CN116396768A - Pyrolysis device and method for heat-carrying ball and regenerative medium circulation - Google Patents
Pyrolysis device and method for heat-carrying ball and regenerative medium circulation Download PDFInfo
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- 230000001172 regenerating effect Effects 0.000 title claims abstract description 81
- 238000000034 method Methods 0.000 title claims abstract description 15
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- 238000011084 recovery Methods 0.000 claims abstract description 41
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B51/00—Destructive distillation of solid carbonaceous materials by combined direct and indirect heating
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B53/00—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form
Abstract
The invention discloses a pyrolysis device and a pyrolysis method for heat-carrying balls and regenerative medium circulation, wherein the pyrolysis device comprises a front-end material distributing cylinder, a circulation channel and a rear-end material receiving cylinder which are sequentially connected; the circulating channel comprises a pyrolysis cylinder, a heat-carrying ball and a regenerative heat circulating channel, and a ball guide screening structure, a heat-carrying ball recovery structure and a regenerative heat recovery structure are sequentially arranged in the rear-end material receiving cylinder; according to the invention, the material is dried and pyrolyzed under the action of the heat-carrying ball and the heat-returning medium in cooperation with high-temperature smoke, and after the temperature of the heat-carrying ball is reduced, the material can be dried and pyrolyzed after being heated through the heat-carrying ball and the heat-returning medium channel, so that the cyclic heating of the heat-carrying ball and the heat-returning medium to the material is realized, and the drying and pyrolysis efficiency of the material is improved.
Description
Technical Field
The invention relates to the technical field of organic waste drying, in particular to a pyrolysis device and a pyrolysis method for heat-carrying balls and regenerative heat circulation.
Background
The disclosure of this background section is only intended to increase the understanding of the general background of the invention and is not necessarily to be construed as an admission or any form of suggestion that this information forms the prior art already known to those of ordinary skill in the art.
The organic waste contains a large amount of hydrocarbon-containing organic substances, the thermal instability of the organic substances in the solid waste is utilized in the pyrolysis carbonization technology, the solid waste is heated at high temperature under the anaerobic condition, so that the organic substances therein are thermally decomposed, the hydrocarbon proportion is changed, gaseous substances (pyrolysis gas) and solid substances (biochar) with higher utilization value are formed, and the treatment process has no dioxin emission. The organic waste is subjected to pyrolysis carbonization technology, and the carbon reduction and drainage level of the organic waste is about 30% better than that of the organic waste by an incineration process; and organic solid wastes such as household garbage, agriculture and forestry straws, waste tires, waste plastics and the like hide huge energy sources, and if an advanced carbon emission reduction mode is adopted for reasonable utilization, the aim is to be pushed to realize.
The existing drying equipment has two forms of internal heating rotary furnaces and external heating rotary furnaces, and the internal heating rotary furnaces have the greatest advantages of high material contact and high heat efficiency between heating media, but the internal heating rotary furnaces have the problems that the temperature is difficult to control and the product quality is influenced. The external heating type rotary furnace equipment adopts indirect heating, heat is transferred to organic materials in the drying pyrolysis cylinder through the cylinder wall of the drying pyrolysis cylinder, but the equipment has insufficient pyrolysis, has low heat efficiency, low conversion efficiency and serious energy consumption, and has the problems of high cost, high energy consumption, low carbon yield and the like. Meanwhile, the existing internal heating rotary furnace and external heating rotary furnace have the phenomenon that coking is very easy to generate in the drying and pyrolysis process of organic wastes, and the drying and pyrolysis has viscosity, so that the drying and pyrolysis efficiency is low, and the existing requirements for the drying and pyrolysis are difficult to meet.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a pyrolysis device and a pyrolysis method for heat-carrying balls and regenerative heat circulation, which are used for solving the problem of coking in the drying and pyrolysis process of organic wastes and improving the drying and pyrolysis efficiency by arranging a heat-carrying ball circulation channel and combining a heated cylinder and integrating a direct heating mode of an internal heating rotary furnace and an indirect heating mode of an external heating rotary furnace.
