Crystallization kettle for precious metal waste liquid treatment

By setting a detachable crystal panel and a blow drying mechanism in the crystal kettle, the problem that crystals in traditional crystal kettles are easily adhered to the inner wall of the kettle body is solved, and efficient recycling and simplified removal of precious metal crystals is achieved, reducing maintenance costs.

CN223047273UActive Publication Date: 2025-07-01SHENZHEN JINZHENGLONG TECH CO LTD
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Patent Information

Application Number
CN202421706261.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-17
Publication Date
2025-07-01
Estimated Expiration
2034-07-17

AI Technical Summary

Technical Problem

When traditional crystal kettles treat precious metal waste liquid, the precipitated crystals are prone to adhere to the inner wall of the kettle body, resulting in difficulty in taking out, affecting cooling efficiency and increasing maintenance costs.

Method used

A crystal kettle for the treatment of precious metal waste liquid is designed, including a crystal kettle body, a detachable and connected crystal panel, a cooling kettle body, a cover plate and a blow drying mechanism. By setting a detachable crystal panel and a blow drying mechanism in the crystal kettle body, the crystal precipitation on the crystal plate and a blow drying mechanism are promoted to reduce the adhesion of the kettle body.

Benefits of technology

It improves the recycling efficiency of precious metal crystals, simplifies the crystal extraction process, and reduces maintenance costs and time consumption.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a crystallization kettle for precious metal waste liquid treatment, which comprises a crystallization kettle body, a cooling kettle body, a cover plate and an air blowing mechanism, precious metal waste liquid is crystallized in the crystallization kettle body, and a crystallization plate is detachably connected in the crystallization kettle body. The crystallization kettle body is arranged in the cooling kettle body, and cooling liquid is arranged between the cooling kettle body and the crystallization kettle body. A ventilation opening is formed in the cover plate and is communicated with the inside of the crystallization kettle body and the outside. And the air blowing mechanism is arranged on the ventilation opening and blows air in the crystallization kettle body to flow. According to the crystallization kettle for precious metal waste liquid treatment, the detachably connected crystallization plates are arranged in the crystallization kettle body. By means of the design, precious metal crystals are attached to the crystallization plate in the precipitation process. Precious metal attached to the kettle body is reduced, so that the combination problem between crystals and the surface of the kettle body is optimized, the crystallization plate is more easily taken out of the crystallization kettle body, and the recovery efficiency is improved.
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Description

Technical Field

[0001] The present application relates to the field of precious metal recovery, and particularly to a crystallization kettle for treating precious metal waste liquid. Background Art

[0002] Precious metal waste liquid refers to wastewater or waste liquid containing precious metals (such as gold, silver, platinum, palladium, etc.). These precious metals come from various industrial processes, such as metal processing, electronic device manufacturing, chemical production, precious metal extraction and recovery, etc. A crystallization kettle is a common device used for crystallizing liquid substances in the chemical, metallurgical and other industrial fields. It usually consists of a container or kettle body, with the liquid substance to be treated, such as a solution or waste liquid, contained inside. During the crystallization process, by controlling the temperature and other process parameters, the solute in the solution gradually precipitates from the solution and forms crystals inside the kettle body. These crystals can be the desired products, or waste or by-products, depending on the specific process purpose.

[0003] There are some technical problems when traditional crystallization kettles are used to treat precious metal waste liquid. These traditional crystallization kettles usually achieve cooling by stirring the precious metal waste liquid, making the precious metal waste liquid flow inside the crystallization kettle and come into full contact with the cooling structure therein, so that the precious metals in the waste liquid crystallize and precipitate. However, this method has an obvious defect: the precipitated crystals often adhere to the inner wall of the kettle body, resulting in a combination between the crystals and the surface of the kettle body, making it difficult to conveniently remove the crystals. This adhesion problem will lead to various inconveniences and inefficiencies. First, the adhered crystals may form a blocky structure on the inner wall of the kettle body, resulting in a decrease in the cooling efficiency during the waste liquid treatment process, and further affecting the precipitation rate of precious metals in the waste liquid. Second, due to the combination between the crystals and the kettle body, it becomes very difficult to remove the crystals, requiring a large amount of time and labor costs. In addition, the internal structure of the kettle body may be damaged during the removal process, thus increasing the costs of maintenance and replacement of the kettle body.

