Method for the Production of Compacts and Apparatus for the Production of Compacts

Simple SummaryContent extracted from patent full text and abstract with AI.

The invention describes a method and apparatus for producing compacted products (such as briquettes or pellets) through an improved multi-stage pressing process. It features feeding material into a mold, performing a pre-compression with a dedicated pre-compression ram or screw to create a stable preliminary agglomerate, then applying main compression in a separate step to form the final pressed product, and finally ejecting it. The process and machinery are designed to be energy-efficient, scalable, and capable of handling different types of materials while allowing simultaneous, parallel production steps for increased throughput.

Use CasesContent extracted from patent full text and abstract with AI.

• Manufacturing fuel briquettes from biomass or coal for energy production.
• Recycling waste materials (such as agricultural residues, household waste, or industrial by-products) into handleable, dense blocks or pellets.
• Processing minerals, fertilizers, or chemicals into compact forms for easier storage and transport.
• Producing feed pellets or supplement blocks for the agricultural industry.
• Continuous feeding of compacted solids into high-pressure reactors (e.g., for gasification processes).

BenefitsContent extracted from patent full text and abstract with AI.

• Enables highly efficient and energy-saving pressing by splitting compression into pre- and main stages, with tailored force and displacement at each step.
• Allows for a simple, robust, and modular machine design that can be adapted to different materials and production sizes.
• Parallel and simultaneous operation of pressing stages increases production throughput compared to traditional sequential machines.
• Capable of handling a wide variety of feedstocks (biomass, fossil materials, minerals, waste, etc.), making it broadly applicable.
• Improved product consistency due to precise control of material feeding and compression.
• Reduces mechanical wear and oil consumption by limiting maximum actuator travel and force to only when necessary.
• Can produce binderless or binder-assisted compacts, expanding its utility across industries.

Technical Classifications (CPCs)

Inventors & Applicants

Patent Abstract

The invention relates to a method for producing pressed products and to an assembly for producing pressed products, in which the disadvantages of the prior art are overcome and an efficient method is achieved together with simple construction and simple implementation. Method for producing pressed products, in which, after feedstock has been supplied, the volume of the feedstock (11) is reduced and the feedstock subsequently undergoes a main compression process to form a pressed product and the pressed product is ejected, characterised in that, after the feedstock (11) is supplied, a preliminary compression process takes place to form a preliminary agglomerate (12) using at least one preliminary compression ram (1) or using at least one compacting screw (17) and the preliminary agglomerate (12) then undergoes the main compression process to form a pressed product in at least one compression mould (3) using at least one main compression ram (21) and the pressed product is then ejected from the at least one compression mould (3), the preliminary compression process, the main compression process and the ejection each taking place in a mutually parallel working direction. Assembly for producing pressed products, wherein, in at least one mould receiver (2), there is at least one compression mould (3) having a supply means (10) for feedstock (11), wherein the at least one compression mould (3) can be brought into alignment with at least one preliminary compression ram (1) or at least one compacting screw (17) and with at least one main compression ram (21), wherein the working directions of the at least one preliminary compression ram (1) or the at least one compacting screw (17) and the at least one main compression ram (21) are mutually parallel, wherein there is a counter pressing plate (4) on the side of the respective compression mould (3) or mould receiver (2) which is nearest or furthest away from the at least one preliminary compression ram (1), and there is a counter pressing plate (4) and/or a moulding channel (30) with a narrowed region (31), on the side of the respective compression mould (3) which is furthest from the at least one main compression ram (21), wherein the at least one compression mould (3) is continuous in the working direction.