Hazardous waste incineration feeding system

Abstract

The invention relates to the technical field of hazardous waste treatment equipment, and discloses a hazardous waste incineration feeding system which comprises a feeding pipeline, a feeding hopper is arranged in the middle of the feeding pipeline, a scattering device is arranged in the feeding hopper and comprises at least two grinding rollers arranged side by side, and all the grinding rollers are driven by a transmission assembly; the transmission assembly comprises a main transmission shaft which is coaxially connected with at least one grinding roller and further comprises at least one first auxiliary transmission shaft which is coaxially connected with the remaining grinding rollers, a main gear is coaxially arranged on the main transmission shaft, and a displacement gear meshed with the main gear is coaxially arranged on the first auxiliary transmission shaft. A plurality of protrusions are distributed in the circumferential direction of the displacement gear and further distributed in the axial direction of the displacement gear, and the protrusions correspond to tooth grooves of the displacement gear in a one-to-one mode. The hazardous waste incineration feeding system disclosed by the invention can generate similar'rubbing 'interference operation on wastes, so that hazardous wastes which are not fully scattered are further rubbed to be dispersed.

Description

Technical Field

[0001] The invention relates to the technical field of hazardous waste treatment equipment, and in particular to a hazardous waste incineration feeding system. Background Art

[0002] Hazardous waste (hereinafter referred to as "hazardous waste") needs to be harmlessly treated through high-temperature incineration due to its toxicity, corrosiveness, flammability and other characteristics. The rotary kiln incinerator has become one of the mainstream technologies for hazardous waste treatment due to its strong adaptability and wide treatment range. However, hazardous wastes are complex in types and have significant differences in physical state. Among them, muddy hazardous wastes (such as heavy metal sludge, chemical waste residues, etc.) have certain viscosity and poor fluidity, and accumulate to form lumps. When such lumps are directly incinerated in the rotary kiln, due to the low internal heat transfer efficiency and insufficient oxygen contact area, incomplete combustion is prone to occur, resulting in the generation of harmful gases such as dioxins, waste of residual calorific value, and even causing problems such as coking in the kiln and equipment corrosion.

[0003] In order to improve the incineration efficiency of hazardous waste, the feeding operation of the feeding system is crucial. Traditional feeding systems usually use a roller plus a lever arm to break up the materials. This method drives the roller to rotate through a motor, driving the circumferentially distributed rigid lever arms to hit and break the falling materials. However, the applicant has found in practice that this type of structure has the defect of insufficient breaking up, mainly because some lumps with high viscosity are easy to re-aggregate after being separated by the lever arm. Summary of the invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, one object of the present invention is to provide a hazardous waste incineration feeding system.

[0005] The hazardous waste incineration feeding system comprises a feeding pipe with one end extending into the incinerator cavity and connected to the incinerator cavity, a pushing plate which can be reciprocated along the axial direction of the feeding pipe is arranged at the other end of the feeding pipe, and a feeding hopper is arranged in the middle of the feeding pipe; Generally, the hazardous waste is lifted into the feed hopper by an automatic feeder, and then enters the feed pipe through the feed hopper, and then the push plate pushes the hazardous waste into the incinerator cavity for incineration; In order to prevent the accumulation of hazardous waste, a scattering device is provided in the feed hopper, and the scattering device includes at least two rollers arranged in parallel, and all the rollers are driven by a transmission assembly; The present application is different from the conventional solution in that the transmission assembly includes a main transmission shaft coaxially connected to at least one roller, and also includes a first secondary transmission shaft coaxially connected to the remaining rollers, a main gear is coaxially arranged on the main transmission shaft, and a displacement gear meshing with the main gear is coaxially arranged on the first secondary transmission shaft; The main transmission shaft is driven by a power source such as a motor to rotate, driving the roller connected to it to rotate. The interference between the main gear and the displacement gear is used to drive the displacement gear to rotate and produce linear displacement at the same time. The transmission operation of the first secondary transmission shaft drives the roller connected to it to rotate and produce linear displacement at the same time, and a "kneading" action is generated between the roller that only rotates, thereby further kneading the hazardous waste that is not fully broken up to disperse it and improve the completeness of combustion.

