A cyanide breaking catalyst preparation reaction device

Abstract

The utility model relates to the technical field of broken cyanogen catalyst preparation, specifically relates to a kind of broken cyanogen catalyst preparation reaction device, including support frame, impregnation device, conveying device and flash device, the support frame is installed with impregnation device, the impregnation device is used to impregnation stirring in the solution containing nickel ion to molecule sieve, make nickel ion evenly distribute on the surface of molecule sieve;The conveying device is installed at the bottom of the impregnation device, and the conveying device is used to convey the molecule sieve after impregnation to flash device and carry out further processing;The support frame is installed with flash device, and the flash device is used to high-temperature pressure reduction drying to the molecule sieve after impregnation.

Description

Technical Field

[0001] This utility model relates to the field of cyanide-breaking catalyst preparation technology, specifically to a cyanide-breaking catalyst preparation reaction device. Background Technology

[0002] Cyanide-removing catalysts are highly efficient catalytic materials specifically designed for removing cyanide from wastewater. Through catalytic oxidation or catalytic decomposition, they convert highly toxic cyanide into non-toxic or low-toxic substances such as nitrogen or carbonates, thereby achieving the harmless treatment of cyanide-containing wastewater. These catalysts typically exhibit high activity, high selectivity, and good stability, and can operate efficiently over a wide pH range and at varying temperatures. Currently, the existing high-temperature flash evaporation process for preparing cyanide-breaking catalysts typically requires the three steps of soaking, drying, and high-temperature flash evaporation to be completed in separate devices. This decentralized operation method has several problems: First, the operation is cumbersome, requiring frequent material transfer between multiple devices, increasing operational difficulty and time costs; second, the need for multiple independent devices results in a large footprint and low space utilization; furthermore, the high costs of equipment purchase, installation, and maintenance increase production costs.

[0003] Therefore, the present invention provides a reaction apparatus for preparing cyanide-breaking catalyst to solve the above problems. Utility Model Content

[0004] The technical problem this invention aims to solve is as follows: In existing high-temperature flash evaporation processes for preparing cyanide-breaking catalysts, the three steps of soaking, drying, and high-temperature flash evaporation are typically completed in separate equipment. This decentralized operation method has several problems: First, the operation is cumbersome, requiring frequent material transfer between multiple devices, increasing operational difficulty and time costs; second, the need for multiple independent devices results in a large footprint and low space utilization; furthermore, the high costs of equipment purchase, installation, and maintenance increase production costs.

[0005] This utility model provides the following technical solution: a reaction apparatus for preparing a cyanide-breaking catalyst, comprising a support frame, an impregnation device, a conveying device, and a flash evaporation device. The impregnation device is installed on the support frame and is used to impregnate and stir a molecular sieve in a solution containing nickel ions, so that the nickel ions are evenly distributed on the surface of the molecular sieve. The conveying device is installed at the bottom of the impregnation device and is used to convey the impregnated molecular sieve to the flash evaporation device for further processing. The flash evaporation device is installed on the support frame and is used to dry the impregnated molecular sieve at high temperature and pressure.

[0006] Preferably, the impregnation device includes an impregnation cylinder, a feed pipe, a liquid inlet pipe, a liquid outlet pipe, a water pump motor, a stirring mechanism, and a discharge pipe. The impregnation cylinder is fixedly installed on the support frame. The feed pipe and the liquid inlet pipe are installed on one side above the impregnation cylinder. The liquid outlet pipe is installed at the bottom of the impregnation cylinder. The water pump motor is installed on the liquid outlet pipe. The stirring mechanism is installed inside the impregnation cylinder. The discharge pipe is installed at the bottom of the impregnation cylinder.

[0007] Preferably, the stirring mechanism includes a stirring motor, a drive rod, and stirring rods. The stirring motor is installed on the top of the impregnation cylinder, the drive rod is installed at the output end of the stirring motor, and stirring rods are arranged in an array on the drive rod.

