Flame retardant powder screening device

Abstract

The utility model discloses a flame retardant powder screening device which comprises a screening box, a coarse filtering frame is installed in the screening box, a fine filtering frame is arranged below the coarse filtering frame, connecting shafts are arranged on the two side walls of the coarse filtering frame and the two side walls of the fine filtering frame, synchronous wheels are fixed to one set of connecting shafts, and the other set of connecting shafts are fixed to the other set of connecting shafts. A synchronous belt is arranged between the two sets of synchronous wheels in a sleeved mode, a servo motor is fixed to one side wall of the screening box, baffles are installed at one end of the rough filtering frame and one end of the fine filtering frame, and driving motors are connected to the baffles. The screening device has the advantages that the servo motor, the connecting shaft, the synchronous belt and the synchronous wheel are arranged, in the screening process, the servo motor drives the synchronous wheel to rotate back and forth at a certain angle through the connecting shaft, the synchronous wheel can drive the rough filtering frame and the fine filtering frame to swing back and forth within a certain range through the synchronous belt, and then the screening efficiency is improved; meanwhile, impurity accumulation is avoided, the screening effect is guaranteed, and the use performance of the device is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to fire -retardant production equipment technical field, concretely relates to a fire -retardant powder screening device. BACKGROUND

[0002] In the production process of hydroxide flame retardant, magnesium hydroxide flame retardant (hereinafter referred to as flame retardant) will form the material commonly known as sieve residue in the modification process, and the sieve residue will affect the quality of finished products, resulting in the decrease of finished product qualification rate, so it is necessary to remove the sieve residue from the flame retardant to ensure the quality of the flame retardant.

[0003] The existing fire -retardant powder screening device is through setting up multiple groups of inclined filter screen to screen the impurities in the fire -retardant powder in the use process, and the above-mentioned mode will cause a large amount of fire -retardant powder to be left in the lowest end of the filter screen in the screening process, and these fire -retardant powder will be discharged together with the impurities, causing waste, and further leading to the poor screening effect of the device, affecting the use effect of the device, therefore, a fire -retardant powder screening device is urgently needed to solve the above-mentioned problems. UTILITY MODEL CONTENTS

[0004] (I) technical problem to be solved

[0005] The technical problem to be solved by the utility model is that the existing fire -retardant powder screening device has good screening effect and high use performance.

[0006] (II) technical scheme

[0007] The utility model discloses a fire -retardant powder screening device, including the screening box, the coarse filter frame is installed in the screening box, the fine filter frame is arranged under the coarse filter frame, the both sides wall of coarse filter frame and fine filter frame all is provided with connecting shaft, and one group of connecting shaft is fixed with synchronous wheel, and the synchronous belt is set up between two groups of synchronous wheels, the one side wall of screening box is fixed with servo motor, and the one end of coarse filter frame and fine filter frame all is installed with baffle, and the baffle is connected with drive motor.

[0008] Further, the coarse filter frame and the fine filter frame are rotatably installed in the screening box through the connecting shaft.

[0009] By adopting the above technical scheme, the coarse filter frame can coarsely filter the fire -retardant powder, and the fine filter frame can finely filter the fire -retardant powder.

[0010] Further, the synchronous wheel is fixed on the connecting shaft, and the synchronous belt is engaged with the synchronous wheel.

[0011] By adopting the technical scheme, the synchronous wheel can drive the coarse filter frame and the fine filter frame to swing back and forth within a certain range through the synchronous belt, thereby accelerating the screening efficiency, and avoiding impurity accumulation to ensure the screening effect.

[0012] Further, the servo motor is fixed on the outer side wall of the screening box through bolts, and the output shaft of the servo motor is fixedly connected with the connecting shaft.

[0013] By adopting the technical scheme, the servo motor drives the synchronous wheel to rotate back and forth within a certain angle through the connecting shaft, and the angle sensor can detect the rotation angle of the servo motor.

[0014] Further, the baffle is rotatably installed in the coarse filter frame and the fine filter frame, and the output shaft of the driving motor is fixedly connected with the baffle.

[0015] By adopting the technical scheme, during the impurity removal process, the driving motor drives the baffle to tilt, and the servo motor is further used to make the coarse filter frame and the fine filter frame be in a tilted state, so that the impurities can be removed conveniently.

[0016] Further, the inner bottom end of the screening box is fixedly provided with a guide plate arranged in a tilted manner, and the upper end of the screening box is fixedly provided with a feeding hopper.

