A waste treatment apparatus for silicone production

Abstract

The present application relates to the technical field of waste treatment of organic silicon production, and discloses a waste treatment equipment for organic silicon production, which comprises a supporting mechanism, a reaction mechanism and a rotating mechanism; the reaction mechanism comprises a reaction tube, a heating assembly, a reaction tube connecting mechanism, the reaction tube has a feeding port, a discharging port and an exhaust port, the heating assembly is connected with the reaction tube and used for heating the reaction tube; the rotating mechanism comprises a rotating shaft, an auger assembly and a driving assembly, the rotating shaft is rotatable through the reaction tube, the auger assembly is built in the reaction tube and connected with the rotating shaft, and the driving assembly is connected with the rotating shaft and the supporting mechanism. The slurry slag formed in the organic silicon production process is introduced into the reaction tube through the feeding port, the reaction tube is heated by the heating assembly, the slurry slag is cracked into gaseous silane monomers in the reaction tube, and the silane monomers are discharged from the exhaust port; the auger assembly can scrape off the attachments on the inner wall of the reaction tube, and the rotating auger assembly can push the materials to move from the feeding port to the discharging port.

Description

Technical Field

[0001] This invention relates to the field of organosilicon production waste treatment technology, and in particular to a waste treatment device for organosilicon production. Background Technology

[0002] The slurry formed during the production of organosilicon consists mostly of high-boiling-point substances and a small amount of chlorosilane monomers, as well as some silicon powder and catalysts.

[0003] Currently, high-temperature pyrolysis is used to treat the slurry residue generated during organosilicon production. This method typically requires a reactor, where the temperature is raised to a high range of 300-900℃. At these temperatures, the Si-Si bonds within the high-boiling-point substances break, generating gaseous silane monomers. This high-temperature pyrolysis method has unique advantages: firstly, it has relatively relaxed requirements for raw materials, as it does not require pre-removal of solid impurities when treating high-boiling-point organosilicon production waste; secondly, it can pyrolyze almost all silanes, making it widely applicable.

[0004] However, when treating the slurry residue formed during the production of organosilicon using the high-temperature pyrolysis method, the high temperature will cause a lot of carbon deposits to form on the inner wall of the reactor. The carbon deposits in the reactor need to be cleaned manually and regularly to avoid affecting the heat conduction. Summary of the Invention

[0005] In view of this, it is necessary to provide a waste treatment device for organosilicon production to solve the technical problem of carbon buildup in the reaction equipment affecting heat transfer when the slurry formed during organosilicon production is treated by the high-temperature pyrolysis method in the prior art.

[0006] To achieve the above-mentioned technical objectives, the present invention provides a waste treatment device for organosilicon production, comprising:

[0007] Supporting institutions;

[0008] The reaction mechanism includes a reaction tube and a heating assembly. The reaction tube is connected to the support mechanism and has an inlet, an outlet, and an exhaust port. The heating assembly is connected to the reaction tube and is used to heat the reaction tube.

[0009] The rotating mechanism includes a rotating shaft, an auger assembly, and a drive assembly. The rotating shaft is rotatably passable through the reaction tube. The auger assembly is built into the reaction tube and connected to the rotating shaft. The drive assembly is connected to the rotating shaft and the support mechanism and is used to drive the rotating shaft to rotate.

[0010] In one embodiment, the waste treatment equipment for organosilicon production further includes a condensation mechanism, which includes a condenser and an exhaust assembly. The air inlet of the condenser is connected to the exhaust port, and the air inlet of the exhaust assembly is connected to the air outlet of the condenser.

[0011] In one embodiment, the screw conveyor assembly includes at least one first screw conveyor and at least one second screw conveyor, both of which are connected to the reaction tube and are spaced apart, with the first and second screw conveyors rotating in opposite directions.

[0012] In one embodiment, the reaction tube has an opening relative to the first screw conveyor;

[0013] The reaction mechanism further includes a cleaning component, which includes a sliding part, multiple cleaning parts, and a driving component. The sliding part is slidably connected to the outer wall of the reaction tube along the axial direction of the reaction tube and slidably closes the opening. The sliding part has multiple slots that communicate with the reaction tube. The multiple cleaning parts are slidably inserted into the multiple slots. The multiple cleaning parts are used to insert into the gap of the first auger to clean the gap of the first auger. The driving component connects the reaction tube and the multiple cleaning parts and is used to drive the multiple cleaning parts to slide in and out of the reaction tube.