[0008] Preferably, the impregnation cylinder is equipped with a sieving funnel for the initial separation of water and molecular sieve.

[0009] Preferably, the conveying device includes a conveying pipe, a control valve, a conveying shaft, and conveying blades. The conveying pipe is installed at the bottom of the discharge pipe, and the control valve is installed at the bottom of the conveying pipe. The conveying shaft is installed at the bottom of the drive rod, and the conveying blades are spirally arrayed on the conveying shaft.

[0010] Preferably, the flash evaporation device includes an input pipe, a flash evaporation chamber, a pressure reducing valve, a heating plate, a collection chamber, and an exhaust port. The input pipe is installed on the delivery pipe, and the other end of the input pipe is equipped with the flash evaporation chamber. The flash evaporation chamber is fixedly installed on a support frame. A pressure reducing valve is installed on the input pipe. A heating plate is installed inside the flash evaporation chamber, and an array of heating plates is installed inside the flash evaporation chamber. A collection chamber is provided at the bottom of the flash evaporation chamber. The exhaust port is installed above the flash evaporation chamber.

[0011] Preferably, the heating plates are arranged crosswise within the flash chamber.

[0012] The beneficial effects of this utility model are as follows: 1. This invention integrates impregnation, conveying, and flash evaporation functions into a single unit, achieving highly efficient preparation of cyanide-breaking catalysts. The stirring mechanism in the impregnation device ensures uniform distribution of nickel ions on the molecular sieve surface, improving the impregnation effect; the design of the sieving funnel enables preliminary separation of water and molecular sieves, avoiding blockages during material conveying. The conveying device utilizes the rotational thrust of the conveyor blades to smoothly deliver the impregnated molecular sieve into the flash evaporation device, reducing manual intervention and improving automation. The cross-arranged heating plates and pressure-reducing valve design within the flash evaporation device not only improves flash evaporation efficiency but also ensures uniform heating and reduces energy consumption. Furthermore, the collection chamber and one-way valve further optimize the flash evaporation process and enhance safety. Attached Figure Description

[0013] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the overall design of this utility model; Figure 2 This is a schematic diagram of the impregnation device of this utility model; Figure 3 This is a cross-sectional schematic diagram of the present invention; Figure 4 This is a schematic diagram of the interior of the impregnation cylinder of this utility model; Figure 5 This is an enlarged schematic diagram of point A of this utility model.

[0015] In the diagram: 1. Support frame; 2. Impregnation device; 21. Impregnation cylinder; 211. Screening funnel; 22. Feed pipe; 23. Liquid inlet pipe; 24. Liquid outlet pipe; 25. Pump motor; 26. Stirring mechanism; 261. Stirring motor; 262. Drive rod; 263. Stirring rod; 27. Discharge pipe; 3. Conveying device; 31. Conveying pipe; 32. Conveying shaft; 33. Conveying fan blade; 34. Control valve; 4. Flash evaporation device; 41. Input pipe; 42. Flash evaporation chamber; 43. Pressure reducing valve; 44. Heating plate; 45. Collection chamber; 46. Exhaust port. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Therefore, the following detailed description of the embodiments of this utility model is not intended to limit the scope of the claimed utility model, but merely represents some embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0017] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0018] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and "back side," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product is conventionally placed during use. These terms are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this utility model.

