A hazardous chemical ingredient recycling device

Abstract

Sodium cyanide (NaCN) solution is a kind of toxic chemicals, mainly used in gold extraction, electroplating, chemical synthesis and other fields. A kind of dangerous chemical ingredient recycling device mainly comprises: sodium cyanide conveying port, distilled water conveying pipeline, ingredient box, first pipeline, second pipeline, waste gas treatment box, third pipeline, sodium cyanide storage pool, stirrer, ph testing device, strong pump, valve A, valve B, valve C, air pipe, air pump, water valve, valve D. Through the semi-automatic configuration of sodium cyanide solution, the industrial configuration is realized semi-automatically, and the risk of personnel harm is reduced. The hydrogen cyanide gas generated in the process of collecting ingredients is effectively collected, the production safety hidden danger is eliminated, and the manual operation risk is reduced.

Description

Technical Field

[0001] This utility model relates to the field of hazardous materials mixing technology, specifically to a device for the mixing, recycling, and reuse of highly toxic sodium cyanide solutions in the sodium cyanide industry. Technical Background

[0002] Sodium cyanide (NaCN) solution is a highly toxic chemical, primarily used in gold extraction, electroplating, and chemical synthesis. Due to its high toxicity (LD50 approximately 6 mg / kg, lethal dose for adults approximately 50-200 mg), its preparation must strictly adhere to safety regulations and laws to prevent leaks, contamination, or poisoning. Currently, sodium cyanide solution is primarily prepared manually without effective protective measures, significantly increasing the risks to transport personnel and seriously endangering their lives. A preparation method that reduces these risks and protects personnel is urgently needed. Furthermore, the mixing of sodium cyanide with water produces HCN gas, which requires exhaust gas treatment to prevent environmental pollution. Utility Model Content

[0003] The purpose of this invention is to achieve semi-automation in industrial processes by semi-automatically preparing sodium cyanide solution, thereby reducing the risk of harm to personnel. It effectively collects hydrogen cyanide gas generated during the preparation process, eliminating potential safety hazards and reducing the risks associated with manual operation.

[0004] A hazardous chemical ingredient recycling and reuse device mainly includes: a sodium cyanide conveying port, a distilled water conveying pipe, a mixing tank, a first pipe, a second pipe, an exhaust gas treatment tank, a third pipe, a sodium cyanide storage tank, a stirrer, a pH testing device, a high-power pump, valves A, B, and C, an exhaust pipe, an exhaust pump, a water valve, and valve D. Its features are: the sodium cyanide conveying port is movably connected to the top of the mixing tank; the distilled water conveying pipe is movably connected to the top of the mixing tank; one side of the first pipe is movably connected to the bottom of the mixing tank; one side of the exhaust gas treatment tank is movably connected to one side of the exhaust pipe; one side of the second pipe is movably connected to one side of the first pipe, and the other side of the second pipe is connected to the bottom of the mixing tank. The three pipes are connected in an active manner; one side of the third pipe is connected to the other side of the first pipe; the other side of the third pipe is connected to the sodium cyanide storage tank; the stirrer is connected to the top of the mixing box; the pH test device is welded to the end of the first pipe near the sodium cyanide storage tank; the power pump is welded inside the second pipe; valve A is welded at the junction of the first pipe and the mixing box; valve B is welded at the junction of the second pipe and the first pipe; valve C is welded at the junction of the third pipe and the first pipe; the air extraction pipe is connected in an active manner above the mixing box; the air extraction pump is welded inside the air extraction pipe; the water valve is welded inside the distilled water delivery pipe; valve D is located on the other side of the second pipe (5) and is fixedly connected to the junction of the mixing box (3).

[0005] The mixing tank is where sodium cyanide and water are mixed.

[0006] The stirrer is used to agitate the mixture of sodium cyanide and water, so that the sodium cyanide dissolves perfectly in the water to form a sodium cyanide solution.

[0007] The pH testing device measures the pH of the sodium cyanide solution in the first pipeline to determine if its concentration meets the standard. If the concentration meets the standard, the sodium cyanide solution will enter the sodium cyanide storage tank. If the concentration does not meet the standard, valve B will be opened, and the solution will enter the mixing tank through the second pipeline for reprocessing.

[0008] The high-powered pump provides the power for the sodium cyanide solution to enter the first pipe through the second pipe.

[0009] The exhaust pump provides power to draw the waste gas generated from sodium cyanide and water through the exhaust pipe to the waste gas treatment box.