[0014] In one embodiment, the cleaning assembly further includes a connecting portion that connects a plurality of the cleaning portions;

[0015] The drive member is slidably connected to the connecting part along the axial direction of the reaction tube, and is connected to multiple cleaning parts through the connecting part, and can drive multiple cleaning parts to slide into and out of the reaction tube through the connecting part.

[0016] In one embodiment, the pitch of the first auger is smaller than that of the second auger, and the length of the first auger along the axial direction of the shaft is greater than that of the second auger.

[0017] There are multiple first and second augers, and multiple second augers are combined to form a second auger unit. The number of second auger units in the auger assembly is multiple. Multiple second augers in the second auger unit are distributed circumferentially at intervals along the rotating shaft. The second auger units and the first augers are distributed alternately along the axial direction of the rotating shaft.

[0018] In one embodiment, the reaction mechanism further includes a limiting component disposed on the moving path of the connecting portion or the sliding portion and electrically connected to the driving member. When the connecting portion or the sliding portion slides against the limiting component, the connecting portion controls the driving member to move, causing the driving member to drive the plurality of cleaning portions to slide out of the reaction tube.

[0019] In one embodiment, the cleaning assembly further includes a first elastic element connected to the connecting portion and / or the sliding portion, and also connected to the reaction tube, for providing elastic force for the sliding portion and the connecting portion to return to their original position after sliding.

[0020] In one embodiment, the reaction mechanism further includes a heat insulation component, which is sleeved on the reaction tube and forms a fixed cavity between the heat insulation component and the reaction tube;

[0021] The heating component is built into the fixed cavity.

[0022] In one embodiment, the reaction mechanism further includes two water-cooled jackets, both of which are fitted onto the reaction tube and disposed at both ends of the reaction tube.

[0023] Compared with the prior art, the beneficial effects of the present invention include: The slurry formed during the organosilicon production process is fed into the reaction tube through the inlet; the reaction tube is heated by a heating component, and the temperature of the slurry in the reactor is controlled at 300-900℃. The slurry reacts and decomposes into gaseous silane monomers in the reaction tube, which are then discharged from the exhaust port. During the heating process, the drive component drives the rotating shaft to rotate, which in turn drives the auger assembly to rotate. The auger assembly can scrape off the deposits on the inner wall of the reaction tube, preventing carbon buildup that could affect heat transfer. Simultaneously, the rotating auger assembly can push the material from the inlet to the outlet, discharging the substances formed during the high-temperature decomposition reaction from the outlet. For example, at a temperature of 500℃, the slurry formed during the organosilicon production process decomposes to form methyltrichlorosilane and dimethylsilane. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of a waste treatment device for organosilicon production according to an embodiment of the present invention;

[0025] Figure 2 This is a schematic diagram of the structure of a waste treatment device for organosilicon production according to an embodiment of the present invention;

[0026] Figure 3 This is a schematic diagram of the structure of a waste treatment device for organosilicon production according to an embodiment of the present invention;

[0027] Figure 4 It is along Figure 3 Sectional view of line AA in the middle;

[0028] Figure 5 yes Figure 4 A magnified view of a portion of point B in the middle;

[0029] Figure 6 yes Figure 5 A magnified view of a portion of point C in the middle;

[0030] Figure 7 yes Figure 5 A magnified view of a portion of point D in the middle;

[0031] Figure 8 This is a schematic diagram of a portion of the cleaning components and mechanical limiting structure in the waste treatment equipment for organosilicon production according to an embodiment of the present invention;

[0032] Figure 9 This is a schematic diagram of a portion of the cleaning components and mechanical limiting structure in the waste treatment equipment for organosilicon production according to an embodiment of the present invention;

[0033] Figure 10 This is a schematic diagram of a portion of the cleaning components and mechanical limiting structure in the waste treatment equipment for organosilicon production according to an embodiment of the present invention;

[0034] Figure 11 This is a schematic diagram of a portion of the cleaning components and mechanical limiting structure in the waste treatment equipment for organosilicon production according to an embodiment of the present invention;

[0035] Figure 12 This is a schematic diagram of the structure of the rotating shaft and auger assembly in the waste treatment equipment for organosilicon production according to an embodiment of the present invention.

[0036] Explanation of reference numerals in the attached figures:

[0037] Supporting structure 1;

[0038] Reaction mechanism 2; reaction tube 21; heating assembly 22; cleaning assembly 23; sliding part 231; cleaning part 232; driving component 233; connecting part 234; fixed seat 235; limiting seat 236; first elastic element 237; limiting assembly 24; limit switch 241; third elastic part 242; mechanical limiting structure 25; sleeve 251; limiting rod 252; slide bar 253; through groove 253a; first elastic part 254; second elastic part 255; heat insulation assembly 26; water cooling jacket 27;

[0039] Rotating mechanism 3; rotating shaft 31; auger assembly 32; first auger 321; second auger 322; drive assembly 33;

[0040] Condensing mechanism 4; condenser 41; air extraction assembly 42. Detailed Implementation

[0041] Preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which form part of this application and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not intended to limit the scope of the present invention.

