CN214694002U

CN214694002U - Pyrolysis furnace for pyrolyzing wastes

Info

Publication number: CN214694002U
Application number: CN202120714604.8U
Authority: CN
Inventors: 胡凤英
Original assignee: Jinhua Clear Water Environmental Protection Technology Co ltd
Current assignee: Jinhua Clear Water Environmental Protection Technology Co ltd
Priority date: 2021-04-08
Filing date: 2021-04-08
Publication date: 2021-11-12
Anticipated expiration: 2031-04-08

Abstract

The utility model discloses a pyrolysis furnace for pyrolyzing wastes, which comprises a furnace cover arranged at the top of a furnace body, wherein a heat exchanger is arranged on the furnace cover; the heat exchanger comprises a first shell, and a second shell is arranged in the first shell; wherein a cavity for medium flowing is formed between the first shell and the second shell; the heat exchanger is also provided with a sealing cover, and the cavity and the second shell are sealed in the first shell through the sealing cover; the medium flows in the cavity, so that heat in the smoke is exchanged to the medium, the waste heat in the smoke is recovered on one hand, the tar is conveniently formed and collected after the waste heat of the smoke is recovered on the other hand, and the stably flowing smoke is convenient for the precipitation of the tar and the efficient exchange of the heat; in addition, the inside of second casing is connected the intercommunication through the drainage tube that is equipped with and furnace body, and the inside of second casing is carried the flue gas after the stationary flow to the collector that is equipped with in through the connecting pipe, realizes the further collection of tar in the flue gas.

Description

Pyrolysis furnace for pyrolyzing wastes

Technical Field

The utility model relates to a discarded object pyrolysis technical field specifically is a pyrolysis oven for pyrolysis discarded object.

Background

Waste materials, such as wood chips in a wood processing plant, generate tar and combustible gas after pyrolysis, and in general, the tar is carried away by the combustible gas, so that the tar is wasted greatly; meanwhile, the combustible gas has higher heat after being generated, but the heat carried by the combustible gas is wasted in the conveying process of the existing equipment. In particular, tar can be automatically attached to the pipe wall after being cooled in the process of pipeline transportation, so that the inside of the pipeline is easily blocked by the tar, and further the transportation efficiency of combustible gas is influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a pyrolysis oven for pyrolysis discarded object to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a pyrolysis furnace for pyrolyzing wastes comprises a furnace cover arranged at the top of a furnace body, wherein a heat exchanger and a feed inlet for adding materials are arranged on the furnace cover; the heat exchanger comprises a first shell, and a second shell is arranged in the first shell; a cavity for medium flowing is formed between the first shell and the second shell; the second shell and the first shell are arranged concentrically, and the interior of the second shell is of a hollow structure and is used for stabilizing the flow velocity of the flue gas; the heat exchanger is also provided with a sealing cover, and the cavity and the second shell are sealed in the first shell through the sealing cover; the interior of the second shell is communicated with the interior of the furnace body through a drainage tube, and is used for introducing flue gas into the second shell; the inside of the second shell conveys the smoke after the flow stabilization to the collector through the connecting pipe arranged in the second shell, so that the tar in the smoke is further collected.

As the utility model discloses a preferred technical scheme: still be equipped with feed liquor pipe and drain pipe on the first casing, just the feed liquor pipe with all be equipped with the nut on the drain pipe, through nut and outside pipe connection realize that the medium is in circulation flow in the cavity.

As the utility model discloses a preferred technical scheme: the sealing cover is also provided with a round hole.

As the utility model discloses a preferred technical scheme: the collector is spiral, an oil discharge pipe is arranged at the lowest point of the collector, and the oil discharge pipe is communicated with the inner part of the collector.

As the utility model discloses a preferred technical scheme: the both ends of collector all are equipped with the ring flange, just the collector adopts stainless steel pipe to make.

As the utility model discloses a preferred technical scheme: the oil discharge pipe is in threaded connection with the collection bottle, and the collection bottle is made of transparent materials.

As the utility model discloses a preferred technical scheme: and the drainage tube penetrates through the heat exchanger and then is in threaded connection with a threaded hole reserved in the furnace cover, so that the heat exchanger is fixedly connected with the furnace cover.

As the utility model discloses a preferred technical scheme: one end of the drainage tube, which is far away from the furnace cover, is provided with a polygonal column with a hollow structure inside; the polygon prism is in contact with the inner bottom surface of the second shell through the arranged base plate.

As the utility model discloses a preferred technical scheme: the polygon prism is a hexagonal prism, and the base plate and the polygon prism are of an integrated structure.

Adopt above-mentioned technical scheme, the beneficial effects of the utility model are that: 1. because the medium flows in the cavity, the heat in the flue gas is exchanged to the medium, and the waste heat in the flue gas is recycled; secondly, after the flue gas waste heat is recovered, tar is convenient to form and gather in the second shell; the arrangement of the second shell enables the smoke to be stabilized after passing through the second shell, so that the stably flowing smoke is convenient for the precipitation of tar and the efficient exchange of heat;

2. because the inside of second casing is connected the intercommunication through the drainage tube that is equipped with and furnace body, and the inside of second casing is carried the flue gas after the stationary flow to the collector that is equipped with in through the connecting pipe, realizes the further collection of tar in the flue gas.

