A calcination process system for producing light-burned MgO using millimeter-sized particulate materials

Abstract

The application discloses a calcination process system for producing light-burned MgO by using millimeter-sized granular materials, and relates to the technical field of light-burned MgO production. The system comprises a combustion system, a control system and a feeding box, the feeding box is provided with a feeding line below, two groups of feeding plates are arranged in the feeding box, a feeding cylinder is arranged on one side of the feeding box, a supporting platform is arranged on one side of the feeding cylinder, an input cylinder, an intermediate cylinder and an output cylinder are sequentially arranged on the supporting platform, the input cylinder, the intermediate cylinder and the output cylinder are connected with the combustion system, a discharging box is arranged on one side of the output cylinder, and a vibrating screen is arranged below the discharging box. The guide plates on the feeding plates not only realize the flow guiding and flow dividing of the light building materials, but also realize the preheating of the light building materials, so that the combustion time of the light building materials by the combustion system is shortened, and the working efficiency of the calcination is improved.

Description

A calcination process system for producing light-burned MgO using millimeter-sized particulate materials. Technical Field

[0001] This invention relates to the field of light-burned MgO production technology, specifically a calcination process system for producing light-burned MgO using millimeter-sized particulate materials. Background Technology

[0002] Light-burned magnesium oxide (MgO) is an important industrial raw material, widely used in refractory materials, building materials, chemicals, metallurgy, and other fields. The traditional production process of light-burned MgO mainly includes one-step calcination and two-step calcination methods, using magnesite, brucite, or magnesium hydroxide as raw materials, and calcining them at 800-1000℃.

[0003] The existing calcination process system has the following problems: (1) the material or raw material is not preheated, resulting in a long calcination time that cannot meet the requirements; (2) the raw material is not filtered before and after calcination, resulting in unqualified raw material entering the calcination process system. Summary of the Invention

[0004] The purpose of this invention is to provide a calcination process system for producing lightly calcined MgO using millimeter-sized particulate materials, in order to solve the problems raised in the prior art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a calcination process system for producing lightly calcined MgO using millimeter-sized particulate materials, comprising a combustion system and a control system, including a feeding box, a feeding line installed below the feeding box, two sets of feeding plates installed inside the feeding box, a feeding cylinder installed on one side of the feeding box, a support platform installed on one side of the feeding cylinder, an input cylinder, an intermediate cylinder and an output cylinder sequentially installed on the support platform, the input cylinder, the intermediate cylinder and the output cylinder are all connected to the combustion system, a discharge box installed on one side of the output cylinder, and a vibrating screen installed below the discharge box.

[0006] The two sets of feed plates are symmetrically arranged. The upper side of each set of feed plates is connected to the telescopic rod of the vibrating electric cylinder. The middle part of each set of feed plates is rotatably connected to the feed box. Two sets of winding rollers are rotatably arranged on the lower side of each set of feed plates. The vibrating electric cylinder is rotatably arranged on the feed box.

[0007] A screen is connected between the two sets of winding rollers. The two ends of the screen are wound around the two sets of winding rollers respectively. The two sets of winding rollers are electric rollers. Several guide plates are provided on the opposite side of the two sets of feed plates. A temperature control wire is provided inside the guide plate. A temperature sensor is provided inside the feed box. The temperature control wire and the temperature sensor are electrically connected to the control system.

[0008] The feeding line includes a conveyor frame, feeding rollers and a feeding belt. Multiple sets of feeding rollers are arranged sequentially on the conveyor frame. The feeding belt is sleeved on the multiple sets of feeding rollers, and the cross-section of the feeding belt is "V".

[0009] The top and bottom of the feeding box are respectively provided with a feeding port and a discharging port. The discharging port is directly opposite the feeding belt. The two sides of the top and the two sides of the bottom of the feeding box are respectively provided with a suction hood and a blowing hood. The blowing hood is connected to the outlet of a vacuum pump through a pipe. The inlet of the vacuum pump is connected to the suction hood through a pipe. The vacuum pump is set on the feeding box. The conveyor frame is provided with a scraper. The scraper is in contact with the feeding belt.

[0010] A connecting cylinder is provided on one side of the feeding cylinder, and the inlet of the feeding cylinder is located below the feeding belt. The connecting cylinder is connected to the inside of the input cylinder.

