CN110846077A

CN110846077A - Biomass gasification production equipment and production method using garbage derived raw materials as raw materials

Info

Publication number: CN110846077A
Application number: CN201911333159.4A
Authority: CN
Inventors: 焦耀华; 孙崇哲
Original assignee: Henan Electric Research New Energy Technology Co Ltd
Current assignee: Henan Electric Research New Energy Technology Co Ltd
Priority date: 2019-12-23
Filing date: 2019-12-23
Publication date: 2020-02-28

Abstract

The invention discloses biomass gasification production equipment taking garbage derived materials as raw materials, which comprises a first-stage comprehensive stirring machine, wherein the output end of the first-stage comprehensive stirring machine is communicated with a shredding mechanism through a first conveying mechanism, the output end of the shredding mechanism is communicated with the feed end of a dryer through a second conveying mechanism, the feed end of the dryer is communicated with the discharge end of a biomass raw material bin through a third conveying mechanism, and a hot blast stove is connected outside the dryer; a tail gas exhaust port of the dryer is provided with a tail gas treatment mechanism; the discharge end of the dryer is communicated with a second-stage comprehensive stirrer through a fourth conveying mechanism, a sorting and impurity removing mechanism is erected above the fourth conveying mechanism, the discharge end of the second-stage comprehensive stirrer is communicated with a rod making machine, and the discharge end of the rod making machine is communicated with a biomass gasification furnace through a fifth conveying mechanism; the invention not only effectively solves the problem that the municipal solid waste is difficult to treat, but also reduces the pollution to the environment; but also fully utilizes the domestic garbage and converts the domestic garbage into the biomass gas.

Description

Biomass gasification production equipment and production method using garbage derived raw materials as raw materials

Technical Field

The invention relates to the technical field of biomass gasification equipment, in particular to biomass gasification production equipment and a production method by using garbage derived materials as raw materials.

Background

At present, huge amount of municipal domestic waste is generated every year in the world, the environmental protection and pollution control form serious challenges, at present, the annual average growth rate of the waste is 8.24 percent in the world, in some developing countries, the speed is increased even by more than 10 percent, the annual yield of the municipal waste in China accounts for more than one fourth of the annual yield of the waste in the world, the total amount of the waste in China in the past years is up to 60 hundred million tons, 5 billion and cubic meters of cultivated land is occupied, and the direct economic loss reaches 80 hundred million yuan.

At present, the main modes of garbage disposal are landfill, composting and incineration, the landfill or open-air stacking needs to occupy a large amount of land and cannot realize the reduction of garbage disposal, the garbage incineration can realize the aims of recovering heat energy of urban garbage, reducing volume, reducing weight, sterilizing at high temperature and the like, so the development is relatively rapid, however, the garbage incineration can cause secondary pollution to the atmosphere, the part which cannot be completely combusted still needs to be buried, along with the development of environmental science and technology and the improvement of environmental quality requirements of people, a garbage incineration disposal mode which improves the regeneration energy level of garbage and has high environmental protection benefit and resource recovery efficiency is actively searched, a garbage Derived Fuel (RDF) production technology is developed at home and abroad, so-called garbage Derived raw material is a garbage Derived raw material (such as plastic, fiber, rubber, wood, food and the like) production technology is added into a covering layer after being crushed and dried, the combustible material (such as metal ash, glass, stone, sand and the like, the combustible material (such as columnar, granular, solid ash, food and the like) in-ash residue, the garbage combustible material is a combustible material which can be processed and can be stored after the industrial pyrolysis, the industrial Refuse is a domestic Refuse-burning material which has the advantages of a high calorific value of 3625, a high-7, a high-based synthetic and-7, a high-based synthetic Fuel material which can be produced by-7, a high-by-7, a high-by-7, a high-by-one, a high-by-one, a high.

Aiming at the problem of domestic garbage treatment, the domestic garbage can be processed into the garbage derived raw material meeting the requirement, and then the garbage derived raw material is converted into combustible biomass gas through thermochemical reaction in a gasification furnace.

