Granular cuprous chloride and production method thereof
By combining hot rolling and torch-type combustion reaction with granulator design, the problems of difficult wastewater treatment, high cost, poor activity and high safety risks in the existing cuprous chloride production are solved, and the efficient and low-cost production of high-purity, high-activity granular cuprous chloride is achieved.
Patent Information
- Application Number
- CN202510792442.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-13
- Publication Date
- 2025-09-16
AI Technical Summary
Existing methods for producing cuprous chloride have problems such as difficult wastewater treatment, high production costs, poor activity of powdered products, limited scope of application, and high safety risks, and the demand for granular cuprous chloride is increasing.
The hot rolling and torch combustion reaction are combined with a granulator design. Through the combination of hot melt roller, combustion reactor and granulator, binder-free granulation is achieved, the reaction rate and production capacity are controlled, and high-purity, high specific surface area granular cuprous chloride is generated.
The invention realizes binder-free granulation, reduces production cost, improves production efficiency, increases the specific surface area and activity of granular cuprous chloride, has high safety and wide application range.
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Figure CN120646895A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of cuprous chloride preparation, in particular to granular cuprous chloride and a production method thereof. Background Art
[0002] Cuprous chloride is an off-white, crystalline powder or ground powder. It is irritating, toxic and corrosive and is used as a raw material in the production of products such as pigments, coatings and catalysts.
[0003] The existing methods for producing cuprous chloride mainly include wet production and dry production. Among them, the wet production mainly uses a production device for the reduction reaction of copper chloride solution with SO2 and a device for the reduction reaction of copper chloride solution with elemental copper. A large amount of wastewater is generated during the production process. Wastewater treatment must not only solve the problem of heavy metal copper polluting the environment, but also solve the problem of organic matter in the rinse liquid polluting the environment. Subsequent wastewater treatment is difficult and the treatment cost is high. Dry production mainly uses a device that burns copper and chlorine to produce chlorination and reduction reactions. This device generally uses a combustion furnace combined with a crusher to produce powdered cuprous chloride. The production process has poor continuity, the production site environment is harsh, and it is difficult to feed materials. It also poses safety risks due to the difficulty in controlling the combustion reaction.
[0004] In addition, most cuprous chloride products are in powder form, and due to its strong irritation, the dust it produces poses a serious occupational hazard. Therefore, the demand for granular cuprous chloride is increasing.
[0005] However, most existing cuprous chloride granules are bonded together using adhesives. This not only increases production costs, but also reduces the surface area and activity of adhesive-bonded cuprous chloride granules, leading to slow downstream product production. Furthermore, adhesive-bonded cuprous chloride granules have limited applications, require specific adhesives, and suffer from low production efficiency. Summary of the Invention
[0006] The present invention can solve the above-mentioned shortcomings in the production of existing granular cuprous chloride products by providing a granular cuprous chloride and a production method thereof.
[0007] In order to solve the above technical problems, the present invention provides a method for producing granular cuprous chloride, comprising the following steps: (1) Preheating of copper raw materials: using the waste heat from hot rolling and combustion reaction to preheat the copper raw materials; (2) Hot rolling to prepare copper rods: the preheated copper raw material is placed in a hot melt rolling mill to be heated to form a metallic copper melt, and the metallic copper melt is then squeezed from the bottom of the hot melt rolling mill into a pipe with a cooling function through an extrusion assembly, and the cooling temperature of the pipe is controlled to obtain a high-temperature copper rod of 500-600°C; (3) The high-temperature copper rod and chlorine gas are combusted to generate a cuprous chloride melt: the high-temperature copper rod is pushed into the combustion reactor from the center port at the bottom end of the combustion reactor, and the high-temperature copper rod and the chlorine gas simultaneously input from the center gas input port at the top end of the combustion reactor are subjected to a torch-type combustion reaction at the head of the copper rod to generate a cuprous chloride melt; (4) Granulating the melt into a granular cuprous chloride product: the cuprous chloride melt flows from the melt outlet on the side wall of the combustion reactor into the granulator, and granulates to obtain granular cuprous chloride; The granulator includes a drum, a cooling assembly, a transmission assembly, a granulation pressing plate and a retaining ring; the drum is horizontally mounted on a support frame and driven to rotate by the transmission assembly, and the cooling assembly is integrated inside the drum; the retaining ring is eccentrically sleeved on the outside of the drum and fixed to the support frame; one end of the granulation pressing plate is sleeved on the pin of the drum end cover, and the other end is elastically connected to the drum wall via a telescopic spring; the drum wall and the bottom surface of the granulation pressing plate are both provided with hemispherical particle model grooves, and granular cuprous chloride is formed by periodic pressing.
