Twin-screw waste-modification apparatus

Abstract

The application relates to the field of waste treatment, in particular to a double-screw waste modification device, which comprises a double-screw waste modification mechanism, and the double-screw waste modification mechanism is provided with a waste mixing box, and the waste mixing box is provided with a double-screw assembly. When waste plastic is treated, the double-screw waste modification mechanism is arranged to treat liquid waste after a modifying agent is added, the double-screw assembly is arranged to transport the liquid waste, the double-screw assembly can also extrude and cut the liquid waste in the process, so that the liquid waste is better mixed with the modifying agent, and multiple bottom waste back scraping mechanisms arranged on two sides can scrape and agitate the liquid waste deposited on the bottom and not transported away by the double-screw assembly, so that the liquid waste can be agitated by the double-screw assembly and then continuously transported out, effectively solving the problem that a part of the liquid waste deposited on the bottom and containing a large amount of impurities cannot be well mixed and transported out.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of waste treatment, and particularly relates to a double-screw waste modification device. BACKGROUND

[0002] Waste plastics are collectively referreded to as plastics that have been used and eventually discarded or replaced in civil, industrial and other uses. They are plastics that take 500-1000 years to decompose and often cause large-scale pollution. Therefore, many recyclable waste plastics can be recycled and utilized after waste modification treatment. Chemical recycling can heat the recyclable waste plastics into a liquid state, and then add related modification reagents. In the waste plastic regeneration process, the modification technology can further improve the performance of the waste plastics. The principle of the modification technology is to modify the waste plastics by adding additives, fillers and the like. Modification can improve the strength, toughness, heat resistance and other properties of the plastics.

[0003] In the entire waste recycling system, the waste is first preliminarily mixed and stirred and then sent to a single-screw extrusion heater for heating and mixing into a liquid state, and finally the modification reagent is added for further mixing and stirring.

[0004] Most of the single-screw extrusion heaters can heat most of the plastics to become liquid through chemical reaction, but there are still a small amount of solid plastics that cannot be decomposed. Most of the single-screw extrusion heaters can filter out most of the solid plastics with a large volume, but some solid impurities with a small volume cannot be filtered and will flow into the subsequent equipment along with the liquid waste.

[0005] The waste fluid with small solid impurities will be precipitated at the bottom of the double-screw waste modification device due to the driving of the solid impurities. Because most of the solid impurities are heavy, some of the solid impurities will precipitate at the bottom along with a part of the liquid waste when the double-screw assembly extrudes and conveys. These precipitates are not easy to be extruded and conveyed out by the double screw, so more and more solid impurities will be precipitated at the bottom. SUMMARY

[0006] The purpose of the present application is to solve the problems in the prior art and provide a double-screw waste modification device.

[0007] In order to achieve the above purpose, the present application adopts the following technical scheme:

[0008] The utility model provides a double screw waste modification equipment, including double screw waste modification mechanism, double screw waste modification mechanism is provided with waste mixing box, is provided with double screw subassembly in waste mixing box, is provided with the discharge gate in one side of waste mixing box upper surface, waste mixing box body one side is connected with double shaft drive subassembly, double shaft drive subassembly is connected and drives double screw subassembly, the upper surface of waste mixing box is evenly arranged with a plurality of drive mechanisms along the longitudinal direction, and the both sides of drive mechanism are all equipped with bottom waste back scraping mechanism, and the other side of bottom waste back scraping mechanism is connected with chain transmission mechanism away from drive mechanism, and the outside of chain transmission mechanism is provided with the protection box,

[0009] The bottom waste back scraping mechanism includes a third bevel gear, the third bevel gear is connected with the drive mechanism, a connecting shaft is connected to the middle of the bottom end surface of the third bevel gear, a third bearing seat is arranged in the middle of the connecting shaft, the third bearing seat is installed on the upper surface of the waste mixing box, a back scraping frame is fixedly connected to the bottom end of the shaft body of the connecting shaft, and the back scraping frame is symmetrically arranged on both sides of the double screw subassembly.

