Dust remover for cross-linked polyvinylpyrrolidone production

Abstract

The dust remover comprises a filtering tank, a first rotating motor is installed at the top end of the filtering tank, the output end of the first rotating motor extends into the filtering tank and is fixedly provided with a first rotating shaft, and an annular support is fixed to the bottom end of the first rotating shaft; the inner wall of the top end of the filtering tank is fixedly provided with an arc-shaped rack through a support, the outer part of the connecting transverse shaft is fixedly provided with a first gear, the first gear is meshed with the arc-shaped rack, and one side of the filter is provided with an air inlet; an exhaust pipe is arranged at the top end of the filtering tank; an air inlet pipe is mounted on one side of the filtering tank. According to the utility model, dust in tail gas can be filtered out, and when one filter needs to be cleaned after more dust is filtered out, the next filter can be used for continuously filtering, so that the filtering effect can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cross-linked polyvinyl pyrrolidone production, in particular to a dust collector for cross-linked polyvinyl pyrrolidone production. Background Art

[0002] Polyvinylpyrrolidone (PVP) is a non-ionic polymer compound and the most distinctive, most studied and most extensive fine chemical among N-vinylamide polymers. It has developed into three major categories: non-ionic, cationic and anionic, three specifications: industrial grade, pharmaceutical grade and food grade, and a series of homopolymer, copolymer and cross-linked polymer products with relative molecular weights ranging from thousands to more than one million, and has been widely used for its excellent and unique properties.

[0003] In the prior art, cross-linked polyvinyl pyrrolidone is produced mainly by using H2O2 as an initiator and copper sulfate as an auxiliary agent. Under alkaline conditions, N-VP undergoes homopolymerization reaction, which can be divided into two-stage production steps of polymerization and spray drying. The polymerization stage is produced in batches, and spray drying is a continuous production. The liquid material in the spray dryer and the hot air evaporate the water instantly through heat exchange to become fine particles. The final product is in powder form. The tail gas of spray drying will have a large amount of dust, which needs to be filtered, collected and treated before it can be discharged into the air. Therefore, this scheme proposes a dust collector for the production of cross-linked polyvinyl pyrrolidone to treat the dust in the tail gas. Utility Model Content

[0004] In order to solve the problems mentioned in the above background technology, the utility model provides a dust collector for cross-linked polyvinyl pyrrolidone production.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A dust collector for producing cross-linked polyvinyl pyrrolidone comprises a filter tank, wherein a first rotating motor is installed at the top of the filter tank, an output end of the first rotating motor extends to the interior of the filter tank and is fixed with a first rotating shaft, an annular bracket is fixed to the bottom end of the first rotating shaft, a plurality of connecting transverse shafts are rotatably installed around the annular bracket, a filter is fixed to one end of the connecting transverse shaft away from the annular bracket through the bracket, an arc-shaped rack is fixed to the inner wall of the top end of the filter tank through the bracket, a first gear is fixed to the outside of the connecting transverse shaft, the first gear is meshed with the arc-shaped rack, an air inlet is provided on one side of the filter, an exhaust pipe is provided at the top end of the filter tank, and an air inlet pipe is installed on one side of the filter tank.

[0007] Preferably, a circular baffle is fixed inside the filter tank, the bottom of the circular baffle is used to store dust, a discharge opening is opened on the circular baffle, a second rotating motor is fixed to the top of the circular baffle, the output shaft of the second rotating motor is connected to the baffle through a bracket, the shape of the baffle matches the discharge opening, and the bottom end of the baffle is in sliding contact with the top end of the circular baffle.

[0008] Preferably, a second rotating shaft is rotatably installed inside the filter, a discharge auger is fixed at one end of the second rotating shaft close to the air inlet, the second rotating shaft extends to the outside of the filter at one end away from the air inlet and is fixed with a first friction plate, a scraper is also fixed on the second rotating shaft, the scraper contacts the inner wall of the filter, a first electric push rod is rotatably installed inside the filter tank near the top position, a second gear is fixed to the outside of the first electric push rod, a third rotating motor is also provided on one side of the first electric push rod, a third gear is fixed to the output shaft of the third rotating motor, the second gear is meshed with the third gear, and a second friction plate is fixed to the output shaft of the first electric push rod.

