A method for in-situ production of new materials using municipal solid waste incineration fly ash

Abstract

The present invention discloses a method for in-situ production of new materials using municipal solid waste incineration fly ash, which relates to the technical field of municipal solid waste treatment and aims to solve the technical problem of low efficiency in removing harmful substances from municipal solid waste by a rotary kiln incinerator. The method includes feeding municipal solid waste into a rotary kiln incinerator for incineration to remove harmful substances from the municipal solid waste, obtaining harmless municipal solid waste fly ash, weighing a certain amount of the harmless municipal solid waste fly ash and fly ash, adding sodium silicate and water, stirring to make the slurry mix evenly, adding hydrogen peroxide with a certain concentration and sodium oleate and stirring and mixing them, pouring the mixed slurry into a mold, sealing it and placing it for curing at a certain temperature for 24 hours, then taking it out and placing it under room temperature conditions for continuous curing until constant weight, and forming a fly ash-based porous thermal insulation material after the curing is completed. Through the structural design of the rotary kiln incinerator, the present invention enables the rotary kiln incinerator to efficiently remove harmful substances in municipal solid waste, obtain harmless municipal solid waste fly ash, and produce a fly ash-based porous thermal insulation material using the harmless municipal solid waste fly ash, thus realizing waste utilization.

Description

Technical Field

[0001] The present invention relates to the technical field of domestic waste treatment, and more specifically, to a method for in-situ production of new materials using fly ash from waste incineration. Background Art

[0002] Waste incineration power generation is the best way to "reduce, harmlessize, and resourceize" domestic waste. However, after incineration treatment, fly ash accounting for about 3%-5% of the waste weight and ash slag accounting for 25%-30% of the waste weight are generated. "Fly ash" is the general term for the bottom ash settled at the bottom of the flue and chimney of waste incineration plants, waste incineration flue gas emissions, purification systems, collectors, and flues. Since fly ash contains dioxins and heavy metals, it must be solidified / stabilized, and the treated product can be landfilled and resourcefully utilized. However, due to the cumulative nature of ion dissolution, and the fact that ash slag may be affected by the environment during storage, disposal, and resource utilization, resulting in changes in the leachability of heavy metals, posing a threat to the surrounding environment and human health. Therefore, ash slag is a hazardous waste with potential hazards and must also be harmlessly disposed of and resourcefully utilized.

[0003] As the main equipment for dioxin removal from fly ash of waste incineration, the rotary kiln incinerator is applicable to almost all combustible waste. The main body of the rotary kiln is a rotatable horizontal cylindrical shell made of steel plates lined with refractory materials. The tube has a certain inclination. After the waste enters the rotary kiln, it slowly moves towards the tail with the rotation of the cylinder body. The rotation of the kiln body enables the materials to fully contact during the combustion and combustion air processes. After drying, burning, and removing harmful substances in the waste, the fly ash of the waste is discharged to the post-treatment system for waste heat recovery, rapid cooling, dust removal, acid gas absorption, flue gas emission, etc.

[0004] In the actual design process of the rotary kiln, it is necessary to coordinate various aspects such as the inclination, length, and rotation speed. After the waste enters the rotary kiln for incineration, the contact between the waste and the inner wall of the rotary kiln depends on the rotation of the rotary kiln and the weight of the waste itself, resulting in waste of the temperature of part of the inner wall of the rotary kiln. To reduce the amount of dioxins generated by waste incineration and ensure sufficient combustion of the waste, the rotary kiln is relatively long, large in volume, and large in floor area, causing waste of the installation site. The residence time of the waste on the inner wall of the rotary kiln is within 0.5-2 hours, and the efficiency of removing harmful substances by waste combustion is low. In view of this, we propose a dioxin pyrolysis system for fly ash from waste incineration. Summary of the Invention

[0005] The purpose of the present invention is to provide a method for in-situ production of new materials using fly ash from waste incineration to solve the technical problem of low efficiency of removing harmful substances by waste combustion in a rotary kiln incinerator.

