Ultraviolet light initiation device for coating emulsion modification

Abstract

The utility model discloses an ultraviolet light initiation device for coating emulsion modification. The ultraviolet light initiation device comprises a first storage tank, a first initiation tank, a second storage tank, a mixing tank and a second initiation tank, wherein the first storage tank is communicated with the first initiation tank, a discharge port of the first initiation tank and a discharge port of the second storage tank are communicated to the mixing tank, and a discharge port of the mixing tank is communicated to the second initiation tank. Each of the first initiation tank and the second initiation tank comprises a tank body, a spiral flow channel unit, a rotatable liquid inlet unit and an ultraviolet radiation unit, each spiral flow channel unit comprises a central shaft, a driving motor and a spiral flow channel, and each spiral flow channel is a plate spirally wound along the central shaft and extends to the bottom of the corresponding tank body; the spiral runner is used as a bearing platform of the emulsion, so that the surface area of the emulsion can be effectively increased, the ultraviolet light initiation efficiency can be improved, and meanwhile, the equipment has the advantages of small occupied area, simple structure and the like.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of paint preparation, specifically to a kind of ultraviolet light initiation device for paint emulsion modification. BACKGROUND

[0002] In the preparation process of coating, material modification treatment is needed for optimizing coating performance, such as the current commonly used modification of acrylic acid by organosilicon, which can make it have better super weather resistance, high stain resistance and low temperature performance. But the commonly used thermal initiation system, with the increase of temperature, the gel content of emulsion increases, when organosilicon unsaturated monomer and acrylate monomer emulsion copolymerize, the siloxane group in organosilicon monomer often hydrolyzes and condenses in aqueous solution, forming early crosslinking structure, leading to unstable polymerization reaction. The inventor has published a paper on this problem "Research on Ultraviolet Light Initiated Organosiloxane Modified Acrylate Emulsion" (published in "Chemical Technology and Development"), which can effectively solve the problems existing in the thermal initiation system. The research results further to scale production found that the current equipment for ultraviolet light initiation is not mature, and the current research mostly uses the scheme of directly irradiating the reaction container with ultraviolet lamp, which is obviously only suitable for laboratory work and not suitable for large-scale production. SUMMARY

[0003] The utility model aims at providing a kind of ultraviolet light initiation device for paint emulsion modification to solve the problems existing in the prior art.

[0004] In order to achieve the above purpose, the technical scheme of the utility model provides a kind of ultraviolet light initiation device for paint emulsion modification, which comprises a first storage tank, a first initiation tank, a second storage tank, a mixing tank and a second initiation tank. The first storage tank is communicated with the first initiation tank, the discharge outlet of the first initiation tank and the discharge outlet of the second storage tank are communicated to the mixing tank, and the discharge outlet of the mixing tank is communicated to the second initiation tank.

[0005] Further, the first initiation tank and the second initiation tank comprise a tank body, a spiral flow channel unit, a liquid turning unit and an ultraviolet irradiation unit. The tank body is a hollow rotary cavity structure, the upper part is provided with a liquid turning unit, the lower part is provided with a discharge pipe, a plurality of through grooves are arranged on the side of the tank body, and the ultraviolet irradiation unit is arranged at the through grooves.

[0006] Further, the ultraviolet irradiation unit comprises a shell, an ultraviolet emission device and an inner light transmission plate. The shell covers the through groove, the ultraviolet emission device is arranged in the shell, and the inner light transmission plate is arranged between the ultraviolet emission device and the inner cavity of the tank body.

[0007] Further, the spiral flow channel unit comprises a central shaft, a driving motor and a spiral flow channel, the central shaft is arranged in the center of the inner cavity of the tank body and is provided with the spiral flow channel outside, the upper portion and the lower portion of the central shaft penetrate through the top plate and the bottom plate of the tank body and are rotatably connected with the tank body, and the lower portion of the central shaft is connected with the driving motor.

[0008] Further, the upper portion of the central shaft is provided with a blind hole, the opening area of the blind hole at the top of the central shaft is provided with a rotatable liquid inlet unit, the bottom of the blind hole extends to the area where the spiral flow channel is located, and the central shaft is provided with an opening on the side wall of the spiral flow channel area, which is communicated with the blind hole.

[0009] Further, the spiral flow channel is a plate material spirally wound along the central shaft and extending to the bottom of the tank body, and the liquid blocking plate is arranged at the edge of the spiral flow channel away from the central shaft.