[0017] By adopting the technical scheme, the screened flame retardant powder is discharged and collected through the guide plate, and the flame retardant powder is injected into the coarse filter frame through the feeding hopper

[0018] Further, an operation panel is installed above the servo motor, and the operation panel is electrically connected with the servo motor and the driving motor.

[0019] By adopting the technical scheme, the operation panel controls the operation of the device.

[0020] Further, material guide cavities are formed in the two side walls of the screening box, and the size of the material guide cavities is greater than that of the coarse filter frame and the fine filter frame.

[0021] By adopting the technical scheme, the material guide cavities can provide through space for the free end of the baffle.

[0022] (Three) beneficial effects

[0023] Compared with the prior art, the utility model has the following beneficial effects:

[0024] In order to solve the existing flame retardant powder screening device in the process of using is through setting up multiple groups of inclined filter screen to the impurities in the flame retardant powder is screened, the above-mentioned mode in the screening process, because the filter screen is fixed and cannot be adjusted, and then there is in the lowest end of the filter screen will remain a large amount of flame retardant powder, these flame retardant powder will follow the impurities together with the discharge, cause waste, and lead to the screening effect of the device is poor, affect the use effect of the device, the utility model discloses a servo motor, connecting shaft, synchronous belt and synchronous wheel are set, in the screening process, servo motor drives synchronous wheel to rotate back and forth at a certain angle, the synchronous wheel can drive the coarse filter frame and the fine filter frame to swing back and forth in a certain range, and then the screening efficiency is accelerated, at the same time, the impurity accumulation is avoided, the screening effect is guaranteed, and the use performance of the device is improved. BRIEF DESCRIPTION OF DRAWINGS

[0025] Fig. 1 It is the structural schematic diagram of the flame retardant powder screening device of the utility model;

[0026] Fig. 2 It is the main sectional view of the screening box in the flame retardant powder screening device of the utility model;

[0027] Fig. 3 It is the structural schematic diagram of the fine filter frame in the flame retardant powder screening device of the utility model.

[0028] The attached drawings are explained as follows:

[0029] 1, screening box, 2, feeding hopper, 3, servo motor, 4, operation panel, 5, deflector, 6, material guiding cavity, 7, coarse filter frame, 8, fine filter frame, 9, connecting shaft, 10, synchronous belt, 11, synchronous wheel, 12, baffle, 13, driving motor. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical scheme and advantages of the utility model more clear and obvious, the utility model is further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the utility model, and are not used to limit the utility model.

[0031] As Figs. 1-3As shown, the flame retardant powder screening device in the embodiment includes a screening box 1, a coarse filter frame 7 is installed in the screening box 1, a fine filter frame 8 is arranged below the coarse filter frame 7, the coarse filter frame 7 can coarsely filter the flame retardant powder, the fine filter frame 8 can finely filter the flame retardant powder, a connecting shaft 9 is arranged on each side wall of the coarse filter frame 7 and the fine filter frame 8, a synchronous wheel 11 is fixed on one group of connecting shafts 9, a synchronous belt 10 is sleeved between the two groups of synchronous wheels 11, the synchronous wheel 11 can drive the coarse filter frame 7 and the fine filter frame 8 to swing back and forth within a certain range through the synchronous belt 10, thereby accelerating the screening efficiency, and also avoiding impurity accumulation, ensuring the screening effect, a servo motor 3 is fixed on one side wall of the screening box 1, the servo motor 3 drives the synchronous wheel 11 to rotate back and forth at a certain angle through the connecting shaft 9, an angle sensor can detect the rotation angle of the servo motor 3, a baffle 12 is installed at one end of the coarse filter frame 7 and the fine filter frame 8, and a driving motor 13 is connected to the baffle 12, during the impurity removal process, the driving motor 13 drives the baffle 12 to tilt, and at the same time, the servo motor 3 is used to make the coarse filter frame 7 and the fine filter frame 8 in a tilted state, which can facilitate impurity removal.

[0032] As shown in the figure, Figs. 1-3 In the embodiment, the coarse filter frame 7 and the fine filter frame 8 are rotatably installed in the screening box 1 through the connecting shaft 9, the synchronous wheel 11 is fixed on the connecting shaft 9, the synchronous belt 10 is engaged with the synchronous wheel 11, the servo motor 3 is built-in with an angle sensor, the servo motor 3 is fixed on the outer side wall of the screening box 1 through bolts, the output shaft of the servo motor 3 is fixedly connected with the connecting shaft 9, and the baffle 12 is rotatably installed in the coarse filter frame 7 and the fine filter frame 8, and the output shaft of the driving motor 13 is fixedly connected with the baffle 12.