[0042] like Figure 1 and Figure 4 As shown, the present invention provides a waste treatment device for organosilicon production, including a support mechanism 1, a reaction mechanism 2, and a rotating mechanism 3. The reaction mechanism 2 includes a reaction tube 21 and a heating component 22. The reaction tube 21 is connected to the support mechanism 1 and has an inlet, an outlet, and an exhaust port. The heating component 22 is connected to the reaction tube 21 and is used to heat the reaction tube 21. The rotating mechanism 3 includes a rotating shaft 31, an auger assembly 32, and a drive assembly 33. The rotating shaft 31 can rotatably pass through the reaction tube 21. The auger assembly 32 is built into the reaction tube 21 and connected to the rotating shaft 31. The drive assembly 33 is connected to the rotating shaft 31 and the support mechanism 1 and is used to drive the rotating shaft 31 to rotate.

[0043] The slurry formed during the organosilicon production process is fed into the reaction tube 21 through the feed inlet. The reaction tube 21 is heated by the heating component 22, and the temperature of the slurry in the reactor is controlled at 300-900℃. The slurry reacts and decomposes into gaseous silane monomers in the reaction tube 21, and the silane monomers are discharged from the exhaust port. During the heating process of the heating component 22, the drive component 33 drives the rotating shaft 31 to rotate, and the rotating shaft 31 drives the auger component 32 to rotate. The auger component 32 can scrape off the deposits on the inner wall of the reaction tube 21 to prevent carbon buildup on the inner wall of the reaction tube 21 from affecting heat transfer. At the same time, the rotating auger component 32 can push the material from the feed inlet to the discharge outlet, and can discharge the substances formed during the high-temperature decomposition reaction from the discharge outlet.

[0044] Taking a temperature of 500℃ as an example, at this temperature, the slurry formed during the organosilicon production process decomposes to form methyltrichlorosilane and dimethylsilane. It should be understood that when treating slurry with slurry through high-temperature decomposition reaction, some additives can be added to the reaction tube 21 to promote the reaction.

[0045] In order to collect the gaseous products formed during the high-temperature pyrolysis process, for this purpose, such as Figure 1 and Figure 3 As shown, in one embodiment, the waste treatment equipment for organosilicon production also includes a condensation mechanism 4, which includes a condenser 41 and an exhaust assembly 42. The air inlet of the condenser 41 is connected to the exhaust port, and the air inlet of the exhaust assembly 42 is connected to the air outlet of the condenser 41.

[0046] During the high-temperature pyrolysis of slurry, gaseous silane monomers are formed. The gas extraction component 42 is activated to extract the gas from the reaction tube 21. When the gas passes through the condenser 41, the gaseous silane monomers are pre-cooled and liquefied to form liquid products, which can separate the silane monomers from the gas. The gas extracted by the gas extraction component 42 is then discharged after being treated to be harmless.

[0047] It should be understood that the condenser 41 can be a water-cooled condenser 41, an evaporative condenser 41, a plate condenser 41, etc.; the air extraction assembly 42 can be an exhaust fan, an air pump, etc.

[0048] It should be understood that the bottom of the condenser 41 has a drain port through which the liquefied products are discharged.

[0049] It should be understood that the heating component 22 can be an electric heating tube, a steam heating jacket, a gas heating device, etc.; the number of heating components 22 can be one or more, etc. In one embodiment, the number of heating components 22 is multiple, and the multiple heating components 22 are distributed at intervals along the circumference of the reaction tube 21.

[0050] It should be understood that the reaction tube 21 can be made of quartz, stainless steel, etc.; the cross-section of the reaction tube 21 can be circular, square, polygonal, etc.

[0051] In order to break up the material being conveyed by the auger assembly 32, for this purpose, such as Figure 12 As shown, in one embodiment, the screw conveyor assembly 32 includes at least one first screw conveyor 321 and at least one second screw conveyor 322, both of which are connected to the reaction tube 21 and are spaced apart, with the first screw conveyor 321 and the second screw conveyor 322 rotating in opposite directions.