[0010] A plurality of circular arc walls are arranged on the back scraping frame, a guide groove is formed on one side of the circular arc wall, the inner wall of the guide groove has a certain inclined curvature, and a limiting lug plate is fixedly connected above the guide groove.

[0011] In addition, preferably, the drive mechanism includes a double-shaft motor, a first bevel gear is arranged at the end of the shaft body of the output end on both sides of the double-shaft motor, a third bevel gear is arranged below the first bevel gear, the first bevel gear is engaged with the third bevel gear, and a dustproof frame is arranged at the connection position of the first bevel gear and the third bevel gear.

[0012] In addition, preferably, the dustproof frame includes a support rod, the support rod is installed on the upper surface of the waste mixing box, a dust cover is arranged on the top of the rod body of the support rod, and the dust cover covers the connection position of the first bevel gear and the third bevel gear.

[0013] In addition, preferably, the chain transmission mechanism includes a first transmission assembly, the first transmission assembly is connected with the third bevel gear, a second transmission assembly is arranged on one side of the first transmission assembly, and a waste stirring mechanism is arranged on one side of the second transmission assembly.

[0014] The first transmission assembly includes a first transmission shaft, a second bevel gear is arranged at one end of the shaft body of the first transmission shaft, the second bevel gear is arranged above the third bevel gear, the second bevel gear is engaged with the third bevel gear, and a first sprocket is arranged at the other end of the shaft body of the first transmission shaft away from the second bevel gear.

[0015] The second transmission assembly includes a second transmission shaft, a first bearing seat is arranged in the middle of the second transmission shaft, a waste stirring mechanism is arranged at one end of the shaft body of the second transmission shaft, and a second sprocket is arranged at the other end of the shaft body of the second transmission shaft away from the waste stirring mechanism.

[0016] The second sprocket is externally sleeved with a chain.

[0017] In addition, preferably, the waste stirring mechanism comprises a connecting head, which is assembled to one end of the second transmission shaft body, and a plurality of stirring plates are uniformly welded on the side wall of the connecting head.

[0018] A welding head is arranged on one side of the stirring plate body, the upper and lower ends of the welding head are in arc shape, an arc groove is formed on the upper surface of the stirring plate, and a plurality of flow dividing plates are horizontally and uniformly arranged on the inner bottom wall of the arc groove.

[0019] A cavity is formed on one side of the arc groove, an arc plate is arranged on the upper surface of the stirring plate body in the cavity, the arc plate is inclined at a certain angle towards the arc groove, a plurality of first liquid discharge holes are uniformly formed on the upper surface of the stirring plate in the cavity, and a plurality of second liquid discharge holes are uniformly formed on the side wall of the stirring plate on one side of the first liquid discharge holes.

[0020] In addition, preferably, a plurality of mounting holes are uniformly formed on the side walls of the waste mixing box body, a first bearing seat is mounted in the mounting hole, a plurality of rotating boxes are arranged on the side walls of the waste mixing box body, the bottom waste back scraping mechanism is arranged to rotate in the inner cavity of the rotating box, a protective cover is mounted above each waste stirring mechanism on the side edges on both sides of the upper surface of the waste mixing box, and a discharge port is arranged on the side, away from the connecting, of the waste mixing box.

[0021] In addition, preferably, the protective box is arranged outside the chain transmission mechanism, the protective box is mounted on the side wall surfaces of the waste mixing box, a protective cover plate is mounted on one side of the protective box body, a second bearing seat is arranged on the protective cover plate, and a first transmission shaft is rotatably arranged in the inner ring of the second bearing seat.

[0022] The present application has the following advantages: in the process of plastic waste treatment, the double-screw waste modification mechanism is used to treat the liquid waste after adding a modifying agent, the double-screw assembly is used to transport the liquid waste, and the double-screw assembly can also extrude and cut the liquid waste in the process, so that the liquid waste is better mixed with the modifying agent, the multiple bottom waste back scraping mechanisms arranged on both sides can scrape and stir the liquid waste that is deposited on the bottom and has not been transported by the double-screw assembly, so that the liquid waste is stirred and transported by the double-screw assembly, and the problem that the liquid waste that is deposited on the bottom and has a large amount of impurities cannot be well mixed and transported is effectively solved.

