Tons of Potassium Sulfate Project

General

CNBM is a high-tech enterprises international chemical engineering company, who is pioneering in chemical engineering technologies, and playing a leading role in new technology development, with capability of project consulting, design,procurement, construction management and production guidance.  CNBM provide services of chemical engineering and technology, with offering a scope of supply ranging from process design till the supply of completely integrated plants. CNBM master a technology of Potassium Sulfate production line, Calcium Chloride production line,sulfuric acid production line other fertilizers.We have cooperated with many international companies on projects,located Indonesia,Philippines,India,Jordan,Egypt.etc.

Plant Configuration

This plant is composed by the following units:

Unit 100: Raw material system

KCL from raw material warehouse is fed in Silo, and then go to screw conveyor, bucket elevator, en-masse conveyor, finally go to hopper on furnace top.

Sulfuric acid (98%) is pumped by sulfuric acid pump, go to high gravity tank on furnace top through the pipeline. 

Unit 200: Furnace system

KCL from potassium chloride hopper continuously go through potassium chloride weighting balance to measure and control the flow, and with concentrated sulfuric acid of 98% from high gravity concentrated sulfuric acid tank, measuring and controlling the flow since it flowing into electronic metering device. Flowrate of KCL and Sulphric acid are controlled by DCS, continuously added into the reaction chamber of Mannheim furnace (near center part) based on a fixed feeding ratio. High temperature conditions provided by heating of the burner, materials begin to have chemical reaction. Mixing and pushing materials by the agitator blade of rotary arm of reaction furnace, moving from inside to outside, to complete the chemical reaction process of potassium sulfate and HCL gas.

Keeping normal height of the furnace bed, putting into the raw materials continuously, potassium sulfate is continuously ejected from the discharge hole of reaction chamber. The final product potassium sulfate fall into the cooler ejector through sealing piping, it can be conveyed to belt conveyor by air-sealed conveyor after cooling, stirring and preliminary crushing, the qualified potassium sulfate put into the final product storage bin, supplying to packing machine.

 Unit 300:Hydrochloric Acid Absorption System:

Hydrogen chloride gas produced in the reaction is led out by the HCL door, through the cooling of graphite cooler, HCL gas goes through sulfuric acid gas washing tower, graphite absorption tower, FRP absorption tower. HCL fan suctioned pressurized HCL gas from the front tower to tail gas washing tower. Using water and dilute acid absorb HCL gas, making into approx 30-33% hydrochloric acid, then go to hydrochloric acid surge tank. The final product in Hydrochloric acid surge tank is pumped to Hydrochloric acid storage tank.

Finally, HCL tail gas can discharge to the atmosphere, in accordance with the national emission standards 

Unit 400: Environmental Protection System:

In the actual production of SOP, sometimes we need to open the furnace door to examine and treat the abnormal problems of reaction chamber, making the necessary operation. Although every day it takes a very short time, there will spill a small amount of HCL when opening the furnace door, we particularly design gas-collecting hood installed above the HCL spillover place of furnace door, adopting glass steel environmental blower to suction exhaust HCL gas to the outside, pressuring into the environmental protection absorption tower. The recovery of HCL gas overflow will be made of dilute acid by using water to acid system making use of hydrochloride acid.

Unit 500: Circulating Water System (Utilities):

Hot water from the production system flows into the hot water pool, hot water is pumped to the reflection type cooling tower by hot water pump, hot water contact with cold air forming into cold water and falling into cold water pool. Cold water maintains a certain level, pumped to high gravity water tank through the pipeline.

Keeping the level of high gravity water tank, cold water flows into water distributor, it supplies to all production equipment respectively, cold water is heated to form hot water, then collect to hot water pool through the pipes. Thus completing cycle repeated.

 Unit 600: Potassium Sulphate discharging from Furnaces and Bagging

The crude SOP product is delivered by belt conveyor, then to bucket elevator to vibrating screen,the unqualified potassium sulphate from the screen discharge to  crusher. The crushed product  is dropped down to the bucket elevator and then to vibrating screen.the qualified potassium sulphate from the screen  is transferred to belt conveyor, product silo and make bagging. 

Unit 700: HCL Tank Farm 

HCL comes from surge tank, then be fed to Storage tank in the tank farm. the storage tank be made of Fiber Reiforced Plastic material.

 Outline

The unit design shall be based on the advanced technology and process automation as well as reliable technology.

Design capacity

Capacity          :  100,000 MTPA(powder) for one production line

Plant availability   :   330 days per year and 24 hrs per day

Design Battery Limits

Site Climatic Condition

Temperature

Humidity:

Wind

Rainfall and snow precipitation

The Above information to be provided by the client.

Main Feedstock Material Requirement and Product Specification

Muriate of Potash (KCl):

Sulphuric Acid:

Product Specification

Potassium Sulphate (K2SO4)

HCL

HCl-A(A-grade)

HCl-B(B-grade)

Consumption of raw material and utilities

Consumption of Raw Material:

Consumption of Utilities:

 Environment

3D soft ware

Process Flow diagram