[0052] By setting up a first auger 321 and a second auger 322, the first auger 321 pushes the slurry in the reaction tube 21 from the feed port toward the discharge port. During the process of the first auger 321 pushing the slurry, the slurry is compressed by the pressure. When the slurry moves to the second auger 322, since the rotation direction of the second auger 322 is opposite to that of the first auger 321, it will push the slurry in the opposite direction, which can break up the compressed slurry, making the slurry loose and facilitating uniform heating of the slurry. This can accelerate the high-temperature pyrolysis of the slurry and avoid incomplete reaction.

[0053] It should be understood that the first auger 321 and the second auger 322 can be spiral-shaped strips.

[0054] Since the slurry needs to be moved from the inlet to the outlet by the screw conveyor assembly 32, therefore, as Figure 12As shown, in one embodiment, the pitch of the first auger 321 is smaller than that of the second auger 322, and the length of the first auger 321 along the axial direction of the shaft 31 is greater than that of the second auger 322.

[0055] With the above configuration, when the rotating shaft 31 rotates, it will simultaneously drive the first auger 321 and the second auger 322 to rotate. Since the pitch of the first auger 321 is smaller than that of the second auger 322, and the length of the first auger 321 is greater than that of the second auger 322, the pushing force applied by the first auger 321 to the slurry is greater than that applied by the second auger 322 to the slurry. While the second auger 322 disperses the slurry, the slurry can pass through the second auger 322 under the push of the first auger 321, so that the slurry can move along the axial direction of the rotating shaft 31 under the push of the auger assembly 32, and so that the slurry can move smoothly from the feed port to the discharge port.

[0056] It should be understood that in the auger assembly 32, there can be one, two, or more augers, such as... Figure 12 As shown, in one embodiment, there are multiple first augers 321 and multiple second augers 322. Multiple second augers 322 are combined to form a second auger 322 unit. The number of second auger 322 units in the auger assembly 32 is multiple. Multiple second augers 322 in the second auger 322 unit are distributed at intervals along the circumference of the rotating shaft 31. The second auger 322 units and the first augers 321 are distributed alternately along the axial direction of the rotating shaft 31.

[0057] In this embodiment, the first auger 321 adopts a small pitch and long stroke design to form a high compression ratio conveying section. By increasing the helix angle, the axial movement speed of the material is reduced, resulting in greater axial thrust per unit length, which is particularly suitable for processing high-viscosity, easily deposited slurry-like materials. The second auger 322 unit adopts a large pitch combined with a circumferential multi-helix structure to form a discrete processing section. Its increased radial component can realize the centrifugal diffusion of materials, and together with the multiple circumferentially distributed second augers 322, a shear field is formed, effectively breaking the material agglomeration phenomenon. The axially alternating first auger 321 and second auger 322 units... The system forms a pulsating conveying mode from compression to release. Pressure accumulates at the first auger 321, while the pressure is reduced at the second auger 322 unit through multi-spiral diversion. This prevents material blockage caused by over-compression and maintains the pressure gradient required for continuous conveying. The circumferentially spaced second auger 322 units form an asymmetric flow field. The circumferential phase difference θ = 360° / n (when n≥3) can generate vortex secondary flow, which enables the material to move axially while generating a self-cleaning effect. Actual measurements show that this design can reduce the wall residue by 42%. The system's length-to-diameter ratio can be flexibly adjusted by increasing or decreasing the number of alternating units.

[0058] In order to drive the slurry and slag to move axially along the reaction tube 21 via the first auger 321, the pitch of the first auger 321 needs to be set relatively small. A small pitch results in a small distance between adjacent spirals of the first auger 321. During high-temperature pyrolysis, carbon and slurry and slag may accumulate and adhere within the gaps between adjacent spirals of the first auger 321. Therefore, as... Figures 4 to 11 As shown, in one embodiment, the reaction tube 21 has an opening relative to the first auger 321; the reaction mechanism 2 also includes a cleaning component 23, which includes a sliding part 231, a plurality of cleaning parts 232 and a driving member 233. The sliding part 231 is slidably connected to the outer wall of the reaction tube 21 along the axial direction and slidably closes the opening. The sliding part 231 has a plurality of slots communicating with the reaction tube 21. The plurality of cleaning parts 232 are slidably inserted into the plurality of slots. The plurality of cleaning parts 232 are used to insert into the gap of the first auger 321 to clean the gap of the first auger 321. The driving member 233 is connected to the reaction tube 21 and the plurality of cleaning parts 232 and is used to drive the plurality of cleaning parts 232 to slide into and out of the reaction tube 21.

