Material propelling device of rotary kiln

Abstract

The utility model discloses a rotary kiln material propelling device which comprises a kiln body, a feeding pipe is arranged on the left side of the kiln body in a penetrating mode, a rotating connector is arranged at the tail end of the left side of the feeding pipe, a connecting pipe is arranged on one side of the rotating connector, a moving plate is connected into the kiln body in a sliding mode, and the moving plate is oval. Pushing plates are arranged at the upper end and the lower end of the moving plate correspondingly, rotating mechanisms used for rotating the pushing plates are arranged at the upper end and the lower end of the moving plate correspondingly, and a moving mechanism used for moving the moving plate is arranged on the left side of the kiln body. According to the utility model, the lead screw sleeves are matched with the reciprocating lead screw region, so that the lead screw sleeves move to drive the movable plate to move, and the movable plate moves to push materials entering the kiln body, thereby avoiding the phenomenon of material accumulation.

Description

TECHNICAL FIELD

[0001] The utility model relates to material propelling technical field especially relates to rotary kiln material propelling device. BACKGROUND

[0002] Rotary kiln refers to rotary calcining kiln (commonly known as rotary kiln), belongs to building material equipment class. Rotary kiln can be divided into cement kiln, metallurgical chemical kiln and lime kiln according to different processing materials. Cement kiln is mainly used for calcining cement clinker, and is divided into two categories of dry process cement kiln and wet process cement kiln. Metallurgical chemical kiln is mainly used for magnetization roasting of lean iron ore in steel plant, oxidation roasting of chromium and nickel iron ore, roasting of high-alumina bauxite in refractory material plant and roasting of clinker and aluminum hydroxide in aluminum plant, and roasting of chromium sand and chromium powder and other minerals in chemical plant. Lime kiln (i.e. active lime kiln) is used for roasting active lime and light-burned dolomite for steel plant and ferroalloy plant. In the production of vanadium-nitrogen alloy, nitrogen gas is introduced into the rotary kiln during reaction, and air is strictly prevented from entering, so the feeding end and the discharging end are in a sealed state. A material level probe is installed in the feeding pipe. An upper sealing valve and a lower sealing valve are installed at the upper part of the feeding pipe. In practice, the two valves are usually driven by a pneumatic cylinder. The gas path direction of the cylinder is controlled by a solenoid valve. When the material level probe detects a low material level, the lower sealing valve opens and the upper sealing valve closes. The material falls into the feeding pipe between the upper sealing valve and the lower sealing valve. Then the lower sealing valve closes and the upper sealing valve opens. The material enters between the upper sealing valve and the lower sealing valve from the upper part of the upper sealing valve. The upper sealing valve is closed again. In this patent, a time relay is used to control the timing of the operation of each component. Air is prevented from entering the kiln during feeding. The relay control in this patent application can be upgraded to PLC control. The material level meter is connected to the PLC, and the upper sealing valve and the lower sealing valve are controlled by the PLC.

[0003] The rotary kiln in the prior art generally does not have a device for actively pushing the material, which causes the material to accumulate and thus be relatively stationary in the rotary kiln for a period of time, which may result in ring formation and affect production. Some devices actively push the material, but do not have a protection device, which allows the material to enter and thus affects the normal operation of the device and reduces the adaptability of the device. UTILITY MODEL CONTENT

[0004] The utility model aims at solving the shortcomings in the prior art. By using the cooperation of the lead screw sleeve and the reciprocating lead screw area, the movement of the multiple lead screw sleeves drives the movement of the moving plate, which moves the material entering the kiln body and avoids the accumulation of the material. The rotary kiln material propelling device is provided.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A rotary kiln material feeding device includes a kiln body. A feed pipe is provided through the left side of the kiln body. A rotary joint is provided at the left end of the feed pipe. A connecting pipe is provided on one side of the rotary joint. A movable plate is slidably connected inside the kiln body. The movable plate is elliptical in shape. Push plates are provided at both the upper and lower ends of the movable plate. Rotation mechanisms for rotating the push plates are provided at both the upper and lower ends of the movable plate. A moving mechanism for moving the movable plate is provided on the left side of the kiln body.

