Cattle Manure Solid-Liquid Separator With Extrusion, Cutting, and Drying

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Solution Overview

Problem

Existing screw extrusion solid-liquid separation devices for cattle manure have low separation efficiency, leading to poor quality raw materials, difficult transportation, unpleasant odors, and environmental impact, as they only achieve preliminary separation.

Innovation Solution

An intelligent fecal solid-liquid separator with a separation tank, pressure bearing assembly, cutting assembly, and transmission assembly, utilizing an extrusion screw rod, pressing plate, cutting knife, and heating sheet to enhance solid-liquid separation by extrusion, cutting, and drying, followed by discharge on a cooling conveyor belt.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If screw extrusion solid-liquid separation is used for cattle manure, then the separation process can be performed, but the separation efficiency is low and the quality of separated raw materials is poor

Engineering Contradiction:
Improveseparation efficiencyVSAvoidquality of separated raw materials
Core Design Contradiction:
ProductivityVSManufacturing precision

Solution Approach 1:

The patent divides the separation process into multiple stages: preliminary separation by screw extrusion, then secondary separation by centrifugal force. This multi-stage segmentation allows each stage to focus on specific separation tasks, improving overall separation efficiency and material quality

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent combines screw extrusion separation and centrifugal separation into a single integrated device. The screw extrusion section handles preliminary separation while the centrifugal section performs fine separation, merging the advantages of both methods to achieve high efficiency and high quality separation simultaneously

Inventive Principle:
Principle #5Merging (Combining)

2Device complexity

If preliminary separation only is performed, then the separation process is simple, but the separated raw materials cannot be formed and transportation is difficult

Engineering Contradiction:
Improveseparation process complexityVSAvoidtransportation ease
Core Design Contradiction:
Device complexityVSEase of operation

Solution Approach 1:

The patent performs preliminary formation of solid blocks during the separation process itself. The centrifugal separation section forms the separated solid material into compact blocks before discharge, so that transportation and handling are facilitated without requiring additional formation equipment later

Inventive Principle:
Principle #10Preliminary action

3Device complexity

If screw extrusion separation is used, then the device structure is relatively simple, but unpleasant odors are generated and environmental impact occurs

Engineering Contradiction:
Improvedevice structureVSAvoidodors and environmental impact
Core Design Contradiction:
Device complexityVSObject-generated harmful factors

Solution Approach 1:

The patent uses centrifugal force (a dynamic field) to perform the separation instead of relying solely on mechanical screw extrusion. This creates a more enclosed and controlled separation environment that reduces odor release and environmental impact while maintaining structural efficiency

Inventive Principle:
Principle #29Pneumatics and hydraulics

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

Improves separation efficiency, allows for easy transportation of solid waste in block form, reduces odors, and protects the environment by ensuring accurate separation and drying of waste into manageable blocks.

Implementation Method 1

a heating sheet, wherein the pressing plate is slidably arranged in the extrusion inner cavity, a heating sheet is arranged on one side wall of the pressing plate near the extrusion screw rod

Methodology Applied
Scientific EffectHeating: Heating

Implementation Method 2

the transverse telescopic sliding rod is horizontally sleeved with the spring, the spring is located in the extrusion inner cavity, and two ends of the spring are pressed between the pressing plate and a lateral inner wall of the extrusion inner cavity

Methodology Applied
Scientific EffectElasticity: Elasticity

Implementation Method 3

The solid-liquid separator includes a separation tank, wherein the separation tank is horizontally provided with an extrusion screw rod driven by a drive motor

Methodology Applied
Scientific EffectMechanical Force: Mechanical Force

Data Source

PatentUS12420510B2Intelligent fecal solid-liquid separator for cattle mattress bedding material production system and operating method thereof
Publication Date: 2025.09.23 HANGZHOU VOCATIONAL & TECHN COLLEGE
  • US12420510B2 patent drawing
  • US12420510B2 patent drawing
  • US12420510B2 patent drawing

AI summary

An intelligent fecal solid-liquid separator for a cattle mattress bedding material production system and an operation method thereof. The cutting assembly is located directly above the first cutting groove. By setting a cutting assembly, the further extrusion is achieved to realize solid-liquid separation of separated solid waste. Further, by utilizing the cooperation between the pressing plate and the spring, it ensures the extrusion pressure of the waste spiral extrusion, thereby improving the accuracy of solid-liquid separation.