Four-in-one graphite synthesis furnace with double-layer movable shell

Abstract

The invention relates to the technical field of hydrogen chloride synthesis, in particular to a four-in-one graphite synthesis furnace with a double-layer movable shell. The synthetic furnace comprises a synthetic furnace body, the synthetic furnace body comprises a feeding part, an outer furnace body, a furnace bottom part and a middle supporting rod, the outer furnace body is rotationally arranged between the feeding part and the furnace bottom part, two feeding pipes are arranged at the top of the feeding part, two feeding cavities are formed in the feeding part, one ends of the two feeding cavities are connected with the feeding pipes, and the other ends of the two feeding cavities are connected with the middle supporting rod. And the other end is communicated with the interior of the outer furnace body. The inner ring body, the outer ring body and the outer furnace body cooperatively rotate and operate, so that the interior of the outer furnace body can be accurately divided, synthesis, cooling, separation and purification required in the hydrogen chloride gas synthesis process can be completed in the same area, the time and energy consumed for transferring gas among different devices are reduced, and the production efficiency is improved. The occupied area of equipment is reduced, and the safety and the stability of the synthesis process are improved.

Description

Technical Field

[0001] The invention relates to the technical field of hydrogen chloride synthesis, in particular to a four-in-one graphite synthesis furnace with a double-layer movable shell. Background Art

[0002] In the field of chemical production, the synthesis of hydrogen chloride is an extremely important process because hydrogen chloride plays a key role in the production of many chemical products. For example, it can be used to manufacture important chemical products such as polyvinyl chloride and hydrochloric acid. Hydrogen chloride is synthesized from chlorine and hydrogen through an exothermic reaction. This process releases a lot of heat. Graphite has high high temperature resistance, corrosion resistance and good thermal conductivity, which enables it to withstand the high temperature generated by the synthesis reaction, resist the erosion of gases and products, and achieve efficient heat transfer to reduce energy consumption. Therefore, graphite is often used in the interior of hydrogen chloride gas synthesis furnaces today. In order to reduce energy consumption, the four steps of synthesis, cooling, separation and purification in the hydrogen chloride synthesis process are usually carried out in a graphite synthesis furnace to form a four-in-one graphite synthesis furnace; However, the existing four-in-one graphite synthesis furnace has a simple internal structure, and the hydrogen chloride gas occupies different spaces during each of the four steps, making the entire synthesis furnace larger. This larger volume not only complicates the internal structure of the furnace, but also reduces heat transfer efficiency, thereby affecting the cooling effect, separation and purification efficiency. In addition, the large footprint also limits its application in places with limited space, affecting the flexible layout of production sites. In view of this, we propose a four-in-one graphite synthesis furnace with a double-layer movable shell. Summary of the Invention

[0003] The object of the present invention is to provide a four-in-one graphite synthesis furnace with a double-layer movable shell to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned object, the present invention provides a four-in-one graphite synthesis furnace with a double-layer movable shell, comprising a synthesis furnace body, wherein the synthesis furnace body comprises a feed piece, an outer furnace body, a furnace bottom piece and a middle support rod, wherein the outer furnace body is rotatably arranged between the feed piece and the furnace bottom piece, and the middle support rod is located between the feed piece and the furnace bottom piece and is used to support the feed piece, wherein two feed pipes for conveying chlorine and hydrogen respectively are provided on the top of the feed piece, and two feed cavities are provided inside the feed piece, wherein one end of the two feed cavities is connected to the feed pipe, and the other end thereof is communicated with the interior of the outer furnace body; The inner part of the outer furnace body is provided with a double-layer inner shell mechanism, which divides the inner part of the outer furnace body into an inner synthesis chamber and an outer synthesis chamber. The inner diameter of the inner synthesis chamber is smaller than that of the outer synthesis chamber, which can promote the merging of hydrogen and chlorine. The top end of the double-layer inner shell mechanism is connected to an inner driving mechanism. Driven by the inner driving mechanism, the double-layer inner shell mechanism can rotate inside the outer furnace body, connecting the inner synthesis chamber and the outer synthesis chamber, thereby promoting the cooling of the hydrogen chloride gas. An external driving mechanism is installed on the outer wall of the outer furnace body. Driven by the external driving mechanism, the outer furnace body can drive the hydrogen chloride gas inside thereof to be centrifugally separated. At the same time, the double-layer inner shell mechanism can isolate the purified pure hydrogen chloride gas.

[0005] As a further improvement of the present technical solution, the double-layer inner shell mechanism includes a top rail installed at the opening at the upper end of the outer furnace body, and the bottom of the inner cavity of the outer furnace body is fixedly connected to the bottom of the inner rail. The bottom rail and the top rail are installed in alignment, and an inner movable shell is movably connected between the top rail and the bottom rail. The inner movable shell is composed of an inner ring body and an outer ring body. The outer wall of the inner ring body is in a fit state with the inner wall of the outer ring body, and the end of the inner ring body close to the top rail is lower than the outer ring body.

