Sulfating roasting fluidized bed furnace for pyrite

Abstract

The utility model relates to the technical field of pyrite sulfation, in particular to a pyrite sulfation roasting fluidized bed furnace, which comprises a fluidized bed furnace, an electric push rod, a moving plate, a servo motor, a limiting plate and a scraper, an overflow port is arranged on the side surface of the fluidized bed furnace, air caps are uniformly and fixedly connected to the bottom of the fluidized bed furnace, and a guide plate is sleeved between the air caps in a sliding manner. The telescopic end of the electric push rod is connected with a guide plate, the middle of the guide plate is fixedly connected with a limiting plate, and the outer portion of the limiting plate is rotationally connected with a movable plate. The moving plate is moved upwards through the electric push rod, so that the moving plate crosses over the hood, then the servo motor drives the gear to rotate, the gear drives the gear ring to rotate, then the moving plate is driven to rotate, and the scraping plate scrapes away chippings attached to the surface of the moving plate.

Description

Technical Field

[0001] The utility model relates to the technical field of pyrite sulfation, in particular to a sulfation roasting and boiling furnace for pyrite. Background Art

[0002] In the sulfation process, the treatment of pyrite is a crucial link. As the main raw material, pyrite needs to be converted into sulfuric acid through a specific process. In this process, high temperature heating is an indispensable step, because high temperature can make the sulfur element in pyrite fully react to generate the required sulfuric acid.

[0003] In order to achieve efficient and uniform high-temperature heating, the fluidized bed furnace is designed as the core equipment of this process. The interior of the fluidized bed furnace, especially its bottom, is usually equipped with protruding hoods. The function of these hoods is to suspend and "boil" the pyrite particles in the furnace by blowing in hot air, thereby increasing the reaction area and improving the reaction efficiency.

[0004] However, this design also brings some challenges. Due to the presence of the hood and the high temperature environment in the furnace, some residues are easily accumulated at the bottom of the boiling furnace, such as unreacted pyrite particles, ash and other impurities. The presence of these residues will not only affect the normal operation of the equipment, but also reduce the reaction efficiency and even cause damage to the equipment.

[0005] Therefore, cleaning the residue in the boiling furnace becomes particularly important. However, due to the protrusion of the hood and the high temperature environment in the furnace, traditional cleaning methods are often difficult to implement. Utility Model Content

[0006] In order to overcome the disadvantage that the protruding hood is provided at the bottom of the boiling furnace, which makes it inconvenient to clean the debris at the bottom of the boiling furnace, the technical problem to be solved is: to provide a pyrite sulphate roasting boiling furnace that is easy to clean the debris residue.

[0007] The technical scheme of the utility model is: a sulfation roasting boiling furnace for pyrite, comprising a boiling furnace, an overflow port is provided on the side of the boiling furnace, wind caps are evenly fixedly connected to the bottom of the boiling furnace, guide plates are slidably sleeved between the wind caps, and also comprising an electric push rod, a movable plate, a servo motor, a limit plate and a scraper, a through hole is provided on the movable plate to be embedded in the wind cap, the telescopic end of the electric push rod is connected with the guide plate, the middle part of the guide plate is fixedly connected with the limit plate, the outer part of the limit plate is rotatably connected with the movable plate, the electric push rod can push the guide plate to adjust the height, a gear ring is fixedly connected to the bottom of the movable plate, the limit plate is connected to the servo motor through a bracket, the output shaft of the servo motor is connected with a gear, the gear and the gear ring are meshed with each other, the upper part of the limit plate is connected with the scraper, and the scraper is in friction contact with the end face of the movable plate.

[0008] Furthermore, a baffle is provided on the side of the scraper.

[0009] Furthermore, the guide plate is inclined, and the inclination direction is the overflow port.

[0010] Furthermore, it also includes an extrusion plate and a wedge block, the extrusion plate is fixed to the gear ring, the wedge block is fixed to the guide plate, and the wedge block can contact and push the extrusion plate.

[0011] Furthermore, a return spring is included, and the return spring is connected between the guide plate and the bottom surface of the boiling furnace.