The technical scheme of the invention is as follows:
in a first aspect of the invention, a pyrolysis device for circulating heat-carrying balls and regenerative substances is provided, which comprises a front-end material distributing cylinder, a circulating channel and a rear-end material receiving cylinder which are sequentially connected; the circulating channel comprises a pyrolysis cylinder, a heat-carrying ball and a regenerative heat circulating channel, and a ball guide screening structure, a heat-carrying ball recovery structure and a regenerative heat recovery structure are sequentially arranged in the rear-end material receiving cylinder;
the heat-carrying ball and the material to be pyrolyzed enter the pyrolysis cylinder body through the front-end material distributing cylinder body, the material to be pyrolyzed is rotationally pyrolyzed in the pyrolysis cylinder body, then the heat-carrying ball and the regenerative material generated by pyrolysis are separated through the rear-end material collecting cylinder body, and the separated heat-carrying ball and regenerative material return to the front-end material distributing cylinder body through the heat-carrying ball and regenerative material circulating channel to participate in pyrolysis reaction again.
In some embodiments of the present invention, the front end material distributing cylinder body includes a front end straight cylinder section, a front end cone cylinder section and a material distributing cylinder section which are sequentially connected, a pushing screw is arranged in the front end straight cylinder section, a material distributing cone screw is arranged in the front end cone cylinder section, and a material distributing screw is arranged in the material distributing cylinder section.
In some embodiments of the invention, the pyrolysis cylinder comprises a front end connection ring plate and a rear end connection ring plate, a pyrolysis tube is arranged between the front end connection ring plate and the rear end connection ring plate, a spiral sheet is arranged in the pyrolysis tube, and the screw pitch of the spiral sheet is gradually reduced along the advancing direction of the material.
In some embodiments of the present invention, the heat-carrying ball and the heat-regenerating material circulation channel comprise a front end fixing plate and a rear end fixing plate, a heat-regenerating material tube is arranged between the front end fixing plate and the rear end fixing plate, a heat-regenerating material spiral sheet is arranged in the heat-regenerating material copper tube, and a spiral tube is arranged outside the heat-regenerating tube.
In some embodiments of the present invention, the rear-end receiving cylinder comprises a receiving cylinder section, a rear-end cone section and a rear-end straight cylinder section which are sequentially connected, a receiving screw is arranged in the receiving cylinder section, a receiving cone screw is arranged in the rear-end cone section, and a discharging screw is arranged in the rear-end straight cylinder section.
In some embodiments of the present invention, the heat conducting ball screening structure includes a conical screen, and an inner reducing heat conducting ball spiral sheet is arranged in the conical screen for separating heat conducting balls from heat regenerating materials, and the heat conducting ball screening structure is sequentially butted with the heat conducting ball recovering structure and the heat regenerating material recovering structure.
In some embodiments of the invention, the heat-carrying ball recycling structure comprises an outer tube and an inner tube, wherein a pushing spiral sheet and a heat-carrying ball spiral sheet are arranged in the outer tube, and a plurality of heat-carrying ball spiral cases are arranged on the tube wall of the outer tube.
In some embodiments of the invention, the regenerative material recovery structure comprises a recovery outer bobbin and a recovery inner bobbin, a push-back thermal mass spiral sheet is arranged between the recovery outer bobbin and the recovery inner bobbin, and a recovery regenerative material volute is further arranged on the recovery outer bobbin.
In some embodiments of the present invention, one end of the heat-carrying ball and heat-regenerating material circulation channel is in butt joint with the heat-carrying ball and heat-regenerating material connection channel, and the other end is in butt joint with the heat-carrying ball and heat-regenerating material outlet structure.
In a second aspect of the present invention, there is provided a pyrolysis method of a heat carrier ball and a regenerative mass cycle, comprising the steps of:
the heated heat-carrying balls and the materials to be pyrolyzed are mixed and then enter a front-end material distribution cylinder, the mixed materials enter the pyrolysis cylinder under the action of the front-end material distribution cylinder, organic wastes undergo pyrolysis reaction under the action of high-temperature hot flue gas and the heat-carrying balls, the mixed materials separate the heat-carrying balls from pyrolyzed regenerative materials through a rear-end material receiving cylinder, and the separated heat-carrying balls and regenerative materials return to the front-end material distribution cylinder through the heat-carrying balls and regenerative material circulation channels to participate in pyrolysis reaction again;
and after all the organic wastes are completely pyrolyzed, separating and recovering the heat-carrying balls and the regenerative material through the ball guide screening device, and finishing pyrolysis of the organic wastes, wherein the recovered heat-carrying balls are reused.
