CN214612291U - Continuously-operated pyrolysis and drying device and multistage pyrolysis and drying device - Google Patents

Abstract

The utility model relates to a continuously operating pyrolysis and drying device and a multi-stage pyrolysis and drying device, which comprises a furnace body, wherein a smoke inlet and a smoke outlet are respectively arranged on the furnace body, and a pyrolysis and drying container is arranged in the furnace body; pyrolysis and stoving container are including the multistage heat conduction barrel that sets up from top to bottom, set up the rotor of stirring pyrolysis and stoving material in every level heat conduction barrel, set up the feed inlet of putting into the material of treating pyrolysis and stoving respectively in the furnace body outside, the outlet duct of the pipe of slagging tap and emission pyrolysis and the stoving gas of pyrolysis and stoving after-residue, treat that pyrolysis and stoving material down pass through the heat conduction barrel of multistage setting respectively from last, under the effect of every level rotor thermally equivalent and accomplish in proper order and preheat, stoving, the intensification, the pyrolysis process, pyrolysis and stoving gas are discharged from the outlet duct, material after pyrolysis and stoving is discharged from the pipe of slagging tap. The utility model discloses a material pyrolysis and stoving are gone on under the environment of absolute oxygen, improve pyrolysis and drying efficiency, improve pyrolysis and stoving result productivity.

Description

Continuously-operated pyrolysis and drying device and multistage pyrolysis and drying device

Technical Field

The utility model belongs to the technical field of pyrolysis and stoving, in particular to continuous operation's pyrolysis and drying device and multistage pyrolysis and drying device.

Background

Existing pyrolysis equipment generally falls into two forms: discontinuous and continuous. The intermittent pyrolysis equipment pyrolyzes the material to be pyrolyzed in batches, and the pyrolysis process cannot be continuously operated, so that the energy consumption is greatly wasted; meanwhile, the pyrolysis gas is discharged when the material is stable at a certain temperature, so that the discharge of the pyrolysis gas of the intermittent pyrolysis equipment is released intermittently, instantly, suddenly and massively, but not continuously and stably, which brings great adverse effects to subsequent matching equipment. The biggest problem of the existing continuous pyrolysis equipment, such as rotary kilns and spiral barrels, is that complete oxygen insulation cannot be achieved. The prior art is in need of further improvement.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a pyrolysis and drying device and multistage pyrolysis and drying device of continuous operation are provided, not only can the pyrolysis material also dry the material for material pyrolysis and stoving are gone on under the environment of oxygen-free, improve pyrolysis and drying efficiency, improve pyrolysis and stoving result productivity.

The utility model is realized in such a way, the utility model provides a continuous operation pyrolysis and drying device, which comprises a furnace body, wherein a smoke inlet of high-temperature smoke communicated with a burner and a smoke outlet for discharging low-temperature smoke are respectively arranged on the furnace body, and a pyrolysis and drying container is arranged in the furnace body; the pyrolysis and drying container comprises a plurality of stages of heat-conducting cylinders which are arranged up and down, rotors for stirring pyrolysis and drying materials are arranged in each stage of heat-conducting cylinder, the rotors in each stage of heat-conducting cylinder are arranged on the same rotating shaft, a transmission assembly is connected at the upper end of the rotating shaft, the transmission assembly is positioned outside the furnace body and drives the rotating shaft to drive each stage of rotors to rotate simultaneously, an upper cover plate is arranged at the top of each stage of heat-conducting cylinder, a discharge cylinder and a lower cover plate are respectively arranged between the adjacent two stages of heat-conducting cylinders, an upper cover plate blanking port, a lower cover plate blanking port and a cylinder blanking port are respectively arranged on the upper cover plate and the lower cover plate and at the bottom of the heat-conducting cylinder, the upper cover plate of the stage is fixedly connected with the upper cover plate of the adjacent upper stage, the upper cover plate at the top is fixedly connected with the furnace body, the lower cover plate blanking port and the cylinder blanking port are mutually communicated through the discharge cylinder, and the upper cover plate blanking port and the cylinder blanking port are mutually staggered, the upper cover plate blanking port of this level directly communicates rather than the lower cover plate blanking port of adjacent last level, sets up the feed inlet of input waiting pyrolysis and drying material, the pipe of slagging tap of pyrolysis and the back material of drying and the outlet duct of emission pyrolysis and stoving gas respectively in the furnace body outside, and feed inlet and outlet duct pass the upper cover plate blanking port that is located the upper portion and communicate with the heat conduction barrel of its lower part, and the pipe of slagging tap directly communicates with the barrel blanking port that is located the heat conduction barrel of the lower part.