[0033] As shown in the figure, Figs. 1-3 In the embodiment, the bottom end of the screening box 1 is fixedly provided with a guide plate 5, the upper end of the screening box 1 is fixedly provided with a feeding hopper 2, the screened flame retardant powder is discharged and collected through the guide plate 5, the flame retardant powder is injected into the coarse filter frame 7 through the feeding hopper 2, an operation panel 4 is installed above the servo motor 3, the operation panel 4 is electrically connected with the servo motor 3 and the driving motor 13, the operation panel 4 controls the work of the device, guide cavities 6 are formed in the two side walls of the screening box 1, the specifications of the guide cavities 6 are greater than those of the coarse filter frame 7 and the fine filter frame 8, and the guide cavities 6 can provide a through space for the free end of the baffle 12.

[0034] The specific implementation process of the embodiment is as follows: in use, the external power supply is turned on, the flame retardant powder is injected into the coarse filter frame 7 through the injection hopper 2, the coarse filter frame 7 can coarsely filter the flame retardant powder, and the fine filter frame 8 can finely filter the flame retardant powder; during the screening process, the servo motor 3 drives the synchronous wheel 11 to rotate back and forth at a certain angle through the connecting shaft 9; the synchronous wheel 11 can drive the coarse filter frame 7 and the fine filter frame 8 to swing back and forth within a certain range through the synchronous belt 10, thereby speeding up the screening efficiency, avoiding impurity accumulation, ensuring the screening effect, and discharging the screened flame retardant powder through the guide plate 5 for collection; when it is necessary to discharge impurities, the driving motor 13 drives the baffle 12 to tilt and pass through the material guiding cavity 6, and at the same time, the servo motor 3 is further matched to make the coarse filter frame 7 and the fine filter frame 8 in an inclined state, so that the impurities can be conveniently discharged.

[0035] The above description of the disclosed embodiments enables a person skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A flame retardant powder screening device, characterized by: Including screening box (1), the coarse filter frame (7) is installed in screening box (1), the fine filter frame (8) is arranged below the coarse filter frame (7), the connecting shaft (9) is arranged on the side wall of the coarse filter frame (7) and the fine filter frame (8), one group of the connecting shaft (9) is fixed with synchronous wheel (11), the synchronous belt (10) is sleeved between two groups of the synchronous wheel (11), the servo motor (3) is fixed on the side wall of the screening box (1), the baffle (12) is installed at one end of the coarse filter frame (7) and the fine filter frame (8), the driving motor (13) is connected to the baffle (12).

2. A flame retardant powder screening device according to claim 1, characterized in that: The coarse filter frame (7) and the fine filter frame (8) are rotatably installed in the screening box (1) by the connecting shaft (9).

3. A flame retardant powder screening device according to claim 1, characterized in that: The synchronous wheel (11) is fixed on the connecting shaft (9), and the synchronous belt (10) is engaged with the synchronous wheel (11).

4. A flame retardant powder screening device according to claim 1, characterized in that: The servo motor (3) is provided with an angle sensor, and the servo motor (3) is fixed on the outer side wall of the screening box (1) by bolts, and the output shaft of the servo motor (3) is fixedly connected with the connecting shaft (9).

5. A flame retardant powder screening device according to claim 4, characterized in that: The baffle (12) is rotatably installed in the coarse filter frame (7) and the fine filter frame (8), and the output shaft of the driving motor (13) is fixedly connected with the baffle (12).

6. A flame retardant powder screening device according to claim 5, characterized in that: The bottom end of the screening box (1) is fixedly provided with an inclined guide plate (5), and the upper end of the screening box (1) is fixedly provided with a feeding hopper (2).

7. A flame retardant powder screening device according to claim 6, characterized in that: The servo motor (3) is provided with an operation panel (4), and the operation panel (4) is electrically connected with the servo motor (3) and the driving motor (13).

8. A flame retardant powder screening device according to claim 7, characterized in that: The material guiding cavities (6) are formed in the two side walls of the screening box (1), and the size of the material guiding cavities (6) is greater than that of the coarse filter frame (7) and the fine filter frame (8). The material guiding cavities (6) are formed in the two side walls of the screening box (1), and the size of the material guiding cavities (6) is greater than that of the coarse filter frame (7) and the fine filter frame (8).

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