[0006] To solve the above technical problems, the present invention provides the following technical solution: A method for in-situ production of new materials using municipal solid waste incineration fly ash, comprising the following steps:

[0007] S1: Feed municipal solid waste into a rotary kiln incinerator for incineration to remove harmful substances from the municipal solid waste, obtaining harmless municipal solid waste fly ash; the rotary kiln incinerator includes a base, a rotary structure A is fixedly provided on the base, a furnace body mechanism is provided on the rotary structure A, a centrifugal turning mechanism is provided on the furnace body mechanism, and a rotary mechanism B is provided at the tail end of the furnace body mechanism and the base;

[0008] The furnace body mechanism includes an incineration tube, the incineration tube is horizontally structured and fixedly provided at the rotating end of the rotary structure A, and a plurality of threaded guide grooves are arranged on the inner surface of the incineration tube in an annular equidistant structure;

[0009] The centrifugal turning mechanism includes a centrifugal component, the centrifugal component is provided on the incineration tube, and a turning component is provided on the centrifugal component;

[0010] The rotary mechanism B includes a first output end and a second output end, the input end of the centrifugal component is fixedly connected to the first output end, the turning component is movably connected to the second output end, the simultaneous rotation of the first output end and the second output end causes the centrifugal component and the turning component to form a centrifugal rotation state, and the relative rotation of the first output end with respect to the second output end causes the centrifugal component and the turning component to form a turning rotation state. Through the structural design of the rotary kiln incinerator of the present invention, by feeding the garbage into the incineration tube for incineration to remove harmful substances, in the early stage of removing harmful substances from the garbage, by controlling the rotary mechanism B, the centrifugal component and the turning component form a centrifugal rotation state, so that the garbage can better contact the inner wall of the incineration tube, thereby improving the efficiency of removing harmful substances from the garbage. When the volume of the garbage shrinks, by controlling the rotary mechanism B, the centrifugal component and the turning component form a turning rotation state to turn the small-volume garbage, making the garbage incineration relatively uniform, thereby further improving the efficiency of removing harmful substances from the garbage. When the harmful substances in the garbage are removed and the garbage fly ash is formed, the incineration tube is driven to rotate by the rotary structure A, and the threaded guide grooves rotate to assist the discharge of the garbage fly ash, without relying on the inclination, length and rotation speed of the incineration tube. The rotary kiln incinerator of the present invention is relatively smaller in volume than the traditional design and has a higher efficiency in removing harmful substances from the garbage, solving the technical problem of low efficiency in removing harmful substances from garbage combustion in the current rotary kiln incinerator.

[0011] S2: Weigh a certain amount of harmless municipal solid waste fly ash and fly ash, add sodium silicate and water, and stir to make the slurry evenly mixed.

[0012] S3: Add hydrogen peroxide and sodium oleate with a certain concentration and stir and mix.

[0013] S4: Pour the mixed slurry into a mold, seal it, place it for curing at a certain temperature for 24 hours, then take it out and continue to cure at room temperature until constant weight.

[0014] S5: After the curing is completed, a fly ash-based porous thermal insulation material is formed.

[0015] Preferably, both ends of the incineration tube are rotatably connected with a rotating ring A. A connecting ring is fixedly arranged on the rotating ring A at the head end, and a filter plate is fixedly arranged on the rotating ring A at the tail end. A plurality of arc grooves A are arranged on the filter plate in an annular equidistant structure. A folding baffle is arranged on the arc groove A, and both ends of the folding baffle are fixedly connected with both ends of the arc groove A. The folding baffle is made of a flexible high-temperature resistant material.

[0016] Preferably, a feeding pipe is fixedly arranged on the connecting ring. The feeding pipe is fixedly connected with the base through a connecting seat. A rotating ring B is arranged at the tail end of the feeding pipe. The rotating ring B is fixedly connected with the feeding pipe through a plurality of support rods arranged in an annular equidistant structure.

[0017] Preferably, the centrifugal assembly includes a connecting shaft A arranged in the feeding pipe. A centrifugal column is fixedly arranged on the connecting shaft A. A plurality of installation arc grooves are arranged on the surface of the centrifugal column corresponding to the number of the plurality of arc grooves A. Both ends of the connecting shaft A are respectively rotatably connected with the rotating ring B and the filter plate. The tail end of the connecting shaft A penetrates through the filter plate and is fixedly provided with an installation round block. A plurality of arc grooves B are arranged on the installation round block corresponding to the number of the plurality of arc grooves A. The arc center lines of the arc groove A, the installation arc groove and the arc groove B coincide.

[0018] Preferably, the material turning assembly includes a plurality of arc plates respectively arranged in the plurality of installation arc grooves, and the arc plates are adapted to the shapes of the installation arc grooves. A rotating rod A is rotatably connected to the tail end of the arc plate relative to the arc center position of the installation arc groove. The rotating rod A penetrates through the filter plate and is rotatably connected with the installation round block. A rotating rod B is rotatably connected to the tail end of the arc plate relative to the position of the arc groove B. The tail end of the rotating rod B penetrates through the folding baffle and is movably connected with the arc groove B.

