Feiyiya Inclined Plate Clarifiers Use Gravity & Innovative Engineering
A gravity clarifier is the most economical method of removing solids from liquids, using natural gravity as the source of energy and it is free. A clarifier simply provides a non-turbulent zone where heavier than liquid solids, suspended by turbulence, are given sufficient time to settle to a quiescent surface. The HEI inclined plate clarifiers are compact units with multiple layers of settling area utilizing less than 25% of the floor space required by conventional clarifiers.
Principle of Clarifiers
A particle carried forward by the velocity of the liquid flow must settle at a rate that allows it to reach the bottom before passing through the clarifer. Thus, particles beginning at a point [a" must traverse some route lying between ab and ab` in order to avoid being carried over the outlet.
If V is the horizontal velocity of the liquid, S the solids particle vertical settling velocity, L the length of the settling device, and D its depth, then particles entering at point A will settle to the bottom of the device only if V does not exceed: S(L/D)Since Vmax / S = L / D then, Vmax = S (L / D)
Inclined plate clarifier, Lanmei inclined plate clarifier, Inclined Tube Settler,High-Efficiency Inclined Tube Wuxi Feiyiya Environmental Protection Technology Co., Ltd. , https://www.fefinegrille.com
Product Description
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The automatic belt dryer equipment are widely used in the processing of dehydrated vegetables and fruits, snack food, herbs, chemicals and many other industrial products such as synthetic rubber, polymers and etc. The belt dryer uses air to transfer heat and remove moisture as the product moves through multiple temperature zones on a conveyor bed. By adding rotary feeding device, the evenly spreading can be realized. And as there are no turnovers or drops during drying, the balanced drying can be ensured. With the automatic mixer and scraper feed the materials smoothly to the following process.
 
CHARACTERISTIC
1. Microwave Drying Machine is made of high-quality 304# stainless steel. Fully meet with medicine machinery requirements.
2.Low-temperature drying and sterilization, which can keep original flavor and good color sense.
3.Penetration:Tunnel microwave drying and sterilizing machine adopts radiation way to transfere energy and it heat wholly without any medium.
4.Heating evenly: microwave heating is in and outside of the material at the same time,the temperature difference is very small in and outside of the material.So it is more evenly when drying materials,and the heating efficiency is greatly increased.
5.High efficiency,low consumption and easy operation
6.No pollution,have heat insulating layer;fast heating,convenient to start and stop
7.The speed of mesh belt dryer could be controled
8.The temperature of box dryer and mesh belt dryer could be adjustable according to the buyer demands.
Application of dryer machine
 It is suitable for the material and product hot solidification and dry de-watering in the pharmaceutical, chemical, food, farming, side-product, aquatic product, light industries, heavy industries and others industries. Such as: raw material medicine, crude drug, prepared herbal medicine of Chinese traditional medicine, plaster, powder, particle, drinking agent, pill, packing bottle, pigment, dyestuff, de-watering vegetable, dried fruit piece, sausage, plastics, resin, electric component, baking varnish and etc .
FAQ:
1. Q: Please describe your warranty period.
   A: 15 months after the equipment is arrived at the destination port or 12 months after  the installation and commissioning of the equipment, whichever comes first.
2. Q: Do you provide on-site installation and commissioning?
  A: Yes, we do. If on request, we'll provide the guidance of on-site installation and commissioning. Usually one mechanical engineer and one electrical engineer to assist.
3. Q: How about the cost of on-site installation and commissioning guidance?
   A: The cost consists of round-trip air tickets, room and board expenses, service cost (labor cost), and site transportation (or directly provided by client), which shall be paid additionally.
4. Q: Are you a factory or a trading company?
   A: We are a professional manufacturer. We have a pilot plant for customers to do sample testing.Â
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 Why us?
 1.Pre-sale service:
1)MINGCHAO will provide production line design, quotation sheet, working sites video, machinery photos, sample testing(gold ore, tin ore , iron ore, tungsten processing in laboratory).Â
2)Welcome to visit us at any time, we will pick you up.
2.Sale service:
1)Keep clients updated when our company gets advance payment.Â
2)Confirm production details with clients.Â
3)Take photos and send all pictures to customers during production.
4)Inspection and testing the product before delivery;Â
5)Clients are welcome to inspect the equipment when the equipment are ready to delivery. We will arrange cars, hotels and translators for customers.
6)logistics service if needed.Â
3.After Sale service:
1)Provide foundation drawing to the clients for installation.Â
2)Besides, our engineers are available to help with installation and workers training.Â
3)Repairing and maintenance if any problem occur in the warranty.
4)Spare parts and wearing parts will be offered with production cost in 10 years.
 If you are interested in our hot air belt dryer, please contact us for more information, such as catalogue, video,etc.
 Welcome for your visiting.
 
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Therefore, the velocity at which a horizontal clarifying device may be operated successfully is directly proportional to its length and inversely proportional to its depth.
This analysis applies to multiple horizontal plate units also. The spacing between plates is usually a few inches as opposed to a depth of several feet in a horizontal tank; therefore, [settling-out" times are dramatically reduced. The flow must be non-turbulent to prevent settled solids from being re-entrained within the moving liquid. Small plate spacing and a large surface area permits laminar flow at higher velocities than large horizontal tanks would allow.
Horizontal clarifying devices become self-flushing if they are inclined at an angle which exceeds the angle of repose of the settled solids. In such cases, flow enters the lower end of the device where settling particles move to the floor eventually sliding back out the entrance. Clear effluent leaves the top of the device.
However, when the device is inclined, the furthest settling particles no longer fall through distance D but some longer distance D`. This new longer settling distance D` is related to D by the relation: D = D` cos Ø.
Theta [Ø" is the angle, the device is inclined to the horizontal plane. Thus settling distance is increased by the factor: 1/cos Ø In the case where Ø = 60º, 1/cos Ø = 2.
The maximum settling distance is twice the distance between the plates. It is apparent then that the lower the angle of inclination, the smaller the settling distance. However, the angle of inclination must exceed the angle of repose of the solids to be separated. The previous equation may be modified to express the cosine of an inclined plate clarifying system as:
Vmax = L / (D / cosØ) (s) = L·cosØ / D (s)
Inclined Plate Clarifiers
A reduction of the required floor space is acquired by diminishing the separation between the horizontal plates to a few inches and stacking the settling surfaces. Inclining the plates to provide self flushing, 45º for heavy particles and 60º for light particles, reduces the available horizontal projected area (effective settling area) by a factor equivalent to the cosine of the angle. The surface area diagram (below) graphically compares the floor space requirements of an HEI inclined plate clarifier with the equivalent horizontal projected settling area.
Settling Rate
The settling rate for a specific solids should be determined by standard laboratory tests. Light particles, such as metal hydroxides, usually require a design parameter of 0.25 – 0.50 gallons per minute per square foot of horizontal projected area. These low density solids require the inclined plates to be set at a 60º angle to induce the particles to slide down the plate. Heavier particles (such as sand that easily flow) will readily slide from plates set at a 45º angle.
Maximum flow rate of an inclined plate clarifier is based on the flow rate per unit of a horizontally projected surface area. Retention time in the clarifier is not a design criteria. However, attaining optimum performance requires the prudent design to recognize several additional, very important factors.