Grain rice destoner

Types of Grain Rice Destoners

A grain rice destoner is an agricultural processing machine used to remove stones from grain. There are three common types of rice destoners for grains: the air flow-type, the oscillating sieve-type, and a combination of the two. Each type works on different principles and has its advantages.

• Air Flow Grain Destoner

  An air flow grain destoner uses vertical air streams to separate unwanted materials like stones, metal pieces, and other heavy impurities. It works on the principle of specific gravity differences and relies on air blowers or fans to create upward moving air currents. The material passes through a screen, called a separation deck, when the air column pushes light materials like grain and flour upwards. Heavier objects like stones drop down and exit through a separate outlet. Airflow grain destoners are usually compact, mechanical, and electrically operated.

• Oscillating Sieve Grain Destoner

  An oscillating sieve grain destoner separates unwanted objects from grains by oscillating screens. The separator has multiple screens with different hole sizes. When the material moves across the screens, small-sized impurities like dust and sand fall through while bigger objects like stones do not. The oscillating sieve works on the principles of size and shape differences. These grain sieves may have separate decks or be incorporated into a multi-deck separator.

• Air Flow and Oscillating Sieve Combination

  A combination air flow and oscillating sieve destoner uses the advantages of both methods. It has a screen deck and uses air pressure to separate stones and other heavier impurities. Grain air flow oscillating sieve destoners are popular because they give better separation efficiency and product quality. They remove a wide range of impurities, boosting the final product quality. Operators can adjust parameters like air velocity and screen oscillation frequency to fine-tune the separation process.

Specifications and maintenance of grain rice destoners

Generally, the specifications of stone remover machines vary according to the type and brand. Hence, here are common grain rice destoner specifications one should know.

• Capacity: The ability of a rice destoner to handle a particular amount or volume of rice, typically given in tons per hour or tons per day. For example, a great capacity can help a big-scale grain processing factory save a lot of time and manpower.
• Power Requirement: A machine's power source requirement to function fully, which might vary from an electric motor to a diesel engine, depends on the working environment and purpose of use.
• Energy Consumption: A machine's energy use in kilowatt-hours (kWh) when processing a grain of a specific mass, such as 200 kg of grains per hour.
• Operation Noise: The operating sound level of a machine, which is often measured in dB (decibels). High noise levels can lead to occupational health hazards and, therefore, require the mandatory use of ear protective equipment.
• Size: The overall dimensions of a machine, such as length, width, and height, that determine the space needed for its installation.
• Weight: A machine's weight is usually measured in kilograms or tons, determining the machine's solidity and stability during operation.
• Discharge Method: Machine-discharged food products include rice, stones of various sizes, and other foreign materials. The methods include manual, belt conveyor, pneumatic pipeline, and others.

It is crucial to keep the rice destoner in excellent condition for it to work well and last long. Here are a few simple maintenance suggestions for a grain rice destoner.

• Perform a thorough machine inspection at least once every two weeks. The inspection should include, but should not be limited to, the engine, belts, bearings, and screens.
• Lubricate the moving components of the rice destoner to minimize wear and tear from friction, increase operational efficiency, and reduce energy consumption. Lubricating oil, grease, or other recognized lubricants should apply.
• Keep the machine and its work environment clean. Observe the grain rice destoner for food residue, dust, and dirt, and clean it promptly with a vacuum or wash. A clean machine operates better and lasts longer.
• Align and tighten the fasteners of the vibrating stone remover to prevent loosening or misalignment during high-frequency vibrations, which can cause equipment damage.
• For electrical drive machines, check the electrical connection wires frequently, looking out for loose or frayed sections. Cover the motor in time when it rains to prevent water from seeping into it.
• Find the right balance between feeding speed and the processing capacity of the rice destoner to avoid equipment jitter, noise, and damage from overloading.
• Seek the manufacturer's advice and carry out periodic professional maintenance of key parts, like replacing the vibrating sieves with new ones if they have worn out badly.

Usage scenarios of grain rice destoners

The grain rice destoner is used in various industries involved in processing grains, rice, and other agricultural products. Here are some of the usage scenarios for a grain destoner.

• Grain Milling Industry

  The primary use of a grain stone separator is in the grain milling industry. It removes stones and other inert materials from grains before they are ground into flour. Processing grains free of stones improves the milling equipment's efficiency. It also produces quality flour.

