CN212273996U

CN212273996U - Environment-friendly garbage combustion interlayer cracking furnace

Info

Publication number: CN212273996U
Application number: CN202020854860.2U
Authority: CN
Inventors: 梁山; 梁保安; 梁长安
Original assignee: Shaanxi Zhengshan Smokeless Technology Co ltd
Current assignee: Shaanxi Zhengshan Smokeless Technology Co ltd
Priority date: 2020-05-20
Filing date: 2020-05-20
Publication date: 2021-01-01
Anticipated expiration: 2030-05-20

Abstract

The utility model provides an environment-friendly rubbish combustion layer pyrolysis furnace, including being located the furnace of furnace body, furnace's top is equipped with the feed inlet, set up the wind window in the furnace, the below that is located the wind window in the furnace sets up chain belt grate, the top of chain belt grate sets up inner chamber top I, the top of wind window sets up inner chamber top II, inner chamber top I and inner chamber top II are cut apart furnace for the schizolysis thorax that is located the below and the flame thorax that is located the top, wind window and chain belt grate are located the schizolysis thorax, set up first guide plate and second guide plate in the flame thorax, the furnace both sides that are located second guide plate below in the flame thorax set up the tail cigarette export. The utility model discloses utilize gravity natural distribution rubbish layer, realize the schizolysis oxidation in the airtight space with the help of the filler structure, the ash residue can't form the fixed bed in this structure, and oxidation layer, the dry layer that forms in the schizolysis layer constantly overlap continuously, so circulation drops naturally after having burnt, and the furnace body takes the negative pressure operation, purifies poisonous and harmful tail-gas from the source.

Description

Environment-friendly garbage combustion interlayer cracking furnace

Technical Field

The utility model relates to a waste incinerator technical field, concretely relates to cracking furnace between environment-friendly rubbish burning layer.

Background

The garbage combustion layer cracking is characterized in that smoke, hydrogen, tar, carbon monoxide and other toxic and harmful gases are combusted during garbage combustion and are divided into a flame layer, an oxidation layer, a drying layer and a fuel layer, oxidation, cracking and drying in the garbage combustion process are carried out simultaneously, cracking combustible gas is combusted between the oxidation layer and the cracking layer, the oxidation layer and the cracking layer are further formed, the whole high-temperature path system is clean yellow and white, no gray or black exists, and pollution to atmosphere during garbage combustion is fundamentally avoided. The problems that exist at present are: 1. the traditional combustion cracking ash is generated above a grate, an oxidation layer, a cracking layer, a drying layer and a garbage layer are sequentially arranged on the ash, a large amount of flue gas is generated and then enters secondary combustion, a sealed container is approached, a large amount of air can not be supplied, the yield is extremely low, and the efficiency is poor; 2. the garbage combustion has realized the problem of garbage cracking, but needs a closed space or a container similar to the closed space, is limited by conditions, and has overhigh investment cost.

SUMMERY OF THE UTILITY MODEL

In order to overcome exist not enough among the prior art, the utility model provides an environment-friendly rubbish burning interlaminar pyrolysis furnace, utilize gravity natural distribution rubbish layer, interlaminar pyrolysis is on the wind window, be the rubbish layer on the wind window in proper order, the drying layer, the schizolysis layer, oxide layer and lime-ash, it is opposite with traditional schizolysis preface, the lime-ash nevertheless can not form the fixed bed in the superiors, the lime-ash rolls along with the wind window whereabouts, the lime-ash that drops and the product activity after the oxidation continue abundant burning on the chain belt grate, the lime-ash can't form the fixed bed in this structure, make the oxide layer that forms in the schizolysis layer, the drying layer is continuous, the natural circulation of so that drops after having burnt, and the furnace body takes the negative pressure operation, accomplish the pollutant and burn completely in furnace, purify poisonous and harmful tail smoke from the.

