Splash-proof device for recovery of butadiene styrene rubber

Abstract

The invention belongs to the technical field of styrene butadiene rubber production, and particularly relates to a styrene butadiene rubber recovery anti-splashing device which comprises a reaction kettle and a discharge valve pipe, the discharge valve pipe is arranged on the bottom end face of the reaction kettle, an annular pipe is arranged on the outer circle face of the discharge valve pipe, and a plurality of communicating pipes are arranged between the bottom of the annular pipe and the discharge valve pipe in a communicating mode. A piston ring is arranged in the annular pipe in a sliding mode, a plurality of liquid passing seats are arranged on the outer circle face of the annular pipe, inclined plates are arranged in the liquid passing seats, filter plates are arranged above the inclined plates, concave grooves are formed in the positions, above the filter plates, of the upper end faces of the liquid passing seats, mesh cylinders are arranged on the end faces of the concave grooves, and rotating cylinders are arranged outside the mesh cylinders in a rotating mode. Compared with the prior art, in the rapid gushing-out process of reacted rubber, multiple times of pressure relief treatment can be achieved, under the condition that gas can be discharged more evenly, rubber materials can be recycled in time during discharging, and the overall maintenance cost is effectively reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of styrene-butadiene rubber production, and in particular relates to a styrene-butadiene rubber recovery and splash-proof device. Background Art

[0002] my country is a major producer of styrene-butadiene rubber, with a large amount of rubber produced every year. At the same time, rubber recycling is also a problem that needs to be faced. Most waste rubber has recycling value and can continue to play its value after re-refining. Styrene-butadiene rubber is usually melted and stirred at high temperature in a closed tank to complete the recycling process. However, in this process, due to the insufficient fluidity of the melted colloid, a pressure plate is required to increase the flow rate. However, there is residual gas between the colloid and the pressure plate. The gas will splash out of the high-temperature colloid during discharge, which can easily cause injury to the staff.

[0003] my country's patent CN201821889967.X discloses a splash-proof device for exhausting colloid during discharge, comprising a cylinder, the inner cavity of the cylinder is connected to the inner cavity of the reactor or transfer tank, the cylinder wall near the upper end of the cylinder expands outward to form a side ear, the side ear is provided with at least one connecting groove connected to the inner cavity of the cylinder, the upper end of the connecting groove opens to the upper surface of the side ear, and the lower end of the connecting groove is closed; a rubber piston is provided in the inner cavity gap of the cylinder, a cover covering the upper surface of the side ear is provided above the side ear, a push rod freely passes through the through hole in the center of the cover and is connected to the rubber piston; the height of the connecting groove is greater than the thickness of the rubber piston. The significant features of the present invention are that it can effectively prevent glue splashing during exhaust, the structure is simple, and it is easy to operate; the glue sprayed into the cylinder can be recycled, saving costs; and it is easy to clean.

[0004] In the prior art, the rubber piston and the venting groove are arranged so that the rubber can be exhausted before discharging, thereby reducing the splashing of glue. However, there are still some shortcomings in the overall use process: 1. Although the existing structure can complete the exhaust treatment, there are still many gaps inside after the exhaust is completed, and the materials cannot be smoothly recycled. The materials cannot be cleaned in time, and the colloid is easy to solidify in the exhaust port or ventilation groove and other locations, which seriously affects the subsequent production. The overall maintenance of the existing structure is relatively cumbersome.

[0005] 2. The existing structure as a whole lacks a structure that can relieve material pressure multiple times. When the material is discharged quickly, the existing structure only resists pressure through a single piston. The gas will still spray out in large quantities, and the service life of the equipment will be seriously reduced. Summary of the invention

[0006] In order to overcome the deficiencies of the prior art, the present invention provides a styrene-butadiene rubber recovery and splash-proof device.

[0007] The present invention arranges the piston ring, the inclined plate, the filter plate, the mesh cylinder, etc., so that the rubber after the reaction is quickly gushed out can be subjected to multiple pressure relief treatments, so that the gas can be discharged more evenly, and the rubber material can be recovered and processed in time during discharge, and the overall maintenance cost is effectively reduced.