Disclosure of Invention

The invention aims to solve the problems and adopts the technical scheme that:

a biomass gasification production device taking garbage derived materials as raw materials is characterized by comprising a primary comprehensive stirrer, a shredding mechanism, a dryer, a biomass raw material bin, a hot blast stove, a tail gas treatment mechanism, a sorting and impurity removing mechanism, a rod making machine and a biomass gasification furnace; the output end of the first-stage comprehensive stirrer is communicated with a shredding mechanism through a first conveying mechanism, the output end of the shredding mechanism is communicated with the feed end of a dryer through a second conveying mechanism, the feed end of the dryer is communicated with the discharge end of a biomass raw material bin through a third conveying mechanism, and a hot blast stove is connected outside the dryer; a tail gas exhaust port of the dryer is provided with a tail gas treatment mechanism; the discharge end of drying-machine has the second level through fourth conveying mechanism intercommunication and synthesizes the mixer, the separation edulcoration mechanism has been erect to fourth conveying mechanism top, the discharge end intercommunication system stick machine of the mixer is synthesized to the second level, the discharge end of system stick machine passes through fifth conveying mechanism intercommunication biomass gasification stove.

Further, the first conveying mechanism, the second conveying mechanism, the third conveying mechanism and the fourth conveying mechanism are all belt conveyors.

Further, the fifth conveying mechanism comprises a belt conveyor communicated with the output end of the rod making machine, and the output end of the belt conveyor is communicated with a bucket elevator.

Further, a feed inlet of the first-stage comprehensive stirrer is communicated with a deodorization additive bin.

Further, shredding mechanism is including the one-level shredder and the second grade shredder that communicate in proper order and arrange, and the mixer output is synthesized to the first-level shredder intercommunication, and the output intercommunication of one-level shredder has the second grade shredder.

Furthermore, a calcium oxide additive bin is erected at the upper end of the second conveying mechanism.

Further, the tail gas treatment mechanism comprises a cyclone dust collector communicated with a tail gas discharge port of the dryer, the output end of the cyclone dust collector is communicated with a pulse dust collector, the output end of the pulse dust collector is communicated with a photo-oxidation catalyst, and the output end of the photo-oxidation catalyst is communicated with a draught fan.

Further, select separately edulcoration mechanism includes de-ironing separator and the non-magnetic metal sorter that sets gradually along fourth conveying mechanism direction of delivery.

The biomass gasification furnace comprises a furnace body, wherein an air inlet and a furnace charge feed inlet are formed in the furnace body, a connecting cylinder is installed at the lower end of the furnace body, a fire grate is rotatably installed in the connecting cylinder close to the furnace body end, the fire grate enables the space of the furnace body to be separated from the space of the connecting cylinder, a carbon outlet is formed in the fire grate, and the fire grate is connected with a transmission mechanism for driving the fire grate to rotate; the wall of the connecting cylinder is provided with a gas outlet which is connected with a negative pressure fan, the lower end of the connecting cylinder is connected with a carbon deposition chamber, and the lower end of the carbon deposition chamber is connected with a carbon discharging mechanism.

A biomass gasification production method using garbage derived raw materials as raw materials comprises the following steps:

a. firstly, manually sorting out incombustible substances such as glass, stones, bulk metals, sandy soil and the like in the household garbage;

b. the household garbage after sorting is conveyed to a first-stage stirring machine, the deodorizing additive in the deodorizing additive bin is conveyed to the first-stage stirring machine through a belt conveyor, and the household garbage and the deodorizing additive are stirred in the first-stage stirring machine.

c. The domestic waste with preliminary stirring is carried to the repeated extrusion shredding in the one-level shredder through band conveyer and is carried out preliminary breakage and become bold rubbish granule, then carries preliminary broken domestic waste to the second grade shredder through band conveyer and repeated extrusion shredding further breakage is little rubbish granule.