[0023] And the waste stirring mechanism on one side stirs the liquid waste with solid impurities precipitated on the bottom in a counterclockwise manner, and the stirring plate can also play a certain filtering role to filter out part of the fixed impurities, and further stir the waste with a large amount of solid impurities precipitated on the bottom to the upper layer for extrusion transmission by the double screw assembly. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of the waste treatment system as a whole.

[0025] Figure 2 It is a structural schematic diagram of the double-screw waste modification equipment.

[0026] Figure 3 It is a structural schematic diagram of the waste mixing box.

[0027] Figure 4 It is a structural schematic diagram of the waste mixing box when the internal mechanism is installed.

[0028] Figure 5 It is a structural schematic diagram of the waste mixing box when the internal mechanism is not installed.

[0029] Figure 6 It is a sectional view of the waste mixing box.

[0030] Figure 7 It is a structural schematic diagram of the driving mechanism installed on the waste mixing box.

[0031] Figure 8 It is a structural schematic diagram of the bottom waste back scraping mechanism connected with the driving mechanism.

[0032] Figure 9 It is a structural schematic diagram of the driving mechanism connected with the driving part.

[0033] Figure 10 It is a structural schematic diagram of the protection box after being disassembled.

[0034] Figure 11 It is a structural schematic diagram of the chain transmission mechanism connected with the waste stirring mechanism.

[0035] Figure 12 It is a structural schematic diagram of the chain transmission mechanism after being disassembled.

[0036] Figure 13 It is a structural schematic diagram of the bottom waste back scraping mechanism.

[0037] Figure 14 It is a structural schematic diagram of the back scraping frame.

[0038] Figure 15 It is a structural schematic diagram of the stirring plate.

[0039] Figure 16 is a sectional view of the stirring plate.

[0040] In the figure: 100, waste mixing stirring tank; 200, waste conveyor; 300, single screw mixing heating machine; 301, discharge pipe; 400, double screw waste modification mechanism; 500, liquid cooling box; 1, waste mixing box; 11, mounting hole; 12, rotating box; 13, discharge port; 14, protective cover; 2, double shaft driving assembly; 3, discharge port; 4, driving mechanism; 41, double shaft motor; 42, first bevel gear; 5, chain transmission mechanism; 51, first transmission assembly; 511, first transmission shaft; 512, second bevel gear; 513, first sprocket; 52, chain; 53, second transmission assembly; 531, second transmission shaft; 532, first bearing seat; 533, second sprocket; 6, dustproof frame; 61, support rod; 62, dust cover; 7, double screw assembly; 8, bottom waste back scraping mechanism; 81, third bevel gear; 82, connecting shaft; 83, back scraping frame; 831, arc wall; 832, flow guide groove; 833, limiting lug; 84, third bearing seat; 9, waste stirring mechanism; 91, connecting head; 92, stirring plate; 921, welding head; 922, flow dividing plate; 923, first liquid discharge hole; 924, arc groove; 925, second liquid discharge hole; 926, arc plate; 10, protective box; 101, protective cover plate; 102, second bearing seat; 103, fixed part. DETAILED DESCRIPTION

[0041] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all embodiments.

[0042] Reference Figures 1-16 The double screw waste modification device comprises a double screw waste modification mechanism 400, the double screw waste modification mechanism 400 is provided with a waste mixing box 1, the waste mixing box 1 is provided with a double screw assembly 7 inside, one side of the upper surface of the waste mixing box 1 is provided with a discharge port 3, one side of the waste mixing box 1 is connected and provided with a double shaft driving assembly 2, the double shaft driving assembly 2 is connected and drives the double screw assembly 7, a plurality of driving mechanisms 4 are arranged uniformly along the longitudinal direction on the upper surface of the waste mixing box 1, the driving mechanisms 4 are both connected and provided with a bottom waste back scraping mechanism 8, the other side of the bottom waste back scraping mechanism 8 away from the driving mechanisms 4 is connected and provided with a chain transmission mechanism 5, the chain transmission mechanism 5 is provided with a protective box 10 outside, and the double screw assembly 7 plays a role of extruding and transmitting liquid waste.

