Seed clarity analysis

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Seed clarity analysis
The key to the clarity analysis is to distinguish net seeds, other plant seeds, and inanimate impurities. Net Seed: Net Seed refers to the species described by the applicant or the major species discovered during the survey and includes all varieties and varieties of the species. Seeds with the following structures, i.e., immature, thin, wrinkled, diseased, or overgrowth, should be identified as the species to be analyzed and should be treated as net seeds but have become sclerotia Except for smut group or worms. 1. Complete seed units: including achenes, similar fruits, fruit and florets. There is an obvious caryopsis in the small flowers of grasses, which contain endosperm or naked caryopsis are net seeds for the complete seed unit. 2. Damaged seed units larger than half the original size are included in the net seed. 3. The ryegrass, fescue and icegrass in the forage grasses contain a caryopsis floret, and the caryopsis is measured from the base of the rachis axis and is equal to or greater than the net seed of the inner scale. However, a flower containing one caryopsis and the length of the caryopsis less than 1/3 of the length of the inner scale is innocuous. Other plant seeds: Other plant seeds include seed units of any plant species other than net seeds, other crops, other pastures, and weed seeds. Such as the purple foxtail seed in the first. 3. Inanimate impurities: Inanimate impurities include the following seed units, other impurities, and plant structures other than net seeds and other plant seeds: Seed units that are clearly free of seeds; grasses such as ryegrass, fescue, and ice Grass Ying; The fruit has not reached the florets with a length of 1/3 of the internal scale; The broken seeds are less than or equal to half the original size; Fragments of the unit. Seeds of leguminous and cruciferous families with fully exfoliated seed coats; those belonging to net seeds that do not refer to net seed are not mentioned in the net seed definition; sterile flowers, glumes, internal and external scales, scale shells, stems, and leaves removed , Cone scales, fruit wings, bark fragments, flowers, nematodes lean, fungal body (ergot, sclerotia, smut group), soil, sand, gravel, and other non-seed materials; All substances remaining in the light fraction (except for other plant seeds) when the separation was performed.
Seed clarity analysis occupies a very important position in the identification of seed quality. The key to the clarity analysis is to distinguish net seeds, other plant seeds and impurities. Usually we have specific instruments for the analysis of seed clarity, such as the primary clarity. Analysis, we can use the seed blower, which uses the different particle floating speed in the air to classify the seed, sometimes called the seed wind analyzer. Then a more meticulous analysis of the degree of clarity will rely on the Seed Cleanness Workbench. The degree of seed's netity can only be put on the market if it reaches a certain standard. With the constant acceleration of international processes in recent years, China's seed standards have become more stringent, and the requirements for seed purity, seed weight, and seed germination rate have become increasingly stringent.

Screw Conveyor

Quantum has extensive experience in the correct selection and design of screw conveyors, screw dischargers, hopper unloading and screw metering systems. The above list is typical of the type of equipment we have supplied to a variety of industries for varying applications. Whether your process and application requires mixing during conveying, dewatering, batch metering interlocked to weigh system or conventional transfer conveying we have the experience and standard equipment to ensure you have a reliable trouble free installation.


QUANTUM designs and supplies a complete range of Screw Conveyors.

These types include:

• Conveying and transfer conveyors:

• Inclined Screw conveyor

• Horizontal Screw conveyors

• Storage Hopper Discharging & Live Bottom Bin Discharging systems

• Hopper Discharge

• Dosing and metering screw dischargers

• Twin Shafted Screw Conveyors

• Dewatering and compacting screw conveyors

• Batch metering screw feeders with self-emptying storage hoppers.

• Shaftless Screw Conveyors (Auger Covneyors)


Quantum have specialized screw conveying systems installed in chemical, mineral as well as the food and beverage industries. Our designs cater for stainless steel, mild steel with liners and special steel for abrasive materials, through to fully polished, sanitary clean down applications requiring full clean out and knock down construction. Materials handled can be micro powder to granular and lumps. The selection and type of conveyor recommended is critically dependent on the material to be conveyed.


Conveying and Transfer Conveyors:

Quantum manufacture a standard range of screw conveyors incorporating intermediate center bearings or center less screw conveying for difficult sticky materials. Length of conveyors and size of conveyor depends on capacity and material characteristics.


Inclined and vertical conveying:

Quantum have designed and installed both vertical and inclined screw conveyor systems. It is recommended to design all incline conveyors without using an intermediate bearing, if possible and to keep incline to less than 75o for optimum efficiency. Whether your application requires a tubular inclined conveyor or trough conveyor, Quantum will select the most suitable conveyor for your application that is suited to the material characteristics, environment, length conveyed and your specific needs such as clean down and residue. Efficiency of vertical conveyors can be as little as 10% and generally require specific design considerations; the nature of material and feed method. Our engineers can assist with the best and most suited conveyor for your needs.


Horizontal transfer conveyors

A single conveyor can incorporate several hanger bearings over length in access of 100m. However length is very much dependent on the nature and characteristics of the material and the conveying capacity. Some materials cannot be successfully conveyed using any hanger bearings, whilst other materials will accommodate several hanger bearings trouble free. We has a general rule of maximum conveyor percentage full by volume be no more than 40% when using hanger bearings with no more that 1mm/m deflection of center pipe. Quantum design all conveyors for full load start up with much consideration given to conveyor speed to eliminate excessive wear. All our conveyors are designed with gland seal packing to protect spherical bearings.


Hopper and Live Bottom Bin dischargers

Our hopper and Bin dischargers are used when non free flowing materials need to be discharged from hoppers or storage bins. Size and quantity of screws depend on the hopper configuration and the material characteristics. Using multiple screw dischargers can increase volume of hoppers whilst ensuring a positive discharge of material at a controlled out feed. Each screw can be independently powered or interlocked with one or two drive assemblies depending on loading and capacity of the system.

Generally installed with slow speed counter rotating screw flights that can be over locked for maximum discharging capabilities they are variable pitch or variable flight diameters to ensure even material discharge across hopper.


Heating and Cooling Jackets

All Quantum Screw Conveyors can be fitted with heating and cooling jackets utilizing steam, thermal liquids, refrigerant, water or brine. Heating or cooling can be designed by our process engineers who will recommend the most suitable size and type of conveyor for your production and needs.


Clean Design

Quantum is familiar with the specific needs of the food and beverage industries. All our Screw Conveyors can be fitted with CIP spray balls and manifolds, with quick knockdown in mind to ensure complete clean-down where required. Screw Conveyors can be constructed from mild steel, 304 or 316 stainless steel, depending on the material being conveyed. Surface finish will be provided to suit specific requirements. All components such as IP ratings of electric motors and switches are selected with these specific requirements in mind to ensure compatibility with your operating procedures.


After sales support

Quantum can provide a customized service contract using experienced technicians with many years` experience in servicing and troubleshooting Screw Conveyors in all states. This service ensures your equipment is functioning to its optimum capabilities and reduces down time due to parts replacement and potential damage. Our technicians have standard customer maintenance, checking and reporting procedures.

Screw Conveyor,Tubular Screw Conveyor,Single Shaft Screw Conveyor,Twin Shafted Auger Conveyor

Quantum Conveying Systems Yangzhou Co.,Ltd. , https://www.ycectech.com