One or more of the technical schemes of the invention has the following beneficial effects:
(1) According to the pyrolysis device for circulating the heat-carrying balls and the heat returning medium, organic wastes are dried by utilizing the synergistic effect of the heat-carrying balls and the heat returning medium generated by pyrolysis, the heating speed is high, and the heating is uniform; the high-temperature heat-carrying ball, the heat return mass and the materials are collided, ground and mixed, so that the coking problem of the traditional pyrolysis device is avoided, and the drying efficiency of the heat return mass is improved.
(2) The pyrolysis device for circulating the heat-carrying balls and the regenerative substances is provided with the ball guide screening structure, the heat-carrying ball recovery structure and the regenerative substance recovery structure, so that the heat-carrying balls and the regenerative substances after pyrolysis can be separated, the heat-carrying balls and the regenerative substances respectively enter different channels for circulation, and the heat exchange efficiency with flue gas is improved.
(3) According to the pyrolysis device for circulating the heat-carrying ball and the heat returning medium, the whole device is in a rotating state, and the circulation of the heat-carrying ball and the heat returning medium is realized through the arrangement of various spiral sheets, so that the heat-carrying ball and the heat returning medium are continuously stirred and mixed with organic wastes while rotating, the materials are heated more uniformly, the coking phenomenon is prevented, and the pyrolysis efficiency is increased.
Drawings
FIG. 1 is a front cross-sectional view of a pyrolysis apparatus for heat-carrying balls and recuperated mass circulation of the present invention;
FIG. 2 is an isometric cross-sectional view of a pyrolysis apparatus for heat-carrying ball and regenerative mass circulation of the present invention;
FIG. 3 is a front cross-sectional view of the front dispensing cartridge of the present invention;
FIG. 4 is an isometric cross-sectional view of the front dispensing cartridge of the present invention;
FIG. 5 is a front cross-sectional view of the pyrolysis cylinder of the present invention;
FIG. 6 is a front cross-sectional view of a heat-carrying ball and regenerative mass circulation channel of the present invention;
FIG. 7 is a front cross-sectional view of the rear-end take-up cylinder of the present invention;
FIG. 8 is an axial cross-sectional view of the rear-end take-up cylinder of the present invention;
FIG. 9 is a front cross-sectional view of a ball guide screening structure of the present invention;
FIG. 10 is an axial cross-sectional view of a ball guide screening structure of the present invention;
FIG. 11 is a front cross-sectional view of the heat carrier ball recovery structure of the present invention;
FIG. 12 is an axial cross-sectional view of the heat carrier ball recovery structure of the present invention;
fig. 13 is a front cross-sectional view of the regenerative mass recovery structure of the present invention;
fig. 14 is an axial side sectional view of the regenerative mass recovery structure of the present invention;
FIG. 15 is an axial cross-sectional view of a heat-carrying ball and heat-regenerating mass connecting channel of the present invention;
fig. 16 is an axial cross-sectional view of the heat carrier sphere and recuperator outlet structure of the present invention.
