Reaction kettle for chemical plating
By designing a reaction vessel for chemical plating, and utilizing stirring blades, ultrasound, and hot oil circulation, the problem of low plating efficiency in the chemical nickel plating process of diamond micropowder was solved, achieving high-efficiency plating effect and stable reaction control.
Patent Information
- Application Number
- CN202423250405.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-27
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2034-12-27
AI Technical Summary
In the existing process of electroless nickel plating with diamond micron powder, the plating efficiency is low, the amount of plating per batch is small, the plating effect is poor, and the need for manual stirring leads to high labor intensity.
A chemical plating reactor is used, in which a stirring blade is driven by a first motor, the temperature is controlled by ultrasonic waves and hot oil circulation, and chemicals are continuously added by a delivery pump to achieve a uniform reaction inside the reactor.
It improves coating efficiency, reduces adhesion between diamond micropowder particles, increases single-pass throughput, reduces labor intensity, and ensures reaction stability and quality.
Smart Images
Figure CN223620477U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of diamond micronized powder processing technology, specifically relating to a reaction vessel for chemical plating. Background Technology
[0002] In the preparation process of diamond micro powder for diamond wire abrasive, the chemical plating process involves plating a layer of nickel onto the surface of the diamond micro powder, which can give the diamond micro powder better performance and application characteristics. Currently, the diamond micro powder is often mixed with the required chemical solution in a tank, and the staff needs to stir it at all times to ensure the plating effect of chemical nickel plating. However, this process has problems such as low plating efficiency, small single plating amount, and poor plating effect. Summary of the Invention
[0003] This invention addresses the problems of low plating efficiency, small single-platen plating volume, and poor plating effect associated with existing methods of electroless nickel plating using diamond micropowder, which involve mixing and stirring the diamond micropowder with the required chemical solution in a small container. The invention provides a chemical plating reactor that uses a first motor to drive stirring blades to agitate the liquid and diamond micropowder within the reactor. Hot oil is circulated between the inner and outer layers of the reactor to maintain the plating temperature. Ultrasonic waves and stirring are used to control the adhesion between the diamond micropowder particles. A delivery pump continuously supplies sodium hypophosphite into the reactor, ensuring a stable and controllable reaction.
[0004] To achieve the above objectives, the technical solution of this utility model is as follows:
[0005] A chemical plating reactor includes a mounting frame on which a reactor body and a cover are mounted. The reactor body comprises an inner layer and an outer layer with a gap between them. A circulation inlet is located at the lower end of the reactor body, and a circulation outlet is located at the upper end. Both the circulation inlet and the circulation outlet are connected to the gap between the inner and outer layers. Both the circulation inlet and the circulation outlet are connected by pipes to a feed tank. Preferably, the feed tank contains hot oil. The hot oil circulates in the gap between the inner and outer layers of the reactor body through the circulation inlet and the circulation outlet, effectively controlling the temperature inside the reactor body to be between 85°C and 95°C, ensuring the smooth progress of the reaction.
[0006] The cover is slidably connected to the mounting bracket. The cover is equipped with a stirring assembly, an ultrasonic assembly, and a dosing assembly. The stirring assembly is used to stir the liquid in the vessel. The ultrasonic assembly is used to emit ultrasonic waves into the vessel. The dosing assembly is used to deliver the medicine into the vessel. By sliding the cover up and down, the stirring assembly, ultrasonic assembly, and dosing assembly are moved synchronously from the vessel, thereby opening the cover to stop working or closing the cover to start working.
[0007] Preferably, the stirring assembly includes a first motor, a stirring shaft, and stirring blades. The first motor is fixedly mounted on the top of the cover, and the output end of the first motor is fixedly connected to the stirring shaft. The lower end of the stirring shaft extends into the lower part of the vessel body, and stirring blades are mounted on the stirring shaft. The first motor drives the stirring shaft to rotate, which in turn drives the stirring blades to rotate, thereby stirring the diamond powder and liquid inside the vessel body.
