Crushing device for fluorescent powder production

Abstract

The utility model belongs to the technical field of crushers, and particularly relates to a crushing device for fluorescent powder production, which comprises a barrel, an inner cavity is arranged in the barrel, a feed port communicated with the inner cavity is arranged at the top of the barrel, a horizontal screen is arranged in the inner cavity, and the inner cavity is divided into an upper crushing cavity and a lower grinding cavity by the screen. A rotating shaft penetrating through the crushing cavity and the grinding cavity is arranged at the top of the barrel and comprises a crushing shaft located in the crushing cavity, a plurality of crushing blades are arranged on the crushing shaft, an L-shaped support is arranged on the crushing shaft, and a scrubbing brush and a plurality of nozzles are arranged on the outer side of the support; the brush plate abuts against the inner wall of the smashing cavity and the screen, the smashing shaft and the support are internally provided with an air channel communicated with all the nozzles, the smashing shaft is sleeved with a via hole sliding ring connected with the air channel, the bottom of the grinding cavity is provided with a discharging pipe, and the discharging pipe is provided with a valve. The crushing device effectively solves the problems that a traditional crusher is tedious to clean and fluorescent powder is easy to bond, and the labor cost and the equipment maintenance difficulty are reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of crushers, and particularly relates to a crushing device for fluorescent powder production. Background Art

[0002] In the precise and efficient industrial field of fluorescent powder production, as a core device, the performance and maintenance of the crusher are directly related to the overall efficiency of the production line and the product quality. Although the crushers on the current market have made remarkable progress in crushing effect and processing capacity, they are still insufficient in the internal cleaning link. The traditional method relies on manual cleaning, which is not only cumbersome and time-consuming, increasing labor costs, but also difficult to ensure the thoroughness and timeliness of cleaning.

[0003] Specifically, manual cleaning often requires the production line to stop, which not only interrupts the continuous operation of the production line, but also may cause residual fluorescent powder inside the crusher due to incomplete cleaning. Over time, it gradually adheres to the inner wall, forming a scale layer that is difficult to remove. These scale layers will not only reduce the crushing efficiency, affect the purity and particle size distribution of the fluorescent powder, but also may cause damage to the equipment itself and shorten its service life. Therefore, there is a certain market demand for designing a crushing device for fluorescent powder production. Summary of the Invention

[0004] Aiming at the deficiencies of the above-mentioned existing technologies, the utility model provides a crushing device for fluorescent powder production to solve the above problems.

[0005] A crushing device for fluorescent powder production of the utility model includes a cylinder body, an inner cavity is arranged inside the cylinder body, a feeding port communicating with the inner cavity is arranged at the top of the cylinder body, a horizontal primary screen is arranged in the inner cavity, the screen divides the inner cavity into upper and lower two layers, namely a crushing cavity and a grinding cavity, a rotating shaft passing through the crushing cavity and the grinding cavity is arranged at the top of the cylinder body, and a driving mechanism for driving the rotating shaft to rotate is arranged. The rotating shaft includes a crushing shaft located in the crushing cavity and a grinding shaft located in the grinding cavity. A plurality of crushing blades are arranged on the crushing shaft, a first grinding disc is arranged at the bottom end of the grinding shaft, a guiding slide plate extending and converging towards the top of the first grinding disc is arranged in a circle on the inner wall of the grinding cavity, a grinding frame is arranged in the grinding cavity below the first grinding disc, and a second grinding disc is arranged on the grinding frame;

[0006] An L-shaped bracket is arranged on the crushing shaft, a brush and a plurality of nozzles are arranged on the outer side of the bracket, the brush abuts against the inner wall of the crushing cavity and the screen, an air duct communicating with all the nozzles is arranged inside the crushing shaft and the bracket, a through-hole slip ring connecting the air duct is sleeved on the crushing shaft, a screen is arranged in the grinding cavity below the grinding frame, a discharge pipe is arranged at the bottom of the grinding cavity, and a valve is arranged on the discharge pipe.

[0007] Further, two rows of plate brushes are arranged on the outer side of the bracket, and the spray head is arranged between the two rows of plate brushes.

[0008] Further, a telescopic mechanism is arranged on the grinding frame, and the telescopic end of the telescopic mechanism faces upward and is connected to the bottom of the second grinding disc.

[0009] Further, a plurality of guide rods are arranged on the bottom of the second grinding disc in an axis rotation array, and guide holes corresponding to the guide rods one by one are formed on the grinding frame.

[0010] Further, a bearing is sleeved on the crushing shaft adjacent to the through-hole slip ring, a shaft seat adapted to the bearing is arranged at the top of the cylinder body, and the shaft seat is fixedly connected to the outer ring of the through-hole slip ring.

