CN110802108A - Material raising plate for thermal desorption roller, thermal desorption roller and thermal desorption furnace - Google Patents
Material raising plate for thermal desorption roller, thermal desorption roller and thermal desorption furnace Download PDFInfo
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- CN110802108A CN110802108A CN201911211814.9A CN201911211814A CN110802108A CN 110802108 A CN110802108 A CN 110802108A CN 201911211814 A CN201911211814 A CN 201911211814A CN 110802108 A CN110802108 A CN 110802108A
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- thermal desorption
- cylinder
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- desorption
- roller
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- 238000003795 desorption Methods 0.000 title claims abstract description 147
- 239000000463 material Substances 0.000 title claims abstract description 135
- 239000002689 soil Substances 0.000 claims abstract description 67
- 238000009825 accumulation Methods 0.000 claims abstract description 13
- 238000007599 discharging Methods 0.000 claims description 18
- 210000000078 claw Anatomy 0.000 claims description 9
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 8
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 8
- 241001330002 Bambuseae Species 0.000 claims description 8
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 8
- 230000000712 assembly Effects 0.000 claims description 8
- 238000000429 assembly Methods 0.000 claims description 8
- 239000011425 bamboo Substances 0.000 claims description 8
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 238000011066 ex-situ storage Methods 0.000 abstract 1
- 230000007480 spreading Effects 0.000 description 12
- 238000000034 method Methods 0.000 description 7
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 239000003546 flue gas Substances 0.000 description 5
- 230000008569 process Effects 0.000 description 3
- 238000003466 welding Methods 0.000 description 2
- 239000004480 active ingredient Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
- B09C1/06—Reclamation of contaminated soil thermally
- B09C1/065—Reclamation of contaminated soil thermally by pyrolysis
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- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Muffle Furnaces And Rotary Kilns (AREA)
Abstract
The invention provides a material raising plate for a thermal desorption roller, the thermal desorption roller and a thermal desorption furnace, relates to the technical field of ex-situ thermal desorption, and solves the technical problem that the thermal desorption roller in the prior art cannot spill soil at the initial or ending material spilling stage, so that a larger wind tunnel is easily caused. The lifting plate for the thermal desorption roller comprises a lifting plate body and a material leaking structure arranged on the lifting plate body; the material leaking structure is arranged in the middle area of the lifting blade body in the through length direction, and the material leaking structure is a notch formed in at least one of the baffle and the connecting plate, so that soil accumulated in the soil accumulation space can preferentially leak from the material leaking structure. This thermal desorption cylinder includes cylinder body and thermal desorption cylinder and uses the lifting blade. This thermal desorption stove includes desorption stove body and thermal desorption cylinder. The invention provides a lifting blade for a thermal desorption roller, the thermal desorption roller and a thermal desorption furnace, which can lift and scatter soil when the soil is under load and avoid the formation of a larger wind tunnel.
Description
Technical Field
The invention relates to the technical field of heterotopic thermal desorption, in particular to a lifting blade for a thermal desorption roller, a thermal desorption roller with the lifting blade and the thermal desorption furnace with the thermal desorption roller.
Background
The dystopy thermal desorption technique is one of the main technique that is used for restoreing organic matter contaminated soil at present, and the core of this technique is equipped for the thermal desorption cylinder, and the main effect of thermal desorption cylinder is that the stirring, raise and spill contaminated soil, makes its and high temperature flue gas fully contact, and wherein raise the material volume curve of material in-process, the raising of soil spill the state and directly influence the heat exchange efficiency of soil and high temperature flue gas, and then influence the holistic treatment effeciency of equipment.
The applicant finds that when the soil is underloaded, the soil cannot reach the accumulation angle of the soil at the spreading point in the initial spreading stage, the soil cannot be spread out, and a large wind tunnel is easily formed in the initial spreading stage in the thermal desorption roller in the prior art.
Disclosure of Invention
The invention aims to provide a material raising plate for a thermal desorption roller, the thermal desorption roller with the material raising plate for the thermal desorption roller and a thermal desorption furnace with the thermal desorption roller, and aims to solve the technical problems that the thermal desorption roller in the prior art cannot spill soil at the initial material scattering stage, and a large wind tunnel is easily caused. The technical effects that can be produced by the preferred technical scheme in the technical schemes of the invention are described in detail in the following.
