Fluidized bed furnace feeding device for sulfuric acid production

Abstract

The utility model relates to the technical field of sulfuric acid production, in particular to a fluidized bed furnace material supplementing device for sulfuric acid production, which comprises a fluidized bed furnace, a guide support, an extrusion rod, a servo motor, a lead screw, a movable seat and a hopper, the bottom of the fluidized bed furnace is provided with a feed port, the guide support is butted with the feed port, and the lead screw is rotatably connected in the guide support. The lead screw is driven by a servo motor, the movable base slides in the guide support in a limited mode and is connected to the lead screw through threads, a hopper is connected to the bottom of the movable base, and a discharging opening is formed in the side wall of the hopper. The servo motor is started to drive the lead screw to rotate continuously, the lead screw drives the movable base to enter the fluidized bed furnace along the guide support, the extrusion rod pushes the baffle upwards, fuel in the hopper is guided out of the discharging opening into the fluidized bed furnace, and therefore the effect of safe feeding is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of sulfuric acid production, in particular to a charging device for a fluidized bed furnace in sulfuric acid production. Background Art

[0002] In the charging process of sulfuric acid production, although automation technology has been widely used in many aspects, due to the extremely high temperature inside the fluidized bed furnace, this specific link still relies on manual operation. Due to the huge challenges brought by the high-temperature environment, workers cannot directly approach the fluidized bed furnace for fuel replenishment. Therefore, they must stand in a safe area away from the furnace mouth and throw the fuel into the furnace.

[0003] This manual charging method not only has low safety but also poses certain risks. The high temperature inside the furnace not only makes the air temperature around the furnace mouth extremely high, but also the radiant heat of the flame inside the furnace may cause burns to the workers. Even if the workers wear professional protective equipment, working in this environment for a long time is extremely likely to cause fatigue, thus increasing the risk of operation errors.

[0004] In addition, the method of manually throwing fuel is also prone to fuel waste. Since it is impossible to directly observe the situation inside the furnace, it is often difficult for workers to accurately judge the amount and position of fuel delivery. Excessive fuel input may cause the temperature inside the furnace to be too high, affecting the production quality of sulfuric acid; while too little fuel cannot meet the production demand, reducing production efficiency. At the same time, due to possible scattering and splashing during the fuel throwing process, some fuel fails to enter the furnace and is directly wasted.

[0005] To solve these problems, it is urgent to explore new charging methods. Content of the Utility Model

[0006] In order to overcome the above-mentioned shortcomings, the utility model provides a charging device for a fluidized bed furnace in sulfuric acid production with relatively high safety.

[0007] The technical solution of the utility model is as follows: A charging device for a fluidized bed furnace in sulfuric acid production includes a fluidized bed furnace. An inlet is opened at the bottom of the fluidized bed furnace. The charging device further includes a guiding bracket, a pressing rod, a servo motor, a lead screw, a moving seat, and a hopper. The guiding bracket is connected to the inlet. A lead screw is rotatably connected inside the guiding bracket and is driven by the servo motor. The moving seat is slidably limited inside the guiding bracket and is connected to the lead screw through a thread. A hopper is connected to the bottom of the moving seat. A discharge port is opened on the side wall of the hopper. A fixing rod is arranged outside the hopper. A baffle is slidably connected to the fixing rod. A return spring is connected between the baffle and the fixing rod. The baffle can block the discharge port, and the pressing rod can contact and push the baffle to move.

[0008] A more excellent solution is that the bottom surface of the hopper is in an inverted cone shape.

[0009] A more excellent solution is that the lead screw is provided with a closed reciprocating thread.

[0010] A more excellent solution is that it further includes an extension plate, a rack and a gear. The hopper is rotatably connected to the moving seat. A gear is connected to the rotating shaft of the hopper. One side of the guiding bracket is connected with an extension plate, the extension plate is connected with a rack, and the rack can contact and mesh with the gear.

[0011] A more excellent solution is that a steel brush is arranged at the connection between the moving seat and the lead screw, and the steel brush can brush the surface of the lead screw.