[0059] When cleaning of the first auger 321 is required, feeding into the inlet of the reaction tube 21 is stopped, and then the drive unit 233 is activated. The drive unit 233 drives the cleaning part 232 to slide relative to the slot and slide into the reaction tube 21, so that the cleaning part 232 is inserted into the gap between adjacent spirals in the first auger 321. The drive assembly 33 is activated, and the drive assembly 33 drives the rotating shaft 31 to rotate. The rotating shaft 31 drives the first auger 321 to rotate. The first auger 321 squeezes the cleaning part 232. Since the cleaning part 232 is slidably connected to the reaction tube 21 along the axial direction of the reaction tube 21 via the sliding part 231, the first auger 321 pushes the cleaning part 232 to move along the axial direction of the reaction tube 21, and the first auger 321 rotates relative to the cleaning part 232. The cleaning part 232 cleans the rotating first auger 321. After cleaning is completed, the drive unit 233 drives the cleaning part 232 to slide out of the reaction tube 21.

[0060] By providing a sliding part 231, which is slidably connected to the reaction tube 21, the sliding part 231 allows the cleaning part 232 to slide in and out of the reaction tube 21, and allows the cleaning part 232 to drive the sliding part 231 to move along the axial direction of the reaction tube 21. When the sliding part 231 slides, it can always seal the opening of the reaction tube 21, preventing the slurry in the reaction tube 21 from overflowing outward from the opening. At the same time, when the driving member 233 drives the cleaning part 232 to slide out of the reaction tube 21, it is always inserted into the slot and the slot is closed, preventing the slurry from overflowing outward from the slot.

[0061] It should be understood that the opening is located at the top of the reaction tube 21, but it can also be located in other positions.

[0062] It should be understood that the sliding part 231 can be slidably connected to the reaction tube 21 by means of a groove and a slider, or a limiting rod can be provided on the reaction tube 21 to limit the sliding direction of the sliding part 231 and prevent the sliding part 231 from rotating relative to the reaction tube 21.

[0063] It should be understood that the drive component 233 can be a cylinder, a hydraulic cylinder, or an electric push rod, etc.

[0064] It should be understood that multiple slots on the sliding part 231 are distributed at intervals along the axial direction of the reaction tube 21. The cleaning part 232 and the slots can correspond one-to-one, or multiple cleaning parts 232 can be inserted into one slot.

[0065] It should be understood that when multiple cleaning parts 232 clean the gaps within the spiral of the first auger 321, the more cleaning parts 232 there are, the smaller the distance that the multiple cleaning parts 232 need to move when cleaning the gaps within the first auger 321.

[0066] It should be understood that the dimensions of the multiple cleaning sections 232 may be the same or different. The cleaning sections 232 may be block-shaped, rod-shaped, etc. Specifically, in one embodiment, the dimensions of the multiple cleaning sections 232 gradually increase along the conveying direction of the first auger 321, and the dimensions gradually increase along the axial direction of the reaction tube 21.

[0067] In this embodiment, multiple cleaning units 232 sequentially clean the gaps in the first auger 321. As the size gradually increases, the gaps in the first auger 321 can be cleaned gradually, and the cleaning force gradually increases to avoid the cleaning unit 232 getting stuck in the first auger 321 due to excessive cleaning force in a single cleaning.

[0068] Since the first screw conveyor 321 will push the cleaning section 232 to move axially along the reaction tube 21, the cleaning section 232 needs to slide relative to the drive member 233. Therefore, as Figure 4 and Figure 8 As shown, in one embodiment, the cleaning component 23 further includes a connecting portion 234, which connects to a plurality of cleaning portions 232; the driving member 233 is slidably connected to the connecting portion 234 along the axial direction of the reaction tube 21, and is connected to the plurality of cleaning portions 232 via the connecting portion 234, and is able to drive the plurality of cleaning portions 232 to slide into and out of the reaction tube 21 via the connecting portion 234.

[0069] In this embodiment, by providing a connecting part 234, the driving member 233 can drive multiple cleaning parts 232 to slide into and out of the reaction tube 21 via the connecting part 234. When the cleaning part 232 cleans the first auger 321, the first auger 321 will push the cleaning part 232 to move along the axial direction of the reaction tube 21, so that the cleaning part 232 drives the connecting part 234 to move along the axial direction of the reaction tube 21, and drives the connecting part 234 to slide relative to the driving member 233. This allows the driving member 233 to both drive the cleaning part 232 to slide into and out of the reaction tube 21 via the connecting part 234, and also avoids the driving member 233 from obstructing the connecting part 234 and the cleaning part 232.

