Mechanism for detecting content of cyanide in solid waste

Abstract

The invention discloses a mechanism for detecting the content of cyanide in solid waste, and belongs to the technical field of cyanide detection.The mechanism comprises a supporting bottom plate and a cylinder installed on the upper surface of the supporting bottom plate, a shaft rod of a stirring assembly is arranged at the inner bottom end of the cylinder in a bearing penetrating mode, and a servo motor is further installed on the supporting bottom plate through a motor support; the lower end of a shaft rod on the stirring assembly is connected with the shaft end of a servo motor through a first belt transmission structure, a feeding hopper is arranged on the barrel, a reciprocating telescopic mechanism is further arranged on the barrel, and a discharging door is further arranged on the barrel. When the cyanide gas detection device is used, gas can be extruded to a detection part of the detection assembly, so that cyanide gas can be in full contact with the detection assembly, the accuracy of a detection result is improved, in addition, in the process of detecting the cyanide content, the cyanide gas can be conveyed to the treatment tank to be treated, and the detection efficiency is improved. Therefore, the energy consumption of the detection mechanism is reduced, and energy conservation and emission reduction are facilitated.

Description

Technical Field

[0001] This invention relates to the field of cyanide detection technology, specifically to a cyanide content detection device for solid waste. Background Technology

[0002] In modern industrial systems, cyanide is an important chemical raw material widely used in electroplating, metallurgy, gold mining, organic synthesis and many other fields. However, its high toxicity poses a great threat to the environment and human health. During industrial production, solid waste containing cyanide is inevitably generated. If not properly disposed of, the cyanide in this solid waste may enter the soil and water bodies through rainwater leaching, seepage and other means, thereby causing serious pollution to the ecological environment and posing potential risks to the lives of surrounding residents. Solid waste cyanide content testing agencies can detect the cyanide content in solid waste, and thus can prioritize the removal of cyanide during solid waste treatment to prevent cyanide from seeping into soil or water bodies. In addition, it can also reduce the harm of toxic cyanide to workers. Existing solid waste cyanide content detection devices often fail to provide accurate results. For example, CN218003376U discloses a solid waste cyanide content detection and treatment device that uses a baffle to create a sealed environment for the detector, thereby improving the accuracy of cyanide detection. However, during operation, the solid waste is stirred before detection, and the solid waste remains stationary during the detection process. This results in cyanide gas remaining trapped inside the solid waste and not being fully released to the detector. Consequently, the cyanide gas does not make sufficient contact with the detector, compromising the accuracy of the detection results. In addition, the existing technology mentioned above uses a suction fan to draw in cyanide gas and then adsorbs it with activated carbon. This method increases energy consumption and is not conducive to energy conservation and emission reduction. Therefore, there is a need for an institution to test the cyanide content in solid waste in order to solve the above problems. Summary of the Invention

[0003] The purpose of this invention is to provide a cyanide content detection device in solid waste, so as to solve the problems mentioned in the background art, such as low accuracy of detection results and increased energy consumption when processing cyanide gas.

[0004] To achieve the above objectives, the present invention provides the following technical solution: A cyanide content detection mechanism for solid waste includes a supporting base plate and a cylinder mounted on its upper surface. A shaft of a stirring assembly is installed through a bearing at the inner bottom of the cylinder. A servo motor is mounted on the supporting base plate via a motor bracket. The lower end of the shaft on the stirring assembly is connected to the shaft end of the servo motor via a belt drive structure. The cylinder has a feed hopper and a reciprocating telescopic mechanism. It also has a discharge gate, which is movably and sealingly connected to a discharge port on the cylinder. The lower end of the shaft on the stirring assembly is connected to the reciprocating telescopic mechanism via a second belt drive structure. The cylindrical structure is positioned above 1 / 5 of the cylinder's height to facilitate the installation of the first and second belt drive structures below 1 / 5 of the cylinder's height. A detection mechanism is installed directly above the cylinder and connected to the reciprocating telescopic mechanism. The upper surface of the supporting base plate also has a treatment tank for handling toxic gases.

[0005] Preferably, both the first belt drive structure and the second belt drive structure extend through the portion of the cylinder below 1 / 5 of its height.