The utility model discloses a realize through following technical scheme: the utility model provides an environment-friendly rubbish combustion layer pyrolysis furnace, is equipped with the feed inlet including the furnace that is located the furnace body, furnace's top, sets up the wind window in the furnace, and the wind window comprises many horizontal equidistance of class board and sets up the gentle slope to one side in plane, is the room tile formula and arranges, leaves the gap between the class board, its characterized in that: the chain belt type fire grate is arranged at the tail end of the air window in the hearth and horizontally fixed at the bottom of the hearth, air supply outlets are formed in the side edges of the chain belt type fire grate, an inner chamber top I is arranged above the chain belt type fire grate, an inner chamber top II is arranged above the air window, the inner chamber top I and the inner chamber top II divide the hearth into a cracking chamber located below and a flame chamber located above, the air window and the chain belt type fire grate are located in the cracking chamber, and a flame backflow channel is reserved between the inner chamber top I and the inner chamber top II; the vertical flame chamber baffle that sets up in the flame chamber, the both sides and the furnace lateral wall of flame chamber baffle are sealed, leave between the upper end of flame chamber baffle and the top of furnace and seal between the lower extreme and the inner chamber top I of water conservancy diversion passageway, flame chamber baffle, the left and right sides slope of flame chamber baffle sets up first guide plate and second guide plate, leaves the water conservancy diversion passageway between first guide plate and the inner chamber top II, leaves the water conservancy diversion passageway between second guide plate and the inner chamber top I, the furnace both sides that lie in the second guide plate below in the flame chamber set up the tail smoke outlet, the end of schizolysis chamber and flame chamber all sets up the inspection opening, sets up ash leakage mouth on the inner chamber top I, the top of chain belt grate still sets up the ignition mouth.

In the scheme, the inner roof II is arranged in parallel with the air window.

In the above scheme, the inside roof II, the inside roof I and the flame return passage are all provided with cyclone burners, each cyclone burner comprises a cylindrical combustion chamber, the furnace body is externally provided with a secondary air inlet I and a secondary air inlet II at the cylindrical combustion chamber, and the secondary air inlets I and the secondary air inlets II are oppositely arranged at two sides of the furnace body to enable secondary wind energy to enter the cylindrical combustion chamber in a tangential direction.

In the scheme, two layers of cyclone burners are arranged below the inner roof II.

In the scheme, a conveyor is arranged above the furnace body, and the conveyor is obliquely arranged between the feeding hole and the ground.

In the scheme, the emergency smoke tube is arranged in the flame chamber, and the air door is arranged on the emergency smoke tube.

In the scheme, a blower is arranged below the air window and supplies air to the air window through an air supply pipe, a furnace ash pit is arranged below the chain belt type fire grate, and the furnace ash pit is provided with a slag extractor.

In the above scheme, the feed inlet is provided with a travel switch for detecting the filling amount of the garbage.

In the above scheme, the lower terminal surface of interior roof I and interior roof II is the arch and pours with furnace's lateral wall integral type, interior roof I and interior roof II's material adopts fire-resistant high temperature material.

In the scheme, the hearth is further internally provided with transverse reinforcing rods, the reinforcing rods are welded on the side walls of the two sides in the hearth, and refractory bricks are wrapped on the reinforcing rods.

The cyclone burner is a burner which is driven by high-speed airflow to do vortex motion in a cylindrical combustion chamber and burns, adopts a cyclone form to burn, and is fed from the side wall of the cylinder, so that secondary air enters the cylindrical combustion chamber in a tangential direction, combustible particles or smoke are promoted to be fully mixed with air, and the combustion intensity is improved.

Compared with the prior art, the utility model relates to an environment-friendly garbage combustion interlaminar cracking furnace, its beneficial effect is:

1. the structure adopts upper filler in the furnace body, and the upper filler is piled up to form a garbage furnace cover which is in a negative pressure combustion state, so that the furnace body is ensured to be closed, and combustion smoke is not leaked;

2. a multi-stage combustion structure is designed in the hearth, a closed container is not needed, garbage is distributed in a layered manner, a fixed layer cannot be formed after combustion, and oxidizing slag is rolled and peeled off from the surface of an oxide layer under the action of gravity to realize natural alternation;

3. the air window and the lower part of the chain belt type fire grate can use a large amount of air, the yield is high, the temperature is high, and the manufacturing cost is low.

4. The furnace body is provided with a flame chamber, the space is long in large stroke, the high-temperature retention time in the flame chamber exceeds two seconds, and dioxin harmful substances are forcedly decomposed and eliminated, so that tail smoke is harmless.

Drawings

FIG. 1 is a schematic structural view of the environment-friendly garbage combustion interlayer cracking furnace of the present invention.

Fig. 2 is an enlarged view of F in fig. 1.