[0010] Further, the liquid distribution pipe is arranged at the opening of the side wall of the central shaft, the liquid distribution pipe is a tubular structure with one end closed, the opening side is communicated with the blind hole through the opening of the side wall of the central shaft, and a plurality of arrayed liquid outlet holes are arranged on the side of the liquid distribution pipe in the diameter direction of the tank body.

[0011] Further, the rotatable liquid inlet unit comprises a funnel, an upper connecting cover and a fixing rod, wherein the funnel is arranged at the opening of the blind hole and rotates with the central shaft, the fixing rod is fixed to the top surface of the tank body, and one side of the upper connecting cover is fixed to the fixing rod; the upper connecting cover comprises an inner tube and an outer cover, the inner tube, the outer cover, the funnel and the central shaft are coaxial, the inner diameter of the outer cover is larger than the outer diameter of the top of the funnel, and the inner tube is arranged in the center of the outer cover.

[0012] Further, a plurality of liquid distribution structures are arranged on the spiral flow channel, the liquid distribution structure comprises a liquid blocking high plate and a liquid distribution inclined plate, the liquid blocking high plate is arranged on the upper portion of the liquid blocking plate, the liquid distribution inclined plate is arranged on the spiral flow channel and is arranged in an inclined manner, and a plurality of liquid passing holes are arranged on the bottom of the liquid distribution inclined plate, wherein the liquid passing holes on the side close to the liquid blocking high plate have a lower distribution density.

[0013] The utility model provides a kind of ultraviolet light initiation device for coating emulsion modification, adopt spiral flow channel as the bearing platform of emulsion, can effectively improve the surface area of emulsion, it is favorable to improve ultraviolet light initiation efficiency, while equipment has the advantages such as small floor space, simple structure etc..On specific structure, by being provided with multiple liquid distribution devices on spiral flow channel, cooperate with the rotation of spiral flow channel, can effectively realize that emulsion is evenly spread on spiral flow channel.It can be rotated into liquid unit can realize the injection of rotating spiral flow channel, compared with rotating interface, structure is simpler, manufacturing cost is lower. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the overall scheme schematic diagram of the utility model.

[0015] Figure 2 is a first initiation tank, second initiation tank schematic diagram of the utility model.

[0016] Figure 3 is a first initiation tank, second initiation tank partial cutaway schematic diagram of the utility model.

[0017] Figure 4 is the utility model can turn into liquid unit area local amplification schematic diagram.

[0018] Figure 5 is the utility model spiral runner unit area local amplification schematic diagram.

[0019] Figure 6 is the utility model liquid distribution structure area local amplification schematic diagram.

[0020] Figure 7 is the utility model liquid distribution structure area overhead schematic diagram. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be apparently and completely described in conjunction with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor fall within the protection scope of the utility model.

[0022] As shown in the accompanying drawings, Figures 1-7 The utility model relates to a kind of ultraviolet light initiation devices for coating emulsion modification, including first storage tank 1, first initiation tank 2, second storage tank 3, mixing tank 4, second initiation tank 5.

[0023] Among them, first storage tank 1 is communicated with first initiation tank 2, the discharge port of first initiation tank 2 and the discharge port of second storage tank 3 are communicated to mixing tank 4, and the discharge port of mixing tank is communicated to second initiation tank 5.

[0024] Liquid pump can be provided on the above-mentioned tank body connecting pipe, first storage tank 1, second storage tank 3, mixing tank 4 and liquid pump are all existing products on the market, and its specific structure does not belong to the protection content of the present application.

[0025] Based on the above device, the applicant realizes the following ultraviolet light initiation scheme: a certain proportion of acrylic acid, emulsifier (OP-10, SDS), initiator and water are added to the first storage tank 1, stirred uniformly, and then introduced into the first initiation tank 2 for ultraviolet light irradiation. After the light treatment, the mixture is transported to the mixing tank 4 in the second storage tank 3, stirred uniformly, and then introduced into the second initiation tank 5 for ultraviolet irradiation. The mixture treated in the second initiation tank 5 is adjusted for p H value, and a polymerization inhibitor is added for treatment to complete the ultraviolet initiation process. The above process is only used to generally describe the use of each tank of the ultraviolet light initiation device, and does not constitute a limitation on the scheme.

[0026] As shown in the accompanying Figures 2-3 , the first initiation tank 2 and the second initiation tank 5 include a tank body G1, a spiral flow channel unit G2, a liquid turning-in unit G3, and an ultraviolet irradiation unit G4. The components of the first initiation tank 2 and the second initiation tank 5 are consistent in overall structure, only differing in size.