d. Conveying the small garbage particles into a dryer through a belt conveyor, and outputting a calcium oxide additive in a calcium oxide additive bin onto the belt conveyor to be matched with the small garbage particles; the small garbage particles enter the dryer, meanwhile, the biomass raw material is conveyed into the dryer by the discharge end of the biomass raw material bin through the belt conveyor to be mixed with the small garbage particles, and the combustion heat value of the small garbage particles is improved by adding the biomass raw material;

e. the small garbage particles, the biomass raw material and the calcium oxide additive entering the dryer are repeatedly picked up under the action of backflow blades in the dryer, hot air is provided for the dryer by a hot air furnace, moisture of the small garbage particles, the biomass raw material and the calcium oxide additive is gradually dried and is discharged to a belt conveyor from a discharge port of the dryer, the dust-containing tail gas generated by drying the small garbage particles and the calcium oxide additive is discharged by the dryer, the tail gas is treated by a tail gas treatment mechanism, and the tail gas reaching the standard is discharged from a chimney of an induced draft fan;

f. conveying the small garbage particle mixture dried by the dryer through a sorting and impurity removing mechanism by a belt conveyor, removing residual waste iron impurities and non-magnetic metals in the small garbage particle mixture, conveying the sorted small garbage particle mixture into a second-stage stirrer by the belt conveyor, fully and uniformly stirring, conveying the mixture into a rod making machine by the belt conveyor after stirring, and processing the qualified mixed material into a high-heat value domestic garbage derivative finished product;

g. conveying the high-calorific-value domestic garbage derivative raw material finished product generated in the bar making machine to a feed inlet of a bucket elevator through a belt conveyor, and conveying the high-calorific-value domestic garbage derivative raw material finished product to a feed inlet of a fixed bed biomass gasification furnace through the bucket elevator;

h. the high-calorific-value domestic garbage derived material finished product enters the furnace body from a furnace charge feeding hole, air is sucked into the furnace body from an air inlet, the high-calorific-value domestic garbage derived material finished product respectively passes through four different temperature reaction stages of a drying layer, a pyrolysis layer, an oxidation layer and a reduction layer in the furnace body, the high-calorific-value domestic garbage derived material finished product can form biomass gas and biomass carbon after reacting in the furnace body, the biomass gas can be output from a gas outlet after the reaction is finished, and the biomass carbon enters the carbon deposition chamber through a carbon outlet and is output by a carbon outlet mechanism.

The invention has the following beneficial effects:

1. the invention relates to a biomass gasification production device and a production method using garbage derived materials as raw materials, which take household garbage as raw materials, crush the household garbage through a shredding mechanism, then combine the crushed household garbage with the biomass raw materials for drying, remove impurities from metal impurities, then generate a finished product of the garbage derived materials which has high heat value and is convenient for storage and transportation, and the finished product of the garbage derived materials is conveyed to a biomass gasification furnace for processing, so that biomass gas and biomass carbon can be generated, the energy in the household garbage is fully recycled in the whole process, and tail gas meets the emission requirement, thereby effectively solving the problem that the municipal household garbage is difficult to process, improving the utilization rate of garbage resources and reducing the pollution to the environment; the household garbage is fully utilized and converted into biomass gas, and the generated biomass gas can replace fossil energy such as coal, petroleum, natural gas and the like, so that national energy resources are protected.

2. The household garbage crusher adopts a shredding mechanism to crush the household garbage, adopts a multi-stage crushing technology of combining two double-shaft shredders, repeatedly extrudes and shreds the household garbage into large garbage particles by a first-stage shredder, further crushes the household garbage into small garbage particles by repeatedly extruding and shredding by a second-stage shredder, and crushes the household garbage into small particles meeting the requirements through a process of repeatedly extruding and crushing for many times.

3. According to the invention, the biomass gasification furnace is adopted to convert the garbage derived material into the biomass gas, the biomass gasification furnace enables the contact area of the material and the grate to be larger, the gasification furnace smoothly discharges carbon under the action of rotation of the grate, the carbon discharging speed is high, and the carbon discharging mechanism is matched and installed at the bottom of the gasification furnace, so that the biomass carbon can fall into the carbon deposition chamber and is automatically output by the carbon discharging mechanism, thus the manpower input can be reduced, the separation of the biomass gas and the biomass carbon is realized, and the working efficiency is improved.