In order to achieve the purpose, the invention provides the following technical scheme:
the invention provides a lifting blade for a thermal desorption roller, which comprises a lifting blade body and a material leaking structure arranged on the lifting blade body; wherein,
the lifting plate body comprises a connecting plate and a baffle plate, one end of the connecting plate is connected with the cylinder wall of the thermal desorption roller, the other end of the connecting plate is connected with the baffle plate, and an included angle is formed between the connecting plate and the baffle plate so that a soil accumulation space is formed at the connecting part of the connecting plate and the baffle plate;
the material leaking structure is arranged in the middle area of the lifting blade body in the direction of the through length, and the material leaking structure is a notch arranged on at least one of the baffle and the connecting plate, so that soil accumulated in the soil accumulation space can preferentially leak from the material leaking structure.
In a preferred or alternative embodiment, the material leaking structure is a gap arranged at the joint of the connecting plate and the baffle.
In a preferred or alternative embodiment, the section of the gap on the connecting plate is in a V-shaped structure, and the section of the gap on the baffle penetrates through the baffle along the height direction of the baffle.
The thermal desorption roller provided by the invention comprises a roller body and at least two material raising plates for the thermal desorption roller, wherein the material raising plates are provided by any technical scheme of the invention; wherein,
the cylinder body includes a desorption section of thick bamboo, the connecting plate with desorption section of thick bamboo internal face is connected, at least two thermal desorption for the cylinder lifting blade equipartition in desorption section of thick bamboo circumferencial direction.
In a preferred or optional embodiment, the thermal desorption cylinder includes at least four material raising plates for the thermal desorption cylinder, at least two circles of material raising plates for the thermal desorption cylinder are arranged along the axial direction of the desorption cylinder, at least two material raising plates for the thermal desorption cylinder are uniformly distributed in each circle, and the material raising plates for the thermal desorption cylinder in two adjacent circles are arranged in a staggered manner.
In a preferable or optional embodiment, the distance between the connecting part of the connecting plate and the baffle and the inner wall of the desorption cylinder is 0.1-0.2 times of the inner diameter of the desorption cylinder; the connecting plate and the vertical line led to the inner wall of the desorption cylinder at the joint of the baffle are l5Said baffle plate and5the included angle between the two is 30 degrees to 60 degrees; the connecting plate is connected with the baffleThe straight line of the joint which is led to the inner wall of the desorption cylinder along the extending direction of the height of the baffle is l4The height of the baffle is l2，l2Is 140.4-0.6 times of the total weight of the composition; from the joint of the connecting plate and the inner wall of the desorption cylinder to the direction I4The vertical line is3The shape and the size of the connecting plate are that the desorption cylinder is l4With the nodical district section between to the connecting plate of desorption section of thick bamboo inner wall junction is through l3Mirroring is carried out;
the material leakage structure is a gap arranged at the joint of the connecting plate and the baffle, the section of the gap on the connecting plate is of a V-shaped structure, and the distance from the vertex of the V-shaped structure to the inner wall of the desorption cylinder is 0.25-0.5 times of the distance from the joint of the connecting plate and the baffle to the inner wall of the desorption cylinder; the included angle at the vertex of the V-shaped structure is 45-135 degrees; the length of the tail end of the opening of the V-shaped structure is 0.25-0.5 times of the length of the material lifting plate body.
In a preferred or optional embodiment, the roller body further comprises a breaking cylinder, the breaking cylinder is communicated with the desorption cylinder, at least two claw plates and at least two broken material nail assemblies are arranged on the inner wall surface of the breaking cylinder in a staggered mode, and the claw plates and the broken material nail assemblies are both provided with tip portions and the tip portions of the claw plates and the broken material nail assemblies face the central shaft of the breaking cylinder.
In a preferred or optional embodiment, the roller body further comprises a discharge barrel, the discharge barrel is communicated with one end, away from the crushing barrel, of the desorption barrel, at least two material shielding plates are arranged on the inner wall surface of the discharge barrel, a gap is formed between the bottom surface of each material shielding plate and the inner wall surface of the discharge barrel, the at least two material shielding plates are covered on the inner wall surface of the discharge barrel in an end-to-end manner, a gap is formed between every two adjacent material shielding plates, and the surface formed by the outer wall surfaces of the at least two material shielding plates is wavy;
the covering plate is provided with a material lifting plate which can lift soil entering a gap between the bottom surface of the covering plate and the inner wall surface of the discharging barrel.