[0019] It should also be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0020] This disclosure aims to address the problem that existing high-temperature flash evaporation processes for preparing cyanide-breaking catalysts typically require separate steps—immersion, drying, and high-temperature flash evaporation—in different devices. This decentralized approach presents several problems: firstly, the process is cumbersome, requiring frequent material transfers between multiple devices, increasing operational difficulty and time costs; secondly, the need for multiple independent devices results in a large footprint and low space utilization; furthermore, the high costs of equipment purchase, installation, and maintenance increase production costs. Therefore, this disclosure proposes a reaction apparatus for preparing cyanide-breaking catalysts, integrating impregnation, conveying, and flash evaporation functions into a single unit, achieving efficient preparation of the catalyst. The stirring mechanism in the impregnation device ensures uniform distribution of nickel ions on the molecular sieve surface, improving the impregnation effect; the sieving funnel design enables preliminary separation of water and the molecular sieve, preventing blockages during material conveying. The conveying device utilizes the rotational thrust of the conveyor blades to smoothly deliver the impregnated molecular sieve into the flash evaporation device, reducing manual intervention and improving automation. The cross-arrangement of heating plates and pressure-reducing valves within the flash evaporator not only improves flash evaporation efficiency but also ensures uniform heating and reduces energy consumption. Furthermore, the inclusion of a collection chamber and a one-way valve further optimizes the flash evaporation process and enhances safety.

[0021] like Figures 1 to 5As shown, a reaction apparatus for preparing a cyanide-breaking catalyst includes a support frame 1, an impregnation device 2, a conveying device 3, and a flash evaporation device 4. The impregnation device 2 is installed on the support frame 1 and is used to impregnate and stir a molecular sieve in a solution containing nickel ions, so that the nickel ions are evenly distributed on the surface of the molecular sieve. The conveying device 3 is installed at the bottom of the impregnation device 2 and is used to convey the impregnated molecular sieve to the flash evaporation device 4 for further processing. The flash evaporation device 4 is installed on the support frame 1 and is used to dry the impregnated molecular sieve at high temperature and pressure. By integrating impregnation, conveying, and flash evaporation functions into one unit, the efficient preparation of cyanide-breaking catalysts is achieved. The stirring mechanism 26 in the impregnation unit 2 ensures uniform distribution of nickel ions on the molecular sieve surface, improving the impregnation effect. The design of the sieving funnel 211 achieves preliminary separation of water and molecular sieves, avoiding blockages during material conveying. The conveying unit 3 utilizes the rotational thrust of the conveying fan blades 33 to smoothly deliver the impregnated molecular sieve into the flash evaporation unit 4, reducing manual intervention and improving automation. The cross-arranged heating plates 44 and pressure-reducing valves 43 in the flash evaporation unit 4 not only improve flash evaporation efficiency but also ensure uniform heating and reduce energy consumption. Furthermore, the collection chamber 45 and the one-way valve further optimize the flash evaporation process and improve safety.

[0022] like Figures 1 to 4 As shown, the impregnation device 2 includes an impregnation cylinder 21, a feed pipe 22, a liquid inlet pipe 23, a liquid outlet pipe 24, a pumping motor 25, a stirring mechanism 26, and a discharge pipe 27. The impregnation cylinder 21 is fixedly installed on the support frame 1 and is used to hold the impregnation solution. The feed pipe 22 and the liquid inlet pipe 23 are installed on one side above the impregnation cylinder. The feed pipe 22 is used to transport molecular sieve raw materials, and the liquid inlet pipe 23 is used to transport the solution required for impregnation. The liquid outlet pipe 24 is installed at the bottom of the impregnation cylinder and is used to discharge the impregnated liquid. The pumping motor 25 is installed on the liquid outlet pipe 24 and is used to cooperate with the liquid inlet pipe to extract the solution. The stirring mechanism 26 is installed inside the impregnation cylinder 21 and is used to stir the solution and the molecular sieve. The discharge pipe 27 is installed at the bottom of the impregnation cylinder 21 and is used to transport the impregnated molecular sieve to the flash evaporation device 4. During operation, the operator immerses the molecular sieve in a solution containing nickel ions through the feed pipe 22 and the liquid inlet pipe 23. At the same time, the stirring mechanism 26 is set to stir the solution so that the nickel ions are evenly distributed on the surface of the molecular sieve. After the immersion is completed, the pump motor 25 is turned on to extract the internal solution. After the solution is completely extracted, the control valve 34 at the bottom of the conveying device 3 is opened to transport the molecular sieve to the flash evaporation device 4 for flash evaporation. By organically integrating the various components of the impregnation device 2, efficient impregnation of molecular sieves in solutions containing nickel ions is achieved. The rational layout of the feed pipe 22 and liquid inlet pipe 23 facilitates the addition of molecular sieves and impregnation solution into the impregnation cylinder 21. Simultaneously, the stirring mechanism 26 ensures thorough mixing of the solution and molecular sieve, resulting in a uniform distribution of nickel ions on the molecular sieve surface, thereby improving the impregnation effect. Furthermore, the coordinated design of the liquid outlet pipe 24 and the pumping motor 25 effectively discharges the impregnated liquid, preventing impurities from affecting subsequent processing. The discharge pipe 27 and control valve 34 precisely control the transport of the impregnated molecular sieve, ensuring its smooth entry into the flash evaporation device 4 for further processing. Overall, this design not only improves the convenience and efficiency of the impregnation operation but also enhances the quality of the impregnation stage in the preparation of the cyanide-breaking catalyst through the synergistic effect of the various components, laying the foundation for subsequent flash evaporation and catalyst performance improvement.