[0008] Preferably, the stirring shaft is fixedly fitted with multiple connecting seats spaced apart vertically, and each connecting seat is circumferentially fixed with multiple stirring blades. The synchronous rotation of the spiral blades on the multiple connecting seats ensures the stirring effect inside the vessel.
[0009] Preferably, the ultrasonic component includes at least one ultrasonic generator, the lower end of which extends through the cover into the vessel body to emit ultrasonic waves into the liquid inside the vessel body. The ultrasonic generator further enhances the dispersion of diamond powder in the liquid inside the vessel body and controls the adhesion between diamond powder particles.
[0010] Preferably, the dosing assembly includes a dosing pipe that extends through the cover into the reactor body. The dosing pipe is connected to a delivery pump, which is connected to a storage tank containing chemicals. The delivery pump continuously delivers chemicals into the reactor body, controlling the reaction rate within the reactor body to ensure a uniform electroless plating effect.
[0011] Preferably, multiple drug inlet pipes are provided, which are arranged circumferentially on the cover. The multiple drug inlet pipes are connected to the delivery pump, and the multiple drug inlet pipes simultaneously deliver the drug into the vessel, ensuring the rapid diffusion of the drug into the vessel.
[0012] Preferably, the mounting frame includes a support plate and a vertical pole. The vertical pole is fixedly mounted on the top of the support plate, and a second motor is fixedly mounted on the upper side of the vertical pole. The vessel body is fixedly connected to one side of the vertical pole. The support plate corresponds vertically to the vessel body. A downward sliding groove is formed at the upper end of the vertical pole. A screw is fixedly connected to the output end of the second motor. The screw extends into the sliding groove, and a mounting seat is slidably mounted in the sliding groove. The screw is threadedly connected to the mounting seat. The mounting seat extends out of the vertical pole and is fixedly connected to the cover. The second motor drives the screw to rotate, causing the mounting seat and the cover to rise and fall.
[0013] Preferably, a discharge pipe is fixedly provided at the lower end of the vessel body. The discharge pipe extends into the vessel body through the outer layer and the inner layer. A valve is provided on the discharge pipe. After the nickel plating of diamond micro powder is completed, the valve is opened, and the diamond micro powder and liquid are discharged from the vessel body through the discharge pipe.
[0014] The beneficial effects of this utility model through the above technical solution are as follows:
[0015] 1. This invention stirs the diamond micro powder and liquid in the reactor, emits ultrasonic waves, and controls the reaction temperature by heating with an oil bath, thereby ensuring the smooth progress of the chemical nickel plating reaction of diamond micro powder, effectively reducing or even avoiding the adhesion between diamond micro powders, and thus greatly increasing the amount of diamond micro powder processed in a single reaction.
[0016] 2. This utility model uses a first motor to drive the stirring blades to rotate, thereby achieving the stirring effect on the solution, effectively reducing the adhesion between diamond micro powders, effectively increasing the amount of diamond micro powder processed in a single batch, and reducing the labor intensity of workers.
[0017] 3. This invention uses an ultrasonic generator to emit ultrasonic waves into the solution. Under the action of ultrasound, the adhesion between diamond micro powders is further reduced, and the phenomena of incomplete plating and agglomeration are also avoided.
[0018] 4. The delivery pump of this utility model continuously delivers the reagent into the reactor through the dosing pipe, thereby controlling the reaction in the reactor to proceed at a uniform rate and ensuring the quality stability of the diamond micron powder electroless plating process.
[0019] 5. This utility model effectively controls the temperature inside the reactor by using oil bath heating. Specifically, hot oil is transported from the feed box pipeline and enters the gap between the inner and outer layers of the reactor through the circulation inlet. It is then transported to the feed box through the circulation outlet pipeline, thereby ensuring that the temperature inside the reactor is controlled at 85℃~95℃, and more preferably at around 90±2℃. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 .
[0021] Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 .