[0006] As a further improvement of the present technical solution, the internal driving mechanism includes a support tube fixedly connected to the top of the feed piece, the internal rotation connection of the support tube is a movable shaft body, the movable shaft body is formed by the inner sleeve shaft and the outer sleeve shaft, the end of the inner sleeve shaft close to the outer furnace body extends out of the surface of the outer sleeve shaft, the inner sleeve shaft and the outer sleeve shaft are fixedly connected to the end surface close to the outer furnace body with an extension support rod, and the two extension support rods are symmetrically arranged, and the top rail bar is close to the end surface of the inner synthesis bin. The other ends of the two extension support rods are respectively connected to the inner ring body and the outer ring body through the sliding holes, and the top end of the movable shaft body is coaxially connected to the multi-axis drive motor, and the multi-axis drive motor is fixedly mounted on the top of the support tube.

[0007] As a further improvement of the present technical solution, the two sliding holes are both opened at 350 degrees, and the inner walls of the two sliding holes are both installed with groove bags, which are used to seal the interior of the sliding holes.

[0008] As a further improvement of the present technical solution, the external drive mechanism includes a supporting circular plate fixedly connected to the outer wall of the furnace bottom piece, a driven gear ring is fixedly connected to the lower end of the outer wall of the outer furnace body, a driving gear is meshed and connected to the surface of the driven gear ring, the driving gear is coaxially connected to the single-axis drive motor, the single-axis drive motor is fixedly connected to the bottom of the supporting circular plate, the contact ends of the outer furnace body and the feed piece and the furnace bottom piece are all installed with sealing gaskets, the lower end surface of the outer furnace body is fixedly connected to a side discharge pipe, and the side discharge pipe is used to discharge hydrogen chloride gas with lower purity.

[0009] As a further improvement of the present technical solution, the inner ring body and the outer ring body are fixedly connected to a support ridge at one end close to the inner wall of the bottom rail, and the inner walls on both sides of the bottom rail are provided with rail grooves that fit the surface of the support ridge.

[0010] As a further improvement of this technical solution, a visual window is opened on the surface of the support tube, and corresponding tubes are installed at the middle ends of the outer sleeve shaft and the inner sleeve shaft near the visual window. The two corresponding tubes are respectively equivalent in shape to the outer ring body and the inner ring body.

[0011] As a further improvement of the present technical solution, a discharge pipe is installed inside the furnace bottom part, one end of the discharge pipe is plugged into the interior of the outer furnace body, and a one-way valve is installed inside the end of the discharge pipe close to the outer furnace body, and the other side of the discharge pipe is connected to a discharge pump, and the discharge pump, discharge pipe and one-way valve are all made of corrosion-resistant materials.

[0012] Compared with the prior art, the present invention has the following beneficial effects: 1. In the four-in-one graphite synthesis furnace with a double-layer movable shell, the inner ring body and the outer ring body are arranged inside the outer furnace body, so that the interior of the outer furnace body can be separated into an inner synthesis chamber and an outer synthesis chamber. When hydrogen and chlorine are fed, they can directly enter the inner synthesis chamber. The reaction of hydrogen and chlorine to synthesize hydrogen chloride requires effective collision between molecules to occur. Since the inner diameter of the inner synthesis chamber is relatively small, the distance between molecules in the small space is relatively close, which increases the probability of molecular collision. Therefore, in the inner synthesis chamber, hydrogen and chlorine molecules are more likely to meet and collide, thereby promoting the reaction; 2. In this four-in-one graphite synthesis furnace with a double-layer movable shell, after the synthesis of hydrogen chloride gas is completed, a multi-axis drive motor is used to drive the inner and outer ring bodies respectively, so that the inner synthesis chamber and the outer synthesis chamber are merged. The airflow generated by the rotation of the inner and outer ring bodies can promote gas flow and heat exchange. The movement of the airflow makes the hot hydrogen chloride gas more fully contact with the surrounding environment, accelerating heat dissipation. At the same time, the space after the inner and outer synthesis chambers are merged is larger. The larger space also provides more paths for heat diffusion, promoting the cooling reaction of the hydrogen chloride gas. 3. This four-in-one graphite synthesis furnace with a double-layer movable shell uses an external drive mechanism installed on the outer furnace surface, combined with the rotation of the inner and outer rings, to centrifugally separate the cooled hydrogen chloride gas. After separation and purification, the inner and outer rings rotate and fit together, returning to their original state. At this time, the relatively pure hydrogen chloride gas is isolated by the inner and outer rings within the inner synthesis chamber, thereby collecting the pure hydrogen chloride gas and achieving the effect of separating and purifying the hydrogen chloride gas. 4. In this four-in-one graphite synthesis furnace with a double-layer movable shell, the coordinated rotation of the inner and outer rings and the outer furnace body can accurately divide the interior of the outer furnace body, so that the synthesis, cooling, separation and purification required in the hydrogen chloride gas synthesis process can be completed in the same area, reducing the time and energy consumed in transferring gas between different equipment, reducing the equipment footprint, and improving the safety and stability of the synthesis process. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the internal structure of the outer furnace body of the present invention; Figure 3 This is a schematic diagram of the installation position of the double-layer inner shell mechanism of the present invention; Figure 4 This is a schematic diagram of the internal structure of the synthesis furnace body during the hydrogen chloride gas synthesis process of the present invention; Figure 5 This is a schematic diagram of the internal structure of the synthesis furnace body during the hydrogen chloride gas cooling process of the present invention; Figure 6 Schematic diagram of the internal structure of the synthesis furnace body during the hydrogen chloride gas separation and purification process of the present invention; Figure 7 This is a schematic diagram of the chlorine and hydrogen feeding structure of the present invention; Figure 8 For the present invention Figure 7 Schematic diagram of the structure at A; Figure 9 It is a schematic structural diagram of the internal driving mechanism of the present invention.