In a preferred or optional embodiment, the drum body further comprises a feeding cylinder, the crushing cylinder, the desorption cylinder and the discharging cylinder are sequentially communicated, a feeding plate is arranged on the inner wall surface of the feeding cylinder, the feeding plate is of a spiral structure, and the helix angle of the feeding plate is 45-60 °.
The thermal desorption furnace provided by the invention comprises a desorption furnace body and the thermal desorption roller provided by any technical scheme of the invention.
Based on the technical scheme, the embodiment of the invention can at least produce the following technical effects:
the invention provides a lifting blade for a thermal desorption roller, which comprises a lifting blade body and a material leaking structure arranged on the lifting blade body, wherein a soil accumulation space is formed at the joint of a connecting plate and a baffle plate on the lifting blade body, and when soil is sufficient, the soil accumulation height is higher than that of the baffle plate, so that the baffle plate can be lifted out of the lifting blade body from the upper edge of the baffle plate; in the initial material spreading stage, the accumulation height of the underloaded soil is lower than the height of the baffle plate, and the underloaded soil cannot leak from the upper edge of the baffle plate.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic sectional view of a thermal desorption roller according to the present invention;
fig. 2 is a schematic structural view of the desorption cylinder shown in fig. 1;
fig. 3 is a schematic structural view of a material raising plate for a thermal desorption roller, provided by the invention;
FIG. 4 is a schematic view of the state of soil in the desorption cylinder;
fig. 5 is a schematic side view of the connection between the material raising plate body and the desorption cylinder provided by the invention;
FIG. 6 is a schematic bottom view of the projection of FIG. 5;
FIG. 7 is a schematic view of the position of the material surface of the soil in the lifter plate body;
FIG. 8 is a schematic view of the structure of the material breaking barrel shown in FIG. 1;
FIG. 9 is a schematic view of the claw plate structure shown in FIG. 8;
FIG. 10 is a schematic view of the take-off cylinder shown in FIG. 1;
FIG. 11 is a schematic view of the state of soil in the discharging barrel;
FIG. 12 is a partially enlarged structural view of the discharging barrel;
FIG. 13 is a schematic view of the mask structure of FIG. 10;
fig. 14 is a schematic view of the structure of the feed cylinder shown in fig. 1.
In the figure, 1, a material lifting plate body; 11. a material leaking structure; 12. a connecting plate; 13. a baffle plate; 2. a drum body; 21. a desorption cylinder; 22. breaking the charging barrel; 221. a claw-shaped plate; 222. a material breaking nail component; 23. a discharging barrel; 231. a material covering plate; 232. a material lifting plate; 24. a feeding cylinder; 241. and a feeding plate.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.
The invention provides a lifting plate for a thermal desorption roller, the thermal desorption roller and a thermal desorption furnace, which can also lift and scatter soil when the soil is under load and avoid forming a larger wind tunnel.
The technical solution provided by the present invention is explained in more detail with reference to fig. 1 to 14.
As shown in fig. 1 to 14, the material raising plate for a thermal desorption roller provided by the invention comprises a material raising plate body 1 and a material leaking structure 11 arranged on the material raising plate body 1; wherein,
the material raising plate body 1 comprises a connecting plate 12 and a baffle 13, one end of the connecting plate 12 is connected with the cylinder wall of the thermal desorption roller, the other end of the connecting plate 12 is connected with the baffle 13, and an included angle is formed between the connecting plate 12 and the baffle 13 so that a soil accumulation space is formed at the connecting part of the connecting plate 12 and the baffle 13;
the material leaking structure 11 is arranged in the middle area of the lifting blade body in the direction of the through length, and the material leaking structure 11 is a notch arranged on at least one of the baffle 13 and the connecting plate 12, so that soil accumulated in the soil accumulation space can preferentially leak from the material leaking structure 11.
The invention provides a lifting blade for a thermal desorption roller, which comprises a lifting blade body 1 and a material leaking structure 11 arranged on the lifting blade body 1, wherein a soil accumulation space is formed at the joint of a connecting plate 12 and a baffle 13 on the lifting blade body 1, and the connecting plate 12 and the baffle 13 can also be of an integrally formed structure. When the soil is sufficient, the soil accumulation height is higher than that of the baffle 13, and the lifting plate body 1 can be lifted out of the upper edge of the baffle 13; at the initial material scattering stage, the soil underload is lower than the height of the baffle 13, and the soil cannot leak from the upper edge of the baffle 13, but due to the existence of the material leaking structure 11, the soil can be scattered from the material leaking structure 11, so that a large wind tunnel is prevented from being formed at the initial material scattering stage.