[0008] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: a styrene-butadiene rubber recovery and splash-proof device, comprising a reactor, a discharge valve pipe, a discharge valve pipe is arranged on the bottom end surface of the reactor, an annular pipe is arranged on the outer circumference of the discharge valve pipe, a plurality of connecting pipes are arranged between the bottom of the annular pipe and the discharge valve pipe, a piston ring is arranged in the annular pipe for sliding, a plurality of detachable and connected liquid-passing seats are arranged on one side of the piston ring on the outer circumference of the annular pipe, an inclined plate inclined toward the annular pipe is arranged in the liquid-passing seat, a filter plate is arranged above the inclined plate, a recessed groove is arranged on the upper end surface of the liquid-passing seat above the filter plate, a mesh cylinder is arranged on the end surface of the recessed groove, a rotating cylinder is arranged on the outside of the mesh cylinder for rotation, and a plurality of rectangular openings are arranged on the outer circumference of the rotating cylinder. The arrangement of the piston ring and the filter plate allows the rapidly influxing materials and gases to be buffered multiple times, which can effectively reduce the flow rate and allow the gas to be discharged outward more evenly.

[0009] Preferably, a discharge head is provided on the bottom end surface of the discharge valve pipe, so that the material can be discharged smoothly.

[0010] Preferably, a plurality of push cylinders are arranged on the bottom end surface of the reactor above the annular tube, the output end of the push cylinder slides into the annular tube, and a pressure plate is arranged on the end surface of the push cylinder extending into the annular tube. The arrangement of the push cylinder and the pressure plate allows the piston ring to have sufficient space to slide upwards, and the piston ring can also smoothly press the material downwards to complete the reflux treatment.

[0011] Preferably, the outer surface of the annular tube is provided with a plurality of first pipe openings, the first pipe openings are provided with second pipe openings in cooperation with the inner threads, and one end of the outer side of the second pipe openings is connected to the liquid passing seat. With the arrangement of the first pipe openings and the second pipe openings, the liquid passing seat can be quickly replaced and maintained after multiple uses.

[0012] Preferably, a vibrator is provided at the lower end of each inclined plate, so that the material inside the liquid-passing seat can be smoothly recycled.

[0013] Preferably, a sliding opening is provided on one side of the filter plate on the end surface of the liquid passing seat, one end of the filter plate passes through the sliding opening, and a baffle is connected to the end of the filter plate passing through the sliding opening. The baffle makes it easy to replace and maintain the filter plate.

[0014] Preferably, the filter plate end surface is provided with a plurality of filter holes which are opened upwardly and tilted. The arrangement of the filter holes enables the material to be blocked smoothly and facilitates the rapid recovery of the material.

[0015] Preferably, a detector is provided on the end surface of the liquid-passing seat on one side of the rotating cylinder. With the provision of the detector, the exhaust condition can be quickly regulated.

[0016] Preferably, a plurality of scraping strips are arranged on the inner circumference of the rotating cylinder, and each of the scraping strips can abut against the outer circumference of the mesh cylinder. The arrangement of the scraping strips enables the materials accumulated on the mesh cylinder to be quickly scraped off, thus reducing the occurrence of accumulation and blockage.

[0017] Preferably, a driving motor is arranged on the upper end surface of the mesh cylinder, and the output end of the driving motor is connected to the rotating cylinder. The arrangement of the driving motor enables the rotating cylinder to rotate smoothly.

[0018] Preferably, a switch valve is provided in the connecting pipe, and the setting of the switch valve enables the flow of the material inside the connecting pipe to be controlled.

[0019] In summary, compared with the prior art, the beneficial effects of this solution are: (1) The present invention uses the arrangement of the piston ring, the filter plate, the mesh cylinder, and the rotating cylinder to allow the gas pressure to be buffered multiple times during the exhaust process, so that the gas can be discharged more evenly to ensure safety and reduce splashing. It can also avoid excessive overflow of the material, reduce material waste, and improve overall production capacity.

[0020] (2) The present invention uses the arrangement of the inclined plate, the vibrator, the piston ring, the filter hole, etc., so that when the exhaust is completed and the material is discharged to the outside, the material that originally entered the liquid-passing seat or the inside of the annular tube can be discharged to the outside smoothly, completing the reflux treatment, effectively reducing the waste of materials and preventing the materials from accumulating and solidifying inside, thereby improving the maintenance efficiency.