[0006] The displacement gear is specifically configured as follows: a plurality of protrusions are distributed in the circumferential direction of the displacement gear, and a plurality of protrusions are also distributed along the axial direction of the displacement gear, that is, the protrusions are distributed in a spiral shape on the displacement gear, and correspond one-to-one with the tooth grooves of the displacement gear, and are arranged on the side walls of the tooth grooves; In this way, the main gear drives the displacement gear to rotate, so that when a certain tooth on the main gear corresponds to a certain protrusion, the tooth interferes with the protrusion. Under the interference, the main gear and the displacement gear are relatively displaced, that is, the displacement gear rotates and simultaneously undergoes a linear displacement relative to the main gear. Under the continuous meshing action of the main gear and the displacement gear, the displacement gear can produce continuous linear displacement while rotating.

[0007] In some examples of the present invention, the protrusions are divided into two groups, one group of protrusions extending from one end to the other end of the displacement gear, and the other group of protrusions extending in the opposite direction; The purpose of such a setting is that when the teeth interfere with one set of protrusions, the displacement gear can produce a linear displacement in a certain direction while rotating, and when the teeth interfere with the other set of protrusions, the displacement gear can produce a linear displacement in the opposite direction while rotating. When the interference operation between the teeth and the protrusions completes a cycle, the displacement gear produces a linear reciprocating cycle, thereby driving continuous kneading operations between the rollers.

[0008] In some examples of the present invention, a stopper plate is provided on the displacement gear in one-to-one correspondence with the protrusions and is fixed in the tooth groove; The purpose of such a setting is that when the main gear and the displacement gear generate relative displacement due to the interference between the main gear and the protrusion, the stop plate forms a stop effect on the corresponding teeth on the main gear, so that the displacement distance of the displacement gear each time is controllable.

[0009] In some examples of the present invention, the direction in which the protrusion points to the stopper plate is the feeding direction of the main gear relative to the displacement gear; The purpose of such arrangement is that the interference direction of the protrusion on the main gear needs to make the displacement gear form a reciprocating motion, so that when the feeding direction is different, the orientation between the protrusion and the stop plate is also different.

[0010] In some examples of the present invention, the main gear is a double gear, and when meshing with the displacement gear, the corresponding stopper is located between the gaps of the double gear; The purpose of such arrangement is to control the relative feed amount between the main gear and the displacement gear through the mutual blocking action between the double gears and the blocking plate.

[0011] In some examples of the present invention, the gap between the protrusion and the stop plate can accommodate one of the gears in the double gears; The purpose of such a setting is that after the teeth of the main gear are interfered by the protrusion and relatively displaced with the displacement gear, a stable meshing state is required between the main gear and the displacement gear, that is, after the displacement is completed, the meshing action needs to be stable to ensure subsequent operations.

[0012] In some examples of the present invention, the scattering device further includes at least two rollers arranged in parallel with the grinding roller, the transmission assembly further includes a second secondary transmission shaft coaxial with and connected to at least one of the rollers, and a first secondary gear meshing with the main gear is coaxially arranged on the second secondary transmission shaft; The purpose of such arrangement is to set the roller to break up the hazardous waste before kneading it, and the first secondary gear rotates by meshing with the main gear, and then the roller rotates through the transmission operation of the second secondary transmission shaft.

[0013] In some examples of the present invention, the transmission assembly further includes a third secondary transmission shaft coaxially connected to the remaining rollers, and a second secondary gear respectively meshing with the first secondary gear and the displacement gear is coaxially arranged on the third secondary transmission shaft.

[0014] In some examples of the present invention, a gearbox is provided on one side of the feed hopper, and the main gear, displacement gear, first sub-gear and second sub-gear are all placed in the gearbox, the main drive shaft, first sub-drive shaft, second sub-drive shaft and third sub-drive shaft are all arranged in the gearbox and extend into the feed hopper, and are respectively rotatably connected to the gearbox and the feed hopper, and one end of the main drive shaft also extends outside the gearbox for connecting to a power source.

[0015] In some examples of the present invention, the first secondary transmission shaft is connected to the gear box and the feed hopper via a sliding pair, which includes a cylindrical bracket and a freely rotatable ball embedded in the cylindrical bracket, and also includes a shell connected to the cylindrical bracket.

