Zhite Hydraulic Pulping Machine for Food Waste

Product Overview

The Zhite hydraulic pulping machine is the core crushing, pulping, and homogenizing equipment in food waste treatment systems, specifically designed for processing sorted food waste, kitchen scraps, and other organic materials. Powered by a 55 kW variable-frequency motor, it relies on the shear, grinding, and turbulent flow effects generated by high-speed rotating cutter sets and fixed cutting discs to break down and grind materials into a uniformly fluid slurry with excellent flow characteristics. This slurry can be directly fed into downstream processes such as oil–water separation, anaerobic fermentation, and biochemical treatment, achieving integrated crushing–pulping–transport operations that greatly simplify the treatment process and enhance the efficiency of food waste pre-processing.

Equipment Structure and Components

The complete hydraulic pulping machine consists of an inlet, a pulping chamber, a spindle cutter assembly, a water supply system, a drive system, various discharge outlets, a frame base, as well as a matching slurry storage tank and an electrical control system. After materials are conveyed from upstream sorting and conveying equipment into the chamber, the water supply system provides process water. The power system uses a 55 kW variable-frequency motor connected via a V-belt to drive the spindle, which in turn rotates alloy steel moving cutters and fixed cutting discs in coordinated operation to perform crushing, grinding, and pulping. A dedicated slurry storage tank with a capacity of at least 1.5 m³, together with a screw pump, ensures stable delivery of the produced slurry to the next process, guaranteeing continuous production line operation.

Technical Principle

After sorting, food waste enters the pulping chamber carried by the water flow. The variable-frequency motor drives the high-speed rotating cutter set on the spindle, creating a combined effect of strong shearing, grinding, and hydraulic turbulence against the fixed cutting disc. Solid materials are rapidly sheared, crushed, and ground into fine particles. Once thoroughly mixed with process water, the material passes through a conical screen made of 304 stainless steel, forming a homogeneous slurry with fine particles and good flowability. Qualified slurry exits from the bottom outlet and is sent to the storage tank, while larger impurities are discharged through the inclined side outlet, effectively separating materials from contaminants. The equipment also features a backwash interface, allowing periodic cleaning of the chamber to prevent scale buildup and ensure long-term stable operation, truly realizing integrated crushing–pulping–transport operations. The resulting slurry can be directly supplied to downstream processes such as oil–water separation and anaerobic fermentation.

Core Performance Advantages

1. Integrated Crushing–Pulping–Homogenization: A single unit completes the entire process of shearing, crushing, grinding, and pulping, producing a fine, uniform slurry that meets the stringent requirements of anaerobic fermentation and oil–water separation regarding feedstock consistency, eliminating the need for additional equipment and simplifying the process flow.
2. Variable-Frequency Adjustable Power Configuration: Equipped with a 55 kW variable-frequency motor, its speed can be flexibly adjusted according to material characteristics and feed rate, adapting to different types of food waste and fluctuating feed volumes to ensure consistent pulping performance.
3. Wear-Resistant and Corrosion-Resistant Structural Design: The cutting discs are welded from alloy steel, the screens are made of 304 stainless steel, and the chamber body is constructed from 16Mn steel plate, paired with corrosion- and heat-resistant O-ring seals. This design accommodates food waste with high salt and fat content, effectively extending equipment lifespan and reducing spare parts replacement frequency.
4. Comprehensive Multi-Interface Functionality: An independent impurity discharge outlet separates uncrushed residues, preventing hard objects from entering subsequent processes; a stable slurry outlet at the bottom ensures consistent slurry output; and a built-in DN25 backwash port facilitates chamber cleaning, minimizing scale buildup and easing maintenance.
5. Complete Supporting Storage and Transport Unit: Featuring a slurry storage tank with a capacity of at least 1.5 m³ and a screw pump, this setup balances feed fluctuations and stably delivers slurry to the next stage, ensuring continuous and stable production line operation and avoiding disruptions caused by unstable feed.
6. Well-Developed Operation and Maintenance System: With clearly defined no-load and loaded commissioning procedures, comprehensive daily, weekly, monthly, quarterly, and annual maintenance plans, along with detailed troubleshooting guides, operators can quickly address equipment issues and minimize downtime.
7. Robust Safety Operating Procedures: Standardized operating protocols for startup, operation, shutdown, and emergency stop, coupled with clear safety guidelines such as lockout/tagout during maintenance, effectively mitigate operational risks and safeguard both personnel and equipment.