[0012] A more excellent solution is that it further includes a cover plate. The cover plate is rotatably connected to the hopper through a hinge, and the cover plate is provided with a handle.

[0013] A more excellent solution is that the baffle is provided with a universal ball head, and the extrusion rod can contact the universal ball head.

[0014] The beneficial effects of the present utility model: When the servo motor is started to drive the lead screw to rotate continuously, the lead screw will drive the moving seat to enter the fluidized bed furnace along the guiding bracket. The extrusion rod will push the baffle upwards, and the fuel in the hopper will be discharged from the discharge port into the fluidized bed furnace, so as to achieve the effect of safe feeding. This device does not require the operator to approach the fluidized bed furnace, improving the feeding efficiency of the fluidized bed furnace and also enhancing the safety of sulfuric acid production. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the present utility model.

[0016] Figure 2 It is a three-dimensional structural schematic diagram of the guiding bracket, extrusion rod and lead screw of the present utility model.

[0017] Figure 3 It is a three-dimensional structural schematic diagram of the hopper, discharge port and baffle of the present utility model.

[0018] Figure 4 It is a three-dimensional structural schematic diagram of the rack, gear and extension plate of the present utility model.

[0019] Figure 5 It is a three-dimensional structural schematic diagram of the handle, cover plate and universal wheel of the present utility model.

[0020] The labels in the figure are: 1 - fluidized bed furnace, 2 - guiding bracket, 3 - extrusion rod, 4 - servo motor, 5 - lead screw, 6 - moving seat, 7 - hopper, 8 - discharge port, 9 - baffle, 10 - fixed rod, 11 - return spring, 12 - extension plate, 13 - rack, 14 - gear, 15 - steel brush, 16 - cover plate, 17 - handle, 18 - universal ball head. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The present utility model will be further described below in conjunction with the embodiments shown in the accompanying drawings.

[0022] Embodiment: A charging device for a fluidized bed furnace in sulfuric acid production, as Figures 1 - 5 shown, includes a fluidized bed furnace 1. An inlet is provided at the bottom of the fluidized bed furnace 1. It also includes a guiding support 2, a pressing rod 3, a servo motor 4, a lead screw 5, a moving seat 6, and a hopper 7. The guiding support 2 is connected to the inlet. A lead screw 5 is rotatably connected inside the guiding support 2. The lead screw 5 is driven by the servo motor 4. The moving seat 6 is slidably limited inside the guiding support 2 and is threadedly connected to the lead screw 5. Since the lead screw 5 is provided with a closed reciprocating thread, when the servo motor 4 is started, it drives the lead screw 5 to rotate, and the lead screw 5 will drive the moving seat 6 to move reciprocally. A hopper 7 is connected to the bottom of the moving seat 6. The bottom surface of the hopper 7 is in an inverted conical shape. An outlet 8 is provided on the side wall of the hopper 7. A fixed rod 10 is arranged outside the hopper 7. A baffle 9 is slidably connected to the fixed rod 10. A return spring 11 is connected between the baffle 9 and the fixed rod 10. The baffle 9 can block the outlet 8. The front end of the pressing rod 3 is in a state of slanting downward, and this inclined rod can contact and push the baffle 9 to move upward, thereby opening the outlet 8. The fuel in the hopper 7 will be led out from the outlet 8.

[0023] As Figure 4 shown, it also includes an extension plate 12, a rack 13, and a gear 14. The hopper 7 is rotatably connected to the moving seat 6. A gear 14 is connected to the rotating shaft of the hopper 7. An extension plate 12 is connected to one side of the guiding support 2. The extension plate 12 is connected with a rack 13, and the rack 13 can contact and engage with the gear 14.

[0024] As Figure 5 shown, a steel brush 15 is provided at the connection between the moving seat 6 and the lead screw 5. The steel brush 15 can brush the surface of the lead screw 5. To prevent fuel from getting stuck in the lead screw 5, the steel brush 15 is provided to clean the lead screw 5 in real time.

[0025] As Figure 5 shown, it also includes a cover plate 16. The cover plate 16 is rotatably connected to the hopper 7 through a hinge. The cover plate 16 is provided with a handle 17.

