CN116515534A - Biomass gasification combustion equipment - Google Patents
Biomass gasification combustion equipment Download PDFInfo
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- CN116515534A CN116515534A CN202310531994.9A CN202310531994A CN116515534A CN 116515534 A CN116515534 A CN 116515534A CN 202310531994 A CN202310531994 A CN 202310531994A CN 116515534 A CN116515534 A CN 116515534A
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- furnace body
- rectangular screen
- scraping
- biomass
- fixedly connected
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- 239000002028 Biomass Substances 0.000 title claims abstract description 57
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 28
- 238000002309 gasification Methods 0.000 title claims abstract description 23
- 238000007790 scraping Methods 0.000 claims abstract description 89
- 238000007599 discharging Methods 0.000 claims abstract description 45
- 239000002893 slag Substances 0.000 claims abstract description 16
- 239000012535 impurity Substances 0.000 claims description 70
- 238000000034 method Methods 0.000 claims description 29
- 230000008569 process Effects 0.000 claims description 29
- 239000000463 material Substances 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 8
- 238000005192 partition Methods 0.000 claims description 4
- 239000010813 municipal solid waste Substances 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims description 2
- 238000001914 filtration Methods 0.000 abstract description 6
- 239000007789 gas Substances 0.000 description 52
- 230000000694 effects Effects 0.000 description 10
- 238000005336 cracking Methods 0.000 description 9
- 238000006243 chemical reaction Methods 0.000 description 8
- 239000002994 raw material Substances 0.000 description 6
- 230000009471 action Effects 0.000 description 5
- 238000001035 drying Methods 0.000 description 4
- 239000004744 fabric Substances 0.000 description 4
- 239000010881 fly ash Substances 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000000197 pyrolysis Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 2
- 229910052721 tungsten Inorganic materials 0.000 description 2
- 239000010937 tungsten Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000002956 ash Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 125000001183 hydrocarbyl group Chemical group 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000006722 reduction reaction Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Gasification And Melting Of Waste (AREA)
Abstract
The invention relates to the technical field of biomass gasification combustion, in particular to equipment for biomass gasification combustion; comprising the following steps: the furnace body is provided with an air outlet pipe arranged at the upper part of the furnace body and a slag discharging port arranged at the lower part of the furnace body; the outer wall of the furnace body is fixedly connected with an air inlet assembly and a feeding assembly which are communicated with the inside of the furnace body; the furnace body is internally fixedly connected with a fire grate; the lower end of the furnace body is supported by a bracket; a rectangular screen; the rectangular screen is fixedly connected to the inner side of the air outlet pipe with the rectangular cross section; scraping the strip; the scraping strips are positioned below the rectangular screen and are in contact with the lower end face of the rectangular screen; according to the invention, the piston is driven to move in the driving shell by the gas pressure in the furnace body and the spring, so that the piston drives the scraping strip to scrape the rectangular screen through the sliding rod, thereby dredging the rectangular screen, further ensuring the filtering and purifying of the rectangular screen to the combustible biomass gas, and improving the purity of the produced combustible biomass gas.
Description
Technical Field
The invention relates to the technical field of biomass gasification combustion, in particular to equipment for biomass gasification combustion.
Background
The biomass gas making principle is a technology of biomass thermochemical conversion, namely biomass fuel is cracked into combustible gas with lower molecular weight under the condition of incomplete combustion, wherein organic hydrocarbon chains with higher molecular weight are cracked; the gasification process of biomass is a complex physicochemical reaction process carried out under specific environmental conditions, and is a process of taking biomass as a raw material, taking air as a gasifying agent, and converting the biomass into gas dye through reaction separation under specific conditions. Sequentially undergoes a series of physicochemical reactions such as drying, cracking, oxidation, reduction, combustion, heat generation and the like. The biomass is subjected to high-temperature reaction, and then organic matters are volatilized and decomposed into combustible biomass fuel gas and ash carbon.
The combustible biomass gas is discharged from bottom to top along the gas outlet pipe, and impurities such as fly ash and the like can be generated in the combustion process of the biomass in the furnace, and part of the impurities can be taken away along with the combustible biomass gas, so that the purity of the combustible biomass gas is influenced, and the combustion effect of the combustible biomass gas is influenced.
In view of the above, the present invention provides a device for gasification combustion of biomass, which solves the above technical problems.