4. The invention adopts a tail gas treatment device, and treats dust-containing particles in the tail gas of the dryer to be below the emission requirement by a two-stage dust removal technology combining cyclone dust removal and pulse dust removal; the photo-oxygen purifier catalysis technology is adopted to remove atmospheric pollutants such as hydrogen sulfide, ammonia gas and thiols in the tail gas and remove various foul odors, so that the tail gas generated in the process of biomass gasification of livestock and poultry manure is treated, the pollution to the environment is reduced, and the emission requirement is met.

Drawings

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

FIG. 2 is a schematic view of a biomass gasification furnace;

FIG. 3 is a partial schematic view of the internal structure of the biomass gasification furnace;

fig. 4 is an enlarged view of the internal structure a of the biomass gasification furnace.

Detailed Description

The invention is further described below with reference to the accompanying drawings.

As shown in fig. 1, a biomass gasification production device using garbage derived materials as raw materials comprises a first-stage comprehensive stirrer 1, a shredding mechanism, a dryer 7, a biomass raw material bin 12, a hot blast stove 6, a tail gas treatment mechanism, a separation and impurity removal mechanism, a rod making machine 14 and a biomass gasification furnace 8; the output end of the first-stage comprehensive stirrer 1 is communicated with a shredding mechanism through a first conveying mechanism, the output end of the shredding mechanism is communicated with the feed end of a dryer 7 through a second conveying mechanism, preferably, in the embodiment, the dryer 7 is a rotary drum dryer 7, the feed end of the dryer 7 is communicated with the discharge end of a biomass raw material bin 12 through a third conveying mechanism, in the embodiment, a biomass raw material stored in the biomass raw material bin 12 is sawdust, the sawdust is mixed with a refuse derived material, and the combustion heat value of refuse particles is improved by adding the biomass raw material; the dryer 7 is externally connected with a hot blast stove 6; a tail gas discharge port of the dryer 7 is provided with a tail gas treatment mechanism; the discharge end of the dryer 7 is communicated with a second-stage comprehensive stirrer 13 through a fourth conveying mechanism, a sorting and impurity removing mechanism is erected above the fourth conveying mechanism, the discharge end of the second-stage comprehensive stirrer 13 is communicated with a rod making machine 14, and the discharge end of the rod making machine 14 is communicated with a biomass gasification furnace 8 through a fifth conveying mechanism; preferably, in this embodiment, the first conveying mechanism, the second conveying mechanism, the third conveying mechanism and the fourth conveying mechanism are all belt conveyors 2; the fifth conveying mechanism comprises a belt conveyor 2 communicated with the output end of the rod making machine 14, and the output end of the belt conveyor 2 is communicated with a bucket elevator 21; the adoption of the bucket elevator 21 can reduce the conveying difficulty and save space, and the finished garbage derived material products made by the rod making machine 14 are conveyed into the fixed bed downdraft biomass gasification furnace 8 in a vertical conveying mode.

As shown in figure 1, in order to reduce the odor generated during the garbage treatment and influence the working environment, the feed inlet of the first-stage comprehensive stirring machine 1 is communicated with a deodorization additive bin 3, so that the household garbage and the deodorization additive are stirred and mixed in the first-stage comprehensive stirring machine 1, and the odor of the household garbage is reduced.

As shown in fig. 1, in order to carry out the breakage with domestic waste, satisfy the use specification of system excellent machine 14, domestic waste need carry out the breakage through shredder mechanism, shredder mechanism is including the one-level shredder 41 of the first-level comprehensive mixer 1 output of intercommunication, and the output intercommunication of one-level shredder 41 has second grade shredder 42, one-level shredder 41, second grade shredder 42 are the biax shredder, and one-level shredder 41 extrudes repeatedly and shreds domestic waste for bold rubbish granule, then carries preliminary broken domestic waste to extrude repeatedly in the second grade shredder 42 through band conveyer 2 and shreds further the breakage to little rubbish granule, adopts the multistage crushing technique of two biax shredders organic phase combinations, through the broken technology of repeated extrusion many times, shreds domestic waste to the tiny particle that accords with the requirement.