[0019] Preferably, the rotating mechanism B includes a mounting seat arranged on the tail side of the incineration tube. The mounting seat is fixedly connected with the base. A motor is fixedly arranged at the tail end of the mounting seat. A rotating cavity is arranged at the head end of the mounting seat. The head end of the rotating cavity is rotatably connected with the installation round block. The tail end of the rotating cavity is rotatably connected with a connecting shaft B. The first output end is constituted by the connecting shaft B. The head end of the connecting shaft B is fixedly connected with the installation round block. The tail end of the connecting shaft B penetrates through the mounting seat and is fixedly connected with the output shaft of the motor. A reverse rotation assembly is fixedly arranged on the connecting shaft B, and a forward rotation assembly is arranged on the reverse rotation assembly.

[0020] Preferably, the reverse rotation assembly includes a fixed ring fixedly arranged on the coupling shaft B. A limiting rotation groove is formed on the surface of the fixed ring. The depth of the limiting rotation groove gradually decreases in the counterclockwise direction. A reverse arc groove is formed on the limiting rotation groove. Limiting chamfers are formed at both ends of the reverse arc groove. A limiting post A is movably connected to the reverse arc groove. The limiting post A is adapted to the shape of the reverse arc groove. The limiting post A and the deep part of the reverse arc groove are elastically connected by a spring A.

[0021] Preferably, the forward rotation assembly includes a limiting rotation ring. The limiting post A is movably connected to the inner edge surface of the limiting rotation ring. The limiting rotation ring is rotatably arranged on the limiting rotation groove. The second output end is composed of the limiting rotation ring. A plurality of triangular grooves are formed on the surface of the limiting rotation ring in an annular equidistant structure. The depth of the triangular groove gradually decreases in the clockwise direction. A limiting post B is movably connected to the triangular groove. The limiting post B is movably connected to the rotation cavity. The limiting post B and the deep part of the triangular groove are elastically connected by a spring B. A material turning guide groove is formed at the head end of the limiting rotation ring. The tail ends of a plurality of the rotating rods B all penetrate through the arc groove B and are movably connected to the material turning guide groove.

[0022] Preferably, the material turning guide groove includes a plurality of V-shaped guide grooves arranged in an annular equidistant structure, and any two adjacent V-shaped guide grooves are communicated with each other.

[0023] The beneficial effects of the present invention are as follows:

[0024] 1. Through the structural design of the rotary kiln incinerator of the present invention, harmful substances are removed by sending garbage into the incineration tube for incineration. In the early stage of removing harmful substances from the garbage, by controlling the rotating mechanism B, the centrifugal assembly and the material turning assembly form a centrifugal rotation state, so that the garbage can better contact the inner wall of the incineration tube, thereby improving the efficiency of removing harmful substances from the garbage. When the volume of the garbage shrinks, by controlling the rotating mechanism B, the centrifugal assembly and the material turning assembly form a material turning rotation state to turn over the small-volume garbage, so that the garbage is incinerated relatively evenly, thereby further improving the efficiency of removing harmful substances from the garbage. When the harmful substances in the garbage are removed and garbage fly ash is formed, the incineration tube is driven to rotate by the rotating structure A, and the threaded guide groove rotates to assist in the discharge of the garbage fly ash, without relying on the inclination, length and rotation speed of the incineration tube. The rotary kiln incinerator of the present invention is relatively smaller in volume than the traditional design and has a higher efficiency of removing harmful substances from the garbage, solving the technical problem of low efficiency of removing harmful substances by garbage combustion in the current rotary kiln incinerator.

[0025] 2. Through the structural design of the centrifugal material turning mechanism and the rotating mechanism B, when the motor output shaft rotates forward, it can drive the coupling B, the mounting round block, and the limiting rotating ring to rotate forward. The centrifugal component and the material turning component rotate forward at the same time. When the motor output shaft rotates reversely, it can drive the coupling B and the mounting round block to rotate reversely, and the limiting rotating ring does not rotate. As a result, while the centrifugal component and the material turning component rotate reversely, relative rotation occurs between the mounting round block and the rotating ring, changing the clearance position between the material turning guide groove and several arc grooves B, causing the lever B to move relative to the arc groove B. When the lever B moves on the two inclined grooves of the V-shaped guide groove respectively, the lever B moves along the centripetal direction and the eccentric direction of the arc groove B respectively, causing the arc plate to make a reciprocating rotating material turning motion relative to the mounting arc groove. Only by the bidirectional rotation of the motor output shaft can the centrifugal material turning mechanism be driven to perform centrifugal rotating motion and material turning rotating motion, which is convenient to use, time-saving and labor-saving, thus further solving the technical problem of low efficiency in removing harmful substances by garbage combustion in the current rotary kiln incinerator. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is the overall structural schematic diagram of the present invention;