[0014] The meaning of each number in the figure is: 1. Synthesis furnace body; 11. Feeding parts; 12. External furnace body; 13. Furnace bottom parts; 14. Discharge pump; 15. Discharge pipe; 16. Middle support rod; 17. Feeding pipe; 171. Feeding chamber; 10. Inner synthesis chamber; 101. External synthesis chamber; 2. Double-layer inner shell structure; 21. Bottom rail; 22. Top rail; 23. Inner ring; 24. Outer ring; 3. Inner drive mechanism; 31. Support tube; 32. Multi-axis drive motor; 33. Outer sleeve; 34. Inner sleeve; 35. Extension rod; 36. Slide hole; 4. External drive mechanism; 41. Support circular plate; 42. Driving gear; 43. Driven gear ring; 44. Side exhaust pipe; 45. Single-axis drive motor; 5. Support ribs; 51. Rail grooves; 6. Visual window; 61. Corresponding tube; 7. Groove bag. DETAILED DESCRIPTION

[0015] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0016] Example 1, please refer to Figure 1 and Figure 2 As shown, the present embodiment aims to provide a four-in-one graphite synthesis furnace with a double-layer movable shell, including a synthesis furnace body 1, the synthesis furnace body 1 including a feed piece 11, an outer furnace body 12, a furnace bottom piece 13 and a middle support rod 16, the outer furnace body 12 is rotatably arranged between the feed piece 11 and the furnace bottom piece 13, the middle support rod 16 is located between the feed piece 11 and the furnace bottom piece 13, and is used to support the feed piece 11, the top of the feed piece 11 is provided with two feed pipes 17 for conveying chlorine and hydrogen respectively, and the interior of the feed piece 11 is provided with two feed cavities 171, one end of the two feed cavities 171 is connected to the feed pipe 17, and the other end thereof is communicated with the interior of the outer furnace body 12; The outer furnace body 12 is provided with a double-layer inner shell mechanism 2 for internal movement. The double-layer inner shell mechanism 2 divides the interior of the outer furnace body 12 into an inner synthesis chamber 10 and an outer synthesis chamber 101. The inner diameter of the inner synthesis chamber 10 is smaller than that of the outer synthesis chamber 101, which can promote the merging of hydrogen and chlorine. The top of the double-layer inner shell mechanism 2 is connected to the inner driving mechanism 3. Driven by the inner driving mechanism 3, the double-layer inner shell mechanism 2 can rotate inside the outer furnace body 12, connecting the inner synthesis chamber 10 and the outer synthesis chamber 101, and promoting the cooling of the hydrogen chloride gas. The outer wall of the outer furnace body 12 is installed with an external driving mechanism 4. Driven by the external driving mechanism 4, the outer furnace body 12 can drive the hydrogen chloride gas inside it for centrifugal separation. At the same time, combined with the double-layer inner shell mechanism 2, it can isolate the purified pure hydrogen chloride gas.

[0017] After chlorine and hydrogen enter the interior of the outer furnace body 12, they need to be merged first. The double-layer inner shell mechanism 2 includes a top rail 22 installed at the opening at the upper end of the outer furnace body 12. The bottom of the inner cavity of the outer furnace body 12 is fixedly connected with a bottom rail 21. The bottom rail 21 and the top rail 22 are installed in alignment. An inner movable shell is movably connected between the top rail 22 and the bottom rail 21. The inner movable shell is composed of an inner ring body 23 and an outer ring body 24. The outer wall of the inner ring body 23 is in a fit state with the inner wall of the outer ring body 24, and the end of the inner ring body 23 close to the top rail 22 is lower than the outer ring body 24.

