1. CTYZ Screw Press Dehydrators (General Product Line)
The CTYZ series appears to be a family of screw press dehydrators / spiral extrusion dewatering machines produced by Weifang Chuantai Machinery Co., Ltd.. These units are physical solid–liquid separation machines that operate by mechanical extrusion/dewatering rather than thermal or chemical extraction.
Core Characteristics:
Mechanical solid–liquid separation using a screw conveyor and screen mesh.
Models in the CTYZ series include sizes such as CTYZ-160 / 200 / 300 / 400 / 500 / 600 / 800 with capacities from roughly 0.5 to 30 t/h (tonnes per hour) depending on configuration.
Typical materials they handle: high-fiber wastes such as tea leaf residue, middle medicinal plant residuals, animal manures, organic sludges, agricultural byproducts, pulp etc.
Modular customization options (rotor length, screen size, materials such as 304 stainless steel, and inlet/outlet orientation).
Performance Attributes:
Multi-stage screw compression to progressively reduce moisture content.
Output solids with significantly reduced water content (common target ~50% moisture or lower depending on feed).
Widely used in organic solid waste dewatering and biomass material dewatering for volume reduction and handling efficiency.
Intended Applications (Typical, Not Specific to Hemp):
Solid waste and organic residues (tea leaves, herbal waste, pulp and paper wastes).
Agricultural byproducts / animal waste.
Industrial and municipal sludges that require mechanical dewatering.
Important Clarification:
There is no clear evidence in available documentation that CTYZ screw press dehydrators are designed specifically for solvent recovery (e.g., ethanol recovery) or hemp cannabinoid extraction post-solvent wash (solvent-based cannabis extraction). The listed applications are general biomass and waste dewatering rather than solvent processing.
2. Screw Presses in Solvent Recovery and Hemp CBD Processing (Contextual Industry Info)
Although the CTYZ line itself does not appear engineered for solvent recovery, specialized screw presses do exist for solvent recovery in the cannabis/hemp extraction space:
Industry Example:
EP Screw Press for Solvent Recovery (general industry product)
Designed with pressure-tight enclosed chamber capable of holding back-pressure (up to ~60 PSI).
Wetted surfaces typically fabricated in 304/316 stainless steel for sanitary and corrosion resistance.
Explosion-proof motors and controls to comply with solvent-handling safety requirements.
Configurable screen cages and back pressure mechanisms to control dryness of output solids.
These are specifically applied in hemp and cannabis biomass solvent recovery and dewatering following chemical extraction processes.
How Screw Presses Are Used in Hemp Extraction:
After ethanol or hydrocarbon extraction, a screw press may be used to separate spent biomass solids from solvent-laden extract, recovering additional solvent that would otherwise be lost.
Presses with controlled back pressure help squeeze out free solvent from spent biomass prior to thermal or vacuum evaporation/recovery steps in the extraction facility.
Key Distinctions for Solvent-Recovery-Grade Presses:
Must meet explosion-proof electrical and control standards because of flammable vapors.
Must use pressure-tight seals to safely contain solvents.
Stainless steel or other corrosion-resistant construction for compliance with food/pharma/chemical regulations.
3. Summary: CTYZ vs. Industry Screw Press for Hemp Processing
| Feature / Capability | CTYZ Screw Press | Hemp Solvent Recovery Screw Press |
|---|---|---|
| Primary Mechanism | Mechanical dewatering | Mechanical dewatering + solvent expulsion |
| Safety for Solvent Use | Not indicated | Designed with explosion-proof and pressure-tight construction |
| Typical Application | High-fiber biomass dewatering | Hemp extraction solvent recovery & biomass separation |
| Material Contact Construction | Often 304 SS (varies) | 304/316 SS with sealed system required |
| Certified for Solvent Handling | Not documented | Required / documented for explosion-proof environments |
4. Recommendation for Hemp/Solvent Applications
If your project is hemp processing with solvent recovery, be advised:
Seek equipment engineered for solvent contact and explosive atmospheres (Class I Division standards etc.).
CTYZ models are more suited to solid biomass dewatering and general waste processing rather than ethanol or hydrocarbon solvent recovery without significant modification.
Evaluate industrial screw presses with pressure-tight housings and certified explosion-proof motors designed for solvent use, such as those documented for the cannabis/hemp industry.
If your company wants to establish a business relationship with us, please briefly describe the cooperation intention and send an email to：chuantaiscrewpress@gmail.com
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