Fig. 3 is a schematic plan view of the piece 5 of fig. 1.

In the figure: 1. the furnace comprises a furnace body, a hearth, 3 air windows, 4 cracking hearths, 5 cyclone burners, 6 inner top hearths II, 7 feed inlets, 8 travel switches, 9 emergency smoke pipes, 10 conveyors, 11 flame hearths, 12 flow guide channels, 13 first flow guide plates, 14 flame chamber partition plates, 15 second flow guide plates, 16 tail smoke outlets, 17 inspection ports, 18 inner top hearths I and 19 slag separators, 20 furnace ash pits, 21 chain grate type grates, 22 air supply ports, 23 ignition ports, 24 air supply pipes, 25 air supply machines, 26 flame return hearth ports, 27 reinforcing rods, 28 flow falling plates, 29 gaps and 30 ash leakage ports.

Detailed Description

The following description will be made of an embodiment of the structure of the environment-friendly garbage combustion interlaminar cracking furnace according to the present invention with reference to the accompanying drawings and specific embodiments.

FIG. 1 is a schematic structural view of the environment-friendly garbage combustion interlayer cracking furnace of the present invention. Fig. 2 is an enlarged view of F in fig. 1. Fig. 3 is a schematic plan view of the piece 5 of fig. 1. In the figure, the environment-friendly garbage combustion interlayer cracking furnace comprises a hearth 2 positioned in a furnace body 1, wherein a feeding hole 7 is arranged above the hearth 2, an air window 3 is arranged in the hearth 2, the air window 3 is a plane inclined gentle slope formed by a plurality of flow falling plates 28 at equal intervals in the transverse direction and is arranged in a roof tile manner, gaps 29 are reserved between the flow falling plates 28, a chain belt type grate 21 is arranged at the tail end of the air window 3 in the hearth 2, the chain belt type grate 21 is horizontally fixed at the bottom of the hearth 2, air supply openings 22 are formed in the side edges of the chain belt type grate 21, an inner roof I18 is arranged above the chain belt type grate 21, an inner roof II6 is arranged above the air window 3, the inner roof II6 is arranged in parallel to the air window 3, the inner roof I18 and the inner roof II6 divide the hearth 2 into a cracking chamber 4 positioned below and a flame chamber 11 positioned above, the air window 3 and the chain belt type grate 21 are positioned in the cracking chamber 4, and a flame backflow channel is reserved between the inner roof I18 and the inner; a flame chamber partition plate 14 is vertically arranged in a flame chamber 11, two sides of the flame chamber partition plate 14 are sealed with the side wall of a hearth 2, a flow guide channel 12 is reserved between the upper end of the flame chamber partition plate 14 and the top of the hearth 2, the lower end of the flame chamber partition plate 14 and an inner chamber top I18 are sealed, a first flow guide plate 13 and a second flow guide plate 15 are obliquely arranged on the left side and the right side of the flame chamber partition plate 14, the flow guide channel 12 is reserved between the first flow guide plate 13 and the inner chamber top II6, the flow guide channel 12 is reserved between the second flow guide plate 15 and the inner chamber top I18, a tail smoke outlet 16 is arranged on two sides of the hearth below the second flow guide plate 15 in the flame chamber 11, check ports 17 are arranged at the tail ends of a cracking chamber 4 and the flame chamber 11, and an ignition port 23 is further arranged. The inner roof II6, the inner roof I18 and the flame return passage 16 are all provided with cyclone burners 5, each cyclone burner 5 comprises a cylindrical combustion chamber 502, a secondary air inlet I501 and a secondary air inlet II503 are arranged at the cylindrical combustion chamber 502, and the secondary air inlets I501 and the secondary air inlets II503 are oppositely arranged on two sides of the furnace body 1 to enable secondary wind energy to enter the cylindrical combustion chamber 502 in a tangential direction. Two layers of cyclone burners 5 are arranged below the inner roof II 6.