[0018] like Figure 3 and Figure 9As shown, the top and bottom of the inner cavity of the outer furnace body 12 are connected to the top rail 22 and the bottom rail 21 respectively, and the inner ring body 23 and the outer ring body 24 are movably connected between the top rail 22 and the bottom rail 21. Figure 4 It can be seen that when the inner ring body 23 and the outer ring body 24 are symmetrical and the two ends are in contact, the middle part of the outer furnace body 12 can be divided into an inner synthesis chamber 10, and the end of the feeding cavity 171 away from the feeding pipe 17 is connected to the inner synthesis chamber 10. Figure 7 As shown, when chlorine and hydrogen enter the interior of the synthesis furnace body 1, they can directly enter the interior of the inner synthesis chamber 10 (after the chlorine and hydrogen are fed, the feeding cavity 171 is blocked and closed by a plug bag, and the plug bag is made of corrosion-resistant material, so that chlorine and hydrogen can accurately enter the interior of the inner synthesis chamber 10). Since the inner diameter of the inner synthesis chamber 10 is relatively small, the distance between molecules is closer in this small space, which greatly increases the probability of molecular collision. Hydrogen and chlorine molecules are more likely to meet and collide in the inner synthesis chamber 10, which improves the reaction efficiency of hydrogen and chlorine, and can synthesize more hydrogen chloride gas in a shorter time, thereby improving production efficiency. Among them, the inner walls of the inner ring body 23, the outer ring body 24 and the outer furnace body 12 are all made of graphite material, which can effectively resist the erosion of hydrogen chloride gas and extend the service life of the equipment. At the same time, the graphite material is relatively light and has high strength. The high strength can withstand certain pressure changes, ensuring the stability and safety of the equipment during operation.

[0019] Example 2 is different from the above-mentioned Example 1. After the hydrogen chloride gas is merged, it is necessary to use the internal driving mechanism 3 to change the position of the inner movable shell to achieve the effect of cooling the hydrogen chloride gas. The internal driving mechanism 3 includes a support tube 31 fixedly connected to the top of the feed part 11. The internal rotation connection of the support tube 31 is a movable shaft body. The movable shaft body is formed by the inner sleeve shaft 34 and the outer sleeve shaft 33 being sleeved. The end of the inner sleeve shaft 34 close to the outer furnace body 12 extends out of the surface of the outer sleeve shaft 33. The inner sleeve shaft 34 and the outer sleeve shaft 33 close to the outer furnace body 12 are both fixedly connected with an extension support rod 35, and the two extension support rods 35 are symmetrically arranged. Two sliding holes 36 are provided on the end surface of the top rail 22 close to the inner synthesis bin 10. The other ends of the two extension support rods 35 are respectively connected to the inner ring body 23 and the outer ring body 24 through the sliding holes 36. The top end of the movable shaft body is coaxially connected to the multi-axis drive motor 32, and the multi-axis drive motor 32 is fixedly mounted on the top of the support tube 31.

[0020] The two sliding holes 36 are both opened at 350 degrees. The inner walls of the two sliding holes 36 are both installed with groove bags 7, which are used to seal the interior of the sliding holes 36.

[0021] See Figure 3 and Figure 9As shown, the upper ends of the inner ring body 23 and the outer ring body 24 are connected to the bottom end of the movable shaft body through an extension rod 35. The movable shaft body is formed by the outer sleeve shaft 33 and the inner sleeve shaft 34 being sleeved together, and the end of the movable shaft body away from the extension rod 35 is coaxially connected to the multi-axis drive motor 32. The multi-axis drive motor 32 can accurately control the outer sleeve shaft 33 and the inner sleeve shaft 34 respectively, so that the positions of the inner ring body 23 and the outer ring body 24 can be flexibly adjusted respectively. like Figure 5 As shown, when the hydrogen chloride gas inside the inner synthesis chamber 10 needs to be cooled after being merged, the movable shaft body is controlled by the multi-axis drive motor 32, so that the inner ring body 23 and the outer ring body 24 rotate in opposite directions inside the outer furnace body 12, thereby allowing the inner synthesis chamber 10 and the outer synthesis chamber 101 to be fused. In this process, the rotation of the inner ring body 23 and the outer ring body 24 can generate airflow, which can promote the flow of gas and heat exchange, so that the hot hydrogen chloride gas is in more complete contact with the surrounding environment, greatly accelerating the heat dissipation rate. At the same time, the space becomes larger after the inner synthesis chamber 10 and the outer synthesis chamber 101 are merged. The larger space provides more paths for heat diffusion, further promoting the cooling reaction of the hydrogen chloride gas.

[0022] It should be noted that: Figure 5 The solid arrows in the figure indicate the rotation direction of the inner ring body 23 and the outer ring body 24; the dotted arrows indicate the flow direction of the hydrogen chloride gas when the inner synthesis chamber 10 and the outer synthesis chamber 101 are fused.