In a preferred or alternative embodiment, the leaking structure 11 is a gap provided at the connection between the connecting plate 12 and the baffle 13.
In a preferred or alternative embodiment, the section of the gap on the connecting plate 12 is in a V-shaped structure, and the section of the gap on the baffle 13 penetrates through the baffle 13 along the height direction of the baffle 13.
Specifically, as shown in fig. 2-3, because the existence of the opening, the soil in the lifting blade body 1 can be firstly lifted out of the opening, because the opening runs through the baffle 13 and the upper section of the connecting plate 12 is of a V-shaped structure, the soil can be firstly lifted out of the opening of the V-shaped structure, each section of the V-shaped opening can be used for scattering materials, and the lifted material curtain is in a strip shape, so that the soil can be fully contacted with high-temperature flue gas, and the treatment quality and efficiency of the soil can be improved.
The thermal desorption roller provided by the invention comprises a roller body 2 and at least two material raising plates for the thermal desorption roller, wherein the material raising plates are provided by any technical scheme of the invention; wherein,
the cylinder body 2 comprises a desorption cylinder 21, the connecting plate 12 is connected with the inner wall surface of the desorption cylinder 21, and at least two material raising plates for the thermal desorption cylinder are uniformly distributed on the circumference of the desorption cylinder 21.
As a preferred or optional embodiment, the thermal desorption cylinder includes at least four material raising plates for the thermal desorption cylinder, at least two rings of material raising plates for the thermal desorption cylinder are arranged in the axial direction of the desorption cylinder 21, at least two material raising plates for the thermal desorption cylinder are uniformly distributed in each ring, and the material raising plates for the thermal desorption cylinder in two adjacent rings are arranged in a staggered manner.
Specifically, the number of each circle of the lifting blade bodies 1 is 8-20, and the lifting and scattering efficiency can be improved by adopting the staggered arrangement of the plurality of lifting blade bodies 1, so that the soil is fully contacted with the high-temperature flue gas, and the treatment quality and efficiency of the soil are improved.
As a preferred or alternative embodiment, as shown in fig. 5, the distance (i.e. point l in the figure) from the inner wall of the desorption cylinder 21 is the joint of the connecting plate 12 and the baffle 13 (i.e. point a in the figure)5) Is 0.1 to 0.2 times of the inner diameter of the desorption cylinder 21; the vertical line led to the inner wall of the desorption cylinder 21 at the joint of the connecting plate 12 and the baffle 13 (point A in the figure) is l5Baffle 13 and l5The included angle (α angle in the figure) is equal to the repose angle of soil, and is usually 30-60 degrees, and the straight line l of the connection part (point A) of the connecting plate 12 and the baffle 13 leading to the inner wall (point D in the figure) of the desorption cylinder 21 along the height extension direction of the baffle 13 is4The height of the baffle 13 is l2，l2Is 140.4-0.6 times of the total weight of the composition; from the joint of the connecting plate 12 and the inner wall of the desorption cylinder 21 (point C in the figure) to the direction l4The vertical line is3The shape and the size of the connecting plate 12 are that of the desorption cylinder 214The section between the intersection point (point D in the figure) of the desorption cylinder 21 and the connection point (point C in the figure) of the connecting plate 12 and the inner wall of the desorption cylinder 21 is indicated by l3Mirroring is carried out;
as shown in fig. 6, is the bottom view of fig. 5 at l5The projection is arranged on the material leakage structure 11 which is a gap arranged at the joint of the connecting plate 12 and the baffle 13The section of the gap on the connecting plate 12 is of a V-shaped structure, and the distance from the vertex of the V-shaped structure (point E in the figure) to the inner wall of the desorption cylinder 21 (point l in the figure)8) The distance between the joint of the connecting plate 12 and the baffle 13 and the inner wall of the desorption cylinder 21 (l in the figure)9) 0.25-0.5 times of the total angle of the V-shaped structure, the included angle (β angle in the figure) at the vertex (E point in the figure) of the V-shaped structure is 45-135 degrees, and the length (l in the figure) of the tail end of the opening of the V-shaped structure6) Is the length of the material lifting plate body 1 (l in the figure)7) 0.25 to 0.5 times of the amount of the active ingredient.