As shown in fig. 1, when domestic waste is treated, calcium oxide additive bin 5 is erected at the upper end of second conveying mechanism, calcium oxide additive is arranged in calcium oxide additive bin 5, an automatic feeder is installed at the lower part of calcium oxide additive bin 5, the automatic feeder of calcium oxide additive bin 5 is opened in work, the calcium oxide additive can be output to belt conveyor 2 to be matched with small garbage particles, the calcium oxide additive can be mixed with the small garbage particles in dryer 7 at the next stage, harmful gases such as hydrogen chloride and sulfur dioxide generated by thermal decomposition of plastics can be eliminated by the calcium oxide additive, secondary pollutants such as dioxin are reduced, and environmental protection is facilitated.

As shown in fig. 1, in order to treat the tail gas generated during the process of gasifying the biomass derived raw material and reduce the pollution to the environment, the tail gas generated during the processing of the biomass derived raw material needs to be treated, the tail gas treatment mechanism comprises a cyclone dust collector 94 communicated with a tail gas discharge port of the dryer 7, the output end of the cyclone dust collector 94 is communicated with a pulse dust collector 93, the output end of the pulse dust collector 93 is communicated with a photo-oxidation catalyst 92, the photo-oxidation catalyst 92 can remove atmospheric pollutants such as hydrogen sulfide, ammonia gas, mercaptan and the like in the tail gas, and various foul smells are removed, the output end of the photo-oxidation catalyst 92 is communicated with an induced draft fan 91, the induced draft fan 91 is used for absorbing the tail gas discharged from the tail gas discharge port of the dryer 7 to a cyclone dust collector 94, a pulse dust collector 93 and the photo-oxidation catalyst 92 in sequence, the tail gas is discharged by the induced draft fan 91 after being processed, the tail gas treatment device reduces the pollution of the tail gas generated when the garbage derived materials are processed to the air.

As shown in fig. 1, in order to remove the incombustible impurities in the small garbage particle mixture dried by the dryer 7 and avoid affecting the quality of the high-calorific-value domestic garbage derived raw material finished product produced in the subsequent process, the incombustible impurities in the small garbage particle mixture need to be removed by a sorting and impurity-removing mechanism which comprises an iron remover 10 and a non-magnetic metal sorting machine 11 which are arranged in sequence along the conveying direction of the fourth conveying mechanism; the iron remover 10 removes the residual iron impurity in the dried small-particle domestic garbage, and the non-magnetic metal separator 11 removes the non-magnetic metal particles in the small-particle domestic garbage after the iron impurity removal, so that the metal substances in the garbage particles are removed by adopting the technology of combining the iron remover 10 with the non-magnetic metal separator 11.

In this embodiment, as shown in fig. 2 to 4, a biomass gasification furnace 8 of a biomass gasification production facility using waste derived materials as raw materials comprises a furnace body 814, an upper end of the furnace body 814 is provided with an upper end cover, the upper end cover is provided with an air inlet 81 and a charging material inlet 82, a connecting cylinder 811 is installed at the lower end of the furnace body 814, and preferably, the lower end of the furnace body 814 in this embodiment is coaxially installed with the connecting cylinder 811; the inside furnace body 814 end that is close to of connecting cylinder 811 gyration is installed the grate 83, and the grate 83 realizes furnace body 814 space and connecting cylinder 811 spatial separation, is equipped with out the carbon hole on the grate 83, the grate 83 is connected with drive grate 83 pivoted drive mechanism 84, and the air inhales furnace body 814 from air inlet 81, from last to down through the reaction layer, the reaction layer divide into from the top down: the biomass fuel gas is generated through a drying layer, a pyrolysis layer, an oxidation layer and a reduction layer, wherein the reduction layer is mainly biomass carbon and is in contact with a grate 43, the reaction temperature of the drying layer is set to be below 300 ℃, the reaction temperature of the pyrolysis layer is set to be 300 plus 800 ℃, the reaction temperature of the oxidation layer is set to be 800 plus 1000 ℃, and the garbage derived raw material finished product reacts in different reaction layers in a furnace body 814 to finally form the biomass carbon of the reduction layer, so that the garbage derived material finished product is changed into the biomass fuel gas and the biomass garbage derived raw material finished product carbon; the wall of the connecting cylinder 811 is provided with a gas outlet 85, the gas outlet 85 is connected with a negative pressure fan 81, so that a negative pressure environment is formed in the furnace body 814, biomass gas is led out and air is sucked, the lower end of the connecting cylinder 811 is connected with a carbon deposition chamber 812, preferably, in the embodiment, a conical space is arranged in the carbon deposition chamber 812, the large-conical-diameter end of the conical space faces one side of the connecting cylinder 811, and the conical space can prevent biomass carbon from being deposited in the carbon deposition chamber 812, so that the biomass carbon can be smoothly output; the lower end of the carbon deposition chamber 812 is connected with a carbon discharging mechanism 86 of biomass carbon.