[0007] Preferably, the rotating mechanism includes grooves formed at the upper and lower ends of the movable plate, a rotating shaft is rotatably connected in the grooves, and the push plate is disposed on the outer wall of the rotating shaft.

[0008] Preferably, the moving mechanism includes a plurality of symmetrically arranged rotating rods that are rotatably connected to the left side wall of the kiln body. Each of the plurality of rotating rods has a reciprocating screw area on its outer wall, and each of the plurality of reciprocating screw areas has a screw sleeve on its outer wall. Each of the plurality of screw sleeves passes through the moving plate and is fixedly connected to it.

[0009] Preferably, the moving plate has a cylindrical body extending through it, and a plurality of rotating rods extend through both sides of the cylindrical body and are slidably connected to it.

[0010] Preferably, a plurality of limiting rods are provided between the inner walls on both sides of the cylinder, and the plurality of limiting rods pass through a plurality of lead screw sleeves and are slidably connected thereto.

[0011] Preferably, the outer walls of the plurality of rotating rods are provided with gears, and the outer wall of the connecting pipe is provided with a toothed ring, the toothed ring meshing with the plurality of gears.

[0012] The beneficial effects of this utility model are:

[0013] 1. By utilizing the cooperation between the lead screw sleeve and the reciprocating lead screw zone, multiple lead screw sleeves move to drive the moving plate, which in turn pushes the material entering the kiln body, preventing the material from accumulating.

[0014] 2. By protecting multiple reciprocating screw zones and screw sleeves with the cylinder body, material entry is prevented, which could affect the operation of the device and improve the adaptability of the device. Attached Figure Description

[0015] Fig. 1 This is a left-side view of the overall structure of this utility model;

[0016] Fig. 2 This is a right-side view of the overall structure of this utility model;

[0017] Fig. 3 This is a cross-sectional schematic diagram of the overall structure of this utility model.

[0018] In the diagram: 1. Kiln body, 2. Feed pipe, 3. Rotary joint, 4. Connecting pipe, 5. Rotating rod, 6. Gear, 7. Gear ring, 8. Cylinder, 9. Moving plate, 10. Groove, 11. Push plate, 12. Rotating shaft, 13. Reciprocating screw area, 14. Screw sleeve, 15. Limiting rod. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0020] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0021] Reference Figs. 1-3 The rotary kiln material propulsion device includes a kiln body 1. A feed pipe 2 is provided through the left side of the kiln body 1. A rotary joint 3 is provided at the left end of the feed pipe 2. A connecting pipe 4 is provided on one side of the rotary joint 3. A movable plate 9 is slidably connected inside the kiln body 1. The movable plate 9 is elliptical in shape. Push plates 11 are provided at both the upper and lower ends of the movable plate 9. Rotation mechanisms for rotating the push plates 11 are provided at both the upper and lower ends of the movable plate 9. The rotation mechanism includes grooves 10 opened at the upper and lower ends of the movable plate 9. A rotating shaft 12 is rotatably connected inside the grooves 10. The push plates 11 are provided on the outer wall of the rotating shaft 12.

[0022] A moving mechanism for moving the moving plate 9 is provided on the left side of the kiln body 1. The moving mechanism includes multiple symmetrically arranged rotating rods 5 that are rotatably connected to the left side wall of the kiln body 1. Each rotating rod 5 has a reciprocating screw area 13 on its outer wall. Each reciprocating screw area 13 has a screw sleeve 14 on its outer wall. Each screw sleeve 14 passes through the moving plate 9 and is fixedly connected to it. By utilizing the cooperation between the screw sleeve 14 and the reciprocating screw area 13, the multiple screw sleeves 14 move to drive the moving plate 9 to move. The movement of the moving plate 9 pushes the material entering the kiln body 1, preventing the material from accumulating.

