Salt Test Sieve

What is a salt test sieve?

Salt test sieve is a standardized sieving tool, usually made of stainless steel or corrosion-resistant materials, used to determine the particle size distribution of salt particles. It grades salt particles based on the size of the sieve holes and is often used in quality control, process optimization or research and development. The pore size of the sieve ranges from a few microns (such as 20µm) to a few millimeters (such as 4mm), depending on the test requirements.

Video of salt test sieve

What is the function of salt test sieve?

① Sieving salt particles (particle grading)

Purpose: Grading salt according to particle size, such as separating coarse salt from fine salt and ultrafine salt.

Application areas: Commonly used in food processing, chemical production, and water treatment industries to ensure that the particle size of salt meets the requirements for subsequent use.

② Removing impurities (impurity removal)

Purpose: Remove impurities, foreign matter or agglomerates in salt to improve the purity and quality of salt.

Application areas: In the chemical industry and food industry, remove impurities and unqualified particles to ensure product quality.

③ Detect the humidity of salt

Purpose: Test the humidity of salt by screening to prevent salt from agglomerating and maintain its fluidity.

Application: During salt production, storage and transportation, avoid salt agglomeration or difficulty in flowing due to excessive humidity.

What are the types of salt test sieves?

Classification standard	Type	Features	Applicable scenarios
Screen material	Wire mesh screen	High precision, wear resistance, easy to clean, corrosion resistance	Most salt samples, especially fine salt
	Nylon screen	High wear resistance	Suitable for high hardness salt particles
	Perforated plate screen	High strength, not easy to deform, corrosion resistance	Salt with larger particle size, coarse salt, industrial salt
Screen shape	Round screen	Strong versatility	Most salt samples
	Square screen	Specific standard requirements	Scenarios with specific standard requirements such as cement fineness detection
Application field	Food grade salt test sieve	Comply with food hygiene standards	Edible salt production, food processing
	Industrial grade salt test sieve	Strong corrosion resistance	Industrial salt production, chemical industry
	Pharmacopoeia sieve	Comply with pharmacopoeia standards	Drug production, pharmaceutical industry

Structure of salt test sieve

Sieve frame: round or square frame, with a common diameter of 200mm or 300mm, mostly made of stainless steel, resistant to salt corrosion.

Screen: made of woven or punched wire, with apertures that meet international standards (such as ISO 3310 or ASTM E11).

Number of layers: single or multiple layers stacked to form a sieve group, used to classify multiple particle sizes at one time.

What are the advantages of salt test sieve?

1. Prevent caking and control moisture: Salt test sieve uses vibration to break up caking and ensure that salt particles can pass through the sieve smoothly. During the wet salt screening process, salt test sieve uses a sealed design to reduce water evaporation and avoid moisture.

2. Ensure uniform distribution of salt particles: By reasonably designing the sieve aperture and vibration frequency,  salt test sieve uses a refined sieve and a multi-stage screening system to achieve more accurate particle classification and ensure product consistency and quality.

3. Prevent sample loss: During the screening process, fine salt particles may be lost through the gap, or the sample may overflow due to improper operation. The edge of the sieve frame of the salt test sieve is processed with high precision, and a collection tray is installed at the bottom to capture fine powder.

4. Sample representativeness problem: The particle size distribution of the salt sample may be uneven, and improper sampling will affect the test results. Salt test sieve adopts a scientific sampling method to ensure the representativeness of the salt sample, conduct multiple tests, take the average value, and reduce sampling errors.

Technical specifications of salt test sieve

Parameters	Specifications	Parameters	Specifications
Sieve frame diameter	200mm,300mm	Sieve mesh aperture	0.02mm-10mm
Sieve frame material	stainless steel	Vibration frequency	50Hz-60Hz
Vibration amplitude	1 mm-3 mm	Power supply requirements	220V/380V, 50/60 Hz
Equipment weight	10kg-30kg	Working temperature	-10°C to +50°C
Noise level	<70dB	Automation control	Optional PLC control system
Maintenance cycle	every 6 months or 500 hours	Equipment life	5-10 years

Recommended mesh number of salt test sieve

Application scenario	Recommended mesh number	Particle size range
Food grade salt	10-60 mesh	2.00mm-0.25mm
Industrial grade salt	8-50 mesh	2.36mm-0.3 0mm
Water treatment salt	8-30 mesh	2.36mm-0.60mm
Road deicing salt	4-16 mesh	4.75mm-1.18mm
Laboratory research	10-200 mesh	2.00mm-0.075mm
Agricultural salt	10-40 mesh	2.00mm-0.425mm
Pharmaceutical salt	20-60 mesh	0.85mm-0.25mm
Feed salt	10-40 mesh	2.00mm-0.425mm

Application of salt test sieve

Salt test sieve is widely used in food, chemical, pharmaceutical, water treatment and other industries, and plays an important screening role. Through screening, salt can be graded, impurities removed and finely processed according to particle size, purity requirements, etc., thereby improving production efficiency, ensuring product quality, and meeting industry standards.

Suggestions for the selection of salt test sieve

1. Clear standards: Prioritize industry specifications (such as food-grade salt must comply with GB/T 5461).

2. Multi-layer combination: Complex samples can be stacked with multiple mesh sieves (such as top layer 20 mesh + middle layer 80 mesh + bottom layer 200 mesh).

3. Equipment adaptation: The efficiency of the vibrating screen affects the screening results, and the time needs to be adjusted according to the equipment power.

4. Verification test: Use a standard sample to verify the accuracy of the sieve before first use.

Actual case recommendations for salt test sieves

Case 1: Salt quality inspection

①The mesh size is 20-40-60-100 mesh②The result is >850µm accounts for 5%, 150-850µm accounts for 90%, and <150µm accounts for 5%, which meets the standard.

Case 2: Industrial salt classification

①The mesh size is 10-20-40 mesh②The result is >2mm returned for crushing, and 0.5-2mm is used for chemical industry.

Case 3: Ultrafine seasoning salt

①The mesh size is 100-200-325 mesh②The result is <75µm accounts for 95%, which meets the requirements of instant dissolution.

Supplier of salt test sieves

Dahan Machinery is a company specializing in the production of screening equipment. When purchasing a salt test sieve, you should choose the appropriate model and mesh size based on factors such as the type of salt, particle size range, test volume and application scenario. You can consult the sales staff customer service of Dahan Machinery to understand the characteristics and applicable scope of different models of salt test sieves in order to make a more appropriate choice.