1. A front end material distributing cylinder; 1.1, a front straight cylinder section; 1.2, a front end supporting ring cylinder; 1.3, a heat insulation layer; 1.4, a fixed end rolling ring; 1.5, driving a large gear; 1.6, a front end cone section; 1.7, a material separating barrel section; 1.8, a front end fixing plate of the pyrolysis cylinder; 1.9, heat-carrying balls; 1.10, a material separating spiral; 1.11, a material separating cone spiral; 1.12, pushing a material spiral; 2. a pyrolysis cylinder; 2.1, connecting the front end with a ring plate; 2.2, pyrolysis bobbin; 2.3, large-pitch spiral sheets; 2.4, small pitch spiral sheets; 2.5, connecting the rear end with a ring plate; 3. the heat-carrying ball and the regenerative heat medium circulating channel; 3.1, a front end fixing plate; 3.2, a first regenerative bobbin; 3.3, a heat-carrying ball channel; 3.4, a first regenerative spiral sheet; 3.5, a rear end fixing plate; 4. a rear end material receiving cylinder; 4.1, a rear straight cylinder section; 4.2, a rear end supporting ring cylinder; 4.3, a heat insulation layer; 4.4, a sliding end rolling ring; 4.5, a rear end cone section; 4.6, a receiving cylinder section; 4.7, fixing the plate at the rear end of the pyrolysis cylinder; 4.8, a rear end circulation channel fixing ring; 4.9, a ball making plate; 4.10, a material receiving spiral; 4.11, a material receiving cone spiral; 4.12, a discharging screw; 5. a ball guiding and screening structure; 5.1, supporting the sieve plate; 5.2, conical screen mesh; 5.3, connecting the fixed plate; 5.4, collecting the annular sieve plate of the heat-carrying ball; 5.5, inner reducing heat-carrying ball spiral sheets; 6. a heat-carrying ball recovery structure; 6.1, a heat-carrying ball butt joint plate; 6.2, an inner cylinder tube; 6.3, connecting the plates; 6.4, pushing the spiral sheet; 6.5, heat conducting and carrying ball spiral sheets; 6.6, heat collecting ball spiral case; 6.7, an outer cylinder tube; 7. a heat recovery structure; 7.1, a regenerative heat butt plate; 7.2, recycling the outer bobbin; 7.3, plugging plates; 7.4, recovering the inner bobbin; 7.5, recovering the regenerative spiral case; 7.6, pushing back the thermal mass spiral sheet; 8. the heat-carrying ball is connected with the heat regenerating material connecting channel; 8.1, butt flange plates; 8.2, a second regenerative bobbin; 8.3, a second regenerative spiral sheet; 8.4, a first spiral coil; 8.5, connecting the heat-carrying balls with a sealing plate; 9. a heat-carrying ball; 10. a heat-carrying ball and heat-returning medium outlet structure; 10.1, butt joint plates; 10.2, a third regenerative mass barrel; 10.3, third regenerative spiral sheet; 10.4, a second spiral coil; and 10.5, sealing the outlet of the heat-carrying ball.
Detailed Description
It should be noted that the following detailed description is illustrative and is intended to provide further explanation of the invention. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
Example 1
In a typical embodiment of the present invention, a pyrolysis device for circulating heat-carrying balls and regenerative heat is provided, as shown in fig. 1 and 2, and includes a front-end distributing cylinder 1, a pyrolysis cylinder 2, a heat-carrying ball and regenerative heat circulation channel 3, and a rear-end receiving cylinder 4, where the front-end distributing cylinder is used for conveying the heat-carrying balls and regenerative heat to the pyrolysis cylinder for drying; the pyrolysis cylinder 2 and the heat-carrying ball and heat-regenerating material circulation channel are used for carrying out rotary drying and circulation on the heat-carrying ball and the heat-regenerating material; the rear end material receiving cylinder is internally provided with a guide ball screening structure 5, a heat-carrying ball recovery structure 6 and a heat recovery structure 7 in sequence, and is used for separating and recovering the heat-carrying balls and the heat recovery materials generated by pyrolysis.