[0023] Since both the inner ring body 23 and the outer ring body 24 are made of graphite, and graphite has high strength, this high strength can withstand a certain pressure, so that when chlorine and hydrogen are fed in, the input amount can be relatively increased to a certain extent (it needs to be within the tolerance range of the inner ring body 23 and the outer ring body 24). In this way, when the inner synthesis chamber 10 and the outer synthesis chamber 101 are subsequently merged, the concentration of the hydrogen chloride gas will not be affected during the gas merging process.

[0024] Combine Figure 8It can be seen that during the rotation of the inner ring body 23 and the outer ring body 24, the two extended support rods 35 need to rotate in the sliding hole 36 opened on the surface of the top rail 22. In order to ensure the internal sealing of the inner synthesis chamber 10, a groove bag 7 (made of elastic rubber) will be installed inside the sliding hole 36. In the area where the extended support rods 35 do not pass, the interior of the sliding hole 36 can be filled with the groove bag 7, thereby improving the sealing of the inner synthesis chamber 10 and ensuring that the hydrogen chloride gas will not leak due to the existence of the sliding hole 36 during the synthesis process, thereby ensuring the efficient progress of the synthesis reaction and the stability of the product quality. Among them, in order to make the rotation of the inner ring body 23 and the outer ring body 24 controllable, the sliding hole 36 is opened at 350°. On the one hand, the sliding hole 36 is opened at 350°, which can accurately control the rotation angle and range of the inner ring body 23 and the outer ring body 24, so that they will not rotate without limit. On the other hand, the sliding hole 36 is opened at 350°, so that there is a connection in the middle of the top rail 22, which will not affect the installation of the top rail 22.

[0025] The working principle of the above-mentioned multi-axis drive motor 32 is well known to people in this technical field. The multi-axis drive motor 32 here needs to control the inner sleeve shaft 34 and the outer sleeve shaft 33 separately. Therefore, the multi-axis drive motor 32 here has two output shafts. The motor can provide power to different output channels according to preset programs and instructions. By precisely controlling parameters such as the motor's speed, direction and torque, the inner sleeve shaft 34 and the outer sleeve shaft 33 can rotate at different speeds and directions.

[0026] Example 3 is different from Example 1 and Example 2 above. After the hydrogen chloride gas is merged, the outer furnace body 12 can be driven to rotate by the external drive mechanism 4, so that the hydrogen chloride gas is separated and purified. The external drive mechanism 4 includes a support circular plate 41 fixedly connected to the outer wall of the furnace bottom member 13. The lower end of the outer wall of the outer furnace body 12 is fixedly connected to a driven gear ring 43. The surface of the driven gear ring 43 is meshed with a driving gear 42. The driving gear 42 is coaxially connected to a single-axis drive motor 45. The single-axis drive motor 45 is fixedly connected to the bottom of the support circular plate 41. The contact ends of the outer furnace body 12, the feed member 11 and the furnace bottom member 13 are all installed with sealing gaskets. The lower end surface of the outer furnace body 12 is fixedly connected to a side discharge pipe 44. The side discharge pipe 44 is used to discharge hydrogen chloride gas with lower purity.

[0027] See Figure 3 Combined with Figure 6As shown, after the hydrogen chloride gas is cooled, the single-axis drive motor 45 is started. At this time, the output shaft of the single-axis drive motor 45 drives the driving gear 42 fixedly connected thereto to rotate. Since the driving gear 42 is meshed with the driven gear ring 43, and the driven gear ring 43 is fixedly connected to the outer wall of the outer furnace body 12, when the driving gear 42 rotates, the outer furnace body 12 rotates accordingly. Through the rotation of the outer furnace body 12, a centrifugal effect is generated inside the outer furnace body 12, so that the gas with more impurities approaches the inner wall of the outer furnace body 12, while the relatively pure hydrogen chloride gas is located in the middle of the inner cavity of the outer furnace body 12. At the same time, the inner ring body 23 and the outer ring body 24 rotate in opposite directions inside the furnace body, which further enhances the centrifugal effect on the hydrogen chloride gas. After centrifugation is completed, the inner ring body 23 and the outer ring body 24 return to a symmetrical state with both ends in contact, which can effectively isolate the relatively pure hydrogen chloride gas in the center of the inner cavity of the outer furnace body 12, providing a high-quality product guarantee for the subsequent collection and use of the hydrogen chloride gas.

[0028] The side discharge pipe 44 installed on the lower end surface of the outer furnace body 12 can discharge the relatively low-purity hydrogen chloride gas isolated in the outer synthesis chamber 101, which helps to reduce impurity accumulation, damage to equipment and maintenance costs.