[0021] (3) The present invention arranges the scraper bar and the rotating drum so that the raw materials overflowing to the outside of the mesh drum can be quickly scraped off, thereby effectively avoiding the clogging of the mesh drum and ensuring the exhaust efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A perspective view of the present invention; Figure 2 It is a front view of the present invention; Figure 3 A top view of the present invention; Figure 4 for Figure 3 Stereoscopic cross-sectional view at AA in the middle; Figure 5 It is a three-dimensional diagram of the annular pipe and the discharge valve pipe parts; Figure 6 for Figure 4 A partial enlarged view of point B in the middle; Figure 7 It is the front view of the liquid-passing seat part; Figure 8 for Figure 7 A three-dimensional cross-sectional view at the center CC; Fig. 9 for Figure 8 A partial enlarged view of point D in the middle; Fig.10 A three-dimensional diagram of filter plate parts; In the figure: reactor 10, discharge valve pipe 11, discharge head 12, push cylinder 13, annular pipe 14, liquid passing seat 15, rotating cylinder 16, baffle 17, detector 18, connecting pipe 19, pressure plate 20, piston ring 21, switch valve 22, first pipe opening 23, second pipe opening 24, inclined plate 25, vibrator 26, recessed groove 27, filter plate 28, drive motor 29, mesh cylinder 30, rectangular opening 31, scraper strip 32, filter hole 33, sliding opening 34. DETAILED DESCRIPTION

[0023] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0024] Embodiment 1: like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6As shown, a styrene-butadiene rubber recovery and splash-proof device comprises a reactor 10 and a discharge valve pipe 11. The discharge valve pipe 11 is arranged on the bottom end surface of the reactor 10, and an annular pipe 14 is arranged on the outer circumferential surface of the discharge valve pipe 11. A plurality of connecting pipes 19 are arranged between the bottom of the annular pipe 14 and the discharge valve pipe 11, a piston ring 21 is slidably arranged in the annular pipe 14, and a plurality of detachable and connected liquid-passing seats 15 are arranged on one side of the piston ring 21 on the outer circumferential surface of the annular pipe 14, an inclined plate 25 inclined toward the annular pipe 14 is arranged in the liquid-passing seat 15, a filter plate 28 is arranged above the inclined plate 25, a recessed groove 27 is arranged on the upper end surface of the liquid-passing seat 15 above the filter plate 28, a mesh cylinder 30 is arranged on the end surface of the recessed groove 27, a rotating cylinder 16 is rotatably arranged outside the mesh cylinder 30, and a plurality of rectangular openings 31 are arranged on the outer circumferential surface of the rotating cylinder 16.

[0025] Specifically, the reactor 10 and the discharge valve pipe 11 are both existing technologies and will not be elaborated in detail in this solution. The interior of the reactor 10 is used to perform secondary reaction treatment on the recovered rubber particles. When the rubber reaction is completed, it is discharged to the outside through the discharge valve pipe 11. The discharge valve pipe 11 is provided with a related control valve to control the smooth discharge of the material.

[0026] When the discharge valve tube 11 needs to discharge material outward, the material will be pressurized inside the reactor 10 so that the material can be discharged smoothly. At this time, the reaction inside the reactor 10 has just been completed and there is a certain amount of gas. The instantaneous discharge will cause splashing. Therefore, when the first batch of materials are poured into the discharge valve tube 11 with gas, the connecting tube 19 and the multiple connecting tubes 19 connecting the liquid-passing seat 15 and the annular tube 14 will be opened, and the material entrained with a certain pressure gas will be poured into the annular tube 14 through the multiple connecting tubes 19. The poured material will push the piston ring 21 upward. In this relationship, the piston ring 21 is integrally sealed and slidably arranged inside the annular tube 14. There is a certain lifting pressure, which can partially relieve the pressure of the material when it rushes in quickly and slow down the flow rate of the material. When the piston ring 21 is pushed to a certain height, the material poured into the annular tube 14 will enter the inside of each liquid-passing seat 15.