Specifically, as shown in fig. 4 and 7, when the material raising plate body 1 is rotated to l2When the included angle between the horizontal surface of the material and the horizontal surface of the material is equal to the repose angle of soil, the material surface is just equal to l2The angle of the desorption cylinder 21 rotating during the rotation is equal to the angle of the material surface rotating around the discharging point (as shown by point F in fig. 7, it can be understood as the straight line where the edge of the baffle 13 is located), and when the desorption cylinder 21 rotates by gamma1While the charge level is also rotated by gamma1At the moment, the area of the material surface is gradually increased, the material scattering amount is increased, and the sprinkling distance of the soil is gradually increased; when the desorption cylinder 21 rotates to 90 degrees, the material spreading surface also rotates to 90 degrees to reach gamma2The corresponding position, the spreading surface area reaches the maximum, the spreading amount reaches the maximum, and the spreading distance of the soil also reaches the maximum; when the desorption cylinder 21 rotates by 90 degrees to reach an obtuse angle gamma3When the material spreading level reaches the same level as2Also reaches gamma3The area of the material spreading surface is gradually reduced, the material spreading amount is reduced, and the spreading distance of the soil is also gradually reduced. Therefore, in the whole material scattering process, the material scattering amount and the scattering distance of the soil keep a direct proportion relation, so that the heat energy is fully utilized, and the heat energy utilization rate is improved.
As a preferred or alternative embodiment, the drum body 2 further includes a material breaking cylinder 22, the material breaking cylinder 22 is communicated with the desorption cylinder 21, at least two claw plates 221 and at least two material breaking nail assemblies 222 are alternately arranged on the inner wall surface of the material breaking cylinder 22, and the claw plates 221 and the material breaking nail assemblies 222 are both provided with tips and the tips of the tips face the central axis of the material breaking cylinder 22.
Specifically, as shown in fig. 8 to 9, the material breaking nail assembly 222 is composed of a plurality of nail-shaped structures, the claw-shaped plate 221 is fixed on the wall of the desorption cylinder 21 through welding or threaded connection, an included angle θ between the claw-shaped plate 221 and the claw-shaped plate is an obtuse angle, and is generally set to be 120 ° to 150 °, which can ensure that the soil is scooped up and spilled at a higher position, and the soil thrown off has a larger impact force, because the tip portions of the claw-shaped plate 221 and the material breaking nail assembly 222 face the central axis of the material breaking cylinder 22, the soil thrown off and the tip portions have larger stress concentration, and the breaking capacity is stronger; the main function of the material breaking nail assembly 222 is to break larger soil particles, and each material breaking nail assembly 222 comprises 8-20 nail-shaped structures, and each circle comprises 8-20 claw-shaped plates 221 and the material breaking nail assembly 222 respectively.
As a preferable or optional embodiment, the roller body 2 further includes a discharging barrel 23, the discharging barrel 23 is communicated with one end of the desorption barrel 21 away from the crushing barrel 22, at least two material shielding plates 231 are arranged on the inner wall surface of the discharging barrel 23, a gap exists between the bottom surface of each material shielding plate 231 and the inner wall surface of the discharging barrel 23, the at least two material shielding plates 231 are covered on the inner wall surface of the discharging barrel 23 in an end-to-end manner, and a gap exists between the two adjacent material shielding plates 231, and the surface formed by the outer wall surfaces of the at least two material shielding plates 231 is in;
the material shielding plate 231 is provided with a material lifting plate 232 which can lift the soil entering a gap between the bottom surface of the material shielding plate 231 and the inner wall surface of the discharging barrel 23.
Specifically, as shown in fig. 10-13, the shielding plate 231 surrounds a circle to cover the inner wall surface of the discharging barrel 23, and the size of the gap between the bottom surface of the shielding plate 231 and the inner wall surface of the discharging barrel 23 is 100 mm-200 mm; the surface formed by the outer wall surfaces of the at least two covering plates 231 is wavy, so that the contact area between the soil and the covering plates 231 can be increased, and the heat transfer efficiency of the covering plates 231 is improved; the flitch 231 that hides of play feed cylinder 23 is more level and smooth at the wave of centripetal surface, can avoid hiding the flitch 231 and raise soil and spill, and then shelter from flame, but the undershirt face that hides the flitch 231, it sets up the flitch 232 to hide between flitch 231 and the play feed cylinder 23 promptly, the flitch 232 can lift a small amount of soil and hide between flitch 231 and the play feed cylinder 23 inner wall, soil between hiding flitch 231 and the play feed cylinder 23 inner wall can fully absorb the heat of flame radiation on hiding the flitch 231, when improving soil stoving effect, avoid the inner wall of play feed cylinder 23 overheated, improve play feed cylinder 23 life.