[0008] In a preferred embodiment of the present invention, the hot melt rolling device is a conical cylinder, the top of which is provided with the extrusion assembly, and the bottom of which is provided with a bottom opening for discharging the molten copper.
[0009] In a preferred embodiment of the present invention, the combustion reactor is a cylindrical barrel, the center opening of its bottom end is the copper rod input port, one side of its bottom end is provided with the melt outlet, and the center of its top end is provided with the gas input port.
[0010] In a preferred embodiment of the present invention, the pipe is a U-shaped pipe, one end of which is connected to the bottom of the hot melt rolling mill, and the other end is connected to the bottom center of the combustion reactor, and an air-cooled heat sink is provided on the outside of the pipe wall.
[0011] In a preferred embodiment of the present invention, the point where the retaining ring has the minimum eccentric distance from the roller is located at the top of the roller.
[0012] In a preferred embodiment of the present invention, in step (1), the copper raw material includes at least one of copper slag, copper block, copper chips or sponge copper powder.
[0013] In a preferred embodiment of the present invention, in step (1), the preheating temperature is 350-400°C.
[0014] In a preferred embodiment of the present invention, in step (2), the hot rolling temperature is 800-1000°C.
[0015] In a preferred embodiment of the present invention, in step (3), the temperature of the torch combustion reaction is 500-600°C; and the input mass ratio of the copper rod and the chlorine gas is 63:36.
[0016] In order to solve the above technical problems, the present invention provides another granular cuprous chloride, which is characterized in that it is prepared by the above production method.
[0017] The beneficial effects of the present invention are as follows: the granular cuprous chloride and the production device and method thereof can, on the one hand, realize binder-free granulation through the design of a granulator, thereby saving energy and reducing emissions, and the obtained granular cuprous chloride has high purity and a large specific surface area; on the other hand, a torch-type combustion reaction is generated between chlorine gas and the center of the top end of a copper rod, so that the reaction is fully and completely achieved, and then the cupric chloride melt sliding down from the top end of the copper rod reacts with elemental copper on the wall of the copper rod to generate pure cuprous chloride, thereby effectively controlling the reaction rate and production capacity, and having low production cost, high production efficiency, and energy saving and emission reduction. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 This is a schematic diagram of the three-dimensional structure of a production device used in a method for producing granular cuprous chloride according to the present invention; Figure 2 is an enlarged structural diagram of the drum shown; Figure 3 It is an enlarged structural diagram showing that the granulation pressing plate on the drum surface is in a fully pressed state; Figure 4 It is an enlarged structural schematic diagram of the granulation pressing plate on the drum surface in a non-pressing state; The markings of the components in the accompanying drawings are as follows: 10. Preheat the drying room; 20. Hot melt rolling device, 21. Pipeline, 22. Air-cooled heat sink, 221. Cooling source inlet, 222. Cooling source outlet; 30. Combustion reactor, 31. Gas input port, 32. Feed port, 33. Exhaust port, 34. Extension pipe; 40. Granulator, 41. Roller, 42. Transmission assembly, 43. Granulation plate, 44. Retaining ring, 45. Granule mold groove, 46. Granule receiving tube, 47. Debris receiving tube, 411. Pin, 412. Telescopic spring; 51. Hydraulic cylinder piston rod, 52. Squeeze plate; 60. Compressed air source; 70. Combustion exhaust gas processor; 80. Conveying auger. DETAILED DESCRIPTION
[0019] The preferred embodiments of the present invention are described in detail below with reference to the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more precise definition of the protection scope of the present invention.
