Recycling device for organic silicon slag slurry

Abstract

The invention relates to the field of organic silicon slag slurry, and discloses a recycling device for organic silicon slag slurry. According to the device, a butt joint pipe is arranged at the bottom end of a mixing barrel, a settling box is arranged at the other end of the butt joint pipe, a chemical treatment box and a biological treatment box are sequentially arranged on the surface of one side of the settling box through connecting pipes, and an oxidizing agent adding pipe and an impurity removing agent adding pipe are arranged on the upper surface of the chemical treatment box; a gas filtering box is arranged on the outer surface of one side of the chemical treatment box, a collecting box is movably arranged at the bottom end of the outer surface of one side of the chemical treatment box, a handle is arranged on the surface of the collecting box, an impurity removing agent can be added through a matched impurity removing agent adding pipe, and heavy metal and harmful substances in waste liquid are precipitated out; organic substances in the waste liquid are treated by using an oxidizing agent in cooperation with an oxidizing agent adding pipe, then the organic substances enter the biological treatment box through a connecting pipe, and organic pollutants in the waste liquid are degraded through a biological treatment method, so that the influence on the environment is reduced, and cyclic utilization of resources is promoted.

Description

Technical Field

[0001] The present invention belongs to the technical field of silicone slag slurry, and specifically relates to a recovery and treatment device for silicone slag slurry. Background Art

[0002] Silicone slag slurry is a waste generated during the synthesis of silicone monomers, especially methyl chlorosilane monomers. It mainly consists of a large amount of high-boiling substances and a small amount of unreacted silicon powder and copper powder carried out by the fluidized bed. High-boiling substances refer to high-boiling polysilane mixtures with a boiling range of 70.3 - 250°C during the synthesis of methyl chlorosilane monomers, mainly composed of silicon-silicon bonds, silicon-carbon-silicon bonds, and silicon-oxygen-silicon bonds. After premixing different batches of silicone slag slurry, it is successively pressurized, centrifuged, gas-liquid separated, and pressure-filtered to obtain a liquid rich in high-boiling substances and solid residues; before pressure-filtering the silicone slag slurry, it is necessary to extract the upper-layer liquid in the container storing the silicone slag slurry to facilitate the pressure-filtering operation.

[0003] However, the waste liquid generated by most silicone slag slurry recovery and treatment devices during operation has not been treated through multiple stages and is discharged into the external environment, causing serious environmental pollution; at the same time, when the silicone slag slurry enters the mixing process in the recovery and treatment device of silicone slag slurry, a temperature control component is not provided, resulting in a reduction in the mixing and dissolution efficiency of the silicone slag slurry. Summary of the Invention

[0004] The purpose of the present invention is to provide a recovery and treatment device for silicone slag slurry to solve the problem of waste liquid treatment mentioned above.

[0005] The technical solution adopted by the present invention is as follows: A recovery and treatment device for silicone slag slurry, including a mixing barrel, a docking pipe is arranged at the bottom end of the mixing barrel, the other end of the docking pipe is provided with a sedimentation tank, and a chemical treatment tank and a biological treatment tank are successively arranged on one side surface of the sedimentation tank through a connecting pipe. An oxidant addition pipe and an impurity removal agent addition pipe are arranged on the upper surface of the chemical treatment tank, and a gas filtration tank is arranged on the outer surface of one side of the chemical treatment tank. A collection box is movably arranged at the bottom end of the outer surface of one side of the chemical treatment tank, and a handle is arranged on the surface of the collection box.

[0006] By adopting the above technical solution, the bottom liquid after precipitation in the precipitation tank enters the interior of the precipitation tank through the connecting pipe. The impurity removal agent adding pipe is provided to add an impurity removal agent, so as to precipitate heavy metals and harmful substances in the waste liquid, thereby achieving separation. Then, in cooperation with the oxidant adding pipe, an oxidant is used to treat the organic substances in the waste liquid to promote their degradation. The collection box and the handle are provided to take out the precipitate, and then it enters the interior of the biological treatment tank through the connecting pipe to degrade the organic pollutants in the waste liquid by biological treatment method. Through these steps, the residual waste liquid generated in the process of recovering organosilicon slurry can be effectively treated, thereby reducing the impact on the environment and promoting the recycling of resources.