As shown in fig. 3 and 4, the front-end material distributing cylinder 1 comprises a front-end straight cylinder section 1.1, a front-end conical cylinder section 1.6 and a material distributing cylinder section 1.7 which are in butt joint in sequence, a material pushing spiral 1.12 is arranged in the front-end straight cylinder section 1.1, a front-end supporting ring cylinder 1.2 and a heat insulating layer 1.3 are sleeved outside the front-end straight cylinder section 1.1 in sequence, the front-end supporting ring cylinder 1.2 plays a supporting role on the front-end material distributing cylinder 1, the heat insulating layer 1.3 plays a role in heat insulation, heat dissipation is prevented, a fixed end rolling ring 1.4 and a driving large gear 1.5 are arranged outside the heat insulating layer 1.3, the fixed end rolling ring 1.4 is matched with other supporting components, the front-end material distributing cylinder 1 is stably supported in the fixed end rolling ring 1.4, the driving large gear 1.5 is matched with a driving device, power is provided for integral rotation of the pyrolysis device, rotation of the front-end material distributing cylinder 1 is realized, and integral rotation of the pyrolysis device is realized. The front end cone section 1.6 is internally provided with a material separating cone screw 1.11, the material separating section 1.7 is internally provided with a material separating screw 1.10, and under the action of the pushing screw 1.12, the material separating cone screw 1.11 and the material separating screw 1.1, mixed materials enter the pyrolysis cylinder 2 through the front end material separating cylinder 1, and the front end material separating cylinder 1 is connected with the pyrolysis cylinder through a pyrolysis cylinder front end fixing plate 1.8.
As shown in fig. 5, the pyrolysis cylinder 2 includes a front end connection ring plate 2.1 and a rear end connection ring plate 2.5, the front end connection ring plate 2.1 is installed in a pyrolysis cylinder front end fixing plate 1.8, a pyrolysis bobbin 2.2 is arranged between the front end connection ring plate 2.1 and the rear end connection ring plate 2.1, a spiral sheet is arranged in the pyrolysis bobbin 2.2, the spiral sheet includes a large-pitch spiral sheet 2.3 and a small-pitch spiral sheet 2.4, namely, the pitch of the spiral sheet gradually decreases along the advancing direction of the material, under the action of the spiral sheet, the mixed material of the heat-carrying ball and the heat-regenerative material can smoothly pass through the pyrolysis bobbin, and the advancing efficiency of the mixed material is improved in a mode that the pitch gradually decreases due to the reduction of the heat-regenerative mass in the drying pyrolysis process.
As shown in fig. 6, the heat-carrying ball and heat-regenerating material circulation channel 3 includes a front end fixing plate 3.1 and a rear end fixing plate 3.5, a first heat-regenerating material tube 3.2 is disposed between the front end fixing plate 3.1 and the rear end fixing plate 3.5, the pyrolysis tube 2.2 and the first heat-regenerating material tube 3.2 form a circulation channel of heat-regenerating material, a first heat-regenerating material spiral sheet 3.4 is disposed in the heat-regenerating material copper tube, a heat-carrying ball channel 3.3 is disposed outside the heat-regenerating material copper tube, the heat-carrying ball channel 3.3 is a spiral tube, and is coiled outside the heat-regenerating material copper tube, the front end fixing plate 3.1 is mounted in the pyrolysis tube front end fixing plate 1.8, and the pyrolysis tube 2.2 and the spiral tube form a circulation channel of the heat-carrying ball.
In this embodiment, the pyrolysis tube 2.2 is provided with a plurality of pyrolysis tubes, and is circumferentially arranged along the heat-carrying balls and the regenerative heat medium circulation channel 3 to form a plurality of circulation channels, so that the drying efficiency of the regenerative heat medium is improved.
As shown in fig. 7 and 8, the rear-end receiving cylinder 4 comprises a receiving cylinder section 4.6, a rear-end cone section 4.5 and a rear-end straight cylinder section 4.1 which are sequentially received, a pyrolysis cylinder rear-end fixing plate 4.8 is arranged at the end face of the receiving cylinder section 4.6, a rear-end circulating channel fixing ring 4.8 is arranged on the pyrolysis cylinder rear-end fixing plate 4.7, the rear-end circulating channel fixing ring 4.8 is used for fixing a plurality of pyrolysis cylinders 2 and heat-carrying balls and a regenerative heat circulation channel 3, a shoveling plate 4.9 and a receiving spiral 4.10 are arranged in the receiving cylinder section 4.6, the shoveling plate 4.9 can prevent the heat-carrying balls from staying at the bottom of the receiving cylinder section 4.6 in the rotation process, a receiving spiral 4.11 is arranged in the rear-end cone section 4.5, a rear-end supporting ring 4.2 and a heat-insulating layer 4.3 are sequentially sleeved outside the rear-end cone section 4.5, the rear-end supporting ring 4.2 plays a role in supporting the rear-end receiving cylinder 4.6, and the heat-insulating layer is arranged in the receiving cylinder 4.12, and the heat-insulating layer is arranged in the receiving cylinder section 4.12, and the heat-insulating layer is used for keeping the receiving spiral 4.12.