[0004] Therefore, it is necessary to design a crystallization kettle for treating precious metal waste liquid that can conveniently remove the precipitated precious metal crystals in the crystallization kettle to solve the problem that the crystals precipitated in the traditional crystallization kettle are not easy to remove. Utility Model Content

[0005] In view of this, it is necessary to provide a crystallization kettle for treating precious metal waste liquid to solve the above problems.

[0006] An embodiment of the present application provides a crystallization kettle for treating precious metal waste liquid, including:

[0007] A crystallization kettle body, where the precious metal waste liquid crystallizes inside the crystallization kettle body, and a crystallization plate is detachably connected inside the crystallization kettle body;

[0008] A cooling kettle body, with the crystallization kettle body disposed within the cooling kettle body, and there is a coolant between the cooling kettle body and the crystallization kettle body;

[0009] A cover plate, covering the crystallization kettle body, and there is a ventilation opening on the cover plate, and the ventilation opening communicates the interior of the crystallization kettle body with the outside;

[0010] A blowing mechanism, disposed on the ventilation opening, and the blowing mechanism blows the gas flow within the crystallization kettle body.

[0011] In at least one embodiment of the present application, the crystallization kettle body includes a heat-conducting structure in contact with the coolant within the cooling kettle body and a heat-insulating layer disposed on the side of the heat-conducting structure away from the cooling kettle body, and the crystallization plate penetrates through the heat-insulating layer and contacts the heat-conducting structure.

[0012] In at least one embodiment of the present application, crystallization grooves are provided on the crystallization plate, the length direction of the crystallization grooves is denoted as the first direction, and both ends of the crystallization grooves in the first direction penetrate through the crystallization plate.

[0013] In at least one embodiment of the present application, an assembly groove is provided within the crystallization kettle body, and the crystallization plate is slidably connected to the assembly groove, and the crystallization plate enters or exits the crystallization kettle body along the assembly groove.

[0014] In at least one embodiment of the present application, a water inlet and a water outlet are provided on the cooling kettle body, and the water inlet and the water outlet are disposed opposite to each other.

[0015] In at least one embodiment of the present application, a drain pipe is provided on the cooling kettle body, one end of the drain pipe communicates with the crystallization kettle body, and the other end communicates with the outside.

[0016] In at least one embodiment of the present application, support feet are provided on the side of the cooling kettle body away from the crystallization kettle body.

[0017] In at least one embodiment of the present application, the cooling kettle body has a housing structure and a liquid storage structure disposed on the housing structure, the coolant is located within the liquid storage structure, and a heat-insulating area is formed between the liquid storage structure and the housing structure.

[0018] In at least one embodiment of the present application, a temperature measuring instrument is provided on the cooling kettle body, and the temperature measuring instrument is in contact with the coolant within the cooling kettle body.

[0019] In at least one embodiment of the present application, a handle is provided on the crystallization kettle body.

[0020] The crystallization kettle for treating precious metal waste liquid provided above is provided with a detachably connected crystallization plate inside the crystallization kettle body. This design enables precious metal crystals to adhere to the crystallization plate during the precipitation process, reducing the precious metals adhering to the kettle body, thereby optimizing the bonding problem between the crystals and the surface of the kettle body. Moreover, the crystallization plate can be more easily removed from the crystallization kettle body, improving the recovery efficiency. Brief Description of the Drawings

[0021] Figure 1 It is a three-dimensional structure diagram of the crystallization kettle for treating precious metal waste liquid;

[0022] Figure 2 It is a three-dimensional structure diagram of the crystallization kettle for treating precious metal waste liquid;

[0023] Figure 3 It is a top view of the crystallization kettle for treating precious metal waste liquid;

[0024] Figure 4 It is Figure 3 sectional view A-A of

[0025] Figure 5 It is Figure 3 sectional view B-B of

[0026] Figure 6 It is a three-dimensional structure diagram of the crystallization plate.

