Solvent recovery device for processing ultraviolet light absorber

Abstract

The utility model relates to the technical field of ultraviolet light absorber processing, in particular to a solvent recovery device for ultraviolet light absorber processing, which comprises a bottom plate, a first box body fixedly connected to the upper end of the bottom plate, a second box body arranged on the right side of the first box body, and a guide frame arranged inside the second box body, the guide frame is obliquely arranged, the right side of the guide frame is of an open structure, a bent pipe is arranged in the guide frame, and gaps are reserved between the bent pipe and the front side, the rear side, the upper side and the lower side of the inner wall of the guide frame; due to the fact that the bent pipe is a zigzag pipeline, the contact area between water vapor and the outer wall of the bent pipe can be increased, meanwhile, cold water continuously flows through the interior of the bent pipe, the water vapor is liquefied when being cooled, and a liquefied solvent can flow to the bottom side of the interior of the second box body through the opening in the right side of the guide frame. And therefore, the purposes of conveniently recycling the liquid solvent, reusing the liquid solvent, avoiding resource waste and improving economic benefits are achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to ultraviolet absorber processing technical field, concretely is a solvent recovery unit for ultraviolet absorber processing. BACKGROUND

[0002] At present, the ideal ultraviolet absorber (light stabilizer) is mostly compound type, especially the salicylate, benzophenone, benzotriazole, substituted acrylonitrile, triazine and hindered amine compound, which can achieve more ideal effect than any single ultraviolet absorber; in the ultraviolet absorber production process, with the intensification of chemical reaction, a lot of liquid solvent will be produced, if the liquid solvent in the ultraviolet absorber is not separated, it will be not conducive to improve the purity of the ultraviolet absorber and reduce the use effect of the ultraviolet absorber.

[0003] In the process of separating the liquid solvent from the ultraviolet absorber, the existing device includes a recovery box (the recovery box is used to contain the mixture of the liquid solvent and the ultraviolet absorber to be separated), the liquid solvent can be evaporated into water vapor by heating, and then the water vapor is discharged, so that the liquid solvent and the ultraviolet absorber are separated.

[0004] But the above-mentioned device can only realize the recovery of the separated ultraviolet absorber, but the evaporation gas is discharged, and since the evaporation gas usually contains a large amount of valuable solvent components, it will cause resource waste and reduce economic benefits, so it is necessary to provide a solvent recovery device for ultraviolet absorber processing to solve the above problems. SUMMARY

[0005] The utility model discloses a solvent recovery device for ultraviolet absorber processing, which has the characteristics of facilitating the recovery of liquid solvent, avoiding resource waste and improving economic benefits.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a solvent recovery device for ultraviolet absorber processing, comprising a bottom plate, the upper end of the bottom plate is fixedly connected with a first box, the right side of the first box is provided with a second box, the inside of the second box is provided with a guide frame, the guide frame is inclined and the right side is an open structure, the inside of the guide frame is provided with a bend pipe, the front side, the back side, the upper side and the lower side of the bend pipe and the inner wall of the guide frame all have gaps, one end of the bend pipe is fixedly connected with a water inlet pipe penetrating the guide frame and the second box, the other end of the bend pipe is fixedly connected with a water outlet pipe penetrating the guide frame and the second box, a rectangular air vent penetrating the left end face of the second box is communicated between the first box and the guide frame;

[0007] The first box body is internally provided with a heat conduction plate, and a heating plate is arranged between the heat conduction plate and the bottom of the inner wall of the first box body.

[0008] In order to fix the guide frame and facilitate the fixation of the elbow pipe, the guide frame and the inner wall of the second box body are fixedly connected with two fixed plates, and the elbow pipe and the guide frame are fixedly connected with a plurality of fixed rods.

[0009] In order to add the mixture of the liquid solvent and the ultraviolet absorbent into the first box body, the upper end of the bottom plate is provided with a top cover, the upper end of the top cover is connected with a feeding valve pipe, and the upper end of the feeding valve pipe is provided with an adding hopper.

[0010] In order to communicate the second box body with the outside world, prevent the pressure in the second box body from being too large, and prevent impurities from the outside world from entering the inside of the second box body, the upper end of the second box body is provided with a ventilation groove, and the inside of the ventilation groove is provided with a filter screen plate.

[0011] In order to facilitate the outflow of the liquid solvent in the second box body, the lower end of the second box body is connected with a discharge valve pipe.

[0012] In order to facilitate the connection of the pipeline for inputting cold water and the pipeline for discharging cold water, the lower end of the water inlet pipe is provided with a first connector, and the lower end of the water outlet pipe is provided with a second connector.

[0013] In order to facilitate the support and fixation of the second box body, the second box body and the bottom plate are fixedly connected with two left and right distributed connecting plates.

