CN112094655A

CN112094655A - Ultralong biomass pyrolysis furnace

Info

Publication number: CN112094655A
Application number: CN202010709873.5A
Authority: CN
Inventors: 杜占军
Original assignee: Ningxia Jierun Biotechnology Co ltd
Current assignee: Ningxia Jierun Biotechnology Co ltd
Priority date: 2020-07-22
Filing date: 2020-07-22
Publication date: 2020-12-18

Abstract

The invention provides an ultralong biomass pyrolysis furnace, which comprises: a retort for splendid attire carbomorphism raw materials sets up in the heated warehouses of retort below, the rotatory drive arrangement of drive retort for support retort's fixed stay wheelset and removal support wheelset, the retort includes: inside first furnace body and the second furnace body that link up, first furnace body and second furnace body need a set of fixed support wheelset and a set of removal support wheelset respectively to support do, can once only carry out the pyrolysis at more biomass raw materials of splendid attire in the carbomorphism stove.

Description

Ultralong biomass pyrolysis furnace

Technical Field

The invention relates to a biomass pyrolysis furnace, in particular to an ultralong biomass pyrolysis furnace.

Background

Biomass pyrolysis is a process of converting biomass into low molecular substances such as charcoal, liquid and gas by thermochemical conversion, and biomass pyrolysis technology is a way of most effectively utilizing biomass energy. Biomass pyrolysis refers to a process of heating biomass to about 550 ℃ under the condition of no oxygen or limited oxygen to mainly convert the biomass into pyrolysis oil and pyrolysis gas, and a pyrolysis furnace is the key of a biomass pyrolysis technology.

The biomass pyrolysis furnace used for producing charcoal and byproducts in the prior art has the advantages that the furnace body is a single-tube furnace, the length of the single tube is not too long, the deflection of the furnace body is large if the length is too long, the single-tube furnace is easy to deform, the furnace shape yield is low, the production efficiency is low, high yield is achieved, a plurality of biomass pyrolysis furnaces are required to be installed in a workshop, the whole occupied area is large, and more pipelines and production workers are required.

Disclosure of Invention

The invention provides an ultralong biomass pyrolysis furnace for solving the problems in the prior art.

This pyrolysis oven includes: a retort for splendid attire carbomorphism raw materials sets up in the heated warehouses of retort below, the rotatory drive arrangement of drive retort for support retort's fixed stay wheelset and removal support wheelset, wherein, retort includes: the first furnace body and the second furnace body are communicated inside, and the first furnace body and the second furnace body are respectively supported by a group of fixed supporting wheel sets and a group of movable supporting wheel sets.

Furthermore, a driven large gear fixedly arranged on the outer circles of the first furnace body and the second furnace body is respectively meshed with a first driving gear and a second driving gear on the driving device, the speed reduction motor drives the second driving gear to rotate, and the first driving gear and the second driving gear are connected through a universal transmission device, so that the second driving gear and the first driving gear can synchronously rotate.

Furthermore, the fixed supporting wheel set supports one end of the furnace body, on which the driven gearwheel is arranged, and the movable supporting wheel set supports the other end of the furnace body, which is far away from the driven gearwheel. Because power is transmitted through the gear, the closer to the gear, the better the coaxiality of the furnace body, and therefore, the fixed supporting wheel set is arranged at the end close to the furnace body, which is provided with the driven large gear, and the movable supporting wheel set with compensation capacity is arranged at the far end with larger error in coaxiality, on the furnace body.

Furthermore, the fixed supporting wheel set and the movable supporting wheel set are in rolling contact with the furnace body through cylindrical steel rollers on two sides, the movable supporting wheel set can move on the guide rail through rolling I-shaped rollers arranged below, and the direction of the guide rail is perpendicular to the rotation center of the carbonization furnace.

Furthermore, still be equipped with the blast pipe on the second furnace body, between blast pipe and the second furnace body, all connect through sealing device between first furnace body and the second furnace body to guarantee that retort when gyration, inside combustible gas can not take place to leak.

Furthermore, the feeding end of the first furnace body is also provided with a furnace cover, and the furnace cover is provided with a lifting ring for lifting during furnace opening.

Further, the heating chamber comprises: the natural gas supply pipe extends out of the natural gas supply pipe, the opening of the natural gas supply pipe faces to the plurality of combustion ports at the bottom of the carbonization furnace, and the natural gas supply pipe is used for surrounding a fireproof cover of the combustion ports, so that heat is prevented from being diffused outwards, other devices near the heating bin are protected from being roasted by high temperature, and the fireproof cover is preferably made of high-temperature-resistant fireproof materials.

Further, the natural gas supply pipe still communicates with the combustible gas return line, the combustible gas return line is connected with the output of condenser group, condenser group and blast pipe intercommunication, heating start-up stage need provide the natural gas through the natural gas supply pipeline and heat, biomass in the furnace body is heated to behind the uniform temperature, can release combustible organic gas, combustible gas who will generate passes through pipeline tieback to the supply line, realize energy recuperation and utilize, original natural gas supply pipeline can be closed this moment, only utilize the gas that generates in the furnace body to heat self and can accomplish the pyrolysis of biomass.

