Water-based acrylic polymer emulsion filtering device

Abstract

The utility model relates to the technical field of filtering equipment, in particular to a water-based acrylic polymer emulsion filtering device which comprises a box body, a fixing frame is fixedly arranged in the box body, two symmetrically-arranged feeding pipes are installed on the fixing frame, one end of each feeding pipe penetrates out of the box body, and the other end of each feeding pipe penetrates out of the box body. A filter bag switching mechanism for automatically replacing the filter bags and a filter bag connecting mechanism for tightly connecting bag openings of the filter bags with the bottom of the feeding pipe are fixedly arranged at the bottom of the fixed frame; according to the water-based acrylic polymer emulsion filtering device, a plurality of filtering bags are arranged in the box body, so that when one filtering bag is full of residues, the filtering bag can move to one side along with rotation of the rotating disc, the empty filtering bag can move to the position below the feeding pipe for filtering work, and by increasing the number of the filtering bags, a worker can replace a plurality of filtering bags at the same time at a time; the cleaning frequency is greatly reduced, the labor intensity is relieved, shutdown is not needed when the filter bag is replaced, and then the production efficiency can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of filtering equipment, in particular to a water-based acrylic acid polymer emulsion filtering device. Background Art

[0002] Water-based acrylic polymer emulsion is an important material widely used in coatings, adhesives, fiber processing, and building materials. After production, the emulsion in the reactor is filtered through a filter to remove residues from the emulsion polymerization process. The filtered liquid is then stored in a finished product storage tank. Existing filtration methods typically use basket filters, which require cleaning after a period of operation. Frequent cleaning of the basket increases labor intensity, while requiring downtime for cleaning, which also reduces production efficiency. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model provides a water-based acrylic polymer emulsion filtering device, which solves the technical problems of frequent cleaning of basket filters and reduced production efficiency.

[0004] To solve the above-mentioned technical problems, the present invention provides the following technical solutions: a water-based acrylic polymer emulsion filtering device, comprising a housing, a fixed frame fixedly provided in the housing, two symmetrically arranged feed pipes mounted on the fixed frame, one end of each feed pipe extending through the exterior of the housing, a filter bag switching mechanism for automatically replacing a filter bag, and a filter bag connecting mechanism for tightly connecting the filter bag opening to the bottom of the feed pipe;

[0005] The filter bag switching mechanism includes a synchronous rotating component arranged at the bottom of the fixed frame, two rotating shafts are fixed on the synchronous rotating component, and the two rotating shafts are rotatably connected to the two ends of the fixed frame respectively. A turntable is fixed at the bottom of the rotating shaft, and a plurality of notches are provided on the turntable. Fixed blocks are fixed in the notches, and a movable ring is slidably provided on the fixed block, and a filter bag is sleeved in the movable ring.

[0006] Preferably, an exhaust pipe is installed on the top of the box body, and the exhaust pipe is located between the two feed pipes.

[0007] Preferably, the synchronous rotation component includes a motor mounted on a fixed frame, a transmission gear 1 is fixed on the output shaft of the motor, the transmission gear 1 is connected to two transmission gears 2 through a gear belt, and the two transmission gears 2 are respectively fixed on the two rotating shafts.

[0008] Preferably, the filter bag connecting mechanism includes a fixed plate fixed to the bottom of the fixed frame, an electric push rod is installed on the side wall of the fixed plate, a conical push block is fixed on the telescopic shaft of the electric push rod, and guide wheels are in rolling contact on both sides of the push block. The two guide wheels are respectively fixed to two lifting frames, the lifting frame is "U"-shaped, the lifting frame surface is inclined and fixed to the protrusion on the outer wall of the movable ring for sliding contact, the two lifting frames are respectively fixed at one end of the two movable columns, the two movable columns are both sleeved in the fixed column, and a spring fixed between the two movable columns is provided in the fixed column, and the fixed column is fixed to the fixed plate.

[0009] Preferably, an inspection port is provided on the top of the box body, and a glass window is movably connected to the inspection port.

[0010] Preferably, pressure sensors are installed on the outer walls of the two feeding pipes.

[0011] Preferably, a stainless steel mesh plate in contact with the bottom of the filter bag is fixedly provided at the bottom of the inner side of the box.

[0012] By means of the above technical solution, the utility model provides a water-based acrylic polymer emulsion filtering device, which has at least the following beneficial effects:

[0013] 1. The water-based acrylic polymer emulsion filtration device is equipped with a filter bag switching mechanism and multiple filter bags are arranged in the box. When a filter bag is filled with residue, it can be moved to the side as the turntable rotates, and the empty filter bag can be moved under the feed pipe to perform filtering. By increasing the number of filter bags, the staff can replace multiple filter bags at the same time, greatly reducing the number of cleaning times and reducing labor intensity. There is no need to stop the machine when replacing the filter bags, which can improve production efficiency.