[0043] The bottom waste back scraping mechanism 8 comprises a third bevel gear 81 which is assembled and connected with the driving mechanism 4, a connecting shaft 82 which is arranged at the middle part of the bottom end surface of the third bevel gear 81, a third bearing seat 84 which is arranged at the middle part of the connecting shaft 82 and is installed on the upper surface of the waste mixing box 1, and a back scraping frame 83 which is fixedly connected to the bottom end of the shaft body of the connecting shaft 82 and is symmetrically arranged at the two sides of the double-screw assembly 7. A plurality of arc walls 831 are arranged on the back scraping frame 83, a guide groove 832 is formed in one side of the arc wall 831, the inner wall of the guide groove 832 is of a certain inclined arc, a limiting protruding plate 833 is fixedly connected above the guide groove 832, and as the back scraping frame 83 rotates, the guide groove 832 will generate an upward flow direction, so as to drive the liquid waste originally deposited at the bottom, and under the action of the arc wall 831, some of the liquid waste driven can re-enter the fluid extruded and conveyed by the double-screw assembly 7, so that the liquid waste with solid impurities deposited at the bottom can be effectively prevented.

[0044] In addition, the driving mechanism 4 comprises a double-shaft motor 41, first bevel gears 42 which are arranged at the shaft end heads of the output ends at the two sides of the double-shaft motor 41, a third bevel gear 81 which is arranged below the first bevel gear 42, and a dustproof frame 6 which is arranged at the connection part of the first bevel gear 42 and the third bevel gear 81.

[0045] The dustproof frame 6 comprises a supporting rod 61 which is installed on the upper surface of the waste mixing box 1, and a dust cover 62 which is arranged at the top of the rod body of the supporting rod 61 and covers the connection part of the first bevel gear 42 and the third bevel gear 81, so that the dust cover 62 can effectively prevent dust.

[0046] In addition, the chain transmission mechanism 5 comprises a first transmission assembly 51 which is assembled and connected with the third bevel gear 81, a second transmission assembly 53 which is arranged at one side of the first transmission assembly 51, and a waste stirring mechanism 9 which is connected at one side of the second transmission assembly 53. The first transmission assembly 51 comprises a first transmission shaft 511, a second bevel gear 512 which is arranged at one end of the shaft body of the first transmission shaft 511, and a first sprocket 513 which is installed at the other end of the shaft body of the first transmission shaft 511 away from the second bevel gear 512. The second bevel gear 512 is arranged above the third bevel gear 81 and is engaged with the third bevel gear 81 to rotate in cooperation.

[0047] The second transmission assembly 53 comprises a second transmission shaft 531, a first bearing seat 532 is arranged in the middle of the second transmission shaft 531, a waste stirring mechanism 9 is connected to one end of the shaft body of the second transmission shaft 531, a second sprocket 533 is connected to the other end of the shaft body of the second transmission shaft 531 away from the waste stirring mechanism 9, the second sprocket 533 is sleeved with a chain 52 outside the first sprocket 513, and the chain 52 rotates the first sprocket 513 and the second sprocket 533 on both sides, so that the second transmission assembly 53 can be driven to rotate when the first transmission assembly 51 rotates, the waste stirring mechanism 9 on one side can work, and linkage is realized.

[0048] In addition, the waste stirring mechanism 9 comprises a connecting head 91, the connecting head 91 is assembled and connected to one end of the shaft body of the second transmission shaft 531, a plurality of stirring plates 92 are uniformly welded on the side wall of the connecting head 91, a welding head 921 is arranged on one side of the plate body of the stirring plate 92, the upper and lower ends of the welding head 921 are in arc shape, an arc groove 924 is formed in the upper surface of the stirring plate 92, a plurality of flow dividing plates 922 are arranged in a horizontal direction on the bottom wall in the groove of the arc groove 924, the flow dividing plates 922 can cut the liquid waste, so as to reduce the resistance when the stirring plate 92 rotates, and also play a certain stirring role.