[0016] In some examples of the present invention, a fire-blocking door is provided in the feed pipe at a position between the push plate and the incinerator chamber, and the fire-blocking door can be displaced along the radial direction of the feed pipe; The purpose of this arrangement is to close the fire-blocking door after the feeding is completed to prevent the flame in the incinerator cavity from entering the feeding pipe.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, a brief introduction is given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 It is a front view of a hazardous waste incineration feeding system in an embodiment of the present invention; Figure 2 A top view of a hazardous waste incineration feeding system in an embodiment of the present invention; Figure 3 In the embodiment of the present invention, Figure 2 Sectional view at AA; Figure 4 In the embodiment of the present invention, Figure 2 Cross-sectional view at BB; Figure 5 In the embodiment of the present invention, the sliding pair Figure 4 Detailed image in ; Figure 6 is a three-dimensional diagram of a gear set in an embodiment of the present invention; Figure 7 In the embodiment of the present invention, Figure 6 Detailed view at A; Figure 8 In the embodiment of the present invention, Figure 6 Detail at B.

[0020] Description of reference numerals: Feed pipe 1; Push plate 2; Feed hopper 3; Hydraulic station 4; The first hydraulic cylinder 5; Automatic feeding machine 6; The breaking device 7, the roller 7-1, the first roller 7-1-1, the second roller 7-1-2, the point convex 7-1-3, the roller 7-2, the first roller 7-2-1, the second roller 7-2-2, the arm 7-2-3; Transmission assembly 8, main transmission shaft 8-1, first sub-transmission shaft 8-2, main gear 8-3, teeth of main gear 8-3-1, displacement gear 8-4, protrusion 8-4-1, tooth groove 8-4-2 of displacement gear, top teeth 8-4-3, bottom teeth 8-4-4, screw 8-4-5, stop plate 8-4-6, second sub-transmission shaft 8-5, first sub-gear 8-6, third sub-transmission shaft 8-7, second sub-gear 8-8, first bearing 8-9, first bearing cover 8-10, second bearing 8-11, second bearing cover 8-12, third bearing 8-13, third bearing cover 8-14, sliding pair 8-15, cylindrical bracket 8-15-1, ball 8-15-2, housing 8-15-3, sliding pair end cover 8-16; Gear box 9; Motor 10; Fire door 11; The second hydraulic cylinder 12 . DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0023] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0025] Reference below Figure 1 to Figure 8 The hazardous waste incineration feeding system shown in the figure describes an embodiment of the present invention.

[0026] Please see attached Figure 1 , is a front view of a hazardous waste incineration feeding system, the feeding system comprises a feeding pipe 1 with one end extending into the incinerator cavity G and connected to the incinerator cavity G, the other end of the feeding pipe 1 is provided with a push plate 2 (shown by a dotted line) that can move back and forth along the axial direction of the feeding pipe 1, and a feeding hopper 3 is provided in the middle of the feeding pipe 1; Please continue to see the attached Figure 1 A hydraulic station 4 is arranged on one side of the feed pipe 1, and the push plate 2 is powered by a first hydraulic cylinder 5 to realize reciprocating motion. The power of the first hydraulic cylinder 5 comes from the hydraulic station 4, and an automatic loader 6 is arranged on the upper part of the feed hopper 3, and the loading operation is realized by the automatic loader 6.

[0027] Please see attached Figure 2 ~Attached Figure 4 , attached Figure 2 This is a top view of the hazardous waste incineration feeding system. Figure 3 For attachment Figure 2 Sectional view at AA, attached Figure 4 For attachment Figure 2 In the cross-sectional view at BB, a scattering device 7 is provided in the feed hopper 3, and the scattering device 7 has two rollers 7-1 arranged in parallel, and all the rollers 7-1 are driven by a transmission assembly 8; Please continue to see the attached Figure 3 ~Attached Figure 4The grinding roller 7-1 includes a first grinding roller 7-1-1 and a second grinding roller 7-1-2. The transmission assembly 8 includes a main transmission shaft 8-1 which is coaxial with and connected to the first grinding roller 7-1-1, and also includes a first secondary transmission shaft 8-2 which is coaxial with and connected to the second grinding roller 7-1-2. A main gear 8-3 is coaxially arranged on the main transmission shaft 8-1, and a displacement gear 8-4 which meshes with the main gear 8-3 is coaxially arranged on the first secondary transmission shaft 8-2. The main gear 8-3 can drive the displacement gear 8-4 to rotate and displace at the same time, thereby driving a similar "kneading" operation between the first grinding roller 7-1-1 and the second grinding roller 7-1-2 to achieve further crushing of hazardous waste.

[0028] Please continue to see the attached Figure 3 ~Attached Figure 4 The outer surface of the roller 7-1 is formed with protrusions 7-1-3. When the first roller 7-1-1 and the second roller 7-1-2 are kneading each other, the protrusions 7-1-3 are used to assist the kneading operation and improve the crushing effect.