Drawings

FIG. 1 is a schematic view of the main structure of the present invention;

fig. 2 is a schematic cross-sectional view of a portion of the structure of fig. 1.

In the figure: 1. a furnace cover; 2. a circular hole; 3. a connecting pipe; 4. a collector; 5. a flange plate; 6. an oil discharge pipe; 7. a collection bottle; 8. a sealing cover; 9. a nut; 10. a feed inlet; 11. a drainage tube; 12. a first housing; 13. a liquid inlet pipe; 14. a liquid outlet pipe; 15. a second housing; 16. a cavity; 17. a polygonal column; 18. a backing plate.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention. In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "upper surface", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically connected, electrically connected or can communicate with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Referring to fig. 1-2, the present invention provides an embodiment: a pyrolysis furnace for pyrolyzing wastes comprises a furnace cover 1 arranged at the top of a furnace body, wherein a heat exchanger and a feed inlet 10 for adding materials are arranged on the furnace cover 1; the furnace body has no special requirements, the existing furnace body is adopted, the shape of the furnace cover 1 is matched with the structure of the furnace body, and the furnace cover is provided with a feed inlet 10, so that waste similar to wood chips can conveniently enter the furnace body after passing through the furnace cover 1; for example, when the furnace body has a cylindrical shape, the furnace lid 1 may be similarly cylindrical, and the furnace lid 1 may be directly fixed to the furnace body.

The heat exchanger comprises a first shell 12, and a second shell 15 is arranged inside the first shell 12; a cavity 16 for medium flowing is formed between the first shell 12 and the second shell 15; the second shell 15 and the first shell 12 are concentrically arranged, and the inside of the second shell 15 is a hollow structure for stabilizing the flow rate of the flue gas; the first shell 12 and the second shell 15 are independent and concentric with each other, so that the overall volume of the heat exchanger is reduced, the cavity 16 is convenient for a medium, such as water, to flow, and the second shell 15 is hollow, so that flue gas enters the second shell 15, the volume of the gas is increased, the flow velocity of the gas is buffered, the steady flow function of the gas is realized, and meanwhile, the exchange area of the gas and the medium is enlarged due to the increase of the volume of the gas in the second shell 15, so that the heat exchange efficiency of the heat exchanger is improved;

because the heat exchanger is also provided with a sealing cover 8, the cavity 16 and the second shell 15 are sealed in the first shell 12 through the sealing cover 8; therefore, the two shells can be further mutually independent, and the two shells cannot interfere with each other when working, so that the tar precipitation is free from the interference of a medium, and the tar cannot be mixed in the flowing of the medium; in addition, the sealing cover 8 is in threaded connection with the inner wall of the first shell 12;

the interior of the second shell 15 is communicated with the interior of the furnace body through a drainage tube 11, and is used for introducing flue gas into the second shell 15, so that the flue gas can smoothly circulate;

because the inside of second casing 15 is carried the flue gas after the stationary flow to the collector 4 that is equipped with in through the connecting pipe 3 that is equipped with, utilizes collector 4, realizes the further collection of tar in the flue gas.

In order to facilitate the medium to enter the heat exchanger, a liquid inlet pipe 13 and a liquid outlet pipe 14 are further arranged on the first shell 12, nuts 9 are arranged on the liquid inlet pipe 13 and the liquid outlet pipe 14, the medium is circularly flowed in the cavity 16 through connection of the nuts 9 and an external pipeline, and in addition, the nuts 9 are arranged, so that the liquid inlet pipe 13 and the liquid outlet pipe 14 can be movably connected with the pipeline.

Because still be equipped with round hole 2 on the sealed lid 8, consequently be convenient for take out the tar that will deposit in second casing 15 through round hole 2, for example through the oil pump, pass round hole 2, the tar that will deposit in second casing 15 this moment is taken out, in addition, tar can also directly take off the heat exchanger from bell 1, then open sealed lid 8 and realize pouring out of tar.

In order to further realize the cooling of flue gas in order to improve the extraction efficiency of tar, collector 4 is the heliciform, and the minimum of collector 4 is equipped with oil drain pipe 6, just oil drain pipe 6 with the internal connection intercommunication of collector 4, because collector 4 is the heliciform, consequently can prolong the time that the flue gas flows, so enlarge the cooling time and the cooling area of flue gas, because the stroke that the flue gas circulates is long, be favorable to the tar in the flue gas to adhere to at the inner wall of collector 4, set up oil drain pipe 6 simultaneously at the minimum, so the tar of being convenient for to accumulate in collector 4 is to oil drain pipe 6 department and is discharged tar through oil drain pipe 6.

In order to facilitate the installation of the collector 4, two ends of the collector 4 are respectively provided with a flange 5, one end of the collector 4 is connected with the connecting pipe 3 through the flange 5, and the other end of the collector 4 is connected with a pipeline through the flange 5 to convey the flue gas out; in addition, the collector 4 is made of stainless steel pipes, so that the heat dissipation efficiency is high, and meanwhile, the collector has enough structural strength and cannot be easily deformed.