Disclosure of Invention
In order to make up the defects of the prior art, the invention provides biomass gasification combustion equipment, and the piston is driven to move in the driving shell by the gas pressure in the furnace body and the spring, so that the piston drives the scraping strip to scrape the rectangular screen through the sliding rod, thereby dredging the rectangular screen, further ensuring the filtering and purifying of the rectangular screen to the combustible biomass gas, and improving the purity of the produced combustible biomass gas.
The technical scheme adopted for solving the technical problems is as follows: the invention relates to a device for gasifying and combusting biomass, which comprises:
the furnace body is provided with an air outlet pipe arranged at the upper part of the furnace body and a slag discharging port arranged at the lower part of the furnace body;
the outer wall of the furnace body is fixedly connected with an air inlet assembly and a feeding assembly which are communicated with the inside of the furnace body;
the furnace body is internally fixedly connected with a fire grate; the lower end of the furnace body is supported by a bracket;
the slag discharging port is arranged at the lower position of the side wall of the furnace body; the position of the fire grate in the vertical direction is higher than the slag discharge port; the air inlet component is communicated with the high-temperature cracking chamber in the furnace body and is used for air inlet; the feed assembly is higher than the feed assembly; the feeding component is communicated with the high-temperature cracking chamber in the furnace body and is used for feeding; the air outlet pipe is fixedly connected and communicated with the upper part of the furnace body;
the biomass gasification combustion device further comprises:
a rectangular screen; the rectangular screen is fixedly connected to the inner side of the air outlet pipe with the rectangular cross section;
scraping the strip; the scraping strips are positioned below the rectangular screen and are in contact with the lower end face of the rectangular screen; the upper end of the scraping strip is contacted with the lower end of the rectangular screen, and the scraping strip covers the rectangular screen after moving;
a driving case; the driving shell is fixedly connected to the outer side of the upper end of the furnace body; the driving shell is a square body and is positioned at one side of the air outlet pipe;
a piston; the piston is connected to the inner side of the driving shell in a sliding and sealing manner; the piston divides the interior of the driving shell into a rod cavity and a rodless cavity;
a slide bar; one end of the sliding rod is fixedly connected to one side of the piston, which is close to the rectangular screen, and the other end of the sliding rod extends into the air outlet pipe; the other end of the sliding rod is in sliding sealing connection with the air outlet pipe; the other end of the sliding rod is fixedly connected with the scraping strip;
a spring; the spring is positioned in the rod cavity; and is sleeved on the slide bar; the rodless cavity is communicated with the inside of the furnace body through an air inlet hole.
Preferably, the scraping strip consists of a scraping seat and a scraping blade; the cross section of the scraping seat is inverted Y-shaped; the outer edge of the scraping seat is inwards recessed to form a trash discharging channel; the scraping blade is fixedly connected to the position, close to the rectangular screen, of the impurity discharging channel; the scraping blade is contacted with the lower end face of the rectangular screen; the position inside the furnace body, which is close to the two opposite inner walls, is fixedly connected with a baffle plate; a first channel is formed between the partition plate and the corresponding inner wall of the furnace body; two lower ports of the impurity discharging channel extend to the corresponding first channel; the lower port of the first channel is communicated with the slag discharging port; the slide bar is fixedly connected with the scraping seat.
Preferably, a dredging rope is arranged in the impurity removing channel; the dredging rope is lapped on the impurity removing channel; the end parts of the dredging ropes penetrate through two lower ports of the impurity discharging channel and extend into the corresponding first channel; the dredging rope is made of a high-temperature-resistant material, such as tungsten or steel material.
Preferably, the interiors of the first channels are provided with corrugated grooves; the corrugated grooves are arranged on two opposite groove walls of the furnace body; the wave crests and wave troughs in the corresponding positions in the two corrugated grooves are oppositely arranged; the end parts of the dredging ropes are connected with the corresponding corrugated grooves in a sliding mode through sliding blocks.
Preferably, a first hole is formed in the outer wall of one end, close to the piston, of the sliding rod; the other end of the first hole penetrates through the sliding rod and extends to the inner side of the scraping seat; the scraping blade can bend and deform in the process of scraping the rectangular screen; the rod cavity is communicated with the air outlet pipe through a second hole; the second hole is positioned above the rectangular screen; check valves are arranged in the first hole and the second hole; the slide bar is connected with the driving shell in a sliding and sealing way.
Preferably, the air inlet hole is in an inverted L shape; a dredging piece penetrates through the air inlet hole; one end of the dredging piece extends into the rodless cavity and is fixedly connected with the piston, and the other end extends into the furnace body; a gap is reserved between the dredging piece and the air inlet hole.
