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Help CenterCaustic Soda Equipment With Fully Automatic Control, Skid Mounted Design Plug-Play, Salt Purity Requirement Only NACL>89%, PLC Monitor
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Tianjin ZhuoLiNeng (ZLN) Technology Co., Ltd. is a manufacturer based in Tianjin, China, specializing in process equipment for the chlor-alkali industry. This caustic soda equipment offers a skid-mounted plug-and-play design, fully automatic control, and PLC-based monitoring to help customers build a caustic soda production unit with less site work and more stable operation. Its key cost-saving feature is the low salt purity requirement of only NaCl > 89%. That means ordinary industrial salt can be accepted, making raw material sourcing easier and more economical.
Product Overview
The unit is an integrated caustic soda production line assembled on compact skids. It is designed around the electrolysis of brine to produce caustic soda solution in a continuous process. The PLC monitoring system controls and displays key operational parameters, including feed flow, system temperature, pressure, liquid level and running status. Because the complete process section is pre-assembled, installation on site is mainly a matter of connecting external utilities and connecting the skids together.
Main Features
Fully automatic operation: The control system is designed to run the process with minimal manual intervention. It monitors the status of pumps, valves, heaters and other equipment, and initiates safe start and stop sequences.
PLC monitoring: A programmable logic controller provides real-time process visualization, alarm indication and data logging. An operator interface, available upon request, can be configured according to the customer's language and process requirements.
Skid-mounted plug-and-play design: Process modules, piping and instruments are gathered on a base frame. This lowers installation cost and shortens project schedule compared with traditional site-erected solutions.
Low salt purity requirement: The system is designed for salt with a sodium chloride content higher than 89%, so customers have more freedom in choosing lower-cost raw salt.
Flexible configuration: Capacity and auxiliary equipment can be customized. Additional brine treatment, salt storage, pump groups and control options are available upon request.
Corrosion-resistant layout: Wetted parts are selected for use with brine and alkaline medium. Final material selection can be adapted to the customer's site environment and process conditions.
Process Flow
The equipment follows a compact process concept. Raw salt is dissolved to form brine, then sent to the electrolysis section. The PLC controls the feed rate according to the required production load, while maintaining the critical parameters inside the design range. Caustic soda solution is collected from the electrolysis outlet and delivered to the downstream storage or use point. The skid includes the necessary valves, instruments, local control station and electrical junction boxes to support autonomous operation.
Technical Specifications
| Design type | Skid-mounted, plug-and-play |
| Control mode | Fully automatic PLC monitoring |
| Salt feed requirement | NaCl > 89% |
| Raw material | Salt dissolved as brine |
| Operation mode | Continuous |
| Product output | Caustic soda solution |
| Capacity | Customizable according to project design |
| Installation condition | Utility connection at site |
Benefits for Buyers
Lower salt cost: A salt purity requirement of merely NaCl > 89% lets buyers use industrial salt that is more available and usually less expensive than high purity refined salt.
Faster project installation: The skid-mounted design reduces on-site piping and scaffolding work. This is beneficial for projects with limited civil work capacity or strict schedule.
Reduced labor requirement: Fully automatic control and PLC monitoring help the customer manage the equipment with a smaller operating team.
Stable process monitoring: Real-time monitoring allows early detection of abnormal conditions, lowers production risk and protects downstream equipment.
Less site footprint: Compact skids are easier to arrange in industrial plants where space is limited.
Application Areas
Caustic soda is widely used in industries such as pulp and paper, water treatment, soap and detergent manufacturing, alumina production, textile processing, food processing, and general chemical synthesis. This equipment can be applied as an on-site caustic soda supply unit for small and medium capacity projects. It can also be combined with existing utility systems in a chemical plant.
Frequently Asked Questions
Does this caustic soda equipment really accept salt with only 89% purity?
Yes. The system is designed for salt with NaCl content higher than 89%. If the customer uses higher purity salt, the unit can also work; the control parameters can be adjusted accordingly.What exactly does skid-mounted plug-and-play mean?
The main equipment is already assembled on skid frames, with piping, instruments and control wiring arranged in a compact module. On site, the customer connects external power, water, drain, brine feed, and product output lines, then the equipment is ready for commissioning.How does the PLC monitor the production process?
The PLC collects signals from pressure, temperature, liquid level, flow and running status indicators. It compares these signals with set values and shows the process condition on the operator interface. If a value is abnormal, an alarm is activated.Can this system be built for different output capacities?
Yes. The capacity is customizable. Customers should tell us their required daily or yearly caustic soda output, and our engineers will size the skid and related equipment accordingly.What kind of raw salt is recommended?
Industrial salt with sodium chloride content above 89% is acceptable. If the raw salt contains unusual impurities, additional brine treatment components can be added to help protect the electrolysis process.Do you provide installation supervision or operator training?
Installation guidance, commissioning support and operation training are available upon request. Because project scope varies, these services can be arranged in the technical quotation stage.Can the PLC system communicate with an existing plant control room?
Communication protocols and integration methods can be discussed. The control system can be supplied with the necessary output modules or interfaces according to the customer's existing automation platform.What is the delivery situation from Tianjin port?
We are located in Tianjin, China, and can arrange sea shipment from Tianjin Port to international destinations. Packing and skid handling details can be confirmed for each order.
Company Background and Support
Tianjin ZhuoLiNeng (ZLN) Technology Co., Ltd. is an quality-managed manufacturer and exporter. We are located in Tianjin, China, which gives us convenient access to Tianjin Port for sea freight deliveries to many regions. Our markets include North America, South America, Europe, Southeast Asia, Africa, Oceania, the Middle East and the domestic Chinese market. We focus on practical engineering, flexible customization and responsive after-sales communication. Tell us your target capacity, salt source and utility conditions, and we will help you choose the right skid-mounted caustic soda solution.
For more information about capacities, options and configuration details, contact our sales engineering team. We will send a preliminary proposal based on your production targets and site conditions.
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