A three-fold filtering device for a fluorescent whitening agent

Abstract

The utility model relates to the field of fluorescent whitening agent processing discloses a kind of three condensation filtering equipment of fluorescent whitening agent, including shell, the top of the shell is fixedly connected with feeding hopper, the bottom of the shell is equipped with motor, the output shaft of the motor is fixedly connected with rotating rod, the outer wall of the rotating rod is provided with rotary filtering mechanism, and the rotary filtering mechanism includes filtering collection subassembly, and the filtering collection subassembly includes connecting rod.In the utility model, by setting filtering collection subassembly, spiral filter frame is rotated using motor drive, and multiple sets of screening net are used to complete dynamic multistage filtration of fluorescent whitening agent, and the lifting of shielding ring is controlled using electric push rod in cooperation with pushing and cleaning subassembly, impurities are automatically discharged using centrifugal force under non-stop state, completely solve the production interruption problem caused by the need of cleaning due to filter core sedimentation in traditional intermittent filter device, effectively guarantee the continuity of processing, significantly improve the filtering efficiency and production progress.

Description

Technical Field

[0001] This utility model relates to the field of fluorescent whitening agent processing, and in particular to a three-stage filtration device for fluorescent whitening agents. Background Technology

[0002] Fluorescent brightener 113 belongs to the stilbene bistriazine anionic brightener. Due to its excellent acid and alkali resistance, high temperature stability and significant whitening effect, it is widely used in papermaking, textiles, detergents and other fields. During the production process, a three-condensation reaction is required. After the reaction, in addition to fluorescent brightener 113, the liquid also contains unreacted impurities and colloidal byproducts. It is necessary to use high-efficiency filtration equipment to achieve solid-liquid separation and purification in order to meet the requirements of subsequent processing and product quality.

[0003] Currently, the filtration process in the production of fluorescent whitening agents mostly uses traditional fixed filter cartridges or filter bags. However, since the filtration process is intermittent, when impurities accumulate on the surface of the filter cartridge to a certain extent, the filtration efficiency will drop sharply, and the machine must be stopped to replace or clean the filter cartridge. This seriously affects the continuity and efficiency of production. At the same time, cleaning the filter residue is not only cumbersome, but opening the equipment can also expose the fluorescent whitening agent to the air. The cleaning process increases the filtration cost of fluorescent whitening agents and affects the production rate. Utility Model Content

[0004] To overcome the above deficiencies, this utility model provides a three-stage filtration device for fluorescent whitening agents, which aims to solve the problem in the prior art that "when impurities accumulate on the surface of the filter element to a certain extent, the filtration efficiency will drop sharply, and the machine must be stopped to replace or clean the filter element".

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a three-stage filtration device for fluorescent whitening agents, comprising a housing, a feeding hopper fixedly connected to the top of the housing, a motor installed at the bottom of the housing, a rotating rod fixedly connected to the output shaft of the motor, a rotating filtration mechanism provided on the outer wall of the rotating rod, the rotating filtration mechanism including a filtration collection assembly, the filtration collection assembly including a connecting rod, the connecting rod fixedly connected to the outer wall of the rotating rod, a filter frame fixedly connected to the outer wall of the connecting rod, a screening screen fixedly connected to the inner wall of the filter frame, a conveying ring fixedly connected to the top of the filter frame, a slag discharge groove opened on the outer wall of the filter frame, and a collection hopper fixedly connected to the bottom of the filter frame.

[0006] As a further description of the above technical solution: The rotary filtering mechanism includes a material pushing and cleaning assembly, which includes a support frame. The support frame is fixedly connected to the upper surface of the housing. An electric push rod is installed on the inner wall of the support frame. The output shaft of the electric push rod is rotatably connected to an adjusting frame. A shielding ring is fixedly connected to the outer wall of the adjusting frame. A push plate is fixedly connected to the inner wall of the feeding hopper.

