Feeding device of rare earth carbonate firing kiln

Abstract

The utility model provides a rare earth carbonate firing kiln feeding device which comprises a driver and a push plate connected with the driver, the driver drives the push plate to move back and forth along a feeding pipe, and a feeding port is formed in the upper wall of the feeding pipe and communicated with a feeding bin; the push plate comprises side plates parallel to the wall of the feeding pipe and a main push plate arranged in the feeding pipe, and the side plates are connected with one another; the side plate moves back and forth to open and close the feeding port, and the main push plate moves back and forth to push rare earth carbonate to be fed into the kiln.

Description

Technical Field

[0001] The utility model relates to the field of preparation of rare earth carbonate, in particular to a feeding device for a rare earth carbonate calcination kiln furnace. Background Art

[0002] At present, the kiln furnace feeding systems in the industry basically adopt screw conveying and positive pressure pneumatic conveying. Both have common characteristics and are suitable for the conveying of dry powder materials. The screw conveying device is used more frequently. When the water content of the feed is relatively high (50% - 60%) or the particle size is relatively small, it is easy to produce a slipping phenomenon, resulting in the screw idling and the feed unable to be conveyed along with the screw. Positive pressure pneumatic conveying is also not suitable for powder materials with a relatively high water content. Summary of the Utility Model

[0003] The problem to be solved by the utility model is to provide a feeding device for a rare earth carbonate calcination kiln furnace, which can convey powder materials with a relatively high water content, effectively avoid the idling phenomenon of traditional screw feeding, has a simple structure and a low manufacturing cost.

[0004] To solve the above technical problems, the utility model provides a feeding device for a rare earth carbonate calcination kiln furnace, which includes a driver and a push plate connected to the driver. The driver drives the push plate to move back and forth along the feeding pipe. The upper wall of the feeding pipe is provided with a feeding port and is communicated with a feeding bin; the push plate includes side plates parallel to the feeding pipe wall and a main push plate arranged inside the feeding pipe, and the side plates are connected to each other; the side plates move back and forth to open and close the feeding port, and the main push plate moves back and forth to push the rare earth carbonate for feeding into the kiln furnace.

[0005] In some embodiments, the front end of the driver is connected to the main push plate.

[0006] In some embodiments, a baffle parallel to the main push plate is connected below the main push plate. The baffle has a rotational freedom of rotating along a first direction and cannot rotate along a second direction, and the first direction and the second direction are opposite; when the baffle rotates along the first direction, it can rotate from below the main push plate to coincide with the main push plate.

[0007] In some embodiments, the feeding pipe has an inclination angle with the horizontal plane.

[0008] In some embodiments, the feeding bin is a hopper.

[0009] In some embodiments, guide wheels are connected to both ends in the width direction of the side plates so that the push plate moves linearly along the feeding pipe.

[0010] In some embodiments, the driver is a cylinder.

[0011] In some of these embodiments, an electromagnetic valve is further included, and the electromagnetic valve is used to control the movement direction and movement time of the cylinder.

[0012] In some of these embodiments, an infrared limiter is further included, and the infrared limiter is electrically connected to the electromagnetic valve and transmits a signal to the electromagnetic valve to control the movement of the cylinder.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows: by providing a driver and a push plate, the driver is used to push the push plate to move back and forth in the feed pipe to push the rare earth carbonate into the kiln; when the driver drives the push plate to move backward, the side plate opens the feed port, and the rare earth carbonate raw material enters the feed pipe. When the driver drives the push plate to move forward, the main push plate pushes the rare earth carbonate into the kiln, which can avoid the situation of traditional spiral feeding idling and resulting in no feeding, and is applicable to the feeding of powders with high water content and small particle size. Description of the Drawings

[0014] Figure 1 It is the assembly layout diagram of the feeding device of the present utility model;

[0015] Figure 2 It is the schematic diagram of the movement track of the feeding device of the present utility model;

[0016] Figure 3 It is the assembly drawing of the feeding device of the present utility model

[0017] Figure 4 It is the top view of the feeding device of the present utility model;

[0018] Figure 5 It is the side view of the guide wheel setting of the present utility model;

[0019] Figure 6 It is the schematic diagram of the main push plate and the baffle.

[0020] 1. Feed pipe; 2. Push plate; 2-1. Main push plate; 2-2. Side plate; 3. Flange; 4. Guide wheel; 5. Baffle; 6. Cylinder. Detailed Embodiments

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model; obviously, the described embodiments are only some of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0022] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by terms such as "upper", "lower", "inner", "outer", "top / bottom end", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0023] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, terms such as "installation", "provided with", "sheathed / connected", "connection", etc. should be understood in a broad sense. For example, "connection" can be a wall-mounted connection, a detachable connection, or an integral connection. It can be a mechanical connection or an electrical connection. It can be directly connected or indirectly connected through an intermediate medium. It can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0024] The present utility model provides a feeding device for a rare earth carbonate roasting kiln, including a feeding pipe 1, a feeding bin, a cylinder 6 as a driver, and a push plate 2. The upper wall of the feeding pipe 1 is provided with a feeding port and is communicated with the feeding bin. The push plate 2 includes a side plate 2-2 parallel to the wall of the feeding pipe 1 and a main push plate 2-1 arranged inside the feeding pipe 1. The side plate 2-2 and the main push plate 2-1 are connected to each other. The connection part of the cylinder 6 is a threaded connection. After the cylinder 6 is connected to a flange 3, it is then connected to the main push plate 2-1 through bolts. When the cylinder 6 drives the main push plate 2-1 to move back and forth along the feeding pipe 1, it also drives the side plate 2-2 to move back and forth. The back-and-forth movement of the side plate 2-2 is used to open and close the feeding port, and the back-and-forth movement of the main push plate 2-1 is used to push the rare earth carbonate into the kiln. It also includes a solenoid valve and an infrared fiber device. The solenoid valve is used to control the forward and backward movement direction and movement time of the cylinder 6. The infrared limiter is electrically connected to the solenoid valve and transmits signals to the solenoid valve to control the movement of the cylinder 6.