[0014] 2. The water-based acrylic polymer emulsion filtration device is provided with a filter bag connection mechanism. When switching the filter bags, the electric push rod is operated and the lifting frame and the protrusion are used in conjunction to make the movable ring drive the filter bag to move upward, ensuring that the bag opening of the filter bag contacts and forms a seal with the bottom of the feed pipe, thereby avoiding the problem of filtrate leakage from the bag opening and causing a reduction in the filtration effect.

[0015] 3. The water-based acrylic polymer emulsion filtration device is equipped with a pressure sensor. When there is too much residue inside the filter bag, the water pressure in the feed pipe increases and is detected by the pressure sensor. The pressure sensor feeds back pressure data to the control system, which controls the operation of the filter bag switching mechanism, thereby achieving the purpose of automatic filter bag replacement. This not only improves the degree of automation of the equipment, but also enhances the reliability and service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application:

[0017] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure inside the box of the utility model;

[0019] Figure 3 This is a structural diagram of the synchronous rotating assembly at the bottom of the fixed frame of the utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the various components on the turntable of the utility model;

[0021] Figure 5 This is a structural diagram of the filter bag connection mechanism of the utility model;

[0022] Figure 6 This is a schematic diagram of the internal structure of the fixed column of the utility model;

[0023] Figure 7 This is a structural diagram of the connection between the lifting frame and the movable ring of the utility model;

[0024] Reference numerals:

[0025] 1. Box body; 2. Fixed frame; 3. Feed pipe; 4. Exhaust pipe; 5. Filter bag switching mechanism; 51. Synchronous rotation component; 511. Motor; 512. Transmission gear 1; 513. Gear belt; 514. Transmission gear 2; 52. Rotating shaft; 53. Turntable; 54. Fixed block; 55. Movable ring; 56. Filter bag; 57. Bump; 6. Filter bag connecting mechanism; 61. Fixed plate; 62. Electric push rod; 63. Push block; 64. Guide wheel; 65. Lifting frame; 66. Movable column; 67. Fixed column; 68. Spring; 7. Pressure sensor; 8. Glass window; 9. Stainless steel mesh. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] Waterborne acrylic polymer emulsions are important materials widely used in coatings, adhesives, fiber treatment, and building materials. They are favored for their environmental friendliness and low volatile organic compound (VOC) emissions. However, during their production and application, the purity and stability of the emulsion are crucial to the quality of the final product. Waterborne acrylic polymer emulsions are typically produced through emulsion polymerization. In this process, monomers polymerize in an aqueous phase to form small particles that are dispersed in water. However, during the production process, impurities, unreacted monomers, additives, particles, and other solids may be generated. These impurities not only affect the physical properties of the emulsion but can also lead to uneven coatings and reduced adhesion during application. To ensure the quality of waterborne acrylic polymer emulsions, effective filtration is essential during the production process. Filtration not only removes unnecessary impurities but also ensures the uniformity and stability of the emulsion, thereby improving its application performance. This helps prevent problems in production processes such as coating and spraying.

[0028] Example 1:

[0029] Based on the technical defects of the existing technology such as frequent cleaning and reduced production efficiency, please refer to Figure 1-Figure 7 The utility model provides an aqueous acrylic polymer emulsion filtering device. By increasing the number of filter bags 56, the staff can replace multiple filter bags 56 at one time, which greatly reduces the number of cleaning times and reduces the labor intensity. There is no need to stop the machine when replacing the filter bags 56, thereby improving production efficiency. The device includes a box body 1, a fixed frame 2 is fixed in the box body 1, and two symmetrically arranged feed pipes 3 are installed on the fixed frame 2. One end of the two feed pipes 3 passes through the outside of the box body 1, and a filter bag switching mechanism 5 for automatically replacing the filter bag 56 and a filter bag connecting mechanism 6 for tightly connecting the bag opening of the filter bag 56 to the bottom of the feed pipe 3 are fixed at the bottom of the fixed frame 2; when in use, the filtrate enters the filter bag 56 in the box body 1 through the feed pipe 3. Under the action of the filter bag switching mechanism 5, when the filter bag 56 is full of residue, it switches to the next empty filter bag 56 and continues the filtration work. After switching, the bag opening of the filter bag 56 is pressed and contacted with the bottom of the feed pipe 3 through the filter bag connecting mechanism 6.

