product name |
Waste hydrochloric acid concentration equipment, three effect evaporation equipment, waste acid treatment equipment, waste acid regeneration equipment |
Region oriented |
whole country |
brand |
Futong |
Processing customization |
yes |
power |
20KW |
Air purification technology |
other |
Waste acid treatment equipment, waste hydrochloric acid treatment equipment, waste hydrochloric acid purification equipment, dilute hydrochloric acid concentration equipment
Brief Introduction of Waste Hydrochloric Acid Treatment System
A certain amount of waste acid will be produced in the process of steel processing and galvanizing production. The complete set of graphite waste hydrochloric acid treatment equipment produced by our company is reasonably designed. The main equipment is made of graphite, which is a non-metallic material with good heat conduction and corrosion resistance. It has the characteristics of long service life (more than 10 years of normal use), energy saving, convenient operation, small floor area, compact device, etc., and is widely used in the field of waste acid treatment.
The main specifications are: SMTN-5, SMTN-10，SMTN-20，SMTN-30，SMTN-50，SMTN-80，SMTN-100，
1、 Single effect waste hydrochloric acid treatment system
1. Process parameters:
(1) Raw material concentration: ferrous chloride content 10~30%, hydrochloric acid content 3~10%
(2) Discharge concentration: ferrous chloride crystalline solid, hydrochloric acid content 3-10%
2. Process flow:
This process adopts single effect evaporation process. The waste hydrochloric acid solution is preheated to about 85-90 ℃ by the preheating device, and then enters the evaporation device. The solution is concentrated to more than 80% of the ferrous chloride concentration. It is put into the enamel tank for stirring, cooling and crystallization, and then put into the suction filtration tank for vacuum filtration to obtain solid ferrous chloride. The evaporated mixture of hydrogen chloride and water vapor is cooled by the condensing device to obtain pure hydrochloric acid solution, which can be reused. The whole system has continuous production, and negative pressure operation saves energy.
3. Power consumption: (electricity and steam consumption is calculated by treating 1 ton of waste hydrochloric acid solution)
1 Electric kwh/t 15
2 steam t/t 1
2、 Waste acid treatment and hydrochloric acid concentration system
1. Process parameters:
(1) Solution concentration: ferrous chloride content 10~30%, hydrochloric acid content 3~10%
(2) Discharge concentration: ferrous chloride crystalline solid, hydrochloric acid content 15-20%
2. Process flow:
This process adopts one effect evaporation process. The waste hydrochloric acid solution is preheated to about 85-90 ℃ by the preheating device, and then enters the evaporation device. The evaporated dilute hydrochloric acid gas enters the distillation device for distillation and concentration. The HCl content of waste water obtained by cooling the condensation device is ≤ 0.5% (which can be reused or neutralized and discharged) from the tower top, and the pure hydrochloric acid solution with a concentration of 15%~20% (which can be reused) from the tower bottom. Concentrate the ferrous chloride solution to a concentration of more than 80%, put it into an enamel tank, stir, cool and crystallize, and put it into a suction filter tank for vacuum filtration to obtain solid ferrous chloride. The whole system has continuous production, and negative pressure operation saves energy.
3. Power consumption: (electricity and steam consumption is calculated by treating 1 ton of waste hydrochloric acid solution)
1 Electric kwh/t 20
2 steam t/t 1 ～ 1.2
3、 Three effect waste hydrochloric acid treatment system
1. Process parameters:
(1) Solution concentration: ferrous chloride content 10~30%, hydrochloric acid content 3~10%
(2) Discharge concentration: ferrous chloride crystalline solid, hydrochloric acid content 3-10%
2. Process flow:
This process adopts the three effect downstream flash evaporation process. The waste hydrochloric acid solution is preheated to about 80% by the preheating device, and then enters the first effect heater. After being heated by the heater, it enters the first effect flash tank, where it is evaporated and concentrated to about 45% of ferrous chloride content; The secondary steam generated from the primary effect flash tank enters the secondary effect heater, and the concentrated solution enters the secondary effect flash tank for evaporation and concentration until the ferrous chloride content is about 60%; The secondary steam generated by the two effect flash tank enters the three effect heater, and the concentrated solution enters the three effect evaporation tank, where the three effect evaporation concentration reaches more than 80% of the ferrous chloride content, and then it is put into the enamel tank for mixing, cooling and crystallization, and then it is put into the suction filtration tank for vacuum filtration to obtain solid ferrous chloride. The mixture of evaporated hydrogen chloride and water vapor is cooled by a cooling device to obtain pure hydrochloric acid solution, which can be reused. The whole system has continuous production, and negative pressure operation saves energy.
3. Power consumption: (electricity and steam consumption is calculated by treating 1 ton of waste hydrochloric acid solution)
1 Electric kwh/t 40
2 steam t/t 0.5
Hydrochloric acid concentration
1. Material name: waste hydrochloric acid solution
2. Feed concentration: ferrous chloride content 20%, hydrochloric acid content about 5%
3. Discharge concentration: ferrous chloride content ≥ 80%, hydrochloric acid content 15-19%, wastewater (HCL ≤ 5 ‰)
Process selection and description
This process adopts one effect evaporation process. Add impurities such as 20% ferrous chloride and 5% hydrochloric acid
The waste acid solution is preheated to about 85-90 ℃ by the preheating device, and then enters the evaporation device
Dilute hydrochloric acid gas enters the distillation unit for concentration, and waste water (HCl content ≤ 5 ‰) is extracted from the tower top and the tower bottom
Hydrochloric acid with concentration of 15% - 19% is produced. Concentrate impurities such as ferrous chloride to a concentration ≥ 80%, then
Then it is put into the reaction kettle for cooling and crystallization, and then it is put into the filtration system for filtration. Solid ferrous chloride is obtained through solid-liquid separation
Impurities, the remaining mother liquor returns to the waste acid raw material for further treatment. This process is continuous and operated
Convenience; The heater is made of graphite to save cost; Less auxiliary equipment, compact device, small floor area,
Low temperature difference loss and energy saving.
Design principles
1. The process is mature, stable and reliable;
2. The whole process shall minimize pipeline detours and reduce operating costs;
3. The overall layout is simple, reasonable and beautiful, in line with national regulations on greening, environmental protection and fire protection;
4. Adopt technology and save energy;
5. Convenient operation, management and maintenance, reducing the labor intensity of operation;
6. In combination with specific site conditions, the plane layout and elevation distribution of equipment and structures shall be fully considered in the design
At the same time, use the processing equipment to minimize the floor area.
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