Further, still be provided with sealed cooling module in the upper end of pivot, sealed cooling module is located transmission assembly's below, sealed cooling module includes sealed dish, sealing ring, outlet pipe, inlet tube, and sealed dish cup joints respectively in the pivot with the sealing ring, forms labyrinth seal between sealed dish and sealing ring, and the inlet tube setting is in the below of outlet pipe.

Further, still set up seamless connection pipe between adjacent two-stage heat conduction barrel, set up the barrel hole in the bottom surface of heat conduction barrel, set up the apron hole on the upper cover plate, set up the apron hole down on the apron down, seamless connection pipe's upper end and barrel hole intercommunication, its lower extreme through the apron hole down with the heat conduction barrel intercommunication of next stage behind the last apron hole of next stage, form pyrolysis and stoving gas passageway.

Further, the rotor includes hub, interior ring and outer ring, and hub cup joints in the pivot, sets up a plurality of webs between hub and the interior ring of changeing, including a plurality of baffles between ring and the outer ring, interior ring, outer ring and a plurality of baffles constitute a plurality of storage spaces of the pyrolysis of keeping in and stoving material respectively.

Furthermore, the seamless connecting pipe is arranged along the axis of the heat-conducting cylinder, a plurality of guide vanes are further arranged between the heat-conducting cylinder and the lower cover plate, and the guide vanes are arranged at the outer side part of the seamless connecting pipe.

Furthermore, the smoke inlet and the smoke outlet are respectively arranged along the tangential direction of the furnace body.

Furthermore, pyrolysis and drying materials in the storage space of the rotor rotate for a week along with the rotor and then enter the discharging barrel from the barrel blanking port, and then enter the storage space of the next-stage rotor from the lower cover plate blanking port of the current stage and the upper cover plate blanking port of the next stage, or the pyrolysis and drying materials in the storage space of the rotor rotate for a week along with the rotor and then enter the slag discharging pipe and are discharged out of the furnace body.

Further, the rotor is connected with the rotating shaft in a floating mode, the rotor moves freely in the axial direction, the attachment of the rotor and the lower cover plate is guaranteed, and meanwhile the influence of expansion with heat and contraction with cold of the transmission shaft is eliminated.

Further, the transmission assembly is fixed outside the furnace body through a frame. According to the moisture content and the performance of the material to be pyrolyzed and dried, the residence time of the material to be pyrolyzed and dried in the equipment can be accurately controlled through the adjustment of the rotating speed of the transmission assembly.

The utility model discloses a realize like this, still provide a multistage pyrolysis and drying device, including a plurality of as before continuous operation's pyrolysis and drying device, every continuous operation's pyrolysis and drying device concatenate together in proper order, wherein, first continuous operation's pyrolysis and drying device's slag pipe and second continuous operation's pyrolysis and drying device's feed inlet intercommunication, second continuous operation's pyrolysis and drying device's slag pipe and third continuous operation's pyrolysis and drying device's feed inlet intercommunication, analogize in proper order.