Preferably, the dredging piece is a coil spring; the other end of the coil spring is positioned in the furnace body and is arranged in a winding shape.
Preferably, the coil spring is provided with a front end surface and a back end surface; protrusions are arranged at non-corresponding positions on the front end face and the back end face; the protrusions on the front end face and the back end face are not in one-to-one correspondence.
The beneficial effects of the invention are as follows:
1. according to the invention, the piston is driven to move in the driving shell by the gas pressure in the furnace body and the spring, so that the piston drives the scraping strip to scrape the rectangular screen through the sliding rod, thereby dredging the rectangular screen, further ensuring the filtering and purifying of the rectangular screen to the combustible biomass gas, and improving the purity of the produced combustible biomass gas.
2. According to the invention, impurities on the rectangular screen mesh are scraped and are discharged independently, so that the impurities are prevented from directly falling on biomass in the furnace body, the reaction effect of the biomass is prevented from being influenced, the impurities are prevented from being secondarily driven to the rectangular screen mesh, and the dredging effect of the rectangular screen mesh is improved.
3. According to the invention, the middle part of the dredging rope is extruded in the swinging process of the scraping blade, so that the middle part of the dredging rope is bent after being extruded, the end part of the dredging rope moves towards the impurity discharging channel after being extruded in the middle part, the dredging rope is restored after the scraping blade is far away from the middle part of the dredging rope, and the dredging rope is pressed to move to cooperate with the swinging process of the dredging rope, so that the impurity discharging channel is dredged, and impurities can smoothly flow into the first channel along the impurity discharging channel.
Drawings
The invention will be further described with reference to the drawings and embodiments.
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a cross-sectional view of the present invention;
FIG. 3 is an enlarged view at A in FIG. 2;
fig. 4 is an enlarged view at B in fig. 2;
fig. 5 is an enlarged view at C in fig. 2;
FIG. 6 is an enlarged view at D in FIG. 2;
FIG. 7 is a view showing a position structure of a wiper strip inside a furnace body in the present invention;
FIG. 8 is a perspective view of a wiper strip and slide bar;
FIG. 9 is a diagram of the position of a corrugation groove in the present invention;
fig. 10 is an enlarged view at E in fig. 9.
In the figure: furnace body 1, outlet duct 11, slag discharging port 12, support 13, inlet port 14, air intake assembly 2, feeding assembly 3, fire grate 4, rectangular screen 5, scraping strip 6, scraping seat 61, scraping blade 62, impurity discharging channel 63, partition plate 64, first channel 65, dredging rope 66, ripple groove 67, slide block 68, driving shell 7, piston 71, rod cavity 72, rodless cavity 73, slide bar 74, spring 75, first hole 76, second hole 77, dredging piece 8, and protrusion 81.
Detailed Description
The invention is further described in connection with the following detailed description in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the invention easy to understand.
As shown in fig. 1 to 10, the present invention is described in detail in the following embodiments:
example 1:
an apparatus for gasification combustion of biomass comprising:
the furnace body 1, an air outlet pipe 11 arranged at the upper part of the furnace body 1 and a slag discharging port 12 arranged at the lower part of the furnace body;
the outer wall of the furnace body 1 is fixedly connected with an air inlet assembly 2 and a feeding assembly 3 which are communicated with the inside of the furnace body;
the furnace body 1 is internally fixedly connected with a fire grate 4; the lower end of the furnace body 1 is supported by a bracket 13;
the slag discharging port 12 is arranged at the lower position of the side wall of the furnace body 1; the position of the fire grate 4 in the vertical direction is higher than the slag discharge port 12; the air inlet component 2 is communicated with the high-temperature cracking chamber in the furnace body 1 and is used for air inlet; the feeding assembly 3 is higher than the feeding assembly 3; the feeding component 3 is communicated with the high-temperature cracking chamber in the furnace body 1 and is used for feeding; the air outlet pipe 11 is fixedly connected and communicated with the upper part of the furnace body 1;
the biomass gasification combustion device further comprises:
a rectangular screen 5; the rectangular screen 5 is fixedly connected to the inner side of an air outlet pipe 11 with a rectangular section;
a scraping strip 6; the scraping strip 6 is positioned below the rectangular screen 5 and is in contact with the lower end face of the rectangular screen 5; the upper end of the scraping strip 6 is contacted with the lower end of the rectangular screen 5, and the scraping strip 6 covers the rectangular screen 5 after moving;