In order to further avoid tar to receive the pollution oil drain pipe 6 and the 7 threaded connection of collecting bottle that are equipped with owing to set up collecting bottle 7, consequently can directly hold tar, avoid tar to pollute, because collecting bottle 7 is made for transparent material, the volume of the inside tar of collecting bottle 7 of consequently being convenient for audio-visually understanding, transparent material can be glass in addition, transparent plastic etc..

Because the drainage tube 11 passes through the heat exchanger and then is in threaded connection with a threaded hole reserved in the furnace cover 1, the heat exchanger is fixedly connected with the furnace cover 1, and the heat exchanger is convenient and simple to mount and dismount through the scheme.

Further, one end of the drainage tube 11, which is far away from the furnace cover 1, is provided with a polygonal column 17 with a hollow structure inside; the flow of the flue gas is facilitated, and the polygonal column 17 is in contact with the inner bottom surface of the second shell 15 through the backing plate 18, so that the heat exchanger can be stably fixed on the furnace cover 1 by increasing the contact area.

Further, the polygonal column 17 is a hexagonal column, and the pad plate 18 and the polygonal column 17 are an integral structure. Through the scheme, the drainage tube 11 can be fixed on the furnace cover 1 by the conventional hexagonal sleeve.

Through the technical scheme, as the medium flows in the cavity 16 and the heat in the flue gas is exchanged to the medium, the waste heat in the flue gas can be recycled; after the waste heat of the flue gas is recovered, tar is conveniently formed and gathered in the second shell 15, and the primary collection of the tar is realized; thirdly, the arrangement of the second shell 15 enables the smoke to be stabilized after passing through the second shell 15, so that the stably flowing smoke is convenient for the precipitation of tar and the efficient exchange of heat; meanwhile, the interior of the second shell 15 is communicated with the furnace body through the drainage tube 11, and the interior of the second shell 15 conveys the smoke after steady flow into the collector 4 through the connecting tube 3, so that the tar in the smoke is further collected.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in the embodiments without departing from the principles and spirit of the invention, and the scope of the invention is to be accorded the full scope of the claims.

Claims

1. A pyrolysis furnace for pyrolyzing waste, comprising: the furnace comprises a furnace cover (1) arranged at the top of a furnace body, wherein a heat exchanger and a feeding hole (10) for adding materials are arranged on the furnace cover (1);

the heat exchanger comprises a first shell (12), and a second shell (15) is arranged inside the first shell (12);

a cavity (16) for medium flow is formed between the first shell (12) and the second shell (15);

the second shell (15) and the first shell (12) are arranged concentrically, and the interior of the second shell (15) is of a hollow structure and is used for stabilizing the flow velocity of the flue gas;

the heat exchanger is also provided with a sealing cover (8), and the cavity (16) and the second shell (15) are sealed in the first shell (12) through the sealing cover (8);

the interior of the second shell (15) is communicated with the interior of the furnace body through a drainage tube (11) arranged on the second shell for introducing flue gas into the second shell (15);

the flue gas after the steady flow is conveyed to the collector (4) through the connecting pipe (3) arranged in the second shell (15), so that tar in the flue gas is further collected.

2. A pyrolysis furnace for pyrolyzing waste according to claim 1, wherein: still be equipped with feed liquor pipe (13) and drain pipe (14) on first casing (12), just feed liquor pipe (13) with all be equipped with nut (9) on drain pipe (14), through nut (9) and outside pipe connection realize that the medium is in cavity (16) inner loop flows.

3. A pyrolysis furnace for pyrolyzing waste according to claim 2, wherein: the sealing cover (8) is also provided with a round hole (2).

4. A pyrolysis furnace for pyrolyzing waste according to claim 1, 2 or 3, wherein: the collector (4) is spiral, an oil discharge pipe (6) is arranged at the lowest point of the collector (4), and the oil discharge pipe (6) is communicated with the interior of the collector (4).

5. A pyrolysis furnace for pyrolyzing waste according to claim 4, wherein: the two ends of the collector (4) are provided with flange plates (5), and the collector (4) is made of stainless steel pipes.

6. A pyrolysis furnace for pyrolyzing waste according to claim 4, wherein: the oil discharge pipe (6) is in threaded connection with the collection bottle (7) which is arranged, and the collection bottle (7) is made of transparent materials.

7. A pyrolysis furnace for pyrolyzing waste according to claim 1, 2 or 3, wherein: the drainage tube (11) penetrates through the heat exchanger and then is in threaded connection with a threaded hole reserved in the furnace cover (1), so that the heat exchanger is fixedly connected with the furnace cover (1).

8. A pyrolysis furnace for pyrolyzing waste according to claim 7, wherein: one end of the drainage tube (11) far away from the furnace cover (1) is provided with a polygonal column (17) with a hollow structure inside; wherein the polygon prism (17) is contacted with the inner bottom surface of the second shell (15) through a backing plate (18).

9. A pyrolysis furnace for pyrolyzing waste according to claim 8, wherein: the polygon prism (17) is a hexagonal prism, and the backing plate (18) and the polygon prism (17) are of an integral structure.