[0020] like Figure 1As shown, the present invention discloses a production device for granular cuprous chloride, comprising a hot melt rolling device 20 and a combustion reactor 30 arranged in a preheating drying room 10 and a granulator 40 arranged outside the preheating drying room 10.
[0021] Specifically, the hot melt rolling device 20 is a conical cylinder, a top end of which is provided with a detachable extrusion assembly, and a bottom end of which is provided with a bottom opening for discharging the molten copper.
[0022] The inner cavity of the hot-melt rolling mill 20 is used to hold, melt, and hot-roll raw copper. The raw copper includes at least one of copper slag, copper ingots, copper chips, or sponge copper powder. The method of producing copper rods using the hot-melt rolling mill 20 utilizes widely available and inexpensive scrap copper, such as copper slag, copper ingots, copper chips, or sponge copper powder, thereby effectively reducing the production cost of cuprous chloride.
[0023] The extrusion assembly consists of a hydraulic cylinder piston rod 51 and an extrusion plate 52 connected to its bottom end. The outer diameter of the extrusion plate 52 is equal to or smaller than the inner diameter of the hot-melt rolling mill 20. The hydraulic cylinder piston rod 51 is used to squeeze the copper material downward. When the copper material needs to be added to the hot-melt rolling mill 20, the extrusion assembly can be removed (pulled out).
[0024] The combustion reactor 30 is a cylindrical barrel, the center opening of its bottom end is the copper rod input port, and a melt outlet is provided on one side of its bottom end for the outflow of the cuprous chloride melt; a gas input port 31 is provided at the center of its top end. The top of the combustion reactor 30 is also provided with a feed port 32 and an exhaust port 33 on both sides of the gas input port 21. The gas input port 31 is connected to a chlorine gas pipeline for introducing chlorine gas into the combustion reactor 30 for combustion reaction with the copper rod. The feed port 32 is used to re-introduce the recovered cuprous chloride residue into the combustion reactor 30 for melting into a melt and re-granulation; the exhaust port 33 is connected to the combustion exhaust gas processor 70.
[0025] The positioning of gas inlet 31 allows the chlorine gas introduced therein to react with the copper rod extending into combustion reactor 30, generating a torch-like combustion reaction at the center of the copper rod's head. The combustion creates a depression at the center of the copper rod's head. The resulting copper chloride melt overflows from the edge of the depression at the top of the copper rod and slides downward, reacting with the elemental copper on the outside of the copper rod to form a cuprous chloride melt.
[0026] The torch-type combustion reaction, on the one hand, is completely reactive and can be controlled by controlling the input speed of chlorine, making the reaction speed controllable and highly safe; on the other hand, production capacity can be controlled by designing the inner diameter of the cooling pipe and controlling the extrusion speed of the extrusion disk 52 and the chlorine input speed.
[0027] The bottom opening of the hot-melt rolling mill 20 and the bottom center opening of the combustion reactor 30 are connected by a cooling pipe 21. Specifically, the pipe 21 is a U-shaped pipe, the inner cavity of which is used to form the copper rod. The U-shaped pipe design reduces the resistance of the hot-melt rolling mill to produce the copper rod, slows the flow rate of the melt, and increases the heat dissipation area. The pipe 21 is equipped with a heating belt (not shown) inside the pipe wall, and air-cooled heat sinks 22 are installed outside the pipe wall. These heat sinks can adjust the temperature of the hot-rolled copper rod in real time, ensuring that the hot-rolled copper rod inserted into the combustion reactor 30 reaches the combustion temperature of 500-600°C, ensuring the combustion reaction temperature.