[0027] When the material enters the liquid-passing seat 15, the material and the gas inside will surge upward. During this process, the filter plate 28 arranged above the inclined plate 25 will block the material from flowing upward. A plurality of holes for ventilation are arranged on the end face of the filter plate 28, so that the material can be mostly blocked, and the high-pressure gas can seep outward, and then can be discharged outward through the plurality of holes on the outer surface of the mesh tube 30. In this embodiment, a plurality of holes are arranged on the outer surface of the mesh tube 30, so that the gas can be discharged outward smoothly.

[0028] During the exhaust process of the mesh cylinder 30, some materials may still be squeezed out to the top of the filter plate 28 and enter the mesh cylinder 30 due to the force of the high-pressure gas. At this time, the rotating cylinder 16 will rotate, and the rotating rotating cylinder 16 will drive the multiple rectangular openings 31 on the outer circular surface to rotate. The multiple rectangular openings 31 can ensure that the gas is discharged smoothly. The rotating cylinder 16 in the rotating state can prevent excessive overflow of materials to a certain extent, and can form a barrier layer on the outside of the mesh cylinder 30. The overflowed materials will be collected by the recessed groove 27 to reduce the occurrence of random flow of materials.

[0029] When the liquid-passing seat 15 is deflated for a certain period of time, the air pressure in the material decreases as a whole, and the discharge valve tube 11 can be opened to discharge the material outward. During discharge, the material that originally entered the liquid-passing seat 15 but lost pressure will flow back into the annular tube 14 under the action of the inclined guidance of the inclined plate 25. The piston ring 21 inside the annular tube 14 will press downward in this process, so that the material flowing back into the annular tube 14 can be pressed into the discharge valve tube 11 through the connecting tube 19, thereby reducing the loss of the material and completing the recycling process.

[0030] Further, such as Figure 1 and Figure 5 As shown, a discharge head 12 is connected and arranged on the bottom end surface of the discharge valve pipe 11 .

[0031] Specifically, a control valve is provided inside the discharge head 12. When the air pressure of the material entering the discharge valve pipe 11 is removed, the discharge head 12 can be opened, so that the material can be discharged smoothly to the outside and splashing can be reduced.

[0032] Further, such as Figure 6 As shown, a switch valve 22 is provided in the connecting pipe 19 .

[0033] Specifically, the switch valve 22 is a prior art and will not be elaborated in detail in this solution. The switch valve 22 can control the flow of materials inside the connecting pipe 19, so that when materials need to be poured into or refluxed inside the annular pipe 14, the connecting pipe 19 can be opened smoothly to complete the work process.

[0034] Further, such as Figure 5 and Figure 6 As shown, a plurality of push cylinders 13 are arranged on the bottom end surface of the reactor 10 above the annular tube 14 , and the output end of the push cylinder 13 slides into the annular tube 14 , and a pressure plate 20 is arranged on the end surface of the push cylinder 13 extending into the annular tube 14 .

[0035] Specifically, the push cylinder 13 is a prior art, and this scheme will not elaborate on it in detail. A plurality of holes are provided on the end surface of the annular tube 14 for the output end of the push cylinder 13 to extend into, and a sealing treatment is performed between the output end of the push cylinder 13 and the annular tube 14 to ensure that when the output end of the push cylinder 13 slides smoothly, no material will overflow from the sliding fit between the annular tube 14 and the output end of the push cylinder 13. The specific sealing structure is a prior art, and this scheme will not elaborate on it in detail. When the piston ring 21 slides upward due to the pressure of the material, the output end of the push cylinder 13 will drive the pressure plate 20 to move to the top of the annular tube 14, so that the piston ring 21 has sufficient space to slide upward. When the discharge valve tube 11 starts to discharge, the output end of the push cylinder 13 will push the pressure plate 20 to move downward, so that the bottom end of the pressure plate 20 is pressed on the end surface of the piston ring 21, thereby exerting pressure on the piston ring 21, so that the piston ring 21 can squeeze the material downward and discharge it.

[0036] Further, such as Figure 6 , Figure 7 and Figure 8 As shown, a plurality of first pipe openings 23 are arranged on the outer circumferential surface of the annular tube 14 , and a second pipe opening 24 is arranged in cooperation with the inner thread of the first pipe opening 23 , and an outer end of the second pipe opening 24 is connected to the liquid passing seat 15 .

