A pickling house liquor sampling device

Abstract

The utility model relates to a pickling room liquid medicine sampling device belongs to metallurgical industry section steel hot dip process equipment technical field. Technical scheme is: the inner pool (3) is multiple, and the different liquid medicine (2) is stored in each inner pool (3), and all through the pool pier (5) and sit on the outer pool (4), and the grating corridor (10) is arranged between the inner pool (3) and the outer pool (4), and the outer pool (4) top is the pickling room (7), and the pickling room (7) roof opening connects the air suction pipeline (8), and is equipped with water mist spray system (9), and the hole is opened in the inner pool (3) side wall, and the pool body main pipeline (11) is led out, and the pool body main pipeline connects two direction branch: one branch is compressed air inlet pipeline (15), and the other branch is sampling circuit (18). The utility model has the beneficial effects that: workers do not need to wear protective equipment to enter the acid room closed room, and can sample in the open air, reduce the security risk formed by worker sampling during production operation, occupational health injury.

Description

Technical Field

[0001] This utility model relates to a sampling device for chemical solutions in an acid pickling room, belonging to the technical field of hot-dip galvanizing process equipment for steel profiles in the metallurgical industry. Background Technology

[0002] Currently, the hot-dip galvanizing of steel profiles both domestically and internationally generally employs the drying solvent method. The workpiece undergoes pickling to remove surface iron oxide, followed by rinsing with water to remove the acid. Then, a layer of solvent is applied to the steel surface, and after low-temperature drying, it is immersed in a zinc bath to complete the hot-dip galvanizing process. These chemical cleaning processes are carried out centrally, with different chemicals stored in tank-within-tanks within the pickling room. This ensures no leakage of chemicals that could contaminate the soil. The pickling room is a completely enclosed space, and the mixed gas inside is extracted, treated, and discharged in compliance with environmental protection requirements.

[0003] Some highly automated production lines prepare the chemical solution outside a closed room and then inject it into the production line. However, the daily concentration management of the chemical solution in the pool requires taking samples for testing. Workers must wear protective gear to enter the closed room, exposing their bodies to the volatile atmosphere inside. Scooping liquid from the deep pool poses a risk of worker injury. Utility Model Content

[0004] The purpose of this invention is to provide a sampling device for acid pickling solutions, which allows sampling to be performed outdoors without the need for protective gear when entering the enclosed acid pickling room, thereby reducing safety hazards and occupational health injuries caused by workers taking samples during production and solving the problems existing in the background technology.

[0005] The technical solution of this utility model is:

[0006] A sampling device for pickling solutions in an acid pickling room includes an inner tank, an outer tank, and an acid pickling room. There are multiple inner tanks, each containing a different solution. Each inner tank sits on the outer tank via a pier. A grid corridor is provided between each inner and outer tank. The pickling room is located above the outer tank. The roof of the pickling room has openings for connecting to a suction pipe and is equipped with a water mist spray system. Openings are made on the side walls of each inner tank, leading out to a main tank pipeline. The main tank pipeline is connected to two branch lines via a tee: one branch is a compressed air inlet pipeline, and the other branch is a sampling circuit.

[0007] Furthermore, a compressed air gate valve is installed on the compressed air inlet pipeline, and a sampling gate valve is installed on the sampling circuit.

[0008] Furthermore, a sampling bottle is installed below the end of the sampling circuit pipeline.

[0009] The beneficial effects of this utility model are: workers do not need to wear protective gear, can enter the closed acid room and take samples outdoors, reducing safety hazards and occupational health injuries caused by workers taking samples during production operations. Attached Figure Description

[0010] Figure 1 This is a cross-sectional view of a single tank of this utility model inside the acidification chamber;

[0011] Figure 2 This is a schematic diagram showing the sampling distribution of all tanks in the acidification chamber of this utility model;

[0012] In the diagram: 1. Workpiece; 2. Solution; 3. Inner tank; 4. Outer tank; 5. Tank pier; 6. Mist; 7. Pickling room; 8. Suction pipe; 9. Water mist spray system; 10. Grille corridor; 11. Main tank pipe; 12. Sampling gate valve; 13. Sampling bottle; 14. Compressed air pipe; 15. Compressed air inlet pipe; 16. Compressed air gate valve; 17. Tee; 18. Sampling pipe; 21. Low acid tank; 22. High acid tank; 23. Rinsing tank; 24. Spare tank; 25. Auxiliary plating tank. Detailed Implementation

[0013] The present invention will be further described below with reference to the accompanying drawings and examples.