[0012] Furthermore, the invention also includes an observation window, and the side of the boiling furnace is provided with an observation window.

[0013] Furthermore, it also includes a discharge plate and a collecting box. The discharge plate is arranged at a corresponding position of the overflow port, and the collecting box is fixedly connected to the bottom of the boiling furnace. The collecting box can be connected to the discharge plate.

[0014] Furthermore, a guide groove is provided at the bottom of the collecting box.

[0015] The beneficial effect of the utility model is that the movable plate is moved upward by the electric push rod so that the movable plate passes over the wind hood, and then the gear is driven to rotate by the servo motor, the gear drives the gear ring to rotate, and then drives the movable plate to rotate, and the scraper scrapes off the debris attached to the surface of the movable plate, thereby achieving an efficient cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0017] Figure 2 It is a three-dimensional structural schematic diagram of the collection box, observation window and baffle of the utility model.

[0018] Figure 3 It is a three-dimensional structural schematic diagram of the guide plate, the discharge plate and the wind hood of the utility model.

[0019] Figure 4 It is a three-dimensional structural schematic diagram of the limit plate, gear ring and gear of the utility model.

[0020] Figure 5 It is a three-dimensional structural schematic diagram of the extrusion plate, wedge block and return spring of the utility model.

[0021] In the accompanying drawings: 1_boiling furnace, 2_wind hood, 3_electric push rod, 4_guide plate, 401_discharging plate, 5_moving plate, 501_limiting plate, 6_scraper, 7_gear ring, 8_servo motor, 9_gear, 10_extrusion plate, 11_wedge block, 12_reset spring, 13_observation window, 14_collection box, 15_guide groove, 16_baffle. DETAILED DESCRIPTION

[0022] The following description is only a preferred embodiment of the present invention and does not limit the protection scope of the present invention.

[0023] Embodiment: A pyrite sulphate roasting boiling furnace, such as Figure 1-Figure 5 As shown, it includes a boiling furnace 1, an overflow port is provided on the side of the boiling furnace 1, a hood 2 is evenly fixed to the bottom of the boiling furnace 1, a guide plate 4 is slidably sleeved between the hoods 2, the guide plate 4 is inclined, and the inclination direction is the overflow port, a reset spring 12 is connected between the guide plate 4 and the bottom surface of the boiling furnace 1, and also includes an electric push rod 3, a moving plate 5, a servo motor 8, a limit plate 501 and a scraper 6, a through hole is provided on the moving plate 5 that is embedded in the hood 2, the telescopic end of the electric push rod 3 is connected to the guide plate 4, and the middle of the guide plate 4 is fixedly connected to the limit plate 501, the limit plate 501 is externally rotatably connected to the movable plate 5, the electric push rod 3 can push the guide plate 4 to adjust the height, the bottom of the movable plate 5 is fixedly connected to the ring gear 7, the limit plate 501 is connected to the servo motor 8 through the bracket, the output shaft of the servo motor 8 is connected to the gear 9, the gear 9 and the ring gear 7 are meshed with each other, the upper part of the limit plate 501 is connected to the scraper 6, the scraper 6 is in friction contact with the end face of the movable plate 5, the side of the scraper 6 is provided with a baffle 16, the baffle 16 is provided with a bent portion, and the path of the bent portion coincides with the position of the through hole on the movable plate 5.

[0024] like Figure 2 As shown, it also includes an extrusion plate 10 and a wedge block 11. The extrusion plate 10 is fixed to the gear ring 7, and the wedge block 11 is fixed to the guide plate 4. The wedge block 11 can contact and push the extrusion plate 10.

[0025] like Figure 1 As shown, an observation window 13 is also included. The side of the boiling furnace 1 is provided with an observation window 13 made of high temperature resistant material. The staff can observe the situation in the boiling furnace 1 in real time through the observation window 13.

[0026] like Figure 1 and Figure 2 As shown, it also includes a discharge plate 401 and a collecting box 14. The discharge plate 401 is arranged at a corresponding position of the overflow port. The collecting box 14 is fixedly connected to the bottom of the boiling furnace 1. The collecting box 14 can dock with the discharge plate 401. A guide groove 15 is opened at the bottom of the collecting box 14, and debris can be discharged from the guide groove 15.