[0007] In a preferred embodiment, a stirring motor is provided on the top surface of the mixing barrel, an electric control box is provided on one side surface of the mixing barrel, and a heating pipe is provided on the inner wall of the mixing barrel. One end of the heating pipe is electrically connected to the electric control box.

[0008] By adopting the above technical solution, by providing a heating pipe on the inner wall of the mixing barrel, the organosilicon slurry inside can be heated when the stirring motor cooperates with the stirring assembly to perform a uniform mixing operation. The electric control box provided can control the heating temperature, thereby helping the organosilicon slurry to be mixed and dissolved and improving the working efficiency.

[0009] In a preferred embodiment, a stirring main rod is provided at the output end inside the mixing barrel of the stirring motor. A plurality of stirring rods are fixedly connected to the surface of the stirring main rod, and a scraping plate is fixedly connected to the bottom end of the stirring main rod. The surface of the scraping plate is in contact with the inner side surface of the mixing barrel.

[0010] By adopting the above technical solution, when the organosilicon slurry enters the interior of the mixing barrel, starting the provided stirring motor can drive the stirring main rod to rotate, so that the stirring rods can perform a mixing and stirring operation on the organosilicon slurry. The provided scraping plate can prevent the slurry from sticking to the inner wall of the mixing barrel, which is convenient for cleaning the structure.

[0011] In a preferred embodiment, a box door is movably provided on the surface of the electric control box, and a pulling block and a lock are provided on the surface of the box door.

[0012] By adopting the above technical solution, the provided box door and the pulling block can facilitate the replacement or operation of the internal structure of the electric control box by the operator, and the electric control box can play a role in protecting the control components.

[0013] In a preferred embodiment, a support frame is welded on the outer surface of the mixing barrel, and the electric control box is provided on the surface of the support frame.

[0014] By adopting the above technical solution, the provided support frame can facilitate the stable placement of the mixing barrel and also facilitate the installation of the electric control box.

[0015] In a preferred embodiment, a second drain pipe is provided on one side surface of the biological treatment tank, and a sealed tank cover is provided on the top surface of the biological treatment tank.

[0016] By adopting the above technical solution, the provided second drain pipe enables the liquid after the reaction to be transported to the recycling system, and the setting of the sealed tank cover facilitates the replacement of the internal structure of the biological treatment tank by the staff.

[0017] In a preferred embodiment, a valve is provided at the connection between the mixing barrel and the docking pipe, and a first drain pipe is provided above one side surface of the sedimentation tank.

[0018] By adopting the above technical solution, setting a valve at the connection between the mixing barrel and the docking pipe can control the discharge speed of the mixed slurry. After sedimentation inside the sedimentation tank, the clear liquid on the upper layer of the sedimentation tank can flow to other equipment components through the first drain pipe.

[0019] In a preferred embodiment, a feed hopper is fixedly provided on the top surface of the mixing barrel, and a sealed cover is provided on the surface of the feed hopper.

[0020] By adopting the above technical solution, the feed hopper provided on the top of the mixing barrel facilitates the entry of the silicone slag slurry, and the setting of the sealed cover can achieve a sealing and covering effect.

[0021] In a preferred embodiment, a filter box is fixedly provided on the top surface of the mixing barrel. An installation frame and filter cotton are provided on the inner wall of the filter box. A box cover is provided on one side surface of the filter box, and an exhaust pipe is provided on the top surface of the filter box.

[0022] By adopting the above technical solution, when the mixing and stirring work is carried out inside the mixing barrel, the generated gas will rise to the top of the mixing barrel, and then be filtered through the structure of the filter cotton inside the filter box and discharged to other equipment through the exhaust pipe. The setting of the box cover in cooperation with the installation frame can facilitate the replacement and installation of the internal components.

[0023] In a preferred embodiment, the inside of the gas filter box is filled with structures such as activated carbon and filter cotton, and a filter screen is provided on the upper surface of the gas filter box.

[0024] By adopting the above technical solution, filling structures such as activated carbon and filter cotton inside the gas filter box in cooperation with the filter screen can filter the gas generated by the chemical reaction to reduce environmental pollution.