[0014] See attached document Figures 1-2 A sampling device for acid pickling solutions includes an inner pool 3, an outer pool 4, and an acid pickling room 7. There are multiple inner pools 3, each containing a different chemical solution 2. Each inner pool 3 is located on the outer pool 4 via a pool support 5. A grid corridor 10 is provided between each inner pool 3 and the outer pool 4. The acid pickling room 7 is located above the outer pool 4. The roof of the acid pickling room 7 has an opening connected to an air intake pipe 8 and is equipped with a water mist spray system 9. An opening is made in the side wall of each inner pool 3, leading out to the main pool pipe 11. The main pool pipe 11 is connected to two branch lines via a tee 17: one branch is a compressed air inlet pipe 15, and the other branch is a sampling circuit 18.

[0015] In this example, refer to the appendix. Figures 1-2 The most crucial aspect of this invention is the design of the main sampling pipeline for the liquid, which converts the potential energy of the liquid into kinetic energy. Utilizing the fact that the acid pool is located above ground, a pool-within-a-pool structure must be employed. A sampling gate valve 12 is installed outdoors at an elevation approximately 500 mm higher than the pool's opening. The height difference between the end of the sampling pipeline and the worker's position allows for the placement of a sampling bottle 13. A tee 17 is then installed at the front end of the gate valve 12. A compressed air pipeline 15 is connected above the tee 17. From the tee 17, a pipe connects first to the gate valve 16, and then to the workshop's compressed air pipeline 14.

[0016] See attached document Figure 1 , 2Number 3 is the inner pool, a single pool. Number 4 is the outer pool. The inner pool 3 rests on the outer pool 4 via pool piers 5. Above the outer pool 4 is the pickling room 7. Each individual pool contains a different chemical solution 2. When the workpiece 1 is placed in the chemical solution, the generated mist 6 diffuses throughout the entire pickling room. The mist is then treated by the water mist spray system 9 through the exhaust pipe 8 through the opening in the top of the pickling room before being discharged into the atmosphere through the exhaust chimney. A grid corridor 10 is provided between the inner pool 3 and the outer pool 4 for temporary passage.

[0017] An opening is made at point A on the side wall of the inner pool 3 to lead out the main pool pipeline 11. The main pool pipeline goes up to the ground and then passes through a tee 17 to connect to two branch lines. One branch line is a compressed air inlet pipeline 15, which is connected to the workshop compressed air pipeline 14. A compressed air gate valve 16 is installed on the compressed air inlet pipeline 15. The other branch line is a sampling circuit 18, with a sampling gate valve 12 installed on the pipeline and a sampling bottle 13 placed at the lower end of the pipeline.

[0018] After the worker places the sampling bottle below the outlet of the sampling circuit 18, he turns on the compressed air gate valve 16. Compressed air enters the main pipeline from the tee 17 and discharges the liquid in the pipeline. After a few seconds, he turns off the compressed air gate valve 16 and gently turns on the sampling gate valve 12. The medicine in the inner pool slowly flows into the sampling bottle 13. After the sampling is completed, he turns off the sampling gate valve 12.

Claims

1. A sampling device for pickling solution in an acid pickling room, comprising an inner pool (3), an outer pool (4), and an acid pickling room (7), wherein there are multiple inner pools (3), each inner pool (3) contains a different solution (2), each inner pool (3) is situated on the outer pool (4) via a pool support (5), a grid corridor (10) is provided between each inner pool (3) and the outer pool (4), the outer pool (4) is above the acid pickling room (7), the roof of the acid pickling room (7) has an opening connected to a suction pipe (8), and is equipped with a water mist spraying system (9), characterized in that: Holes are made in the side wall of each inner pool (3) and the main pool pipeline (11) is led out. The main pool pipeline (11) is connected to two branch lines via a tee (17): one branch is the compressed air inlet pipeline (15) and the other branch is the sampling circuit (18).

2. The acid pickling room chemical solution sampling device according to claim 1, characterized in that: A compressed air gate valve (16) is installed on the compressed air inlet pipeline (15), and a sampling gate valve (12) is installed on the sampling circuit (18).

3. The acid pickling room chemical solution sampling device according to claim 2, characterized in that: A sampling bottle (13) is installed below the end of the sampling circuit (18) pipeline.

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