[0030] To replace the filter bag 56, please refer to Figure 3 、 Figure 4 and Figure 7The filter bag switching mechanism 5 includes a synchronous rotating component 51 arranged at the bottom of the fixed frame 2. Two rotating shafts 52 are fixed on the synchronous rotating component 51. The two rotating shafts 52 are rotatably connected to the two ends of the fixed frame 2. A turntable 53 is fixed at the bottom of the rotating shaft 52. A plurality of notches are provided on the turntable 53. A fixed block 54 is fixed in the notch. A movable ring 55 is slidably provided on the fixed block 54. A filter bag 56 is sleeved in the movable ring 55. When switching, the synchronous rotating component 51 is started and drives the rotating shaft 52 to rotate. The rotating shaft 52 drives the turntable 53 to rotate. The turntable 53 drives the filter bag 56 to rotate and move through the movable ring 55 to switch.

[0031] In order to conveniently discharge the waste gas generated during the filtration of the aqueous acrylic polymer emulsion, an exhaust pipe 4 is installed on the top of the box 1, and the exhaust pipe 4 is located between the two feed pipes 3; the waste gas can be discharged outward through the exhaust pipe 4.

[0032] To achieve the simultaneous replacement of the filter bags 56 at the bottom of the two feed pipes 3, please refer to Figure 3 The synchronous rotation component 51 includes a motor 511 installed on the fixed frame 2, and a transmission gear 1 512 is fixed on the output shaft of the motor 511. The transmission gear 1 512 is connected to two transmission gears 2 514 through a gear belt 513. The two transmission gears 2 514 are respectively fixed on the two rotating shafts 52; the motor 511 is used to work and the two turntables 53 are driven to rotate synchronously through the transmission action of the transmission gear 1 512, the gear belt 513 and the transmission gear 2 514.

[0033] In order to facilitate the staff to replace the filter bag 56 on the turntable 53, an inspection port is provided on the top of the box body 1, and a glass window 8 is movably connected to the inspection port; by opening the glass window 8, the staff can replace the filter bag 56 on the turntable 53.

[0034] In order to realize automatic replacement of the filter bag 56, pressure sensors 7 are installed on the outer walls of the two feed pipes 3; when there is too much residue inside the filter bag 56, the water pressure in the feed pipe 3 increases and is detected by the pressure sensor 7. The pressure sensor 7 feeds back pressure data to the control system, and the control system controls the operation of the filter bag switching mechanism 5, thereby achieving the purpose of automatic replacement of the filter bag 56, which not only improves the degree of automation of the equipment, but also enhances the reliability and service life of the equipment.

[0035] In order to prevent the filter bag 56 from falling off the movable ring 55 after being filled with residue, a stainless steel mesh plate 9 is fixed at the bottom of the inner side of the box body 1 to contact the bottom of the filter bag 56; the stainless steel mesh plate 9 can be used to support the bottom of the filter bag 56.

[0036] Example 2:

[0037] When the filter bag 56 is below the feed pipe 3, there is still a certain gap between the filter bag 56 and the feed pipe 3, and the filtrate is easy to leak out from the gap between the two, resulting in poor filtering effect. To solve this problem, based on the first embodiment, please refer to Figure 5 and Figure 7 The filter bag connecting mechanism 6 includes a fixed plate 61 fixed to the bottom of the fixed frame 2, an electric push rod 62 is installed on the side wall of the fixed plate 61, and a conical push block 63 is fixed on the telescopic shaft of the electric push rod 62. Both sides of the push block 63 are in rolling contact with guide wheels 64. The two guide wheels 64 are respectively fixed to two lifting frames 65. The lifting frame 65 is "U"-shaped. The surface of the lifting frame 65 is inclined and fixed to the protrusion 57 on the outer wall of the movable ring 55 for sliding contact. The two lifting frames 65 are respectively fixed at one end of the two movable columns 66. The two movable columns 66 are It is sleeved in the fixed column 67, and a spring 68 fixedly connected between the two movable columns 66 is provided in the fixed column 67, and the fixed column 67 is fixedly connected to the fixed plate 61; when the empty filter bag 56 is under the feed pipe 3, the electric push rod 62 is used to work and drive the push block 63 to move, and the push block 63 squeezes the guide wheel 64 and moves the lifting frame 65, and the lifting frame 65 squeezes the protrusion 57 and moves the movable ring 55 upward, and then the movable ring 55 can drive the filter bag 56 to move upward until the bag mouth of the filter bag 56 contacts the bottom of the feed pipe 3 and forms a closure.