[0023] like Figures 1 to 3 As shown, the stirring mechanism 26 includes a stirring motor 261, a drive rod 262, and a stirring rod 263. The stirring motor 261 is installed on the top of the impregnation cylinder 21 and drives the drive rod 262 to rotate. The drive rod 262 is installed at the output end of the stirring motor 261, and the rotation of the drive rod 262 drives the stirring rod 263 to rotate. The stirring rods 263 are arranged in an array on the drive rod 262, and the rotation of the stirring rods 263 stirs the solution. During operation, the stirring motor 261 starts and drives the active rod 262 to rotate. The rotating active rod 262 drives the stirring rod 263 to rotate. The rotating stirring rod 263 makes nickel ions evenly distributed on the surface of the molecular sieve. The efficient stirring of the impregnation solution and molecular sieve is achieved through the synergistic action of the stirring motor 261, the drive rod 262, and the stirring rod 263. The stirring motor 261, mounted on top of the impregnation cylinder 21, provides stable power to rotate the drive rod 262, which in turn drives the stirring rod 263. The array of stirring rods 263 mounted on the drive rod 262 creates an all-around stirring effect within the impregnation cylinder 21, ensuring full contact between the solution and the molecular sieve and resulting in a uniform distribution of nickel ions on the molecular sieve surface. This design not only improves impregnation efficiency but also enhances the uniformity and activity of the catalyst, providing a strong guarantee for the preparation of high-performance cyanide-reducing catalysts. It also simplifies the operation process and improves the automation and reliability of the entire preparation process.

[0024] like Figures 3 to 4As shown, the impregnation cylinder 21 is equipped with a sieving funnel 211 for the initial separation of water and molecular sieve. The sieving funnel 211 effectively separates the impregnated molecular sieve from the solution, preventing the molecular sieve from agglomerating or clogging the conveying pipe 31 due to solution residue during subsequent transport. This design not only improves the smoothness of material transport but also reduces solution waste and lowers the burden of subsequent processing. Furthermore, the sieving funnel 211 makes the entire impregnation process more efficient and controllable, further improving the quality and efficiency of material handling during the preparation of the cyanide-breaking catalyst.

