What are the requirements for compound fertilizer formula design?

① The viscosity of the material in the formula is the basis of granulation. When low concentration fertilizer is produced by using superphosphate as the phosphorus source, the conditioning agent of superphosphate and viscous material should be greater than 50%. When high-concentration compound fertilizer is produced by using ammonium phosphate as the phosphorus source, the conditioning agent of ammonium phosphate and viscous material should not be less than 40%. Urea formula depends on the amount of urea. The proportion of viscous materials in high-viscosity urea is generally about 35%. ② The ingredients used in the formula must be conducive to improving the roundness of the particles. The decomposition and softening temperature of dispersive materials (potassium chloride, ammonium chloride, potassium sulfate, ammonium sulfate, etc.) is relatively high, which can increase the strength of the particles in the dryer and play a key role in improving the roundness of the particles. The sum of dispersible materials in the formula should account for more than 35%.

How long does the fertilizer stay in the dryer?

The residence time of materials in the dryer should be generally greater than 22 min. Under the same condition, the longer the dryer barrel, the longer the material residence time and the higher the heat energy utilization ratio. Therefore, lengthening the dryer barrel is very beneficial to make full use of thermal energy. It is an effective way to solve the problem that the setting of granulation and pelletizing area affects the drying function.

What is the most suitable drying temperature during organic fertilizer processing?

To avoid the death of effective live bacteria due to excessive temperature during the drying process, the drying temperature of the material should not be higher than 60 ℃ (generally 50 ℃). For this reason, the temperature of the hot air in contact with the material should be different according to the moisture content of the material, generally no more than 130 ℃, so that the hot air temperature can be controlled in sections to improve the thermal efficiency as well as avoid the death of effective live bacteria.

What are the factors that affect the granulation of fertilizer disc granulators?

The main factors influencing the granulation of fertilizer disc granulator are mainly the diameter of the disc, the height of the side of the disc, the inclination of the disc, the rotating speed and the water addition. The ratio of side height and diameter of the disc granulator is generally 0.12 ~ 0.17. Its diameter can be calculated from the production intensity obtained from the test or actual production assessment. The inclination of the disc granulator is determined according to the natural angle of repose of the wet powder before granulation, for example: The natural angle of repose of potassium chloride is 36°; dipotassium phosphate is 31°; coarse whiting is 31° ~ 35°. When the inclination is less than the natural angle of repose of the wet powder, the material will stick to the disc; however, as the inclination increases, the rotation speed increases, the material residence time becomes shorter, and the overflow particle size becomes smaller, so it should be determined according to specific conditions, generally 40°～60°. Increasing the disc rotation speed can increase the granulation rate of fertilizers. As the amount of water added increases, the granulation rate of fertilizer first increases and then decreases. The smaller the particle size of raw materials, the higher the granulation rate.

??? ????? ??? ??????? ???????? ?????? ????? ?????? ???????

??????? ????????? ?? ??? ?? ??????? ??? ??? ?????? ???? ???? ???? ??????? ???????? ???????? ???????? ????? ????? ??????. ??? ???? ??????? ???????? ??? ??? ?????? ??? ????? ????? ???????? ????????.

??? ??????? ???????? ??? ????? ??? 3 ????? ?????? ?????? ??? ?????????? (N)? ???????? (P)? ??????????? (K). ????? ??? ???? ?? ???? ??? ????? ??????? ????? ????????.

????? NPK	???????	??? ??????
???????	????? ?????? ??????? ??????	???????? ????? ?????? ?????? ????? ?????
????????	????? ???? ????? ?????? ?????? ????????	???????? ????? ????? ?????? ????? ??????? ????.
??????????	????? ????? ??????? ?????? ?????? ?????? ???????? ????? ?????? ??????	???????? ?????? ?????? ????? ????? ???????

?????? ?? ???? ????? ??????? ???? ???????. ??????? ???????? ?????? ?????? ??? ????????. ??? ??????? ????? ?? ???? ???? ????? ?????? ????? ??????? ????????.

?????? 1 ??? ?????? ???????

????? ??? ????? ??????? ????? ????? ??????? ???????? ??????? ???????? ?????? ?????? ?????? ??? ??????? ????????. ????? ?????? ??? ?????? ?????? ??? ??? ????? ?????? ???? ??????? ????????.