A conveyor 10 is arranged above the furnace body 1, and the conveyor 10 is obliquely arranged between the feed port 7 and the ground. An emergency smoke tube 9 is arranged in the flame chamber 11, and an air door is arranged on the emergency smoke tube 9. A blower 25 is arranged below the air window 3, the blower 25 supplies air to the air window 3 through an air supply pipe 24, an ash pit 20 is arranged below the chain grate 21, and the ash pit 20 is provided with a slag extractor 19. The feed inlet 7 is provided with a travel switch 8 for detecting the filling amount of the garbage. The lower end surfaces of the inner roof I18 and the inner roof II6 are both arched and are integrally poured with the side wall of the hearth 2, and the materials of the inner roof I18 and the inner roof II6 are made of fireproof high-temperature materials. The hearth 2 is also internally provided with transverse reinforcing rods 27, the reinforcing rods 18 are welded on the side walls at two sides in the hearth 2, and the reinforcing rods 27 are wrapped with refractory bricks.

The working process is as follows: the garbage is firstly sent into the furnace body 1 from the feed inlet 7 by the conveyor 10, namely, the garbage falls onto the chain belt type fire grate 21 at the bottom of the furnace body along the air window 3 and is gradually accumulated on the air window 3 until the feed inlet 7 is filled with the garbage, so that a closed furnace cover is formed above the furnace chamber 2, firewood is stacked at the chain belt type fire grate 21 at the bottom of the furnace body 1 for ignition, the firewood is ignited and combusted through the ignition port 23, and air required by combustion enters the cracking chamber 4 from the blast pipe 24 and the blast port 22 respectively.

Along with the combustion and decomposition of the garbage on the air window 3, the ash is arranged on the outer layer of the oxidation layer, the ash cannot be attached to the inclined plane to form a fixed layer due to the inclined air window 3, the generated oxidation slag rolls off from the surface of the oxidation layer along the inclined air window 3 under the action of gravity and flows down to the chain belt type grate 21, so that a new oxidation layer and a drying layer are continuously cracked on the air window 3, meanwhile, the unburned garbage ash falling on the chain belt type grate 21 is further burnt out, a large amount of smoke is generated by the garbage combustion and cracking, the cyclone burners 5 are arranged below the inner roof I18, the inner roof II6 and the flame backflow channel 26, the combustible smoke is rotated at high speed by the high-speed rotating air flow, and is further intensively combusted in the cylinder combustion chamber 502 to form an area with high temperature, and the combustible smoke is thrown to the wall of the cylinder combustion chamber 502 by the high-speed rotation action of the air flow, the smoke is fully combusted, and the ash slag after combustion is dissolved and falls on the air window 3. Flame and poisonous harmful gas that produce in the schizolysis thorax 4 are because the negative pressure suction of tail cigarette export 16 for flame and flue gas enter into the flame thorax 13 in the middle of from flame return channel 26, first guide plate 13 and second guide plate 15 block flame, the flue gas is with increasing the burning route, high temperature in the flame thorax 13 makes the poisonous harmful substance of dioxin class do not leave a silk cigarette through blockking the compulsory decomposition many times, the tail cigarette flows to tail cigarette export 16 from opening 14 and discharges and carry out outside purification treatment by the dust collector that drops, reach the effect of cigarette zero release, the ash leakage mouth 30 that the cigarette ash in the flame thorax 13 seted up from inside hall top I18 is regularly cleared up.

The utility model provides an environment-friendly rubbish burning zone is cracking furnace between layer utilizes gravity natural distribution rubbish layer, realizes the schizolysis oxidation in the airtight space with the help of the filler structure, and the ash can't form the fixed bed in this structure, and the oxide layer, the dry layer that form in the schizolysis layer are continuous overlapping, and the nature drops so circulation after having burnt, and the furnace body takes the negative pressure operation, accomplishes the pollutant and burns completely in furnace, purifies poisonous and harmful tail cigarette from the source.

The above description is only a preferred embodiment of the present invention, and the present invention is not limited to the above description, and although the present invention has been disclosed with reference to the preferred embodiment, it is not limited to the present invention, and any skilled person in the art can make various changes or modifications equivalent to the above embodiments without departing from the scope of the present invention, but all the modifications, changes and modifications of the above embodiments by the technical spirit of the present invention are within the scope of the present invention.