[0025] like Figures 4 to 5 As shown, the conveying device 3 includes a conveying pipe 31, a conveying shaft 32, and conveying blades 33. The conveying pipe 31 is installed at the bottom of the discharge pipe 27 and is used to convey the impregnated molecular sieve. A control valve 34 is installed inside the conveying pipe 31 to control the opening and closing of the discharge pipe 27. The conveying shaft 32 is installed at the bottom of the drive rod 262 and is used to drive the conveying blades 33 to rotate under the rotation of the drive rod 262. The conveying blades 33 are spirally arranged on the conveying shaft 32 and are used to rotate and push the powder sieve into the flash evaporation device 4. During operation, the rotation of the drive rod 262 drives the conveyor shaft 32 to rotate, the rotation of the shaft drives the conveyor blades 33 to rotate, and the rotating conveyor blades 33 carry the impregnated molecular sieve into the flash evaporation device 4. The efficient and continuous conveying of the impregnated molecular sieve is achieved through the coordinated operation of the conveying pipe 31, the conveying shaft 32, and the spiral array of conveying blades 33. The conveying pipe 31 is connected to the discharge pipe 27, ensuring smooth material transfer; the conveying shaft 32 is connected to the drive rod 262, and the rotational power of the drive rod 262 drives the conveying blades 33 to rotate. The spiral array of conveying blades 33 generates thrust during rotation, smoothly pushing the impregnated molecular sieve into the flash evaporation unit 4. This design not only improves the efficiency of material conveying and avoids material accumulation or blockage during the conveying process, but also reduces manual intervention, realizes automated operation, and enhances the continuity and stability of the entire cyanide-breaking catalyst preparation process.

[0026] like Figure 3As shown, the flash evaporation device 4 includes an input pipe 41, a flash evaporation chamber 42, a pressure reducing valve 43, a heating plate 44, a collection chamber 45, and an exhaust port 46. The input pipe 41 is installed on the conveying pipe 31 and is used to cooperate with the conveying device 3 to transport the molecular sieve into the flash evaporation device 4. The other end of the input pipe 41 is equipped with the flash evaporation chamber 42, which is fixedly installed on the support frame 1. A pressure reducing valve is installed on the input pipe 41 to reduce the pressure inside the flash evaporation chamber 42. A heating plate 44 is installed inside the flash evaporation chamber 42 to uniformly heat the molecular sieve. An array of heating plates 44 is installed inside the flash evaporation chamber 42. A collection chamber 45 is provided at the bottom of the flash evaporation chamber 42 to collect the flashed molecular sieve. The exhaust port 46 is installed above the flash evaporation chamber 42 and is used to discharge the water vapor inside the flash evaporation chamber 42. The exhaust port 46 is equipped with a one-way valve. The efficient flash evaporation treatment of impregnated molecular sieves is achieved through a rationally arranged system of components including the input pipe 41, flash chamber 42, pressure reducing valve 43, heating plate 44, collection chamber 45, and exhaust port 46. The input pipe 41, in conjunction with the conveying device 3, ensures the smooth entry of the molecular sieve into the flash chamber 42. The pressure reducing valve effectively lowers the pressure within the flash chamber 42, providing the necessary low-pressure environment for the flash evaporation process, thereby accelerating moisture evaporation and shortening drying time. The array of heating plates 44 within the flash chamber 42 provides uniform heating of the molecular sieve, ensuring the efficiency and uniformity of the flash evaporation process and preventing localized overheating or underheating. The collection chamber 45 is designed for convenient collection of the flash-evaporated molecular sieve for subsequent processing or use. The exhaust port 46 is equipped with a one-way valve to promptly discharge water vapor generated during the flash evaporation process while preventing backflow of outside air, ensuring stable pressure within the flash chamber 42.

[0027] like Figure 3 As shown, the heating plates 44 are arranged crosswise within the flash chamber 42. This crosswise arrangement of the heating plates 44 within the flash chamber 42 has significant advantages. This arrangement allows for uniform heat distribution within the flash chamber 42, ensuring that the molecular sieve is fully and evenly heated at all locations. The crosswise arrangement of the heating plates 44 can form multiple heating zones, avoiding problems such as localized overheating or uneven heating, thereby improving flash evaporation efficiency and quality.