[0027] Figure 2 is the partial structural sectional schematic diagram of the furnace body mechanism, the centrifugal material turning mechanism and the rotating mechanism B of the present invention;

[0028] Figure 3 is the partial structural sectional schematic diagram of the furnace body mechanism of the present invention;

[0029] Figure 4 is the structural schematic diagram of the centrifugal material turning mechanism of the present invention;

[0030] Figure 5 is the structural schematic diagram of the centrifugal component of the present invention;

[0031] Figure 6 is the split structural schematic diagram of the material turning component of the present invention;

[0032] Figure 7 is the split structural schematic diagram of the rotating mechanism B of the present invention;

[0033] Figure 8 is the sectional structural schematic diagram of the rotating mechanism B of the present invention;

[0034] Figure 9 is Figure 8 the enlarged schematic diagram of the A part structure of;

[0035] Figure 10 is the partial motion state schematic diagram of the centrifugal component and the material turning component in the centrifugal rotating state of the present invention;

[0036] Figure 11This is a schematic diagram of the partial motion states of the centrifugal component and the material turning component in the material turning and rotating state of the present invention.

[0037] Description of the reference numerals in the figure:

[0038] 1. Base; 2. Rotating structure A; 3. Furnace body mechanism; 4. Centrifugal material turning mechanism; 5. Rotating mechanism B;

[0039] 30. Connecting seat; 31. Incineration pipe; 32. Threaded guide groove; 33. Connecting ring; 34. Filter plate; 35. Arc groove A; 36. Folding baffle; 37. Feed pipe; 38. Rotating ring B; 39. Support rod;

[0040] 310. Rotating ring A;

[0041] 41. Centrifugal component; 42. Material turning component;

[0042] 411. Coupling shaft A; 412. Centrifugal column; 413. Installation arc groove; 414. Installation round block; 415. Arc groove B;

[0043] 421. Arc plate; 422. Rotating rod A; 423. Rotating rod B;

[0044] 51. Mounting seat; 52. Motor; 53. Rotating cavity; 54. Coupling shaft B; 55. Reverse rotating component; 56. Forward rotating component;

[0045] 551. Fixed ring; 552. Limiting rotating groove; 553. Reverse arc groove; 554. Limiting chamfer; 555. Limiting column A; 556. Spring A;

[0046] 561. Limiting rotating ring; 562. Triangular groove; 563. Limiting column B; 564. Spring B; 565. Material turning guide groove; 566. V-shaped guide groove. Detailed implementation manners

[0047] As Figures 1 to 11 shown, a method for in-situ production of new materials using municipal solid waste incineration fly ash according to the present invention includes the following steps:

[0048] S1: Feed municipal solid waste into a rotary kiln incinerator for incineration to remove harmful substances in the municipal solid waste and obtain harmless municipal solid waste fly ash; the rotary kiln incinerator includes a base 1, a rotating structure A 2 is fixedly arranged on the base 1, a furnace body mechanism 3 is arranged on the rotating structure A 2, a centrifugal material turning mechanism 4 is arranged on the furnace body mechanism 3, and a rotating mechanism B 5 is arranged at the tail end of the base 1 of the furnace body mechanism 3; the rotating structure A 2 of the present invention is a prior art and will not be elaborated here.

[0049] The furnace body mechanism 3 includes an incineration tube 31, and the incineration tube 31 is horizontally structured and fixedly arranged at the rotating end of the rotating structure A2. The inner surface of the incineration tube 31 is provided with a number of threaded guide grooves 32 in an annular equidistant structure.

[0050] The centrifugal material turning mechanism 4 includes a centrifugal component 41, and the centrifugal component 41 is arranged on the incineration tube 31. A material turning component 42 is arranged on the centrifugal component 41. The rotating mechanism B5 includes a first output end and a second output end. The input end of the centrifugal component 41 is fixedly connected to the first output end, and the material turning component 42 is movably connected to the second output end. The simultaneous rotation of the first output end and the second output end causes the centrifugal component 41 and the material turning component 42 to form a centrifugal rotation state, and the relative rotation of the first output end and the second output end causes the centrifugal component 41 and the material turning component 42 to form a material turning rotation state.

[0051] S2: Weigh a certain amount of harmless domestic waste fly ash and fly ash, add sodium silicate and water, and stir to make the slurry evenly mixed.

[0052] S3: Add hydrogen peroxide and sodium oleate with a certain concentration and stir and mix.

[0053] S4: Pour the mixed slurry into a mold, seal it and place it for curing at a certain temperature for 24 hours, then take it out and continue to cure at room temperature until it reaches a constant weight.

[0054] S5: After curing, a fly ash-based porous thermal insulation material is formed.

