A calcining furnace for producing molecular sieves

Abstract

This utility model relates to the field of molecular sieve production, and in particular to a calcining furnace for producing molecular sieves. It includes a calcining mechanism, a tilting mechanism on the lower side of the calcining mechanism, a driving mechanism at the center of the bottom of the calcining mechanism, and a material-turning mechanism located inside the calcining mechanism. A conical rotating disk drives two spiral lifting plates to rotate inside the calcining cylinder. The rotation of the two spiral lifting plates gradually conveys the molecular sieve raw material upwards inside the calcining cylinder. During the entire material conveying process, the material can quickly and evenly absorb heat from the calcining cylinder. Furthermore, the heating inner ring concentrates most of the heat from the calcining cylinder between the two spiral lifting plates, increasing the overall heating rate of the molecular sieve raw material.

Description

Technical Field

[0001] This utility model relates to the field of molecular sieve production, and in particular to a calcining furnace for producing molecular sieves. Background Technology

[0002] According to the patent document with publication number CN219454624U, two arc plates are connected by a hinge, and the two arc plates are used to drive the opening and closing of two calcining furnace cylinders. At the same time, a support rod passes through the two support plates, and two nuts are tightened on the outside of the support rod to fix the two arc plates, so as to seal the molecular sieve inside the two calcining furnace cylinders. Then, the two calcining furnace cylinders are rotated by a rotating component to calcinate the molecular sieve inside the two calcining furnace cylinders.

[0003] The patent document states that after calcining the molecular sieve, the nut needs to be unscrewed from the support rod, and then either calcination furnace cylinder needs to be flipped open to pour out the molecular sieve particles. However, due to the high temperature of the calcination furnace, the disassembly and installation of the two calcination furnace cylinders poses a significant safety hazard, as it is easy to burn the operators. Furthermore, since the two calcination furnace cylinders are locked together in a closed state, the internal temperature and pressure of the two locked calcination furnace cylinders will continuously increase, potentially leading to an explosion risk. Additionally, during the flipping process of the two calcination furnace cylinders, both furnace cylinders need to be fully heated before the molecular sieve raw material can be heated, resulting in a slow overall heating rate and potential uneven heating of the molecular sieve raw material in different locations. Moreover, after the two calcination furnace cylinders are opened and the molecular sieve raw material is poured out, the entire calcination furnace cylinder will cool down rapidly, requiring reheating before the next calcination, which is quite troublesome. Utility Model Content

[0004] The purpose of this invention is to provide a calcining furnace for producing molecular sieves in order to solve the above-mentioned problems.

[0005] This utility model achieves the above objectives through the following technical solutions:

[0006] A calcining furnace for producing molecular sieves includes a calcining mechanism, a tilting mechanism on the lower side of the calcining mechanism, a driving mechanism at the center of the bottom of the calcining mechanism, and a material turning mechanism located inside the calcining mechanism.

[0007] The material turning mechanism includes a conical rotating disk, a heating inner ring above the conical rotating disk, a concave guide plate fixed at the top of the heating inner ring, a conical cover fixed below the concave guide plate, and the conical cover located inside the heating inner ring. Two spiral lifting plates are sleeved on the outside of the heating inner ring, and both spiral lifting plates are fixedly connected to the heating inner ring.

[0008] Preferably, two side plates are fixed to the outside of the conical rotating disk, and the lower ends of the two spiral lifting plates are fixedly connected to the two side plates respectively. Two arc-shaped plates are fixed to the outside of the concave guide disk, and the upper ends of the two spiral lifting plates are fixedly connected to the two arc-shaped plates respectively.

[0009] Preferably, the roasting mechanism includes a protective cover, a gas pipe is provided below the protective cover, a coil for supplying gas into the protective cover is fixed at the front end of the gas pipe, and multiple flame gun heads extending into the protective cover are fixed on the coil. A roasting cylinder is fixed inside the protective cover and is located above the multiple flame gun heads.

[0010] Preferably, the concave guide plate and the conical cover are both provided with corresponding leakage holes at their center positions, and the bottom of the conical rotating plate is fixed with a rotating shaft that passes through the roasting cylinder and the protective cover.

[0011] Preferably, the drive mechanism includes a fixed frame, which is fixedly connected to the bottom of the protective cover. A drive motor is fixed to the bottom of the fixed frame. A driven gear is fixed to the rotating part of the drive motor. A driving gear meshes with the front side of the driven gear. The driving gear is fixedly connected to the rotating shaft.

[0012] Preferably, the tilting mechanism includes a base plate, with two symmetrical supports fixed on the top of the base plate. A worm gear is rotatably connected to the side of the supports closer to the protective cover, and a discharge motor is fixed to the side of the supports away from the protective cover. A worm wheel meshes on the upper side of the worm gear, and bevel gears are fixed to both the input end of the worm gear and the output end of the discharge motor, with the two bevel gears meshing with each other.