[0009] Preferably, a second electric push rod is fixed inside the filter tank near the air intake pipe, a connecting sleeve is fixed to the output shaft of the second electric push rod, and one end of the connecting sleeve near the air intake pipe is slidably sleeved on the outside of the air intake pipe.

[0010] Preferably, there are four to six connecting transverse axes, and the connecting transverse axes are evenly distributed around the annular bracket.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. The first rotating motor can drive the annular bracket to rotate, so that the filter tanks can be sent to the position close to the intake pipe in sequence, so that the air inlet of the filter corresponds to the intake pipe, so that the exhaust gas can enter the filter. The dust in the exhaust gas can be filtered out by the filter. When one of the filters filters out a lot of dust and needs to be cleaned, the next filter can be replaced to continue filtering, thereby improving the filtering effect.

[0013] 2. The arc-shaped rack is directly above the discharge opening. When the filter is in the air inlet position, the air inlet of the filter is tilted upward to ensure that the dust filtered inside the filter will not spill out due to gravity. When the filter moves to the position of the arc-shaped rack, the arc-shaped rack meshes with the first gear, which can drive the filter as a whole to flip over. When the first gear moves to the middle position of the arc-shaped rack, the filter rotates 180 degrees so that the air inlet of the filter faces downward, so that the dust filtered inside the filter can be poured from the discharge opening to the bottom of the baffle. After pouring the dust, the filter continues to move and flips 180 degrees to reset.

[0014] 3. When the first electric push rod is extended, it can drive the second friction plate to contact the first friction plate. The third rotating motor can drive the first electric push rod to rotate. The friction between the second friction plate and the first friction plate can drive the second rotating shaft to rotate, and then drive the scraper to scrape the dust on the inner wall of the filter. The rotation of the discharge auger can accelerate the discharge of dust from the air inlet. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 A first-view stereoscopic view of the filter tank of the present invention;

[0017] Figure 2 It is a cross-sectional view of the filter tank of the present invention from a main perspective;

[0018] Figure 3 for Figure 3 A zoomed-in detail of position A in the middle;

[0019] Figure 4 for Figure 3 Enlarged cross-sectional view of position B in the middle;

[0020] Figure 5 A second perspective view of the filter tank of the present invention;

[0021] Figure 6 A third perspective view of the filter tank of the present invention;

[0022] Figure 7 An enlarged cross-sectional view of the filter of the present invention;

[0023] Figure 8 A bottom view of the annular bracket of the present invention;

[0024] Fig. 9 It is an enlarged stereoscopic view of the position of the annular support of the present invention;

[0025] In the figure: 6 filter tank, 601 first rotating motor, 602 first rotating shaft, 603 annular bracket, 604 connecting horizontal shaft, 605 first gear, 606 arc rack, 607 exhaust pipe, 7 filter, 701 second rotating shaft, 702 first friction plate, 703 discharge auger, 704 scraper, 8 intake pipe, 801 second electric push rod, 802 connecting sleeve, 9 first electric push rod, 901 third rotating motor, 902 second gear, 903 third gear, 904 second friction plate, 10 circular baffle, 1001 unloading opening, 1002 second rotating motor, 1003 baffle. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] Example