[0027] Description of the Main Component Symbols

[0028] 100. Crystallization kettle for treating precious metal waste liquid; 1. Crystallization kettle body; 11. Crystallization plate; 111. Crystallization tank; 12. Thermal insulation layer; 13. Assembly groove; 14. Heat conduction structure; 2. Cooling kettle body; 21. Water inlet; 22. Water outlet; 23. Drain pipe; 24. Support feet; 25. Shell structure; 26. Liquid storage structure; 27. Temperature measuring instrument; 28. Handle; 3. Cover plate; 31. Ventilation opening; 4. Blowing mechanism; a. Heat insulation area. Detailed Embodiments

[0029] Next, the embodiments of the present application will be described in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments.

[0030] It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intermediate component at the same time. When a component is considered to be "provided on" another component, it can be directly provided on the other component or there may be an intermediate component at the same time. The terms "top", "bottom", "upper", "lower", "left", "right", "front", "rear", and similar expressions used herein are only for the purpose of illustration.

[0031] An embodiment of the present application provides a crystallization kettle for treating precious metal waste liquid, including:

[0032] A crystallization kettle body, in which the precious metal waste liquid crystallizes, and a crystallization plate is detachably connected inside the crystallization kettle body;

[0033] A cooling kettle body, the crystallization kettle body is arranged inside the cooling kettle body, and there is a coolant between the cooling kettle body and the crystallization kettle body;

[0034] A cover plate, which is covered on the crystallization kettle body, and a ventilation opening is arranged on the cover plate, and the ventilation opening communicates the inside of the crystallization kettle body with the outside;

[0035] A blowing mechanism is arranged on the ventilation opening, and the blowing mechanism blows the gas inside the crystallization kettle body to flow. The crystallization kettle for treating precious metal waste liquid provided above is provided with a detachably connected crystallization plate inside the crystallization kettle body. This design enables precious metal crystals to adhere to the crystallization plate during the precipitation process. The precious metal adhering to the inside of the kettle is reduced, thereby optimizing the bonding problem between the crystals and the surface of the kettle body, and the crystallization plate is easier to take out from the crystallization kettle body, improving the recovery efficiency.

[0036] The following will describe in detail some embodiments of the present application with reference to the drawings. Without conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0037] Please refer to Figures 1 - 6 , an embodiment of the present application provides a crystallization kettle 100 for treating precious metal waste liquid, including a crystallization kettle body 1, a cooling kettle body 2, a cover plate 3 and a blowing mechanism 4. The precious metal waste liquid crystallizes inside the crystallization kettle body 1, and a crystallization plate 11 is detachably connected inside the crystallization kettle body 1. The crystallization kettle body 1 is arranged inside the cooling kettle body 2, and there is a coolant between the cooling kettle body 2 and the crystallization kettle body 1. The cover plate 3 is covered on the crystallization kettle body 1, and a ventilation opening 31 is arranged on the cover plate 3, and the ventilation opening 31 communicates the inside of the crystallization kettle body 1 with the outside. The blowing mechanism 4 is arranged on the ventilation opening 31, and the blowing mechanism 4 blows the gas inside the crystallization kettle body 1 to flow.

[0038] Specifically, the crystallization kettle body 1 is the main container for the crystallization of precious metal waste liquid, while the crystallization plate 11 helps to form uniform crystallization within the crystallization kettle body 1. The precious metal waste liquid in the crystallization kettle body 1 crystallizes on the crystallization plate 11, and the crystallization plate 11 plays a crucial role during the crystallization process. It provides a fixed surface that is conducive to the formation and growth of crystal nuclei. The surface characteristics of the crystallization plate 11 also have an important influence on the crystal morphology and crystal purity. Conditions during the crystallization process, such as temperature, solute concentration in the solution, and surface characteristics of the crystallization plate 11, etc., will all affect the formation and growth of crystals. By adjusting these conditions, the size, shape, and purity of the crystals can be controlled. The crystallization plate 11 is detachably connected, facilitating the cleaning and maintenance of the crystallization kettle. The cooling kettle body 2 provides a cooling environment for the crystallization kettle body 1 to control the crystallization speed and temperature. The cooling liquid cools the crystallization kettle body 1 to prevent overheating or overcooling. The cooling liquid circulates within the cooling kettle body 2 and absorbs the heat released by the crystallization kettle body 1 through contact with it. The ventilation openings 31 on the cover plate 3 allow the gas inside the crystallization kettle body 1 to exchange with the outside world to maintain a suitable gas environment. The ventilation openings 31 communicate the gas inside and outside the crystallization kettle body 1 through the cover plate 3 to keep the ventilation inside the crystallization kettle body 1 good. The blowing mechanism 4 promotes gas flow by blowing the gas inside the crystallization kettle body 1, which helps to accelerate the crystallization process. By blowing the gas, the blowing mechanism 4 can promote the mixing and dispersion between the solute and the solvent inside the crystallization kettle body 1, thereby accelerating the crystallization process. This helps the solute to reach the saturation state as soon as possible and form crystal nuclei. By blowing the gas, the contact area of the gas-liquid interface can be increased, thereby enhancing the mass transfer rate between solute molecules and solvent molecules. This helps to accelerate the process of transferring the solute from the solution to the solid crystal. Some gases may be generated during the crystallization process, such as volatile substances or reaction products. The blowing mechanism 4 can help to discharge these waste gases and keep the crystallization environment clean and stable.

