Acid displacement washing system for energetic nitrocotton with high nitration degree

The invention relates to a high-nitration-degree energy-containing nitrocotton acid displacement washing system, and belongs to the field of chemical cellulose production. A first displacement acid low-position tank (2), a second displacement acid low-position tank (3), a displacement dilute acid low-position tank (4) and a displacement concentrated acid low-position tank (5) of the system are connected with an acid driving machine (1) through a first acid pump (6), a second acid pump (7), a dilute acid pump (8) and a concentrated acid pump (9), densimeters (10) are arranged on the first displacement acid low-position tank (2), the second displacement acid low-position tank (3) and the displacement dilute acid low-position tank (4), and branch pipe adjusting valves (11) are arranged on branch pipes of the second acid pump (7), the dilute acid pump (8) and the concentrated acid pump (9). And the branch pipe regulating valve (11) is electrically connected with the density meter (10). The system adjusts the disp