[0070] When the cleaning unit 232 cleans the first auger 321, the first auger 321 drives the connecting part 234 to move axially along the reaction tube 21. After the cleaning unit 232 completes cleaning the first auger 321, the first auger 321 pushes the connecting part 234 and the reaction tube 21 to continue sliding. When the cleaning unit 232 slides against the second auger 322, since the second auger 322 rotates in the opposite direction to the first auger 321, the second auger 322 pushes the cleaning unit 232 and the connecting part 234 to move in the opposite direction, causing the cleaning unit 232 to be subjected to two opposing forces until it is damaged. To prevent the cleaning unit 232 from being damaged, therefore, as follows: Figure 4 and Figure 5 As shown, in one embodiment, the reaction mechanism 2 further includes a limiting component 24, which is disposed on the moving path of the connecting part 234 or the sliding part 231 and is electrically connected to the driving member 233. When the connecting part 234 or the sliding part 231 slides against the limiting component 24, the connecting part 234 controls the driving member 233 to move, and causes the driving member 233 to drive the multiple cleaning parts 232 to slide out of the reaction tube 21.

[0071] By setting a limiting component 24, which is located on the moving path of the connecting part 234 or the sliding part 231, when the cleaning part 232 cleans the first auger 321, it will push the connecting part 234 and the sliding part 231 to gradually approach the limiting component 24. When the sliding part 231 or the connecting part 234 abuts against the limiting component 24, the limiting component 24 controls the driving member 233 to move. The driving member 233 drives multiple cleaning parts 232 to slide out of the reaction tube 21 via the connecting part 234, thus preventing the cleaning parts 232 from sliding against the second auger 322.

[0072] It should be understood that the limit component 24 can be a limit switch, a travel switch 241, or a photoelectric switch, etc.

[0073] By setting the limit switch 241, when the connecting part 234 or the sliding part 231 slides against the limit switch 241, the limit switch 241 is triggered, and the limit switch 241 drives the multiple cleaning parts 232 to slide out of the reaction tube 21.

[0074] Since the limiting component 24 is located outside the reaction tube 21, it is subject to the erosion caused by the temperature of the reaction tube 21, which may lead to failure. Therefore, such as Figures 4 to 11 As shown, in one embodiment, the cleaning component 23 further includes a fixing seat 235 and a limiting seat 236. The fixing seat 235 is connected to a plurality of cleaning parts 232, and the limiting seat 236 is connected to the reaction tube 21. The reaction mechanism 2 further includes a mechanical limiting structure 25, which includes a plurality of sleeves 251, a plurality of limiting rods 252, a slide bar 253, at least one first elastic part 254, and at least one second elastic part 255. The sleeves 251 are connected to the fixing seat 235, and the peripheral wall of the sleeves 251 has a through hole in the radial direction. One end of the limiting rod 252 is slidably inserted into the sleeve 251, and the other end is connected to the connecting part 234. The connecting part 234 is connected to the plurality of cleaning parts 232 via the limiting rod 252, the sleeve 251, and the fixing seat 235. The slide bar 253 is opposite to... A limiting seat 236 is provided and is slidably inserted into the through holes of multiple sleeves 251. A sliding strip 253 has multiple through slots 253a relative to the limiting rod 252. The multiple through slots 253a correspond one-to-one with the limiting rod 252. The multiple through slots 253a are distributed at intervals along the length direction. The through slots 253a allow the limiting rod 252 to pass through. The sliding strip 253 prevents the limiting rod 252 from sliding close to the fixed seat 235. After the sliding strip 253 slides, the through slot 253a slides to the corresponding limiting rod 252, so that the limiting rod 252 can slide through the through slot 253a. The first elastic part 254 connects the fixed seat 235 and the connecting part 234 to provide elastic force for the fixed seat 235 and the connecting part 234 to move closer to each other. The second elastic part 255 connects the sliding strip 253 and the sleeve 251.

[0075] When the limiting component 24 fails, the sliding part 231 or the connecting part 234 slides against the limiting component 24. The sliding part 231 and the connecting part 234 continue to slide, and the slide bar 253 abuts against the fixed seat 235. Under the obstruction of the fixed seat 235, the slide bar 253 slides relative to the sleeve 251 until the through groove 253a of the slide bar 253 slides relative to the limiting rod 252. At this time, the elastic restoring force of the first elastic part 254 drives the limiting rod 252 to pass through the sleeve 251 and further insert. Inside the sleeve 251, under the elastic restoring force of the first elastic part 254, the fixed seat 235 and multiple cleaning parts 232 are driven to slide out of the reaction tube 21. Even if the limiting component 24 fails, the cleaning parts 232 can be driven to slide out of the reaction tube 21 and continue to move to abut against the second auger 322. By providing the second elastic part 255, the second elastic part 255 can drive the slide bar 253 to the position of blocking the limiting rod 252 when the sleeve is not subjected to external force.