Compared with the prior art, the utility model discloses a continuous operation's pyrolysis and drying device and multistage pyrolysis and drying device, set up pyrolysis and drying container in the furnace body, pyrolysis and drying container are including the multistage heat conduction barrel that sets up from top to bottom, set up the rotor of stirring pyrolysis and drying material in every grade of heat conduction barrel, treat that pyrolysis and drying material from the last heat conduction barrel that down passes through multistage setting respectively in proper order, under the effect of every grade of rotor thermally equivalent and accomplish in proper order and preheat, stoving, heat up, the pyrolysis process, pyrolysis and stoving gas are discharged from the outlet duct, material after pyrolysis and stoving is discharged from the pipe of slagging tap. The whole process is operated continuously, and stable pyrolysis and drying gas with high heat value is continuously provided. The utility model provides a sealed, the oxygen leakage problem of current continuous type pyrolysis equipment, material pyrolysis and stoving are gone on under the environment of oxygen-free, improve pyrolysis and drying efficiency, improve pyrolysis and stoving result productivity, energy saving consumed the festival.

Drawings

FIG. 1 is a schematic structural diagram of a preferred embodiment of the present invention;

FIG. 2 is a schematic view of the seal cooling assembly of FIG. 1 mounted on a rotating shaft;

FIG. 3 is a front sectional view of the heat-conducting cylinder, the seamless connection tube, the discharge cylinder, the guide vane and the lower cover plate in FIG. 1;

FIG. 4 is a top view of FIG. 3;

fig. 5 is a front view of the rotor of fig. 1.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1, fig. 2, fig. 3 and fig. 4, the preferred embodiment of the continuous operation pyrolysis and drying apparatus of the present invention includes a furnace body 1, and a flue gas inlet 3 for high temperature flue gas and a flue gas outlet 4 for low temperature flue gas, which are communicated with a burner 2, are respectively disposed on the furnace body 1. The smoke inlet 3 and the smoke outlet 4 are respectively communicated with the inside of the furnace body 1, the smoke inlet 3 is positioned at the lower part of the furnace body 1, and the smoke outlet 4 is positioned at the upper part of the furnace body 1.

A pyrolysis and drying container 5 is provided in the furnace body 1. The pyrolysis and drying container 5 is made of a heat conductive and high temperature resistant material. The high-heat smoke pyrolyzes and dries the materials to be pyrolyzed and dried in the pyrolysis and drying container 5 through the outer wall of the pyrolysis and drying container. The pyrolysis and drying container 5 includes a multi-stage heat-conductive cylinder 6 disposed up and down. The pyrolysis and drying materials are temporarily stored in the heat-conducting cylinder 6 of each stage. A rotor 7 for stirring, pyrolyzing and drying materials is arranged in each stage of heat-conducting cylinder 6, and the rotor 7 in each stage of heat-conducting cylinder 6 is arranged on the same rotating shaft 8.

The upper end of the rotating shaft 8 is respectively connected with a sealing cooling assembly 9 and a transmission assembly 10. The seal cooling assembly 9 is located below the drive assembly 10. The sealed cooling assembly 9 and the transmission assembly 10 are located outside the furnace body 1.

The seal cooling assembly 9 comprises a seal disc 91, a seal ring 92, a water outlet pipe 93 and a water inlet pipe 94. The sealing disc 91 and the sealing ring 92 are respectively sleeved on the rotating shaft 8, a labyrinth is formed between the sealing disc 91 and the sealing ring 92, and the water inlet pipe 94 is arranged below the water outlet pipe 93. The seal disc 91 is filled with water to seal the shaft 8 and cool it. The transmission assembly 10 drives the rotating shaft 8 to drive the rotor 7 of each stage to rotate simultaneously.

An upper cover plate 11 is arranged at the top of each stage of heat-conducting cylinder 6, and a discharge cylinder 12 and a lower cover plate 13 are respectively arranged between two adjacent stages of heat-conducting cylinders 6. An upper cover plate blanking port 14, a lower cover plate blanking port 15 and a cylinder blanking port 16 are respectively arranged on the upper cover plate 11 and the lower cover plate 13 and at the bottom of the heat-conducting cylinder 6, the upper end of the discharging cylinder 12 is communicated with the cylinder blanking port 16, and the lower end of the discharging cylinder is communicated with the lower cover plate blanking port 15. The upper cover plate 11 of the stage is fixedly connected with the lower cover plate 13 of the adjacent upper stage through a plurality of bolts 17, the upper cover plate 11 positioned at the top is fixedly connected with the furnace body 1 through a plurality of bolts 17, and the pyrolysis and drying container 5 is fixed at the top of the furnace body 1. The lower cover plate blanking port 15 and the barrel blanking port 16 are communicated with each other through the discharging barrel 12, and the upper cover plate blanking port 14 and the barrel blanking port 16 are staggered with each other. The upper cover plate blanking port 14 of the stage is directly communicated with the lower cover plate blanking port 15 of the adjacent upper stage.