[0011] The feeding cylinder is equipped with two sets of lifting rollers, and lifting belts are sleeved on the outside of the two sets of lifting rollers. Several storage plates are set on the lifting belts.

[0012] Both the input cylinder and the output cylinder are mounted on a support platform. A rotational seal is formed between the intermediate cylinder and the input cylinder and the output cylinder. The input cylinder, the intermediate cylinder, and the output cylinder are arranged at an angle.

[0013] A drive ring is provided on the outer side of the intermediate cylinder, the drive ring contacts a drive wheel, the drive wheel is rotatably mounted on a support platform, the drive wheel is connected to the output shaft of a drive motor, and the drive motor is mounted on the support platform.

[0014] The feed box and the output cylinder are internally connected. Two sets of sliding grooves are sequentially arranged on the inner wall of the output cylinder. A first filter plate and a second filter plate are slidably installed in the two sets of sliding grooves, respectively. The two sets of sliding grooves limit the movement distance of the first filter plate and the second filter plate. A baffle plate is connected between the first filter plate and the second filter plate. The baffle plate is a telescopic structure. An electromagnetic spring is sleeved on the outside of the baffle plate. The two ends of the electromagnetic spring are electrically connected to the control system. The electromagnetic spring connects the first filter plate and the second filter plate. A return spring is connected between the side of the first filter plate away from the electromagnetic spring and the inner wall of the output cylinder.

[0015] Both the first and second filter plates have through grooves in the middle, and filter screens are installed in the through grooves. Displacement sensors are installed in both sets of sliding grooves, and the two sets of displacement sensors are used to detect the moving distance of the first and second filter plates, respectively.

[0016] A shielding membrane is connected between the top of the two sets of feed plates and the feed box. The shielding membrane is elastic and is disposed on both sides of the feed box. The shielding membrane blocks the gap between the feed plates and the feed box to prevent material from entering the gap.

[0017] The feeding box, feeding cylinder, support platform, combustion system, unloading box and vibrating screen are all located on the ground.

[0018] The screen is provided with a plurality of filter holes, the diameter of which gradually decreases from one end of the screen to the other.

[0019] A calcination process system for producing lightly calcined MgO using millimeter-sized particulate materials, further comprising a process as follows:

[0020] S1. The material is conveyed into the feed box, and the feed box preheats the material.

[0021] S2. The preheated material is conveyed into the input cylinder through the feed belt and feeding cylinder;

[0022] S3. The material enters the intermediate cylinder through the input cylinder for calcination;

[0023] S4. The calcined material is discharged through the feeding box and vibrating screen.

[0024] Compared with the prior art, the beneficial effects of the present invention are:

[0025] 1. Lightweight building materials achieve reduced calcination time through flow guidance, preheating, and vibration. Simultaneously, the feed plate vibrates, and displacement sensors within two sets of vibrating cylinders feed data back to the control system. The control system then connects the temperature control wire within the flow guide plate to the circuit, causing the wire to generate heat. This heat is then conducted outward through the flow guide plate, allowing it to preheat the lightweight building materials. Therefore, the flow guide plate not only guides and distributes the lightweight building materials but also preheats them, thus shortening the combustion time and improving the efficiency of the calcination process.

[0026] 2. The material before calcination is filtered through a screen to prevent unsuitable materials from entering. The material flows downward through guide plates on two sets of feed plates. Several guide plates simultaneously divert and preheat the material. The guide plates and feed plates simultaneously cause the material to vibrate, preventing material from settling on the guide plates and feed plates. The material falls downward onto the screen. Material that meets the requirements passes through the screen and falls downward onto the feed belt from the outlet, while material that does not meet the requirements cannot pass through the screen and settles on the screen, preventing unsuitable materials from entering.

[0027] 3. Filter screen cleaning to ensure filtration effectiveness. By energizing an electromagnetic spring, the first and second filter plates collide with the output cylinder, cleaning the filter screens on both plates. The material on the filter screens falls off after the impact, ensuring optimal filtration performance. Attached Figure Description

[0028] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0029] Figure 2 is a schematic diagram of the feed box in this invention;

[0030] Figure 3 is a schematic diagram of the structure of the screen in this invention;

[0031] Figure 4 is a schematic diagram of the feeding cylinder in this invention;

[0032] Figure 5 is a schematic diagram of the intermediate cylinder in this invention;

[0033] Figure 6 is a schematic diagram of the electromagnetic spring in this invention.