[0076] After the mechanical limiting structure 25 is set, when the connecting part 234 or the sliding part 231 slides against the limiting component 24, if the limiting component 24 is stably fixed, the limiting component 24 will block the sliding of the connecting part 234 and the sliding part 231. Therefore, if Figure 7 As shown, in one embodiment, the limiting component 24 includes a limit switch 241 and a third elastic part 242. The limit switch 241 is disposed on the sliding path of the connecting part 234 or the sliding part 231, and the third elastic part 242 is connected to the cleaning part 232 and the limit switch 241.

[0077] By setting a limit switch 241, when the connecting part 234 or the sliding part 231 slides against the limit switch 241, the limit switch 241 controls the drive member 233 to move, and the drive member 233 drives the cleaning part 232 to slide out of the reaction tube 21; by setting a third elastic part 242, when the limit switch 241 fails, the third elastic part 242 can allow the connecting part 234, the sliding part 231 and the limit switch 241 to slide when the limit switch 241 is against it, so as to prevent the limit switch 241 from obstructing the continued movement of the connecting part 234 and the sliding part 231.

[0078] When the cleaning part 232 cleans the first auger 321, the first auger 321 pushes the cleaning part 232 to slide along the axial direction of the reaction tube 21. When the connecting part 234 or the sliding part 231 slides against the limiting component 24, the driving member 233 drives the cleaning part 232 to slide out of the reaction tube 21. At this time, the sliding part 231, the connecting part 234 and the cleaning part 232 are a certain distance away from the initial position. In order to facilitate the next cleaning of the first auger 321, in one embodiment, the cleaning component 23 further includes a first elastic member 237. The first elastic member 237 connects the connecting part 234 and / or the sliding part 231, and also connects to the reaction tube 21, and is used to provide the elastic force for the sliding part 231 and the connecting part 234 to reset after sliding.

[0079] In this embodiment, by providing a first elastic element 237, when the cleaning part 232 cleans the first auger 321, the first auger 321 pushes the cleaning part 232, the sliding part 231, and the connecting part 234 to slide along the axial direction of the reaction tube 21. During the sliding process of the cleaning part 232, the sliding part 231, and the connecting part 234, the first elastic element 237 will be stretched. The first elastic element 237 is stretched and accumulates elastic restoring force. When the driving member 233 drives the cleaning part 232 to slide out of the reaction tube 21, the cleaning part 232 disengages from the first auger 321, and the cleaning part 232 loses the force that pushed it away from the initial position by the first auger 321. At this time, the elastic restoring force of the first elastic element 237 is applied, and the first elastic element 237 pushes the sliding part 231, the cleaning part 232, and the connecting part 234 to slide back to their original positions, so that the cleaning part 232 can be driven by the driving member 233 to clean the first auger 321 again.

[0080] It should be understood that the first elastic element 237 can be a spring, an elastic strip, or an elastic rod, etc.

[0081] It should be understood that the first elastic element 237 can be directly connected to the reaction tube 21 or indirectly connected to the reaction tube 21. In one embodiment, the first elastic element 237 is connected to the heat insulation component 26 and connected to the reaction tube 21 via the heat insulation component 26.

[0082] When heating the reaction tube 21 using the heating assembly 22, to prevent heat leakage to the outside, therefore, as follows: Figure 2 and Figure 4 As shown, in one embodiment, the reaction mechanism 2 further includes a heat insulation component 26, which is sleeved on the reaction tube 21 and forms a fixed cavity with the reaction tube 21; the heating component 22 is built into the fixed cavity.

[0083] In this embodiment, by setting up a heat insulation component 26, a fixed cavity is formed between the heat insulation component 26 and the reaction tube 21, and the heating component 22 is built into the fixed cavity. This can confine the heat generated by the heating component 22 during heating within the fixed cavity and reduce the outward loss of heat.

[0084] To prevent the reaction tube 21, which is outside the insulation component 26, from being at a high temperature, therefore, as Figure 2 and Figure 4 As shown, in one embodiment, the reaction mechanism 2 further includes two water-cooled jackets 27, both of which are sleeved on the reaction tube 21 and located at both ends of the reaction tube 21.

[0085] In this embodiment, two water-cooled jackets 27 are provided and fitted onto both ends of the reaction tube 21. The water-cooled jackets 27 can cool both ends of the reaction tube 21. By circulating cooling water into the water-cooled jackets 27, the cooling water cools the water-cooled jackets 27 and the reaction tube 21, preventing heat from being transferred to both ends of the reaction tube 21 and preventing the reaction tube 21 outside the heat insulation component 26 from being at a high temperature.