[0014] Compared with the prior art, the utility model has the advantages of the following:

[0015] The mixture of liquid solvent and ultraviolet absorber is added into the interior of the first box, then the valve of the feeding valve pipe is closed, then the liquid solvent is evaporated into water vapor through the heating plate, the water vapor enters into the interior of the guide frame through the rectangular air vent, and passes through the gap between the bent pipe and the interior of the guide frame, and since the bent pipe is a zigzag pipe, the contact area between the water vapor and the outer wall of the bent pipe is increased, meanwhile, cold water continuously flows in the interior of the bent pipe, the water vapor is liquefied when meeting the cold water, and the liquefied solvent flows to the bottom side of the interior of the second box through the opening on the right side of the guide frame, in this way, the liquid solvent is conveniently recycled, so that the liquid solvent can be reused, resource waste is avoided, and the economic benefit is improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a whole front view of the utility model;

[0017] Figure 2 It is a whole front view of the utility model; Figure 1 It is an enlarged view of A in the figure;

[0018] Figure 3 It is an external structure view of the guide frame of the utility model.

[0019] In the figure: 1, bottom plate; 2, first box; 3, heat conduction plate; 4, heating plate; 5, second box; 6, guide frame; 7, rectangular air vent; 8, bent pipe; 9, water inlet pipe; 10, water outlet pipe; 11, discharge valve pipe; 12, first joint; 13, second joint; 14, fixed plate; 15, fixed rod; 16, feeding valve pipe; 17, adding hopper; 18, top cover; 19, air groove; 20, filter screen plate. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical scheme and advantages of the utility model more clearly, the utility model is further described in detail below by combining with the drawings and examples.It should be understood that the specific examples described herein are only used to explain the utility model, and are not used to limit the utility model.

[0021] In the description of the utility model, it should be understood that the orientation or position relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as limiting the device or element indicated or implied to have a specific orientation, to be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the utility model.In addition, in the description of the utility model, the meaning of "multiple" is two or more than two, unless otherwise specifically limited.

[0022] Please refer to Figures 1 to 3 The utility model provides a solvent recovery device for ultraviolet absorbent processing, including the bottom plate 1, the upper end fixed connection of bottom plate 1 has the first box 2, the right of first box 2 is provided with second box 5, the inside of second box 5 is provided with guide frame 6, and guide frame 6 is inclined and sets up and right side is the open structure, the inside of guide frame 6 is provided with elbow pipe 8, and elbow pipe 8 and the front side, rear side, upside and downside of guide frame 6 inner wall all leave the gap, and one end of elbow pipe 8 is fixedly connected with the water inlet pipe 9 of penetrating guide frame 6 and second box 5, the other end of elbow pipe 8 is fixedly connected with the water outlet pipe 10 of penetrating guide frame 6 and second box 5, and the rectangular vent 7 of penetrating second box 5 left end face is communicated between first box 2 and guide frame 6;

[0023] The inside of first box 2 is installed with heat conduction plate 3, and heating plate 4 is arranged between heat conduction plate 3 and the bottom of first box 2 inner wall.

[0024] In the embodiment: when using, the mixture of liquid solvent and ultraviolet absorbent is added to the inside of first box 2, then the valve for sealing of feed valve pipe 16 is closed, then heating plate 4 is opened, and then heat is conducted by heat conduction plate 3, the liquid solvent can be evaporated into water vapor, the air pressure in the inside of first box 2 increases, water vapor enters the inside of guide frame 6 through rectangular vent 7, because the front side, rear side, upside and downside of elbow pipe 8 and guide frame 6 inner wall all leave the gap, water vapor can pass through, and because elbow pipe 8 is a tortuous pipeline, the contact area of water vapor and the outer wall of elbow pipe 8 can be increased, at the same time, the pipeline of inputting cold water continuously sends cold water into the inside of elbow pipe 8 from water inlet pipe 9 and continuously discharges the cold water from the pipeline of discharging cold water through water outlet pipe 10, at the same time, water vapor can be liquefied when meeting cold, and because guide frame 6 is inclined and set up and right side is the open structure, the liquefied solvent can flow to the bottom side in the inside of second box 5 through the opening of right side of guide frame 6, and the liquid solvent is collected, through the way, the liquid solvent can be conveniently recycled, so that the liquid solvent can be reused, resource waste is avoided, and the purpose of improving economic benefit is achieved.

[0025] As a technical optimization scheme of the utility model, two fixed plates 14 are fixedly connected with the inner wall of guide frame 6 and second box 5, and a plurality of fixed rods 15 are fixedly connected between elbow pipe 8 and guide frame 6.

[0026] In the embodiment: two fixed plates 14 are arranged to facilitate the fixation of guide frame 6, and a plurality of fixed rods 15 are arranged to facilitate the fixation of elbow pipe 8.

[0027] As a technical optimization scheme of the utility model, the upper end of the bottom plate 1 is provided with a top cover 18, the upper end of the top cover 18 is provided with a feeding valve pipe 16, and the upper end of the feeding valve pipe 16 is provided with an adding hopper 17.

[0028] In the embodiment, the mixture of liquid solvent and ultraviolet absorbent can be added into the first box body 2 by opening the valve of the feeding valve pipe 16.

[0029] As a technical optimization scheme of the utility model, the upper end of the second box body 5 is provided with a ventilation groove 19, and the inside of the ventilation groove 19 is provided with a filter screen plate 20.