??????? ?????? ?????? ??? ???? ??????. ?? ???? ????? ?????? ??????? ??? ??? ????? ?????? ?????? ??????? ??? ?????????? ????????? ???????????? ????? ???? ????? ??? ?????? ??????? ??????? ???????.

???? ????? ??????? ???????? ??? ????? ??? ???????.

1. ??????? ????????????? ??????? ??????????? ??????? ?????????? ???????? ??????? (????? NPK)

??????? ???????????? ???????? ?????????? ???????? ????????? ???????? ??????? (????? NPK)

???? ???????? ??????? ?? ??? ????? ?? ??????? ???????? ??????? (??????????)? ????? ???????? (????????)? ??????? ?????????? (??????????)? ?????? ?????? ?? ???????? ??????? ??? ?????? ?????? ?????????.

??? ????? ?????? ????? ??? ??????? ?????? ????????? ??????? ????????? ???????? ????????? ??????? ????????? (?????? ????? ????????? ??????? ????? ????????? ??????? ????? ??????? ?????? ???????) ??????? ?????????? (??????? ??????????) ?????? ???? ????? (??? ????? ?? ????? ?????? ?????? ?????? ?? ????? ???????).

?????? ?????? ??????

???? ??? ??????? ???? ????? ??????. ??? ????? ?? ????? ?????? ??????? ????? ??????? ??? ??? ??????? ??? ???????? ???????? ???????? ??????? ??? ????? ???? ????? ?? ?????? ??????? ????????.

??????: ??? ????? ?????? ?????? ???? 15-20 ????? ??? ????.

?????? ?????? ??????

1. ???? ???????: ??? ?????? ????????? ?????? ???????? ???????? ??????.

2. ?? ????????: ???? ????? ???? ??? ????? ??? ??????????? ???????? ??????????? ?????????? S? ?????? ?? ??????? ???????? ???????? ????????.

3. ??????? ????????: ????? ??????? ????? ??? ?????? ???????? ????????? ???????? ??????? ??????? ?????? ????????? ??????.

4. ?????? ????? ?????? ?????: ???? ?? ???? ?????? ???? ?????? ?????? ??????? ??????? ???? ?????? ???.

5. ??????: ????? ??? ?????? ?? ??????? ?????? ???????? ???????? ????????? ??????.

?????? 2 ??? ??????? ?????????

?? ???????? ?????????? ? ????????? ????????? ? ????????? ??? ??????? ????????? ????????? ??????? ?? ???? FTM ???? ?????? ???? ????? ?????? ?????? ??????? ?? ????? ??????? ???????? ???????? ??????? ??????? ???? ???????? ???????? ???????.

??????? ?????????? ????? ???? ??? ????? ???? 4:1. ??? ???????? ?????? ???? ?? ???? ?????? ??? 2 ??? ????? ?? ??? ??????? ??? 110 ?? ?? ??????. ????? ???????? ??????? ?????? ???? ???? ?? ??? ??? 1200 ?? ?? ??????.

?????? ??????? ????????

???????? ??? ???? ??? ?????? ??????? 杏吧论坛 ?????? ?? ??????? ???? ?????? ??????? ??????? ??? ?? ????? ?????? ??????? ????? ???? ????? ????? ???????. ?????? ??? ??????? ????????? ???? ?? ????? ??? ??????? ??? ??????. ???? ??? ???? ???????

?????? 3 ????? ???????

??? ????? ??????? ?? ???? ??? ??????? ???????? ???????? ??????? ???? ??????? ??? ????? ?????????? ??????? ?????????? ??????? ??????????? ?????? ???? ?? ????? ????? ???? ???? ??????.

??????? ???? ?? ???? ??? ????????? ?????? ?????? ????? ???????? ??????? ?????? ?? ?????? ??????? ?????? ?????? ????? ???????. ????? ????? ???? ??????? ?????? ????? ???????.

???? ????? ????? ??????? ????????? ???? ???? ?? ????? ??????? ??? ??????? ??????? ???????? ??????????? ???????? ?????. ?? ?????? ?????? ?????? ?? ?????? ????? ??? ???????? ??????? ????????? ?????.