[0007] As a further description of the above technical solution: The adjusting frame is slidably connected to the outer wall of the rotating rod, and the shielding ring is slidably connected to the outer wall of the filter frame.

[0008] As a further description of the above technical solution: The collecting hopper is rotatably connected to the inner wall of the shell, and the conveying ring is rotatably connected to the inner wall of the shell.

[0009] As a further description of the above technical solution: The filter frame is provided in two sets, and the two sets of filter frames are symmetrically arranged with the center line of the rotating rod as the axis of symmetry. The filter frame is spiral in shape and the inner wall of the filter frame is hollow.

[0010] As a further description of the above technical solution: The outer wall of the shell is provided with a slag discharge trough, and the bottom outer wall of the shell is provided with a discharge trough.

[0011] As a further description of the above technical solution: The pusher plate is slidably connected to the inner wall of the conveying ring, and the shape of the pusher plate is set to be inclined.

[0012] As a further description of the above technical solution: The slag discharge trough is located above the screening screen, and multiple sets of screening screens are arranged in a horizontal array on the inner wall of the filter frame.

[0013] This utility model has the following beneficial effects: 1. In this utility model, by setting up a filter collection component, a spiral filter frame driven by a motor is rotated, and multiple sets of screening screens are used to complete the dynamic multi-stage filtration of fluorescent whitening agents. At the same time, with the help of a pusher cleaning component, the shielding ring is raised and lowered by an electric push rod. Impurities are automatically discharged by centrifugal force without stopping the machine. This completely solves the problem of production interruption caused by the need to stop the machine to clean the filter element due to the accumulation of sludge in the filter element in traditional intermittent filtration devices, effectively ensuring the continuity of processing and significantly improving filtration efficiency and production progress.

[0014] 2. In this utility model, by combining the filter collection component and the pusher cleaning component, the impurity cleaning is completed in a closed environment in the slag discharge tank, without the need to open the equipment, thus avoiding exposure of the fluorescent whitening agent and the introduction of harmful impurities. At the same time, it reduces the tedious operation of manually replacing and cleaning the filter element, reducing labor costs and fluorescent whitening agent loss, thereby reducing processing costs and ensuring the purity of the fluorescent whitening agent. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the overall device in this utility model; Figure 2 This is a three-dimensional cross-sectional view of the overall device in this utility model; Figure 3 This is a three-dimensional structural breakdown diagram of the support frame and rotating rod in this utility model; Figure 4 This is a three-dimensional cross-sectional view of the filter frame in this utility model.

[0016] Legend: 1. Shell; 2. Feeding hopper; 3. Motor; 4. Rotating rod; 5. Filter collection assembly; 51. Connecting rod; 52. Filter frame; 53. Screening screen; 54. Conveying ring; 55. Slag discharge chute; 56. Collection hopper; 6. Pushing and cleaning assembly; 61. Support frame; 62. Electric push rod; 63. Adjusting frame; 64. Blinding ring; 65. Pushing plate; 7. Slag discharge chute; 8. Discharge chute. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Reference Figure 1 , Figure 2 and Figure 3This utility model provides an embodiment of a three-stage filtration device for fluorescent whitening agents, comprising a housing 1 for mounting other components, a feeding hopper 2 for concentrating the fluorescent whitening agent into the inner side of a conveying ring 54 fixedly connected to the top of the housing 1, a motor 3 for driving a rotating rod 4 to rotate installed at the bottom of the housing 1, the output shaft of the motor 3 being fixedly connected to the rotating rod 4 for driving other components to rotate, a rotating filtration mechanism provided on the outer wall of the rotating rod 4, the rotating filtration mechanism including a filter collection assembly 5 for filtering the fluorescent whitening agent, the filter collection assembly 5 including a connecting rod 51 for connecting to a support filter frame 52, the connecting rod 51 being fixedly connected to the outer wall of the rotating rod 4 and rotating with the rotating rod 4, a filter frame 52 being fixedly connected to the outer wall of the connecting rod 51 for filtering the fluorescent whitening agent, a sieve 53 for filtering fluorescent whitening agent impurities being fixedly connected to the inner wall of the filter frame 52, and a device for allowing the fluorescent whitening agent to enter the filter frame 52 being fixedly connected to the top of the filter frame 52. The conveying ring 54, the outer wall of the filter frame 52 is provided with a slag discharge groove 55 for discharging impurities inside the filter frame 52, and the bottom of the filter frame 52 is fixedly connected with a collection hopper 56 for collecting the filtered fluorescent whitening agent in a concentrated and separate manner.