[0027] Working principle: Pyrite is introduced into the boiling furnace 1 for heating. Since the hood 2 is protruding from the moving plate 5 in the initial state, the hood 2 can achieve the effect of improving the combustion stability and combustion intensity. After the pyrite is fully burned at high temperature, the electric push rod 3 is turned on to push the guide plate 4 and the moving plate 5 to move upward. The moving plate 5 will be lifted above the hood 2, and then the servo motor 8 is turned on to drive the gear 9 to rotate, and the gear 9 drives the gear ring 7 to rotate, and then drives the moving plate 5 to rotate. Since the scraper 6 is fixed to the limit plate 501, the scraper 6 is fixed to the limit plate 501 during the rotation of the moving plate 5. Plate 6 scrapes the debris attached to the surface of the movable plate 5, and the debris will fall from the through hole embedded in the wind hood 2 and finally fall on the guide plate 4. After the movable plate 5 is cleaned, the movable plate 5 is driven by the electric push rod 3 to move downward and reset. Since the guide plate 4 is inclined, at the same time, the extrusion plate 10 fixed to the ring gear 7 can continue to move up and down under the action of the wedge block 11, so as to push the guide plate 4 to vibrate, and the debris falling into the guide plate 4 will be discharged from the overflow port to the collection box 14, thereby completing the cleaning of the boiling furnace 1.

[0028] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A fluidized bed furnace for sulphation roasting of pyrite, comprising a fluidized bed furnace (1), an overflow port being provided on the side of the fluidized bed furnace (1), hoods (2) being evenly fixed to the bottom of the fluidized bed furnace (1), and guide plates (4) being slidably sleeved between the hoods (2), characterized in that: The invention also comprises an electric push rod (3), a movable plate (5), a servo motor (8), a limit plate (501) and a scraper (6); the movable plate (5) is provided with a through hole which is engaged with the wind cap (2); the telescopic end of the electric push rod (3) is connected with a guide plate (4); the middle of the guide plate (4) is fixedly connected with the limit plate (501); the outer portion of the limit plate (501) is rotatably connected with the movable plate (5); the electric push rod (3) can push the guide plate (4) to adjust its height; the bottom of the movable plate (5) is fixedly connected with a gear ring (7); the limit plate (501) is connected with the servo motor (8) via a bracket; the output shaft of the servo motor (8) is connected with a gear (9); the gear (9) and the gear ring (7) are meshed with each other; the upper portion of the limit plate (501) is connected with a scraper (6); the scraper (6) is in frictional contact with the end surface of the movable plate (5).

2. The sulfating roasting and boiling furnace for pyrite according to claim 1, characterized in that: A baffle (16) is arranged on the side of the scraper (6).

3. The sulfating roasting and boiling furnace for pyrite according to claim 2, characterized in that: The guide plate (4) is inclined, and the inclined direction is the overflow port.

4. The sulfating roasting and boiling furnace for pyrite according to claim 3, characterized in that: It also includes an extrusion plate (10) and a wedge block (11). The extrusion plate (10) is fixedly connected to the gear ring (7), and the wedge block (11) is fixedly connected to the guide plate (4). The wedge block (11) can contact and push the extrusion plate (10).

5. The sulfation roasting and boiling furnace for pyrite according to claim 4, characterized in that: It also includes a return spring (12), which is connected between the guide plate (4) and the inner bottom surface of the boiling furnace (1).

6. The sulfation roasting and boiling furnace for pyrite according to claim 5, characterized in that: It also includes an observation window (13), and the side of the boiling furnace (1) is provided with an observation window (13).

7. The sulfating roasting and boiling furnace for pyrite according to claim 6, characterized in that: It also includes a discharge plate (401) and a collection box (14), wherein the discharge plate (401) is arranged at a position corresponding to the overflow port, and the collection box (14) is fixedly connected to the bottom of the boiling furnace (1), and the collection box (14) can be connected to the discharge plate (401).

8. The sulfation roasting and boiling furnace for pyrite according to claim 7, characterized in that: A guide groove (15) is provided at the bottom of the collecting box (14).

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