[0029] Please continue to see the attached Figure 3 ~Attached Figure 4 The dispersing device 7 also includes two rollers 7-2 arranged parallel to the grinding roller 7-1 and located above the grinding roller 7-1. A plurality of arms 7-2-3 are arranged on the rollers 7-2. When the rollers 7-2 rotate, the arms 7-2-3 can act on the hazardous waste to disperse it.

[0030] Please continue to see the attached Figure 3 ~Attached Figure 4 The roller 7-2 includes a first roller 7-2-1 and a second roller 7-2-2; the transmission assembly 8 also includes a second secondary transmission shaft 8-5 coaxially connected to the first roller 7-2-1, and a first secondary gear 8-6 meshing with the main gear 8-3 is coaxially arranged on the second secondary transmission shaft 8-5; the transmission assembly 8 also includes a third secondary transmission shaft 8-7 coaxially connected to the second roller 7-2-2, and a second secondary gear 8-8 meshing with the first secondary gear 8-6 and the displacement gear 8-4 is coaxially arranged on the third secondary transmission shaft 8-7; The main gear 8-3 can drive the first sub-gear 8-6 and the second sub-gear 8-8 to rotate through the meshing action, thereby driving the roller 7-2 to rotate through the transmission operation of the second sub-transmission shaft 8-5 and the third sub-transmission shaft 8-7. The hazardous waste can be broken up by the rotational kinetic energy, and because the second sub-gear 8-8 is meshed with the displacement gear 8-4, it can also assist the operation of the main gear 8-3 and drive the displacement gear 8-4 to shift. The specific assistance will be introduced below.

[0031] Please continue to see the attached Figure 3 ~Attached Figure 4A gear box 9 is arranged on one side of the feed hopper 3. The main gear 8-3, the displacement gear 8-4, the first sub-gear 8-6 and the second sub-gear 8-8 form a gear set, and the gear set is placed in the gear box 9. The main transmission shaft 8-1, the first sub-transmission shaft 8-2, the second sub-transmission shaft 8-5 and the third sub-transmission shaft 8-7 are all arranged in the gear box 9 and extend into the feed hopper 3. They are rotatably connected with the gear box 9 and the feed hopper 3 respectively, and one end of the main transmission shaft 8-1 also extends outside the gear box 9.

[0032] Please continue to see the attached Figure 3 ~Attached Figure 4 The main transmission shaft 8-1 is rotationally connected to the gear box 9 and the feed hopper 3 through a plurality of first bearings 8-9, and in order to prevent waste leakage or for safety considerations, the first bearings 8-9 at the ends of the gear box 9 and the feed hopper 3 are closed by the first bearing covers 8-10.

[0033] Please continue to see the attached Figure 1 ~Attached Figure 2 One end of the main transmission shaft 8-1 extending outside the gear box 9 is connected to the motor 10 and driven by the motor 10 to rotate; In other embodiments, the rotation of the main transmission shaft 8 - 1 may also utilize the power of the hydraulic station 4 .

[0034] Please continue to see the attached Figure 3 ~Attached Figure 4 The second auxiliary transmission shaft 8-5 is rotationally connected to the gear box 9 and the feed hopper 3 through a plurality of second bearings 8-11, and the second bearings 8-11 at the ends of the gear box 9 and the feed hopper 3 are closed by second bearing covers 8-12.

[0035] Please continue to see the attached Figure 3 ~Attached Figure 4 The third auxiliary transmission shaft 8-7 is rotationally connected to the gear box 9 and the feed hopper 3 through a plurality of third bearings 8-13. The third bearings 8-13 at the ends of the gear box 9 and the feed hopper 3 are closed by third bearing covers 8-14.

[0036] Please continue to see the attached Figure 4 , the first secondary transmission shaft 8-2 is connected to the gear box 9 and the feed hopper 3 through a sliding pair 8-15; Please see attached Figure 5 , for sliding pair 8-15 Figure 4 In the detailed drawing, the sliding pair 8-15 includes a cylindrical bracket 8-15-1 and a freely rotatable ball 8-15-2 embedded in the cylindrical bracket 8-15-1, and also includes a housing 8-15-3 connected to the cylindrical bracket 8-15-1; Specifically, the first auxiliary transmission shaft 8-2 passes through the cylindrical bracket 8-15-1 and contacts the ball 8-15-2. The outer shell 8-15-3 is fixed in the sliding auxiliary end cover 8-16, and the sliding auxiliary end cover 8-16 is fixed to the gear box 9 and the end of the feed hopper 3 by welding, screw connection, etc.