[0013] Preferably, the protective cover has support shafts on both sides, and the support shafts are rotatably connected to the corresponding brackets, and the worm gear is fixedly connected to the support shafts.

[0014] The advantages compared to existing technologies are as follows:

[0015] The conical rotating disk drives two spiral lifting plates to rotate inside the calcination cylinder. The rotation of the two spiral lifting plates gradually transports the molecular sieve raw material inside the calcination cylinder upwards. During the entire process of transporting the molecular sieve raw material, the heat of the calcination cylinder can be absorbed quickly and evenly. Furthermore, the heating inner ring can concentrate most of the heat of the calcination cylinder between the two spiral lifting plates, thereby increasing the heating rate of the entire molecular sieve raw material. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is an exploded view of the roasting mechanism and the turning mechanism of a roasting furnace for producing molecular sieves as described in this utility model;

[0018] Figure 2 This is a schematic diagram of the tilting mechanism of a calcining furnace for producing molecular sieves as described in this utility model;

[0019] Figure 3 This is a partial cross-sectional view of the roasting mechanism of a roasting furnace for producing molecular sieves as described in this utility model;

[0020] Figure 4 This is a schematic diagram of the gas pipe structure of a calcining furnace for producing molecular sieves as described in this utility model;

[0021] Figure 5 This is a schematic diagram of the structure of two spiral lifting plates of a calcining furnace for producing molecular sieves as described in this utility model;

[0022] Figure 6 This is a schematic diagram of the concave guide plate and two spiral lifting plates of a calcining furnace for producing molecular sieves according to the present invention.

[0023] Figure 7 This is a schematic diagram of the concave guide plate, spiral lifting plate, and conical rotating disk structure of a calcining furnace for producing molecular sieves, as described in this utility model.

[0024] The annotations in the attached figures are explained as follows:

[0025] 1. Tilting mechanism; 2. Calcination mechanism; 3. Material turning mechanism; 4. Drive mechanism; 11. Base plate; 12. Support; 13. Discharge motor; 14. Worm gear; 15. Worm; 16. Bevel gear; 21. Protective cover; 22. Gas pipe; 23. Calcination cylinder; 31. Conical rotating disk; 32. Heating inner ring; 33. Concave guide plate; 34. Conical cover; 35. Spiral lifting plate; 41. Drive motor; 42. Driving gear; 43. Driven gear; 44. Fixing frame. Detailed Implementation

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] The present invention will be further described below with reference to the accompanying drawings:

[0028] like Figures 1-7 As shown, a calcining furnace for producing molecular sieves includes a calcining mechanism 2, a flipping mechanism 1 on the lower side of the calcining mechanism 2, a driving mechanism 4 at the center of the bottom of the calcining mechanism 2, and a material turning mechanism 3 located inside the calcining mechanism 2.

[0029] In this embodiment: the roasting mechanism 2 includes a protective cover 21, a gas pipe 22 is provided below the protective cover 21, a coil for supplying gas into the protective cover 21 is fixed at the front end of the gas pipe 22, and multiple flame gun heads extending into the protective cover 21 are fixed on the coil. A roasting cylinder 23 is fixed inside the protective cover 21, and the roasting cylinder 23 is located above the multiple flame gun heads. The gas pipe 22 at the bottom of the protective cover 21 is used to supply gas into the coil, and the flame gun heads on the coil are used to heat the roasting cylinder 23.