a drive housing 7; the driving shell 7 is fixedly connected to the outer side of the upper end of the furnace body 1; the driving shell 7 is a square body, and the driving shell 7 is positioned at one side of the air outlet pipe 11;
a piston 71; the piston 71 is connected to the inner side of the driving shell 7 in a sliding and sealing manner; the piston 71 divides the interior of the drive housing 7 into a rod-shaped cavity 72 and a rodless cavity 73;
a slide bar 74; one end of the sliding rod 74 is fixedly connected to one side of the piston 71, which is close to the rectangular screen 5, and the other end extends into the air outlet pipe 11; the other end of the sliding rod 74 is in sliding sealing connection with the air outlet pipe 11; the other end of the sliding rod 74 is fixedly connected with the scraping strip 6;
a spring 75; the spring 75 is located within the rod cavity 72; and is sleeved on the slide bar 74; the rodless cavity 73 is communicated with the interior of the furnace body 1 through an air inlet hole 14;
during operation, the combustible biomass gas is discharged from bottom to top along the gas outlet pipe 11, impurities such as fly ash and the like are generated in the combustion process of the biomass in the furnace, and part of the impurities are taken away along with the combustible biomass gas, so that the purity of the combustible biomass gas is influenced, and the combustion effect of the combustible biomass gas is influenced;
before biomass gasifying and burning, the biomass particle is first loaded on the fire grate 4, the biomass particle is added into the high temperature cracking chamber through the feeding component 3, then the charcoal on the fire grate 4 is ignited, the air inlet component 2 is started to supply air into the high temperature cracking chamber, the biomass particle moves from top to bottom after entering the high temperature cracking chamber, the raw material completes the drying and pyrolysis processes in the high temperature gas heating process, the gasification is divided into four stages, the first stage is the drying stage, the water vapor in the raw material is completely separated out to play a drying role, the second stage is the cracking stage, and the raw material mainly generates CO and H 2 、CH 4 、CO 2 The third stage is a reduction stage, and the raw materials are pyrolyzed to separate out CO and H 2 The fourth stage is an oxidation stage, air enters the bottom of the furnace body 1 to carry out under-oxygen pyrolysis oxidation reaction on materials to generate high-temperature combustible gas and provide heat to supply heat to the upper-layer materials for reaction, the combustible gas generated by gasification of the raw materials in the furnace body 1 flows into the periphery of the air outlet pipe 11 from bottom to top, residues after biomass combustion can fall into the bottom of the furnace body 1 and finally are discharged from the slag discharging port 12, impurities such as fly ash generated in the biomass combustion process flow to the inner side of the air outlet pipe 11 along with the combustible gas, the combustible gas and the impurities can pass through the rectangular screen 5 at the inner side of the air outlet pipe 11, the impurities can be filtered by the rectangular screen 5, further pure combustible gas is discharged along the air outlet pipe 11, and the amount of the filtered impurities along with the rectangular screen 5 is increased, the impurity accumulates and adheres to the lower terminal surface at rectangle screen cloth 5, cause the jam of rectangle screen cloth 5 at last, can gather in furnace body 1 under the circumstances that the gas can't pass rectangle screen cloth 5 for furnace body 1 inside atmospheric pressure increases, even there is the risk of explosion, furnace body 1 inside gas can get into rodless chamber 73 along inlet port 14, make the gas pressure in the rodless chamber 73 increase, gas can promote piston 71 and move in drive shell 7, piston 71 extrudees and has pole chamber 72 along drive shell 7 gliding while under the gas promotion, the space in the pole chamber 72 diminishes after the piston 71 removes, the slide bar 74 synchronous motion that can drive the solid connection in the piston 71 motion process, the slide bar 74 moves and can drive the synchronous motion of scraping strip 6 of rectangle screen cloth 5 below, scraping strip 6 is in the area of slide bar 74The rectangular screen 5 moves from one end close to the driving shell 7 to one end far away from the rectangular shell, namely the scraping strip 6 scrapes to the other end at one end of the rectangular screen 5, impurities attached to the rectangular screen 5 fall off under the scraping action of the scraping strip 6, so that the rectangular screen 5 is dredged, gas passes through the rectangular screen 5 again, the gas pressure in the furnace body 1 is reduced as the gas passes through the rectangular screen 5 and flows away along the gas outlet pipe 11, the gas pressure in the furnace body 1 is reduced, the gas pressure in the rodless cavity 73 is reduced at the same time, when the gas pressure in the rodless cavity 73 is smaller than the elastic force of the spring 75, the spring 75 pushes