[0039] In a specific example, the crystallization kettle body 1 includes a heat-conducting structure 14 that contacts the cooling liquid in the cooling kettle body 2 and a heat-insulating layer 12 provided on the side of the heat-conducting structure 14 away from the cooling kettle body 2, and the crystallization plate 11 penetrates through the heat-insulating layer 12 and contacts the heat-conducting structure 14.

[0040] Specifically, the heat-conducting structure 14 is the part responsible for contacting the coolant in the cooling kettle body 2. Its main function is to conduct the temperature of the coolant into the crystallization kettle body 1 to control the temperature during the crystallization process. Through the heat-conducting structure 14, the low temperature in the coolant can be quickly transferred into the crystallization kettle body 1, enabling the crystallization process to proceed within an appropriate temperature range. The heat-insulating layer 12 is located on the side of the heat-conducting structure 14 away from the cooling kettle body 2, and its main function is to reduce the heat loss of the crystallization kettle body 1 and maintain the stability of the internal temperature of the crystallization kettle body 1. The heat-insulating layer 12 can prevent the heat inside the crystallization kettle body 1 from being transferred outward, reducing the dissipation of thermal energy, thereby improving the energy utilization efficiency and ensuring the temperature stability during the crystallization process. The crystallization plate 11 penetrates through the heat-insulating layer 12 and contacts the heat-conducting structure 14. Its main function is to provide a fixed platform to support the crystals formed during the crystallization process and provide suitable conditions for the growth of the crystals. The crystallization plate 11 serves as the base for crystal growth, helping to form regular crystals and providing a stable surface that is conducive to the uniformity and purity of crystal growth.

[0041] In a specific example, a crystallization groove 111 is formed on the crystallization plate 11. The length direction of the crystallization groove 111 is denoted as the first direction, and both ends of the crystallization groove 111 in the first direction penetrate through the crystallization plate 11.

[0042] Specifically, the crystallization plate 11 is a platform responsible for supporting and accommodating the crystals formed during the crystallization process. Generally, the crystallization plate 11 is a flat surface for crystal growth and positioning. In this description, the crystallization plate 11 is required to have a crystallization groove 111. The crystallization groove 111 is a groove or channel on the crystallization plate 11, used to control the formation and growth direction of the crystals, or to guide the flow of solutes in the solution. The crystallization groove 111 is along the length direction of the crystallization plate 11, that is, the so-called first direction. This means that the direction of the crystallization groove 111 is parallel to the long side of the crystallization plate 11. Both ends of the crystallization groove 111 pass through the entire crystallization plate 11, which means that the crystallization groove 111 not only has a groove on the surface of the crystallization plate 11, but also extends in the thickness direction of the crystallization plate 11, leading directly to both sides of the crystallization plate 11. The specific function of the crystallization groove 111 may depend on the specific application scenario and the requirements of the crystallization process. Generally speaking, the crystallization groove 111 can be used to control the growth direction of the crystals, promote the uniform growth of the crystals, and help control the size and morphology of the crystals. In addition, the crystallization groove 111 can also be used to guide the flow of solutes in the solution to optimize the solute transport and crystallization efficiency during the crystallization process.

[0043] In a specific example, an assembly groove 13 is formed in the crystallization kettle body 1. The crystallization plate 11 is slidably connected to the assembly groove 13, and the crystallization plate 11 enters or exits the crystallization kettle body 1 along the assembly groove 13.