[0011] Further, a plurality of vibration generators are arranged on the cylinder body, a base is arranged at the bottom of the cylinder body, and a shock absorber is arranged between the base and the cylinder body for connection.

[0012] Further, a hopper is arranged at the feeding port.

[0013] Compared with the prior art, the crushing device effectively solves the problems of cumbersome cleaning and easy adhesion of phosphor powder in the traditional crusher by integrating the functions of crushing, grinding and automatic cleaning, improves the production efficiency and product quality, and reduces the labor cost and the difficulty of equipment maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a front sectional view of the present utility model;

[0015] Figure 2 is a top sectional view of the bracket.

[0016] In the figure: 1, cylinder body; 2, screen; 3, crushing chamber; 4, grinding chamber; 5, drive mechanism; 6, crushing shaft; 7, grinding shaft; 8, crushing blade; 9, first grinding disc; 10, guide slide plate; 11, grinding frame; 12, second grinding disc; 13, bracket; 14, plate brush; 15, spray head; 16, air duct; 17, through-hole slip ring; 18, discharge pipe; 19, valve; 20, telescopic mechanism; 21, guide rod; 22, guide hole; 23, bearing; 24, shaft seat; 25, vibration generator; 26, base; 27, shock absorber; 28, hopper. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] In order to better understand the present utility model, the following is combined with Figures 1 to 2 to explain the embodiments of the present utility model in detail.

[0018] It should be noted that the directions of "front, back, left, right, up, down" described in the text are all based on Figure 1It is based on the "front, back, left, right, up, and down" directions.

[0019] A pulverizing device for producing phosphor of the present utility model includes a cylinder body 1 which is provided with an inner cavity. The inner cavity is divided into an upper pulverizing chamber 3 and a lower grinding chamber 4 by a horizontal screen 2. The top of the cylinder body 1 is provided with a feeding port for feeding the phosphor raw material to be pulverized, and a hopper 28 is additionally installed at the feeding port to facilitate the smooth introduction of the raw material and reduce dust flying.

[0020] A rotating shaft passing through the pulverizing chamber 3 and the grinding chamber 4 is arranged at the top of the cylinder body 1, and a driving mechanism 5 for driving the rotating shaft to rotate is arranged. The rotating shaft includes a pulverizing shaft 6 located in the pulverizing chamber 3 and a grinding shaft 7 located in the grinding chamber 4. A plurality of crushing blades 8 are installed on the pulverizing shaft 6 and are driven to rotate by the driving mechanism 5 (such as a motor) to achieve the preliminary crushing of the phosphor. The crushed phosphor particles fall into the lower grinding chamber 4 through the screen 2.

[0021] Inside the grinding chamber 4, a first grinding disc 9 (prior art) is fixed at the bottom of the pulverizing shaft 6. The inner wall of the grinding chamber 4 is designed with a circle of guiding sliding plates 10 which extend towards the top of the first grinding disc 9 and converge to form a guiding effect on the phosphor particles. Below the grinding shaft 7, a grinding frame 11 is arranged, and a second grinding disc 12 (prior art) is installed on the grinding frame 11. The second grinding disc 12 is connected to the grinding frame 11 through a telescopic mechanism 20 (such as a cylinder or an electric push rod) and can be adjusted up and down to adapt to the grinding requirements of different particle sizes. The cooperation design of the guiding rod 21 and the guiding hole 22 ensures the stability and accuracy of the second grinding disc 12 during the adjustment process.

[0022] An outlet pipe 18 is arranged at the bottom of the grinding chamber 4, and a valve 19 is installed thereon to control the discharge of the phosphor. When the grinding reaches the set requirements, opening the valve 19 can achieve the continuous discharge of the product.

[0023] To solve the cleaning problem of the traditional pulverizing device, an L-shaped bracket 13 is specially arranged on the pulverizing shaft 6. Two rows of brush plates 14 are installed on the outer side of the bracket 13, and a number of spray heads 15 are arranged in an interspersed manner. The brush plates 14 are closely attached to the inner wall of the pulverizing chamber 3 and the surface of the screen 2, and automatically clean the phosphor attached to the wall surface and the screen 2 as the pulverizing shaft 6 rotates. The spray heads 15 obtain the gas source (which can be inert gas such as compressed air or nitrogen) through an air duct 16 connected inside the pulverizing shaft 6 to blow the pulverizing chamber 3 to further remove the residues. The air duct 16 is connected to the inside of the pulverizing shaft 6 through a through-hole slip ring 17 to ensure the smooth supply of gas.