[0006] Preferably, the reciprocating telescopic mechanism includes a limiting block fixedly connected to the outside of the cylinder, and a movable tube movably passes through the limiting block. A reciprocating screw is threadedly sleeved at the lower end of the movable tube, and the reciprocating screw is connected to the belt drive structure two. The lower end bearing of the reciprocating screw is connected to the upper surface of the support base plate.

[0007] Preferably, a limiting groove is provided in the through hole of the limiting block through which the movable tube passes, and a strip-shaped limiting strip parallel to its axis is provided on the movable tube. The strip-shaped limiting strip is matched and engaged through the limiting groove to limit the movable tube and prevent it from rotating.

[0008] Preferably, the detection mechanism includes a connecting plate fixedly connected to the upper end of the movable tube at one end, and a supporting tube fixedly extending through the upper end of the other end of the connecting plate, and a piston disc fixedly connected to the outer side of the lower end of the supporting tube.

[0009] Preferably, the piston disc is composed of three coaxial discs, the diameter of the uppermost and lowermost discs is larger than the diameter of the middle disc, and the three discs form an I-shaped structure. The diameters of the uppermost and lowermost discs are equal and their diameters match the minimum diameter inside the cylinder.

[0010] Preferably, a rubber tube is provided between the uppermost and lowermost discs, and the rubber tube is sleeved on the outer side of the middle disc. A piston tube is fixedly connected at an equal angle to the lower middle outer side of the support tube, and the piston end of the piston rod is seamlessly slidably connected to the inner side of the open end of the piston tube. A roller assembly is provided at the rod end of the piston rod, and a spring is nested on the outer side of the rod end of the piston rod between the roller assembly and the open end of the corresponding piston tube. Each piston tube is connected to the rubber tube through an air inlet pipe, which passes through the piston disc.

[0011] Preferably, the upper end of the support tube is connected to one end of the air guide tube via a one-way valve, and a detection component is sealed and installed through the air guide tube. The other end of the air guide tube extends below the liquid surface in the treatment tank. The middle part of the air guide tube is a spiral hose, which facilitates the upper end to move up and down with the connecting plate.

[0012] Preferably, the detection mechanism further includes a connecting pipe disposed on the cylinder, the height of the connecting pipe being lower than the height of the feed hopper, and a one-way valve being disposed on the connecting pipe.

[0013] Preferably, the inner diameter of the cylinder below the feed hopper is smaller than the inner diameter of the cylinder above the feed hopper, which facilitates the inner side of the cylinder below the feed hopper to squeeze the roller assembly.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: When in use, the cyanide content detection mechanism in solid waste allows gas to be compressed to the detection area of ​​the detection component, thus facilitating sufficient contact between the cyanide gas and the detection component, which helps improve the accuracy of the detection results. Furthermore, during the cyanide content detection process, the cyanide gas is transported to a treatment tank for processing, thereby reducing the energy consumption of the detection mechanism and contributing to energy conservation and emission reduction. 1. When the belt drive structure 1 drives the stirring component to rotate alternately in both directions, it can quickly stir the solid waste, making the solid waste evenly mixed. When the stirring component rotates, it can drive the belt drive structure 2 to drive the reciprocating screw to rotate. During the rotation of the reciprocating screw, the overall structure consisting of the movable tube, connecting plate, support tube and piston disc can move back and forth in the vertical direction. After the piston disc moves down to the position below the feed hopper, it will squeeze the space formed between itself and the inside of the cylinder, so that the cyanide gas can be squeezed into the support tube. After the cyanide gas passes through the one-way valve 2, it enters the gas guide pipe for transportation, which can ensure that the cyanide gas is evenly and fully in contact with the detection part of the detection component, thereby helping to improve the accuracy of detection. 2. The cyanide transported by the gas guide pipe will eventually enter the treatment tank, where the cyanide in the gas will be adsorbed. As the piston disc moves upward, the external gas will enter the interior of the cylinder through the connecting pipe after passing through the one-way valve. The piston disc moves up and down below the feed hopper, continuously drawing the external gas into the interior of the cylinder and continuously transporting the gas inside the cylinder to the treatment tank for processing. During this process, the gas can be detected by the detection component until the content of cyanide in the gas detected by the detection component is not enough to endanger the health of the workers. At this time, the discharge door can be opened to allow the solid waste to be discharged from the discharge port. 3. When the piston disc moves to a position below the feed hopper, the roller assembly is squeezed, which causes the piston rod to move into the piston tube. During this process, the gas in the piston tube is transported to the rubber tube through the air inlet pipe, causing the rubber tube to expand. This helps to block the gap between the piston disc and the inner wall of the cylinder, and helps to ensure that the gas containing cyanide can only be discharged to the treatment tank through the support pipe during the downward movement of the piston disc. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main structure of the present invention; Figure 2 This is a schematic diagram of the rear view structure of the present invention; Figure 3 This is a schematic diagram of the connection structure between the servo motor and the reciprocating lead screw of the present invention; Figure 4 This is a partial cross-sectional view of the present invention; Figure 5 For the present invention Figure 4 Enlarged structural diagram of point A in the middle; Figure 6 For the present invention Figure 4 Enlarged structural diagram of point B; Figure 7 This is a cross-sectional view of the connection structure between the piston disc and the air guide tube of the present invention. Figure 8 For the present invention Figure 7 Enlarged structural diagram of point C; Figure 9 This is a schematic diagram of the connection structure between the servo motor and the stirring assembly of the present invention.