[0030] In the embodiment, the second box body 5 is communicated with the outside through the ventilation groove 19, so that the pressure in the second box body 5 is prevented from being too large, and the filter screen plate 20 is arranged to prevent impurities from the outside from entering the inside of the second box body 5.

[0031] As a technical optimization scheme of the utility model, the lower end of the second box body 5 is provided with a discharge valve pipe 11.

[0032] In the embodiment, when the liquid solvent is used, the valve of the discharge valve pipe 11 is opened, so that the liquid solvent in the second box body 5 can flow out.

[0033] As a technical optimization scheme of the utility model, the lower end of the water inlet pipe 9 is provided with a first joint 12, and the lower end of the water outlet pipe 10 is provided with a second joint 13.

[0034] In the embodiment, the first joint 12 is arranged to connect the pipeline for inputting cold water, and the second joint 13 is arranged to connect the pipeline for discharging cold water.

[0035] As a technical optimization scheme of the utility model, the second box body 5 and the bottom plate 1 are fixedly connected with two left and right distributed connecting plates.

[0036] In the embodiment, the two connecting plates are arranged to support and fix the second box body 5.

[0037] Working principle: in use, first open the valve of the feed valve pipe 16, then add the mixture of liquid solvent and ultraviolet absorbent into the first box 2 through the adding hopper 17, then close the valve of the feed valve pipe 16 for sealing, then turn on the heating plate 4, and then the heat conducted by the heat conducting plate 3 can evaporate the liquid solvent into water vapor, the air pressure in the first box 2 will increase, prompting the water vapor to enter the inside of the guide frame 6 through the rectangular air vent 7, since the elbow pipe 8 and the front side, rear side, upper side and lower side of the inner wall of the guide frame 6 all have gaps, so as to supply the water vapor to pass through, and since the elbow pipe 8 is a zigzag pipe, so as to increase the contact area of the water vapor and the outer wall of the elbow pipe 8, at the same time, the pipeline for inputting cold water can continuously send cold water into the inside of the elbow pipe 8 through the water inlet pipe 9, and continuously discharge the cold water through the pipeline for discharging the water outlet pipe 10, at the same time, the water vapor will be liquefied when it meets cold, and since the guide frame 6 is inclined and the right side is an open structure, so as to make the liquefied solvent flow to the bottom side of the inside of the second box 5 through the opening of the right side of the guide frame 6, so as to collect the liquid solvent, in this way, so as to achieve the purpose of recycling the liquid solvent, so as to be reused, avoid resource waste, and improve economic benefit.

[0038] When the liquid solvent is used, the valve of the discharge valve pipe 11 can be opened, so that the liquid solvent in the second box 5 can flow out.

[0039] The above is only a preferred embodiment of the present application, and is not used to limit the present application, any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A solvent recovery device for processing ultraviolet absorbers, comprising a base plate (1), characterized in that: The upper end of the base plate (1) is fixedly connected to a first box (2). A second box (5) is provided to the right of the first box (2). A guide frame (6) is provided inside the second box (5). The guide frame (6) is inclined and has an open structure on the right side. A bent pipe (8) is provided inside the guide frame (6). The bent pipe (8) has gaps with the front, back, upper and lower sides of the inner wall of the guide frame (6). One end of the bent pipe (8) is fixedly connected to a water inlet pipe (9) that passes through the guide frame (6) and the second box (5). The other end of the bent pipe (8) is fixedly connected to a water outlet pipe (10) that passes through the guide frame (6) and the second box (5). A rectangular vent (7) that passes through the left end face of the second box (5) is connected between the first box (2) and the guide frame (6). A heat-conducting plate (3) is installed inside the first box (2), and a heating plate (4) is provided between the heat-conducting plate (3) and the bottom of the inner wall of the first box (2).

2. The solvent recovery device for processing ultraviolet absorbers according to claim 1, characterized in that: The guide frame (6) is fixedly connected to the inner wall of the second box (5) by two fixing plates (14), and the bent pipe (8) is fixedly connected to the guide frame (6) by multiple fixing rods (15).

3. The solvent recovery device for processing ultraviolet absorbers according to claim 1, characterized in that: The top of the base plate (1) is fitted with a top cover (18), and the top of the top cover (18) is connected through a feed valve pipe (16). The top of the feed valve pipe (16) is fitted with an addition hopper (17).

4. The solvent recovery device for processing ultraviolet absorbers according to claim 1, characterized in that: The upper end of the second housing (5) is provided with a ventilation groove (19), and a filter screen (20) is installed inside the ventilation groove (19).

5. The solvent recovery device for processing ultraviolet absorbers according to claim 1, characterized in that: The lower end of the second housing (5) is connected to a discharge valve pipe (11).

6. The solvent recovery device for processing ultraviolet absorbers according to claim 1, characterized in that: The lower end of the water inlet pipe (9) is equipped with a first connector (12), and the lower end of the water outlet pipe (10) is equipped with a second connector (13).

7. The solvent recovery device for processing ultraviolet absorbers according to claim 1, characterized in that: The second box (5) is fixedly connected to the bottom plate (1) by two connecting plates distributed on the left and right.

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