Defoaming device for butyronitrile latex production

Abstract

The utility model discloses a defoaming device for butyronitrile latex production, which relates to the technical field of defoaming and comprises a latex mixing barrel, a driving box is fixedly arranged at the top of the latex mixing barrel, and a defoaming component is arranged at the top of the driving box and used for primarily defoaming butyronitrile latex in the latex mixing barrel. A mixing assembly is arranged in the latex mixing barrel and used for defoaming the butyronitrile latex again, the defoaming effect is guaranteed, and the defoaming assembly comprises a capacity barrel. According to the defoaming device for the butyronitrile latex, the defoaming agent for the butyronitrile latex is driven to be sprayed out from the plurality of spraying holes to be fused with the butyronitrile latex, so that the purpose of primary defoaming is achieved, bubbles in mixed liquid of the defoaming agent for the butyronitrile latex and the butyronitrile latex are punctured through the plurality of defoaming cones, the purpose of secondary defoaming is achieved, and the defoaming effect and the defoaming efficiency are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of defoaming, in particular to a defoaming device for producing nitrile latex. Background Art

[0002] Nitrile butadiene rubber (NBR) latex is a polymer dispersion produced using advanced polymerization processes, including free radical emulsions. It appears as a milky white, viscous emulsion with excellent oil resistance. It is used in oil-resistant products such as oil-resistant films, oil-resistant asbestos rubber sheets, oil-resistant paper gaskets, fuel tank linings, oil-resistant foam sponges, and fiberboard. It is commonly used in industries such as automotive manufacturing, machining, metallurgical sealing, engineering construction, and the petroleum industry. However, NBR latex is prone to bubbles during production, necessitating defoaming procedures.

[0003] For example, a defoaming device for producing nitrile latex according to Chinese patent application number CN202322433057.8 relates to the technical field of defoaming devices, including a latex mixing tank, a sealing cover fixedly mounted on the top of the latex mixing tank, a drive motor movably mounted on the top of the sealing cover, a material injection pipe fixedly mounted on both ends of the top of the sealing cover, and a discharge pipe fixedly mounted on one side of the latex mixing tank. The utility model solves the problem of a large amount of bubbles being easily generated inside the nitrile latex during production, thereby affecting the processing quality of the device, achieves the function of collision defoaming, and utilizes the elasticity of the lifting rod to push the defoaming mechanism to move up and down, making it convenient for the device to defoam, which is conducive to the convenient processing of the device.

[0004] However, in actual use, the above-mentioned device achieves the function of defoaming the nitrile latex by colliding the stirring arm with the bubbles. However, bubbles will also appear in the process of stirring the nitrile latex by the stirring arm. The generation of bubbles cannot be avoided in this process, and they are eliminated while they are generated. The defoaming effect is poor, and it is time-consuming, which will also reduce the efficiency of defoaming. Utility Model Content

[0005] In response to the shortcomings of the existing technology, the utility model provides a defoaming device for nitrile latex production. The defoaming agent for nitrile latex is driven to be sprayed out from a number of spray holes and merged with the nitrile latex to achieve the initial defoaming purpose. The bubbles in the mixed liquid of the defoaming agent for nitrile latex and nitrile latex are then punctured by a number of defoaming cones, thereby achieving the purpose of secondary defoaming, improving the defoaming effect and defoaming efficiency, and effectively solving the problems in the background technology.

[0006] To achieve the above object, the technical solution adopted by the utility model is as follows: a defoaming device for nitrile latex production, comprising a latex mixing barrel, a driving box being fixedly provided on the top of the latex mixing barrel;

[0007] A defoaming assembly is provided on the top of the driving box for initially defoaming the nitrile latex in the latex mixing barrel;

[0008] The latex mixing barrel is provided with a mixing component for defoaming the nitrile latex again to ensure the defoaming effect;

[0009] The defoaming assembly includes a capacity cylinder, which is arranged on the top of the driving box. A suction pump is fixedly provided at the top of the driving box. A suction pipe is fixedly provided at the suction port of the suction pump. The top of the suction pipe passes through the driving box and is fixedly connected to the bottom of the capacity cylinder. An annular frame is provided at the top of the latex mixing barrel, and a number of evenly distributed spray holes are opened at the bottom of the annular frame.