[0022] Figure 3 This is a schematic diagram of the structure of the vessel body of this utility model.
[0023] The attached diagram is labeled as follows: 1 is the mounting bracket, 2 is the vessel body, 3 is the cover, 4 is the circulation inlet, 5 is the circulation outlet, 6 is the first motor, 7 is the stirring shaft, 8 is the stirring blade, 9 is the ultrasonic generator, 10 is the drug inlet pipe, 11 is the second motor, 12 is the chute, 13 is the screw, 14 is the mounting base, 15 is the discharge pipe, and 16 is the valve. Detailed Implementation
[0024] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:
[0025] like Figures 1-3As shown, this embodiment provides a chemical plating reactor, including a mounting frame 1. The mounting frame 1 is equipped with a reactor body 2 and a cover 3. Before the chemical plating begins, diamond powder, nickel sulfate, sodium citrate, ammonia (28%), and pure water are added to the reactor body 2. Then, the cover 3 is placed on top. The cover 3 has a through hole to connect the inside and outside of the reactor body 2, ensuring communication between the inside of the reactor body 2 and the outside during the chemical plating process. The mounting frame 1 includes a support plate and a vertical rod. The vertical rod is fixedly mounted above the support plate, and a [missing information - likely a component or material] is fixedly mounted on the upper side of the vertical rod. The second motor 11 is fixedly connected to the vessel body 2 on one side of the upright. The support plate corresponds vertically to the vessel body 2. A downward sliding groove 12 is opened at the upper end of the upright. A screw 13 is fixedly connected to the output end of the second motor 11. The screw 13 extends into the sliding groove 12. A mounting seat 14 is slidably arranged in the sliding groove 12. The screw 13 is threadedly connected to the mounting seat 14. The mounting seat 14 extends out of the upright and is fixedly connected to the cover 3. The second motor 11 drives the screw to rotate, which drives the mounting seat 14 to move up and down, and drives the cover 3 to move up and down.
[0026] The reactor body 2 includes an inner layer and an outer layer, with a gap between them. A circulation inlet 4 is located at the lower end of the reactor body 2, and a circulation outlet 5 is located at the upper end. Both the circulation inlet 4 and the circulation outlet 5 are connected to the gap between the inner and outer layers. Both the circulation inlet 4 and the circulation outlet 5 are connected by pipes to a feed tank (not shown in the figure). The feed tank can supply hot water, hot steam, or hot oil into the gap. In this embodiment, the feed tank is filled with hot oil. By allowing the hot oil in the feed tank to enter the gap between the inner and outer layers along the circulation inlet 4, the hot oil level in the gap continuously rises. When it reaches the circulation outlet 5, the hot oil basically covers the reactor body 2. Subsequently, the hot oil is discharged from the circulation outlet 5 and piped back to the feed tank, completing the circulation flow of the hot oil. This hot oil circulation then heats the reactor body 2 in an oil bath, ensuring that the temperature of the reactor body 2 is controlled between 85℃ and 95℃, preferably 90±2℃, to ensure the smooth progress of the chemical plating reaction.
[0027] The cover 3 is slidably connected to the mounting frame 1, and the cover 3 is provided with a stirring assembly, an ultrasonic assembly, and a dosing assembly.
[0028] The stirring assembly is used to stir the liquid in the vessel 2. The stirring assembly includes a first motor 6, a stirring shaft 7, and stirring blades 8. The first motor 6 is fixedly installed on the top of the cover 3. The output end of the first motor 6 is fixedly connected to the stirring shaft 7. The first motor 6 drives the stirring shaft 7 to rotate. The lower end of the stirring shaft 7 extends into the lower part of the vessel 2. The stirring shaft 7 is provided with stirring blades 8. Multiple connecting seats are fixedly sleeved on the stirring shaft 7 at intervals. Multiple stirring blades 8 are circumferentially fixed on each connecting seat. The rotation of the stirring shaft 7 drives the multiple connecting seats to rotate, which in turn drives the multiple stirring blades 8 to rotate. Thus, the stirring blades 8 stir the solution in the vessel 2, effectively reducing the adhesion of diamond powder in the solution.