[0029] The reason why the counter-rotation of the inner ring body 23 and the outer ring body 24 inside the outer furnace body 12 can enhance the centrifugal effect on the hydrogen chloride gas is that when the inner ring body 23 and the outer ring body 24 rotate in opposite directions, more complex airflow motion is generated inside the outer furnace body 12. This complex airflow motion can further enhance the turbulence of the gas, allowing gas molecules of different densities to separate more quickly under the action of centrifugal force. For hydrogen chloride gas, the complex airflow and stronger centrifugal force generated by the counter-rotation will promote their more effective separation, thereby improving the purity of the hydrogen chloride gas and the centrifugal effect. Even if the rotation angle is limited, the counter-rotation can still generate complex airflow disturbances, which will make the movement of gas molecules more chaotic, increase the relative motion between gas molecules of different densities, and thus enhance the separation effect of centrifugal force on them.

[0030] Considering the rotational stability of the inner ring body 23 and the outer ring body 24, one end of the inner ring body 23 and the outer ring body 24 close to the inner wall of the bottom rail 21 is fixedly connected with a support ridge 5, and the inner walls on both sides of the bottom rail 21 are provided with a rail groove 51 that fits the surface of the support ridge 5.

[0031] The improvement lies in that: a support ridge 5 is fixedly connected to one end of the inner ring body 23 and the outer ring body 24 close to the inner wall of the bottom rail 21. At the same time, a rail groove 51 is opened on the inner walls of both sides of the bottom rail 21. When the inner ring body 23 and the outer ring body 24 rotate, the support ridge 5 slides in the rail groove 51. The rail groove 51 provides stable support and guidance for the support ridge 5, thereby improving the stability of the inner ring body 23 and the outer ring body 24 during the rotation process.

[0032] In order to further determine the rotation of the inner ring body 23 and the outer ring body 24, a visual window 6 is opened on the surface of the support tube 31, and corresponding tubes 61 are installed at the middle ends of the outer sleeve shaft 33 and the inner sleeve shaft 34 near the visual window 6. The two corresponding tubes 61 are respectively identical in shape to the outer ring body 24 and the inner ring body 23.

[0033] The improvement lies in that: through the visual window 6, the operator can directly observe the position and status of the corresponding tube 61. Since the corresponding tube 61 is identical in shape to the inner ring body 23 and the outer ring body 24, by observing the rotation of the corresponding tube 61, the rotation angle, direction and speed of the inner ring body 23 and the outer ring body 24 can be accurately understood. This helps the operator to grasp the operating status of the equipment in a timely manner so as to make adjustments and controls when necessary.

[0034] After the hydrogen chloride gas is merged, it needs to be discharged. The merged hydrogen chloride gas is heavier than air. Therefore, in order to facilitate the discharge of the merged hydrogen chloride gas, a discharge pipe 15 is installed inside the furnace bottom part 13. One end of the discharge pipe 15 is inserted into the interior of the outer furnace body 12, and a one-way valve is installed inside the end of the discharge pipe 15 close to the outer furnace body 12. The other side of the discharge pipe 15 is connected to a discharge pump 14. The discharge pump 14, the discharge pipe 15 and the one-way valve are all made of corrosion-resistant materials.

[0035] See Figure 1 and Figure 2 As shown, a discharge pipe 15 is installed inside the furnace bottom member 13. After the hydrogen chloride gas is merged, the one-way valve and the discharge pump 14 are opened to extract the merged hydrogen chloride gas in the outer furnace body 12 from the bottom. Since hydrogen chloride gas is heavier than air, discharging it from the bottom is in line with its natural tendency to sink. With the help of gravity, the discharge process can be smoother and more efficient, the discharge resistance can be reduced, and the discharge speed can be increased. At the same time, the discharge pump 14 is used to drive the hydrogen chloride gas to be discharged from the bottom, making the gas flow inside the equipment more orderly, reducing the problem of local pressure unevenness caused by turbulent gas flow, and reducing the operation risk of the equipment.

[0036] The one-way valve is used to close the discharge pipe 15 when the synthesis furnace body 1 is in operation, thereby reducing leakage of hydrogen chloride gas during synthesis. The operating principle of the one-way valve is well known to those skilled in the art. When gas is required to flow in a specific direction, the control circuit sends an opening signal to the electric actuator. After receiving the signal, the electric actuator moves the valve core to the open position via a mechanical transmission device, allowing gas to flow smoothly from the inlet to the outlet. At this time, a channel is formed between the valve core and the valve seat, allowing gas to pass freely. The discharge pump 14 adopts a vacuum pump structure. When the volume of the space on the air inlet side of the impeller gradually increases, a certain vacuum degree is formed, and hydrogen chloride gas is sucked into the pump under the action of external pressure. As the impeller continues to rotate, the gas and working fluid are carried to the exhaust port side of the impeller for discharge.

[0037] Among them, the discharge pump 14, the discharge pipe 15 and the one-way valve are all made of graphite. Graphite has good corrosion resistance and is not easily corroded by hydrogen chloride. Graphite can also effectively dissipate heat, reducing the risk of equipment damage due to excessive temperature.