[0019] Reference Figure 2 and Figure 3 The rotary filter mechanism also includes a material pushing and cleaning assembly 6. The material pushing and cleaning assembly 6 includes a support frame 61 for supporting the electric push rod 62. The support frame 61 is fixedly connected to the upper surface of the housing 1 and is supported by the housing 1. An electric push rod 62 for pushing the adjusting frame 63 to slide up and down is installed on the inner wall of the support frame 61. The output shaft of the electric push rod 62 is rotatably connected to the adjusting frame 63 for driving the blocking ring 64 to move. A blocking ring 64 for blocking the slag discharge trough 55 is fixedly connected to the outer wall of the adjusting frame 63. A push plate 6 is fixedly connected to the inner wall of the feeding hopper 2. 5. The pusher plate 65 is used to push the fluorescent whitening agent inside the conveying ring 54 into the filter frame 52. The adjusting frame 63 is slidably connected to the outer wall of the rotating rod 4 and is used to drive the shielding ring 64 to slide up and down. The shielding ring 64 is slidably connected to the outer wall of the filter frame 52. When the slag discharge trough 55 is opened, it can work with the rotating filter frame 52 to throw impurities off the screening screen 53 and complete the cleaning. The pusher plate 65 is slidably connected to the inner wall of the conveying ring 54. The shape of the pusher plate 65 is set to be inclined, which can better push the fluorescent whitening agent into the filter frame 52.

[0020] Reference Figure 2 , Figure 3 and Figure 4The collecting hopper 56 is rotatably connected to the inner wall of the housing 1, separating the inner wall of the housing 1. The bottom of the hopper holds the filtered fluorescent whitening agent, and the top holds the filtered impurities. The conveying ring 54 is rotatably connected to the inner wall of the housing 1 and is supported and fixed by the housing 1. Two sets of filter frames 52 are provided, symmetrically arranged about the center line of the rotating rod 4. The filter frames 52 are spiral-shaped, and their inner walls are hollow. The spiral shape of the filter frames 52 allows the fluorescent whitening agent to move more freely inside. The distance is such that the fluorescent whitening agent can quickly pass through the sieve 53 when the rotating rod 4 drives the rotation. The outer wall of the shell 1 is provided with a slag discharge groove 7 for discharging impurities into the shell 1. The bottom outer wall of the shell 1 is provided with a discharge groove 8 for discharging the fluorescent whitening agent out of the shell 1. The slag discharge groove 55 is set on the upper part of the sieve 53, which can directly throw out the impurities on the sieve 53. Multiple sets of sieve 53 are set in a horizontal array on the inner wall of the filter frame 52, which can perform multi-stage filtration of the fluorescent whitening agent.