[0016] In the diagram: 1. Support base plate; 2. Cylinder; 3. Processing tank; 4. Motor bracket; 5. Servo motor; 6. Feed hopper; 7. Limit block; 8. Movable tube; 9. Connecting plate; 10. Support tube; 11. Piston disc; 12. Air guide tube; 13. Detection component; 14. Discharge gate; 15. Belt drive structure one; 16. Mixing component; 17. Belt drive structure two; 18. Reciprocating screw; 19. Connecting pipe; 20. One-way valve one; 21. Rubber hose; 22. Piston tube; 23. Piston rod; 24. Roller assembly; 25. Spring; 26. Air inlet pipe; 27. One-way valve two. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] Please see Figures 1-9 The present invention provides the following technical solution: Example 1: To address the problem of inaccurate detection results in previous solid waste cyanide content detection devices, the following technical solution is provided: a solid waste cyanide content detection device includes a supporting base plate 1 and a cylinder 2 mounted on its upper surface. A shaft of a stirring assembly 16 is installed through a bearing at the inner bottom of the cylinder 2. A servo motor 5 is mounted on the supporting base plate 1 via a motor bracket 4. The lower end of the shaft on the stirring assembly 16 is connected to the shaft end of the servo motor 5 via a belt drive structure 15. A feed hopper 6 is provided on the cylinder 2, as well as a reciprocating telescopic mechanism and a discharge gate 1. 4. The discharge gate 14 is movably and sealed to the discharge port opened on the cylinder 2. The lower end of the shaft on the stirring assembly 16 is also connected to the reciprocating telescopic mechanism through the second belt drive structure 17. The cylinder structure of the cylinder 2 is above 1 / 5 of the height of the cylinder 2, which facilitates the installation of the first belt drive structure 15 and the second belt drive structure 17 below 1 / 5 of the height of the cylinder 2. A detection mechanism is installed on the top of the cylinder 2 and is connected to the reciprocating telescopic mechanism. The upper surface of the support base plate 1 is also provided with a treatment tank 3 for treating toxic gases. The first belt drive structure 15 and the second belt drive structure 17 both movably penetrate the part below 1 / 5 of the height of the cylinder 2.

[0019] The reciprocating telescopic mechanism includes a limiting block 7 fixedly connected to the outside of the cylinder 2, and a movable tube 8 movably passes through the limiting block 7. A reciprocating screw 18 is threaded onto the lower end of the movable tube 8, and the reciprocating screw 18 is connected to a belt drive structure 17. The lower end of the reciprocating screw 18 is bearing-connected to the upper surface of the support base plate 1. A limiting groove is provided in the through hole of the limiting block 7 through which the movable tube 8 passes. A strip-shaped limiting strip parallel to its axial direction is provided on the movable tube 8. The strip-shaped limiting strip matches and engages with the limiting groove to limit the movement of the movable tube 8 and prevent it from rotating. Figures 1-3 When the servo motor 5 is working, it drives the stirring component 16 to rotate through the belt drive structure 15. During the rotation of the stirring component 16, it also drives the reciprocating screw 18 to rotate. When the stirring component 16 rotates, it can stir the solid waste and make it evenly mixed. By rotating the stirring component 16 in both directions, it can not only facilitate the thorough mixing of solid waste, but also make the piston plate 11 move up and down to prevent the piston plate 11 from falling below the feed hopper 6, thus helping to continuously add solid waste.