[0030] In this embodiment: the material turning mechanism 3 includes a conical rotating disk 31, a heating inner ring 32 is provided above the conical rotating disk 31, a concave guide disk 33 is fixed at the top of the heating inner ring 32, a conical cover 34 is fixed below the concave guide disk 33 and the conical cover 34 is located inside the heating inner ring 32, two spiral lifting plates 35 are sleeved on the outside of the heating inner ring 32 and both spiral lifting plates 35 are fixedly connected to the heating inner ring 32, two side plates are fixed on the outside of the conical rotating disk 31, and the lower ends of the two spiral lifting plates 35 are respectively fixedly connected to the two side plates, and two arc-shaped plates are fixed on the outside of the concave guide disk 33. The upper ends of the two spiral lifting plates 35 are fixedly connected to two arc-shaped plates respectively. Corresponding leakage holes are opened at the center of the concave guide plate 33 and the conical cover 34. A rotating shaft passing through the calcining cylinder 23 and the protective cover 21 is fixed to the bottom of the conical rotating disk 31. The conical rotating disk 31 drives the two spiral lifting plates 35 and the heating inner ring 32 to rotate inside the calcining cylinder 23. At this time, the two side plates on the conical rotating disk 31 scoop the molecular sieve particles from the calcining cylinder 23 onto the two spiral lifting plates 35. The molecular sieve particles on the two spiral lifting plates 35 are located outside the heating inner ring 32 and... Between the inner walls of the calcining cylinder 23, as the two spiral lifting plates 35 follow the rotation of the conical rotating disk 31, the molecular sieve particles are continuously conveyed along the inner wall of the calcining cylinder 23 to the concave guide disk 33. During this process, the calcining cylinder 23 is heated by the flame gun head on the gas pipe 22. The high temperature of the calcining cylinder 23 heats and calcines the molecular sieve particles continuously conveyed into the calcining cylinder 23. When a certain amount of molecular sieve particles accumulate on the concave guide disk 33, the protective cover 21 drives the calcining cylinder 23 to a vertical position. At this time, the molecular sieve particles accumulated on the concave guide disk 33... The particles fall through the hole into the protective cover 21 and begin the next roasting process. The water vapor generated during roasting overflows from the hole. When the roasted molecular sieve particles in the roasting cylinder 23 need to be poured out, the protective cover 21 rotates the roasting cylinder 23 180°, so that the hole on the roasting cylinder 23 faces vertically downward. The molecular sieve particles in the roasting cylinder 23 fall out through the hole through the conical cover 34, and the roasted molecular sieve particles are poured out. Then, the protective cover 21 is rotated so that the hole of the roasting cylinder 23 faces upward again, and the next batch of molecular sieve particles to be roasted is poured into the roasting cylinder 23.

[0031] In this embodiment: the drive mechanism 4 includes a fixed frame 44, which is fixedly connected to the bottom of the protective cover 21. A drive motor 41 is fixedly mounted on the bottom of the fixed frame 44. A driven gear 43 is fixedly mounted on the rotating part of the drive motor 41. A drive gear 42 meshes with the front side of the driven gear 43. The drive gear 42 is fixedly connected to the rotating shaft. The drive motor 41 drives the drive gear 42 to rotate. The meshing of the drive gear 42 and the driven gear 43 drives the rotating shaft and the conical rotating disk 31 to rotate inside the roasting mechanism 2.

[0032] In this embodiment: the flipping mechanism 1 includes a base plate 11, and two symmetrical supports 12 are fixed on the top of the base plate 11. A worm gear 15 is rotatably connected to the side of the support 12 near the protective cover 21, and a discharge motor 13 is fixed to the side of the support 12 away from the protective cover 21. A worm wheel 14 is meshed on the upper side of the worm gear 15. A bevel gear 16 is fixed to both the input end of the worm gear 15 and the output end of the discharge motor 13, and the two bevel gears 16 mesh with each other. Support shafts are provided on both sides of the protective cover 21, and the support shafts are rotatably connected to the corresponding supports 12. The worm wheel 14 is fixedly connected to the support shaft. The two supports 12 on the top of the base plate 11 are used to support the protective cover 21. Then, the rotating part of the discharge motor 13 drives the worm gear 15 to rotate through the bevel gear 16. The rotation of the worm gear 15 drives the worm wheel 14 to flip the protective cover 21 around the support shaft at a certain angle.

[0033] Working principle: In operation, gas is first supplied to the coil through the gas pipe 22 at the bottom of the protective cover 21. The roasting cylinder 23 is then heated by the flame gun on the coil. Subsequently, the molecular sieve raw material is poured into the roasting cylinder 23, where it is continuously heated and roasted. Simultaneously, the discharge motor 13 drives the worm gear 15 to rotate via two bevel gears 16. The rotation of the worm gear 15 drives the worm wheel 14 to rotate, which in turn rotates the protective cover 21 and the roasting cylinder 23 to rotate. The angle is adjusted, causing the calcining cylinder 23 and the protective cover 21 to tilt forward. Simultaneously, the rotating part of the drive motor 41 drives the drive gear 42 to rotate. The meshing of the drive gear 42 and the driven gear 43 drives the rotating shaft and the conical rotating disk 31 to rotate inside the calcining cylinder 23. The conical rotating disk 31 then drives the two spiral lifting plates 35 and the heating inner ring 32 to rotate inside the calcining cylinder 23. Subsequently, the two side plates on the conical rotating disk 31 scoop the molecular sieve particles from the calcining cylinder 23 onto the two spiral lifting plates 35. At this point, the molecular sieve particles on the two spiral lifting plates 35... Located between the outer side of the heating inner ring 32 and the inner wall of the calcining cylinder 23, the two spiral lifting plates 35 follow the rotation of the conical rotating disk 31 to continuously transport the molecular sieve particles along the inner wall of the calcining cylinder 23 to the concave guide disk 33. During this process, the high-temperature calcining cylinder 23 heats and calcines the molecular sieve particles continuously transported into the calcining cylinder 23. When a certain amount of molecular sieve particles accumulate on the concave guide disk 33, the worm gear 15 reverses and drives the worm wheel 14 to keep the protective cover 21 and the calcining cylinder 23 in a vertical state. At this time, the molecular sieve particles accumulated on the concave guide disk 33 fall into the calcining cylinder through the leakage hole. Inside the protective cover 21, the worm gear 15 continues to rotate, which drives the protective cover 21 and the calcining cylinder 23 to tilt backward through the worm wheel 14. Then the conical rotating disk 31 continues to rotate, thereby driving the molecular sieve raw material in the calcining cylinder 23 to start the next calcination process. During calcination, the water vapor generated overflows from the leakage hole. At the same time, the entire molecular sieve raw material can quickly and evenly absorb the heat of the calcining cylinder 23 in the above process. Furthermore, the heating inner ring 32 can concentrate most of the heat of the calcining cylinder 23 between the two spiral lifting plates 35, thereby increasing the heating rate of the entire molecular sieve raw material.

