Chemical Gypsum Powder Production Line Manufacturer

• Certification: ISO 9001:2008
• Control Type: PLC Control
• Crushing Degree: Fine Grinding Machine
• Shipping Cost: Estimated freight per unit.: about shipping cost and estimated delivery time.
• Currency: US$
• Return&refunds: You can apply for a refund up to 30 days after receipt of the products.
• Model NO.: YR-V-20180919A
• Automatic Grade: Automatic
• Raw Material: Fgd Gypsum ,Phosphogypsum ,Natural Gypsum
• Output: 20000ton-500000ton/Year
• Technology: Hot Air Boling Furnace
• Advantages: Improve Quality , High Configuration
• Workers: 4-6person
• Fuel: Gas ,Diesel ,Coal , Oil
• Automtic: PLC Control
• Lab Equipment: Available
• Dust Collector: Water Dust Removal , Bag Dust Collector Ect.
• Mill Machine: Ramond Mill , Vertical Mill , Ball Mill
• Trademark: Yurui
• Origin: Shandong Province
• HS Code: 8474209000
• Production Capacity: 100

Product Description

 

                                      Raw material request
 

Main quality indexes of raw materials
CaSO4·2H2O content:	75% ~ 95%
Surface water content	≤ 18%
Crystal water content	18-20%
Capacity
15,000ton-400,000ton/year , based on 24hour/day ,300days/year
Fuel
Gas /coal /heavy oil/diesel
Electricity
380V/50HZ
Quality standard
Quality meets and exceeds the national standard of gypsum powder Construction gypsum national standard number GB 9776-88

 

 

                       
Mainly Equipment introduce 

1.Crusher system

  The crushing system can crush large ore from mine mining to an average granularity of 25 mm by one time, is an ideal version of traditional ways of two and three stage crushing.

   Simplifying the technological process, saving construction investment. Large feeding size: the largest feed particle size can be 0.5-0.7 m.

  Discharging granularity: 3-30 mm, can be adjusted.
    
  Process simplified, the original secondary or tertiary crushing can be reduced to one stage.

  Low operating costs: system with small power, the production cost greatly reduced.
   
  The coarse crushing system is mainly composed of storage hopper, vibrating feeder, single section crusher, elevator, and coarse bin equipment.

 

 

2.Mill machine system

The complete machine is made into vertical structure, with small footprint, strong systemic, forming an independent production system from the rough machining of raw materials to conveying, powder process and final to the packaging.

Equipped with classifier impeller which will improve the powder precision and high intensity product.   According to the production experiences and practics, at the same spin speed, higher the density of the impeller will enhance the product fineness. In other words, under the situation that the product fineness is not needed to be changed, impeller of higher density spin slowly than the impeller of lower density, which reduces the air resistance force, so the capacity improves by more than 50% under the same power situation.

Unique design of intilted air channel. This design ensures that materials entering the shell will fall in the grinding chamber along the slope.

Arranger adopts enclosed gear box and pulleys, with stable and reliable operation.

Mill important parts are made of high quality castings and proximate matter, sophisticated technology, rigorous process, ensuring the durability of the whole equipment.

Electric system adopts centralized control, milling workshop can almost achieve unattended operation.

Install roots blower at the bottom of the boiling furnace, blow the cold air into the furnace body with air distributor, and blow powder materials inside of the furnace body to make it reach the boiling state. At a certain temperature, the powder materials drained of crystal water after drying become lighter and automatically flow to the discharging entrance. The gypsum powder produced by this procedure is stable in quality. The crystal water proportion and initial solidification time are easy to control.

3.Calcination system 

The working principle of boiling furnace drying system:

The technology of FD - chamber boiling furnace technology can effectively prevent the mixing of raw materials with gypsum powder in the process of calcining .
Traditional calcining technologies such as vertical boiling furnace , rotary kiln ,general boiling furnace, etc.Due to the effect of mixing function of the machinery and air flow, dihydrate gypsum ,semi-hydratedgypsum and anhydrite gypsum three-phase blending mutually in the process of boiling dehydration,It is inevitable that the phase composition of the final product will be polyphasic, and the product quality index will be reduced significantly.
FD - chamber fluid bed calcining process changes according to the temperature curve of gypsum powder , artificially divide calcining process into four relatively independent dehydration space, effectively avoid the phenomenon of high and low temperature material blending and the composition of the final product was improved .In the 1 and 2 areas of the main calcining furnace, high temperature heat transfer technology is adopted to rapidly heat and dehydrate the materials that have just entered the FD- chamber boiling furnace, and slowly dehydrate in the 3 and 4 areas.Under the action of high pressure wind, the whole material presents a fluid boiling state, which improves the efficiency of heat transfer and mass transfer in gas and solid powder..

4.Finished products packaging and storing system:

 Composed of the elevator, impeller feeder, finished product warehouse, packing machine and other equipment.

5. Dust removal system
 Pulsed bag precipitator with air box is mainly used for crusher, grinding machine, boiling furnace, packing machine, and the dust collecting.


6.Electrical control system introduction
There are two ways of manual control and DCS automatic control to choose. Here mainly introducing DCS automatic control mode.
  According to the milling production line technological characteristics and development trend of the current control industry, the electrical control system uses advanced DCS (distributed control system), and PROFBUS-DF field bus technology, centrally controlling various scattered equipment. This system has a high degree of automation, suitable for milling industry and has been widely promoted. There are three kinds of operating modes in a complete set of electronic control system namely the CRT automatic operation mode, the CRT manual operation mode and site operation mode:

                                       Powder Parameters
 

1.Product quality

Reach or exceed the china (GB9776-88building gypsum) requirements.

2.Fineness

100 mesh-120mesh

3.Bending strength 

Bending strength 1.8 Mpa; Compressive strength: was 3.0 Mpa.(The bending strength have direct relations with raw material) 

4.Main relative composition

1)Soluble anhydrous gypsum content:≥ 80% adjustable

2)The content of dihydrate gypsum: < 5% adjustable

3)Initial setting time: 3 ~ 8 min adjustable; Final setting time: 6 ~ 15 min adjustable.

4)Scale thick: 78 ~ 85% adjustable.