Waste acid resource optimization system utilizing factory waste heat
By using factory waste heat to preheat the waste acid solution in the waste acid resource optimization system and using cold water to accelerate the formation of acid solution, the problem of low waste acid recycling efficiency is solved, and efficient resource utilization and environmental protection are achieved.
Patent Information
- Application Number
- CN202420307590.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-20
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2034-02-20
AI Technical Summary
The existing waste acid resource optimization system cannot effectively utilize factory waste heat, resulting in low recycling efficiency of waste acid solution. The distilled acid gas can form recyclable acid solution under natural conditions at a slow rate, resulting in waste of resources and environmental pollution. .
A waste acid resource optimization system using factory waste heat is designed, including preheating tanks, distillation tanks, cooling towers and liquid and gas flow pipelines. The waste acid solution is preheated through factory waste heat to improve distillation efficiency and accelerate the formation of cold water. Recycled acidic solution.
It improves the distillation efficiency and resource utilization rate of waste acid solution, reduces resource waste, increases the recycling efficiency of waste acid solution, and avoids environmental pollution.
Smart Images
Figure CN222159820U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of waste acid resource recovery, in particular to a waste acid resource optimization system utilizing factory waste heat. Background Art
[0002] In industrial production, waste acid is generated in the processes of nitration, esterification, sulfonation, alkylation, catalysis and gas drying of organic matter, or in the processes of titanium dioxide production, steel pickling and gas drying. The direct discharge of waste acid solution will not only cause environmental pollution, but also cause waste of resources. However, most of the existing waste acid resource optimization systems cannot make good use of resources. The waste heat generated by the factory during processing is easily wasted, and the acid gas after distillation forms a recyclable acid solution at a slow speed under natural conditions, which makes the recovery efficiency of the waste acid solution relatively low. Utility Model Content
[0003] In view of this, the utility model provides a waste acid resource optimization system that utilizes factory waste heat, which can fully utilize the factory waste heat to preheat the waste acid solution, and can also more quickly form a recyclable acid solution, thereby improving the recovery efficiency of the waste acid solution and the utilization rate of resources.
[0004] The technical solution is: a waste acid resource optimization system utilizing waste heat from a factory, including a waste acid pool, an acid extraction pump, a filter press, an evaporation reaction system, a cooling system, and liquid and gas flow pipelines. The evaporation reaction system includes a preheating tank, a distillation tank, and a solid collection barrel. The cooling system includes a water reservoir, a cooling tower, and a distillate collection barrel. The waste acid pool is connected to the acid inlet of the acid extraction pump through a pipeline, the acid outlet of the acid extraction pump is connected to the filter press through a pipeline, the filter press is connected to the preheating tank through a pipeline, the preheating tank is connected to the distillation tank through a pipeline, the distillation tank is connected to the cooling tower through a pipeline, the cooling tower is connected to the distillate collection barrel through a pipeline, the cooling tower is connected to the water reservoir through a pipeline, and the distillation tank is connected to the solid collection barrel through a pipeline.
[0005] Further, the preheating tank is used to preheat the spent acid.
[0006] Further, a distillation tank is used to evaporate the spent acid.
[0007] Further, the cooling tower is used to cool the evaporated acid gas and water vapor.
[0008] Furthermore, the distillate collecting barrel is used to recover the cooled acidic solution.
[0009] The beneficial effect is as follows: in the utility model, the waste acid solution is preheated by the waste heat generated by the factory during processing, so that the waste acid solution can be heated more quickly during subsequent distillation, which is convenient for the distillation of the waste acid solution, making the distillation efficiency of the waste acid solution higher, and can make full use of the factory waste heat, so that resource utilization is better and resource waste is avoided as much as possible. At the same time, a recyclable acid solution can be formed more quickly through cold water, so that the cooling efficiency of the gas is higher, thereby making the recovery efficiency of the waste acid solution higher. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1 It is a schematic diagram of the process of the utility model. DETAILED DESCRIPTION
[0011] The utility model is further described below in conjunction with the accompanying drawings and embodiments.