[0028] Reference Figure 1-9 A dust collector for cross-linked polyvinyl pyrrolidone production, comprising a filter tank 6, a first rotating motor 601 is installed at the top of the filter tank 6, an output end of the first rotating motor 601 extends to the inside of the filter tank 6 and is fixed with a first rotating shaft 602, a ring bracket 603 is fixed at the bottom end of the first rotating shaft 602, a plurality of connecting horizontal shafts 604 are rotatably installed around the ring bracket 603, a filter 7 is fixed to one end of the connecting horizontal shaft 604 away from the ring bracket 603 through a bracket, an arc-shaped rack 606 is fixed to the inner wall of the top of the filter tank 6 through a bracket, a first gear 605 is fixed to the outside of the connecting horizontal shaft 604, and the first gear 605 is connected to the arc The first rotating motor 601 can drive the annular bracket 603 to rotate, so that the filter tanks 6 can be sent to the position close to the intake pipe 8 in sequence, so that the air inlet of the filter 7 corresponds to the intake pipe 8, so that the exhaust gas can enter the filter 7, and the dust in the exhaust gas can be filtered out by the filter 7. When a lot of dust is filtered out in one of the filters 7 and needs to be cleaned, the next filter 7 can be replaced to continue filtering, so as to improve the filtering effect;

[0029] Among them, a circular baffle 10 is fixed inside the filter tank 6, and the bottom of the circular baffle 10 is used to store dust. A discharge opening 1001 is opened on the circular baffle 10, and a second rotating motor 1002 is fixed to the top of the circular baffle 10. The output shaft of the second rotating motor 1002 is connected to a baffle 1003 through a bracket. The shape of the baffle 1003 matches the discharge opening 1001, and the bottom end of the baffle 1003 is in sliding contact with the top of the circular baffle 10. The baffle 1003 can be driven by the second rotating motor 1002 to move to open and close the discharge opening 1001. When the discharge opening 1001 is closed, it can ensure that the dust inside the circular baffle 10 will not follow the airflow and flow out of the exhaust pipe 607;

[0030] The arc-shaped rack 606 is directly above the discharge opening 1001. When the filter 7 is in the position of the air inlet pipe 8, the air inlet of the filter 7 is tilted upward to ensure that the dust filtered from the inside of the filter 7 will not spill out due to gravity. When the filter 7 moves to the position of the arc-shaped rack 606, the arc-shaped rack 606 is engaged with the first gear 605, which can drive the filter 7 to flip over as a whole. When the first gear 605 moves to the middle position of the arc-shaped rack 606, the filter 7 rotates one hundred and eighty degrees so that the air inlet of the filter 7 faces downward, so that the dust filtered from the inside of the filter 7 can be poured from the discharge opening 1001 to the bottom of the baffle 1003. After pouring out the dust, the filter 7 continues to move and flips over one hundred and eighty degrees to reset.

[0031] Among them, a second rotating shaft 701 is rotatably installed inside the filter 7, a discharge auger 703 is fixed to one end of the second rotating shaft 701 close to the air inlet, and the end of the second rotating shaft 701 away from the air inlet extends to the outside of the filter 7 and is fixed with a first friction plate 702, a scraper 704 is also fixed on the second rotating shaft 701, and the scraper 704 is in contact with the inner wall of the filter 7, a first electric push rod 9 is rotatably installed inside the filter tank 6 near the top position, a second gear 902 is fixed to the outside of the first electric push rod 9, and a third rotating motor 901 is also provided on one side of the first electric push rod 9, and the output of the third rotating motor 901 The output shaft is fixed with a third gear 903, the second gear 902 is meshed with the third gear 903, and the output shaft of the first electric push rod 9 is fixed with a second friction plate 904. When the first electric push rod 9 is extended, the second friction plate 904 can be driven to contact the first friction plate 702. The third rotating motor 901 can drive the first electric push rod 9 to rotate, and then the friction force between the second friction plate 904 and the first friction plate 702 can drive the second rotating shaft 701 to rotate, thereby driving the scraper 704 to scrape the dust on the inner wall of the filter 7, and the dust can be discharged from the air inlet at an accelerated rate by rotating the discharge auger 703.

