Recovery and cyclic utilization device for solvent in styrene-acrylic resin production

Abstract

The invention discloses a solvent recycling device in styrene-acrylic resin production, which comprises a frame, the right side of the upper part of the frame is fixedly connected with a filtering mechanism, the right side of the lower part of the frame is fixedly connected with a liquid storage barrel I, the left side of the liquid storage barrel I is fixedly connected with a water pump, and the upper part of the left side of the frame is fixedly connected with a distillation kettle; the left side of the lower portion of the frame is fixedly connected with a second liquid storage barrel, and the output end of the water pump is fixedly connected with a conveying assembly. Solid impurities and insoluble particles of a solvent can be effectively removed through the arranged filtering mechanism, the solid impurities and the insoluble particles are prevented from entering the distillation device, pipeline blockage is avoided, the distillation process is smoother, the distillation efficiency is improved, and the equipment maintenance cost is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of styrene-acrylic resin, and particularly relates to a device for recycling solvents in the production of styrene-acrylic resin. Background Art

[0002] During the production process of styrene-acrylic resin, a large amount of materials such as waste and residual liquid containing solvents will be generated. These solvents not only have a relatively high cost, but also cause serious environmental pollution if discharged randomly. Therefore, recycling solvents in the production of styrene-acrylic resin has important economic and environmental protection significance.

[0003] Currently, in the field of solvent recovery in the production of styrene-acrylic resin, the common operation process is to first introduce the materials containing solvents into a mixing tank. In the mixing tank, according to the material characteristics and recovery requirements, specific solvents or additives such as water are added, and then the stirring device is started. The stirring device promotes the full contact of the target solvent with other components in the materials, enabling the solvent to dissolve or disperse in the liquid, and initially realizing the mixing and separation preparation of different components. However, simply completing the stirring and mixing is not sufficient to meet the subsequent recovery treatment requirements.

[0004] After stirring and mixing, there are often some solid impurities, insoluble particles, and polymers in the materials. If these impurities are not removed and directly enter the subsequent recovery process, they will cause blockage of the pipelines of the distillation device, affecting the distillation efficiency and the service life of the equipment; for the adsorption separation process, they will reduce the adsorption effect of the adsorbent and cause the adsorbent to become saturated prematurely; in the extraction process, they will interfere with the extraction process and reduce the extraction purity and recovery rate.

[0005] Therefore, a device for recycling solvents in the production of styrene-acrylic resin is needed. Summary of the Invention

[0006] The main purpose of the present invention is to provide a device for recycling solvents in the production of styrene-acrylic resin, which can effectively solve the above problems.

[0007] To achieve the above purpose, the technical solution adopted by the present invention is as follows:

[0008] A device for recycling solvents in the production of styrene-acrylic resin includes a frame. A filtering mechanism is fixedly connected to the upper right side of the frame. A first liquid storage barrel is fixedly connected to the lower right side of the frame. A water pump is fixedly connected to the left side of the first liquid storage barrel. A distillation kettle is fixedly connected to the upper left side of the frame. A second liquid storage barrel is fixedly connected to the lower left side of the frame. The output end of the water pump is fixedly connected to a conveying component.

[0009] Preferably, the filtering mechanism includes a liquid guiding component which is fixedly connected to the right side of the upper part of the frame. A stirring component is fixedly connected to the lower part of the inner cavity of the liquid guiding component. A stirring barrel is fixedly connected to the upper part of the stirring component. A cylinder is slidably connected to the outer arc surface of the stirring barrel. A feeding hole is formed in the upper end of the stirring barrel. Limited positions are symmetrically and fixedly connected to one side of the upper end of the stirring barrel far from its axis. A number of through holes are annularly arranged on the lower side of the outer surface of the stirring barrel.

[0010] Preferably, a number of filter plates are annularly distributed and fixedly connected to the lower side of the outer arc surface of the cylinder. Two handles are symmetrically and fixedly connected to one side of the upper end of the cylinder far from its axis.

[0011] Preferably, the liquid guiding component includes a fixed cylinder which is fixedly connected to the right side of the upper part of the frame. A support ring is fixedly connected to the lower side of the inner arc surface of the fixed cylinder. A liquid outlet hole is formed in the middle of the bottom wall of the inner cavity of the fixed cylinder.

[0012] Preferably, the stirring component includes a support seat and a motor. The support seat is fixedly connected to the inner arc surface of the support ring. The motor is fixedly connected to the lower right part of the outer arc surface of the fixed cylinder. A dial rod is rotatably connected to the middle of the upper end of the support seat. A gear set is fixedly connected to the middle of the upper wall of the inner cavity of the support seat. The gear set is composed of two meshing bevel gears. A rotating rod is fixedly connected to the middle of the bevel gear in the vertical direction.