[0029] The ultrasonic component is used to emit ultrasonic waves into the vessel body 2. The ultrasonic component includes at least one ultrasonic generator 9. The ultrasonic generator 9 is an ultrasonic liquid treatment device of model GBS-SCF30A. The lower end of the ultrasonic generator 9 extends into the vessel body 2 through the cover 3 and is used to emit ultrasonic waves into the liquid in the vessel body 2 to further reduce the adhesion between diamond micro powders.
[0030] The dosing assembly is used to deliver a chemical agent into the vessel body 2. The dosing assembly includes an inlet pipe 10 that penetrates the cover 3 and extends into the vessel body 2. The inlet pipe 10 delivers the chemical agent into the vessel body 2. The inlet pipe 10 is connected to a delivery pump, which is a diaphragm pump. Multiple inlet pipes 10 are arranged circumferentially on the cover 3 and are all connected to the delivery pump. The multiple inlet pipes 10 allow the chemical agent to enter the vessel body 2 from multiple different locations and diffuse rapidly within the vessel body 2. The delivery pump is connected to a storage tank containing a chemical agent, specifically sodium hypophosphite and hydrogen phosphate. A sodium oxide mixed solution, with water as the solvent, is prepared in the reactor 2. After the solution is prepared, the cover 3 is placed on top. The stirring blades 8 and the ultrasonic transmitter 9 are both immersed in the solution. The first motor 6 is started to drive the stirring blades 8 to stir the solution and the diamond powder therein. The ultrasonic transmitter 9 is started to emit ultrasonic waves into the solution. Then, the delivery pump is started to deliver sodium hypophosphite into the reactor 2, so that the chemical plating reaction can begin. At the same time, the sodium hypophosphite solution is rapidly diffused after entering the reactor 2 through the setting of multiple inlet pipes 10, and the delivery rate of sodium hypophosphite is effectively controlled by the delivery pump to ensure that the reaction in the reactor 2 is in a stable and controllable state.
[0031] A discharge pipe 15 is fixedly installed at the lower end of the vessel body 2. The discharge pipe 15 extends into the vessel body 2 through the outer and inner layers. A valve 16 is installed on the discharge pipe 15. After the chemical plating reaction is completed, the valve 16 is opened, and the solution and the diamond micro powder that has been nickel-plated are discharged from the vessel body 2 through the discharge pipe 15 and transported to a positive pressure filter for pressure filtration and separation. After washing with water and pressure filtration and separation again, electroplating treatment is carried out. The waste liquid is collected, treated and reused.
[0032] The ammonia gas produced by the chemical plating reaction can be collected and transported to an absorption tower for treatment.
[0033] It should be noted that the capacity of the vessel 2 in this embodiment is 100L, and it can be increased as needed.
[0034] In operation, the second motor 11 first drives the cover 3 to move upward, and then the stirring shaft 7, its stirring blades 8, and the ultrasonic generator 9 all leave the vessel 2. A mixed solution of nickel sulfate, sodium citrate, ammonia (28%), and pure water is added to the vessel 2, along with diamond micro powder. Then, the second motor 11 drives the cover 3 to descend until it is in contact with the upper end of the vessel 2. The first motor 6 and the ultrasonic generator 9 are then activated to stir the solution and emit ultrasonic waves into the vessel 2 to prevent the diamond micro powder from sticking together during the chemical plating reaction. At the same time, hot oil is circulated through the feed box into the gap between the outer and inner layers for oil bath heating to ensure that the temperature inside the vessel 2 is 90±2℃. The delivery pump is then activated, and sodium hypophosphite is continuously delivered into the vessel 2 through multiple inlet pipes 10, so that the chemical nickel plating reaction begins. The speed at which sodium hypophosphite is delivered into the vessel 2 is adjusted at any time by the delivery pump to ensure that the reaction is in a stable and controllable state.
