Phosphorus coal gasification reaction device for combined production of yellow phosphorus and syngas

A phosphorus coal gasification reaction device for combined production of yellow phosphorus and syngas, comprising a stock bin, a mineral aggregate lock hopper, a phosphorous coal gasification reactor, a gas product outlet, combustion burners, an auxiliary burner, a slag quench chamber, and a slag lock hopper;

• wherein a discharge port of the stock bin is connected to the mineral aggregate lock hopper by an inlet airlock valve, and a lower opening of the mineral aggregate lock hopper is connected to an upper feeding port of the phosphorous coal gasification reactor by an outlet airlock valve;
• a slag discharge port at a bottom of the phosphorous coal gasification reactor is connected to an inlet of the slag quench chamber, and a slag outlet of the slag quench chamber is connected to an inlet of the slag lock hopper, and molten slags are discharged via the slag lock hopper;
• the phosphorus coal gasification reactor is divided into a drying zone, a dry distillation zone, a combustion zone, a phosphate rock reduction zone, and a slag bath zone from top to bottom;
• wherein the phosphate rock reduction zone tapers in a direction from the combustion zone to the slag bath zone, the gas product outlet communicating with the phosphorus coal gasification reactor is installed at a top of the phosphorus coal gasification reactor, and two to eight combustion burners are symmetrically arranged on the combustion zone;
• the auxiliary burner communicating with the slag bath zone is arranged at a bottom of the slag bath zone;
• a combustion temperature of pure oxygen and pulverized coal in the combustion zone is up to 1800 to 2000° C.;
• solid mineral aggregates above the phosphate rock reduction zone are molten to enter the phosphate rock reduction zone, the auxiliary burner is configured to introduce fuel gas-into the phosphate rock reduction zone and the slag bath zone for stamping and liquid sealing and is configured to reduce a pressure at the auxiliary burner when slags need to be discharged, and a slag discharge operation is performed by pressure regulation;
• syngas containing phosphorous vapor is fed to a subsequent separation and purification unit through the gas product outlet formed in the top of the phosphorus coal gasification reactor, liquid-state molten slags enter the slag quench chamber for water quenching to form glass having crystallites of about 1 mm, which is discharged to the slag lock hopper.