[0034] In the diagram: 1. Feed box; 101. Vibrating cylinder; 11. Feed plate; 111. Rewinding drum; 12. Screen; 13. Guide plate; 2. Feeding cylinder; 201. Connecting cylinder; 21. Lifting drum; 22. Lifting belt; 23. Storage plate; 3. Input cylinder; 4. Intermediate cylinder; 41. Drive ring; 5. Output cylinder; 51. First filter plate; 52. Second filter plate; 53. Electromagnetic spring; 6. Discharge box; 7. Vibrating screen; 8. Conveyor frame; 81. Feeding drum; 82. Feeding belt; 83. Suction hood; 84. Air blowing hood; 85. Scraper. Detailed Implementation

[0035] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] Example: As shown in Figures 1-6, the present invention provides a technical solution for a calcination process system for producing light-calcined MgO using millimeter-sized particulate materials, including a combustion system (not shown in the figures), a control system (not shown in the figures), and a feed box 1. A feed line is installed below the feed box 1, and two sets of feed plates 11 are installed inside the feed box 1. A feeding cylinder 2 is installed on one side of the feed box 1, and a support platform is installed on one side of the feeding cylinder 2. An input cylinder 3, an intermediate cylinder 4, and an output cylinder 5 are installed sequentially on the support platform. The input cylinder 3, the intermediate cylinder 4, and the output cylinder 5 are all connected to the combustion system. A discharge box 6 is installed on one side of the output cylinder 5, and a vibrating screen 7 is installed below the discharge box 6. The feed box 1, the feeding cylinder 2, the support platform, the combustion system, the discharge box 6, and the vibrating screen 7 are all located on the ground.

[0037] Two sets of feed plates 11 are symmetrically arranged. A shielding membrane (not shown in the figure) connects the top of the two sets of feed plates 11 to the feed box 1. The shielding membrane is elastic and is arranged on both sides of the feed box 1. The shielding membrane blocks the gap between the feed plates 11 and the feed box 1 to prevent material (the material in this application is a millimeter-sized lightweight building material) from entering the gap. The upper side of each set of feed plates 11 is connected to the telescopic rod of the vibrating electric cylinder 101. The middle part of each set of feed plates 11 is rotatably connected to the feed box 1. Two sets of winding rollers 111 are rotatably arranged on the lower side of each set of feed plates 11. An electric cylinder 101 is rotatably mounted on the feed box 1; a screen 12 is connected between two sets of winding rollers 111, with both ends of the screen 12 wound around the two sets of winding rollers 111 respectively. The two sets of winding rollers 111 are electric rollers. Several guide plates 13 are provided on opposite sides of the two sets of feed plates 11. A temperature control wire (not shown in the figure) is provided inside the guide plate 13. A temperature sensor is provided inside the feed box 1. The temperature control wire and the temperature sensor are electrically connected to the control system; several filter holes are provided on the screen 12, and the diameter of the filter holes gradually decreases from one end of the screen 12 to the other end.

[0038] The feeding line includes a conveyor frame 8, feeding rollers 81, and feeding belt 82. Multiple sets of feeding rollers 81 are arranged sequentially on the conveyor frame 8. The feeding belt 82 is fitted onto the multiple sets of feeding rollers 81, and the cross-section of the feeding belt 82 is "V" shaped. The top and bottom of the feeding box 1 are respectively provided with a feeding port and a discharging port, with the discharging port facing the feeding belt 82. The top and bottom sides of the feeding box 1 are respectively provided with a suction hood 83 and a blowing hood 84. The blowing hood 84 is connected to the outlet of a vacuum pump through a pipe, and the inlet of the vacuum pump is connected to the suction hood 83 through a pipe. The vacuum pump is located on the feeding box 1. The conveyor frame 8 is provided with a scraper 85, which is in contact with the feeding belt 82.

[0039] During the process of material entering the feed box 1, the material will overflow and form dust. The control system controls the vacuum pump to work, and the dust is sucked into the suction hood 83 and transported to the blowing hood 84 through the suction hood 83 and the pipeline. The dust is sprayed onto the feed belt 82 through the blowing hood 84 to realize the recycling of dust.