Claims

1. The utility model provides an environment-friendly rubbish combustion layer pyrolysis furnace, is equipped with feed inlet (7) including furnace (2) that are located furnace body (1), the top of furnace (2), sets up wind window (3) in furnace (2), and wind window (3) are flowed down the horizontal equidistance of board and are constituteed the plane by many and put gentle slope to one side, are the roof tile formula and arrange, leave gap, its characterized in that between the board that flows down: the chain belt type grate (21) is arranged at the tail end of the air window (3) in the hearth (2), the chain belt type grate (21) is horizontally fixed at the bottom of the hearth (2), air supply openings (22) are formed in the side edges of the chain belt type grate (21), an inner chamber top I (18) is arranged above the chain belt type grate (21), an inner chamber top II (6) is arranged above the air window (3), the hearth (2) is divided into a cracking chamber (4) located below and a flame chamber (11) located above by the inner chamber top I (18) and the inner chamber top II (6), the air window (3) and the chain belt type grate (21) are located in the cracking chamber (4), and a flame backflow channel (26) is reserved between the inner chamber top I (18) and the inner chamber top II (6); the flame chamber is characterized in that a flame chamber partition plate (14) is vertically arranged in the flame chamber (11), two sides of the flame chamber partition plate (14) are sealed with the side wall of the hearth (2), a flow guide channel (12) is reserved between the upper end of the flame chamber partition plate (14) and the top of the hearth (2), a flow guide channel (12) is reserved between the lower end of the flame chamber partition plate (14) and an inner chamber top I (18), a first flow guide plate (13) and a second flow guide plate (15) are obliquely arranged on the left side and the right side of the flame chamber partition plate (14), a flow guide channel (12) is reserved between the first flow guide plate (13) and the inner chamber top II (6), a flow guide channel (12) is reserved between the second flow guide plate (15) and the inner chamber top I (18), tail smoke outlets (16) are arranged on two sides of the hearth (2) below the second flow guide plate (15) in the flame chamber (11), and inspection ports (17) are arranged at the, an ash leakage opening (30) is arranged on the inner chamber top I (18), and an ignition opening (23) is also arranged above the chain belt type fire grate (21).

2. The environment-friendly garbage combustion interlayer cracking furnace of claim 1, which is characterized in that: the inner hall top II (6) and the air window (3) are arranged in parallel.

3. The environment-friendly garbage combustion interlayer cracking furnace of claim 1, which is characterized in that: the inside space roof II (6), the inside space roof I (18) and the below of flame return passage (26) all set up cyclone burner (5), cyclone burner (5) are including drum combustion chamber (502), and the furnace body is located drum combustion chamber (502) outward and locates to set up secondary air intake I (501) and secondary air intake II (503), and secondary air intake I (501) and secondary air intake II (503) set up relatively in the both sides of furnace body (1) and make secondary wind energy get into drum combustion chamber (502) with the tangential.

4. The environment-friendly garbage combustion interlayer cracking furnace of claim 3, characterized in that: and two layers of cyclone burners (5) are arranged below the inner roof II (6).

5. The environment-friendly garbage combustion interlayer cracking furnace of claim 1, which is characterized in that: a conveyor (10) is arranged above the furnace body (1), and the conveyor (10) is obliquely arranged between the feed port (7) and the ground.

6. The environment-friendly garbage combustion interlayer cracking furnace of claim 1, which is characterized in that: an emergency smoke tube (9) is arranged in the flame chamber (11), and an air door is arranged on the emergency smoke tube (9).

7. The environment-friendly garbage combustion interlayer cracking furnace of claim 1, which is characterized in that: an air feeder (25) is arranged below the air window (3), the air feeder (25) supplies air to the air window (3) through an air supply pipe (24), a furnace ash pit (20) is arranged below the chain belt type fire grate (21), and the furnace ash pit (20) is provided with a slag discharging machine (19).

8. The environment-friendly garbage combustion interlayer cracking furnace of claim 1, which is characterized in that: the feed inlet (7) is provided with a travel switch (8) for detecting the filling amount of the garbage.

9. The environment-friendly garbage combustion interlayer cracking furnace of claim 1, which is characterized in that: the lower terminal surface of interior roof I (18) and interior roof II (6) is the arch and pours with the lateral wall integral type of furnace (2), the material of interior roof I (18) and interior roof II (6) adopts fire-resistant high temperature material.

10. The environment-friendly garbage combustion interlayer cracking furnace of claim 1, which is characterized in that: the hearth (2) is also internally provided with transverse reinforcing rods (27), the reinforcing rods (27) are welded on the side walls of the two sides in the hearth (2), and the reinforcing rods (27) are wrapped with refractory bricks.