• Rice Processing Plants

  In rice processing plants, Grain rice destoners separate unwanted stones from harvested rice. It is an essential step in producing clean and quality rice that is ready for cooking and human consumption.

• Seed Cleaning Facilities

  Seed cleaning facilities also use grain destoners. The machines help remove stones from various seeds like vegetable, flower, and fruit seeds. Cleaning seeds from stones improves the purity and quality of the seeds.

• Animal Feed Production

  Some animal feed may contain grains with stones and other contaminants. The grain destoner can remove these stones to improve the safety and quality of the feed produced.

• Agricultural Cooperatives

  Agricultural cooperatives may have grain destoners to assist local farmers during post-harvest processing. The farmers sort and clean their harvested grains and help improve the quality.

• Food Processing Companies

  Food processing companies may use the grain destoner to process products like flour, cereals, and snacks. The machines help ensure high-quality raw materials by removing stones.

• Specialized Grain Processing

  Some specialized grain processing requires the processing grains to be stone-free. Some examples are a brewery or malt house. The institutions may also use a grain destoner to remove the stones and avoid damaging their processing equipment.

How to choose a grain rice destoner

Industrial rice grain destoners are available in various specifications and models to meet different needs. When deciding on a suitable rice stone remover, consider the following factors:

• Production capacity

  Industrial-grade rice destoners have varying production capacities of about 2,000 kg/hour to 5,000 kg/hour. A small-scale rice destoner can handle more than 1,000 kg/day, while commercial machines can process up to 30 tons of rice per day. The amount of rice that can be processed will depend on the machine's specifications and the rice's physical properties. Be sure to choose a rice stone remover that can handle the daily output of the rice milling factory.

• Separation accuracy

  The main purpose of getting a rice stone separator is to improve the quality of the rice by removing all stones and other impurities. A good destoner should have accurate separation capabilities with efficient classifiers, ensuring that all types of impurities, including stones, are removed.

• Operation

  A modern rice grain destoner is an intelligent machine that can perform several operations automatically. Some key features include automatic feeding, programmable logic controller (PLC) control, computerized operations, and automatic discharge of the separated stones. Consider all the various automatic features and choose a machine with the suitable level of automation for rice milling operation.

• Airflow system

  The rice destoner's air and gravity separation system may vary across machines. Select a grain destoner that has a powerful and efficient air circulation system, such as an air compressor and fan, that can separate impurities thoroughly. Additionally, the option to adjust the air volume and pressure is essential for customizing the separation process to suit different rice types.

• Construction and durability

  The materials used to manufacture the stone-removing machine and its overall build quality will determine how long it lasts. Consider a machine with stainless steel or other corrosion-resistant material, ensuring a long and reliable service life. Additionally, some machines have anti-vibration technology that minimizes the vibrations transferring to the rice grains, reducing breakages and improving durability.

• Noise level

  Rice destoners can make significant noise while operating at optimal levels. Check the machine's noise rating in decibels (dB) and consider choosing a model with a more efficient motor that has a noise-canceling design.

Grain rice destoner Q&A

Q1 Are grain destoners used for specific types of grains?

A1 No, grain rice destoners can be used for any type of grain. However, the design and size of the machine may vary depending the on the specific grain characteristic. For instance, larger grains such as corn may require larger separation channels than the ones used for smaller grains such as rice.

Q2 How much energy does a grain destoner use?

A2 The energy usage of a grain destoner depends on its size and capacity, the type of separation mechanisms used, the processing time and the material being processed. Grain rice destoners usually have power ratings ranging from 0.5kw to 5kw. The actual energy usage is usually calculated in kWh. A small scale grain destoner used to process rice will use less energy than large industrial scale ones that process larger quantities of grains.

Q3 Can a grain destoner be used at home?

A3 No, a grain rice destoner is not suitable for home use. The machines are too big and complex for home use. Furthermore, the volumes of grain processed in industrial settings are too large for home use. The most practical methods of removing stones and debris at home is manual sorting.

Q4 Does a grain destoner improve the quality of grain?

A4 Yes, one of the main purposes of a grain rice destoner is to improve the quality. By separating stones, debris, and other foreign materials, grain destoners help to enhance the purity, integrity, and overall quality of the grains, which is important for downstream processing and consumption.