[0010] Preferably, the discharge port of the suction pump is fixedly provided with an L-shaped discharge pipe, the bottom end of the L-shaped discharge pipe passes through the top of the drive box and is fixedly provided with a connecting pipe, and the front and rear ends of the connecting pipe are fixedly connected to the inside of the annular frame, an electric valve is fixed on the suction pipe, and a support column is fixed between the capacity cylinder and the drive box.

[0011] Preferably, the mixing assembly includes a rotating shaft, the top and bottom ends of which are connected between the top and bottom ends of the latex mixing barrel via bearings respectively, and two rotating plates are fixed on the rotating shaft to facilitate the rotation of the rotating plates by the rotation of the rotating shaft.

[0012] Preferably, the rotating plate is provided with a plurality of evenly distributed feed grooves, and a plurality of mutually staggered defoaming cones are fixedly provided inside the plurality of feed grooves to facilitate bursting of bubbles appearing in the production of nitrile latex, thereby achieving the purpose of defoaming.

[0013] Preferably, a motor is fixedly provided at the bottom end of the driving box, and the output shaft of the motor passes through the top of the latex mixing barrel and is fixedly connected to the top end of the rotating shaft, so that the motor drives the rotating shaft to rotate.

[0014] Preferably, the top of the latex mixing barrel is provided with two feed ports, and feed inclined frames are fixedly provided inside the two feed ports. The front hinge of the latex mixing barrel is connected to the barrel door, and bottom support frames are fixedly provided on both sides of the bottom of the latex mixing barrel to facilitate supporting the latex mixing barrel.

[0015] Preferably, a control panel for driving the material pump, electric valve and motor is fixed on the front side of one of the bottom support frames, and two moving wheels distributed front and back are fixed on the bottom of the bottom support frame to facilitate the movement of the utility model.

[0016] Compared with the prior art, the present invention provides a defoaming device for nitrile latex production, which has the following beneficial effects:

[0017] 1. Add defoaming agent for nitrile latex into the capacity cylinder, extract the defoaming agent for nitrile latex inside the capacity cylinder through the suction tube, and then transport it to the connecting pipe through the L-shaped discharge pipe, and finally spray it into the latex mixing barrel through several spray holes at the bottom of the annular frame, so as to facilitate contact with the nitrile latex inside the latex mixing barrel, defoam it, and facilitate use.

[0018] 2. The motor drives the rotating shaft to rotate and drives the two rotating plates thereon to rotate inside the latex mixing barrel. At the same time, the nitrile latex added with the defoaming agent for nitrile latex inside the latex mixing barrel will flow inside the latex mixing barrel through a number of feed grooves, so that the defoaming agent for nitrile latex and the nitrile latex are fully and evenly mixed with each other, which is convenient for subsequent rapid defoaming. The several defoaming cones inside the feed grooves will puncture the bubbles in the nitrile latex, thereby achieving the purpose of defoaming the nitrile latex again and improving the defoaming effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a rear view of the overall structure of the utility model;

[0021] Figure 3 This is a cross-sectional view of the overall structure of the utility model;

[0022] Figure 4 This is a schematic diagram of the structure of the hybrid component of the present utility model;

[0023] Figure 5 This is a schematic diagram of the structure of the defoaming component of the utility model;

[0024] Figure 6 For the utility model Figure 3 Enlarged view of point A in the middle.

[0025] In the figure: 1 latex mixing barrel, 2 drive box, 3 feed inclined frame, 4 defoaming assembly, 5 support column, 6 mixing assembly, 7 barrel door, 8 bottom support frame, 9 control panel, 10 moving wheel, 11 feed port;

[0026] 41 capacity cylinder, 42 extraction tube, 43 extraction pump, 44 L-type discharge pipe, 45 connecting pipe, 46 annular frame, 47 spray hole, 48 electric valve, 61 rotating shaft, 62 rotating plate, 63 material trough, 64 bubble removal cone, 65 motor. DETAILED DESCRIPTION

