The scraper-type evaporator uses rotating scrapers to form a film for concentration. The feed solution is heated for an extremely short time. Designed specifically for high-viscosity, crystallization-prone, and heat-sensitive materials, it prevents sticking to the walls and coking, and offers high concentration efficiency.
Description
Scraper-Type Concentrator | Low-Temperature Concentration Equipment for Forced Film Formation of High-Viscosity, Heat-Sensitive Materials
💡 The scraper-type concentrator is a forced-film vacuum concentration device that uses rotating scrapers to force the material into a film, enabling ultra-fast, low-temperature evaporation. It specifically addresses the challenges of concentrating high-viscosity, scale-prone, crystallization-prone, and heat-sensitive materials, and is widely used in the pharmaceutical, botanical extraction, food, and health supplement industries for the purification of high-concentration extracts, syrups, and colloidal materials in the pharmaceutical, botanical extraction, and food and health supplement industries.
I. Product Overview
Scraper-type thickeners belong toForced-Film Vacuum Concentration Equipment, which uses internal rotating scrapers to spread the feed liquid into a uniform film along the inner wall of the heating cylinder, enabling rapid evaporation at low temperatures. The equipment is particularly suitable for concentrating materials that are highly viscous, prone to scaling and crystallization, and extremely heat-sensitive. Due to the short heating time and low risk of coking, it is widely used in the pharmaceutical, food, health supplement, and plant extract industries for the concentration of high-concentration extracts, syrups, and colloidal materials.
II. Structural Configuration Description
The equipment consists primarily of a heating cylinder, a rotating scraper assembly, a drive system, a feed distributor, a separation chamber, a condenser, a receiving tank, a vacuum system, and a control system. The entire unit is hermetically sealed and hygienic, features a stable structure, and is suitable for GMP production:
✅ Rotating scraper forced film formation structure
The material forms a uniform film on the inner wall of the cylinder and remains there for only a very short time, thereby preventing material buildup, sticking to the walls, and coking at the source.
✅ Jacket-type Constant-Temperature Heating System
The cylinder jacket provides uniform heating throughout, ensuring high heat transfer efficiency and precise temperature control, which guarantees stable evaporation under low-temperature conditions.
✅ Customizable scraper design
Sliding or elastic scrapers can be selected based on material viscosity and crystallization characteristics to meet the production requirements of various complex materials.
✅ High-Efficiency Gas-Liquid Separation System
The separation chamber has been structurally optimized to ensure thorough gas-liquid separation, eliminate material loss, achieve high solvent recovery rates, and reduce production costs.
✅ Sanitary-grade sealed design
The entire unit is mirror-polished with no hard-to-clean areas and supports CIP (Clean-in-Place) cleaning, meeting clean production standards.
III. Key Features
✅ Forced film evaporation, providing excellent material protection
The material is heated for an extremely short time in a vacuum, low-temperature environment, which maximizes the retention of the active ingredients in heat-sensitive materials and prevents oxidation or charring.
✅ Highly adaptable to complex operating conditions
Specifically designed for high-viscosity, crystallizing, and scaling materials, it completely eliminates the problems of material sticking to the walls, blockages, and coking commonly found in traditional concentration equipment.
✅ High concentration ratio, excellent results
It enables the one-step concentration and shaping of high-concentration extracts and colloidal materials, achieving a high concentration ratio and significantly improving material utilization.
✅ Meets hygiene standards and is suitable for high-end production
Made of 304/316L stainless steel, the entire machine is constructed to food-grade standards and fully complies with GMP and food safety production regulations.
✅ Flexible operation, compatible with a variety of production modes
With its compact design and stable operation, it can meet the dual requirements of both continuous mass production and intermittent small-batch production.
IV. Scope of Application
Widely used in the pharmaceutical, herbal extraction, food, and health supplement industries, specifically forHigh-viscosity extracts, syrups, colloidal materials, protein solutions, heat-sensitive solutions, and materials prone to crystallizationProvides stable and efficient low-temperature vacuum concentration solutions.
V. Technical Specifications
| Equipment Materials | 304/316L Food-Grade Stainless Steel |
| Film Formation Method | Rotary Scraper Forced Film Formation |
| Working Methods | Vacuum-Assisted Low-Temperature Evaporation and Concentration |
| Scraper Type | Sliding / Flexible (optional) |
| Throughput | Full range of custom, non-standard designs to suit all production capacities |
| Control Method | Manual control / PLC fully automatic control (optional) |
| Suitable Materials | Material systems that are highly viscous, heat-sensitive, prone to crystallization, and prone to scaling |
VI. Service Commitment
We provide end-to-end, one-stop services: equipment selection and matching, customized process solutions, complete unit manufacturing, on-site installation and commissioning, operator training, and lifetime after-sales maintenance and support. We support custom solutions tailored to various operating conditions, offer nationwide shipping and delivery, and provide rapid on-site surveys and repair services in Chongqing.
🔗 Recommended Compatible Devices
Complete Production Line Configuration for the Concentration Line:
✅ Extraction of raw materials from the front end:Extraction equipment
✅ Online Equipment Cleaning:CIP (Clean-in-Place) System
✅ Purification and Impurity Removal from Feed Solutions:Separation and Purification Equipment
