Highly effective reaction deep-cone settling method and apparatus

Abstract

The highly effective reaction deep cone settling comprises coagulation reaction by mixing the mixer and sewage into the coagulation device, with the density of the sewage 1-60g / l, mechanical blending speed 200-400r / m, forming floc suspension which goes through is generated into secondary flow, and forms on the slanting plate big grain aggregates, sliding to the deep cone density chamber through the conical slanting plate center in sedimentation reaction, and with the big grain aggregates crushed and condensed in the density chamber and exhausted with further dehydration in deep cone condensation. It combines the deep cone sedimentation, coagulation and condensation. It is mainly used for the treatment of high density fine grain sewage with mud.

Description

technical field

[0001] The invention relates to a reaction deep cone settling method and a device, in particular to a reaction deep cone settling method and a device for processing a fluid with high concentration of fine particles. Background technique

[0002] Coagulation and sedimentation is one of the important technologies for solid-liquid separation in sewage treatment. Using coagulation and sedimentation technology, the solid particles in the sewage react with the coagulation and fixative agent to form flocs, so that they can settle rapidly in a short time to achieve a higher concentration. Suspension and water can be separated quickly. Coagulation and sedimentation techniques are suitable for suspensions with lower concentrations. However, with the needs of actual production, there is a lot of high-concentration sludge water that needs to be treated urgently. Due to the low settling velocity of high-concentration fine-grained sludge, if the natural settlement method ...

Examples

example 1

[0032] Mix 100 liters of coagulant such as polyacrylamide with a concentration of 25mg / L and 20M sewage with a particle concentration of 1 gram / liter 3 Enter the coagulation reaction chamber 8 of the cylinder 7 in the shell 16 of the coagulation reaction device through the dosing pipe 2 and the sewage inlet pipe 1 respectively, start the motor and its reducer 20, drive the stirring shaft 3 and the blade 4 to rotate, and adjust the speed 400 rev / min, so that the coagulant fully contacts with the suspended particles in the sewage to form floc suspended matter; the sewage containing this floc suspended matter is generated by the secondary flow generator 14 at the lower end of the coagulation reaction chamber 8 The secondary flow makes the floc suspension form large particle aggregates on the conical inclined plate 13 and slides down through the center of the conical inclined plate 13 to the deep cone concentration chamber 11, and the supernatant containing fine particles enters th...

example 2

[0034] Mix 500 liters of polyacrylamide with a concentration of 25 mg / L and 200 M of sewage with a concentration of 30 g / L 3 Enter the coagulation reaction chamber 8 of the cylinder 7 through the dosing pipe 2 and the sewage inlet pipe 1 respectively.

example 3

[0036] Mix 2000 liters of polyacrylamide with a concentration of 25mg / L and 400M sewage with a particle concentration of 60g / L 3 Enter the coagulation reaction chamber 8 of the cylinder 7 through the dosing pipe 2 and the sewage inlet pipe 1 respectively.

technical field

[0001] The invention relates to a reaction deep cone settling method and a device, in particular to a reaction deep cone settling method and a device for processing a fluid with high concentration of fine particles. Background technique

[0002] Coagulation and sedimentation is one of the important technologies for solid-liquid separation in sewage treatment. Using coagulation and sedimentation technology, the solid particles in the sewage react with the coagulation and fixative agent to form flocs, so that they can settle rapidly in a short time to achieve a higher concentration. Suspension and water can be separated quickly. Coagulation and sedimentation techniques are suitable for suspensions with lower concentrations. However, with the needs of actual production, there is a lot of high-concentration sludge water that needs to be treated urgently. Due to the low settling velocity of high-concentration fine-grained sludge, if the natural settlement method ...

Examples

example 1

[0032] Mix 100 liters of coagulant such as polyacrylamide with a concentration of 25mg / L and 20M sewage with a particle concentration of 1 gram / liter 3 Enter the coagulation reaction chamber 8 of the cylinder 7 in the shell 16 of the coagulation reaction device through the dosing pipe 2 and the sewage inlet pipe 1 respectively, start the motor and its reducer 20, drive the stirring shaft 3 and the blade 4 to rotate, and adjust the speed 400 rev / min, so that the coagulant fully contacts with the suspended particles in the sewage to form floc suspended matter; the sewage containing this floc suspended matter is generated by the secondary flow generator 14 at the lower end of the coagulation reaction chamber 8 The secondary flow makes the floc suspension form large particle aggregates on the conical inclined plate 13 and slides down through the center of the conical inclined plate 13 to the deep cone concentration chamber 11, and the supernatant containing fine particles enters th...

example 2

[0034] Mix 500 liters of polyacrylamide with a concentration of 25 mg / L and 200 M of sewage with a concentration of 30 g / L 3 Enter the coagulation reaction chamber 8 of the cylinder 7 through the dosing pipe 2 and the sewage inlet pipe 1 respectively.

example 3

[0036] Mix 2000 liters of polyacrylamide with a concentration of 25mg / L and 400M sewage with a particle concentration of 60g / L 3 Enter the coagulation reaction chamber 8 of the cylinder 7 through the dosing pipe 2 and the sewage inlet pipe 1 respectively.

Images