[0055] In the embodiment of the present invention, both ends of the incineration tube 31 are rotatably connected with a rotating ring A310. A connecting ring 33 is fixedly arranged on the rotating ring A310 at the head end, and a filter plate 34 is fixedly arranged on the rotating ring A310 at the tail end. A number of arc grooves A35 are provided on the filter plate 34 in an annular equidistant structure. A folding baffle 36 is arranged on the arc groove A35, and both ends of the folding baffle 36 are fixedly connected to both ends of the arc groove A35. The folding baffle 36 is made of a flexible high-temperature resistant material.

[0056] In the embodiment of the present invention, a feeding pipe 37 is fixedly arranged on the connecting ring 33. The feeding pipe 37 is fixedly connected to the base 1 through a connecting seat 30. A rotating ring B38 is arranged at the tail end of the feeding pipe 37, and the rotating ring B38 is fixedly connected to the feeding pipe 37 through a number of support rods 39 arranged in an annular equidistant structure. During use, the feeding pipe 37 is communicated with the output end of an external garbage feeding mechanism.

[0057] In an embodiment of the present invention, the centrifugal assembly 41 includes a connecting shaft A411 disposed in the feed pipe 37. A centrifugal column 412 is fixed on the connecting shaft A411. A number of mounting arc grooves 413 are formed on the surface of the centrifugal column 412 corresponding to the number of arc grooves A35. Both ends of the connecting shaft A411 are rotatably connected to the rotating ring B38 and the filter plate 34 respectively. The tail end of the connecting shaft A411 penetrates through the filter plate 34 and is fixed with a mounting circular block 414. A number of arc grooves B415 are formed on the mounting circular block 414 corresponding to the number of arc grooves A35. The center lines of the arc grooves A35, the mounting arc grooves 413, and the arc grooves B415 coincide.

[0058] In an embodiment of the present invention, the material turning assembly 42 includes a number of arc plates 421 which are respectively disposed in a number of mounting arc grooves 413, and the arc plates 421 are adapted to the shapes of the mounting arc grooves 413. The tail end of the arc plate 421 is rotatably connected to a rotating rod A422 at a position corresponding to the center of the arc of the mounting arc groove 413. The rotating rod A422 penetrates through the filter plate 34 and is rotatably connected to the mounting circular block 414. The tail end of the arc plate 421 is rotatably connected to a rotating rod B423 at a position corresponding to the arc groove B415. The tail end of the rotating rod B423 penetrates through the folding baffle 36 and is movably connected to the arc groove B415. Through the structural design of the centrifugal assembly 41 and the material turning assembly 42 in the present invention, the rotation of the mounting circular block 414 can drive the rotation of the connecting shaft A411 and the centrifugal column 412, so that a number of rotating rods A422 rotate around the axis of the connecting shaft A411, causing the filter plate 34 to drive the rotating ring A310 to rotate relative to the incineration tube 31, and the arc plate 421 can rotate relative to the mounting arc groove 413 with the rotating rod A422 as the axis, so that the rotating rod B423 moves in the arc groove B415 and drives the folding baffle 36 to fold and deform in the arc groove A35.

[0059] In an embodiment of the present invention, the rotating mechanism B5 includes a mounting seat 51 disposed on the tail side of the incineration tube 31. The mounting seat 51 is fixedly connected to the base 1. A motor 52 is fixed to the tail end of the mounting seat 51. A rotating cavity 53 is provided at the head end of the mounting seat 51. The head end of the rotating cavity 53 is rotatably connected to the mounting circular block 414. A connecting shaft B54 is rotatably connected to the tail end of the rotating cavity 53. The first output end is constituted by the connecting shaft B54. The head end of the connecting shaft B54 is fixedly connected to the mounting circular block 414. The tail end of the connecting shaft B54 penetrates through the mounting seat 51 and is fixedly connected to the output shaft of the motor 52. A reverse rotation assembly 55 is fixed on the connecting shaft B54, and a forward rotation assembly 56 is provided on the reverse rotation assembly 55. Through the above settings in the present invention, the rotation of the motor 52 controlled by an external control mechanism can drive the rotation of the connecting shaft B54 and the mounting circular block 414.

[0060] In an embodiment of the present invention, the reverse rotation assembly 55 includes a fixed ring 551 fixedly provided on the coupling shaft B54. A limiting rotation groove 552 is formed on the surface of the fixed ring 551. The depth of the limiting rotation groove 552 gradually decreases in the counterclockwise direction. A reverse arc groove 553 is formed on the limiting rotation groove 552. Limiting chamfers 554 are formed at both ends of the reverse arc groove 553. A limiting post A555 is movably connected to the reverse arc groove 553. The limiting post A555 is adapted to the shape of the reverse arc groove 553. The limiting post A555 and the deep part of the reverse arc groove 553 are elastically connected by a spring A556.