[0028] Specifically, the cooling source inlet end 221 of the air-cooled heat sink 22 is located at one end of the combustion reactor 30 and extends to the outside of the preheating oven 10, where it is connected to the compressed air source 60. The cooling source outlet end 222 of the air-cooled heat sink 22 is openly positioned within the preheating oven 10. Cold air from the compressed air source 60 enters the air-cooled heat sink 22 and exchanges heat with the copper rods within the pipe 21, cooling the copper rods. The air after the heat exchange enters the preheating oven 10 through the cooling source outlet end 222, thereby channeling waste heat from the cooling pipe or combustion into the preheating oven 10 for reuse, such as preheating copper raw materials, hot-melt rolling mills, and the combustion reactor. This can save 50% of heating energy.
[0029] A melt outlet is provided at the lower side of the combustion reactor 30, connected to an extension pipe 34. The extension pipe 34 extends from the preheating oven 10 and connects to the granulator 40. The cuprous chloride melt generated in the combustion reactor 30 flows sequentially through the melt outlet and the extension pipe 34 into the granulator 40 to produce granular cuprous chloride.
[0030] Specifically, if Figure 2 As shown, the granulator 40 includes a roller 41, a cooling assembly, a transmission assembly 42, a granulation pressing plate 43 and a retaining ring 44.
[0031] The drum 41 is placed on a support frame for horizontal rotation. Both ends of its central axis are connected to the power output shaft of the transmission assembly 42. The drum 41 is driven by the transmission assembly 42 to rotate clockwise. The transmission assembly 42 can be a rotary drive motor. The cooling assembly is integrated into the drum 41 to continuously cool the drum.
[0032] One end of the granulation pressing plate 43 is sleeved on the pin 411 of the end cover of the drum 41 , and the other end is elastically connected to the drum wall via a telescopic spring 412 .
[0033] The opposing surfaces of the granulation pressing plate 43 and the roller 41 are both provided with hemispherical particle model grooves 45 for forming granular cuprous chloride.
[0034] The granulation pressing plate 43 is curved, and its curvature matches the inner wall surface of the retaining ring 44 .
[0035] The retaining ring 44 is eccentrically sleeved on the outside of the roller 41 and fixed on the support frame, and the point with the minimum eccentric distance from the roller 41 is at the top of the roller, that is, the left side of the roller 41 receives the cuprous chloride melt. When the melt rotates from left to right with the roller to the top of the roller, the particle model groove on the roller wall coincides with the particle model groove on the bottom surface of the granulation pressing plate 43, and particles are formed. At the same time, the excess cuprous chloride is squeezed and falls into fragments.
[0036] Specifically, as the cuprous chloride melt rotates from left to right with the drum 41 to the top of the drum, the retaining ring 44 squeezes downward, compressing the telescopic spring 412 at the right end of the granulation platen. This closes the particle mold grooves 45 on the drum 41 and the granulation platen 43, achieving extrusion molding of granular cuprous chloride. Under the action of the cooling assembly within the drum, microcracks form inside the granular cuprous chloride due to rapid cooling, increasing its specific surface area. As the drum 41 continues to rotate, the granulation platen 43 gradually moves away from the retaining ring 44. Under the action of the elastic restoring force of the telescopic spring 412, the granulation platen 43 is lifted up, separating the two closed particle mold grooves 45 and achieving the ejection of the granular cuprous chloride.
[0037] The structural design of the granulator 40 can, on the one hand, effectively improve the granulation rate and purity; on the other hand, the cuprous chloride flowing onto the drum wall is rapidly cooled by the cooling assembly (water cooling) inside the drum, so that microcracks are generated inside the obtained cuprous chloride granules due to rapid cooling, forming gaps, thereby increasing the specific surface area of the cuprous chloride granules, enhancing the activity, and improving the reaction speed of the downstream product reaction.
[0038] Furthermore, the production device further includes a particle receiving pipe 46 and a debris receiving pipe 47. The particle receiving pipe 46 and the debris receiving pipe 47 are respectively arranged side by side on the lower half of the retaining ring 44 and are symmetrically arranged in a tilted manner along the rotation direction of the drum 41.