The rear end is received and is provided with in proper order in the material barrel and is led ball screening structure 5, heat carrier ball recovery structure 6 and heat recovery matter recovery structure 7, as shown in fig. 9 and 10, lead ball screening structure 4.5 and be used for carrying heat carrier ball and pyrolysis discarded object and separate, including support sieve 5.1, toper screen cloth 5..3, connection fixed plate 5.3, the heat carrier ball annular sieve 5.4 that connect gradually that set up, set up interior reducing in the toper screen cloth and push away heat carrier ball flight 4.5.5, carry heat carrier ball and heat recovery matter in the mixed material under the effect of lead ball screening structure 4.5 and separate.
As shown in fig. 11 and 12, the heat-carrying ball recovery structure 6 includes a heat-carrying ball butt plate 6.1, an outer barrel pipe 6.7, an inner barrel pipe 6.2 and a connecting plate 6.3 which are sequentially connected, a pushing spiral sheet 6.4 and a heat-carrying ball spiral sheet 6.5 are arranged in the outer barrel pipe 6.7, a plurality of heat-carrying ball spiral cases 6.6 are arranged on the outer wall surface of the outer barrel pipe 6.7, the heat-carrying ball spiral cases 6.6 are communicated with the cavity of the outer barrel pipe 6.7, the heat-carrying ball recovery structure 6 is used for recovering separated heat-carrying balls, and the recovered heat-carrying balls enter the heat-carrying ball spiral cases 6.6.
As shown in fig. 13 and 14, the recycling structure 7 includes a recycling heat butt plate 7.1, a recycling outer tube 7.2, and a blocking plate 7.3, which are sequentially connected, wherein a recycling inner tube 7.4 is disposed in the recycling outer tube 7.2, a pushing heat mass spiral sheet 7.6 is disposed between the recycling outer tube 7.2 and the recycling inner tube 7.4, a plurality of recycling heat mass spiral cases 7.5 are disposed on an outer wall surface of the recycling outer tube 7.2, and the recycling heat mass spiral cases 7.5 are communicated with a cavity between the recycling outer tube 7.2 and the recycling inner tube 7.4 for recycling separated recycling heat mass.
One end of the heat-carrying ball and heat-returning medium circulation channel 3 is in butt joint with the heat-carrying ball and heat-returning medium connection channel 8, the other end of the heat-carrying ball and heat-returning medium circulation channel 8 is in butt joint with the heat-carrying ball and heat-returning medium outlet structure 10, the heat-carrying ball and heat-returning medium connection channel 8 is arranged in the rear-end material receiving cylinder 4, as shown in fig. 15, the heat-carrying ball and heat-returning medium connection channel 8 comprises a heat-carrying ball connection sealing plate 8.5, a second heat-returning medium cylinder 8.2 and a butt flange plate 8.1 which are sequentially connected, a second heat-returning medium spiral sheet 8.3 is arranged in the second heat-returning medium cylinder 8.2, and a first spiral pipe 8.4 is arranged outside the second heat-returning medium cylinder 8.2; the heat-carrying ball and heat-returning medium outlet structure 10 is arranged in the front-end material-distributing cylinder 1, as shown in fig. 16, the heat-carrying ball and heat-returning medium outlet structure 10 comprises a butt plate 10.1, a third heat-returning medium tube 10.2 and a heat-carrying ball outlet sealing plate 10.5 which are sequentially connected, a third heat-returning spiral sheet 10.3 is arranged in the third heat-returning medium tube 10.2, and a second spiral tube 10.4 is arranged outside the third heat-returning medium tube 10.2.