[0061] In an embodiment of the present invention, the forward rotation assembly 56 includes a limiting rotation ring 561. The limiting post A555 is movably connected to the inner edge surface of the limiting rotation ring 561. The limiting rotation ring 561 is rotatably provided on the limiting rotation groove 552. The second output end is constituted by the limiting rotation ring 561. A plurality of triangular grooves 562 are formed on the surface of the limiting rotation ring 561 in an annular equidistant structure. The depth of the triangular grooves 562 gradually decreases in the clockwise direction. A limiting post B563 is movably connected to the triangular grooves 562. The limiting post B563 is movably connected to the rotation cavity 53. The limiting post B563 and the deep part of the triangular grooves 562 are elastically connected by a spring B564. A material turning guide groove 565 is formed at the head end of the limiting rotation ring 561. The tails of a plurality of rotating rods B423 all pass through the arc groove B415 and are movably connected to the material turning guide groove 565. Through the mechanism design of the reverse rotation assembly 55 and the forward rotation assembly 56 of the present invention, in a static state, the limiting post B563 contacts the triangular grooves 562 and the rotation cavity 53 respectively at both ends under the elastic action of the spring B564. When the limiting rotation ring 561 rotates forward, the frictional force of the rotation cavity 53 on the limiting post B563 causes the limiting post B563 to have a force to move along the deep part of the triangular grooves 562. The resistance of the limiting post B563 to the forward rotation of the limiting rotation ring 561 is small. When the limiting rotation ring 561 rotates reversely, the frictional force of the rotation cavity 53 on the limiting post B563 causes the limiting post B563 to have a force to move along the shallow part of the triangular grooves 562, so that the rotation cavity 53 locks the triangular grooves 562 through the limiting post B563. Therefore, the limiting rotation ring 561 cannot rotate reversely. Similarly, it can be known that the fixed ring 551 can rotate reversely relative to the limiting rotation ring 561, and the fixed ring 551 cannot rotate forward relative to the limiting rotation ring 561. It can be seen from this that when the coupling shaft B54 rotates forward, the fixed ring 551 drives the limiting rotation ring 561 to rotate forward as a whole relative to the rotation cavity 53 through the limiting post A555. When the coupling shaft B54 rotates reversely, the fixed ring 551 rotates reversely relative to the limiting rotation ring 561, and the limiting rotation ring 561 does not rotate.

[0062] In an embodiment of the present invention, the material turning guide groove 565 includes a plurality of V-shaped guide grooves 566 arranged in an annular equidistant structure, and any two adjacent V-shaped guide grooves 566 are connected and communicated. Through the structural design of the centrifugal material turning mechanism 4 and the rotating mechanism B5, when the output shaft of the motor 52 rotates forward, the coupling B54, the mounting round block 414, and the limit rotating ring 561 can be driven to rotate forward, and the centrifugal component 41 and the material turning component 42 rotate forward at the same time. When the output shaft of the motor 52 rotates reversely, the coupling B54 and the mounting round block 414 can be driven to rotate reversely, and the limit rotating ring 561 does not rotate. Thus, while the centrifugal component 41 and the material turning component 42 rotate reversely, a relative rotation occurs between the mounting round block 414 and the limit rotating ring 561, so that the gap position between the material turning guide groove 565 and a plurality of arc grooves B415 changes, and the rotating rod B423 moves relative to the arc groove B415. When the rotating rod B423 moves on the two inclined grooves of the V-shaped guide groove 566 respectively, the rotating rod B423 moves along the centripetal direction and the eccentric direction of the arc groove B415 respectively, so that the arc plate 421 makes a reciprocating rotating material turning motion relative to the mounting arc groove 413. Only by the bidirectional rotation of the output shaft of the motor 52, the centrifugal material turning mechanism 4 can be driven to perform centrifugal rotating motion and material turning rotating motion, which is convenient to use, time-saving and labor-saving, and further solves the technical problem of low efficiency of removing harmful substances from waste combustion in the current rotary kiln incinerator.