[0037] Please see attached Figure 6 , is a three-dimensional diagram of the gear set, in which the main gear 8-3 is meshed with the displacement gear 8-4, the first sub-gear 8-6 is meshed with the main gear 8-3 and the second sub-gear 8-8, and the second sub-gear 8-8 is also meshed with the displacement gear 8-4; since the displacement gear 8-4 will make relative motion, the displacement gear 8-4 is longer than the main gear 8-3 and the second sub-gear 8-8, and the first sub-gear 8-6 is also longer in order to achieve meshing with the main gear 8-3 and the second sub-gear 8-8.

[0038] Please see attached Figure 6 , a plurality of protrusions 8-4-1 are distributed in the circumferential direction of the displacement gear 8-4, and a plurality of protrusions 8-4-1 are also distributed along the axial direction of the displacement gear 8-4, that is, the protrusions 8-4-1 are distributed in a spiral manner in the circumferential direction of the displacement gear 8-4, corresponding one by one to the tooth grooves 8-4-2 of the displacement gear, and are arranged on the side walls of the tooth grooves; For details, please see the attached Figure 7 ~Attached Figure 8 , attached Figure 7 For attachment Figure 6 Detailed view at A, attached Figure 8 For attachment Figure 6 In the detail diagram at B, the teeth of the displacement gear 8-4 are composed of top teeth 8-4-3 and bottom teeth 8-4-4. Both the top teeth 8-4-3 and the bottom teeth 8-4-4 are strips of the same length as the displacement gear 8-4. The structure formed by the top teeth 8-4-3 and the bottom teeth 8-4-4 is trapezoidal in cross section. The two are connected to the displacement gear 8-4 by screws 8-4-5. The protrusion 8-4-1 is a sphere embedded between the top teeth 8-4-3 and the bottom teeth 8-4-4. About one-third of the sphere is exposed between the two teeth, that is, formed in The tooth groove 8-4-2 of the displacement gear is located between the tooth grooves 8-4-2 and on the tooth groove walls. The cross-section of the tooth groove 8-4-2 of the displacement gear is an inverted trapezoid. Correspondingly, the cross-section of the tooth 8-3-1 of the main gear meshing therewith is trapezoidal. Therefore, when the tooth 8-3-1 of the main gear meshes with the tooth groove 8-4-2 of the displacement gear and meets the corresponding protrusion 8-4-1, the tooth 8-3-1 of the main gear interferes with the spherical protrusion 8-4-1, causing the main gear 8-3 and the displacement gear 8-4 to rotate while undergoing relative linear displacement.

[0039] Please continue to see the attached Figure 6The protrusions 8-4-1 are divided into two groups, one group of protrusions 8-4-1 extends from one end of the displacement gear 8-4 to the other end, and the other group of protrusions 8-4-1 extends in the opposite direction. The purpose of this arrangement is to enable the main gear 8-3 and the displacement gear 8-4 to continuously displace the displacement gear 8-4 under continuous meshing, that is, to cause continuous reciprocating motion.

[0040] Please continue to see the attached Figure 6 , a stop plate 8-4-6 is provided on the displacement gear 8-4 corresponding to the protrusion 8-4-1, and the stop plate 8-4-6 is located on one side of the corresponding protrusion 8-4-1 and welded in the tooth groove. The direction in which the protrusion 8-4-1 points to the stop plate 8-4-6 is the feed direction of the main gear 8-3 relative to the displacement gear 8-4, that is, when the displacement direction of the displacement gear 8-4 is different, the corresponding stop plate 8-4-6 is located on different sides of the protrusion 8-4-1.

[0041] Please continue to see the attached Figure 6 The main gear 8-3 is a double gear. When it meshes with the displacement gear 8-4, the corresponding stop plate 8-4-6 is located between the gaps of the double gears. The gap between the protrusion 8-4-1 and the stop plate 8-4-6 can accommodate the teeth of one of the double gears. In this way, when the displacement gear 8-4 undergoes linear displacement, the gaps between the double gears can always cover different stop plates 8-4-6.

[0042] Please continue to see the attached Figure 6 The second sub-gear 8-8 is also a double gear, and the displacement gear 8-4 is also provided with a protrusion 8-4-1 and a stop plate 8-4-6 corresponding to the second sub-gear 8-8, so that the second sub-gear 8-8 can also assist the displacement gear 8-4 to achieve the displacement operation.