[0013] Preferably, the left end and the right end of the rotating rod are respectively rotatably connected to the left wall and the right wall of the inner cavity of the support seat. The output end of the motor penetrates through the outer surface of the fixed cylinder and is fixedly connected to the right end of the rotating rod through a coupling.

[0014] Preferably, the conveying component includes an infusion tube which is fixedly connected to the output end of a water pump. The end of the infusion tube far from the water pump is fixedly connected to the upper right part of the outer arc surface of a distillation kettle. A stud is threadedly connected to the upper rear side of the vertical part of the outer arc surface of the infusion tube. A sealing gasket is fixedly connected to the front end of the stud. Two semi-circular blocks are fixedly connected to the upper part of the inner cavity of the vertical part of the infusion tube. A fixing plate is fixedly connected to the side where the two semi-circular blocks are close to each other.

[0015] Preferably, a hole is formed in the middle of the fixing plate.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The filtering mechanism provided by the present invention can effectively remove solid impurities and insoluble particles in the solvent, prevent them from entering the distillation device, avoid pipeline blockage, make the distillation process smoother, improve the distillation efficiency, and reduce the equipment maintenance cost. At the same time, the filtered solvent is sent into the distillation kettle through the conveying component for distillation separation. Meanwhile, the conveying component can ensure that the distillation device is in a sealed state, effectively avoiding the leakage of materials from the device during the distillation process, preventing material loss, ensuring the sufficiency of distillation raw materials, and maintaining the continuity of the distillation operation. Description of the Drawings

[0018] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 is a schematic diagram of the structure of the filtering mechanism of the present invention;

[0020] Figure 3 is a schematic sectional view of the filtering mechanism of the present invention;

[0021] Figure 4 is a schematic sectional view of the stirring barrel of the present invention;

[0022] Figure 5 is a schematic diagram of the cylindrical structure of the present invention;

[0023] Figure 6 is a schematic sectional view of the fixed cylinder of the present invention;

[0024] Figure 7 is a schematic sectional view of the conveying component of the present invention;

[0025] Figure 8 is a schematic diagram of another perspective of the overall structure of the present invention.

[0026] In the figure: 1, frame; 2, filtering mechanism; 21, liquid guiding component; 211, fixed cylinder; 212, support ring; 213, liquid outlet hole; 22, cylinder; 23, stirring barrel; 24, stirring component; 241, support seat; 242, stirring rod; 243, gear set; 244, rotating rod; 245, motor; 25, limiting point; 26, through hole; 27, feed hole; 29, filter plate; 3, first liquid storage barrel; 4, water pump; 5, conveying component; 51, liquid delivery pipe; 52, semi-circular block; 53, fixing plate; 54, stud; 55, sealing gasket; 6, distillation kettle; 7, second liquid storage barrel. Detailed Embodiments

[0027] To make the technical means, creative features, achieved purposes and functions of the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0028] Embodiment 1:

[0029] As Figure 1 and Figure 8 shown, this embodiment provides a device for recycling solvents in the production of styrene resin, including a frame 1. A filtering mechanism 2 is fixedly connected to the upper right side of the frame 1. A first liquid storage barrel 3 is fixedly connected to the lower right side of the frame 1. A water pump 4 is fixedly connected to the left side of the first liquid storage barrel 3. A distillation kettle 6 is fixedly connected to the upper left side of the frame 1. A second liquid storage barrel 7 is fixedly connected to the lower left side of the frame 1. The output end of the water pump 4 is fixedly connected to a conveying assembly 5.

[0030] In the specific implementation process, first, the materials related to the production of styrene resin containing solvents are injected into the filtering mechanism 2. Then, specific solvents or water are added as needed. Then, the driving structure inside the filtering mechanism 2 is started to stir the inside of the filtering mechanism 2, so that the target solvent fully contacts with other components in the materials and is dissolved or dispersed in the liquid for subsequent separation. After the stirring and mixing are completed, the internal structure of the filtering mechanism 2 is manually rotated by 45 degrees. Then, while stirring, the mixed solvent can be filtered, and solid impurities, insoluble particles or polymers inside it can be intercepted. Then, the preliminarily filtered solvent is sent into the first liquid storage barrel 3 through the internal structure of the filtering mechanism 2 for storage. Then, the water pump 4 is started, and the solvent pumped out of the first liquid storage barrel 3 by the water pump 4 is sent into the distillation kettle 6 through the conveying assembly 5 for distillation separation. At the same time, after the conveying assembly 5 finishes sending the solvent into the distillation kettle 6, the internal structure of the conveying assembly 5 is rotated to ensure the sealing state of the distillation kettle 6. Then, after the distillation separation, the recyclable solvent enters the second liquid storage barrel 7 for recycling.