[0049] The arc groove 924 is provided with a cavity on one side, the plate body of the stirring plate 92 is provided with an arc plate 926 on the upper surface of the cavity, the arc plate 926 is inclined at a certain angle towards the downward arc groove 924, and a plurality of first liquid discharge holes 923 are uniformly formed in the upper surface of the cavity of the stirring plate 92, and a plurality of second liquid discharge holes 925 are uniformly formed in the side wall of the stirring plate 92 on one side of the first liquid discharge hole 923. The liquid waste is discharged through the first liquid discharge hole 923 and the second liquid discharge hole 925, and most of the solid impurities that cannot pass through are blocked by the first liquid discharge hole 923 and the second liquid discharge hole 925, so as to be left in the cavity, thereby playing a role of filtering solid impurities.

[0050] The waste mixing box 1 is provided with a plurality of mounting holes 11 uniformly formed in the side walls on both sides of the box body, the first bearing seat 532 is mounted in the mounting hole 11, a plurality of rotating boxes 12 are arranged on the side walls on both sides of the box body of the waste mixing box 1, the bottom waste back scraping mechanism 8 is arranged to rotate in the inner cavity of the rotating box 12, the protective cover 14 is mounted above each waste stirring mechanism 9 on the side edges on both sides of the upper surface of the waste mixing box 1, the discharge port 13 is arranged on the side of the waste mixing box 1 away from the double-shaft driving assembly 2, and the protective cover 14 is used to prevent the waste stirring mechanism 9 from throwing out the waste.

[0051] In addition, the protective box 10 is arranged outside the chain transmission mechanism 5, the protective box 10 is installed at the surface of the side wall of the waste mixing box 1, a protective cover plate 101 is installed on one side of the box body of the protective box 10, a second bearing seat 102 is arranged on the protective cover plate 101, a first transmission shaft 511 is rotatably arranged in the inner ring of the second bearing seat 102, and the protective cover plate 101 is fixedly installed on one side of the protective box 10 in cooperation with a fixed component 103.

[0052] In the waste treatment, some waste plastics can be modified to improve the quality of the plastics and facilitate subsequent waste recycling. The waste plastics are first poured into the waste mixing and stirring tank 100, the waste mixing and stirring tank 100 stirs the waste with other mixing agents and performs preliminary heating. The stirred waste is discharged from the waste mixing and stirring tank 100 and falls on the conveyor belt of the waste conveyor 200. The waste conveyor 200 conveys the waste to the top, and then the waste falls into the single-screw mixing and heating machine 300. The single-screw mixing and heating machine 300 heats and dissolves the conveyed waste and conveys the waste through the internal single screw. In this process, most of the waste is heated and dissolved into a liquid state, and the single-screw mixing and heating machine 300 can also isolate the undissolved large impurities in the waste.

[0053] The liquid waste discharged from the single-screw mixing and heating machine 300 is discharged from the discharge pipe 301 and modified agents are added at the same time. The waste discharged from the discharge pipe 301 in a liquid state enters the double-screw waste modification mechanism 400. The waste falling from the discharge pipe 301 first enters the discharge port 3 and then flows into the interior of the waste mixing box 1. At this time, the double-screw assembly 7 in the waste mixing box 1 rotates through the double-shaft driving assembly 2. Because the viscosity of most liquid plastics is high, the two screws are engaged to extrude the waste fluid from the discharge port 3 to the discharge port 13 under the synergistic action of the double-screw assembly 7. In this process, the double-screw engagement can further extrude and mix the waste, so as to better mix and stir the waste with the modified agents, similar to the effect of mixing flour. The double-screw assembly 7 is prior art, and its principle and structure are consistent with those of the double-screw extruder in the prior art, which is well known to those skilled in the art of double-screw extrusion.