[0020] The testing mechanism includes a connecting plate 9 fixedly connected to the upper end of the movable tube 8 at one end, and a support tube 10 fixedly extending through the upper end of the connecting plate 9 at the other end. A piston disc 11 is fixedly connected to the outer side of the lower end of the support tube 10. The piston disc 11 is composed of three coaxial discs. The diameters of the uppermost and lowermost discs are larger than the diameter of the middle disc, and the three discs form an I-shaped structure. The diameters of the uppermost and lowermost discs are equal, and their diameters match the minimum diameter of the inner side of the cylinder 2. The upper end of the support pipe 10 is connected to one end of the air guide pipe 12 via a one-way valve 27. A detection component 13 is sealed and installed through the air guide pipe 12. The other end of the air guide pipe 12 extends below the liquid level in the treatment tank 3. The middle part of the air guide pipe 12 is a spiral flexible tube, facilitating the upper end's vertical movement with the connecting plate 9. The detection mechanism also includes a connecting pipe 19 mounted on the cylinder 2. The height of the connecting pipe 19 is lower than the height of the feed hopper 6. A one-way valve 20 is installed on the connecting pipe 19. Figures 4-8 The servo motor 5 rotates, causing the reciprocating screw 18 to rotate until the piston disc 11 descends below the feed hopper 6. As the piston disc 11 moves downward below the feed hopper 6, it compresses the gas containing cyanide. This gas then passes through the support pipe 10 and the one-way valve 27 into the gas guide pipe 12. The gas containing cyanide in the gas guide pipe 12 will have sufficient and uniform contact with the detection component 13, which helps the detection component 13 to accurately detect the cyanide content in the solid waste. After passing through the detection component 13, the cyanide gas will enter the treatment tank 3 for treatment, avoiding direct discharge into the outside world and causing harm to the environment and workers.

[0021] Example 2: To address the problem in Example 1 where gaps easily form between the piston disc 11 and the cylinder 2, causing cyanide-containing gas to not only be discharged from the gas guide pipe 12 to the treatment tank 3 when the piston disc 11 moves downward, the following technical solution is provided: Specifically, a rubber tube 21 is provided between the uppermost and lowermost discs, and the rubber tube 21 is sleeved on the outer side of the middle disc. A piston tube 22 is fixedly connected at an equal angle to the outer side of the lower middle part of the support pipe 10, and the piston end of the piston rod 23 is seamlessly slidably connected to the inner side of the open end of the piston tube 22. A roller assembly 24 is provided at the rod end of the piston rod 23, and a spring 25 nested on the outer side of the rod end of the piston rod 23 is provided between the roller assembly 24 and the corresponding open end of the piston tube 22. Each piston tube 22 is connected to the rubber tube 21 through an air inlet pipe 26, which passes through the piston disc 11.

[0022] The inner diameter of the portion of the cylinder 2 below the feed hopper 6 is smaller than the inner diameter of the portion above the feed hopper 6, which facilitates the inner side of the cylinder 2 below the feed hopper 6 to squeeze the roller assembly 24. Figures 4-6 When the piston disc 11 moves below the feed hopper 6, the roller assembly 24 will be squeezed, which will cause the piston rod 23 to move into the piston tube 22. During this process, the gas in the piston tube 22 will enter the rubber tube 21 through the air inlet pipe 26, which will cause the rubber tube 21 to expand, so that the rubber tube 21 blocks any gaps that may be generated between the piston disc 11 and the cylinder 2, ensuring that the gas containing cyanide can only enter the treatment tank 3 through the air guide pipe 12, thereby avoiding the overflow of the treatment tank 3 and causing harm to the environment and personnel.