The working principle of the pyrolysis device for circulating the heat-carrying ball and the regenerative medium provided by the embodiment is as follows:
the pyrolysis device with the heat-carrying ball and the heat-returning material circulation is positioned in high-temperature flue gas, the heat-carrying ball and the material to be pyrolyzed are mixed and then enter the front-end material distribution cylinder, under the action of the front-end material distribution cylinder, the mixed material enters the pyrolysis cylinder, under the synergistic effect of the high-temperature flue gas and the heat-carrying ball, the organic waste is subjected to pyrolysis reaction, when the mixed material reaches the rear end part of the pyrolysis cylinder, the heat-carrying ball and the heat-returning material generated by pyrolysis of the organic waste are separated and recycled by the ball guide screening device, the heat-carrying ball enters the heat-carrying ball channel, the heat-returning material enters the heat-returning material tube, the heat-carrying ball and the heat-returning material continuously participate in the pyrolysis reaction and are mixed with the new material to be pyrolyzed, and the new material to be pyrolyzed is mixed and heated in the pyrolysis cylinder, so that the process is continuously circulated. And after all the organic wastes are completely pyrolyzed, separating and recovering the heat-carrying balls and the regenerative material through the ball guide screening device, and performing pyrolysis on the organic wastes, wherein the recovered heat-carrying balls are reused.
Example 2
In an exemplary embodiment of the present invention, a pyrolysis method for circulating heat-carrying balls and regenerative heat medium is provided, which includes the following steps:
the heated heat-carrying balls and the materials to be pyrolyzed are mixed and then enter a front-end material distribution cylinder, the mixed materials enter the pyrolysis cylinder under the action of the front-end material distribution cylinder, organic wastes undergo pyrolysis reaction under the action of high-temperature hot flue gas and the heat-carrying balls, the mixed materials separate the heat-carrying balls from pyrolyzed regenerative materials through a rear-end material receiving cylinder, and the separated heat-carrying balls and regenerative materials return to the front-end material distribution cylinder through the heat-carrying balls and regenerative material circulation channels to participate in pyrolysis reaction again;
and after all the organic wastes are completely pyrolyzed, separating and recovering the heat-carrying balls and the regenerative substances through the ball guide screening device, and finishing pyrolysis of the organic wastes, wherein the recovered heat-carrying balls are reused.
While the foregoing embodiments have been described in detail in connection with the embodiments of the invention, it should be understood that the foregoing embodiments are merely illustrative of the invention and are not intended to limit the invention, and any modifications, additions, substitutions and the like made within the principles of the invention are intended to be included within the scope of the invention.
Claims (10)
1. The pyrolysis device for circulating the heat-carrying balls and the regenerative substances is characterized by comprising a front-end material distributing cylinder, a circulating channel and a rear-end material receiving cylinder which are sequentially connected; the circulating channel comprises a pyrolysis cylinder, a heat-carrying ball and a regenerative heat circulating channel, and a ball guide screening structure, a heat-carrying ball recovery structure and a regenerative heat recovery structure are sequentially arranged in the rear-end material receiving cylinder;
the heat-carrying ball and the material to be pyrolyzed enter the pyrolysis cylinder body through the front-end material distributing cylinder body, the material to be pyrolyzed is rotationally pyrolyzed in the pyrolysis cylinder body, then the heat-carrying ball and the regenerative material generated by pyrolysis are separated through the rear-end material collecting cylinder body, and the separated heat-carrying ball and regenerative material return to the front-end material distributing cylinder body through the heat-carrying ball and regenerative material circulating channel to participate in pyrolysis reaction again.
2. The pyrolysis device for heat carrier balls and regenerative media circulation according to claim 1, wherein the front-end material distributing cylinder body comprises a front-end straight cylinder section, a front-end cone cylinder section and a material distributing cylinder section which are sequentially in butt joint, a pushing screw is arranged in the front-end straight cylinder section, a material distributing cone screw is arranged in the front-end cone cylinder section, and a material distributing screw is arranged in the material distributing cylinder section.
3. The pyrolysis device for circulating heat carrier balls and regenerative heat medium according to claim 1, wherein the pyrolysis cylinder comprises a front end connecting annular plate and a rear end connecting annular plate, a pyrolysis tube is arranged between the front end connecting annular plate and the rear end connecting annular plate, a spiral sheet is arranged in the pyrolysis tube, and the pitch of the spiral sheet is gradually reduced along the advancing direction of the material.