[0031] The above-mentioned distillation kettle 6 is a conventional design in the prior art, as long as it can meet the requirement of distillation separation of solvents.

[0032] Embodiment Two:

[0033] In order to achieve the purpose of filtering after stirring the materials and solvents, referring to Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 , in this embodiment, the filtering mechanism 2 includes a liquid guiding assembly 21. The liquid guiding assembly 21 is fixedly connected to the upper right side of the frame 1. A stirring assembly 24 is fixedly connected to the lower part of the inner cavity of the liquid guiding assembly 21. A stirring barrel 23 is fixedly connected to the upper part of the stirring assembly 24. A cylinder 22 is slidably connected to the outer arc surface of the stirring barrel 23. A feed hole 27 is opened at the upper end of the stirring barrel 23. Limit points 25 are symmetrically distributed and fixedly connected to one side of the upper end of the stirring barrel 23 away from its axis. A plurality of through holes 26 are annularly and arrayedly opened on the lower side of the outer surface of the stirring barrel 23.

[0034] Further, a plurality of filter plates 29 are fixedly connected in a circular distribution on the lower side of the outer arc surface of the cylinder 22, and two handles are symmetrically and fixedly connected to one side of the upper end of the cylinder 22 away from its axis.

[0035] During use, first, the material and some specific solvents are injected into the inner cavity of the stirring barrel 23 through the feed hole 27. Then, the driving structure inside the stirring assembly 24 is started to drive the internal structure of the stirring assembly 24 to operate. The solvents in the inner cavity of the stirring barrel 23 are stirred and mixed by the movement of the internal structure of the stirring assembly 24. After the stirring is completed, the cylinder 22 is rotated 45 degrees so that the handle at the upper end of the cylinder 22 corresponds to the limit point 25, thereby driving the filter plate 29 to coincide with the through hole 26. Then, while stirring inside the stirring assembly 24, the solvents are stirred outward so that the solvents flow into the liquid guiding assembly 21 through the filter plate 29. At the same time, the filter plate 29 can filter out the impurities inside while the solvents pass through, thus achieving the purpose of preliminary separation.

[0036] Further, referring to Figure 3 , the stirring assembly 24 includes a support seat 241 and a motor 245. The support seat 241 is fixedly connected to the inner arc surface of the support ring 212, and the motor 245 is fixedly connected to the lower right part of the outer arc surface of the fixed cylinder 211. The middle part of the upper end of the support seat 241 is rotatably connected to a stirring rod 242. The middle part of the upper wall of the inner cavity of the support seat 241 is fixedly connected to a gear set 243, and the gear set 243 is composed of two meshing bevel gears. The middle part of the bevel gear in the vertical direction is fixedly connected to a rotating rod 244.

[0037] Further, the left end and the right end of the rotating rod 244 are respectively rotatably connected to the left wall and the right wall of the inner cavity of the support seat 241, and the output end of the motor 245 penetrates through the outer surface of the fixed cylinder 211 and is fixedly connected to the right end of the rotating rod 244 through a coupling.

[0038] When the material and the solvent enter the inner cavity of the stirring barrel 23 through the feed hole 27, the motor 245 is started to drive the rotating rod 244 to rotate. Then, the bevel gear is driven to rotate by the rotation of the rotating rod 244, and then the stirring rod 242 is driven to rotate by the bevel gear to stir the solvent, achieving the purpose of mixing.

[0039] Embodiment 3:

[0040] Referring to Figure 6 , in this embodiment, the liquid guiding assembly 21 includes a fixed cylinder 211. The fixed cylinder 211 is fixedly connected to the upper right part of the frame 1. The lower side of the inner arc surface of the fixed cylinder 211 is fixedly connected to a support ring 212, and a liquid outlet hole 213 is opened in the middle of the bottom wall of the inner cavity of the fixed cylinder 211.

[0041] In the above, the solvent is thrown towards the inside of the fixed cylinder 211 through the filter plate 29, and then the solvent flows into the bottom wall of the fixed cylinder 211 through the holes around the support ring 212, and further the solvent directly flows into the first liquid storage barrel 3 through the liquid outlet hole 213 for storage.

[0042] Furthermore, in order to achieve the purpose of maintaining the seal after the solvent is delivered into the distillation kettle 6, referring to Figure 7 , in this solution, the delivery assembly 5 includes an infusion tube 51, the infusion tube 51 is fixedly connected to the output end of the water pump 4, the end of the infusion tube 51 away from the water pump 4 is fixedly connected to the upper right part of the outer arc surface of the distillation kettle 6, a stud 54 is threadedly connected to the upper rear side of the vertical part of the outer arc surface of the infusion tube 51, a sealing gasket 55 is fixedly connected to the front end of the stud 54, two semi-circular blocks 52 are fixedly connected to the upper part of the inner cavity of the vertical part of the infusion tube 51, a fixing plate 53 is fixedly connected to the side where the two semi-circular blocks 52 are close to each other, and a hole is formed in the middle of the fixing plate 53.