As shown in fig. 2-4, in order to realize a larger contact area between the finished product of the refuse derived material and the grate 83, and under the action of rotation of the grate 83, carbon is smoothly discharged from the gasification furnace, and the carbon discharging speed is high, a conical surface is convexly arranged on one end of the grate 83 facing the furnace body 814, and carbon discharging holes are arranged on the conical surface; the conical surface can increase the contact area between the finished garbage derived material and the grate 83, and the grate 83 rotates rapidly to enable the finished garbage derived material to enter the carbon deposition chamber 812 from the carbon outlet.

As shown in fig. 2-4, in order to realize the rotation of the grate 83, the transmission mechanism 84 includes a large gear ring 87 installed on the periphery of the grate 83 and a small gear 89 engaged with the large gear ring 87, preferably, the grate 83 is fixedly connected with the large gear ring 87, the small gear 89 is connected with a sprocket 810 through a key shaft, in this embodiment, the sprocket 810 is driven by a motor to move, the motor realizes the rotation of the grate 83 through the transmission mechanism 44, so that the finished products of the waste derived raw materials can be uniformly distributed under the rotation of the grate 83, the finished products of the waste derived raw materials are not easy to bridge and accumulate, the gasification reaction is uniform, the gasification efficiency is high, and the generation of wood tar and nitrogen is.

As shown in fig. 2 to 4, in order to position the fire grate 83 and ensure that the fire grate 83 does not move axially along the furnace body 814 during the rotation process, the upper end of the large gear ring 87 is provided with an upper limit portion 813 installed inside the furnace body 814, the lower end of the large gear ring 87 is provided with a lower limit portion 88 installed inside the connecting cylinder 811, and a ball is installed between the lower limit portion 88 and the large gear ring 87, and the ball facilitates the rotation of the large gear ring 87, so that the rotation of the fire grate 83 can be realized.

As shown in fig. 2-4, in order to output the biomass carbon in the carbon deposition chamber 812 to the gasification furnace, so as to conveniently and quickly produce the biomass carbon with a considerable additional value, so as to realize co-production of carbon gas and improve the utilization efficiency of biomass energy, the carbon discharge mechanism 86 includes a carbon discharge passage 861 communicated with the carbon deposition chamber 812, a spiral output shaft 862 is installed in the carbon discharge passage 861 along the axial direction thereof, an output blade 863 is installed on the spiral output shaft 862 in a spiral manner, the output blade 863, the spiral output shaft 862 and the carbon discharge passage 861 form a spiral conveying passage of the biomass carbon, and a power mechanism is installed at one end of the spiral output shaft 862, and in a preferred embodiment, the power mechanism is a motor.

In this embodiment, the first-stage comprehensive stirrer 1, the second-stage comprehensive stirrer 13, the first-stage shredder 41, the second-stage shredder 42, the iron remover 10, the non-magnetic metal separator 11, the belt conveyor 2, the rotary dryer 7, the cyclone 94, the pulse dust collector 93, the photo-oxidation catalyst 92, the induced draft fan 91, the rod making machine 14, and the like are prior art, and are not described herein again.