??? ???? ??????? ????????

???? ??? ??????? ??????? ?? ?? ?????? ???????? ?? ??? ???? ?? ????? ??????? ???????? ??? ???? ??? ????? ????? ?????? ?? ?????? ???????. ???? ??? ???? ???????

???? ??? ??????? ??????? ?? 杏吧论坛 ??????? ?????? ?? 4 ??? 24 ???? ?? ?????? ?????? ???????? ??????? ???????:

1. ??????? ???????? ??? ??? ????????

2. ???? ??? ?????? ?? ??? ????? ????

3. ????? ?????? ?????

4. ????? ??????? ????? ??????? ??????

5. ?????? ?????? ?????? ?????. ???? 2/3 ?? ???????? ????????? ?? ????? ???? ?????

?????? 4 ????? ???????

??? ???????? ????? ???????? ??????? ?????? ??? ????? ?????. ??? ??????? ??????? ????? ??????? ???? ???? ??????? ???????? ????? ???? ???????? ????? ???????.

????? ?????? ??????? FTM ?????? ??????? ???????? ???????. ???? ?????? ?? ?????? ????? ??????? ??????? ?? ??????? ?? ???? ????? ???? ???????. ????? ??????? ???????? ?????? ???? ??????? ?????? ?????? ?????? ?????? ????? ???????.

???? ??????? ????????

?? ????? ?????? ?????? ?????? ?????? ????? ??????? ????????? ?????? ????? ???? 180 ????? ?????? ????? 135 ????? ?????? ????? ??????? 135 ????/120 ????? ?????? ????? 120 ????? ?????? ????? ??????? 120 ????/90 ???? ??? ??????. ??? ???? ??? ???? ???????? ?????? ???????? ????? ??? ???????? ?????? ????? ???????.

???? ?? ???? ??? ?????? ?????? 1.0%-1.5%. ????? ?????? ?? ???? ??????? ??? ??? ?????? ?????? ?? 100 ???? ?????. ??? ?????? ?? ???? ????? ??? ?????? ??? 65-80 ???? ????? ?? ?????? ???? ?? ???? ???? 1 ???? ?????. ???? ??? ???? ???????

?????? 5 ????? ?????? ???????

??? ??? ?????? ??????? ??? ?????? ?????? ?????? ?????? ???????. ?????? ????? ??????? ???? ????? ??????? ?????? ?????? ??????? ??? ?? ???????? ??? ?????? ?????? ??????.

???? ????? ??????? ????????

??? ???????? ??? ????? ?????? ???????? ????? ???? ???????. ??? ????? ????? ???????? ??????? ???????? ???????? ??? ??????? ????? ??? ????? ??????? ??????? ??? ??????? ?????????. ???? ??? ???? ???????

?????

????? ????? ??????? ????????? ?????? ??????? ??????? ????????? ????????? ????????? ????????. ??? ???? ????? ????? ???? ????? ????? ????? ??????? ????????? ???????. ??? ??? ?????? ???? ??????? ????? 杏吧论坛 ???? ???? ??????? ??????? ??? ????? ???????.

??????? ??????? ??? ????? ????? ??????? (??????? ??????? ???????? ???????).

1. ?? ?? ??????? ????? ?????? ??????? ????????

① ????? ?????? ???????? ?? ?????? ?? ???? ???????.

????? ??? ????? ???? ????? ??????? ???????? ?????? ?????? ????? ????????? ??? ?? ???? ???? ??????? ?????? ?????? ??????? ?????? ???? ?? 50%.
????? ??? ????? ??????? ??????? ??? ??????? ?????? ???????? ?????? ????????? ????? ????????? ??? ???? ??????? ??????? ????????? ??????? ?????? ??? ??? ??? ?? 40%.
????? ???? ??????? ??? ???? ???????. ????? ???? ?????? ?????? ?? ??????? ????? ??????? ???? ??? ????? 35%.

② ??? ?? ????? ???????? ????????? ?? ?????? ??? ????? ??????? ????????.

???? ????? ?????? ???????? ?????? ??????? (?????? ??????????? ?????? ?????????? ??????? ??????????? ??????? ?????????? ???) ?????? ??????? ??? ???? ?? ???? ?? ??? ???????? ?? ?????? ????? ????? ??????? ?? ????? ??????? ??????. ??????. ??? ?? ???? ????? ?????? ??????? ?????? ?? ?????? ???? ?? 35%.