[0027] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0028] like Figure 1-6As shown, the utility model provides a defoaming device for nitrile latex production, including a latex mixing barrel 1, a drive box 2 is fixedly provided on the top of the latex mixing barrel 1, two feed ports 11 are opened on the top of the latex mixing barrel 1, and feed inclined frames 3 are fixedly provided inside the two feed ports 11, so that when nitrile latex is added to the latex mixing barrel 1, the nitrile latex can be poured into the inside of 1 to reduce the generation of bubbles, the front hinge of the latex mixing barrel 1 is connected to the barrel door 7, the bottom sides of the latex mixing barrel 1 are fixed with bottom support frames 8, which are convenient for supporting the latex mixing barrel 1, and the bottom of the bottom support frame 8 is fixed with two moving wheels 10 distributed front and back to facilitate the movement of the utility model.

[0029] like Figure 1-3 As shown in Figure 6, a defoaming assembly 4 is provided on the top of the driving box 2 for initially defoaming the nitrile latex inside the latex mixing barrel 1. The defoaming assembly 4 includes a capacity cylinder 41, which is provided on the top of the driving box 2. A suction pump 43 is fixedly provided on the top of the driving box 2. A suction pipe 42 is fixedly provided at the suction port of the suction pump 43. The top of the suction pipe 42 passes through the driving box 2 and is fixedly connected to the bottom of the capacity cylinder 41. An annular frame 46 is provided on the top of the latex mixing barrel 1.

[0030] A number of evenly distributed spray holes 47 are provided at the bottom of the annular frame 46, and an L-shaped discharge pipe 44 is fixedly provided at the discharge port of the suction pump 43. The bottom end of the L-shaped discharge pipe 44 passes through the top of the drive box 2 and is fixedly provided with a connecting pipe 45, and the front and rear ends of the connecting pipe 45 are fixedly connected to the inside of the annular frame 46. An electric valve 48 is fixed on the suction pipe 42, and a support column 5 is fixed between the capacity cylinder 41 and the drive box 2.

[0031] like Figure 1-4 As shown, a mixing assembly 6 is provided inside the latex mixing barrel 1 for defoaming the nitrile latex again to ensure the defoaming effect. The mixing assembly 6 includes a rotating shaft 61, and a motor 65 is fixedly provided at the bottom end of the driving box 2. A control panel 9 for driving the extraction pump 43, the electric valve 48 and the motor 65 is fixedly provided on the front side of one of the bottom support frames 8.

[0032] By setting the defoaming component 4, first, a defoamer for nitrile latex is added to the capacity cylinder 41 (the defoamer for nitrile latex is a composite defoamer formed by a special process by combining modified polyethylene glycol ether, polydimethylsiloxane and mineral base oil with fatty alcohol, fatty acid ester, hydrocarbon and other products. Its characteristics are: it has a strong ability to eliminate fine bubbles in various emulsions, a fast bubble breaking speed, a long foam suppression time, and no rebound of defoaming, can eliminate bubbles of various sizes in the foaming system, has no effect on product performance, does not produce pinholes, and does not affect product firmness), then the control panel 9 is operated to control the pumping pump 43 in the top end of the drive box 2 to start working, and the electric valve 48 is operated to open;

[0033] The extraction pump 43 extracts the defoaming agent from the nitrile latex inside the capacity cylinder 41 through the extraction tube 42 and then transports it to the connecting tube 45 through the L-shaped discharge pipe 44, and finally sprays it into the latex mixing barrel 1 through several spray holes 47 at the bottom of the annular frame 46, so as to facilitate contact with the nitrile latex inside the latex mixing barrel 1, defoam it, and facilitate use.

[0034] like Figure 1-4 As shown in Figure 6, the top and bottom ends of the rotating shaft 61 are respectively connected between the top and bottom ends inside the latex mixing barrel 1 through bearings. Two rotating plates 62 are fixedly provided on the rotating shaft 61 to facilitate the rotation of the rotating shaft 61 to drive the rotating plates 62 to rotate. A number of evenly distributed feed grooves 63 are opened on the rotating plates 62. A number of mutually staggered defoaming cones 64 are fixed inside the feed grooves 63 to facilitate the bursting of bubbles appearing in the production of nitrile latex, thereby achieving the purpose of defoaming. The output shaft of the motor 65 passes through the top of the latex mixing barrel 1 and is fixedly connected to the top of the rotating shaft 61, so that the motor 65 drives the rotating shaft 61 to rotate.