[0010] Compared with the prior art, the present invention has the following advantages: The present invention adopts a semi-automatic batching method, which saves manpower and resources in the batching process and avoids the harm of toxic gases to people's health; The present invention has its own exhaust gas treatment, and pollutants generated during transportation will be collected, achieving a collection rate of over 99%. Attached Figure Description

[0011] Figure 1 This is a connection diagram of the present invention. Figure 1 In the middle section: 1. Sodium cyanide conveying pipeline; 2. Distilled water conveying pipeline; 3. Batching tank; 4. First pipeline; 5. Second pipeline; 6. Waste gas treatment tank; 7. Third pipeline; 8. Sodium cyanide storage tank; 9. Stirrer; 10. pH testing device; 11. Power pump; 12. Valve A; 13. Valve B; 14. Valve C; 15. Exhaust pipeline; 16. Exhaust pump; 17. Water valve; 18. Valve D. Detailed Implementation

[0012] The following description, in conjunction with the accompanying drawings of the embodiments of the present invention, describes a hazardous chemical ingredient recycling and reuse device, which mainly includes: 1. a sodium cyanide conveying pipeline; 2. a distilled water conveying pipeline; 3. a mixing tank; 4. a first pipeline; 5. a second pipeline; 6. a waste gas treatment tank; 7. a third pipeline; 8. a sodium cyanide storage tank; 9. a stirrer; 10. a pH testing device; 11. a high-power pump; 12. a valve A; 13. a valve B; 14. a valve C; 15. an exhaust pipe; 16. an exhaust pump; 17. a water valve. The sodium cyanide conveying port is movably connected to the top of the mixing tank; the distilled water conveying pipeline is movably connected to the top of the mixing tank; one side of the first pipeline is movably connected to the bottom of the mixing tank; one side of the waste gas treatment tank is movably connected to one side of the exhaust pipe; one side of the second pipeline is movably connected to the first... One side of the first pipe is movably connected to the second pipe, and the other side of the second pipe is movably connected to the bottom of the mixing tank; one side of the third pipe is movably connected to the other side of the first pipe; the other side of the third pipe is movably connected to the sodium cyanide storage tank; the stirrer is movably connected to the top of the mixing tank; the pH testing device is welded to the end of the first pipe near the sodium cyanide storage tank; the high-power pump is welded inside the second pipe; valve A is welded at the junction of the first pipe and the mixing tank; valve B is welded at the junction of the second pipe and the first pipe; valve C is welded at the junction of the third pipe and the first pipe; the exhaust pipe is movably connected to the top of the mixing tank; the exhaust pump is welded inside the exhaust pipe; the water valve is welded inside the distilled water delivery pipe; valve D is fixedly connected to the junction of the second pipe and the mixing tank on the other side. The technical solutions in the embodiments of this invention are clearly and completely described. Obviously, the described embodiments are only some embodiments of this invention, not all embodiments. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0013] The valve (4v210-08), high-power pump (150WQ120-10-7.5), pipeline (240918), agitator (YT), air pump (2BV), pH test device (FK-PH), spray nozzle (DN25), and water valve (ETW2684) mentioned in this utility model can all be obtained from the market or private orders.

[0014] Open the cover above the sodium cyanide inlet and feed the solid sodium cyanide into it. Distilled water enters through the distilled water supply pipe and is stirred by the agitator at the bottom of the mixing tank to ensure the sodium cyanide solution is thoroughly mixed. Waste gas is generated during mixing; turn on the vacuum pump, and the gas flows through the vacuum pipe into the waste gas treatment tank. After the sodium cyanide solution is fully mixed, open valve A to allow the solution to reach the pH testing device via the first pipe for pH testing. If the pH meets the standard, open valve C to allow the solution to enter the sodium cyanide storage tank. If the pH does not meet the standard, open valves B and D to return the solution to the mixing tank via the second pipe. Adjust the water flow rate using the water valve to bring the solution pH to the standard.

[0015] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A hazardous chemical ingredient recycling and reuse device, mainly comprising: Sodium cyanide delivery port (1), distilled water delivery pipeline (2), mixing box (3), first pipeline (4), second pipeline (5), waste gas treatment box (6), third pipeline (7), sodium cyanide storage tank (8), stirrer (9), pH test device (10), high-power pump (11), valve A (12), valve B (13), valve C (14), exhaust pipeline (15), exhaust pump (16), water valve (17), valve D (18) are characterized by: sodium cyanide delivery port ( 1) There is an openable cover on the top, and the conveying port is movably connected to the top of the mixing box; the distilled water conveying pipe (2) is movably connected to the top of the mixing box (3); one side of the first pipe (4) is movably connected to the bottom of the mixing box (3); one side of the exhaust gas treatment box (6) is movably connected to one side of the exhaust pipe (15); one side of the second pipe (5) is movably connected to one side of the first pipe (4), and the other side of the second pipe (5) is movably connected to the bottom of the mixing box (3). The third pipe (7) is movably connected to the other side of the first pipe (4); the other side of the third pipe (7) is movably connected to the sodium cyanide storage tank (8); the stirrer (9) is movably connected to the top of the mixing tank (3); the pH test device (10) is welded to the end of the first pipe (4) near the sodium cyanide storage tank (8); the high-power pump (11) is welded inside the second pipe (5); valve A (12) is welded to the junction of the first pipe (4) and the mixing tank (3); valve B ( 13) Welded at the junction of the second pipe (5) and the first pipe (4); valve C (14) welded at the junction of the third pipe (7) and the first pipe (4); the air extraction pipe (15) is movably connected above the mixing box (3); the air extraction pump (16) is welded to the air extraction pipe (15) and fixedly connected; the water valve (17) is welded to the distilled water conveying pipe (2) and fixedly connected; valve D (18) is located on the other side of the second pipe (5) and fixedly connected to the mixing box (3).

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