Closed dustproof discharging device for vertical calcining kiln

Abstract

The utility model discloses a sealed dustproof discharger for a vertical calcining kiln, which comprises a shaft kiln, a split blanking plate is mounted at the bottom of the shaft kiln, a discharge port of the blanking plate is provided with a discharger communicated with the blanking plate, the discharger comprises a crusher, a rotating shaft, an auger, a motor and a sealed bin, and the sealed bin is mounted at the discharge end of the shaft kiln. The rotating shaft is rotationally installed in the closed bin, the crusher and the auger are sequentially installed on the rotating shaft from top to bottom and located in the feeding end and the discharging end of the closed bin respectively, and the power output end of the motor is connected with the outer end of the rotating shaft. According to the discharging device, firstly, the closed bin is communicated with an outlet in the bottom of the shaft kiln, a closed discharging environment is formed, the working environment is prevented from being influenced, then the material crusher and the auger are jointly driven by the rotating shaft to rotate at the same time, and during discharging, large or caked materials can be crushed, refined materials can conveniently and smoothly enter the auger, and discharging is stable.

Description

Technical Field

[0001] The utility model relates to the technical field of kiln discharge devices, in particular to a sealed dust-proof discharge device for a vertical calcination kiln. Background Art

[0002] The vertical calcination kiln (hereinafter uniformly referred to as the shaft kiln) is a common lime kiln. During the calcination operation, the feeding and discharging method of top-in and bottom-out is adopted. When discharging materials at the lower part of the shaft kiln, an opening-type blanking plate is usually used to control the falling of materials, and it is in an open environment. Therefore, when high-temperature and dry materials are discharged, the dust is very large, and generally, dust collection equipment needs to be equipped for dust collection. However, affected by the open working environment, the dust collection effect of this kind of dust collection equipment is extremely limited, and it is very difficult to achieve an effective dust reduction effect. Content of the Utility Model

[0003] The purpose of the utility model is to provide a sealed dust-proof discharge device for a vertical calcination kiln, so as to solve the problems that the bottom of a general shaft kiln adopts an open blanking method, with a large amount of dust and extremely limited dust collection effect.

[0004] To solve the above technical problems, the utility model adopts the following technical solutions:

[0005] A sealed dust-proof discharge device for a vertical calcination kiln includes a shaft kiln. A pair of opening-type blanking plates are installed at the bottom of the shaft kiln. A discharge device communicated with the discharge port of the blanking plate is provided. The discharge device includes a material crusher, a rotating shaft, a screw conveyor, a motor and a sealed bin. The sealed bin is installed at the discharge end of the shaft kiln. The rotating shaft is rotatably installed in the sealed bin. The material crusher and the screw conveyor are sequentially installed on the rotating shaft from top to bottom, and the material crusher and the screw conveyor are respectively located in the feeding end and the discharge end of the sealed bin. The power output end of the motor is connected to the outer end of the rotating shaft.

[0006] A further technical solution is that a bent pipe is provided at the discharge end of the sealed bin, and the discharge end of the screw conveyor is communicated with the bent pipe.

[0007] A further technical solution is that the material crusher includes a arch-breaking head, a framework and crushing teeth. The arch-breaking head is installed at the top end of the rotating shaft. The framework is connected with the arch-breaking head. A plurality of the crushing teeth are uniformly arranged and installed upward on the upper surface of the framework.

[0008] A further technical solution is that a plurality of flow dividing plates are uniformly installed on the framework.

[0009] A further technical solution is that the flow dividing plates are arranged with the top converging towards the arch-breaking head.

[0010] A further technical solution is that the crushing teeth are Y-shaped.

[0011] A further technical solution is that a temporary storage cavity is arranged in the middle of the sealed bin.

[0012] Compared with the prior art, at least one of the following beneficial effects can be achieved by the present utility model:

[0013] The present utility model provides a sealed dust-proof discharging device for a vertical calcining kiln. Firstly, the discharging device relies on the connection between the sealed bin and the bottom outlet of the vertical kiln to form a sealed discharging environment, avoiding affecting the working environment. Then, the crusher and the auger are simultaneously driven to rotate by the rotating shaft. When discharging materials, larger or agglomerated materials can be broken, facilitating the smooth entry of refined materials into the auger and ensuring stable discharging. Description of the Drawings

[0014] Figure 1 It is a schematic structural diagram of a sealed dust-proof discharging device for a vertical calcining kiln according to the present utility model.

[0015] Figure 2 For the present utility model Figure 1 It is a schematic structural diagram of the crusher in the present utility model.

[0016] Figure 3 For the present utility model Figure 2 It is a schematic structural diagram of the framework in the present utility model.

[0017] Reference numerals: 1, vertical kiln; 2, blanking plate; 3, discharging device; 4, crusher; 5, rotating shaft; 6, auger; 7, motor; 8, sealed bin; 9, elbow pipe; 10, arch breaking head; 11, framework; 12, crushing teeth; 13, shunt plate. Specific Embodiments

[0018] To make the purpose, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of the embodiments. Usually, the components of the embodiments of the present utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0019] Therefore, the following detailed description of the embodiments of the present utility model provided in the drawings is not intended to limit the scope of the present utility model to be protected, but merely represents the selected embodiments of the present utility model. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.

[0020] It should be noted that, without conflict, the embodiments in the present utility model and the features in the embodiments can be combined with each other.