[0043] Please continue to see the attached Figure 1 A fire-blocking door 11 (shown by a dotted line) is provided at a position between the push plate 2 and the incinerator chamber in the feed pipe 1. The fire-blocking door 11 can be displaced radially along the feed pipe 1. When the fire-blocking door 11 is displaced, the second hydraulic cylinder 12 provides power to realize reciprocating motion, and the power of the second hydraulic cylinder 12 comes from the hydraulic station 4.

[0044] Other components of the hazardous waste incineration feeding system according to the embodiment of the present invention, such as a motor, a hydraulic cylinder, etc., and operations are known to ordinary technicians in the field and will not be described in detail here.

[0045] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0046] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. Hazardous waste incineration feeding system, characterized in that: The invention comprises a feed pipe with one end extending into the incinerator cavity and connected to the incinerator cavity, the other end of the feed pipe is provided with a push plate which can be reciprocated along the axial direction of the feed pipe, the middle part of the feed pipe is provided with a feed hopper, the feed hopper is provided with a scattering device, the scattering device comprises at least two rollers arranged in parallel, and all the rollers are driven by a transmission assembly; The transmission assembly includes a main transmission shaft that is coaxial with and connected to at least one of the rollers, and also includes a first sub-transmission shaft that is coaxial with and connected to the remaining rollers. A main gear is coaxially arranged on the main transmission shaft, and a displacement gear meshing with the main gear is coaxially arranged on the first sub-transmission shaft. A plurality of protrusions are distributed in the circumferential direction of the displacement gear, and the plurality of protrusions are also distributed along the axial direction of the displacement gear, corresponding one-to-one to the tooth grooves of the displacement gear, and are arranged on the side walls of the tooth grooves. When the main gear drives the displacement gear to rotate so that the teeth on the main gear correspond to the protrusions, the teeth interfere with the protrusions, so that the displacement gear rotates and undergoes linear displacement.

2. The hazardous waste incineration feeding system according to claim 1, characterized in that: The protrusions are divided into two groups, one group of protrusions extends from one end of the displacement gear to the other end, and the other group of protrusions extends in the opposite direction.

3. The hazardous waste incineration feeding system according to claim 2, characterized in that: The displacement gear is provided with a stop plate corresponding to the protrusions one by one and fixed in the tooth groove, and the direction in which the protrusions point to the stop plate is the feeding direction of the main gear relative to the displacement gear.

4. The hazardous waste incineration feeding system according to claim 3, characterized in that: The main gear is a double gear. When it meshes with the displacement gear, the corresponding stop plate is located between the gaps of the double gears. The gap between the protrusion and the stop plate can accommodate one of the double gears.

5. The hazardous waste incineration feeding system according to any one of claims 1 to 4, characterized in that: The breaking device also includes at least two rollers arranged parallel to the grinding roller, and the transmission assembly also includes a second auxiliary transmission shaft coaxial with and connected to at least one of the rollers, and a first auxiliary gear meshing with the main gear is coaxially arranged on the second auxiliary transmission shaft.

6. The hazardous waste incineration feeding system according to claim 5, characterized in that: The transmission assembly also includes a third secondary transmission shaft that is coaxial with and connected to the remaining rollers, and a second secondary gear that is coaxially arranged on the third secondary transmission shaft and meshes with the first secondary gear and the displacement gear respectively.

7. The hazardous waste incineration feeding system according to claim 6, characterized in that: A gear box is provided on one side of the feed hopper, and the main gear, the displacement gear, the first sub-gear and the second sub-gear are all placed in the gear box. The main transmission shaft, the first sub-transmission shaft, the second sub-transmission shaft and the third sub-transmission shaft are all arranged in the gear box and extend into the feed hopper, and are rotatably connected to the gear box and the feed hopper respectively, and one end of the main transmission shaft also extends outside the gear box.

8. The hazardous waste incineration feeding system according to claim 7, characterized in that: The first secondary transmission shaft is connected to the gear box and the feed hopper via a sliding pair, which includes a cylindrical bracket and a freely rotatable ball embedded in the cylindrical bracket, and also includes a shell connected to the cylindrical bracket.

9. The hazardous waste incineration feeding system according to any one of claims 1 to 4, characterized in that: A fire-blocking door is arranged in the feed pipe at a position between the push plate and the incinerator chamber, and the fire-blocking door can be displaced radially along the feed pipe.

Images