CN111750360A

CN111750360A - High-temperature pyrolysis furnace and flue gas treatment assembly line

Info

Publication number: CN111750360A
Application number: CN202010775629.9A
Authority: CN
Inventors: 吴晓龙
Original assignee: Fujian Huixin Environmental Technology Co ltd
Current assignee: Fujian Huixin Environmental Technology Co ltd
Priority date: 2020-08-05
Filing date: 2020-08-05
Publication date: 2020-10-09

Abstract

The invention discloses a high-temperature pyrolysis furnace, which comprises a shell main body, a feed hopper and an ash outlet, wherein a first clapboard arranged in the shell main body divides an inner cavity into a primary combustion chamber and an upper cavity; an exhaust cavity is formed between the first annular wall body arranged in the upper cavity and the shell main body and is communicated with the outside; a feeding cavity is formed between the second annular wall body arranged in the first annular wall body and the first annular wall body, and two ends of the feeding cavity are respectively communicated with the feeding hopper and the primary combustion chamber; a heat exchange cavity is formed between a third annular wall body arranged in the second annular wall body and the second annular wall body, and the heat exchange cavity is communicated with the exhaust cavity; the inner cavity is divided into a second-stage combustion chamber, a third-stage combustion chamber and a fourth-stage combustion chamber by a second partition plate and a third partition plate which are sequentially arranged from bottom to top in the third annular wall body, and the fourth-stage combustion chamber is communicated with the heat exchange cavity. According to the invention, the garbage is preheated by using the high-temperature flue gas, so that the heat waste is reduced, and the pyrolysis efficiency is improved.

Description

High-temperature pyrolysis furnace and flue gas treatment assembly line

Technical Field

The invention relates to the technical field of environmental protection equipment, in particular to a high-temperature pyrolysis furnace and a flue gas treatment production line.

Background

Along with the increasing aggravation of environmental problems, the environmental protection treatment of garbage becomes a trend, because the high-temperature pyrolysis of the garbage under the condition of no oxygen or oxygen deficiency is a process of breaking organic macromolecules in the garbage to generate micromolecular gas, tar and residue, the garbage pyrolysis technology not only realizes the harmlessness, reduction and recycling of the garbage, but also can effectively overcome the problem of secondary pollution caused by garbage incineration, the garbage treatment by using a high-temperature pyrolysis furnace becomes a garbage treatment technology with a great development prospect, but the household garbage can generate a great amount of high-temperature flue gas along with the pyrolysis process, the flue gas contains a great amount of harmful gas, so the flue gas can not be directly discharged into the atmosphere, the flue gas is too high in temperature and can not be directly sent into a dust removal device, a cooling tower is required to cool the flue gas before the flue gas is purified, air cooling or water cooling is usually adopted, but will cause a great deal of waste of heat energy, which is not beneficial to energy conservation and emission reduction.

Disclosure of Invention

In view of the above, the present invention provides a high temperature pyrolysis furnace and a flue gas treatment line to solve the above technical problems.

In order to achieve the purpose, the invention provides the following technical scheme:

the utility model provides a high temperature pyrolysis oven, includes shell main part, landing leg, feeder hopper and ash hole, wherein, still includes:

the first partition plate is horizontally arranged in the shell main body, and the inner cavity of the shell main body is divided into a primary combustion chamber and an upper cavity;

the first annular wall body is arranged in the upper cavity, an annular exhaust cavity is formed between the first annular wall body and the shell main body, and the exhaust cavity is communicated with the outside through an exhaust port;

the second annular wall body is arranged in the first annular wall body, an annular feeding cavity is formed between the first annular wall body and the second annular wall body, and two ends of the feeding cavity are respectively communicated with the feeding hopper and the primary combustion chamber;

a third annular wall body arranged in the second annular wall body, an annular heat exchange cavity is formed between the second annular wall body and the third annular wall body, and the bottom of the heat exchange cavity is communicated with the exhaust cavity through a plurality of channel pipes;

set gradually by bottom to top second baffle and third baffle in third annular wall's the inner chamber, second grade combustion chamber, tertiary combustion chamber and level four combustion chamber are cut apart into to third annular wall's inner chamber, are located the breach at third annular wall top makes the level four combustion chamber with heat exchange cavity intercommunication, and one-level combustion chamber, second grade combustion chamber, tertiary combustion chamber, level four combustion chamber communicate in proper order.

Furthermore, a guide cone top shell is arranged in the feeding hole, the guide cone top shell is connected with a threaded cylinder body located at the top of the shell main body, an annular slide cavity formed between the guide cone top shell and the feeding hopper is communicated with the feeding cavity, a shifting rod of the guide cone top shell penetrates through the feeding hopper to extend outwards, and the shifting rod is connected with the shell main body through a screw.

Furthermore, a plurality of mutually staggered inclined struts are arranged in the feeding cavity.