As a preferable or optional embodiment, the drum body 2 further includes a feeding cylinder 24, the material breaking cylinder 22, the desorption cylinder 21 and the material discharging cylinder 23 are sequentially communicated, a feeding plate 241 is arranged on an inner wall surface of the feeding cylinder 24, the feeding plate 241 is of a spiral structure, and a helix angle of the feeding plate 241 is 45-60 °.
Specifically, the feeding cylinder 24, the material breaking cylinder 22, the desorption cylinder 21 and the discharging cylinder 23 may be an integral structure, and the inner diameters thereof are equal; as shown in fig. 14, the feeding cylinder 24 is used for rapidly pushing soil into the crushing cylinder 22 to avoid soil overstock, and in order to avoid soil overstock, the helix angle of the feeding plate 241 should be larger than the dynamic repose angle of the soil, usually 45 ° to 60 °, and the number of the feeding plates 241 in one circle is 8 to 20; in order to ensure smooth circulation of the flue gas, the height of the feeding plate 241 needs to be as small as possible on the premise of ensuring no material turnover, and the calculation formula can refer to
Wherein delta is the helix angle of the feed plate 241,
the inclination angle of the feed cylinder 24, D the inner diameter of the feed cylinder 24, N the number of feed plates 241, and ξ a correction factor.
The thermal desorption furnace provided by the invention comprises a desorption furnace body and the thermal desorption roller provided by any technical scheme of the invention.
Any embodiment disclosed herein above is meant to disclose, unless otherwise indicated, all numerical ranges disclosed as being preferred, and any person skilled in the art would understand that: the preferred ranges are merely those values which are obvious or representative of the technical effect which can be achieved. Since the numerical values are too numerous to be exhaustive, some of the numerical values are disclosed in the present invention to illustrate the technical solutions of the present invention, and the above-mentioned numerical values should not be construed as limiting the scope of the present invention.
If the terms "first," "second," etc. are used herein to define parts, those skilled in the art will recognize that: the terms "first" and "second" are used merely to distinguish one element from another in a descriptive sense and are not intended to have a special meaning unless otherwise stated.
Meanwhile, if the invention as described above discloses or relates to parts or structural members fixedly connected to each other, the fixedly connected parts can be understood as follows, unless otherwise stated: a detachable fixed connection (for example using bolts or screws) is also understood as: non-detachable fixed connection (such as riveting and welding), of course, the mutual fixed connection can also be an integral structure (for example, the mutual fixed connection is manufactured by casting and integral forming instead (except that the integral forming process can not be adopted obviously).
In addition, terms used in any technical solutions disclosed in the present invention to indicate positional relationships or shapes include approximate, similar or approximate states or shapes unless otherwise stated. Any part provided by the invention can be assembled by a plurality of independent components or can be manufactured by an integral forming process.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention and not to limit it; although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art will understand that: modifications to the specific embodiments of the invention or equivalent substitutions for parts of the technical features may be made; without departing from the spirit of the present invention, it is intended to cover all aspects of the invention as defined by the appended claims.
Claims (10)
1. A lifting plate for a thermal desorption roller is characterized by comprising a lifting plate body and a material leaking structure arranged on the lifting plate body; wherein,
the lifting plate body comprises a connecting plate and a baffle plate, one end of the connecting plate is connected with the cylinder wall of the thermal desorption roller, the other end of the connecting plate is connected with the baffle plate, and an included angle is formed between the connecting plate and the baffle plate so that a soil accumulation space is formed at the connecting part of the connecting plate and the baffle plate;
the material leaking structure is arranged in the middle area of the lifting blade body in the direction of the through length, and the material leaking structure is a notch arranged on at least one of the baffle and the connecting plate, so that soil accumulated in the soil accumulation space can preferentially leak from the material leaking structure.
2. The material raising plate for the thermal desorption roller as claimed in claim 1, wherein the material leaking structure is a gap arranged at the connection position of the connecting plate and the baffle.
3. The material raising plate for the thermal desorption roller as claimed in claim 2, wherein the section of the gap on the connecting plate is a V-shaped structure, and the section of the gap on the baffle penetrates through the baffle along the height direction of the baffle.