[0027] The tank body G1 is a hollow rotary cavity structure, the upper part is provided with the liquid turning-in unit G3, and the lower part is provided with a discharge pipe G11. A plurality of through grooves G12 are arranged on the side of the tank body G1, and the ultraviolet irradiation unit G4 is arranged at the through grooves G12.

[0028] The ultraviolet irradiation unit G4 includes a shell G41, an ultraviolet emitting device G42 (which can be a high-pressure mercury lamp), and an inner light-transmitting plate G43. The shell can cover the through grooves G12, the ultraviolet emitting device is arranged inside the shell, and the inner light-transmitting plate G43 is arranged between the ultraviolet emitting device and the inner cavity of the tank body G1. The inner light-transmitting plate G43 is made of smooth material such as high-boron glass and polycarbonate (PC) which has ultraviolet transmission capability.

[0029] As shown in the accompanying Figure 3 , 4 , 5, the spiral flow channel unit G2 includes a central shaft G21, a driving motor G22, and a spiral flow channel G23. The central shaft G21 is arranged in the center of the inner cavity of the tank body G1, and the outer side is provided with the spiral flow channel G23. The upper part and the lower part of the central shaft G21 penetrate through the top plate and the bottom plate of the tank body G1 and are rotatably connected to the tank body G1. The lower part of the central shaft G21 is connected to the driving motor G22. The upper part of the central shaft G21 is provided with a blind hole G211, the opening area of the blind hole G211 at the top of the central shaft G21 is provided with the liquid turning-in unit G3, the bottom of the blind hole G211 extends to the region where the spiral flow channel G23 is located, and the central shaft G21 is provided with an opening on the side wall of the spiral flow channel G23 region which is in communication with the blind hole G21, so that the emulsion flowing from the liquid turning-in unit G3 to the blind hole G211 enters the spiral flow channel G23.

[0030] The spiral flow channel G23 is a plate material spirally wound along the central axis G21, extending to the bottom of the tank body G1, and a liquid blocking plate G231 is arranged at the edge of the spiral flow channel G23 away from the central axis G21.

[0031] Further, a liquid distribution pipe G232 is arranged at the opening of the side wall of the central axis G21, which is a tubular structure with one end closed, and the opening side communicates with the blind hole G211 through the opening of the side wall of the central axis G21. A plurality of arrayed liquid outlet holes are arranged on the side of the liquid distribution pipe G232 along the diameter direction of the tank body, which can realize the flow of emulsion into the spiral flow channel G23 in a relatively uniform state.

[0032] The rotatable liquid inlet unit G3 includes a funnel G31, an upper connecting cover G32, and a fixed rod G33, wherein the funnel G31 is arranged at the opening of the blind hole G211 and rotates with the central axis G21, the fixed rod G33 is fixed to the top surface of the tank body G1, and one side of the upper connecting cover G32 is fixed to the fixed rod G33. The upper connecting cover G32 includes an inner tube G321 and an outer cover G322, which are coaxial with the funnel G31 and the central axis G21. The inner diameter of the outer cover G322 is larger than the outer diameter of the top of the funnel G31, and the inner tube G321 is arranged in the center of the outer cover G322. In use, the outer cover G322 covers the upper part of the funnel G31, and different funnels G31 are in contact, and the emulsion flows into the funnel G31 through the inner tube G321 to realize liquid inlet.

[0033] Further, as shown in the accompanying drawings, Figure 6 , 7 A plurality of liquid distribution structures G233 are arranged on the spiral flow channel G23, which include a liquid blocking high plate G2331 and a liquid distribution inclined plate G2332. The liquid blocking high plate G2331 is arranged on the upper part of the liquid blocking plate G231, and the liquid distribution inclined plate G2332 is arranged on the spiral flow channel G23 and is inclined, that is, one end of the liquid distribution inclined plate G2332 is connected to the liquid blocking high plate G2331, and the other end is connected to the central axis G21 which is lower than the position. The bottom of the liquid distribution inclined plate G2332 is provided with a plurality of liquid passing holes G2333, wherein the distribution density of the liquid passing holes G2333 near the liquid blocking high plate G2331 is relatively low.