4. The pyrolysis device for heat carrier balls and regenerative heat circulation according to claim 1, wherein the heat carrier balls and regenerative heat circulation channel comprises a front end fixing plate and a rear end fixing plate, a regenerative heat pipe is arranged between the front end fixing plate and the rear end fixing plate, a regenerative heat screw plate is arranged in the regenerative heat pipe, and a spiral pipe is arranged outside the pyrolysis pipe.
5. The pyrolysis device for heat carrier ball and regenerative mass circulation according to claim 1, wherein the rear-end receiving cylinder comprises a receiving cylinder section, a rear-end cone section and a rear-end straight cylinder section which are sequentially received, a receiving screw is arranged in the receiving cylinder section, a receiving cone screw is arranged in the rear-end cone section, and a discharging screw is arranged in the rear-end straight cylinder section.
6. The pyrolysis device for circulation of heat carrier balls and regenerative media of claim 1, wherein the ball guiding and screening structure comprises a conical screen, and an inner reducing pushing heat carrier ball spiral sheet is arranged in the conical screen and is used for separating the heat carrier balls from the regenerative media, and the ball guiding and screening structure is sequentially butted with the heat carrier ball recovery structure and the regenerative media recovery structure.
7. The pyrolysis device for heat carrier and heat recovery medium circulation according to claim 6, wherein the heat carrier recovery structure comprises an outer tube and an inner tube, wherein a pushing spiral sheet and a heat carrier spiral sheet are arranged in the outer tube, and a plurality of heat carrier spiral cases are arranged on the tube wall of the outer tube.
8. The pyrolysis apparatus for heat carrier balls and regenerative heat circulation according to claim 6, wherein the regenerative heat recovery structure comprises a recovery outer bobbin and a recovery inner bobbin, a push-back heat mass spiral sheet is arranged between the recovery outer bobbin and the recovery inner bobbin, and a recovery regenerative heat volute is further arranged on the recovery outer bobbin.
9. The thermal pyrolysis device of heat carrier balls and regenerative mass circulation of claim 1, wherein one end of the heat carrier balls and regenerative mass circulation channel is in butt joint with the heat carrier balls and regenerative mass connection channel, and the other end is in butt joint with the heat carrier balls and regenerative mass outlet structure.
10. A method for drying heat-carrying balls and heat-returning medium circulation, which is realized by a pyrolysis device according to any one of claims 1 to 9, and is characterized by comprising the following steps:
the heated heat-carrying balls and the materials to be pyrolyzed are mixed and then enter a front-end material distribution cylinder, the mixed materials enter the pyrolysis cylinder under the action of the front-end material distribution cylinder, organic wastes undergo pyrolysis reaction under the action of high-temperature hot flue gas and the heat-carrying balls, the mixed materials separate the heat-carrying balls from pyrolyzed regenerative materials through a rear-end material receiving cylinder, and the separated heat-carrying balls and regenerative materials return to the front-end material distribution cylinder through the heat-carrying balls and regenerative material circulation channels to participate in pyrolysis reaction again;
and after all the organic wastes are completely pyrolyzed, separating and recovering the heat-carrying balls and the regenerative material through the ball guide screening device, and finishing pyrolysis of the organic wastes, wherein the recovered heat-carrying balls are reused.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310149801.3A CN116396768A (en) | 2023-02-21 | 2023-02-21 | Pyrolysis device and method for heat-carrying ball and regenerative medium circulation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310149801.3A CN116396768A (en) | 2023-02-21 | 2023-02-21 | Pyrolysis device and method for heat-carrying ball and regenerative medium circulation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116396768A true CN116396768A (en) | 2023-07-07 |
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ID=87016779
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310149801.3A Pending CN116396768A (en) | 2023-02-21 | 2023-02-21 | Pyrolysis device and method for heat-carrying ball and regenerative medium circulation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116396768A (en) |
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2023
- 2023-02-21 CN CN202310149801.3A patent/CN116396768A/en active Pending
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