[0021] It should be noted that like reference numerals and letters refer to like items in the following figures. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0022] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present utility model is habitually placed during use, or the orientation or positional relationship commonly understood by those skilled in the art. 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, and therefore should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0023] In the description of the present utility model, it should also be noted that unless otherwise clearly specified and defined, the terms "set", "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed 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, and 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. Embodiment 1:

[0024] As shown in this embodiment Figure 1 、 Figure 2 and Figure 3 A hermetically sealed dust-proof discharge device for a vertical calcination kiln includes a vertical kiln 1. A split-type blanking plate 2 is installed at the bottom of the vertical kiln 1. A discharge device 3 communicated with the blanking plate 2 is arranged at the discharge port of the blanking plate 2. The discharge device 3 includes a crushing device 4, a rotating shaft 5, a screw conveyor 6, a motor 7 and a sealed bin 8. The sealed bin 8 is installed at the discharge end of the vertical kiln 1. The rotating shaft 5 is rotatably installed in the sealed bin 8. The crushing device 4 and the screw conveyor 6 are installed on the rotating shaft 5 in sequence from top to bottom, and the crushing device 4 and the screw conveyor 6 are respectively located inside the feed end and the discharge end of the sealed bin 8. The power output end of the motor 7 is connected to the outer end of the rotating shaft 5.

[0025] The motor 7 drives the crushing device 4 and the screw conveyor 6 to rotate simultaneously in the sealed bin 8 through the rotating shaft 5. After the blanking plate 2 is opened, the material falls into the crushing device 4 and is crushed by it to form uniformly refined material. Then it falls into the sealed bin 8 for temporary storage and is stably discharged to the outside by the screw conveyor 6. The discharge is stable and the dust is extremely small.

[0026] Preferably, a bent pipe 9 is provided at the discharge end of the sealed bin 8, and the discharge end of the auger 6 communicates with the bent pipe 9.

[0027] The bent pipe 9 is used to avoid the connection between the rotating shaft 5 and the motor 7, and at the same time buffer the feeding to prevent excessive dust caused by the directly falling materials. Embodiment 2:

[0028] Based on the above embodiment, in this embodiment, as Figure 2 shown, the shredder 4 includes a arch-breaking head 10, a skeleton 11 and crushing teeth 12. The arch-breaking head 10 is installed at the top of the rotating shaft 5, the skeleton 11 is connected to the arch-breaking head 10, and a plurality of crushing teeth 12 are evenly arranged and upwardly installed on the upper surface of the skeleton 11.

[0029] After the feeding plate 2 is opened, if too much material is fed instantaneously, it may cause accumulation and blockage between the feeding plate 2 and the sealed bin 8 (shredder 4). The arch-breaking head 10 can break up the accumulation upward, and when rotating, the crushing teeth 12 will stir and crush the materials, achieving the effect of uniformly refining the materials.

[0030] Preferably, a plurality of flow dividing plates 13 are evenly installed on the skeleton 11. The flow dividing plates 13 are arranged with their tops converging towards the arch-breaking head 10.

[0031] The flow dividing plate 13 is a sheet-shaped circular ring plate, with the lower part inclined outward, and is used to evenly divide the shredded and refined materials into the sealed bin 8 for temporary storage and material discharge.

[0032] Preferably, the crushing teeth 12 are Y-shaped.

[0033] Preferably, a temporary storage cavity is provided in the middle of the sealed bin 8.

[0034] Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A closed dust-proof discharge device for a vertical calcination kiln, comprising a vertical kiln (1), wherein an opening-type blanking plate (2) is installed at the bottom of the vertical kiln (1), and it is characterized in that: An outlet of the blanking plate (2) is provided with a discharger (3) communicated therewith. The discharger (3) includes a material crusher (4), a rotating shaft (5), an auger (6), a motor (7) and a closed bin (8). The closed bin (8) is installed at the discharging end of the vertical kiln (1). The rotating shaft (5) is rotatably installed in the closed bin (8). The material crusher (4) and the auger (6) are sequentially installed on the rotating shaft (5) from top to bottom, and the material crusher (4) and the auger (6) are respectively located in the feeding end and the discharging end of the closed bin (8). A power output end of the motor (7) is connected to an outer end of the rotating shaft (5).

2. The sealed dust-proof discharging device for the vertical calcining kiln according to claim 1, wherein: A bent pipe (9) is provided at the discharging end of the closed bin (8). A discharging end of the auger (6) is communicated with the bent pipe (9).

3. The sealed dust-proof discharge device for the vertical calcination kiln according to claim 1, wherein: The material crusher (4) includes an arch breaking head (10), a framework (11) and crushing teeth (12). The arch breaking head (10) is installed at the top end of the rotating shaft (5). The framework (11) is connected to the arch breaking head (10). A plurality of the crushing teeth (12) are uniformly arranged and installed upward on an upper surface of the framework (11).

4. The hermetically dust-proof discharge device for the vertical calcination kiln according to claim 3, characterized in that: A plurality of flow dividing plates (13) are uniformly installed on the framework (11).

5. The closed dust-proof discharging device for the vertical calcination kiln according to claim 4, characterized in that: The flow dividing plates (13) are arranged and the tops thereof converge towards the arch breaking head (10).

6. The hermetically dust-proof discharge device for the vertical calcination kiln according to claim 3, characterized in that: The crushing teeth (12) are Y-shaped.

7. The closed dust-proof discharge device for the vertical calcination kiln according to claim 1, wherein: A temporary storage cavity is provided in the middle of the closed bin (8).

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