[0054] But some waste fluid with solid impurities, will be driven by the precipitation of solid impurities in the bottom of the waste mixing box 1, because although the single screw mixing heating machine 300 can filter out most of the undissolved solid impurities, but there are still some small size of solid waste can not be filtered out and follow the liquid waste into the double screw waste modification mechanism 400, and most of the solid impurities in the double screw assembly 7 extrusion transmission, will be due to its mass is heavy, so that some solid impurities will be with a part of the liquid waste precipitation in the bottom of the waste mixing box 1, and these precipitates are not easy to be driven, at this time need to start the driving mechanism 4 to deal with the bottom of the precipitate.

[0055] First, the first bevel gear 42 on the output shaft of both sides of the double shaft motor 41 is driven to rotate counterclockwise under the drive of the double shaft motor 41, so as to drive the bottom waste back scraping mechanism 8 on both sides to work.

[0056] After the first bevel gear 42 rotates counterclockwise, the third bevel gear 81 meshing with it will rotate counterclockwise synchronously under the action of the first bevel gear 42, and the connecting shaft 82 connected with the bottom of the third bevel gear 81 cooperates with the support of the third bearing seat 84, so that the connecting shaft 82 rotates counterclockwise, and the back scraping frame 83 rotates counterclockwise in the rotating box 12 to scrape the most of the solid impurities precipitated on the bottom wall of the waste mixing box 1.

[0057] The third bearing seat 84 is arranged at the upper surface of the waste mixing box 1.

[0058] First, the guide groove 832 of the back scraping frame 83 is of a certain arc, similar to a fan blade, when the back scraping frame 83 rotates counterclockwise, the back scraping frame 83 will generate turbulence when rotating, and the turbulence will be opposite to the flow direction when the double screw assembly 7 rotates, so as to stir the liquid waste precipitated at the bottom, and under the limitation of the limiting lug 833, the liquid waste originally precipitated at the bottom can enter the guide groove 832, and with the rotation of the back scraping frame 83, the guide groove 832 will generate upward flow, so as to drive the liquid waste originally precipitated at the bottom, and under the action of the arc wall 831, some of the liquid waste driven can reenter the fluid extruded and conveyed by the double screw assembly 7, so as to effectively prevent a large amount of liquid waste with solid impurities from precipitating at the bottom.

[0059] And when these precipitates at the bottom with solid impurities are scraped, the waste stirring mechanism 9 on one side can also play a role in assisting the waste to be sent to a high place under the drive of the chain transmission mechanism 5, and can also play a role in filtering solid impurities.

[0060] First, under the clockwise rotation of the third bevel gear 81, the second bevel gear 512 on the other side will be synchronized to rotate counterclockwise, thereby cooperating with the second bearing seat 102 on the protective cover plate 101, realizing the counterclockwise rotation of the first transmission shaft 511 driving the first sprocket 513, and the chain 52 sleeved on the first sprocket 513, performing counterclockwise transmission, driving the second sprocket 533 on the other side to rotate counterclockwise, so that the second transmission shaft 531 connected thereto and arranged on the first bearing seat 532 can rotate counterclockwise, thereby driving the waste stirring mechanism 9 on one side to work, and the first bearing seat 532 is installed at the mounting hole 11.

[0061] The four stirring plates 92 welded on the connecting head 91 rotate counterclockwise on one side of the back scraping frame 83. When rotating counterclockwise, the stirring plate 92 will contact the liquid waste stirred up by the back scraping frame 83 on one side. The liquid waste enters the circular arc groove 924. The circular arc surface of the circular arc groove 924 guides the liquid waste hit by the stirring plate 92 when rotating into the inner cavity on the other side with the first liquid discharge hole 923, and the flow dividing plate 922 arranged can cut the liquid waste, thereby reducing the resistance when the stirring plate 92 rotates, and also playing a certain stirring role.