[0028] The overall working process is as follows: the operator immerses the molecular sieve in a solution containing nickel ions through the feed pipe 22 and the liquid inlet pipe 23. At the same time, the stirring mechanism 26 is set to stir the solution so that the nickel ions are evenly distributed on the surface of the molecular sieve. After the immersion is completed, the pump motor 25 is turned on to extract the internal solution. After the solution is completely extracted, the control valve 34 is opened to transport the molecular sieve to the flash evaporation device 4 for flash evaporation in conjunction with the conveying device 3.

[0029] Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A reaction apparatus for preparing a cyanide-breaking catalyst, characterized in that, The device includes a support frame (1), an impregnation device (2), a conveying device (3), and a flash evaporation device (4). The impregnation device (2) is installed on the support frame (1). The impregnation device (2) is used to impregnate and stir the molecular sieve in a solution containing nickel ions so that the nickel ions are evenly distributed on the surface of the molecular sieve. The conveying device (3) is installed at the bottom of the impregnation device (2). The conveying device (3) is used to transport the impregnated molecular sieve to the flash evaporation device (4) for further processing. The flash evaporation device (4) is installed on the support frame (1). The flash evaporation device (4) is used to dry the impregnated molecular sieve at high temperature and pressure.

2. The apparatus for preparing a cyanide-breaking catalyst according to claim 1, characterized in that: The impregnation device (2) includes an impregnation cylinder (21), a feed pipe (22), a liquid inlet pipe (23), a liquid outlet pipe (24), a water pump motor (25), a stirring mechanism (26), and a discharge pipe (27). The impregnation cylinder (21) is fixedly installed on the support frame (1). The feed pipe (22) and the liquid inlet pipe (23) are installed on one side above the impregnation cylinder. The liquid outlet pipe (24) is installed at the bottom of the impregnation cylinder. The water pump motor (25) is installed on the liquid outlet pipe (24). The stirring mechanism (26) is installed inside the impregnation cylinder (21). The discharge pipe (27) is installed at the bottom of the impregnation cylinder (21).

3. The apparatus for preparing a cyanide-breaking catalyst according to claim 2, characterized in that: The stirring mechanism (26) includes a stirring motor (261), a drive rod (262) and a stirring rod (263). The stirring motor (261) is installed on the top of the impregnation cylinder (21). The drive rod (262) is installed at the output end of the stirring motor (261). The stirring rod (263) is arranged in an array on the drive rod (262).

4. The apparatus for preparing a cyanide-breaking catalyst according to claim 3, characterized in that: The impregnation cylinder (21) is equipped with a sieving funnel (211) for the initial separation of water and molecular sieve.

5. The apparatus for preparing a cyanide-breaking catalyst according to claim 4, characterized in that: The conveying device (3) includes a conveying pipe (31), a control valve (34), a conveying shaft (32), and conveying blades (33). The conveying pipe (31) is installed at the bottom of the discharge pipe (27), and the control valve (34) is installed at the bottom of the conveying pipe (31). The conveying shaft (32) is installed at the bottom of the drive rod (262), and the conveying blades (33) are spirally arrayed on the conveying shaft (32).

6. The apparatus for preparing a cyanide-breaking catalyst according to claim 5, characterized in that: The flash evaporation device (4) includes an input pipe (41), a flash evaporation chamber (42), a pressure reducing valve (43), a heating plate (44), a collection chamber (45), and an exhaust port (46). The input pipe (41) is installed on the delivery pipe (31), and the other end of the input pipe (41) is equipped with a flash evaporation chamber (42). The flash evaporation chamber (42) is fixedly installed on the support frame (1). A pressure reducing valve is installed on the input pipe (41). A heating plate (44) is installed inside the flash evaporation chamber (42), and an array of heating plates (44) is installed inside the flash evaporation chamber (42). A collection chamber (45) is provided at the bottom of the flash evaporation chamber (42). The exhaust port (46) is installed above the flash evaporation chamber (42).

7. The apparatus for preparing a cyanide-breaking catalyst according to claim 6, characterized in that: The heating plates (44) are arranged crosswise inside the flash chamber (42).

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