[0026] As Figure 5 shown, the baffle 9 is provided with a universal ball head 18, and the pressing rod 3 can contact the universal ball head 18, reducing the friction coefficient between the pressing rod 3 and the baffle 9.

[0027] Working principle: the guide bracket 2 is 15 meters long, the rear end of the guide bracket 2 is located in the boiling furnace 1, the extrusion rod 3 is located in the boiling furnace 1 and is located at the corresponding position of the rear end of the guide bracket 2, the extrusion rod 3 is made of high temperature resistant material, the staff is located at the front end of the guide bracket 2, turn on the servo motor 4 to drive the screw rod 5 to rotate continuously, because the screw rod 5 is provided with a closed reciprocating thread, the screw rod 5 can drive the hopper 7 to reciprocate in the guide bracket 2, when the hopper 7 moves to the front end of the guide bracket 2, the staff introduces the fuel into the hopper 7, and the hopper 7 moves to the rear end of the guide bracket 2, during which the extrusion rod 3 pushes the baffle 9 to move upward, and the discharge port 8 of the hopper 7 is opened, at the same time, the rack 13 drives the gear 14 to rotate, that is, drives the hopper 7 to rotate, and since the inner bottom surface of the hopper 7 is set to an inverted cone, the fuel in the hopper 7 will be discharged from the discharge port 8 to the boiling furnace 1, thereby achieving the feeding effect.

[0028] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of those skilled in the art without departing from the purpose of the present invention.

Claims

1. A feeding device for a fluidized bed furnace for sulfuric acid production, comprising a fluidized bed furnace (1), wherein a feeding port is provided at the bottom of the fluidized bed furnace (1), and wherein: The invention also comprises a guide bracket (2), an extrusion rod (3), a servo motor (4), a screw rod (5), a movable seat (6) and a hopper (7); the guide bracket (2) is docked with a feed port; a screw rod (5) is rotatably connected in the guide bracket (2); the screw rod (5) is driven by the servo motor (4); the movable seat (6) is limitedly slid in the guide bracket (2) and is connected to the screw rod (5) by a thread; the bottom of the movable seat (6) is connected to the hopper (7); a discharge port (8) is provided on the side wall of the hopper (7); a fixed rod (10) is arranged outside the hopper (7); a baffle (9) is slidably connected to the fixed rod (10); a return spring (11) is connected between the baffle (9) and the fixed rod (10); the baffle (9) can block the discharge port (8); the extrusion rod (3) can contact and push the baffle (9) to move.

2. A feeding device for a fluidized bed furnace for sulfuric acid production as claimed in claim 1, characterized in that: The bottom surface of the hopper (7) is in an inverted cone shape.

3. A feeding device for a fluidized bed furnace for sulfuric acid production as claimed in claim 2, characterized in that: The screw rod (5) is provided with a closed reciprocating thread.

4. A feeding device for a fluidized bed furnace for sulfuric acid production as claimed in claim 3, characterized in that: The guide bracket (2) further comprises an extension plate (12), a rack (13) and a gear (14); the hopper (7) is rotatably connected to the movable seat (6); the gear (14) is connected to the rotating shaft of the hopper (7); one side of the guide bracket (2) is connected to the extension plate (12); the extension plate (12) is connected to the rack (13); and the rack (13) can contact and mesh with the gear (14).

5. A feeding device for a fluidized bed furnace for sulfuric acid production as claimed in claim 4, characterized in that: A steel brush (15) is provided at the connection between the movable seat (6) and the screw rod (5), and the steel brush (15) can brush the surface of the screw rod (5).

6. A feeding device for a fluidized bed furnace for sulfuric acid production as claimed in claim 5, characterized in that: The utility model also comprises a cover plate (16), which is rotatably connected to the hopper (7) via a hinge, and the cover plate (16) is provided with a handle (17).

7. A feeding device for a fluidized bed furnace for sulfuric acid production as claimed in claim 6, characterized in that: The baffle (9) is provided with a universal ball head (18), and the extrusion rod (3) can come into contact with the universal ball head (18).

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