A feeding hole 18 for feeding materials to be pyrolyzed and dried, a slag discharging pipe 19 for discharging the pyrolyzed and dried materials, and an air outlet pipe 20 for discharging the pyrolyzed and dried gas are respectively arranged outside the furnace body 1. The feed inlet 18 and the air outlet pipe 20 penetrate through the upper cover plate blanking port 14 of the upper cover plate 11 positioned at the uppermost part to be communicated with the heat conduction cylinder 6 positioned at the lower part, and the slag outlet pipe 19 is directly communicated with the cylinder blanking port 16 of the heat conduction cylinder 6 positioned at the lowermost part. The discharged pyrolysis gas can be used as energy.

Still set up seamless connection pipe 21 between adjacent two-stage heat conduction barrel 6, set up barrel hole 22 in the bottom surface of heat conduction barrel 6, set up upper cover plate hole 23 on upper cover plate 11, set up lower cover plate hole 24 on apron 13 down, seamless connection pipe 21's upper end and barrel hole 22 intercommunication, its lower extreme communicates with the heat conduction barrel 6 of next stage behind upper cover plate hole 23 of next stage through lower cover plate hole 24 and the upper cover plate hole 23 of next stage. In this embodiment, the upper cover plate hole 23 and the upper cover plate blanking port 14 are identical to each other, and the cylinder hole 22 and the lower cover plate hole 24 are the same in size.

Referring to fig. 1 and 5, the rotor 7 includes a hub 71, an inner ring 72, and an outer ring 73. The rotating hub 71 is sleeved on the rotating shaft 8. Between the hub 71 and the inner ring 72, webs 74 and between the inner ring 72 and the outer ring 73, spacers 75 are provided. The inner ring 72, the outer ring 73 and the plurality of partition plates 75 respectively form a plurality of storage spaces A for temporarily storing pyrolysis and drying materials. The bottom surface of the storage space A is the lower wall of the heat conduction cylinder body 6, and the pyrolysis and drying materials in the high-temperature flue gas are pyrolyzed and dried through the lower wall of each stage of heat conduction cylinder body 6. In the present embodiment, the inner diameter of the inner ring 72 is equal to the inner diameter of the seamless connection pipe 21.

Referring to fig. 1, 2, 3 and 4, the chamber blanking opening 16 is disposed on the lower wall of the heat-conducting cylinder 6 between the inner ring 72 and the outer ring 73.

The seamless connecting pipe 21 is arranged along the axis of the heat-conducting cylinder 6, and a plurality of guide vanes 25 are arranged between the heat-conducting cylinder 6 and the lower cover plate 13. The guide vanes 25 are arranged at the outer side part of the seamless connecting pipe 21, and the guide vanes 25 guide the high-heat smoke to the heat-conducting cylinder 6 at the upper stage in a spiral rising manner.

The smoke inlet 3 and the smoke outlet 4 are respectively arranged along the tangential direction of the furnace body 1, high-temperature smoke enters the furnace body 1 along the tangential direction of the furnace body 1, and low-temperature smoke is discharged out of the furnace body 1 along the tangential direction of the furnace body 1. The flue gas heats the pyrolysis and drying container 5 in the rising process, and exchanges heat with pyrolysis and drying materials in the pyrolysis and drying container, so that the pyrolysis and drying materials are pyrolyzed and dried.