The invention has the technical effects that: two sections of single-tube furnace bodies are connected into an overlong through furnace through a sealing device, the capacity of single furnace opening is increased, the sealing device cannot transmit torque, and the sealing performance of a butt joint part during rotation is only guaranteed. The driven large gears are respectively arranged on the outer rings of the two furnace bodies, and the two driving gears on the driving device are respectively meshed with the driven large gears and drive the furnace bodies to rotate. The coaxial error between the first furnace body and the second furnace body is compensated through the universal transmission device between the two driving gears, and the problem of overlarge disturbance caused by the use of an overlong integrated furnace body is avoided. The first furnace body and the second furnace body respectively use a group of fixed supporting wheel sets and a group of movable supporting wheel sets to respectively roll and support the two ends of the furnace body, wherein the fixed supporting wheel sets are arranged at positions, close to the driven large gear, of the furnace body as far as possible, the movable supporting wheel sets are arranged at the other ends of the furnace bodies, the coaxial errors caused by manufacturing of the single furnace bodies can be compensated, and under the condition of an original manufacturing process, the longer single furnace bodies are allowed to be used for butt joint, so that the length of the whole pyrolysis furnace is further increased, and the manufacturing and installation difficulty and the cost of the single furnace bodies cannot.

Drawings

FIG. 1 is an isometric view of a pyrolysis furnace of the present invention;

FIG. 2 is a front view of the pyrolysis furnace of the present invention.

In the figure, 1, a carbonization furnace, 2, a condenser group, 3, a driving device, 4, an exhaust pipe, 5, 6, a fixed supporting wheel group, 7, a movable supporting wheel group, 8, a heating bin, 11, a first furnace body, 12, a second furnace body, 13, a sealing device, 14, a driven big gear, 15, a lifting ring, 16, a furnace cover, 31, a speed reducing motor, 32, a second driving gear, 33, a first driving gear, 34, a universal transmission device, 71, a guide rail, 72, a spool, 81, a combustion port, 82, a combustible gas return pipeline, 83, a natural gas supply pipe and 85, a fireproof cover.

Detailed Description

The following describes a specific embodiment of the present invention with reference to fig. 1 to 2.

Fig. 1 illustrates the overall structure of a pyrolysis furnace and the assembly positions of the various components, the pyrolysis furnace comprising: a retort 1 for splendid attire carbomorphism raw materials sets up in retort 1 below hot bunker 8, and drive retort 1 rotatory drive arrangement 3 for support retort 1's fixed stay wheelset 6 and removal support wheelset 7, wherein, retort 1 includes: the furnace comprises a first furnace body 11 and a second furnace body 12 which are communicated with each other, wherein the first furnace body 11 and the second furnace body 12 are respectively supported by a group of fixed supporting wheel sets 6 and a group of movable supporting wheel sets 7.

The first furnace body 11 and the second furnace body 12 are provided with a driven large gear 14 fixedly arranged on the outer circles, which is meshed with a first driving gear 33 and a second driving gear 32 on a driving device 3 respectively, a speed reduction motor 31 drives the second driving gear 32 to rotate, the first driving gear 33 and the second driving gear 32 are connected through a universal transmission device 34, the second driving gear 32 and the first driving gear 33 are ensured to rotate synchronously, a furnace cover 16 is further arranged at the feeding end of the first furnace body 11, and a lifting ring 15 for lifting when the furnace is opened is arranged on the furnace cover 16.

Fig. 2 illustrates the furnace body supporting part of the pyrolysis furnace and the internal structure of the heating bin 8, the fixed supporting wheel set 6 is supported at one end of the furnace body provided with the driven big gear 14, the movable supporting wheel set 7 is supported at the other end of the furnace body far away from the driven big gear 14, the fixed supporting wheel set 6 and the movable supporting wheel set 7 are in rolling contact with the furnace body through cylindrical steel rollers at two sides, the movable supporting wheel set 7 can move on a guide rail 71 through a rolling I-shaped roller 72 arranged below, and the direction of the guide rail 71 is perpendicular to the rotation center of the carbonization furnace 1;

the second furnace body 12 is also provided with an exhaust pipe 4, the exhaust pipe 4 is connected with the second furnace body 12, and the first furnace body 11 is connected with the second furnace body 12 through a sealing device 13, so that the internal combustible gas can not leak when the carbonization furnace 1 rotates; the heating compartment 8 comprises: the natural gas supply pipe 83 stretches out from the natural gas supply pipe 83, and a plurality of burner ports 81 of opening orientation retort 1 bottom for surround the fire prevention cover 85 of burner port 81, avoid heat outdiffusion, the natural gas supply pipe 83 still with combustible gas return line 82 intercommunication, combustible gas return line 82 is connected with the output of condenser group 2, condenser group 2 and blast pipe 4 intercommunication.