[0035] After the chemical nickel plating of the diamond powder is completed, the liquid and the nickel-plated diamond powder are transported to a positive pressure filter through the discharge pipe 15 for pressure filtration separation to complete the chemical nickel plating of the diamond powder. The separated diamond powder is then processed further.
[0036] The embodiments described above are merely preferred embodiments of this utility model and are not intended to limit the scope of implementation of this utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the patent claims of this utility model should be included within the scope of the patent application of this utility model.
Claims
1. A reaction vessel for chemical plating, characterized in that, Includes a mounting frame (1), on which a vessel body (2) and a cover body (3) are provided. The vessel body (2) includes an inner layer and an outer layer, with a gap between the inner and outer layers. The lower end of the vessel body (2) is provided with a circulation inlet (4) and the upper end is provided with a circulation outlet (5). Both the circulation inlet (4) and the circulation outlet (5) are connected to the gap between the inner and outer layers. Both the circulation inlet (4) and the circulation outlet (5) are connected to a feeding box via pipes. The cover (3) is slidably connected to the mounting bracket (1) and is provided with a stirring assembly, an ultrasonic assembly and a dosing assembly. The stirring assembly is used to stir the liquid in the vessel (2), the ultrasonic assembly is used to emit ultrasonic waves into the vessel (2), and the dosing assembly is used to deliver the medicine into the vessel (2).
2. The chemical plating reactor according to claim 1, characterized in that, The stirring assembly includes a first motor (6), a stirring shaft (7) and stirring blades (8). The first motor (6) is fixedly installed above the cover (3). The output end of the first motor (6) is fixedly connected to the stirring shaft (7). The lower end of the stirring shaft (7) extends into the lower part of the vessel body (2). The stirring blades (8) are installed on the stirring shaft (7).
3. The chemical plating reactor according to claim 2, characterized in that, Multiple connecting seats are fixedly sleeved on the stirring shaft (7) at intervals between the upper and lower parts, and multiple stirring blades (8) are fixedly arranged circumferentially on each connecting seat.
4. The chemical plating reactor according to claim 1, characterized in that, The ultrasonic component includes at least one ultrasonic generator (9), the lower end of which extends through the cover (3) into the vessel body (2) for emitting ultrasonic waves into the liquid inside the vessel body (2).
5. The chemical plating reactor according to claim 1, characterized in that, The dosing assembly includes a dosing pipe (10), which extends through the cover (3) into the vessel body (2). The dosing pipe (10) is connected to a delivery pump, which is connected to a storage tank containing the drug.
6. The chemical plating reactor according to claim 5, characterized in that, The drug inlet pipe (10) is configured as a plurality of them, and the plurality of drug inlet pipes (10) are arranged circumferentially on the cover (3), and the plurality of drug inlet pipes (10) are connected together to the delivery pump.
7. The chemical plating reactor according to claim 1, characterized in that, The mounting bracket (1) includes a support plate and a vertical rod. The vertical rod is fixedly installed on the top of the support plate. A second motor (11) is fixedly installed on the upper side of the vertical rod. The vessel body (2) is fixedly connected to one side of the vertical rod. The support plate corresponds vertically to the vessel body (2). A sliding groove (12) is opened downward at the upper end of the vertical rod. A screw (13) is fixedly connected to the output end of the second motor (11). The screw (13) extends into the sliding groove (12). A mounting seat (14) is slidably installed in the sliding groove (12). The screw (13) is threadedly connected to the mounting seat (14). The mounting seat (14) is fixedly connected to the cover (3) on the side extending out of the vertical rod.
8. The chemical plating reactor according to claim 1, characterized in that, The lower end of the vessel body (2) is fixedly provided with a discharge pipe (15), which extends into the vessel body (2) through the outer layer and the inner layer, and a valve (16) is provided on the discharge pipe (15).