[0038] In summary, the working principle of this solution is as follows: first, the end of the feeding chamber 171 away from the feeding pipe 17 is connected to the inner synthesis chamber 10. When the chlorine and hydrogen enter the interior of the synthesis furnace body 1, they can directly enter the interior of the inner synthesis chamber 10. Since the inner diameter of the inner synthesis chamber 10 is relatively small, the distance between molecules is closer in this small space, which greatly increases the probability of molecular collision. Hydrogen and chlorine molecules are more likely to meet and collide in the inner synthesis chamber 10, thereby improving the merging efficiency of hydrogen and chlorine. When the hydrogen chloride gas inside the inner synthesis chamber 10 needs to be cooled after being merged, the multi-axis drive motor 32 controls the movable shaft body to make the inner ring body 23 and the outer ring body 24 rotate in opposite directions inside the outer furnace body 12, thereby allowing the inner synthesis chamber 10 and the outer synthesis chamber 101 to merge. During this process, the rotation of the inner ring body 23 and the outer ring body 24 can generate airflow, which can promote the flow of gas and heat exchange, so that the hot hydrogen chloride gas is in more complete contact with the surrounding environment, greatly accelerating the heat dissipation rate. At the same time, the space becomes larger after the inner synthesis chamber 10 and the outer synthesis chamber 101 are merged. The larger space provides more paths for heat diffusion, further promoting the cooling reaction of the hydrogen chloride gas. After the hydrogen chloride gas is cooled, the single-axis drive motor 45 is started. At this time, the output shaft of the single-axis drive motor 45 drives the driving gear 42 fixedly connected thereto to rotate. Since the driving gear 42 is meshed with the driven gear ring 43, and the driven gear ring 43 is fixedly connected to the outer wall of the outer furnace body 12, when the driving gear 42 rotates, the outer furnace body 12 rotates accordingly. The rotation of the outer furnace body 12 produces a centrifugal effect inside the outer furnace body 12, causing the gas with more impurities to approach the inner wall of the outer furnace body 12, while the relatively pure hydrogen chloride gas is located in the middle of the inner cavity of the outer furnace body 12. At the same time, the inner ring 43 is rotated. The inner ring 23 and the outer ring 24 rotate in opposite directions inside the furnace body, which further enhances the centrifugal effect on the hydrogen chloride gas. After centrifugation, the inner ring 23 and the outer ring 24 return to a symmetrical state with both ends in contact, effectively isolating the relatively pure hydrogen chloride gas in the center of the inner cavity of the outer furnace body 12, ensuring high-quality product for subsequent collection and use of the hydrogen chloride gas. A discharge pipe 15 is installed inside the furnace bottom member 13. After the hydrogen chloride gas is merged, the one-way valve and the discharge pump 14 are opened to extract the merged hydrogen chloride gas from the bottom of the outer furnace body 12. The coordinated rotation of the inner and outer ring bodies 23, 24, and the outer furnace body 12 allows for a more precise division of the interior of the outer furnace body 12. This coordinated action allows the synthesis, cooling, and separation and purification steps required for the hydrogen chloride gas synthesis process to be completed within the same area. This reduces the time and energy consumed in transferring gas between different devices, thereby improving production efficiency. Furthermore, it reduces the footprint of the equipment, making the overall layout more compact. Furthermore, this coordinated rotation improves the safety and stability of the synthesis process, ensuring that the synthesis, cooling, and separation and purification of hydrogen chloride gas can be carried out efficiently and reliably.

[0039] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A four-in-one graphite synthesis furnace with a double-layer movable shell, comprising a synthesis furnace body (1), wherein the synthesis furnace body (1) comprises an inlet member (11), an outer furnace body (12), a furnace bottom member (13) and a middle support rod (16), wherein the outer furnace body (12) is rotatably arranged between the inlet member (11) and the furnace bottom member (13), and the middle support rod (16) is located between the inlet member (11) and the furnace bottom member (13) for supporting the inlet member (11), characterized in that: Two feed pipes (17) for conveying chlorine and hydrogen respectively are provided on the top of the feed member (11), and two feed chambers (171) are provided inside the feed member (11), one end of the two feed chambers (171) is connected to the feed pipe (17), and the other end thereof is communicated with the interior of the outer furnace body (12); The outer furnace body (12) is provided with a double-layer inner shell mechanism (2) inside the outer furnace body (12), and the double-layer inner shell mechanism (2) divides the interior of the outer furnace body (12) into an inner synthesis chamber (10) and an outer synthesis chamber (101). The inner diameter of the inner synthesis chamber (10) is smaller than that of the outer synthesis chamber (101), and can promote the merging of hydrogen and chlorine; The top end of the double-layer inner shell mechanism (2) is connected to an inner driving mechanism (3). Driven by the inner driving mechanism (3), the double-layer inner shell mechanism (2) can rotate inside the outer furnace body (12), connecting the inner synthesis chamber (10) and the outer synthesis chamber (101), thereby promoting the cooling of the hydrogen chloride gas. An external drive mechanism (4) is installed on the outer wall of the outer furnace body (12). Driven by the external drive mechanism (4), the outer furnace body (12) can drive the hydrogen chloride gas inside thereof to undergo centrifugal separation. Simultaneously, in combination with the double-layer inner shell mechanism (2), the purified pure hydrogen chloride gas can be isolated.