[0037] Specifically, the middle part of the second pipe opening 24 is hollow, and mutually matching threads are arranged between the outer circumferential surface of the second pipe opening 24 and the inner circumferential surface of the first pipe opening 23, so that the liquid passing seat 15 can be fixed by the cooperation between the first pipe opening 23 and the second pipe opening 24. This arrangement not only ensures the smooth injection of materials and completes the pressure relief treatment, but also allows the liquid passing seat 15 to be quickly replaced and maintained after long-term use.

[0038] Further, such as Figure 6 As shown, a vibrator 26 is provided at the lower end of each inclined plate 25 .

[0039] Specifically, the vibrator 26 is a prior art, including a linear motor that generates vibration when powered on, which will not be elaborated in detail in this solution. The output end of the vibrator 26 is connected to the inclined plate 25. When the material flows back to the inside of the annular tube 14 through the inclined surface of the inclined plate 25, the vibrator 26 will be powered on to generate vibration, thereby vibrating the inclined plate 25 to a certain extent, so that the material above the inclined plate 25 can smoothly complete the reflux process.

[0040] Further, such as Figure 5 , Figure 6 and Fig.10 As shown, a sliding opening 34 is provided on one side of the filter plate 28 on the end surface of the liquid passing seat 15 , one end of the filter plate 28 passes through the sliding opening 34 , and the end of the filter plate 28 passing through the sliding opening 34 is connected to the baffle 17 .

[0041] Specifically, the end faces of the baffle 17 and the filter plate 28 connected to each other abut against the end face of the liquid passing seat 15, and the sliding opening 34 can be sealed. The filter plate 28 is integrally slidably connected inside the liquid passing seat 15. When the equipment has been used for a long time, the staff can pull the baffle 17 to pull the filter plate 28 outward, so that the filter plate 28 can be replaced and maintained.

[0042] Further, such as Figure 5 and Figure 7 As shown, a detector 18 is provided on the end surface of the liquid passing seat 15 on one side of the rotating cylinder 16.

[0043] Specifically, the detector 18 can perform video monitoring processing on the entire rotating drum 16, so that the material overflow situation can be understood in time, thereby improving the discharge quality.

[0044] Further, such as Figure 6 As shown, a driving motor 29 is disposed on the upper end surface of the mesh cylinder 30 , and an output end of the driving motor 29 is connected to the rotating cylinder 16 .

[0045] Specifically, the driving motor 29 is a prior art, and this solution will not elaborate on it in detail. The output end of the driving motor 29 can drive the rotating drum 16 to rotate to complete the interception and processing of the material.

[0046] Embodiment 2: like Figure 8 and Fig. 9 As shown, a styrene-butadiene rubber recovery and splash prevention device is provided, wherein a plurality of scraping strips 32 are arranged on the inner circumferential surface of the rotating cylinder 16 , and each scraping strip 32 can abut against the outer circumferential surface of the mesh cylinder 30 .

[0047] As a further embodiment, the surface where the scraper strip 32 contacts the mesh cylinder 30 is rounded. When the rotating cylinder 16 rotates, the multiple scraper strips 32 on the inner circular surface will be driven to rotate, thereby scraping off the material overflowing onto the outer circular surface of the mesh cylinder 30, thereby preventing the material from hardening and clogging in the multiple holes on the outer circular surface of the mesh cylinder 30, thereby ensuring fluidity.

[0048] Embodiment three: like Fig.10 As shown, a styrene-butadiene rubber recovery and splash prevention device is provided, and a plurality of filter holes 33 which are opened upwardly and tilted are arranged on the end surface of the filter plate 28.

[0049] As a further embodiment, multiple filter holes 33 are arranged in a trumpet shape, with the upper end tilted outward and opened, and the lower end tilted inward and gathered. This arrangement allows the smaller holes at the bottom to be effectively blocked when the material overflows upward, and the larger openings at the top facilitate gathering when the material flows back downward, thereby improving the reflux efficiency. In this solution, the number of filter holes 33 and the discharge method are set according to actual conditions, and this solution will not be elaborated in detail.