[0012] Example 1: Waste acid resource optimization system using factory waste heat, such as Figure 1 As shown, it includes a waste acid pool, an acid extraction pump, a filter press, an evaporation reaction system, a cooling system, and liquid and gas flow pipelines. The evaporation reaction system includes a preheating tank, a distillation tank and a solid collection barrel. The cooling system includes a water reservoir, a cooling tower and a distillate collection barrel. The waste acid pool is connected to the acid inlet of the acid extraction pump through a pipeline, the acid outlet of the acid extraction pump is connected to the filter press through a pipeline, the filter press is connected to the preheating tank through a pipeline, the preheating tank is connected to the distillation tank through a pipeline, the distillation tank is connected to the cooling tower through a pipeline, the cooling tower is connected to the distillate collection barrel through a pipeline, the cooling tower is connected to the water reservoir through a pipeline, and the distillation tank is connected to the solid collection barrel through a pipeline.
[0013] Further, the preheating tank is used to preheat the spent acid.
[0014] Further, a distillation tank is used to evaporate the spent acid.
[0015] Further, the cooling tower is used to cool the evaporated acid gas and water vapor.
[0016] Furthermore, the distillate collecting barrel is used to recover the cooled acidic solution.
[0017] In the utility model, the acid extraction pump is started manually, and the acid extraction pump will extract the waste acid solution in the waste acid pool into the filter press through the pipeline. The filter press will perform preliminary filtration on the waste acid solution, and the filtered waste acid solution will enter the preheating tank through the pipeline. Then, the waste heat generated by the factory during processing is manually connected to the preheating tank, and the waste heat will preheat the filtered waste acid solution. Then the waste acid solution enters the distillation tank again. The distillation tank is composed of a double-layer structure. The distillation tank will heat the waste acid solution, so that the evaporated acid gas and water vapor enter the cooling tower along the pipeline. At the same time, the components in the waste acid solution that cannot be recovered will remain in the distillation tank. After a period of time, the solution remaining in the distillation tank can be manually poured out, and the precipitated salt The crystals will enter the solid collection barrel, and then the cold water in the reservoir will be pumped into the cooling tower as cooling water, which will be used to cool the acid gas and water vapor and then become liquid, and flow into the distillate collection barrel for recovery, so as to facilitate subsequent secondary utilization. In this way, the waste acid solution is preheated by the waste heat generated by the factory during processing, so that the waste acid solution can be heated more quickly during subsequent distillation, which is convenient for the distillation of the waste acid solution, making the distillation efficiency of the waste acid solution higher, and being able to make full use of the factory's waste heat, so that resource utilization is better and resource waste is avoided as much as possible. At the same time, the cold water can form a recyclable acid solution more quickly, making the gas cooling efficiency higher, thereby making the recovery efficiency of the waste acid solution higher.
[0018] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.
Claims
1. Waste acid resource optimization system using factory waste heat, It is characterized in that The invention comprises a waste acid pool, an acid extraction pump, a filter press, an evaporation reaction system, a cooling system and liquid and gas flow pipelines. The waste acid pool is connected to the acid inlet of the acid extraction pump through a pipeline, and the acid outlet of the acid extraction pump is connected to the filter press through a pipeline. The filter press is used to filter the waste acid solution. The evaporation reaction system comprises a preheating tank, a distillation tank and a solid collection barrel. The filter press filters out solid impurities in the waste acid and then enters the preheating tank. The preheating tank is used to preheat the waste acid. The preheating tank is connected to the distillation tank through a pipeline. The distillation tank is used to evaporate the waste acid. The distillation tank is connected to the solid collection barrel through a pipeline. The cooling system comprises a water reservoir, a cooling tower and a distillate collection barrel. The distillation tank is connected to the cooling tower through a pipeline. The cooling tower is connected to the water reservoir through a pipeline. The cooling tower is connected to the distillate collection barrel through a pipeline.
2. The waste acid resource optimization system using factory waste heat according to claim 1, It is characterized in that The distillate collection bucket is used to recover the cooled acid solution.
3. The waste acid resource optimization system using factory waste heat according to claim 1, It is characterized in that Cooling towers are used to cool evaporated acid gases and water vapor.