[0040] A connecting cylinder 201 is provided on one side of the feeding cylinder 2. The inlet of the feeding cylinder 2 is located below the feeding belt 82. The connecting cylinder 201 is connected to the inside of the input cylinder 3. Two sets of lifting rollers 21 are installed inside the feeding cylinder 2. Lifting belts 22 are sleeved on the outside of the two sets of lifting rollers 21. Several storage plates 23 are provided on the lifting belts 22.

[0041] Both the input cylinder 3 and the output cylinder 5 are mounted on the support platform. The intermediate cylinder 4 forms a rotational seal with the input cylinder 3 and the output cylinder 5. The input cylinder 3, the intermediate cylinder 4, and the output cylinder 5 are inclined. A drive ring 41 is provided on the outside of the intermediate cylinder 4. The drive ring 41 contacts a drive wheel. The drive wheel is rotatably mounted on the support platform. The drive wheel is connected to the output shaft of a drive motor. The drive motor is mounted on the support platform.

[0042] The feed box 6 and the output cylinder 5 are internally connected. Two sets of sliding grooves (not shown in the figure) are arranged sequentially on the inner wall of the output cylinder 5. The first filter plate 51 and the second filter plate 52 are slidably installed in the two sets of sliding grooves, respectively. The two sets of sliding grooves limit the movement distance of the first filter plate 51 and the second filter plate 52. A baffle plate is connected between the first filter plate 51 and the second filter plate 52. The baffle plate is a telescopic structure. An electromagnetic spring 53 is sleeved on the outside of the baffle plate. The two ends of the electromagnetic spring 53 are electrically connected to the control system. The electromagnetic spring 53 connects the first filter plate 51 and the second filter plate 52. A return spring is connected between the side of the first filter plate 51 away from the electromagnetic spring 53 and the inner wall of the output cylinder 5. A through groove is provided in the middle of the first filter plate 51 and the second filter plate 52. A filter screen is installed in the through groove. Displacement sensors are installed in both sets of sliding grooves. The two sets of displacement sensors are used to detect the movement distance of the first filter plate 51 and the second filter plate 52, respectively.

[0043] When the filter screen on the first filter plate 51 and the filter screen on the second filter plate 52 have worked for the set time, they need to be cleaned. At this time, the control system will continuously energize and de-energize the electromagnetic spring 53.

[0044] When the electromagnetic spring 53 is energized, it gradually contracts, pulling the first filter plate 51 to the right and the second filter plate 52 to the left, thus reducing the distance between them. The first filter plate 51 slides to the right in one set of sliding grooves, and the second filter plate 52 slides to the left in another set. When the first filter plate 51 slides to the rightmost side of one set of sliding grooves, it impacts the output cylinder 5. When the second filter plate 52 slides to the leftmost side of the other set of sliding grooves, it impacts the output cylinder 5. By energizing the electromagnetic spring 53, the first filter plate 51 and the second filter plate 52 impact the output cylinder 5, cleaning the filter screens on the first filter plate 51 and the second filter plate 52. The material on the filter screens falls off after the impact, ensuring a good filtration effect.

[0045] After the electromagnetic spring 53 is de-energized, it gradually lengthens, pushing the first filter plate 51 to the left and the second filter plate 52 to the right, thus increasing the distance between them. The first filter plate 51 moves to the left in one set of sliding grooves, while the second filter plate 52 slides to the right in another set. When the first filter plate 51 slides to the leftmost side of one set of sliding grooves, it impacts the output cylinder 5. When the second filter plate 52 slides to the rightmost side of the other set of sliding grooves, it impacts the output cylinder 5, thus cleaning the filter screens on the first and second filter plates 51 and 52 again. Through the continuous energization and de-energization of the electromagnetic spring 53, the first and second filter plates 51 and 52 vibrate continuously, achieving rapid cleaning of the filter screens on the first and second filter plates 51 and 52.

[0046] A calcination process system for producing lightly calcined MgO using millimeter-sized particulate materials, further comprising a process as follows:

[0047] S1. The material is conveyed into the feed box 1, and the feed box 1 preheats the material.

[0048] S2. The preheated material is conveyed to the input cylinder 3 through the feed belt 82 and the feeding cylinder 2;

[0049] S3. The material enters the intermediate cylinder 4 through the input cylinder 3 for calcination;

[0050] S4. The calcined material is discharged through the feeding box 6 and the vibrating screen 7.