[0025] In summary, due to adopting the above technical solution, the beneficial effects of the present invention are:

[0026] 1. After the bottom liquid is precipitated in the precipitation tank, it enters the interior of the precipitation tank through the connecting pipe. The impurity removal agent adding pipe can be used to add impurity removal agent to precipitate heavy metals and harmful substances in the waste liquid, thus achieving separation. Then, in combination with the oxidant adding pipe, an oxidant is used to treat the organic substances in the waste liquid to promote their degradation. The collection box and handle can be used to take out the precipitate, and then it enters the interior of the biological treatment tank through the connecting pipe to degrade the organic pollutants in the waste liquid by biological treatment method. Through these steps, the residual waste liquid generated in the recovery process of silicone slag slurry can be effectively treated, thereby reducing the impact on the environment and promoting the recycling of resources.

[0027] 2. By arranging heating pipes on the inner wall of the mixing barrel, the internal silicone slag slurry can be heated when the stirring motor cooperates with the stirring assembly to perform uniform mixing work. The temperature control cabinet can be used to control the heating temperature, which helps to mix and dissolve the silicone slag slurry and improve work efficiency. Brief Description of the Drawings

[0028] Figure 1 It is a top view structural schematic diagram of the recovery and treatment device for silicone slag slurry of the present invention;

[0029] Figure 2 It is a front view structural schematic diagram of the recovery and treatment device for silicone slag slurry of the present invention;

[0030] Figure 3 It is a structural schematic diagram of the chemical treatment tank of the present invention;

[0031] Figure 4 It is a structural schematic diagram of the stirring assembly of the present invention;

[0032] Figure 5 It is a structural schematic diagram of the heating assembly of the mixing barrel of the present invention;

[0033] Figure 6 It is a structural schematic diagram of the gas discharge assembly of the mixing barrel of the present invention.

[0034] Markings in the figure: 1. Mixing barrel; 2. Support frame; 3. Precipitation tank; 4. Chemical treatment tank; 6. Biological treatment tank; 7. Docking pipe; 8. Drain pipe 1; 9. Connecting pipe; 10. Sealed box cover; 11. Drain pipe 2; 12. Collection box; 13. Handle; 14. Gas filtration tank; 15. Oxidant adding pipe; 16. Impurity removal agent adding pipe; 17. Stirring motor; 18. Stirring main rod; 19. Scraper; 20. Stirring rod; 21. Electric control cabinet; 22. Heating pipe; 23. Feeding hopper; 24. Sealing cover; 25. Filter box; 26. Box door; 27. Pulling block; 28. Valve; 29. Exhaust pipe; 30. Installation frame; 31. Filter cotton; 32. Box cover. Detailed Embodiments

[0035] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without any creative work belong to the scope of protection of the present invention.

[0036] Embodiment:

[0037] Referring to Figure 1-3 , a recovery and treatment device for silicone slag slurry, comprising a mixing barrel 1. A docking pipe 7 is provided at the bottom end of the mixing barrel 1. The other end of the docking pipe 7 is provided with a sedimentation tank 3. A chemical treatment tank 4 and a biological treatment tank 6 are sequentially arranged on one side surface of the sedimentation tank 3 through a connecting pipe 9. An oxidant adding pipe 15 and an impurity removing agent adding pipe 16 are provided on the upper surface of the chemical treatment tank 4. A gas filtration tank 14 is provided on the outer surface of one side of the chemical treatment tank 4. A collecting box 12 is movably arranged at the bottom end of the outer surface of one side of the chemical treatment tank 4. A handle 13 is provided on the surface of the collecting box 12. After the bottom liquid is precipitated by the sedimentation tank 3, it enters the inside of the sedimentation tank 3 through the connecting pipe 9. The impurity removing agent adding pipe 16 provided can add impurity removing agents such as lime and aluminum sulfate to precipitate heavy metals and harmful substances in the waste liquid, so as to achieve separation. Then, an oxidant such as ozone or chlorine is used in cooperation with the oxidant adding pipe 15 to treat the organic substances in the waste liquid to promote their degradation. The arrangement of the collecting box 12 and the handle 13 can take out the precipitate, and then enter the inside of the biological treatment tank 6 through the connecting pipe 9 to degrade the organic pollutants in the waste liquid by biological treatment method. Through these steps, the remaining waste liquid generated in the process of silicone slag slurry recovery can be effectively treated, thereby reducing the impact on the environment and promoting the recycling of resources.