The working process of the invention is as follows:

b. the household garbage after sorting is conveyed to a first-stage stirring machine, the deodorizing additive in the deodorizing additive bin 3 is conveyed to the first-stage stirring machine through a belt conveyor 2, and the household garbage and the deodorizing additive are stirred in the first-stage stirring machine.

c. The domestic waste with preliminary stirring is carried to the repeated extrusion shredding in one-level shredder 41 through band conveyer 2 and is carried out preliminary breakage and become bold rubbish granule, then carries preliminary broken domestic waste to the second grade shredder 42 through band conveyer 2 in repeated extrusion shredding further breakage and become the fritter rubbish granule.

d. Conveying the small garbage particles into a dryer 7 through a belt conveyor 2, and outputting a calcium oxide additive in a calcium oxide additive bin 5 onto the belt conveyor 2 to be matched with the small garbage particles; the small garbage particles enter the dryer 7, meanwhile, the biomass raw material is conveyed into the dryer 7 by the belt conveyor 2 through the discharge end of the biomass raw material bin 12 to be mixed with the small garbage particles, and the combustion heat value of the small garbage particles is improved by adding the biomass raw material;

e. the small garbage particles, the biomass raw material and the calcium oxide additive which enter the dryer 7 are repeatedly picked up under the action of the backflow blade in the dryer 7, the hot air furnace 6 provides hot air for the dryer 7, the moisture of the small garbage particles, the biomass raw material and the calcium oxide additive is gradually dried and discharged from a discharge port of the dryer 7 to the belt conveyor 2, the dryer 7 discharges dust-containing tail gas generated by drying the small garbage particles and the calcium oxide additive, the tail gas enters the cyclone dust collector 94 under the action of the draught fan 91 to remove large particle impurities in the tail gas and reduce the temperature of the tail gas, then the tail gas enters a pulse dust collector 93 to further remove particle impurities in the tail gas, then the tail gas enters a photo-oxidation catalyst 92 to remove atmospheric pollutants such as hydrogen sulfide, ammonia gas and thiols in the tail gas, remove various malodorous gases, and the tail gas which reaches the standard after treatment is discharged from a chimney of a draught fan 91;

f. conveying the small garbage particle mixture dried by the dryer 7 through the belt conveyor 2 in sequence, removing residual waste iron impurities and non-magnetic metals in the small garbage particle mixture by the iron remover 10 and the non-magnetic metal separator 11, conveying the separated small garbage particle mixture to a second-stage stirrer through the belt conveyor 2, fully and uniformly stirring, conveying the mixture to the rod making machine 14 through the belt conveyor 2 after stirring is completed, and processing the qualified mixed material into a high-heat value domestic garbage derivative finished product;

g. conveying the high-calorific-value domestic garbage derivative raw material finished product generated in the bar making machine 14 to a feed inlet of a bucket elevator 21 through a belt conveyor 2, and conveying the high-calorific-value domestic garbage derivative raw material finished product to a feed inlet of a fixed bed biomass gasification furnace 8 through the bucket elevator 21;

The invention relates to biomass gasification production equipment and a production method using garbage derived materials as raw materials, which take household garbage as raw materials, crush the household garbage through a shredding mechanism, then combine the crushed household garbage with the biomass raw materials for drying, remove impurities from metal impurities, then generate a garbage derived material finished product, and convey the garbage derived material finished product to a biomass gasification furnace 8 for processing, so that biomass gas and biomass carbon can be generated, the energy in the household garbage is fully utilized as resources in the whole process, and tail gas meets the emission requirement, thereby effectively solving the problem that the municipal household garbage is difficult to process, improving the utilization rate of garbage resources, and reducing the pollution to the environment. The household garbage is fully utilized and converted into biomass gas, and the generated biomass gas can replace fossil energy such as coal, petroleum, natural gas and the like, so that national energy resources are protected.

The present embodiment is not intended to limit the shape, material, structure, etc. of the present invention in any way, and any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention are within the scope of the technical solution of the present invention.

In the description of the present invention, it is to be understood that the terms "central", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be considered as limiting the scope of the present invention.

If the terms "first," "second," etc. are used herein to define parts, those skilled in the art will recognize that: the use of "first" and "second" is merely for convenience in describing the invention and to simplify the description, and unless otherwise stated the above words are not intended to have a special meaning.