[0039] Specifically, the granule receiving pipe 46 is used to receive the granular cuprous chloride separated from the drum and transport the received granular cuprous chloride to the packaging machine for packaging.
[0040] The fragment receiving pipe 47 is used to receive cuprous chloride fragments. The bottom end of the fragment receiving pipe 47 is connected to the inlet of the conveying auger 80, and the outlet of the conveying auger 80 is connected to the feed port 32 at the top of the combustion reactor 30. The cuprous chloride fragments received by the fragment receiving pipe 47 are transported upward by the conveying auger 80 into the inner cavity of the combustion reactor 30, where they are heated again and melted into a cuprous chloride melt for re-granulation.
[0041] In addition, the inner linings of the hot melt rolling mill 20 , the cooling pipe 21 and the combustion reactor 30 are all made of ZrO 2 ceramic material, which has strong corrosion resistance and can extend the service life of the hot melt rolling mill 20 , the cooling pipe 21 and the combustion reactor 30 .
[0042] The production of granular cuprous chloride using the above-mentioned production device specifically includes the following steps: (1) Preheating treatment: The copper raw material is placed in the preheating drying room 10, and the copper raw material is preheated to 350-400°C using the waste heat from hot rolling and the waste heat from combustion reaction; The copper raw materials include copper slag, copper blocks, copper chips or sponge copper powder, which are miscellaneous copper with wide sources and low cost, thereby effectively reducing the manufacturing cost of cuprous chloride.
[0043] (2) Hot-rolled copper rod: The preheated copper raw material is placed into the inner cavity of the hot melt rolling device 20 by a robotic arm. After being heated to 800-1000°C in the hot melt rolling device 20, the copper raw material is melted. The hydraulic cylinder piston rod 51 then pushes the extrusion plate 52 to squeeze the molten copper raw material into the cooling pipe 21. Under the combined action of the heating belt and the air-cooled heat sink 22, a high-temperature copper rod of 500-600°C is formed.
[0044] (3) Combustion reaction: Under the continuous squeezing action of the piston rod of the hydraulic cylinder and the cooling action of the air-cooled heat sink, the copper rod extends from the bottom center opening of the combustion reactor 30 into the central position of the combustion reactor 30 and is cooled to 500-600°C, which is the temperature of the torch combustion reaction. The copper rod and the chlorine gas entering from the gas inlet 31 simultaneously undergo a torch combustion reaction at the head of the copper rod to generate a cupric chloride melt. The cupric chloride melt overflows along the top edge of the copper rod and flows downward along the outer wall of the copper rod, reacting with the metallic copper on the outer wall of the copper rod to generate a cuprous chloride melt.
[0045] Cu + Cl2 → CuCl2; Cu + CuCl2 → 2CuCl; The inner diameter of the cooling pipe 21 is designed to maintain a copper rod to chlorine mass ratio of 63:36 by controlling the extension speed of the hydraulic cylinder piston rod 51 and the flow rate of the chlorine. This means that the extrusion speed is controlled so that the mass of the copper rod introduced into the combustion reactor is 63 kg / minute, while the mass of chlorine introduced into the gas inlet is 36 kg / minute. This allows for control of the production rate of cuprous chloride. Adjusting the extension speed of the hydraulic cylinder piston rod 51 is simple and convenient for adjusting the production rate.
[0046] (4) Granulation: The cuprous chloride melt flows through the extension tube 34 to the wall of the drum 41, enters the hemispherical particle model groove on the drum 41 and accumulates on the drum wall. As the drum rotates, under the extrusion action of the retaining ring 44, the granulation pressing plate 43 on the upper half of the drum 41 squeezes the cuprous chloride accumulation layer on the drum wall and is gradually pressed down until the hemispherical particle model groove on it is closed with the hemispherical particle model groove on the drum, forming a closed space in which spherical granular cuprous chloride is generated, and the excess cuprous chloride is squeezed into fragments and falls.