[0043] During use, the sealing gasket 55 is driven to rotate and move backward by rotating the stud 54, so that the sealing gasket 55 leaves the surface of the fixing plate 53, and the hole on the surface of the fixing plate 53 is exposed. Then, the solvent in the first liquid storage barrel 3 is pumped out through the water pump 4 and delivered into the distillation kettle 6 through the inner cavity of the infusion tube 51. After the delivery is completed, the sealing gasket 55 is driven to closely adhere to the fixing plate 53 by rotating the stud 54, so that the distillation kettle 6 is in a sealed state.

[0044] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A solvent recovery and recycling device in the production of styrene resin, comprising a frame (1), characterized in that: On the upper right side of the frame (1), a filtering mechanism (2) is fixedly connected. On the lower right side of the frame (1), a first liquid storage bucket (3) is fixedly connected. On the left side of the first liquid storage bucket (3), a water pump (4) is fixedly connected. On the upper left side of the frame (1), a distillation kettle (6) is fixedly connected. On the lower left side of the frame (1), a second liquid storage bucket (7) is fixedly connected. The output end of the water pump (4) is fixedly connected to a conveying assembly (5).

2. The recycling device according to claim 1, characterized in that: The filtering mechanism (2) includes a liquid guiding assembly (21). The liquid guiding assembly (21) is fixedly connected to the upper right side of the frame (1). In the lower part of the inner cavity of the liquid guiding assembly (21), a stirring assembly (24) is fixedly connected. On the upper part of the stirring assembly (24), a stirring bucket (23) is fixedly connected. A cylinder (22) is slidably connected to the outer arc surface of the stirring bucket (23). An inlet hole (27) is opened at the upper end of the stirring bucket (23).

3. The recycling device according to claim 2, wherein: On one side of the upper end of the stirring bucket (23) far from its axis, limit points (25) are symmetrically distributed and fixedly connected. On the lower side of the outer surface of the stirring bucket (23), a number of through holes (26) are annularly arranged.

4. The recycling device according to claim 2, characterized in that: A number of filter plates (29) are annularly distributed and fixedly connected to the lower side of the outer arc surface of the cylinder (22). A handle is connected to the upper end of the cylinder (22).

5. The recycling device according to claim 2, wherein: The liquid guiding assembly (21) includes a fixed cylinder (211). The fixed cylinder (211) is fixedly connected to the upper right side of the frame (1). A liquid outlet hole (213) is opened in the middle of the bottom wall of the inner cavity of the fixed cylinder (211).

6. The recycling device according to claim 5, wherein: A support ring (212) is fixedly connected to the lower side of the inner arc surface of the fixed cylinder (211).

7. The recycling device according to claim 5, wherein: The stirring assembly (24) includes a support seat (241) and a motor (245). The support seat (241) is fixedly connected to the inner arc surface of the support ring (212). The motor (245) is fixedly connected to the lower right side of the outer arc surface of the fixed cylinder (211). A dial rod (242) is rotatably connected to the middle of the upper end of the support seat (241). In the middle of the upper wall of the inner cavity of the support seat (241), a gear set (243) is fixedly connected. The gear set (243) is composed of two meshing bevel gears. A rotating rod (244) is fixedly connected to the middle of the bevel gear in the vertical direction.

8. The recycling device according to claim 7, characterized in that: The left end and the right end of the rotating rod (244) are respectively rotatably connected to the left wall and the right wall of the inner cavity of the support seat (241). The output end of the motor (245) penetrates the outer surface of the fixed cylinder (211) and is fixedly connected to the right end of the rotating rod (244) through a coupling.

9. The recycling device according to claim 1, characterized in that: The conveying assembly (5) includes an infusion tube (51). The infusion tube (51) is fixedly connected to the output end of the water pump (4). The end of the infusion tube (51) far from the water pump (4) is fixedly connected to the upper right side of the outer arc surface of the distillation kettle (6). A stud (54) is threadedly connected to the upper rear side of the vertical part of the outer arc surface of the infusion tube (51). A sealing gasket (55) is fixedly connected to the front end of the stud (54). Two semi-circular blocks (52) are fixedly connected to the upper part of the inner cavity of the vertical part of the infusion tube (51). A fixing plate (53) is fixedly connected to the side where the two semi-circular blocks (52) are close to each other.

10. The recycling device according to claim 9, characterized in that: A hole is opened in the middle of the fixing plate (53).

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