[0044] Specifically, the crystallization kettle body 1 is the main container for the crystallization process, where the precious metal waste liquid undergoes crystallization. An assembly groove 13 is opened inside the crystallization kettle body 1 for installing and fixing the crystallization plate 11. The assembly groove 13 is a groove or channel inside the crystallization kettle body 1 for fixing the crystallization plate 11 and ensuring its stable sliding.

[0045] Sliding connection: A sliding connection is adopted between the crystallization plate 11 and the assembly groove 13, which means that the crystallization plate 11 can slide easily and smoothly within the assembly groove 13 to enter or leave the crystallization kettle body 1. The crystallization plate 11 is a platform responsible for supporting and accommodating the crystals formed during the crystallization process. It is designed to match the assembly groove 13 so that it can slide along the assembly groove 13. When the crystallization plate 11 needs to be placed into the crystallization kettle body 1, the crystallization plate 11 can be slid along the assembly groove 13 until it completely enters the crystallization kettle body 1 and is located at the desired position. When the crystallization plate 11 needs to be taken out, the crystallization plate 11 can be slid along the assembly groove 13 to gradually disengage it from the crystallization kettle body 1 until it completely leaves the crystallization kettle body 1. This design of the assembly groove 13 makes the installation and removal of the crystallization plate 11 very convenient and fast. At the same time, through the sliding connection, the crystallization plate 11 can enter and leave the crystallization kettle body 1 smoothly, avoiding the situation of possibly damaging the crystallization plate 11 or the kettle body.

[0046] In a specific example, a water inlet 21 and a water outlet 22 are provided on the cooling kettle body 2, and the water inlet 21 and the water outlet 22 are arranged opposite to each other.

[0047] Specifically, the water inlet 21 is an opening on the cooling kettle body 2 for injecting coolant (usually water or other cooling media) into the interior. The coolant enters the interior of the cooling kettle body 2 through the water inlet 21 to reduce the temperature inside the crystallization kettle body 1. The water outlet 22 is an opening on the cooling kettle body 2 for discharging the coolant that has circulated inside the crystallization kettle body 1. After circulating, the coolant will carry away the heat inside the crystallization kettle body 1 and then be discharged from the water outlet 22 to maintain the temperature stability inside the cooling kettle body 2. This means that the water inlet 21 and the water outlet 22 are located at opposite positions on the cooling kettle body 2, so that their positions on the kettle body are symmetrical to each other. The oppositely arranged water inlet 21 and water outlet 22 contribute to the uniform flow and circulation of the coolant. When the water inlet 21 and the water outlet 22 are symmetrically positioned, the coolant can flow more evenly through the interior of the crystallization kettle body 1, improving the cooling efficiency. The settings of the water inlet 21 and the water outlet 22 enable the cooling kettle body 2 to effectively control the temperature inside the crystallization kettle body 1. Through the circulation of the coolant, the temperature inside the crystallization kettle body 1 can be quickly reduced to ensure that the crystallization process proceeds within an appropriate temperature range. The oppositely arranged water inlet 21 and water outlet 22 contribute to the uniform flow of the coolant inside the cooling kettle body 2, improving the cooling efficiency and ensuring the stability and controllability of the crystallization process.

[0048] In a specific example, a drain pipe 23 is provided on the cooling kettle body 2, one end of the drain pipe 23 is communicated with the crystallization kettle body 1, and the other end is communicated with the outside.

[0049] Specifically, the drain pipe 23 is a kind of pipe or channel for discharging the liquid (which may be coolant or other waste liquid) generated inside the cooling kettle body 2 to the external environment. The drain pipe 23 is usually made of corrosion-resistant materials to facilitate the treatment of various chemical waste liquids. One end of the drain pipe 23 is communicated with the crystallization kettle body 1, which means that one end of the drain pipe 23 is directly connected to the inside of the crystallization kettle body 1. This connection enables the liquid generated inside the crystallization kettle body 1 to flow out through the drain pipe 23, realizing the discharge and treatment of the liquid inside the crystallization kettle body 1. The other end of the drain pipe 23 is communicated with the outside, which means that the other end of the drain pipe 23 opens towards the external environment, enabling the liquid in the drain pipe 23 to be smoothly discharged to the external environment. The outside may be a sewage treatment system, a chemical waste liquid treatment facility or other liquid treatment equipment for receiving and treating the discharged waste liquid. The setting of the drain pipe 23 enables the waste liquid generated during the crystallization process to be discharged in time, keeping the inside of the crystallization kettle body 1 clean and stable. Through the drain pipe 23, the liquid waste generated inside the crystallization kettle body 1 can be effectively treated, preventing the accumulation and pollution of the waste.