[0062] Under the limitation of the circular arc plate 926, part of the liquid waste will be left in the cavity, and under the action of the centrifugal force of the stirring plate 92, the liquid waste will be thrown out through the first liquid discharge hole 923 and the second liquid discharge hole 925, and most of the solid impurities that cannot pass through will be blocked by the first liquid discharge hole 923 and the second liquid discharge hole 925, thereby remaining in the cavity. In this way, it plays a role in filtering solid impurities, and can filter out most of the solid impurities deposited at the bottom, so that the protection personnel can open the protective cover 14 to clean the impurities in the stirring plate 92 regularly.

[0063] The protective box 10 mainly plays an effective dustproof role. The fixed part 103 cooperatively arranged with the protective cover plate 101 is fixedly installed on one side of the protective box 10, and the dust cover 62 of the dustproof frame 6 is arranged at the bevel gear connection of the two sides of the driving mechanism 4, which is used to play a dustproof role.

[0064] Moreover, the bottom waste back scraping mechanism 8 and the waste stirring mechanism 9 are arranged in groups at a certain distance, which can ensure that most of the liquid waste deposited on the bottom wall of the inner cavity of the waste mixing box 1 can be stirred up.

[0065] The liquid waste extruded by the double screw assembly 7 is discharged from the discharge port 13. The waste discharged from the discharge port 13 will fall into the liquid cooling box 500 below, and the liquid waste mixed with the modified medicament with high temperature is cooled.

[0066] In the application, when the waste plastic is treated, the liquid waste after adding the modifying agent is treated by the double screw waste modifying mechanism 400, and is transmitted by the double screw assembly 7, and in the process, the double screw assembly 7 can also extrude and cut the liquid waste, so that it is better mixed with the modifying agent, and the multiple bottom waste back scraping mechanisms 8 arranged on both sides can scrape and stir the liquid waste deposited on the bottom and not transmitted by the double screw assembly 7, so that it is stirred and agitated to be agitated by the double screw assembly 7 and then continuously transmitted out, effectively solving the problem that the liquid waste deposited on the bottom and containing a large amount of impurities cannot be well mixed and transmitted out.

[0067] And the waste stirring mechanism 9 on one side stirs the liquid waste deposited on the bottom and containing solid impurities in the counterclockwise stirring mode, and the stirring plate 92 can also play a certain filtering role to filter out part of the solid impurities, and further stirs the waste deposited on the bottom and containing a large amount of solid impurities to the upper layer and is extruded and transmitted by the double screw assembly 7.

[0068] The above is only the preferred specific embodiment of the application, but the protection scope of the application is not limited to this, any person skilled in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the application within the technical range disclosed by the application, which should be covered in the protection scope of the application.