Furthermore, a flow regulating device is arranged in the heat exchange cavity.

Furthermore, flow regulation apparatus includes a plurality of retainer plate, a plurality of movable circle and end plate, the retainer plate is in fixed connection along the axis in proper order on the inner wall of second annular wall body, the conical outside surface of movable circle and the bell mouth cooperation installation of the retainer plate that corresponds adopt a plurality of links up pole fixed connection between two adjacent movable circles, and a plurality of links up the pole on the movable circle of connection top and pass the top cap of shell main part with end plate fixed connection, the end plate support press in on the inner wall of guide awl top shell, just the end plate with be equipped with the spring between the top cap of shell main part.

Furthermore, be equipped with a section and be triangle-shaped net frame and the protruding net of a plurality of support on the bottom surface of one-level combustion chamber, just it is located to separate the net frame the central point of one-level combustion chamber puts the department.

Furthermore, the ash knocking device further comprises a plurality of ash knocking rods which penetrate through the side wall of the primary combustion chamber and are arranged on the side wall of the primary combustion chamber in a sliding mode, and the ash knocking rods are used for knocking the net separating rack.

Furthermore, the device also comprises a material guide funnel arranged in the primary combustion chamber, and the ash knocking rod is positioned below the material guide funnel.

The other technical scheme disclosed by the invention is as follows:

a flue gas treatment assembly line comprises a cooling tower, a cyclone dust removal device, an activated carbon adsorption tower, a cloth bag dust removal device, a primary wet electric dust removal device, a secondary wet electric dust removal device, a tertiary wet electric dust removal device and a spray smoke window which are sequentially communicated, wherein an air inlet of the cooling tower is communicated with an air outlet of a high-temperature pyrolysis furnace in the high-temperature pyrolysis furnace, a water spray head of the primary wet electric dust removal device, a water spray head of the secondary wet electric dust removal device and a water spray head of the tertiary wet electric dust removal device are communicated with a wet electric water tank, the water spray head of the spray smoke window is communicated with the spray water tank, and a dry type atomizer is arranged in the cooling tower.

The technical scheme can show that the invention has the advantages that: according to the high-temperature pyrolysis furnace, the garbage is preheated in the smoke discharging process, so that the temperature of smoke is reduced, the garbage can be rapidly combusted after entering the primary combustion chamber, the working efficiency is improved, and the waste of heat is reduced; the combustion chamber is positioned in the center, the heat exchange cavity is positioned at the inner side of the feeding cavity, and waste of heat caused by direct diffusion of a large amount of heat into air can be avoided; the flow regulating device is arranged in the heat exchange cavity, so that the flue gas flow can be regulated according to actual needs, and the utilization rate of heat is improved; utilize the flue gas after the flue gas treatment assembly line of this application to handle, purifying effect is good.

In addition to the objects, features and advantages described above, other objects, features and advantages of the present invention are also provided. The present invention will be described in further detail below with reference to the drawings.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic view of the internal structure of a pyrolysis furnace of the present invention.

Fig. 2 is a schematic perspective view of a flow rate adjusting device of a pyrolysis furnace according to the present invention.

FIG. 3 is a schematic diagram of a flue gas treatment line of the present invention.

List of reference numerals: the device comprises a shaftless garbage conveyor 1, a spring 20, a shell main body 21, a first partition plate 211, a first annular wall 212, a second annular wall 213, a third annular wall 214, a notch 2141, a second partition plate 215, a third partition plate 216, a material guide funnel 217, a support convex net 218, a support leg 22, a feed hopper 23, a material guide cone top shell 24, a shift lever 241, an inclined strut 25, a flow regulating device 26, a fixed ring 261, a movable ring 262, a connecting rod 263, an end plate 264, an ash outlet 27, a net separating frame 28, an ash knocking rod 29, a cooling tower 3, a dry atomizer 4, a cyclone dust removal device 5, an activated carbon adsorption tower 6, a cloth bag dust removal device 7, a primary wet electric dust removal device 8, a secondary wet electric dust removal device 9, a tertiary wet electric dust removal device 10, a wet electric water tank 20, a spray smoke window 30 and a spray water tank 40.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 and 2, a high temperature pyrolysis furnace comprises a housing main body 21, legs 22 arranged at the bottom of the housing main body 21, a feed hopper 23 and an ash outlet 27 arranged at the top of the housing main body 21, wherein the feed hopper 23 is communicated with a discharge port of a shaftless garbage conveyor 1, a first partition plate 211 horizontally arranged in the housing main body 21 divides an inner cavity of the housing main body 21 into a primary combustion chamber and an upper cavity, and the primary combustion chamber is communicated with the ash outlet 27; a first annular wall 212 is arranged in the upper cavity, an annular exhaust cavity is formed between the first annular wall 212 and the shell main body 21, and the exhaust cavity is communicated with the outside through an exhaust port; a second annular wall 213 is arranged in the first annular wall 212, an annular feeding cavity is formed between the first annular wall 212 and the second annular wall 213, and two ends of the feeding cavity are respectively communicated with the feed hopper 23 and the primary combustion chamber; a third annular wall body 214 is arranged in the second annular wall body 213, an annular heat exchange cavity is formed between the second annular wall body 213 and the third annular wall body 214, and the bottom of the heat exchange cavity is communicated with the exhaust cavity through a plurality of channel pipes; second baffle 215 and third baffle 216 have set gradually by bottom to top in the inner chamber of third annular wall body 214, second grade combustion chamber, tertiary combustion chamber and level four combustion chamber are cut apart into by bottom to top in the inner chamber of third annular wall body 214, are located breach 2141 at third annular wall body 214 top makes level four combustion chamber with heat exchange cavity intercommunication, and one-level combustion chamber, second grade combustion chamber, tertiary combustion chamber, level four combustion chamber communicate in proper order.