[0038] Referring to Figure 1-5 , a stirring motor 17 is provided on the top surface of the mixing barrel 1. An electric control box 21 is provided on one side surface of the mixing barrel 1. A heating pipe 22 is provided on the inner wall of the mixing barrel 1. One end of the heating pipe 22 is electrically connected to the electric control box 21. By providing the heating pipe 22 on the inner wall of the mixing barrel 1, the internal silicone slag slurry can be heated when the stirring motor 17 cooperates with the stirring assembly for uniform mixing work. The electric control box 21 provided can control the heating temperature, which helps to mix and dissolve the silicone slag slurry and improve work efficiency.

[0039] Referring to Figure 1-4, a stirring motor 17 is provided with a main stirring rod 18 at the inner output end of the mixing barrel 1. A plurality of stirring rods 20 are fixedly connected to the surface of the main stirring rod 18, and a scraping plate 19 is fixedly connected to the bottom end of the main stirring rod 18. The surface of the scraping plate 19 is in contact with the inner surface of the mixing barrel 1. When the silicone slag slurry enters the inside of the mixing barrel 1, starting the provided stirring motor 17 can drive the main stirring rod 18 to rotate, so that the stirring rods 20 can mix and stir the silicone slag slurry. The provided scraping plate 19 can prevent the slag slurry from sticking to the inner wall of the mixing barrel 1, which is convenient for cleaning this structure cleanly.

[0040] Refer to Figure 1-2 , a door 26 is movably arranged on the surface of the electric control box 21. A pulling block 27 and a lock are arranged on the surface of the door 26. The provided door 26 and the pulling block 27 can facilitate the replacement or operation of the internal structure of the electric control box 21 by the operator, and the setting of the electric control box 21 can play a role in protecting the control components.

[0041] Refer to Figure 1-2 , a support frame 2 is welded on the outer surface of the mixing barrel 1, and the electric control box 21 is arranged on the surface of the support frame 2. The provided support frame 2 can facilitate the stable placement of the mixing barrel 1 and also facilitate the installation of the electric control box 21.

[0042] Refer to Figure 1-2 , a second drain pipe 11 is arranged on one side surface of the biological treatment tank 6, and a sealed cover 10 is arranged on the top surface of the biological treatment tank 6. The provided second drain pipe 11 can convey the reacted liquid to the recycling system, and the setting of the sealed cover 10 facilitates the replacement of the internal structure of the biological treatment tank 6 by the staff.

[0043] Refer to Figure 1-2 , a valve 28 is arranged at the connection between the mixing barrel 1 and the docking pipe 7, and a first drain pipe 8 is arranged above one side surface of the sedimentation tank 3. Arranging the valve 28 at the connection between the mixing barrel 1 and the docking pipe 7 can control the discharge speed of the mixed slag slurry. After sedimentation inside the sedimentation tank 3, the supernatant liquid on the upper layer of the sedimentation tank 3 can flow to other equipment components through the first drain pipe 8.

[0044] Refer to Figure 1-5 , a feed hopper 23 is fixedly arranged on the top surface of the mixing barrel 1, and a sealing cover 24 is hermetically arranged on the surface of the feed hopper 23. The feed hopper 23 arranged on the top of the mixing barrel 1 facilitates the entry of the silicone slag slurry, and the setting of the sealing cover 24 can play a sealing and covering effect.

[0045] Refer to Figure 1-6, a filter box 25 is fixedly arranged on the top surface of the mixing barrel 1. An installation frame 30 and a filter cotton 31 are arranged on the inner wall of the filter box 25. And a box cover 32 is arranged on one side surface of the filter box 25. And an exhaust pipe 29 is arranged on the top surface of the filter box 25. When the mixing and stirring work is carried out inside the mixing barrel 1, the generated gas will rise to the top of the mixing barrel 1, and then be filtered through the structure of the filter cotton 31 inside the filter box 25 and discharged to other equipment through the exhaust pipe 29. And the setting of the box cover 32 in cooperation with the installation frame 30 can facilitate the replacement and installation of the internal components.

[0046] Referring to Figure 1-3 , the inside of the gas filter box 14 is filled with structures such as activated carbon and filter cotton. And a filter screen is arranged on the upper surface of the gas filter box 14. The structures such as activated carbon and filter cotton filled inside the gas filter box 14 in cooperation with the filter screen can filter the gas generated by the chemical reaction to reduce environmental pollution.