Claims

1. A twin-screw waste modification device, comprising a twin-screw waste modification mechanism (400), wherein the twin-screw waste modification mechanism (400) is provided with a waste mixing box (1), a twin-screw assembly (7) is provided inside the waste mixing box (1), a discharge port (3) is provided on one side of the upper surface of the waste mixing box (1), and a dual-shaft drive assembly (2) is connected to one side of the waste mixing box (1), the dual-shaft drive assembly (2) is connected to and drives the twin-screw assembly (7), characterized in that, Multiple drive mechanisms (4) are evenly arranged longitudinally on the upper surface of the waste mixing box (1). Bottom waste scraping mechanism (8) is assembled and connected on both sides of the drive mechanism (4). A chain drive mechanism (5) is connected to the other side of the bottom waste scraping mechanism (8) away from the drive mechanism (4). A protective box (10) is provided outside the chain drive mechanism (5). The bottom waste scraping mechanism (8) includes a third bevel gear (81), which is assembled and connected to the drive mechanism (4). A connecting shaft (82) is connected to the middle of the bottom surface of the third bevel gear (81), and a third bearing seat (84) is provided in the middle of the connecting shaft (82). The third bearing seat (84) is installed on the upper surface of the waste mixing box (1). A scraping frame (83) is fixedly connected to the bottom of the shaft of the connecting shaft (82). The scraping frames (83) are symmetrically arranged on both sides of the twin screw assembly (7). The scraper (83) is provided with multiple arc walls (831), and a guide groove (832) is provided on one side of the arc wall (831). The inner wall of the guide groove (832) has a certain inclined arc, and a limiting protrusion (833) is fixedly connected above the guide groove (832). The chain drive mechanism (5) includes a first drive assembly (51), which is assembled and connected to a third bevel gear (81). A second drive assembly (53) is provided on one side of the first drive assembly (51), and a waste agitator (9) is connected to one side of the second drive assembly (53). The first transmission assembly (51) includes a first transmission shaft (511), one end of which is connected to a second bevel gear (512), which is positioned above a third bevel gear (81) and meshes with the third bevel gear (81). A first sprocket (513) is installed at the other end of the first transmission shaft (511) away from the second bevel gear (512). The second transmission assembly (53) includes a second transmission shaft (531), a first bearing seat (532) is provided in the middle of the second transmission shaft (531), a waste agitation mechanism (9) is connected to one end of the shaft body of the second transmission shaft (531), and a second sprocket (533) is connected to the other end of the shaft body of the second transmission shaft (531) away from the waste agitation mechanism (9). A chain (52) is fitted around the second sprocket (533) and the first sprocket (513); The waste agitation mechanism (9) includes a connector (91), which is assembled to one end of the shaft of the second drive shaft (531). Multiple agitation plates (92) are uniformly welded on the side wall of the connector (91). The stirring plate (92) has a welding head (921) on one side of the plate body. The upper and lower surfaces of the welding head (921) are arc-shaped. An arc groove (924) is opened on the upper surface of the stirring plate (92). Multiple diversion plates (922) are arranged horizontally and evenly on the bottom wall of the arc groove (924) of the stirring plate (92). A cavity is provided on one side of the arc groove (924). An arc plate (926) is provided on the upper surface of the stirring plate (92) in this cavity. The arc plate (926) is inclined at a certain angle towards the arc groove (924) below. A plurality of first drain holes (923) are uniformly provided on the upper surface of the stirring plate (92) in this cavity. A plurality of second drain holes (925) are uniformly provided on the side wall of the stirring plate (92) on one side of the first drain holes (923). The waste mixing box (1) has multiple mounting holes (11) evenly opened on both sides of the box body. The first bearing seat (532) is installed at the mounting hole (11). Multiple rotating boxes (12) are set on both sides of the side wall of the waste mixing box (1). The bottom waste scraping mechanism (8) is set in the inner cavity of the rotating box (12) and rotates.

2. The twin-screw waste modification equipment according to claim 1, characterized in that, The drive mechanism (4) includes a dual-axis motor (41). A first bevel gear (42) is provided at the shaft end of the output end on both sides of the dual-axis motor (41). A third bevel gear (81) is provided below the first bevel gear (42). The first bevel gear (42) meshes with the third bevel gear (81). A dustproof frame (6) is provided at the connection between the first bevel gear (42) and the third bevel gear (81).

3. The twin-screw waste modification equipment according to claim 2, characterized in that, The dustproof frame (6) includes a support rod (61), which is installed on the upper surface of the waste mixing box (1). A dust cover (62) is provided on the top of the support rod (61), and the dust cover (62) covers the connection between the first bevel gear (42) and the third bevel gear (81).

4. The twin-screw waste modification equipment according to claim 1, characterized in that, The waste mixing box (1) is equipped with protective covers (14) on both sides of the upper surface and above each waste agitation mechanism (9). The waste mixing box (1) is provided with a discharge port (13) on the other side away from the dual-shaft drive assembly (2) connected to it.

5. The twin-screw waste modification equipment according to claim 1, characterized in that, The protective box (10) is installed on the outside of the chain drive mechanism (5). The protective box (10) is installed on the side wall surfaces of the waste mixing box (1). A protective cover plate (101) is installed on one side of the protective box (10). A second bearing seat (102) is provided on the protective cover plate (101). A first drive shaft (511) is rotatably provided on the inner ring of the second bearing seat (102).

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