2. The four-in-one graphite synthesis furnace with a double-layer movable shell according to claim 1, characterized in that: The double-layer inner shell mechanism (2) comprises a top rail (22) mounted at the upper opening of the outer furnace body (12); a bottom rail (21) is fixedly connected to the bottom of the inner cavity of the outer furnace body (12); the bottom rail (21) and the top rail (22) are aligned and mounted; an inner movable shell is movably connected between the top rail (22) and the bottom rail (21); the inner movable shell is composed of an inner ring body (23) and an outer ring body (24); the outer wall of the inner ring body (23) is in a fitted state with the inner wall of the outer ring body (24); and an end of the inner ring body (23) close to the top rail (22) is lower than the outer ring body (24).

3. The four-in-one graphite synthesis furnace with a double-layer movable shell according to claim 2, characterized in that: The inner driving mechanism (3) comprises a support tube (31) fixedly connected to the top of the feeding member (11), the interior of the support tube (31) is rotatably connected to a movable shaft body, the movable shaft body being formed by sleeve-jointing an inner sleeve shaft (34) and an outer sleeve shaft (33), the end of the inner sleeve shaft (34) close to the outer furnace body (12) extending out of the surface of the outer sleeve shaft (33), the inner sleeve shaft (34) and the outer sleeve shaft (33) close to the outer furnace body (12) are both fixedly connected to an extension rod (35), and the two extension rods (35) are symmetrically arranged, the surface of the end of the top rail (22) close to the inner synthesis bin (10) is provided with two sliding holes (36), the other ends of the two extension rods (35) respectively pass through the sliding holes (36) and are connected to the inner ring body (23) and the outer ring body (24), the top end of the movable shaft body is coaxially connected to the multi-axis drive motor (32), and the multi-axis drive motor (32) is fixedly mounted on the top of the support tube (31).

4. The four-in-one graphite synthesis furnace with a double-layer movable shell according to claim 3, characterized in that: The two sliding holes (36) are both opened at 350 degrees, and the inner walls of the two sliding holes (36) are both installed with groove bags (7), and the groove bags (7) are used to seal the interior of the sliding holes (36).

5. The four-in-one graphite synthesis furnace with a double-layer movable shell according to claim 1, characterized in that: The external drive mechanism (4) includes a supporting circular plate (41) fixedly connected to the outer wall of the furnace bottom member (13); a driven gear ring (43) is fixedly connected to the lower end of the outer wall of the outer furnace body (12); a driving gear (42) is meshedly connected to the surface of the driven gear ring (43); the driving gear (42) is coaxially connected to a single-axis drive motor (45); the single-axis drive motor (45) is fixedly connected to the bottom of the supporting circular plate (41); sealing gaskets are installed at the contact ends of the outer furnace body (12) with the feed member (11) and the furnace bottom member (13); a side discharge pipe (44) is fixedly connected to the lower end surface of the outer furnace body (12); the side discharge pipe (44) is used to discharge hydrogen chloride gas with low purity.

6. The four-in-one graphite synthesis furnace with a double-layer movable shell according to claim 2, characterized in that: The inner ring body (23) and the outer ring body (24) are fixedly connected to a supporting convex strip (5) at one end close to the inner wall of the bottom rail (21), and the inner walls on both sides of the bottom rail (21) are provided with a rail groove (51) that fits the surface of the supporting convex strip (5).

7. The four-in-one graphite synthesis furnace with a double-layer movable shell according to claim 3, characterized in that: A visual window (6) is provided on the surface of the support tube (31), and corresponding tubes (61) are installed at the middle ends of the outer sleeve shaft (33) and the inner sleeve shaft (34) near the visual window (6). The two corresponding tubes (61) are respectively identical in shape to the outer ring body (24) and the inner ring body (23).

8. The four-in-one graphite synthesis furnace with a double-layer movable shell according to claim 1, characterized in that: A discharge pipe (15) is installed inside the furnace bottom member (13), one end of the discharge pipe (15) is plugged into the interior of the outer furnace body (12), and a one-way valve is installed inside the end of the discharge pipe (15) close to the outer furnace body (12), and the other side of the discharge pipe (15) is connected to a discharge pump (14), and the discharge pump (14), the discharge pipe (15) and the one-way valve are all made of corrosion-resistant materials.

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