Pyrolysis and drying materials in the storage space B of the rotor 7 rotate for a circle along with the rotor 7 and then enter the discharging barrel 12 from the barrel blanking port 16, and then enter the storage space B of the next-stage rotor 7 from the lower cover plate blanking port 15 of the current stage and the upper cover plate blanking port 14 of the next stage, or the pyrolysis and drying materials in the storage space B of the rotor 7 rotate for a circle along with the rotor and then enter the slag discharging pipe 19 and are discharged out of the furnace body 1 from the barrel blanking port 16. The overall dimension of storage space B is less than the overall dimension of barrel blanking mouth 16, and the pyrolysis and the stoving material of storage space B of being convenient for are all fallen into play feed cylinder 12 through barrel blanking mouth 16 dead weight.

The rotor 7 is connected with the rotating shaft 8 in a floating mode, and the rotor can move freely in the axial direction and is not fixed.

The transmission assembly 10 is fixed outside the furnace body 1 through a frame 26.

The utility model discloses a working process does: the material to be pyrolyzed and dried enters the rotor 7 in the uppermost heat-conducting cylinder 6 from the upper feed port 18, the rotor 7 is driven to rotate by the transmission assembly 10 through the rotating shaft 8, and the pyrolyzed and dried material enters the rotor 7 in the next heat-conducting cylinder 6 after rotating for a circle along with the rotor 7 in the storage space A of the rotor 7. The high temperature flue gas that 2 combustors produced gets into furnace body 1 internal back rotation from the inlet 3 of the lower part of furnace body and rises, heat multistage heat conduction barrel 6, pyrolysis and drying material carry out the heat exchange with the high temperature flue gas in multistage heat conduction barrel 6, accomplish in proper order and preheat, dry, the intensification, pyrolysis work, pyrolysis and stoving gas are discharged by the outlet duct 20 of pyrolysis and stoving gas from the barrel hole 22 at heat conduction barrel 6 middle part, material after pyrolysis and stoving is discharged from slag pipe 19. The high calorific value pyrolysis gas can be used as energy. The structure of the device is formed to ensure that the pyrolysis and drying materials are subjected to anaerobic pyrolysis and drying in a high-temperature area at the bottom of the pyrolysis and drying container 5.

The utility model discloses still disclose a multistage pyrolysis and drying device, including a plurality of as before continuous operation's pyrolysis and drying device, every continuous operation's pyrolysis and drying device loop through the intermediate junction pipe and concatenate together, wherein, first continuous operation's pyrolysis and drying device's slag pipe communicates through an intermediate junction pipe and second continuous operation's pyrolysis and drying device's feed inlet, second continuous operation's pyrolysis and drying device's slag pipe communicates through another intermediate junction pipe and third continuous operation's pyrolysis and drying device's feed inlet, analogize in proper order.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims (10)

1. A continuously operated pyrolysis and drying device comprises a furnace body, and is characterized in that a smoke inlet for high-temperature smoke and a smoke outlet for discharging low-temperature smoke which are communicated with a burner are respectively arranged on the furnace body, and a pyrolysis and drying container is arranged in the furnace body; the pyrolysis and drying container comprises a plurality of stages of heat-conducting cylinders which are arranged up and down, rotors for stirring pyrolysis and drying materials are arranged in each stage of heat-conducting cylinder, the rotors in each stage of heat-conducting cylinder are arranged on the same rotating shaft, a transmission assembly is connected at the upper end of the rotating shaft, the transmission assembly is positioned outside the furnace body and drives the rotating shaft to drive each stage of rotors to rotate simultaneously, an upper cover plate is arranged at the top of each stage of heat-conducting cylinder, a discharge cylinder and a lower cover plate are respectively arranged between the adjacent two stages of heat-conducting cylinders, an upper cover plate blanking port, a lower cover plate blanking port and a cylinder blanking port are respectively arranged on the upper cover plate and the lower cover plate and at the bottom of the heat-conducting cylinder, the upper cover plate of the stage is fixedly connected with the upper cover plate of the adjacent upper stage, the upper cover plate at the top is fixedly connected with the furnace body, the lower cover plate blanking port and the cylinder blanking port are mutually communicated through the discharge cylinder, and the upper cover plate blanking port and the cylinder blanking port are mutually staggered, the upper cover plate blanking port of this level directly communicates rather than the lower cover plate blanking port of adjacent last level, sets up the feed inlet of input waiting pyrolysis and drying material, the pipe of slagging tap of pyrolysis and the back material of drying and the outlet duct of emission pyrolysis and stoving gas respectively in the furnace body outside, and feed inlet and outlet duct pass the upper cover plate blanking port that is located the upper portion and communicate with the heat conduction barrel of its lower part, and the pipe of slagging tap directly communicates with the barrel blanking port that is located the heat conduction barrel of the lower part.