4. A thermal desorption roller is characterized by comprising a roller body and at least two material raising plates for the thermal desorption roller according to any one of claims 1 to 3; wherein,
the cylinder body includes a desorption section of thick bamboo, the connecting plate with desorption section of thick bamboo internal face is connected, at least two thermal desorption for the cylinder lifting blade equipartition in desorption section of thick bamboo circumferencial direction.
5. The thermal desorption cylinder of claim 4, wherein the thermal desorption cylinder comprises at least four material lifting plates for the thermal desorption cylinder, at least two circles of material lifting plates for the thermal desorption cylinder are arranged in the axial direction of the desorption cylinder, at least two material lifting plates for the thermal desorption cylinder are uniformly distributed in each circle, and the material lifting plates for the thermal desorption cylinder in two adjacent circles are arranged in a staggered manner.
6. The thermal desorption roller of claim 4, wherein the distance between the connecting part of the connecting plate and the baffle and the inner wall of the desorption cylinder is 0.1-0.2 times of the inner diameter of the desorption cylinder; the connecting plateAnd the vertical line l leading from the joint of the baffle plate to the inner wall of the desorption cylinder5Said baffle plate and5the included angle between the two is 30 degrees to 60 degrees; the connecting plate and the baffle plate are connected with each other along a straight line l leading to the inner wall of the desorption cylinder in the height extending direction of the baffle plate4The height of the baffle is l2，l2Is 140.4-0.6 times of the total weight of the composition; from the joint of the connecting plate and the inner wall of the desorption cylinder to the direction I4The vertical line is3The shape and the size of the connecting plate are that the desorption cylinder is l4With the nodical district section between to the connecting plate of desorption section of thick bamboo inner wall junction is through l3Mirroring is carried out;
the material leakage structure is a gap arranged at the joint of the connecting plate and the baffle, the section of the gap on the connecting plate is of a V-shaped structure, and the distance from the vertex of the V-shaped structure to the inner wall of the desorption cylinder is 0.25-0.5 times of the distance from the joint of the connecting plate and the baffle to the inner wall of the desorption cylinder; the included angle at the vertex of the V-shaped structure is 45-135 degrees; the length of the tail end of the opening of the V-shaped structure is 0.25-0.5 times of the length of the material lifting plate body.
7. The thermal desorption roller as claimed in claim 4, wherein the roller body further comprises a material breaking barrel, the material breaking barrel is communicated with the desorption barrel, at least two claw plates and at least two material breaking nail assemblies are arranged on the inner wall surface of the material breaking barrel in a staggered mode, the claw plates and the material breaking nail assemblies are both provided with tip portions, and the tip portions of the claw plates and the material breaking nail assemblies face the central axis of the material breaking barrel.
8. The thermal desorption roller as claimed in claim 7, wherein the roller body further comprises a discharge barrel, the discharge barrel is communicated with one end of the desorption barrel, which is far away from the material crushing barrel, at least two material shielding plates are arranged on the inner wall surface of the discharge barrel, a gap is formed between the bottom surface of each material shielding plate and the inner wall surface of the discharge barrel, at least two material shielding plates are covered on the inner wall surface of the discharge barrel in an end-to-end manner, a gap is formed between every two adjacent material shielding plates, and the surface formed by the outer wall surfaces of the at least two material shielding plates is wavy;
the covering plate is provided with a material lifting plate which can lift soil entering a gap between the bottom surface of the covering plate and the inner wall surface of the discharging barrel.
9. The thermal desorption roller as claimed in claim 8, wherein the roller body further comprises a feeding cylinder, the crushing cylinder, the desorption cylinder and the discharging cylinder are sequentially communicated, a feeding plate is arranged on the inner wall surface of the feeding cylinder, the feeding plate is of a spiral structure, and the helix angle of the feeding plate is 45-60 degrees.
10. A thermal desorption furnace comprising a desorption furnace body and the thermal desorption roller according to any one of claims 4 to 9.
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| CN201911211814.9A CN110802108A (en) | 2019-12-02 | 2019-12-02 | Material raising plate for thermal desorption roller, thermal desorption roller and thermal desorption furnace |
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| CN201911211814.9A CN110802108A (en) | 2019-12-02 | 2019-12-02 | Material raising plate for thermal desorption roller, thermal desorption roller and thermal desorption furnace |
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