[0051] Working principle: According to the filtration requirements of the material, the operator adjusts the rotation of two sets of winding rollers 111 through the control system. One set of winding rollers 111 rotates in the opposite direction to release the screen 12, while the other set of winding rollers 111 rotates in the forward direction to wind up the screen 12. As the two sets of winding rollers 111 continue to work, the filter holes on the screen 12 that meet the material filtration requirements are aligned with the feed inlet, so as to filter materials with different filtration requirements and improve versatility.

[0052] When the filter holes on the screen 12 that meet the filtration requirements are aligned with the feed inlet, the encoders in the two sets of winding rollers 111 feed data back to the control system. The control system controls the two sets of vibrating cylinders 101 to work. The telescopic rods of the two sets of vibrating cylinders 101 extend and then retract. The two sets of vibrating cylinders 101 drive the two sets of feed plates 11 to swing back and forth at a certain angle to achieve the vibration of the two sets of feed plates 11. The two sets of feed plates 11 drive the guide plate 13 and the screen 12 to vibrate synchronously.

[0053] When the two sets of feed plates 11 vibrate, the displacement sensors in the two sets of vibrating electric cylinders 101 feed the data back to the control system. The control system connects the temperature control wire in the guide plate 13 to the circuit, so that the temperature control wire generates heat and conducts the heat outward through the guide plate 13, so that the guide plate 13 can preheat the material. Therefore, the guide plate 13 not only realizes the function of guiding and diverting the material, but also realizes the function of preheating the material.

[0054] After the temperature control wire in the guide plate 13 is connected to the circuit, the staff conveys the material into the feed box 1 through the feed inlet. The material is guided downward through the guide plates 13 on the two sets of feed plates 11. Several guide plates 13 simultaneously divert and preheat the material. The guide plates 13 and the feed plates 11 simultaneously drive the material to vibrate, preventing the material from depositing on the guide plates 13 and the feed plates 11, so that the material falls downward onto the screen 12. The material that meets the requirements passes through the screen 12 and falls downward onto the feed belt 82 from the discharge port, while the material that does not meet the requirements cannot pass through the screen 12 and is deposited on the screen 12.

[0055] When the required material falls onto the feed belt 82, the control system, based on the data from the displacement sensor inside the vibrating cylinder 101, moves the feed belt 82 via multiple sets of feed rollers 81, and moves the lifting belt 22 and several storage plates 23 via the lifting roller 21. The feed belt 82 carries the material to the inlet of the feeding cylinder 2. The material falls onto several storage plates 23 sequentially through the inlet of the feeding cylinder 2. As the lifting roller 21 rotates, the several storage plates 23 carry the material out of the connecting cylinder 201. The material enters the input cylinder 3 through the connecting cylinder 201.

[0056] When the material enters the input cylinder 3, the control system, based on the data from the displacement sensor inside the vibrating cylinder 101, drives the drive wheel to rotate via the drive motor. The drive wheel then drives the drive ring 41 to rotate, which in turn drives the intermediate cylinder 4 to rotate. The material then enters the intermediate cylinder 4 through the input cylinder 3 and, in conjunction with the combustion system, achieves calcination of the material.

[0057] After the material has been calcined for the set time, it enters the output cylinder 5 and is filtered through the filter screen on the first filter plate 51 and the filter screen on the second filter plate 52. After filtration, the material enters the feeding box 6 through the output cylinder 5 and then enters the vibrating screen 7. After being processed by the vibrating screen 7, the material is discharged.