[0032] Among them, a second electric push rod 801 is fixed inside the filter tank 6 near the air inlet pipe 8, and a connecting sleeve 802 is fixed to the output shaft of the second electric push rod 801. One end of the connecting sleeve 802 close to the air inlet pipe 8 is slidably sleeved on the outside of the air inlet pipe 8. When the filter 7 moves to a position close to the air inlet pipe 8, the second electric push rod 801 can be controlled to extend, so that the connecting sleeve 802 conflicts with the air inlet port of the filter 7, thereby completing the connection between the air inlet pipe 8 and the filter 7.

[0033] There are four to six connecting transverse axes 604 , and the connecting transverse axes 604 are evenly distributed around the annular bracket 603 .

[0034] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0035] In the present invention, unless otherwise clearly specified and limited, the terms "set", "install", "connect", "connect", "fix" and the like 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, a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] The control method of the present invention is automatic control through a controller. The control circuit of the controller can be realized by simple programming by technicians in this field. The provision of power is also common knowledge in this field. The present invention is mainly used to protect mechanical devices, so the present invention will no longer explain the control method and circuit connection in detail.

[0037] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A dust collector for cross-linked polyvinyl pyrrolidone production, comprising a filter tank (6), characterized in that: A first rotating motor (601) is installed at the top of the filter tank (6), the output end of the first rotating motor (601) extends to the inside of the filter tank (6) and is fixed with a first rotating shaft (602), an annular bracket (603) is fixed at the bottom end of the first rotating shaft (602), a plurality of connecting transverse shafts (604) are rotatably installed around the annular bracket (603), a filter (7) is fixed to one end of the connecting transverse shaft (604) away from the annular bracket (603) through a bracket, an arc-shaped rack (606) is fixed to the inner wall of the top of the filter tank (6) through a bracket, a first gear (605) is fixed to the outside of the connecting transverse shaft (604), the first gear (605) is meshed with the arc-shaped rack (606), an air inlet is provided on one side of the filter (7), an exhaust pipe (607) is provided at the top of the filter tank (6), and an air inlet pipe (8) is installed on one side of the filter tank (6).

2. A dust collector for cross-linked polyvinyl pyrrolidone production according to claim 1, characterized in that: A circular baffle (10) is fixed inside the filter tank (6), the bottom of the circular baffle (10) is used to store dust, a discharge opening (1001) is provided on the circular baffle (10), a second rotating motor (1002) is fixed at the top of the circular baffle (10), an output shaft of the second rotating motor (1002) is connected to the baffle (1003) via a bracket, the shape of the baffle (1003) matches the discharge opening (1001), and the bottom end of the baffle (1003) is in sliding contact with the top end of the circular baffle (10).

3. A dust collector for cross-linked polyvinyl pyrrolidone production according to claim 2, characterized in that: A second rotating shaft (701) is rotatably mounted inside the filter (7), a discharge auger (703) is fixed to one end of the second rotating shaft (701) close to the air inlet, an end of the second rotating shaft (701) away from the air inlet extends to the outside of the filter (7) and is fixed to a first friction plate (702), a scraper (704) is also fixed on the second rotating shaft (701), the scraper (704) contacts the inner wall of the filter (7), a first electric push rod (9) is rotatably mounted inside the filter tank (6) near the top position, a second gear (902) is fixed to the outside of the first electric push rod (9), a third rotating motor (901) is also provided on one side of the first electric push rod (9), a third gear (903) is fixed to the output shaft of the third rotating motor (901), the second gear (902) is meshed with the third gear (903), and a second friction plate (904) is fixed to the output shaft of the first electric push rod (9).

4. A dust collector for cross-linked polyvinyl pyrrolidone production according to claim 1, characterized in that: A second electric push rod (801) is fixed inside the filter tank (6) near the air intake pipe (8), and a connecting sleeve (802) is fixed to the output shaft of the second electric push rod (801). One end of the connecting sleeve (802) near the air intake pipe (8) is slidably sleeved on the outside of the air intake pipe (8).

5. A dust collector for cross-linked polyvinyl pyrrolidone production according to claim 1, characterized in that: The number of the connecting transverse axes (604) is four to six, and the connecting transverse axes (604) are evenly distributed around the annular support (603).

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