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Preparation method for producing potassium calcium silicon magnesium fertilizer calcining fluxing agent

A technology of flux and calcination, which is applied in the direction of potash fertilizer, calcium fertilizer, application, etc., can solve the problem of small tolerance of raw material ingredients, and achieve the effect of solving difficult ingredients, improving heat utilization rate, and mineral utilization rate

Pending Publication Date: 2018-09-21
中材鼎原生态肥业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The calcination temperature of the above production process is 1150 ~ 1400 ℃. In the rotary kiln production process, ring formation will occur in the kiln. The tolerance of raw material ingredients is small, and ring formation in the kiln will occur.

Method used

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  • Preparation method for producing potassium calcium silicon magnesium fertilizer calcining fluxing agent
  • Preparation method for producing potassium calcium silicon magnesium fertilizer calcining fluxing agent
  • Preparation method for producing potassium calcium silicon magnesium fertilizer calcining fluxing agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Example 1, such as figure 1 , figure 2 Shown:

[0028] Potassium feldspar, limestone or dolomite, and flux are used as raw materials, which are sequentially processed, crushed, stored, batched, pulverized, and calcined. Crushing: Among them, potassium feldspar, limestone or dolomite are generally in the form of blocks and need to be crushed and stored after crushing. The flux is generally in powder form and stored directly. Storage: Store raw materials and flux separately in the raw material warehouse or in the silo. Ingredients: According to the ratio, the raw materials and flux are individually weighed and fed, and then pulverized after aggregation. Grinding: The raw materials and the flux are finely ground and mixed together in the grinding process. The fineness of the finished grinding is 0.08mm. They are selected by the powder classifier and enter the powder warehouse. Calcination: The mixed powder enters the kiln for calcination, the temperature of the sinter...

Embodiment 2

[0040] Example 2, such as figure 1 , image 3 Shown:

[0041]Potassium feldspar and limestone or dolomite are used as raw materials, which are sequentially processed, crushed, stored, batched, ground, homogenized with flux, and calcined. 2. Crushing: Potassium feldspar, limestone or dolomite are generally in block shape and need to be crushed and stored after crushing. The flux is generally in powder form and stored directly. 1. Storage: Store raw materials and flux separately in the raw material warehouse or in the silo. 1. Ingredients: According to the ratio, the raw materials are individually weighed and fed, and then pulverized after aggregation. , Grinding: The raw materials are finely ground and mixed during the grinding process, and the fineness of the grinding is 0.08mm, and they are selected by the powder classifier and enter the homogenization warehouse. Homogenization with fluxing agent: measure when the raw material powder enters the homogenization storehouse, ...

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Abstract

The invention discloses a preparation method for producing a potassium calcium silicon magnesium fertilizer calcining fluxing agent. The fluxing agent comprises, by weight percentage, 40-60% of potashfeldspar, 20-40% of limestone and 10-20% of dolomite. The preparation method has the advantages that the production temperature of the method is 100-300 DEG C lower than that of a traditional production process, and sintering time is shortened from original 40-60 minutes to 30 minutes; the ring forming problem in a kiln is solved fundamentally, heat utilization rate is increased greatly, power consumption is lowered, and operating rate is increased greatly; the use amount of the fluxing agent is low, the fluxing agent is mixed with the raw materials during grinding, operation convenience is achieved, and product cost is not increased by using the fluxing agent; by using the fluxing agent, the conversion rate of effective components is increased, the minimum content of the potash feldsparis changed from the original 10% to 8.5%, and mineral utilization rate is increased greatly; raw material preparing tolerance is increased, sintering's requirements on magnesium and iron are lowered,and problems such as material preparing difficulty and quality instability caused by production enterprise raw material component instability are solved.

Description

technical field [0001] The invention belongs to the calcination technical field of producing potassium-calcium-silicon-magnesium fertilizer formula by calcining potassium feldspar and limestone and producing potassium-calcium-silicon-magnesium fertilizer by calcining in rotary kiln, wheel kiln and tunnel kiln, and specifically relates to a method for producing potassium-calcium-silicon-magnesium fertilizer A method for preparing fertilizer calcining flux. Background technique [0002] Soil conditioner is an important development direction of current agricultural development. The calcination temperature of potassium calcium silicon magnesium soil conditioner produced by using potassium feldspar, limestone and dolomite in rotary kiln is generally 1150°C-1450°C. During calcination, the material is easy to sinter and form rings in the kiln. The main chemical reaction is in potassium feldspar. The melting temperature is 1250°C. At this temperature, the potassium feldspar starts ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00
CPCC05D1/00C05G3/00C05D1/04C05D3/00C05D3/02C05D9/00C05D9/02Y02P20/129
Inventor 雷殿俊原骜
Owner 中材鼎原生态肥业有限公司
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