[0035] By setting up the mixing component 6, after adding the defoaming agent for nitrile latex, the control panel 9 is operated to control the motor 65 at the bottom end of the driving box 2 to work, and the motor 65 drives the rotating shaft 61 to rotate and drives the two rotating plates 62 thereon to rotate inside the latex mixing barrel 1. At the same time, the nitrile latex added with the defoaming agent for nitrile latex inside the latex mixing barrel 1 will flow inside the latex mixing barrel 1 through a number of feed grooves 63, so that the defoaming agent for nitrile latex and the nitrile latex are fully mixed with each other, which is convenient for subsequent rapid defoaming. The several defoaming cones 64 inside the feed grooves 63 will puncture the bubbles in the nitrile latex, thereby achieving the purpose of defoaming the nitrile latex again and improving the defoaming effect.

[0036] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements shall fall within the scope of the present invention as claimed.

Claims

1. A defoaming device for producing nitrile latex, comprising a latex mixing barrel (1), characterized in that: A driving box (2) is fixedly provided on the top of the latex mixing barrel (1); A defoaming assembly (4) is provided on the top of the driving box (2) for initially defoaming the nitrile latex in the latex mixing barrel (1); The latex mixing barrel (1) is provided with a mixing assembly (6) for defoaming the nitrile latex again to ensure the defoaming effect; The defoaming assembly (4) includes a capacity cylinder (41), which is arranged on the top of the driving box (2). A suction pump (43) is fixedly provided at the top of the driving box (2). A suction pipe (42) is fixedly provided at the suction port of the suction pump (43). The top of the suction pipe (42) passes through the driving box (2) and is fixedly connected to the bottom of the capacity cylinder (41). An annular frame (46) is provided at the top of the latex mixing barrel (1), and a plurality of evenly distributed spray holes (47) are opened at the bottom of the annular frame (46).

2. A defoaming device for producing butadiene-acrylonitrile latex according to claim 1, characterized in that: The discharge port of the pump (43) is fixedly provided with an L-shaped discharge pipe (44), the bottom end of the L-shaped discharge pipe (44) passes through the top of the drive box (2) and is fixedly provided with a connecting pipe (45), and the front and rear ends of the connecting pipe (45) are fixedly connected to the inside of the annular frame (46), an electric valve (48) is fixedly provided on the pumping pipe (42), and a support column (5) is fixedly provided between the capacity cylinder (41) and the drive box (2).

3. A defoaming device for producing butadiene-acrylonitrile latex according to claim 2, characterized in that: The mixing assembly (6) includes a rotating shaft (61), the top and bottom ends of the rotating shaft (61) are respectively connected between the top and bottom ends inside the latex mixing barrel (1) through bearings, and two rotating plates (62) are fixed on the rotating shaft (61).

4. A defoaming device for producing nitrile latex according to claim 3, characterized in that: The rotating plate (62) is provided with a plurality of evenly distributed material penetration grooves (63), and a plurality of mutually staggered bubble removal cones (64) are fixedly provided inside the plurality of material penetration grooves (63).

5. A defoaming device for producing butadiene-acrylonitrile latex according to claim 4, characterized in that: A motor (65) is fixedly provided at the bottom end of the driving box (2), and an output shaft of the motor (65) passes through the top of the latex mixing barrel (1) and is fixedly connected to the top end of the rotating shaft (61).

6. A defoaming device for producing nitrile latex according to claim 5, characterized in that: The latex mixing barrel (1) is provided with two feed ports (11) on the top, and feed inclined frames (3) are fixedly provided inside the two feed ports (11). The front side hinge of the latex mixing barrel (1) is connected to a barrel door (7), and bottom support frames (8) are fixedly provided on both sides of the bottom of the latex mixing barrel (1).

7. A defoaming device for producing nitrile latex according to claim 6, characterized in that: A control panel (9) for driving a material extraction pump (43), an electric valve (48) and a motor (65) is fixedly provided on the front side of one of the bottom support frames (8), and two movable wheels (10) distributed front and back are fixedly provided on the bottom of the bottom support frame (8).

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