2. ?? ?? ??? ???? ??????? ?? ???????

??? ?? ???? ??? ???? ?????? ?? ?????? ???? ??? ???? ?? 22 ?????. ?? ?? ??? ??????? ???? ??? ??? ????? ??????? ??? ??? ???? ?????? ??????? ???? ??????? ?????? ????????.

?????? ??????? FTM

????? ??? ????? ??????? ?????? ????? ???? ?????? ????????? ??????? ?? ?????? ????????. ???? ????? ????? ??? ????? ?? ????? ????? ??????? ???????? ???? ??? ????? ???????.

3. ?? ?? ???? ????? ??????? ?????? ????? ?????? ??????? ????????

????? ??? ????????? ????? ??????? ???? ???? ??????? ??????? ????? ????? ???????? ??? ??? ???? ???? ????? ????? ?????? ???? ?? 60 ???? ????? (50 ???? ????? ???? ???).

???? ?????? ??? ?? ???? ???? ????? ?????? ?????? ??????? ?????? ?????? ????? ?????? ??????? ?? ??????? ???? ??? ?? ???? ?? 130 ???? ?????? ???? ???? ?????? ?? ???? ????? ?????? ?????? ?? ????? ?????? ??????? ????????. ????? ???? ??? ????????? ????? ???????.

4. ?? ?? ??????? ???? ???? ??? ????? ?????? ????? ????????

??????? ???????? ???? ???? ??? ????? ?????? ??? ??????? ?? ???? ????? ??? ?????? ??????? ???? ?????? ???? ?????? ????? ???????? ?????? ?????.

?????? ??? ??????? ?? ??????? FTM

① ???? ???? ???????? ??????? ???? ???? ????? ???? ??? 0.12-0.17. ???? ???? ????? ?? ????? ??????? ???? ?? ?????? ????? ?? ???????? ?? ????? ??????? ??????.

② ??? ????? ??? ???? ????? ????? ?????? ?????? ???????? ??????? ????? ??? ???????. ??? ???? ??????:

????? ?????? ???????? ??????? ?????????? ?? 36 ????? ?????? ????? ?????????? 31 ????. ?????? ????? ?? 31 ???? -35 ????.

????? ???? ????? ??? ?? ????? ???? ??????? ?????? ??? ?????? ??? ????? ??????? ??? ???? ?? ????? ?????? ????? ???? ???????? ????? ??? ???? ?????? ????? ????? ??? ???????? ??????? ????? ???? ??? ?????? ????? ????? ?????? ???? ??? 40 ???? -60 ????.

③ ????? ???? ????? ????? ???? ?? ???? ?? ???? ????? ???????.

④ ?? ????? ???? ????? ???????? ???? ???? ????? ??????? ????? ?? ?????. ???? ??? ??? ???????? ?? ?????? ????? ????? ???? ??? ???? ???????.

5. ????? ??? ??????? ????????

?. ??????? ???????????? : ????? ??????? ?????? ????????? ???????? ?????????.

?. ??????? ?????????? : ????? ?????? ????? ?????????? ??????? ????? ?????????? ??????? ?????? ???????.

?. ??????? ???? ????? ??? ?????????? : ????? ???????? ???????? ??????????.

?. ??????? ??????? : ????? ??? ???? ?? ?????????? ????????? ??????????? (NPK) ???? ????? ?????? ?? ???????? ???????? ????????. ?????? ?? ??? ????? ??? ??????? ????? NPK ?????? ???? ??? 10-10-10 ?? 20-20-20.

?. ??????? ???????? : ?? ?????? ??????? ?? ????? ???? ????? ?????? ??? ?????? ????? ?????? ?? ????? ?????. ????? ??? ?????? ??? ???????? ??????? ?? ????? ??????? ????????? ??????. ??? ????? ??????? ???????? ????? ?????? ????????.

???? : Jordan ?????? ?? ???? ??????? ?????? ?????? ????? ???? ???????. ?????? ?? ??? ??? ???? ?? ?????? ?? ??????? ??????.