[0050] In a specific example, support feet 24 are provided on the side of the cooling kettle body 2 away from the crystallization kettle body 1.

[0051] Specifically, the support feet 24 are support structures fixed to the bottom or side of the cooling kettle body 2, usually made of strong materials such as metal or steel. The main function of the support feet 24 is to provide stable support and supporting force to support the weight and load of the cooling kettle body 2, ensuring that it is firmly placed on the ground or other supporting surfaces. The side of the cooling kettle body 2 away from the crystallization kettle body 1 means that the support feet 24 are located on one side of the cooling kettle body 2, far from the crystallization kettle body 1. The position design of the support feet 24 enables the cooling kettle body 2 to maintain balance and stability, and it will not lose balance even when installed or used on one side of the crystallization kettle body 1. The setting of the support feet 24 ensures the stability and safety of the cooling kettle body 2, preventing it from tilting or shaking due to the movement or vibration of the crystallization kettle body 1. Through the support feet 24, the cooling kettle body 2 can maintain a stable posture during the crystallization process and will not be affected by changes in the external environment or other factors.

[0052] In a specific example, the cooling kettle body 2 has a shell structure 25 and a liquid storage structure 26 provided on the shell structure 25. The coolant is located in the liquid storage structure 26, and a heat insulation area a is formed between the liquid storage structure 26 and the shell structure 25.

[0053] Specifically, the housing structure 25 is the external structure of the cooling kettle body 2 and is usually made of corrosion-resistant and high-temperature-resistant materials such as stainless steel or other alloy materials. Its main function is to provide external protection and support for the cooling kettle body 2. The liquid storage structure 26 is a container or storage device provided on the housing structure 25 for containing the coolant. The coolant can be water or other liquid media used for cooling. The liquid storage structure 26 is usually sealed to prevent the coolant from leaking or being contaminated by the external environment. The coolant is a medium used to reduce the temperature of the crystallization kettle body 1. It circulates inside the cooling kettle body 2 to absorb and carry away the heat released during the crystallization process. The coolant is usually water or other suitable liquid media, and its selection depends on the specific crystallization process and application requirements. The heat insulation area a refers to the area formed between the liquid storage structure 26 and the housing structure 25, and its function is to reduce the heat transfer between the coolant and the external environment, thereby improving the cooling efficiency. The heat insulation area a is usually composed of insulating materials or heat insulation materials such as high-density polyethylene (HDPE), rock wool, etc., which can effectively prevent the conduction and dissipation of heat.

[0054] In a specific example, a temperature measuring instrument 27 is provided on the cooling kettle body 2, and the temperature measuring instrument 27 is in contact with the coolant inside the cooling kettle body 2.

[0055] Specifically, the temperature measuring instrument 27 is a device or sensor used to measure the internal temperature of the cooling kettle body 2. Usually, the temperature measuring instrument 27 can be a thermometer, a thermistor, a thermocouple, an infrared thermometer, etc. The temperature measuring instrument 27 can monitor the internal temperature change of the cooling kettle body 2 in real time and transmit the data to the control system or the operator to adjust and control the temperature during the crystallization process in a timely manner. The temperature measuring instrument 27 being in direct contact with the coolant means that it is located in the coolant or in direct contact with the coolant to obtain an accurate temperature measurement value. This design can more precisely monitor the temperature of the coolant, thereby realizing the precise control and adjustment of the temperature during the crystallization process. The function of the temperature measuring instrument 27 is to monitor the temperature of the coolant in real time to ensure that the temperature during the crystallization process is controlled within an appropriate range. By accurately measuring the temperature of the coolant, the flow rate or temperature of the coolant can be adjusted to meet the temperature requirements in different stages of the crystallization process. The temperature measuring instrument 27 can also help identify and solve possible temperature abnormalities or fluctuations, ensuring the stability and reliability of the crystallization process.