[0047] The implementation principle of the embodiment of the recovery and treatment device for organosilicon slurry of the present invention is as follows:

[0048] After the bottom liquid after precipitation in the precipitation tank 3 enters the inside of the precipitation tank 3 through the connecting pipe 9, impurity removal agents such as lime and aluminum sulfate can be added through the impurity removal agent adding pipe 16 provided, so as to precipitate heavy metals and harmful substances in the waste liquid, thus realizing separation; then an oxidant such as ozone or chlorine is used in cooperation with the oxidant adding pipe 15 to treat the organic substances in the waste liquid to promote their degradation. And the setting of the collection box 12 and the handle 13 can take out the precipitate, and then enter the inside of the biological treatment tank 6 through the connecting pipe 9 to degrade the organic pollutants in the waste liquid by biological treatment methods;

[0049] By arranging a heating pipe 22 on the inner wall of the mixing barrel 1, the internal organosilicon slurry can be heated when the stirring motor 17 cooperates with the stirring assembly to carry out uniform mixing and stirring work. The temperature of the heating can be controlled by the electric control box 21 provided, which helps to mix and dissolve the organosilicon slurry.

[0050] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A recycling and processing device for organosilicon slurry, comprising a mixing barrel (1), characterized in that: The bottom end of the mixing barrel (1) is provided with a butt joint (7), the other end of the butt joint (7) is provided with a sedimentation box (3), and a chemical treatment box (4) and a biological treatment box (6) are sequentially provided on one side surface of the sedimentation box (3) through a connecting pipe (9), an oxidant addition pipe (15) and an impurity removal agent addition pipe (16) are provided on the upper surface of the chemical treatment box (4), and a gas filter box (14) is provided on the outer surface of one side of the chemical treatment box (4), and a collection box (12) is movably provided at the bottom end of the outer surface of one side of the chemical treatment box (4), and a handle (13) is provided on the surface of the collection box (12).

2. The organic silicon slurry recovery and treatment device according to claim 1, characterized in that: The top surface of the mixing barrel (1) is provided with a stirring motor (17), the side surface of the mixing barrel (1) is provided with an electric control box (21), and the inner wall of the mixing barrel (1) is provided with a heating tube (22), and one end of the heating tube (22) is electrically connected to the electric control box (21).

3. The organic silicon slurry recovery and treatment device according to claim 2, characterized in that: The stirring motor (17) is provided with a stirring main rod (18) at the internal output end of the mixing barrel (1), a plurality of stirring rods (20) are fixedly connected to the surface of the stirring main rod (18), and a scraper (19) is fixedly connected to the bottom end of the stirring main rod (18), and the surface of the scraper (19) is in contact with the inner surface of the mixing barrel (1).

4. The organic silicon slurry recovery and treatment device according to claim 2, characterized in that: The surface of the electric control box (21) is movably provided with a box door (26), and the surface of the box door (26) is provided with a pull block (27) and a lock catch.

5. The organic silicon slurry recovery and treatment device according to claim 3, characterized in that: A support frame (2) is welded to the outer surface of the mixing barrel (1), and the electric control box (21) is arranged on the surface of the support frame (2).

6. The organic silicon slurry recovery and treatment device according to claim 1, characterized in that: A second liquid discharge pipe (11) is provided on one side surface of the biological treatment box (6), and a sealed box cover (10) is provided on the top surface of the biological treatment box (6).

7. The organic silicon slurry recovery and treatment device according to claim 1, characterized in that: A valve (28) is provided at the connection between the mixing barrel (1) and the butt joint (7), and a drain pipe (8) is provided above one side surface of the sedimentation tank (3).

8. The organic silicon slurry recovery and treatment device according to claim 1, characterized in that: A feed hopper (23) is fixedly arranged on the top surface of the mixing barrel (1), and a sealing cover (24) is sealed on the surface of the feed hopper (23).

9. The organic silicon slurry recovery and treatment device according to claim 1, characterized in that: A filter box (25) is fixedly arranged on the top surface of the mixing barrel (1), a mounting frame (30) and filter cotton (31) are arranged on the inner wall of the filter box (25), a box cover (32) is arranged on one side surface of the filter box (25), and an exhaust pipe (29) is arranged on the top surface of the filter box (25).

10. The organic silicon slurry recovery and treatment device according to claim 6, characterized in that: The interior of the gas filter box (14) is filled with activated carbon, filter cotton and other structures, and a filter screen is arranged on the upper surface of the gas filter box (14).

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