[0058] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A calcination process system for producing light-burned MgO using millimeter-sized particulate materials, comprising a combustion system and a control system, characterized in that: The system includes a feeding box (1), a feeding line installed below the feeding box (1), two sets of feeding plates (11) installed inside the feeding box (1), a feeding cylinder (2) installed on one side of the feeding box (1), a support platform installed on one side of the feeding cylinder (2), an input cylinder (3), an intermediate cylinder (4) and an output cylinder (5) installed sequentially on the support platform, the input cylinder (3), the intermediate cylinder (4) and the output cylinder (5) are all connected to the combustion system, a discharge box (6) is installed on one side of the output cylinder (5), and a vibrating screen (7) is installed below the discharge box (6); the two sets of feeding plates (11) are symmetrically arranged, and a vibrating electric cylinder (10) is connected to the upper side of each set of feeding plates (11). 1) The telescopic rod, the middle of the two sets of feed plates (11) are rotatably connected to the feed box (1), and two sets of winding rollers (111) are rotatably arranged on the lower side of the two sets of feed plates (11). The vibrating electric cylinder (101) is rotatably arranged on the feed box (1); a screen (12) is connected between the two sets of winding rollers (111), and the two ends of the screen (12) are respectively wound on the two sets of winding rollers (111). The two sets of winding rollers (111) are electric rollers. Several guide plates (13) are arranged on the opposite side of the two sets of feed plates (11). A temperature control wire is arranged inside the guide plate (13). A temperature sensor is arranged inside the feed box (1). The temperature control wire and temperature sensor are electrically connected to the control system; the feeding line includes a conveyor frame (8), feeding rollers (81) and feeding belt (82). Multiple sets of feeding rollers (81) are arranged on the conveyor frame (8). The feeding belt (82) is sleeved on the multiple sets of feeding rollers (81). The cross-section of the feeding belt (82) is "V" shaped; the top and bottom of the feeding box (1) are respectively provided with a feeding port and a discharging port. The discharging port is directly opposite the feeding belt (82). The two sides of the top and the two sides of the bottom of the feeding box (1) are respectively provided with a suction hood (83) and a blowing hood (84). The blowing hood (84) is connected to the control system through a pipe. The vacuum pump has an outlet and an inlet connected to a suction hood (83) via a pipe. The vacuum pump is mounted on a feed box (1). A scraper (85) is mounted on the conveyor frame (8) and the scraper (85) contacts the feed belt (82). A connecting cylinder (201) is mounted on one side of the feeding cylinder (2). The inlet of the feeding cylinder (2) is located below the feed belt (82). The connecting cylinder (201) is connected to the inside of the input cylinder (3). Two sets of lifting rollers (21) are installed inside the feeding cylinder (2). A lifting belt (22) is mounted on the outside of the two sets of lifting rollers (21). Several storage plates (23) are mounted on the lifting belt (22).

2. The calcination process system for producing light-burned MgO using millimeter-sized particulate materials according to claim 1, characterized in that: The input cylinder (3) and the output cylinder (5) are both mounted on the support platform. The intermediate cylinder (4) forms a rotational seal with the input cylinder (3) and the output cylinder (5). The input cylinder (3), the intermediate cylinder (4) and the output cylinder (5) are inclined. A drive ring (41) is provided on the outside of the intermediate cylinder (4). The drive ring (41) contacts a drive wheel. The drive wheel is rotatably mounted on the support platform. The drive wheel is connected to the output shaft of a drive motor. The drive motor is mounted on the support platform.

3. The calcination process system for producing light-burned MgO using millimeter-sized particulate materials according to claim 2, characterized in that: The feed box (6) and the output cylinder (5) are internally connected. Two sets of sliding grooves are arranged sequentially on the inner wall of the output cylinder (5). A first filter plate (51) and a second filter plate (52) are slidably installed in the two sets of sliding grooves respectively. A baffle plate is connected between the first filter plate (51) and the second filter plate (52). The baffle plate is a telescopic structure. An electromagnetic spring (53) is sleeved on the outside of the baffle plate. The two ends of the electromagnetic spring (53) are electrically connected to the control system. The electromagnetic spring (53) connects the first filter plate (51) and the second filter plate (52). A reset spring is connected between the side of the first filter plate (51) away from the electromagnetic spring (53) and the inner wall of the output cylinder (5). A through groove is provided in the middle of the first filter plate (51) and the second filter plate (52). A filter screen is provided in the through groove. A displacement sensor is provided in both sets of sliding grooves.

4. The calcination process system for producing light-burned MgO using millimeter-sized particulate materials according to claim 3, characterized in that: A shielding membrane is connected between the top of the two sets of feed plates (11) and the feed box (1). The shielding membrane is elastic and is disposed on both sides of the feed box (1).

5. The calcination process system for producing light-burned MgO using millimeter-sized particulate materials according to claim 4, characterized in that: The feeding box (1), feeding cylinder (2), support platform, combustion system, unloading box (6) and vibrating screen (7) are all located on the ground.

6. The calcination process system for producing light-burned MgO using millimeter-sized particulate materials according to claim 5, characterized in that: The screen (12) is provided with a plurality of filter holes, the diameter of which gradually decreases from one end of the screen (12) to the other end.

Images