[0021] Working Principle: During operation, the fluorescent whitening agent is added from the feeding hopper 2 and concentrated inside the conveying ring 54. The motor 3 starts, driving the rotating rod 4 to rotate. The rotating rod 4 drives the connecting rod 51 and the filter frame 52 to rotate synchronously. The pusher plate 65, fixed to the inner wall of the feeding hopper 2, acts as the filter frame 52 rotates, pushing the fluorescent whitening agent in the conveying ring 54 into the filter frame 52. The fluorescent whitening agent flows inside the spiral filter frame 52. Due to centrifugal force, the fluorescent whitening agent quickly passes through multiple sets of horizontally arrayed screening screens 53 for multi-stage filtration. Impurities are trapped by the screening screens 53. The filtered fluorescent whitening agent falls into the collecting hopper 56 and passes through the shell 1. The material is discharged from the bottom discharge chute 8. When it is necessary to clean impurities, the electric push rod 62 is activated. The electric push rod 62 pushes the adjusting frame 63 to move downward, causing the shielding ring 64 to slide down and expose the slag discharge chute 55. At this time, the filter frame 52 continues to rotate under the drive of the rotating rod 4. Under the action of centrifugal force, the impurities accumulated on the screening screen 53 are thrown out of the slag discharge chute 55, enter the upper space of the shell 1, and are discharged through the slag discharge chute 7 on the outer wall of the shell 1. After cleaning, the electric push rod 62 is reset, causing the shielding ring 64 to slide up and cover the slag discharge chute 55 again. The equipment returns to the filtration state. The whole process realizes the continuous filtration of fluorescent whitening agent and the automatic cleaning of impurities, which effectively improves processing efficiency and product quality.

[0022] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A three-stage filtration device for fluorescent whitening agents, comprising a housing (1), characterized in that: A feeding hopper (2) is fixedly connected to the top of the housing (1), and a motor (3) is installed at the bottom of the housing (1). A rotating rod (4) is fixedly connected to the output shaft of the motor (3). A rotating filter mechanism is provided on the outer wall of the rotating rod (4). The rotating filter mechanism includes a filter collection component (5). The filter collection assembly (5) includes a connecting rod (51), which is fixedly connected to the outer wall of the rotating rod (4). A filter frame (52) is fixedly connected to the outer wall of the connecting rod (51). A screening screen (53) is fixedly connected to the inner wall of the filter frame (52). A conveying ring (54) is fixedly connected to the top of the filter frame (52). A slag discharge groove (55) is opened on the outer wall of the filter frame (52). A collection hopper (56) is fixedly connected to the bottom of the filter frame (52).

2. The three-stage filtration device for fluorescent whitening agents according to claim 1, characterized in that: The rotary filter mechanism also includes a material pushing and cleaning assembly (6), which includes a support frame (61). The support frame (61) is fixedly connected to the upper surface of the housing (1). An electric push rod (62) is installed on the inner wall of the support frame (61). An adjustment frame (63) is rotatably connected to the output shaft of the electric push rod (62). A shielding ring (64) is fixedly connected to the outer wall of the adjustment frame (63). A push plate (65) is fixedly connected to the inner wall of the feeding hopper (2).

3. The three-stage filtration device for fluorescent whitening agents according to claim 2, characterized in that: The adjusting frame (63) is slidably connected to the outer wall of the rotating rod (4), and the shielding ring (64) is slidably connected to the outer wall of the filter frame (52).

4. The three-stage filtration device for fluorescent whitening agents according to claim 1, characterized in that: The collecting hopper (56) is rotatably connected to the inner wall of the housing (1), and the conveying ring (54) is rotatably connected to the inner wall of the housing (1).

5. The three-stage filtration device for fluorescent whitening agents according to claim 1, characterized in that: The filter frame (52) is provided in two sets. The two sets of filter frames (52) are symmetrically arranged with the center line of the rotating rod (4) as the axis of symmetry. The filter frame (52) is spiral in shape and the inner wall of the filter frame (52) is hollow.

6. The three-stage filtration device for fluorescent whitening agents according to claim 1, characterized in that: The outer wall of the shell (1) is provided with a slag discharge trough (7), and the bottom outer wall of the shell (1) is provided with a discharge trough (8).

7. The three-stage filtration device for fluorescent whitening agents according to claim 2, characterized in that: The pusher plate (65) is slidably connected to the inner wall of the conveying ring (54), and the shape of the pusher plate (65) is set to be inclined.

8. The three-stage filtration device for fluorescent whitening agents according to claim 1, characterized in that: The slag discharge trough (55) is located on the upper part of the screening screen (53), and multiple sets of the screening screen (53) are arranged in a horizontal array on the inner wall of the filter frame (52).

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