[0034] When the calcined molecular sieve particles in the calcination cylinder 23 need to be poured out, the protective cover 21 drives the calcination cylinder 23 to rotate 180°, so that the leakage hole on the calcination cylinder 23 faces vertically downward, and the molecular sieve particles in the calcination cylinder 23 fall out from the leakage hole through the conical cover 34, thereby pouring out the calcined molecular sieve particles. Then, the protective cover 21 is rotated so that the leakage hole of the calcination cylinder 23 faces upward again, and the next batch of molecular sieve particles to be calcined is poured into the calcination cylinder 23.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A calcination furnace for producing molecular sieve, comprising a calcination mechanism (2), the lower side of the calcination mechanism (2) is provided with a turnover mechanism (1), the center position of the bottom of the calcination mechanism (2) is provided with a driving mechanism (4), characterized in that: It also includes a turning mechanism (3), which is located inside the roasting mechanism (2); The material turning mechanism (3) includes a conical rotating disk (31), a heating inner ring (32) is provided above the conical rotating disk (31), a concave guide disk (33) is fixed at the top of the heating inner ring (32), a conical cover (34) is fixed below the concave guide disk (33), and the conical cover (34) is located inside the heating inner ring (32). Two spiral lifting plates (35) are sleeved on the outside of the heating inner ring (32), and both spiral lifting plates (35) are fixedly connected to the heating inner ring (32).

2. The calcining furnace for producing molecular sieve according to claim 1, characterized in that: Two side plates are fixed to the outside of the conical rotating disk (31), and the lower ends of the two spiral lifting plates (35) are fixedly connected to the two side plates respectively. Two arc plates are fixed to the outside of the concave guide disk (33), and the upper ends of the two spiral lifting plates (35) are fixedly connected to the two arc plates respectively.

3. The calcining furnace for producing molecular sieve according to claim 1, characterized in that: The roasting mechanism (2) includes a protective cover (21), a gas pipe (22) is provided below the protective cover (21), a coil for supplying gas into the protective cover (21) is fixed at the front end of the gas pipe (22), and multiple flame gun heads extending into the protective cover (21) are fixed on the coil. A roasting cylinder (23) is fixed inside the protective cover (21), and the roasting cylinder (23) is located above the multiple flame gun heads.

4. The calcining furnace for producing molecular sieve according to claim 3, characterized in that: The concave guide plate (33) and the conical cover (34) are both provided with corresponding leakage holes at their center positions. The bottom of the conical rotating plate (31) is fixed with a rotating shaft that passes through the roasting cylinder (23) and the protective cover (21).

5. The calcining furnace for producing molecular sieve according to claim 4, characterized in that: The drive mechanism (4) includes a fixed frame (44), which is fixedly connected to the bottom of the protective cover (21). A drive motor (41) is fixedly mounted on the bottom of the fixed frame (44). A driven gear (43) is fixedly mounted on the rotating part of the drive motor (41). A drive gear (42) meshes with the front side of the driven gear (43). The drive gear (42) is fixedly connected to the rotating shaft.

6. The calcining furnace for producing molecular sieve according to claim 3, characterized in that: The flipping mechanism (1) includes a base plate (11), and two symmetrical supports (12) are fixed on the top of the base plate (11). A worm gear (15) is rotatably connected to the side of the support (12) near the protective cover (21), and a discharge motor (13) is fixed to the side of the support (12) away from the protective cover (21). A worm wheel (14) is meshed on the upper side of the worm gear (15). Both the input end of the worm gear (15) and the output end of the discharge motor (13) are fixed with bevel gears (16), and the two bevel gears (16) mesh with each other.

7. The calcining furnace for producing molecular sieve according to claim 6, characterized in that: The protective cover (21) has support shafts on both sides, and the support shafts are rotatably connected to the corresponding brackets (12). The worm gear (14) is fixedly connected to the support shafts.

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