The working principle is as follows: the first furnace body 11 is connected with the second furnace body 12 through a sealing device 13 which only plays a role of sealing, a driven large gear 14 is further arranged on the outer circles of the first furnace body 11 and the second furnace body 12, the driven large gear 14 is respectively meshed with a first driving gear 33 and a second driving gear 32 in the driving device 3, the first driving gear 33 and the second driving gear 32 are connected through a universal transmission device 34, and the other end of the second driving gear 32 is connected with a speed reduction motor 31.

The first furnace body 11 and the second furnace body 12 are respectively supported on the fixed supporting wheel set 6 and the movable supporting wheel set 7, and as power is transmitted through the gear, the closer to the gear, the better the coaxiality of the furnace body is, therefore, the fixed supporting wheel set 6 is arranged at the end close to the furnace body, which is provided with the driven large gear 14, and the movable supporting wheel set 7 with compensation capability is arranged at the far end with larger error of the coaxiality on the furnace body. When the furnace body rotates, the problem of rocking about the furnace body of distal end probably appears, and at this moment, removal support wheelset 7 can carry out compensatory displacement along with the furnace body along the direction of guide rail 71, ensures to support steadily.

In addition, the exhaust port 4 of the carbonization furnace 1 is connected with the condenser group 2, in the process that the carbonization furnace 1 is heated, raw materials in the furnace body can generate a large amount of carryable organic gases, the gases can be returned to the natural gas supply pipe 83 through the combustible gas return pipeline 82 after passing through the condenser group 2, the carbonization furnace 1 is continuously heated through the combustion port 81, energy recycling is achieved, and generated redundant gases can be utilized in other modes, such as a heating boiler.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An ultralong biomass pyrolysis furnace, comprising: the device comprises a carbonization furnace (1) for containing a carbonization raw material, a heating bin (8) arranged below the carbonization furnace (1), a driving device (3) for driving the carbonization furnace (1) to rotate, a fixed supporting wheel set (6) and a movable supporting wheel set (7) for supporting the carbonization furnace (1);

wherein the carbonization furnace (1) comprises: the furnace comprises a first furnace body (11) and a second furnace body (12) which are communicated with each other, wherein the first furnace body (11) and the second furnace body (12) are respectively supported by a group of fixed supporting wheel sets (6) and a group of movable supporting wheel sets (7).

2. The biomass pyrolysis furnace as claimed in claim 1, wherein the driven large gears (14) fixed on the outer circles of the first furnace body (11) and the second furnace body (12) are respectively engaged with the first driving gear (33) and the second driving gear (32) on the driving device (3), the reduction motor (31) drives the second driving gear (32) to rotate, and the first driving gear (33) and the second driving gear (32) are connected through the universal transmission device (34) to ensure the synchronous rotation of the second driving gear (32) and the first driving gear (33).

3. The biomass pyrolysis furnace as claimed in claim 2, wherein the fixed support wheel set (6) is supported at one end of the furnace body provided with the driven gearwheel (14), and the movable support wheel set (7) is supported at the other end of the furnace body far away from the driven gearwheel (14).

4. The biomass pyrolysis furnace according to claim 3, characterized in that the fixed support wheel set (6) and the movable support wheel set (7) are in rolling contact with the furnace body through cylindrical steel rollers at two sides, the movable support wheel set (7) can move on a guide rail (71) through a rolling I-shaped roller (72) arranged below, and the direction of the guide rail (71) is vertical to the rotation center of the carbonization furnace (1).

5. The biomass pyrolysis furnace as claimed in claim 2, wherein the second furnace body (12) is further provided with an exhaust pipe (4), and the exhaust pipe (4) is connected with the second furnace body (12) and the first furnace body (11) is connected with the second furnace body (12) through a sealing device (13) so as to ensure that the internal combustible gas of the carbonization furnace (1) does not leak when the carbonization furnace rotates.

6. The biomass pyrolysis furnace as claimed in claim 5, wherein the feeding end of the first furnace body (11) is further provided with a furnace cover (16), and the furnace cover (16) is provided with a lifting ring (15) for lifting when the furnace is opened.

7. The biomass pyrolysis furnace according to claim 1, wherein the heating bin (8) comprises: the natural gas supply pipe (83) extends out of the natural gas supply pipe (83), the opening of the natural gas supply pipe faces to the plurality of combustion ports (81) at the bottom of the carbonization furnace (1), and the natural gas supply pipe is used for surrounding a fireproof cover (85) of the combustion ports (81) and avoiding heat from diffusing outwards.

8. The biomass pyrolysis furnace as recited in claim 7, wherein the natural gas supply pipe (83) is further communicated with a combustible gas return pipeline (82), the combustible gas return pipeline (82) is connected with an output end of the condenser group (2), and the condenser group (2) is communicated with the exhaust pipe (4).