[0034] As shown in the accompanying drawings, Figure 7 is a top view of the liquid distribution structure G233, from which it can be seen that the liquid distribution inclined plate G2332 is inclined, that is, one end is connected to the liquid blocking high plate G2331, and the other end is connected to the circumference of the central axis rather than the center. When the spiral flow channel G23 rotates, the liquid on it tends to gather at the edge. The liquid blocking high plate G2331 and the liquid distribution inclined plate G2332 can block the liquid, and the liquid passing holes G2333 on the outside have a smaller distribution density, while the liquid passing holes G2333 on the inside have a larger distribution density, so that the excess liquid on the outside flows to the inside.

[0035] It should be noted that unless specifically stated and limited otherwise, the terms "mounting", "connected", "connection", "fixed", "set", and the like should be interpreted broadly, for example, can be fixed connection, can also be detachable connection, or integrated; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

Claims

1. An ultraviolet light initiation device for modifying a paint emulsion, characterized by, The application relates to a material mixing device, which comprises a first storage tank, a first initiating tank, a second storage tank, a mixing tank and a second initiating tank.

2. The UV initiator device for modifying paint emulsion according to claim 1, characterized in that, The first initiating tank and the second initiating tank comprise a tank body, a spiral flow channel unit, a liquid turning unit and an ultraviolet irradiation unit; the tank body is a hollow rotary cavity structure, the upper part of the tank body is provided with the liquid turning unit, the lower part of the tank body is provided with a discharging pipe, a plurality of through grooves are arranged on the side of the tank body, and the ultraviolet irradiation unit is arranged at the through grooves.

3. The UV initiator device for modifying paint emulsion according to claim 2, characterized in that, The ultraviolet irradiation unit comprises a shell, an ultraviolet emitting device and an inner light transmission plate; the shell covers the through grooves, the ultraviolet emitting device is arranged in the shell, and the inner light transmission plate is arranged between the ultraviolet emitting device and the inner cavity of the tank body.

4. The UV initiator device for modifying paint emulsion according to claim 2, characterized in that, The spiral flow channel unit comprises a central shaft, a driving motor and a spiral flow channel; the central shaft is arranged in the center of the inner cavity of the tank body, the outer side of the central shaft is provided with the spiral flow channel, the upper part and the lower part of the central shaft penetrate through the top plate and the bottom plate of the tank body and are rotatably connected with the tank body, and the lower part of the central shaft is connected with the driving motor.

5. The UV initiator device for modifying paint emulsions according to claim 4, characterized in that, The upper part of the central shaft is provided with a blind hole, the top blind hole opening area of the central shaft is provided with the liquid turning unit, the bottom of the blind hole extends to the area where the spiral flow channel is located, and the central shaft is provided with an opening on the side wall of the spiral flow channel area, which is communicated with the blind hole.

6. The UV initiator device for modifying paint emulsion according to claim 5, characterized in that, The spiral flow channel is a plate material spirally wound along the central shaft and extending to the bottom of the tank body, and a liquid blocking plate is arranged at the edge of the spiral flow channel away from the central shaft.

7. The UV initiator device for modifying paint emulsions according to claim 6, characterized in that, A liquid distribution pipe is arranged at the opening of the side wall of the central shaft; the liquid distribution pipe is a tubular structure with one end closed, the opening side is communicated with the blind hole through the opening of the side wall of the central shaft, and a plurality of arrayed liquid outlet holes are arranged on the side of the liquid distribution pipe along the diameter direction of the tank body.

8. The UV initiator device for modifying paint emulsions according to claim 7, characterized in that, The liquid turning unit comprises a funnel, an upper connecting cover and a fixing rod; the funnel is arranged at the opening of the blind hole and rotates with the central shaft, the fixing rod is fixed to the top surface of the tank body, and one side of the upper connecting cover is fixed to the fixing rod; the upper connecting cover comprises an inner tube and an outer cover; the inner tube, the outer cover, the funnel and the central shaft are coaxial, the inner diameter of the outer cover is larger than the outer diameter of the top of the funnel, and the inner tube is arranged in the center of the outer cover.

9. The UV initiator device for modifying a paint emulsion according to claim 8, wherein, A plurality of liquid distribution structures are arranged on the spiral flow channel; the liquid distribution structure comprises a liquid blocking high plate and a liquid distribution inclined plate; the liquid blocking high plate is arranged on the upper part of the liquid blocking plate, the liquid distribution inclined plate is arranged on the spiral flow channel and is arranged in an inclined manner, and a plurality of liquid passing holes are arranged on the bottom of the liquid distribution inclined plate; the liquid passing holes on the side close to the liquid blocking high plate have a lower distribution density.

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