Preferably, a plurality of mutually staggered inclined struts 25 are arranged in the feeding cavity.

The feeding device is characterized in that a guide cone top shell 24 is arranged in the feeding hole 23, the guide cone top shell 24 is connected with a threaded cylinder located at the top of the shell main body 21, the guide cone top shell 24 is communicated with an annular sliding cavity formed between the feeding hoppers 23, the guide cone top shell 24 is arranged to enable garbage to smoothly enter the feeding cavity, a shifting lever 241 of the guide cone top shell 24 penetrates through the feeding hoppers 23 to extend outwards, and the shifting lever 241 is connected with the shell main body 21 through screws.

Preferably, a flow regulating device 26 is arranged in the heat exchange cavity.

The flow rate adjusting device 26 includes a plurality of fixed rings 261, a plurality of movable rings 262 and an end plate 264, the fixed rings 261 are sequentially and fixedly connected to the inner wall of the second annular wall 213 along the axis, the outer conical surface of the movable ring 262 is installed in cooperation with the conical hole of the corresponding fixed ring 261, two adjacent movable rings 262 are fixedly connected by a plurality of connecting rods 263, the plurality of connecting rods 263 connected to the movable ring 262 at the top pass through the top cover of the casing main body 21 and are fixedly connected to the end plate 264, the end plate 264 is pressed against the inner wall of the guide cone top shell 24, a spring 20 is arranged between the end plate 264 and the top cover of the casing main body 21, wherein the inner diameter of the small end of the conical hole of the fixed ring 261 is greater than the outer diameter of the third annular wall 214, and the outer diameter of the large end of the outer conical surface of the movable ring 262 is smaller than the inner diameter of the second annular wall 213, when the guide cone top shell 24 rotates and descends by operating the shift lever 241, the end plate 264 is pressed to enable all the movable rings 262 to move downwards, so that the channels between the movable rings 262 and the fixed ring 261 are reduced, when the guide cone top shell 24 moves upwards, all the movable rings 262 move upwards through the spring 20, the channels between the movable rings 262 and the fixed ring 261 are increased, and the adjusting process is convenient.

Be equipped with on the bottom surface of one-level combustion chamber that a section is triangle-shaped separate net rack 28 and a plurality of support protruding net 218, just separate net rack 28 and be located the central point of one-level combustion chamber puts the department, and when the initial ignition, the faggots is placed separate net rack 28 below, can provide sufficient oxygen and realize the initial ignition, and avoid rubbish to gush in a large number and make the flame extinguish.

This application is still including running through the slip setting a plurality of grey poles of knocking 29 on the lateral wall of one-level combustion chamber, it is used for beating to knock grey pole 29 separate rack 28, make in ashes get into ash outlet 27 fast, leave sufficient space and be used for rubbish pyrolytic processing, beat the in-process also can make rubbish not hard up, convenient quick the burning out makes work efficiency improve.

This application is still including setting up guide funnel 217 in the one-level combustion chamber, strike grey pole 29 and be located guide funnel 217's below, the central point of the one-level combustion chamber of being convenient for puts and also can send into sufficient rubbish and burn, shortens and ignites the initial time.