[0056] In a specific example, a handle 28 is provided on the crystallization kettle body 1.

[0057] Specifically, the handle 28 is a handle or grip mounted on the crystallization kettle body 1, which is usually made of corrosion-resistant and strong materials, such as stainless steel or plastic. The main function of the handle 28 is to facilitate the operator to carry, move or manipulate the crystallization kettle body 1, and to provide good grip and support. The crystallization kettle body 1 is usually a relatively bulky device, and the handle 28 can make it easier for the operator to carry and move the crystallization kettle body 1, thereby facilitating the installation, adjustment and maintenance of the equipment. The setting of the handle 28 can provide additional support and stability, so that the operator can more safely manipulate and operate the crystallization kettle body 1 to avoid accidental falls or slips. The operator can easily move the crystallization kettle body 1 to the desired position by grasping the handle 28 for processing or cleaning, and it also helps to adjust and position the crystallization kettle body 1. The handle 28 can reduce the inconvenience and risk of the operator carrying the crystallization kettle body 1, and improve the safety and stability of the operation. The setting of the handle 28 can also reduce the possibility of injury to the operator during the handling or operation process, and provide safer conditions for the working environment.

[0058] The above is only an implementation method of the present application. It should be pointed out that a person skilled in the art can make improvements without departing from the inventive concept of the present application, but these improvements are within the scope of protection of the present application.

Claims

1. A crystallization kettle for precious metal waste liquid treatment, characterized in that: include: A crystallization kettle body, in which the precious metal waste liquid is crystallized, and a crystallization plate is detachably connected to the crystallization kettle body; A cooling kettle body, wherein the crystallization kettle body is arranged inside the cooling kettle body, and a cooling liquid is provided between the cooling kettle body and the crystallization kettle body; A cover plate is arranged on the crystallization kettle body, and a vent is arranged on the cover plate, and the vent connects the crystallization kettle body with the outside; The blowing mechanism is arranged on the vent, and the blowing mechanism blows the gas flow in the crystallization kettle.

2. The crystallization kettle for precious metal waste liquid treatment according to claim 1, characterized in that: The crystallization kettle body comprises a heat-conducting structure in contact with the cooling liquid in the cooling kettle body and a heat-insulating layer arranged on a side of the heat-conducting structure away from the cooling kettle body, and the crystallization plate penetrates the heat-insulating layer and contacts the heat-conducting structure.

3. The crystallization kettle for precious metal waste liquid treatment according to claim 2, characterized in that: A crystallization groove is provided on the crystallization plate, and the length direction of the crystallization groove is recorded as a first direction. Both ends of the crystallization groove in the first direction penetrate the crystallization plate.

4. The crystallization kettle for precious metal waste liquid treatment according to claim 2, characterized in that: An assembly groove is provided in the crystallization kettle body, the crystallization plate is slidably connected to the assembly groove, and the crystallization plate enters or leaves the crystallization kettle body along the assembly groove.

5. The crystallization kettle for precious metal waste liquid treatment according to claim 1, characterized in that: The cooling kettle body is provided with a water inlet and a water outlet, and the water inlet and the water outlet are arranged opposite to each other.

6. The crystallization kettle for precious metal waste liquid treatment according to claim 1, characterized in that: The cooling kettle body is provided with a drain pipe, one end of which is connected to the crystallization kettle body, and the other end of which is connected to the outside.

7. The crystallization kettle for precious metal waste liquid treatment according to claim 1, characterized in that: A supporting foot is provided on a side of the cooling kettle body away from the crystallization kettle body.

8. The crystallization kettle for precious metal waste liquid treatment according to claim 1, characterized in that: The cooling kettle body comprises a shell structure and a liquid storage structure arranged on the shell structure. The cooling liquid is located in the liquid storage structure. A heat insulation area is formed between the liquid storage structure and the shell structure.

9. The crystallization kettle for precious metal waste liquid treatment according to claim 1, characterized in that: The cooling kettle body is provided with a temperature measuring instrument, and the temperature measuring instrument is in contact with the cooling liquid in the cooling kettle body.

10. The crystallization kettle for treating precious metal waste liquid according to claim 1, characterized in that: The crystallization kettle body is provided with a handle.