[0063] The usage method of the above-mentioned rotary kiln incinerator includes the following steps:

[0064] S1: Feed the waste into the incineration pipe 31 from the feed pipe 37 through an external waste feeding mechanism, and the incineration pipe 31 can be driven to rotate by controlling the rotating structure A2 according to the actual situation to assist the waste to enter the incineration pipe 31;

[0065] S2: Control the output shaft of the motor 52 to rotate forward through an external control mechanism, and the centrifugal component 41 and the material turning component 42 rotate forward at the same time, so that the waste can better contact the inner wall of the incineration pipe 31, thereby improving the efficiency of removing harmful substances from the waste;

[0066] S3: According to the reduction of the waste volume, the output shaft of the motor 52 can be controlled to rotate reversely through an external control mechanism, and the rotating rod B423 is made to move on the V-shaped guide groove 566, so that the rotating rod B423 moves along the eccentric direction of the arc groove B415, and the arc plate 421 rotates eccentrically relative to the mounting arc groove 413 to an appropriate position, reducing the movement space of the waste, so that the waste can better contact the inner wall of the incineration pipe 31, thereby ensuring the efficiency of removing harmful substances from the waste;

[0067] S4: When the volume of the garbage is small, the external control mechanism controls the output shaft of the motor 52 to rotate reversely continuously, so that the rotating rod B423 moves on the V-shaped guide groove 566, and the arc plate 421 rotates reciprocally relative to the installation arc groove 413 for the material turning action, turning the small-volume garbage, making the garbage incineration relatively uniform, and thus further improving the efficiency of removing harmful substances from the garbage;

[0068] At the same time, the rotating structure A2 drives the incineration pipe 31 to rotate, assisting in turning the small-volume garbage, and the threaded guide groove 32 rotates to assist in discharging the fly ash of the garbage. The fly ash of the garbage after the harmful substances are removed is discharged from the filter plate 34.

[0069] The embodiments disclosed in the present invention are preferred embodiments, but not limited thereto. Those of ordinary skill in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. However, as long as they do not depart from the spirit of the present invention, they are within the protection scope of the present invention.

Claims

1. A method for in-situ production of materials using fly ash from waste incineration, characterized in that: The following steps are involved: S1: sending domestic waste into a rotary kiln incinerator for incineration to remove harmful substances in the domestic waste and obtain harmless domestic waste fly ash; the rotary kiln incinerator comprises a base (1), a rotating structure A (2) is fixedly provided on the base (1), a furnace body mechanism (3) is provided on the rotating structure A (2), a centrifugal material turning mechanism (4) is provided on the furnace body mechanism (3), and a rotating mechanism B (5) is provided at the rear end of the furnace body mechanism (3) and the base (1); The furnace body mechanism (3) comprises an incineration tube (31), the incineration tube (31) being fixedly arranged at the rotating end of the rotating structure A (2) in a horizontal structure, the inner surface of the incineration tube (31) being provided with a plurality of threaded guide grooves (32) in an annular structure with equal spacing, both ends of the incineration tube (31) being rotatably connected with a rotating ring A (310), a filter plate (34) being fixedly arranged on the rotating ring A (310) at the rear end, the filter plate (34) being provided with a plurality of arc grooves A (35) in an annular structure with equal spacing, and a folding baffle (36) being arranged on the arc groove A (35); The centrifugal material turning mechanism (4) comprises a centrifugal component (41), the centrifugal component (41) is arranged on the incineration tube (31), and a material turning component (42) is arranged on the centrifugal component (41); The rotating mechanism B (5) comprises a first output end and a second output end, the input end of the centrifugal component (41) is fixedly connected to the first output end, the flipping component (42) is movably connected to the second output end, the first output end and the second output end rotate simultaneously so that the centrifugal component (41) and the flipping component (42) form a centrifugal rotation state, and the first output end rotates relative to the second output end so that the centrifugal component (41) and the flipping component (42) form a flipping rotation state; The centrifugal assembly (41) comprises a connecting shaft A (411), a centrifugal column (412) being fixedly provided on the connecting shaft A (411), a plurality of mounting arc grooves (413) being provided on the surface of the centrifugal column (412) corresponding to the number of the arc grooves A (35), a rear end of the connecting shaft A (411) passing through the filter plate (34) and being fixedly provided with a mounting round block (414), a plurality of arc grooves B (415) being provided on the mounting round block (414) corresponding to the number of the arc grooves A (35); The material turning assembly (42) comprises a plurality of arc plates (421), the plurality of arc plates (421) being respectively arranged in a plurality of the mounting arc grooves (413), and the shape of the arc plates (421) and the mounting arc grooves (413) being adapted to each other, the tail end of the arc plate (421) being rotatably connected to a rotating rod A (422) relative to the arc center position of the mounting arc groove (413), the rotating rod A (422) passing through the filter plate (34) and being rotatably connected to the mounting round block (414), the tail end of the arc plate (421) being rotatably connected to a rotating rod B (423) relative to the arc groove B (415), the tail end of the rotating rod B (423) passing through the folding baffle (36) and being movably connected to the arc groove B (415); S2: Weigh a certain amount of harmless domestic waste fly ash and fly ash, add water glass and water, and stir to make the slurry mix evenly; S3: adding a certain concentration of hydrogen peroxide and sodium oleate and stirring to mix; S4: Pour the mixed slurry into a mold, seal it and place it at a certain temperature for curing for 24 hours, then take it out and continue curing at room temperature until constant weight; S5: After curing, a fly ash-based porous thermal insulation material is formed.

