The environmental protection technology and equipment of the sour mist pollution during the rust removal of steel
A pickling and steel technology, applied in the field of steel rust removal and pickling process, can solve problems such as adverse effects on the survival of animals and plants, affecting the health of workers, and reducing the mechanical properties of steel, so as to improve the quality of pickling products, reduce potential safety hazards, The effect of saving hydrochloric acid
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0111] 1) According to the ingredients and proportions listed in Table 1 and Table 2, mix the raw materials to obtain the acid wash and extender used.
[0112] 2) Pour 2L of pickling solution into the pickling soaking tank, and adjust the temperature of the pickling solution to the working temperature shown in Table 1 and Table 2.
[0113] 3) 5 pieces of 124X78mm stainless steel plates whose front and back surfaces were burned to black with a flame were weighed and then immersed in a pickling soaking tank for pickling. The pickling time for each stainless steel plate was 5 minutes. Take it out from the pickling solution, and manually add 200ml of supplement 1 to the pickling solution every 10 minutes during the pickling process;
[0114] 4) Use clean water to rinse the residual pickling solution attached to the surface of the stainless steel plate, then dry it with hot air to a constant weight and weigh it; observe the metal surface after pickling and calculate the pickling sp...
Embodiment 2
[0116] 1) According to the ingredients and proportions listed in Table 1 and Table 2, mix the raw materials to obtain the acid wash and extender used.
[0117] 2) Pour 2L of pickling solution into the pickling soaking tank 2, and adjust the temperature of the pickling solution to the working temperature shown in Table 1 and Table 2.
[0118] 3) Weigh 5 stainless steel plates with a size of 124 × 78 mm and burn them to black on both sides, and then immerse them in pickling solution in turn for pickling. The pickling time for each stainless steel plate is 5 minutes. Take it out from the pickling solution;
[0119] Use the automatic detection and control machine 1 to control the addition of the supplementary liquid through the time program. When the interval time set value specified in Table 1 and Table 2 is reached, the acid-resistant pump 4 is automatically turned on to control the extraction of supplementary liquid from the supplementary liquid tank 3. Throw in 200ml of suppl...
Embodiment 3-5
[0122] The test method is the same as Example 2, and its difference is that the composition of the pickling solution and / or the supplementary solution and the working temperature during the coordination and pickling are different, see Table 1 and Table 2 for details.
[0123] The observed results of the metal surface after pickling and the average pickling speed are recorded in Table 3.
PUM
| Property | Measurement | Unit |
|---|---|---|
| Bronsted acidity | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More