Referring to fig. 3, a flue gas treatment assembly line, including cooling tower 3, cyclone 5, active carbon adsorption tower 6, sack dust collector 7, the wet electric dust collector of one-level 8, the wet electric dust collector of second grade 9, the wet electric dust collector of third grade 10, the spray smoke window 30 that communicate in proper order, the air inlet of cooling tower 3 communicates with the gas vent of the high temperature pyrolysis stove in the above-mentioned claims 1 to 7, the sprinkler bead of the wet electric dust collector of one-level 8, the sprinkler bead of the wet electric dust collector of second grade 9 and the sprinkler bead of the wet electric dust collector of third grade 10 all communicate with wet electric water tank 20, the sprinkler bead of spray smoke window 30 communicates with spray water tank 40, be equipped with dry atomizer 4 in the cooling tower 3, adopt the flue gas after the flue gas treatment assembly line of this application handles, purifying effect is good.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A high-temperature pyrolysis furnace, includes shell main part (21), landing leg (22), feeder hopper (23) and ash hole (27), its characterized in that still includes:

a first partition plate (211) horizontally arranged in the housing main body (21), wherein the inner cavity of the housing main body (21) is divided into a primary combustion chamber and an upper cavity;

a first annular wall (212) arranged in the upper cavity, wherein an annular exhaust cavity is formed between the first annular wall (212) and the shell main body (21), and the exhaust cavity is communicated with the outside through an exhaust port;

the second annular wall body (213) is arranged in the first annular wall body (212), an annular feeding cavity is formed between the first annular wall body (212) and the second annular wall body (213), and two ends of the feeding cavity are respectively communicated with the feed hopper (23) and the primary combustion chamber;

a third annular wall (214) arranged in the second annular wall (213), an annular heat exchange cavity is formed between the second annular wall (213) and the third annular wall (214), and the bottom of the heat exchange cavity is communicated with the exhaust cavity through a plurality of channel pipes;

set gradually from bottom to top second baffle (215) and third baffle (216) in the inner chamber of third annular wall body (214), second grade combustion chamber, tertiary combustion chamber and level four combustion chamber are cut apart into to the inner chamber of third annular wall body (214), are located breach (2141) at third annular wall body (214) top make level four combustion chamber with heat exchange cavity intercommunication, and one-level combustion chamber, second grade combustion chamber, tertiary combustion chamber, level four combustion chamber communicate in proper order.

2. The pyrolysis furnace according to claim 1, wherein a guide cone top shell (24) is arranged in the feed port (23), the guide cone top shell (24) is connected with a threaded cylinder body positioned at the top of the outer shell body (21), an annular chute formed between the guide cone top shell (24) and the feed hopper (23) is communicated with the feed chamber, a deflector rod (241) of the guide cone top shell (24) extends outwards through the feed hopper (23), and the deflector rod (241) is connected with the outer shell body (21) through a screw.

3. A pyrolysis furnace according to claim 1, characterized in that the feed chamber is provided with a plurality of mutually staggered diagonal braces (25).

4. A pyrolysis furnace according to claim 2, characterized in that the heat exchange chamber is provided with a flow regulating device (26).

5. A pyrolysis furnace according to claim 4, characterized in that the flow regulating means (26) comprises a number of fixed rings (261), a number of movable rings (262) and end plates (264), the fixed rings (261) are sequentially and fixedly connected to the inner wall of the second annular wall body (213) along the axis, the outer conical surface of the movable ring (262) is matched and installed with the conical hole of the corresponding fixed ring (261), two adjacent movable rings (262) are fixedly connected by adopting a plurality of joint rods (263), the plurality of joint rods (263) connected to the movable ring (262) at the top part penetrate through the top cover of the shell main body (21) and are fixedly connected with the end plate (264), the end plate (264) is pressed against the inner wall of the guide cone top shell (24), and a spring (20) is arranged between the end plate (264) and the top cover of the shell main body (21).

6. The pyrolysis furnace according to claim 1, wherein a net partition frame (28) having a triangular cross section and a plurality of supporting ribs (218) are provided on a bottom surface of the primary combustion chamber, and the net partition frame (28) is located at a central position of the primary combustion chamber.

7. The pyrolysis furnace according to claim 6, further comprising a plurality of knock-out bars (29) slidably disposed through the side walls of the primary combustion chamber, wherein the knock-out bars (29) are configured to knock the screen frame (28).

8. The pyrolysis furnace according to claim 6, further comprising a material guide funnel (217) disposed in the primary combustion chamber, wherein the knock-out rod (29) is located below the material guide funnel (217).

9. The flue gas treatment assembly line is characterized by comprising a cooling tower (3), a cyclone dust removal device (5), an activated carbon adsorption tower (6), a cloth bag dust removal device (7), a first-stage wet electric dust removal device (8), a second-stage wet electric dust removal device (9), a third-stage wet electric dust removal device (10) and a spray smoke window (30) which are sequentially communicated, wherein an air inlet of the cooling tower (3) is communicated with an air outlet of the high-temperature pyrolysis furnace in the claims 1 to 7, a water spray head of the first-stage wet electric dust removal device (8), a water spray head of the second-stage wet electric dust removal device (9) and a water spray head of the third-stage wet electric dust removal device (10) are communicated with a wet electric water tank (20), the water spray head of the spray smoke window (30) is communicated with a spray water tank (40), and a dry atomizer (4) is arranged in the cooling tower (.