2. The pyrolysis and drying apparatus as claimed in claim 1, wherein a sealing and cooling assembly is further disposed at an upper end of the rotary shaft, the sealing and cooling assembly is disposed below the transmission assembly, the sealing and cooling assembly comprises a sealing disc, a sealing ring, a water outlet pipe and a water inlet pipe, the sealing disc and the sealing ring are respectively sleeved on the rotary shaft, a labyrinth is formed between the sealing disc and the sealing ring, and the water inlet pipe is disposed below the water outlet pipe.

3. The continuous pyrolysis and drying apparatus as claimed in claim 1, wherein a seamless connection pipe is further provided between adjacent two stages of heat transfer cylinders, a cylinder hole is provided on a bottom surface of the heat transfer cylinder, an upper cover plate hole is provided on the upper cover plate, a lower cover plate hole is provided on the lower cover plate, an upper end of the seamless connection pipe is communicated with the cylinder hole, and a lower end thereof is communicated with the heat transfer cylinder of the next stage after passing through the lower cover plate hole and the upper cover plate hole of the next stage.

4. The continuous pyrolysis and drying apparatus of claim 3, wherein the rotor comprises a rotating hub, an inner ring and an outer ring, the rotating hub is sleeved on the rotating shaft, a plurality of webs are arranged between the rotating hub and the inner ring, a plurality of partition plates are arranged between the inner ring and the outer ring, and the inner ring, the outer ring and the plurality of partition plates respectively form a plurality of storage spaces for temporarily storing the pyrolysis and drying materials.

5. The continuous pyrolysis and drying apparatus of claim 3, wherein the seamless connection pipe is disposed along an axis of the heat transfer cylinder, and a plurality of guide vanes are further disposed between the heat transfer cylinder and the lower cover plate, the plurality of guide vanes being disposed at an outer side portion of the seamless connection pipe.

6. The continuous pyrolysis and drying apparatus of claim 1, wherein the smoke inlet and the smoke outlet are respectively provided in a tangential direction of the furnace body.

7. The continuous pyrolysis and drying apparatus of claim 1, wherein the pyrolysis and drying material in the storage space of the rotor enters the discharge drum from the drum blanking opening after one rotation of the rotor, and then enters the storage space of the rotor of the next stage from the lower cover plate blanking opening of the current stage and the upper cover plate blanking opening of the next stage, or the pyrolysis and drying material in the storage space of the rotor enters the slag pipe from the drum blanking opening after one rotation of the rotor and is discharged out of the furnace body.

8. The continuous motion pyrolysis and drying apparatus of claim 1 wherein the rotor is in floating connection with the shaft and is free to move axially.

9. The continuously operating pyrolysis and drying apparatus of claim 1 wherein the drive assembly is secured outside the furnace body by a frame.

10. A multi-stage pyrolysis and drying apparatus comprising a plurality of continuously operating pyrolysis and drying apparatus according to any one of claims 1 to 9, each continuously operating pyrolysis and drying apparatus being connected in series in turn, wherein the tap hole of a first continuously operating pyrolysis and drying apparatus is in communication with the feed inlet of a second continuously operating pyrolysis and drying apparatus, the tap hole of the second continuously operating pyrolysis and drying apparatus is in communication with the feed inlet of a third continuously operating pyrolysis and drying apparatus, and so on.

Images