[0023] A cylinder 8 is installed through the movable plate 9, and multiple rotating rods 5 pass through both sides of the cylinder 8 and are slidably connected to it. By having the cylinder 8 protect multiple reciprocating screw areas 13 and screw sleeves 14, material is prevented from entering and affecting the operation of the device, thus improving the adaptability of the device.

[0024] Multiple limiting rods 15 are provided between the inner walls on both sides of the cylinder 8. The multiple limiting rods 15 pass through multiple lead screw sleeves 14 and are slidably connected to them.

[0025] The outer walls of multiple rotating rods 5 are provided with gears 6, and the outer walls of connecting pipes 4 are provided with toothed rings 7, which mesh with multiple gears 6.

[0026] In use, the material enters the kiln body 1 through the connecting pipe 4 and the feed pipe 2. Using existing technology, the kiln body 1 is rotated. At this time, the connecting pipe 4 does not rotate due to the rotary joint 3 between it and the feed pipe 2. The rotation of the kiln body 1 drives multiple rotating rods 5 to move. Due to the meshing of the gear 6 and the gear ring 7, the multiple rotating rods 5 rotate during rotation, causing the reciprocating screw area 13 on its outer wall to rotate. The screw sleeve 14, in cooperation with the reciprocating screw area 13, moves the multiple screw sleeves 14, driving the moving plate 9 to move. The moving plate 9 pushes the material entering the kiln body 1, preventing material accumulation. The rotary connection between the push plate 11 and the groove 10 ensures that when the moving plate 9 returns to its original position with the push plate 11, the push plate 11 will not push the material at its rear end. The movement of the moving plate 9 drives the cylinder 8 to move, protecting the multiple reciprocating screw areas 13 and the screw sleeves 14, preventing material from entering and affecting the operation of the device, thus improving the adaptability of the device.

[0027] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A rotary kiln material feeding device, comprising a kiln body (1), characterized in that, A feed pipe (2) is provided through the left side of the kiln body (1). A rotary joint (3) is provided at the left end of the feed pipe (2). A connecting pipe (4) is provided on one side of the rotary joint (3). A movable plate (9) is slidably connected inside the kiln body (1). The movable plate (9) is elliptical in shape. Push plates (11) are provided at both the upper and lower ends of the movable plate (9). Rotation mechanisms for rotating the push plates (11) are provided at both the upper and lower ends of the movable plate (9). A moving mechanism for moving the movable plate (9) is provided on the left side of the kiln body (1).

2. The rotary kiln material feeding device according to claim 1, characterized in that, The rotating mechanism includes grooves (10) formed at the upper and lower ends of the movable plate (9), a rotating shaft (12) is rotatably connected in the grooves (10), and the push plate (11) is set on the outer wall of the rotating shaft (12).

3. The rotary kiln material feeding device according to claim 2, characterized in that, The moving mechanism includes multiple symmetrically arranged rotating rods (5) that are rotatably connected to the left side wall of the kiln body (1). The outer walls of the multiple rotating rods (5) are provided with reciprocating screw areas (13), and the outer walls of the multiple reciprocating screw areas (13) are provided with screw sleeves (14). The multiple screw sleeves (14) pass through the moving plate (9) and are fixedly connected to it.

4. The rotary kiln material feeding device according to claim 3, characterized in that, The moving plate (9) is provided with a cylinder (8) through it, and multiple rotating rods (5) pass through both sides of the cylinder (8) and are slidably connected to it.

5. The rotary kiln material feeding device according to claim 4, characterized in that, Multiple limiting rods (15) are provided between the inner walls on both sides of the cylinder (8). The multiple limiting rods (15) pass through multiple lead screw sleeves (14) and are slidably connected to them.

6. The rotary kiln material feeding device according to claim 5, characterized in that, The outer walls of the multiple rotating rods (5) are provided with gears (6), and the outer walls of the connecting pipe (4) are provided with toothed rings (7), which mesh with the multiple gears (6).

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