[0050] For example, certain words are used in the specification and claims to refer to specific components. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. This specification and claims do not use differences in names as a way to distinguish components, but use differences in the functions of components as the criteria for distinction. For example, "including" mentioned throughout the specification and claims is an open term, so it should be interpreted as "including but not limited to". "Approximately" means that within an acceptable error range, those skilled in the art can solve the technical problem within a certain error range and basically achieve the technical effect.

[0051] It should be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a product or system including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such product or system. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the product or system including the elements.

[0052] The above description shows and describes several preferred embodiments of the present application, but as mentioned above, it should be understood that the present application is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the application concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not deviate from the spirit and scope of the present application, and should be within the scope of protection of the claims attached to the present application.

Claims

1. A styrene-butadiene rubber recovery and splash prevention device, comprising a reaction kettle (10) and a discharge valve pipe (11), wherein the discharge valve pipe (11) is arranged on the bottom end surface of the reaction kettle (10), characterized in that: An annular tube (14) is arranged on the outer circumferential surface of the discharge valve tube (11); a plurality of connecting tubes (19) are arranged between the bottom of the annular tube (14) and the discharge valve tube (11); a piston ring (21) is slidably arranged inside the annular tube (14); a plurality of detachable and connected liquid-passing seats (15) are arranged on one side of the piston ring (21) on the outer circumferential surface of the annular tube (14); an inclined plate (25) inclined toward the annular tube (14) is arranged inside the liquid-passing seat (15); a filter plate (28) is arranged above the inclined plate (25); a recessed groove (27) is arranged on the upper end surface of the liquid-passing seat (15) above the filter plate (28); a mesh cylinder (30) is arranged on the end surface of the recessed groove (27); a rotating cylinder (16) is rotatably arranged outside the mesh cylinder (30); a plurality of rectangular openings (31) are arranged on the outer circumferential surface of the rotating cylinder (16).

2. A styrene-butadiene rubber recovery and splash prevention device according to claim 1, characterized in that: A discharge head (12) is provided on the bottom end surface of the discharge valve pipe (11).

3. A styrene-butadiene rubber recovery and splash prevention device according to claim 1, characterized in that: A plurality of push cylinders (13) are arranged on the bottom end surface of the reaction kettle (10) above the annular tube (14); the output ends of the push cylinders (13) slide into the annular tube (14); and a pressure plate (20) is arranged on the end surface of the push cylinders (13) extending into the annular tube (14).

4. A styrene-butadiene rubber recovery and splash prevention device according to claim 3, characterized in that: The outer circumferential surface of the annular tube (14) is provided with a plurality of first pipe openings (23), the first pipe openings (23) are provided with second pipe openings (24) in cooperation with internal threads, and one outer end of the second pipe openings (24) is connected to the liquid passing seat (15).

5. A styrene-butadiene rubber recovery and splash prevention device according to claim 1, characterized in that: A vibrator (26) is provided at the lower end of each inclined plate (25).

6. A styrene-butadiene rubber recovery and splash prevention device according to claim 1, characterized in that: A sliding opening (34) is provided on one side of the filter plate (28) on the end surface of the liquid passing seat (15), one end of the filter plate (28) passes through the sliding opening (34), and the end of the filter plate (28) passing through the sliding opening (34) is connected to a baffle (17).

7. A styrene-butadiene rubber recovery and splash prevention device according to claim 6, characterized in that: The end surface of the filter plate (28) is provided with a plurality of filter holes (33) which are opened obliquely upward.

8. The styrene-butadiene rubber recovery and splash prevention device according to claim 1, characterized in that: A plurality of scraping strips (32) are arranged on the inner circumferential surface of the rotating cylinder (16), and each of the scraping strips (32) can abut against the outer circumferential surface of the mesh cylinder (30).

9. A styrene-butadiene rubber recovery and splash prevention device according to claim 8, characterized in that: A detector (18) is provided on one side of the rotating cylinder (16) on the end surface of the liquid passing seat (15).

10. The styrene-butadiene rubber recovery and splash prevention device according to claim 1, characterized in that: A switch valve (22) is arranged in the connecting pipe (19).

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