[0025] The feeding process includes three stages. In the first stage, the cylinder 6 contracts and the push plate retracts. At this time, the side plate 2-2 follows and retracts, causing the feeding port to open, and feeding starts for about 15 seconds. In the second stage, the cylinder 6 extends, and the main push plate 2-1 pushes the material into the interior of the kiln drum. After the feeding action is completed, it stays for 15 seconds. Meanwhile, the side plate 2-2 closes the feeding port. After the feeding action is completed, the infrared limit switch sends a signal to the solenoid valve to execute the third stage action. The cylinder 6 retracts to the initial position and stays for 2 minutes and 15 seconds, so that the sealing ring of the cylinder 6 is damaged due to being in the high temperature area for a long time. During the feeding process, the solenoid valve is fed back by the signal of the infrared limit switch to ensure the feeding frequency and cooperate with the kiln efficiency to complete the calcination process of rare earth carbonate.

[0026] In order to ensure that the push plate moves linearly along the feeding pipe 1, in this embodiment, guide wheels 4 are connected to both ends of the side plate 2-2 in the width direction.

[0027] In order to reduce the resistance of the cylinder 6 to push, in this embodiment, the feeding pipe 1 has an inclination angle of 15° with the horizontal plane. The feeding pipe 1 is in an inclined state. After the rare earth carbonate enters the feeding pipe 1 from the feeding bin, under the action of its own gravity, it has a downward force along the direction of the feeding pipe 1. Therefore, the resistance of the main push plate 2-1 to push the material can be reduced.

[0028] After the feeding is completed, when the cylinder 6 contracts, in order to prevent the main push plate 2-1 from scraping the raw materials in the feeding pipe 1 when moving backward, in this embodiment, a baffle 5 parallel to it is connected below the main push plate 2-1. The baffle 5 has a rotational freedom of rotating along a first direction, and the baffle 5 cannot rotate along a second direction. The first direction and the second direction are opposite; when the baffle 5 rotates along the first direction, it can rotate from below the main push plate 2-1 to coincide with the main push plate 2-1. In this embodiment, the first direction is the counterclockwise direction, and the second direction is the clockwise direction. When feeding, when the cylinder 6 moves forward, since the baffle 5 can only rotate counterclockwise, at this time, the baffle 5 and the main push plate 2-1 push the raw materials forward together; when the feeding is completed and the cylinder 6 is contracted, the baffle 5 can rotate counterclockwise to coincide with the main push plate 2-1. In this way, when the main push plate 2-1 and the baffle 5 move backward, since the baffle 5 no longer interferes with the lower part of the feeding pipe 1, it can avoid scraping the raw materials. At the same time, if blockage occurs during the feeding process, the baffle 5 can be opened for cleaning.

[0029] The above is only a preferred specific embodiment of the present invention, but the design concept of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, making non-substantive modifications to the present invention using this concept, shall fall within the scope of infringement of the present invention.

Claims

1. A feeding device for a rare earth carbonate roasting kiln, characterized in that, It includes a driver and a push plate connected to the driver. The driver drives the push plate to move back and forth along the feed pipe. The upper wall of the feed pipe is provided with a feed inlet and is communicated with a feed bin; the push plate includes side plates parallel to the feed pipe wall and a main push plate arranged inside the feed pipe, and the side plates are connected to each other; the side plates move back and forth to open and close the feed inlet, and the main push plate moves back and forth to push the rare earth carbonate into the kiln.

2. The rare earth carbonate roasting furnace feeding device according to claim 1, wherein The front end of the driver is connected to the main push plate.

3. The rare earth carbonate roasting furnace feeding device according to claim 1, characterized in that, A baffle parallel to it is connected below the main push plate. The baffle has a rotational freedom of rotating along a first direction and cannot rotate along a second direction, and the first direction and the second direction are opposite; when the baffle rotates along the first direction, it can rotate from below the main push plate to coincide with the main push plate.

4. The rare earth carbonate roasting furnace feeding device according to claim 1, characterized in that, The feed pipe has an inclination angle with the horizontal plane.

5. The rare earth carbonate roasting furnace feeding device according to claim 1, wherein The feed bin is a hopper.

6. The rare earth carbonate roasting furnace feeding device according to claim 1, characterized in that Guide wheels are connected to both ends of the side plate in the width direction so that the push plate moves linearly along the feed pipe.

7. The rare earth carbonate roasting kiln feeding device according to any one of claims 1-6, characterized in that, The driver is a cylinder.

8. The rare earth carbonate calcination furnace feeding device according to claim 7, characterized in that, It further includes an electromagnetic valve, and the electromagnetic valve is used to control the movement direction and movement time of the cylinder.

9. The rare earth carbonate calcination furnace feeding device according to claim 8, characterized in that, It further includes an infrared limiter, and the infrared limiter is electrically connected to the electromagnetic valve and transmits a signal to the electromagnetic valve to control the movement of the cylinder.

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