[0047] (5) Particle recovery: As the drum 41 continues to rotate, the granulation pressing plate 43 located in the upper half of the drum 41 gradually breaks away from the squeezing effect of the retaining ring 44 and slowly loosens under the action of the telescopic spring. The granular cuprous chloride generates cracks inside under the rapid cooling force of the cooling component in the drum to increase the specific surface area. When the drum continues to rotate until the telescopic spring 412 is fully restored to fully open the granulation pressing plate 43, the granular cuprous chloride naturally falls into the granule receiving tube 46; At the same time, the excess cuprous chloride solids on the drum wall are squeezed and cooled by the granulation pressing plate 43, bursting into fragments, falling into the fragment receiving pipe 47, and then entering the conveying auger 80. They are transported upward to the combustion reactor 30 by the conveying auger 80 and then melted into a cuprous chloride melt for granulation.
[0048] Example 1 Using copper slag as the copper raw material, granular cuprous chloride is produced in the above-mentioned production device. The specific steps are as follows: (1) Preheating treatment: The copper slag is placed in the preheating drying room 10, and the waste heat is used to preheat the copper raw material to 400°C.
[0049] (2) Hot-rolled copper rods: The preheated copper slag is placed into the inner cavity of the hot melt rolling mill 20 by a robotic arm. After being heated to 850°C in the hot melt rolling mill 20, the hydraulic cylinder piston rod 51 is used to push the extrusion plate 52 to squeeze the copper raw material into the pipe 21. The temperature is controlled by the air-cooled heat sink 22 (and possible heating belt) to form the required high-temperature copper rods.
[0050] (3) Combustion reaction: Under the action of the air-cooled heat sink 22, the copper rod in the pipe 21 is cooled to 500°C and enters the center position of the combustion reactor 30 through the bottom center port of the combustion reactor 30. It undergoes a torch-type combustion reaction with the chlorine gas entering from the gas inlet 31 at the top middle part of the copper rod head to generate a cupric chloride melt. The cupric chloride melt escapes from the top edge of the copper rod and flows downward, reacting with the outer wall of the copper rod (i.e., with elemental copper) to generate a cuprous chloride melt.
[0051] Specifically, the inner diameter of the cooling pipe 21 is designed to be 20 cm, and the cross-sectional area of the cooling pipe 21 is 314 cm 2 .
[0052] When the downward speed of the hydraulic cylinder piston rod 51 in the hot melt rolling device is controlled to be 10 cm / min, the speed at which the copper rod extends into the combustion reactor is 10 cm / min.
[0053] The amount of copper input per minute is: 314cm 2 ×10cm×8.9g / cm 3 =28kg; copper density is 8.9g / cm 3 ; The amount of chlorine required per minute is 16 kg to meet the input mass ratio of copper rod and chlorine of 63:36.
[0054] Therefore, it is necessary to adjust the opening of the flow valve on the chlorine pipeline. It can be seen that the chlorine flow rate is 16 kg / min.
[0055] (4) Granulation: The cuprous chloride melt flows through the extension tube 34 to the wall of the drum 41, enters the hemispherical particle model groove 45 on the drum wall and accumulates on the drum wall. As the drum rotates, under the extrusion of the retaining ring 44, the granulation pressing plate 43 on the upper half of the drum 41 is pressed until the granulation pressing plate 43 and the hemispherical particle model groove 45 on the drum 41 are closed, and spherical granular cuprous chloride is generated in the closed space, wherein the excess cuprous chloride on the drum wall is squeezed into fragments.