[0086] It should be understood that, since carbon easily accumulates in the part of the heating component 22 that heats the reaction tube 21, the cleaning component 23 and the mechanical limiting structure 25 are mainly installed in the heated part of the reaction tube 21 to clean the auger assembly 32 inside. When the auger assembly 32 has multiple first augers 321 in the augers located in the heated part of the reaction tube 21, it is possible to clean only the first augers 321 located at the beginning and end, or to additionally install a set of cleaning components 23, limiting components 24 and mechanical limiting structures 25 to clean multiple first augers 321. When additional cleaning components 23, limiting components 24 and mechanical limiting structures 25 are installed, the specific connection of the structure can be adjusted accordingly as needed.

[0087] In this invention, the connection can be a direct connection or an indirect connection via other components.

[0088] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention.

Claims

1. A waste treatment device for organosilicon production, characterized in that, include: Supporting institutions; The reaction mechanism includes a reaction tube and a heating assembly. The reaction tube is connected to the support mechanism and has an inlet, an outlet, and an exhaust port. The heating assembly is connected to the reaction tube and is used to heat the reaction tube. A rotating mechanism includes a rotating shaft, an auger assembly, and a drive assembly. The rotating shaft is rotatably passable through the reaction tube. The auger assembly is built into the reaction tube and connected to the rotating shaft. The drive assembly is connected to the rotating shaft and the support mechanism and is used to drive the rotating shaft to rotate. The screw conveyor assembly includes at least one first screw conveyor and at least one second screw conveyor, both of which are connected to the reaction tube and are spaced apart, with the first screw conveyor and the second screw conveyor rotating in opposite directions. The reaction tube has an opening relative to the first screw conveyor; The reaction mechanism further includes a cleaning component, which includes a sliding part, multiple cleaning parts, and a driving component. The sliding part is slidably connected to the outer wall of the reaction tube along the axial direction of the reaction tube and slidably closes the opening. The sliding part has multiple slots that communicate with the reaction tube. The multiple cleaning parts are slidably inserted into the multiple slots. The multiple cleaning parts are used to insert into the gap of the first auger to clean the gap of the first auger. The driving component connects the reaction tube and the multiple cleaning parts and is used to drive the multiple cleaning parts to slide in and out of the reaction tube. The cleaning component further includes a connecting portion that connects to a plurality of the cleaning portions; The drive member is slidably connected to the connecting part along the axial direction of the reaction tube, and is connected to multiple cleaning parts through the connecting part, and can drive multiple cleaning parts to slide into and out of the reaction tube through the connecting part.

2. The waste treatment equipment for organosilicon production according to claim 1, characterized in that: It also includes a condensing mechanism, which includes a condenser and an air extraction assembly. The air inlet of the condenser is connected to the exhaust port, and the air inlet of the air extraction assembly is connected to the air outlet of the condenser.

3. The waste treatment equipment for organosilicon production according to claim 1, characterized in that: The pitch of the first auger is smaller than that of the second auger, and the length of the first auger along the axial direction of the shaft is greater than that of the second auger; There are multiple first and second augers, and multiple second augers are combined to form a second auger unit. The number of second auger units in the auger assembly is multiple. Multiple second augers in the second auger unit are distributed circumferentially at intervals along the rotating shaft. The second auger units and the first augers are distributed alternately along the axial direction of the rotating shaft.

4. The waste treatment equipment for organosilicon production according to claim 1, characterized in that: The reaction mechanism further includes a limiting component, which is disposed on the moving path of the connecting part or the sliding part and is electrically connected to the driving member. When the connecting part or the sliding part slides against the limiting component, the connecting part controls the driving member to move, and the driving member drives the plurality of cleaning parts to slide out of the reaction tube.

5. The waste treatment equipment for organosilicon production according to claim 1, characterized in that: The cleaning assembly further includes a first elastic element, which connects the connecting portion and / or the sliding portion, and is also connected to the reaction tube, for providing elastic force to allow the sliding portion and the connecting portion to return to their original position after sliding.

6. The waste treatment equipment for organosilicon production according to claim 1, characterized in that: The reaction mechanism also includes a heat insulation component, which is sleeved on the reaction tube and forms a fixed cavity between the heat insulation component and the reaction tube; The heating component is built into the fixed cavity.

7. The waste treatment equipment for organosilicon production according to claim 1, characterized in that: The reaction mechanism also includes two water-cooled jackets, both of which are fitted onto the reaction tube and located at both ends of the reaction tube.

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