[0024] To improve the stability of the device and the cleaning effect, a base 26 is provided at the bottom of the cylinder body 1, and the base 26 is connected to the cylinder body 1 by a number of shock absorbers 27, effectively reducing the vibration during the operation of the device. In addition, a number of vibration generators 25 are installed on the cylinder body 1 and can be started when needed to help the phosphor particles distribute more evenly in the grinding chamber 4 through slight vibration and assist in the cleaning operation at the same time.

[0025] The usage method and principle of the present utility model:

[0026] First, the phosphor raw material to be crushed is put into the feeding port through the hopper 28. Then, the driving mechanism 5 is started to make the rotating shafts (the crushing shaft 6 and the grinding shaft 7) start to rotate, and the crushing blades 8 conduct preliminary crushing on the raw material. Next, the crushed phosphor particles enter the grinding chamber 4 through the sieve 2 and are further ground between the first grinding disc 9 and the second grinding disc 12. While the driving mechanism 5 drives the rotating shafts to rotate, the plate brush 14 and the nozzle 15 rotate with the crushing shaft 6 to automatically clean the residues on the inner wall of the crushing chamber 3 and the sieve 2. According to the need, the vibration generator 25 can be turned on to assist in cleaning and grinding during both the production and cleaning processes. Finally, when the grinding reaches the set requirements, the valve 19 on the discharge pipe 18 is opened to discharge the finished phosphor.

[0027] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and 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 the description of the present utility model, unless otherwise specified and defined, it should be noted that the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a mechanical connection or an electrical connection, or it can be the communication inside two elements. It can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific situations.

[0028] The above is only the preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A pulverizing device for phosphor production, characterized in that: It includes a cylinder body (1) with an inner cavity provided therein. At the top of the cylinder body (1), there is a feed inlet communicating with the inner cavity. A horizontal primary screen (2) is provided in the inner cavity, and the screen (2) divides the inner cavity into upper and lower two layers, namely a crushing cavity (3) and a grinding cavity (4). At the top of the cylinder body (1), there is a rotating shaft passing through the crushing cavity (3) and the grinding cavity (4), and a driving mechanism (5) for driving the rotating shaft to rotate is provided. The rotating shaft includes a crushing shaft (6) located in the crushing cavity (3) and a grinding shaft (7) located in the grinding cavity (4). A number of crushing blades (8) are provided on the crushing shaft (6). At the bottom end of the grinding shaft (7), there is a first grinding disc (9). A circle of guiding slide plates (10) extending towards the top of the first grinding disc (9) and converging is provided on the inner wall of the grinding cavity (4). A grinding frame (11) is provided in the grinding cavity (4) below the first grinding disc (9), and a second grinding disc (12) is provided on the grinding frame (11). An L-shaped bracket (13) is provided on the crushing shaft (6). A plate brush (14) and a number of spray nozzles (15) are provided on the outer side of the bracket (13). The plate brush (14) abuts against the inner wall of the crushing cavity (3) and the screen (2). An air duct (16) communicating with all the spray nozzles (15) is provided in the crushing shaft (6) and the bracket (13). A through-hole slip ring (17) connecting the air duct (16) is sleeved on the crushing shaft (6). A screen (2) is provided in the grinding cavity (4) below the grinding frame (11). An outlet pipe (18) is provided at the bottom of the grinding cavity (4), and a valve (19) is provided on the outlet pipe (18).

2. A pulverizing device for producing phosphor as described in claim 1, characterized in that: Two rows of the plate brushes (14) are provided on the outer side of the bracket (13), and the spray nozzles (15) are provided between the two rows of plate brushes (14).

3. A pulverizing device for producing phosphor as described in claim 1, characterized in that: A telescopic mechanism (20) is provided on the grinding frame (11), and the telescopic end of the telescopic mechanism (20) faces upwards and is connected to the bottom of the second grinding disc (12).

4. A pulverizing device for producing phosphor as described in claim 3, characterized in that: A number of guiding rods (21) are arranged in a rotation array with the axis at the bottom of the second grinding disc (12), and guiding holes (22) corresponding to the guiding rods (21) one by one are formed on the grinding frame (11).

5. A pulverizing device for producing phosphor as described in claim 1, characterized in that: A bearing (23) adjacent to the through-hole slip ring (17) is sleeved on the crushing shaft (6). A shaft seat (24) adapted to the bearing (23) is provided at the top of the cylinder body (1), and the shaft seat (24) is fixedly connected to the outer ring of the through-hole slip ring (17).

6. A pulverizing device for producing phosphor as described in claim 1, characterized in that: A number of vibration generators (25) are provided on the cylinder body (1). A base (26) is provided at the bottom of the cylinder body (1), and a shock absorber (27) is provided between the base (26) and the cylinder body (1) for connection.

7. A pulverizing device for producing phosphor as described in claim 1, characterized in that: A hopper (28) is provided at the feed inlet.

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