[0056] (5) Particle recovery: As the drum 41 continues to rotate, the granulation pressing plate 43 gradually breaks away from the squeezing effect of the retaining ring 44 and slowly loosens under the action of the telescopic spring 412. The granular cuprous chloride is pushed toward the granulation pressing plate 43 under the rapid cooling effect of the cooling component in the drum. When the drum continues to rotate until the telescopic spring 412 is fully restored and the granulation pressing plate 43 is fully opened, the granular cuprous chloride naturally falls into the granule receiving tube 46; At the same time, the excess cuprous chloride solid on the drum wall (i.e., the cuprous chloride outside the particle mold groove) is squeezed by the granulation pressing plate 43 and rapidly cooled by the cooling water in the drum, and explodes into fragments, falls into the fragment receiving pipe 47, enters the conveying auger 80, and is transported upward by the conveying auger 80 to the combustion reactor 30 and then melted into a cuprous chloride melt for granulation.
[0057] The performance test of the prepared granular cuprous chloride showed that its specific surface area was 120 m² / g and its purity was 99.6%.
[0058] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention's description and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.
Claims
1. A method for producing granular cuprous chloride, characterized in that: The steps include: (1) Preheating of copper raw materials: using the waste heat from hot rolling and combustion reaction to preheat the copper raw materials; (2) Hot rolling to prepare copper rods: the preheated copper raw material is placed in a hot melt rolling mill to be heated to form a metallic copper melt, and the metallic copper melt is then squeezed from the bottom of the hot melt rolling mill into a pipe with a cooling function through an extrusion assembly, and the cooling temperature of the pipe is controlled to obtain a high-temperature copper rod of 500-600°C; (3) The high-temperature copper rod and chlorine gas are combusted to generate a cuprous chloride melt: the high-temperature copper rod is pushed into the combustion reactor from the center port at the bottom end of the combustion reactor, and the high-temperature copper rod and the chlorine gas simultaneously input from the center gas input port at the top end of the combustion reactor are subjected to a torch-type combustion reaction at the head of the copper rod to generate a cuprous chloride melt; (4) Granulating the melt into a granular cuprous chloride product: the cuprous chloride melt flows from the melt outlet on the side wall of the combustion reactor into the granulator, and granulates to obtain granular cuprous chloride; The granulator includes a drum, a cooling assembly, a transmission assembly, a granulation pressing plate and a retaining ring; the drum is horizontally mounted on a support frame and driven to rotate by the transmission assembly, and the cooling assembly is integrated inside the drum; the retaining ring is eccentrically sleeved on the outside of the drum and fixed to the support frame; one end of the granulation pressing plate is sleeved on the pin of the drum end cover, and the other end is elastically connected to the drum wall via a telescopic spring; the drum wall and the bottom surface of the granulation pressing plate are both provided with hemispherical particle model grooves, and granular cuprous chloride is formed by periodic pressing.
2. The production method according to claim 1, characterized in that The hot melt rolling device is a conical cylinder, the top of which is provided with the extrusion assembly, and the bottom of which is provided with a bottom opening for discharging the molten copper.
3. The production method according to claim 2, characterized in that The combustion reactor is a cylindrical barrel, the center opening of its bottom end is a copper rod input port, one side of its bottom end is provided with the melt outlet, and the center of its top end is provided with the gas input port.
4. The production method according to claim 3, characterized in that The pipeline is a U-shaped pipeline, one end of which is connected to the bottom opening of the hot melt rolling device, and the other end is connected to the bottom center opening of the combustion reactor. The outside of the pipeline wall is provided with air-cooling fins.
5. The production method according to claim 1, characterized in that The point where the retaining ring has the minimum eccentric distance from the roller is located at the top of the roller.
6. The production method according to claim 1, characterized in that In step (1), the copper raw material includes at least one of copper slag, copper block, copper chips or sponge copper powder.
7. The production method according to claim 1, characterized in that In step (1), the preheating temperature is 350-400°C.
8. The production method according to claim 1, characterized in that In step (2), the hot rolling temperature is 800-1000°C.
9. The production method according to claim 1, characterized in that In step (3), the temperature of the torch combustion reaction is 500-600°C; the input mass ratio of the copper rod and the chlorine gas is 63:
36.
10. A granular cuprous chloride, characterized in that: The product is prepared by the production method according to any one of claims 1 to 9.