequency due to rust, prolonging service life, and cutting long-term usage costs.
4. Flexible capacity options: With three models offering 1.5–5 t/h capacity, the equipment accommodates projects of varying scales, helping customers precisely match equipment capacity to avoid wasted investment or insufficient processing capability.
5. Lowers barriers to project implementation: Providing free on-site surveys, custom design, installation, commissioning, and hands-on operator training, these services reduce customers’ technical burdens and facilitate rapid project deployment and stable operation.
6. Facilitates resource recovery through product diversion: The solid phase after squeezing can be used for fermentation-based fertilizer production, while the squeezed liquid is directed to an oil–water separation system for waste oil recovery, maximizing resource utilization and enhancing both environmental and economic benefits of the project.

Target Customer Groups

Kitchen waste disposal centers, municipal solid waste treatment companies, catering and hotel facilities, industrial parks, farmers’ market waste treatment projects, and entities developing food waste resource recovery initiatives—all face demands for reducing and recycling kitchen waste. This equipment effectively addresses their solid–liquid separation needs during production and operations.

Application Scenarios

1. Solid–liquid squeezing dehydration stage following crushing in kitchen waste processing lines: After kitchen waste has been crushed, this equipment performs solid–liquid separation, providing qualified solid material for subsequent fermentation or other processing steps.
2. Supporting dehydration operations at the backend of integrated kitchen waste treatment machines: Acting as complementary equipment to integrated units, it further dehydrates materials processed by the main machine, enhancing overall treatment efficiency.
3. Dehydration and volume reduction for vegetable trimmings and organic kitchen waste at farmers’ markets: Addressing vegetable scraps and organic waste generated at farmers’ markets, this equipment reduces transportation and processing costs.
4. Pre-processing and dehydration: Supplying dehydrated solids to fermentation systems and directing squeezed liquids to oil–water separation systems—serving as a pre-treatment device in resource recovery processes, sending dehydrated solids to fermentation for fertilizer production and directing liquids to oil–water separators for waste oil recovery, thus maximizing resource utilization.

Solutions to Industry Pain Points

1. For raw kitchen waste with moisture levels as high as 80–90%, leading to heavy fermentation loads, poor fermentation efficiency, large material weights, and high transportation costs: This equipment uses physical squeezing dehydration to dramatically reduce moisture content, lighten material weight and volume, cut transportation expenses, and ease the processing burden on downstream fermentation systems, thereby improving fermentation efficiency.
2. For ordinary single-stage squeezing equipment suffering from insufficient squeezing force, poor dehydration results, and persistently high moisture content in discharged materials: This equipment adopts a two-stage pressurized dehydration process—primary squeezing via spiral compression combined with secondary reverse-pressure dehydration using pneumatic blocking—providing ample squeezing force and more stable dehydration outcomes, effectively lowering moisture levels in discharged materials.
3. For kitchen waste characterized by high salt and oil content, which easily causes ordinary carbon steel equipment to rust and fail, shortening service life: This equipment features 304 stainless steel components in contact with materials, with optional full-unit stainless steel customization, boasting excellent corrosion resistance to withstand the corrosive effects of kitchen waste salts and oils, extending equipment lifespan.
4. For projects of varying scales lacking tiered model options, resulting in oversized equipment being underutilized or undersized equipment failing to meet demand: This equipment offers three models with different capacities, covering a range of 1.5–5 t/h, allowing customers to choose based on project size and avoid mismatches between capacity and actual needs.
5. For many organizations lacking experience in operating solid waste equipment, facing challenges in selecting, installing, and operating equipment without adequate professional technical support: This equipment provides comprehensive technical services, from pre-sales model selection to post-sales training, offering continuous professional support to help customers overcome operational difficulties and lower barriers to project implementation.

Frequently Asked Questions (FAQ)

Q1: How effective is this kitchen waste dehydrator in dehydration?
A: This equipment employs a two-stage pressurized dehydration process—primary squeezing in the spiral compression section followed by secondary reverse-pressure dehydration via pneumatic blocking at the discharge port—delivering stable physical squeezing results. It effectively reduces moisture content in kitchen waste with moisture levels of 80–90%, ensuring the quality of materials entering downstream fermentation processes.
Q2: What materials are used in the equipment, and can it withstand the corrosive environment of kitchen waste?
A: Parts in contact with materials are made of 304 stainless steel, with optional full-unit 304 stainless steel customization available. This makes the equipment highly resistant to the high-salt and high-fat conditions typical of kitchen waste, suitable for harsh operating environments and effectively extending service life.
Q3: What models are available, and what are their respective capacities?
A: We offer three models—CTYZ‑200, CTYZ‑300, and CTYZ‑400—with capacities ranging from 1.5 to 5 t/h, capable of meeting the needs of projects of various sizes, from small and medium to mid-sized.
Q4: Can we customize the equipment to suit our specific project requirements?
A: Yes, this equipment supports customized design. We can tailor the equipment to meet unique customer needs, addressing personalized processing requirements for different projects.
Q5: What technical services are provided after purchasing the equipment?
A: We offer comprehensive technical services, including pre-sales on-site surveys and model selection, in-sales assistance with construction planning, and post-sales installation, commissioning, and hands-on training, helping customers lower operational thresholds and quickly master equipment operation and maintenance skills.