[0023] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0024] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cyanide content detection mechanism for solid waste, comprising a supporting base plate (1) and a cylinder (2) mounted on its upper surface, characterized in that: The inner bottom bearing of the cylinder (2) is through which the shaft of the stirring assembly (16) is installed. A servo motor (5) is also installed on the support base plate (1) via a motor bracket (4). The lower end of the shaft on the stirring assembly (16) is connected to the shaft end of the servo motor (5) via a belt drive structure (15). The cylinder (2) is provided with a feed hopper (6) and a reciprocating telescopic mechanism. The cylinder (2) is also provided with a discharge gate (14). The discharge gate (14) is connected to the discharge port opened on the cylinder (2). The dynamic sealing connection is provided. The lower end of the shaft on the stirring assembly (16) is also connected to the reciprocating telescopic mechanism through the second belt drive structure (17). The cylindrical structure of the cylinder (2) is above 1 / 5 of the height of the cylinder (2), which facilitates the installation of the first belt drive structure (15) and the second belt drive structure (17) below 1 / 5 of the height of the cylinder (2). A detection mechanism is installed directly above the cylinder (2) and is connected to the reciprocating telescopic mechanism. The upper surface of the support base plate (1) is also provided with a treatment tank (3) for treating toxic gases.

2. The cyanide content detection device in solid waste according to claim 1, characterized in that: Both the belt drive structure one (15) and the belt drive structure two (17) extend through the part of the cylinder (2) below 1 / 5 of its height.

3. The cyanide content detection device in solid waste according to claim 2, characterized in that: The reciprocating telescopic mechanism includes a limiting block (7) fixedly connected to the outside of the cylinder (2), and a movable tube (8) is movably passed through the limiting block (7). The lower end of the movable tube (8) is threaded with a reciprocating screw (18), and the reciprocating screw (18) is connected to the belt drive structure (17). The lower end of the reciprocating screw (18) is connected to the upper surface of the support base plate (1).

4. The cyanide content detection device in solid waste according to claim 3, characterized in that: The limiting block (7) has a limiting groove in the through hole through which the movable tube (8) passes. The movable tube (8) has a strip-shaped limiting strip parallel to its axis. The strip-shaped limiting strip is matched and engaged with the limiting groove to limit the movable tube (8) and prevent it from rotating.

5. The cyanide content detection device in solid waste according to claim 4, characterized in that: The detection mechanism includes a connecting plate (9) fixedly connected to the upper end of the movable tube (8) at one end, and the other end of the connecting plate (9) is fixedly connected to the upper end of the support tube (10), and a piston disc (11) is fixedly connected to the outer side of the lower end of the support tube (10).

6. The cyanide content detection device in solid waste according to claim 5, characterized in that: The piston disc (11) is composed of three coaxial discs. The diameter of the uppermost and lowermost discs is larger than that of the middle disc. The three discs form an I-shaped structure. The diameters of the uppermost and lowermost discs are equal and match the minimum diameter of the inner side of the cylinder (2).

7. The cyanide content detection device in solid waste according to claim 6, characterized in that: A rubber tube (21) is provided between the uppermost and lowermost discs, and the rubber tube (21) is sleeved on the outer side of the middle disc. A piston tube (22) is fixedly connected at an equal angle to the outer side of the lower middle part of the support tube (10). The piston end of the piston rod (23) is seamlessly slidably connected to the inner side of the opening end of the piston tube (22). A roller assembly (24) is provided at the rod end of the piston rod (23). A spring (25) nested on the outer side of the rod end of the piston rod (23) is provided between the roller assembly (24) and the opening end of the corresponding piston tube (22). Each piston tube (22) is connected to the rubber tube (21) through an air inlet pipe (26). The air inlet pipe (26) is provided through the piston disc (11).

8. The cyanide content detection device in solid waste according to claim 7, characterized in that: The upper end of the support tube (10) is connected to one end of the air guide tube (12) through a one-way valve (27), and a detection component (13) is installed on the air guide tube (12) through a sealed passage. The other end of the air guide tube (12) extends into the treatment tank (3) below the liquid level. The middle part of the air guide tube (12) is a spiral hose, which facilitates the upper end of the tube to move up and down with the connecting plate (9).

9. The cyanide content detection device in solid waste according to claim 8, characterized in that: The detection mechanism also includes a connecting pipe (19) set on the cylinder (2), the height of the connecting pipe (19) being lower than the height of the feed hopper (6), and a one-way valve (20) is set on the connecting pipe (19).

10. A cyanide content detection device in solid waste according to claim 8, characterized in that: The inner diameter of the part of the cylinder (2) below the feed hopper (6) is smaller than the inner diameter of the part above the feed hopper (6), so that the inner side of the cylinder (2) below the feed hopper (6) can squeeze the roller assembly (24).

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