2. The method for in-situ production of materials using waste incineration fly ash according to claim 1, characterized in that: A connecting ring (33) is fixedly provided on the rotating ring A (310) at the head end, and two ends of the folding baffle (36) are fixedly connected to two ends of the arc groove A (35), and the folding baffle (36) is made of a flexible high-temperature resistant material.

3. The method for in-situ production of materials using waste incineration fly ash according to claim 2, characterized in that: A feed pipe (37) is fixedly provided on the connecting ring (33), the feed pipe (37) being fixedly connected to the base (1) via a connecting seat (30), a swivel B (38) being provided at the rear end of the feed pipe (37), the swivel B (38) being fixedly connected to the feed pipe (37) via a plurality of support rods (39) arranged in an annular structure with equal spacing.

4. The method for in-situ production of materials using waste incineration fly ash according to claim 3, characterized in that: The connecting shaft A (411) is disposed in the feed pipe (37), and the two ends of the connecting shaft A (411) are rotatably connected to the swivel B (38) and the filter plate (34) respectively, and the arc center lines of the arc groove A (35), the installation arc groove (413) and the arc groove B (415) coincide with each other.

5. The method for in-situ production of materials using waste incineration fly ash according to claim 4, characterized in that: The rotating mechanism B (5) comprises a mounting seat (51), wherein the mounting seat (51) is arranged at the rear side of the incineration tube (31), the mounting seat (51) is fixedly connected to the base (1), a motor (52) is fixedly arranged at the rear end of the mounting seat (51), a rotating chamber (53) is arranged at the head end of the mounting seat (51), the head end of the rotating chamber (53) is rotatably connected to the mounting round block (414), the tail end of the rotating chamber (53) is rotatably connected to a connecting shaft B (54), the first output end is constituted by the connecting shaft B (54), the head end of the connecting shaft B (54) is fixedly connected to the mounting round block (414), the tail end of the connecting shaft B (54) passes through the mounting seat (51) and is fixedly connected to the output shaft of the motor (52), a reverse rotating component (55) is fixedly arranged on the connecting shaft B (54), and a forward rotating component (56) is arranged on the reverse rotating component (55).

6. The method for in-situ production of materials using waste incineration fly ash according to claim 5, characterized in that: The reverse rotation component (55) comprises a fixing ring (551), the fixing ring (551) being fixedly mounted on the connecting shaft B (54), the fixing ring (551) having a limited rotation groove (552) on its surface, the depth of the limited rotation groove (552) gradually decreasing in the counterclockwise direction, a reverse arc groove (553) being formed on the limited rotation groove (552), both ends of the reverse arc groove (553) being formed with limited chamfers (554), a limited column A (555) being movably connected to the reverse arc groove (553), the limited column A (555) being adapted in shape to the reverse arc groove (553), and the limited column A (555) being elastically connected to the deep part of the reverse arc groove (553) via a spring A (556).

7. The method for in-situ production of materials using waste incineration fly ash according to claim 6, characterized in that: The forward rotating assembly (56) comprises a limit rotating ring (561), the limit column A (555) is movably connected to the inner edge surface of the limit rotating ring (561), the limit rotating ring (561) is rotatably arranged on the limit rotating groove (552), the second output end is formed by the limit rotating ring (561), and the surface of the limit rotating ring (561) is annular and evenly spaced and has a plurality of triangular grooves (562), the depth of which gradually decreases in the clockwise direction. The triangular groove (562) is movably connected to a limiting column B (563), the limiting column B (563) is movably connected to the rotating cavity (53), the limiting column B (563) is elastically connected to the deep part of the triangular groove (562) via a spring B (564), a material turning guide groove (565) is formed at the head end of the limiting rotating ring (561), and the tail ends of the plurality of rotating rods B (423) all pass through the arc groove B (415) and are movably connected to the material turning guide groove (565).

8. The method for in-situ production of materials using waste incineration fly ash according to claim 7, characterized in that: The material turning guide groove (565) comprises a plurality of V-shaped guide grooves (566) arranged in a ring-shaped structure with equal spacing, and any two adjacent V-shaped guide grooves (566) are connected.

Images