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: it is to be understood that modifications may be made to the technical solutions described in the foregoing embodiments, or equivalents may be substituted for some of the technical features thereof, but such modifications or substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A biomass gasification production device taking garbage derived materials as raw materials is characterized by comprising a primary comprehensive stirrer, a shredding mechanism, a dryer, a biomass raw material bin, a hot blast stove, a tail gas treatment mechanism, a sorting and impurity removing mechanism, a rod making machine and a biomass gasification furnace; the output end of the first-stage comprehensive stirrer is communicated with a shredding mechanism through a first conveying mechanism, the output end of the shredding mechanism is communicated with the feed end of a dryer through a second conveying mechanism, the feed end of the dryer is communicated with the discharge end of a biomass raw material bin through a third conveying mechanism, and a hot blast stove is connected outside the dryer; a tail gas exhaust port of the dryer is provided with a tail gas treatment mechanism; the discharge end of drying-machine has the second level through fourth conveying mechanism intercommunication and synthesizes the mixer, the separation edulcoration mechanism has been erect to fourth conveying mechanism top, the discharge end intercommunication system stick machine of the mixer is synthesized to the second level, the discharge end of system stick machine passes through fifth conveying mechanism intercommunication biomass gasification stove.

2. The apparatus for producing biomass from waste derived material as claimed in claim 1, wherein the first, second, third and fourth conveyors are belt conveyors.

3. The apparatus for producing biomass from waste derived material as claimed in claim 2, wherein the fifth conveying mechanism comprises a belt conveyor connected to the output end of the rod making machine, and the output end of the belt conveyor is connected to a bucket elevator.

4. The apparatus for producing biomass from raw materials derived from garbage as claimed in claim 3, wherein the feed inlet of the first-stage mixer is connected to a bin for deodorizing additives.

5. The apparatus for producing a biomass from a waste derived material as claimed in claim 4, wherein the shredding mechanism comprises a primary shredder and a secondary shredder sequentially connected to each other, the primary shredder is connected to the output end of the first integrated mixer, and the output end of the primary shredder is connected to the secondary shredder.

6. The apparatus for producing biomass from garbage derived material as raw material according to claim 5, wherein a calcium oxide additive bin is installed at the upper end of the second conveying mechanism.

7. The apparatus for producing biomass from waste derived material as claimed in claim 6, wherein the exhaust gas treatment means comprises a cyclone connected to the exhaust gas outlet of the dryer, the output of the cyclone is connected to a pulse dust collector, the output of the pulse dust collector is connected to a photo-oxidation catalyst, and the output of the photo-oxidation catalyst is connected to a draught fan.

8. The apparatus for producing a biomass from a waste derivative as a raw material according to claim 7, wherein said sorting and impurity-removing means comprises an iron remover and a non-magnetic metal sorter arranged in this order along the conveying direction of the fourth conveying means.

9. The apparatus for producing biomass from raw materials derived from garbage as claimed in claim 8, wherein the biomass gasification furnace comprises a furnace body, the furnace body is provided with an air inlet and a charging material inlet, the lower end of the furnace body is provided with a connecting cylinder, a grate is rotatably mounted inside the connecting cylinder near the furnace body end, the grate separates the space of the furnace body from the space of the connecting cylinder, the grate is provided with a carbon outlet, and the grate is connected with a transmission mechanism for driving the grate to rotate; the wall of the connecting cylinder is provided with a gas outlet which is connected with a negative pressure fan, the lower end of the connecting cylinder is connected with a carbon deposition chamber, and the lower end of the carbon deposition chamber is connected with a carbon discharging mechanism.

10. The method for producing biomass by gasifying waste derived material as claimed in claim 9, wherein a. non-combustible materials such as glass, stone, bulk metal, sand and soil in the domestic waste are first separated manually;

b. conveying the sorted household garbage into a first-stage stirrer, conveying the deodorizing additive in a deodorizing additive bin into the first-stage stirrer through a belt conveyor, and stirring the household garbage and the deodorizing additive in the first-stage stirrer;

c. conveying the primarily stirred household garbage to a primary shredder through a belt conveyor, repeatedly extruding and shredding the household garbage to primarily crush the household garbage into large garbage particles, and conveying the primarily crushed household garbage to a secondary shredder through the belt conveyor, repeatedly extruding and shredding the household garbage to further crush the household garbage into small garbage particles;