Core Product Value

1. Stable Operation of Downstream Processes: The uniformly sized slurry produced, with screen apertures of 6–8 mm, significantly reduces the likelihood of blockages in downstream anaerobic fermentation tanks and oil–water separation equipment, decreasing the frequency of shutdowns for cleaning and boosting overall system efficiency.
2. Enhanced Equipment Durability and Reduced Spare Parts Consumption: Alloy steel cutting discs and 304 stainless steel screens, combined with corrosion-resistant seals, adapt to high-salt, high-fat food waste conditions, extending the service life of wear-prone components and lowering spare parts procurement and replacement costs.
3. Streamlined Integrated Process: One single device handles crushing, grinding, and pulping, reducing the number of required machines, saving workshop space, and cutting project equipment procurement and site investment costs.
4. Automatic Impurity Separation: The independent impurity discharge outlet removes uncrushed hard objects, preventing them from entering subsequent processes and protecting downstream equipment such as screw pumps and tanks, thereby reducing the risk of damage.
5. Standardized Operations Reduce Downtime: Comprehensive operating procedures, tiered maintenance schedules, and troubleshooting manuals lower the technical threshold for maintenance personnel, enabling timely identification and resolution of equipment issues, minimizing unplanned downtime, and ensuring continuous production line operation.
6. Buffering and Flow Stabilization Ensure Continuous Production: The accompanying slurry storage tank with a capacity of at least 1.5 m³ and the screw pump balance feed fluctuations, providing a steady slurry supply to downstream processes and preventing interruptions caused by unstable feed volumes.

Target Customer Groups

This equipment is primarily intended for food waste disposal centers, solid waste environmental engineering companies, sanitation groups, food processing plants, agricultural market waste management projects, as well as owners of organic solid waste treatment projects implementing anaerobic fermentation and oil–water separation technologies, offering them efficient and reliable pre-treatment pulping solutions for food waste.

Application Scenarios

1. In food waste treatment projects, following material sorting, the pulping pre-treatment stage directly supplies homogeneous slurry to anaerobic fermentation and oil–water separation processes, ensuring stable downstream operations.
2. For organic materials such as vegetable trimmings from markets and food processing residues, this equipment performs crushing, grinding, and pulping, transforming these materials into homogenous slurry suitable for further processing.
3. In centralized kitchen waste disposal projects, serving as the core pulping equipment at the front end of anaerobic fermentation systems, it provides compliant feedstock to the fermentation process, enhancing fermentation efficiency and outcomes.

Solutions to Industry Pain Points

1. Addressing the issue of traditional crushing equipment only achieving simple fragmentation, resulting in uneven particle sizes, poor slurry flowability, and frequent blockages in downstream anaerobic tanks and oil–water separation devices, this equipment employs an integrated crushing–pulping process to produce uniformly sized, highly fluid slurry, effectively reducing the likelihood of downstream equipment blockages.
2. Concerning the problem of high salt and fat content in food waste, where ordinary equipment’s cutters and screens are prone to rust and wear, and seals easily corrode and leak, this equipment utilizes alloy steel cutters, 304 stainless steel screens, and corrosion-resistant seals, adapting to high-salt, high-fat conditions and extending equipment lifespan.
3. Tackling the pain point of fragmented crushing and pulping processes requiring multiple machines, lengthy workflows, and large footprints that increase project investment, this equipment integrates crushing–pulping–transport into one, reducing the number of required units and saving space and procurement costs.
4. To solve the issue of material scale buildup inside the pulping chamber, lack of flushing interfaces, and difficult cleaning, this equipment comes equipped with a DN25 backwash port, enabling regular chamber cleaning, reducing residual material buildup, and easing maintenance.
5. In response to the lack of standardized operating and maintenance guidelines on-site, leading to equipment misoperation and inadequate maintenance—resulting in overloading, severe vibration, and overheated bearings—this equipment features a comprehensive operation and maintenance system along with robust safety operating procedures, lowering the maintenance threshold and reducing equipment failures.

Common Questions FAQ

Q1: Which downstream processes can directly receive the slurry produced by the Zhite hydraulic pulping machine?
A: The homogenized slurry can be directly supplied to oil–water separation, anaerobic fermentation, biochemical treatment, and other downstream processes, meeting each process’s requirements for feedstock consistency.
Q2: What are the materials of the equipment’s cutter and screen, and can they handle high-salt, high-fat food waste?
A: The cutter is welded from alloy steel, the screen is made of 304 stainless steel, and paired with corrosion-resistant, high-temperature O-ring seals, fully capable of handling food waste with high salt and fat content.
Q3: How does the equipment deal with large impurities that cannot be crushed?
A: The equipment is equipped with an independent inclined side outlet for impurities; larger particles are discharged through this outlet, preventing them from entering subsequent processes and damaging downstream equipment.
Q4: Does the equipment have a self-cleaning function?
A: Yes, the equipment integrates a DN25 backwash port, allowing regular chamber cleaning to reduce material scale buildup and maintain internal cleanliness.
Q5: Can the equipment’s power system adjust its speed?
A: Equipped with a 55 kW variable-frequency motor, the speed can be flexibly adjusted according to material characteristics and feed volume, adapting to diverse operational needs.