[0038] It can be seen from the above embodiment that: during use, when there is too much residue inside the filter bag 56, the water pressure in the feed pipe 3 increases and is detected by the pressure sensor 7. The pressure sensor 7 feeds back pressure data to the control system, and the control system controls the operation of the filter bag switching mechanism 5. At this time, under the action of the filter bag switching mechanism 5, the motor 511 works and drives the two turntables 53 to rotate synchronously through the transmission action of the transmission gear 1 512, the gear belt 513 and the transmission gear 2 514. The turntable 53 drives the filter bag 56 to rotate and switch through the movable ring 55. After switching, under the action of the filter bag connecting mechanism 6, the electric push rod 62 works and drives the push block 63 to move. The push block 63 squeezes the guide wheel 64 and moves the lifting frame 65. The lifting frame 65 squeezes the protrusion 57 and moves the movable ring 55 upward, and then the movable ring 55 can drive the filter bag 56 to move upward until the bag opening of the filter bag 56 contacts the bottom of the feed pipe 3 and forms a seal.

[0039] It should be noted that the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements that are inherent to such process, method, article or apparatus.

[0040] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A water-based acrylic polymer emulsion filtering device, comprising a housing (1), characterized in that: A fixing frame (2) is fixedly provided in the box body (1), and two symmetrically arranged feed pipes (3) are mounted on the fixing frame (2), one end of each of the two feed pipes (3) passes through the outside of the box body (1), and a filter bag switching mechanism (5) for automatically replacing the filter bag (56) and a filter bag connecting mechanism (6) for tightly connecting the bag opening of the filter bag (56) to the bottom of the feed pipe (3) are fixedly provided at the bottom of the fixing frame (2); The filter bag switching mechanism (5) comprises a synchronous rotating assembly (51) arranged at the bottom of the fixed frame (2), two rotating shafts (52) are fixedly provided on the synchronous rotating assembly (51), and the two rotating shafts (52) are rotatably connected to the two ends of the fixed frame (2) respectively. A rotating disk (53) is fixedly provided at the bottom of the rotating shaft (52), and a plurality of notches are provided on the rotating disk (53), and a fixed block (54) is fixedly provided in the notches. A movable ring (55) is slidably provided on the fixed block (54), and a filter bag (56) is sleeved in the movable ring (55).

2. The aqueous acrylic polymer emulsion filtering device according to claim 1, characterized in that: An exhaust pipe (4) is installed on the top of the box body (1), and the exhaust pipe (4) is located between the two feed pipes (3).

3. The aqueous acrylic polymer emulsion filtering device according to claim 1, characterized in that: The synchronous rotation assembly (51) includes a motor (511) mounted on a fixed frame (2). A transmission gear 1 (512) is fixedly provided on the output shaft of the motor (511). The transmission gear 1 (512) is connected to two transmission gear 2s (514) via a gear belt (513). The two transmission gear 2s (514) are respectively fixedly connected to the two rotating shafts (52).

4. The aqueous acrylic polymer emulsion filtering device according to claim 1, characterized in that: The filter bag connecting mechanism (6) includes a fixed plate (61) fixed to the bottom of the fixed frame (2), an electric push rod (62) is installed on the side wall of the fixed plate (61), a conical push block (63) is fixed on the telescopic shaft of the electric push rod (62), and both sides of the push block (63) are in rolling contact with guide wheels (64), and the two guide wheels (64) are respectively fixed to two lifting frames (65), the lifting frames (65) are "U"-shaped, the surface of the lifting frames (65) is inclined and is fixed to the protrusion (57) on the outer wall of the movable ring (55) for sliding contact, the two lifting frames (65) are respectively fixed to one end of two movable columns (66), the two movable columns (66) are both sleeved in the fixed column (67), and a spring (68) fixed between the two movable columns (66) is provided in the fixed column (67), and the fixed column (67) is fixed to the fixed plate (61).

5. The aqueous acrylic polymer emulsion filtering device according to claim 1, characterized in that: The top of the box body (1) is provided with an inspection port, and a glass window (8) is movably connected to the inspection port.

6. The aqueous acrylic polymer emulsion filtering device according to claim 1, characterized in that: Pressure sensors (7) are installed on the outer walls of the two feeding pipes (3).

7. The aqueous acrylic polymer emulsion filtering device according to claim 1, characterized in that: A stainless steel mesh plate (9) in contact with the bottom of the filter bag (56) is fixedly provided at the bottom of the inner side of the box body (1).

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