the piston 71 to be far away from the rectangular screen 5, the inner space of the rod cavity 72 is enlarged, the gas in the rodless cavity 73 is extruded and can be discharged into the furnace body 1 along the air inlet hole 14 again, the sliding rod 74 and the scraping strip 6 are driven to synchronously move in the process that the piston 71 is far away from the rectangular screen 5 and slides along the inner wall of the driving shell 7, the scraping strip 6 scrapes the lower end face of the rectangular screen 5 again in the moving process, the lower end face of the rectangular screen 5 is cleaned again, the piston 71 stops after being far away from the limit position of the rectangular screen 5 until the next rectangular screen 5 is blocked by impurities, the piston is started again until the next rectangular screen 5 is blocked by impurities, part of the space of the rodless cavity 73 is used for decompressing the inside of the furnace body 1, explosion of the furnace body 1 is avoided, and on the other hand, the scraping strip 6 is pushed to scrape the rectangular screen 5, dredging of the rectangular screen 5 is realized, and the filtering effect of the rectangular screen 5 on gas is ensured; the slag discharging port 12 is closed when the equipment operates, and is opened when slag is discharged;
according to the invention, the piston 71 is driven to move in the driving shell 7 by the gas pressure in the furnace body 1 and the spring 75, so that the piston 71 drives the scraping strip 6 to scrape the rectangular screen 5 through the sliding rod 74, thereby dredging the rectangular screen 5, further ensuring the filtering and purifying of the rectangular screen 5 on the combustible biomass gas, and improving the purity of the produced combustible biomass gas.
In this embodiment, the scraping strip 6 is composed of a scraping seat 61 and a scraping blade 62; the cross section of the scraping seat 61 is inverted Y-shaped; the outer edge of the scraping seat 61 is recessed inwards to form a trash discharging channel 63; the scraping blade 62 is fixedly connected to the impurity discharging channel 63 at a position close to the rectangular screen 5; the scraping blade 62 is in contact with the lower end face of the rectangular screen 5; a baffle plate 64 is fixedly connected to the inner part of the furnace body 1 at a position close to the two opposite inner walls; a first channel 65 is formed between the partition plate 64 and the corresponding inner wall of the furnace body 1; two lower ports of the impurity discharging channel 63 extend to the corresponding channel number one 65; the lower port of the first channel 65 is communicated with the slag discharging port 12; the slide bar 74 is fixedly connected with the scraping seat 61;
during operation, the scraping strip 6 is driven to scrape at the lower end face of the rectangular screen 5 by the sliding rod 74, the scraping strip 6 comprises the scraping seat 61 and the scraping blade 62, so the sliding rod 74 can drive the scraping seat 61 to move in the moving process of the sliding rod 74, the scraping seat 61 can drive the fixedly connected scraping blade 62 to synchronously move, the scraping blade 62 can drop impurities scraped off from the rectangular screen 5 into the impurity discharging channel 63, vibration force can be generated when the scraping blade 62 and the rectangular screen 5 are scraped, the scraping blade 62 is transmitted to the impurity discharging channel 63 under the action of the vibration force, the impurities can flow into the corresponding first channel 65 along the two lower ports of the impurity discharging channel 63 under the action of the vibration force, finally, the impurities can be moved to the bottom of the furnace body 1 by the first channel 65 and are discharged along the slag discharging port 12, the outer edge of the scraping seat 61 is contacted with the furnace body 1, the influence of gas inside the furnace body 1 is reduced, the impurities are prevented from directly falling on biomass in the furnace body 1 through the scraping down the impurities, the reaction effect of the biomass is prevented from being influenced, the impurities are prevented from being secondarily driven to the rectangular screen 5, and the dredging effect of the rectangular screen 5 is improved.
In this embodiment, a dredging rope 66 is disposed in the impurity removing channel 63; the dredging rope 66 is put on the impurity discharging channel 63; the end parts of the dredging ropes 66 penetrate through the two lower ports of the impurity discharging channels 63 and extend into the corresponding first channels 65; the pull cord 66 is made of a high temperature resistant material, such as tungsten or steel;
during operation, in the process that the scraping seat 61 moves along with the lower end face of the rectangular screen 5 under the driving of the sliding rod 74, the scraping seat 61 can drive the dredging rope 66 which is arranged in the impurity discharging channel 63 to synchronously move, the end part of the dredging rope 66 swings back and forth in the impurity discharging channel 63 under the driving of the scraping seat 61, the dredging rope 66 can move back and forth in the moving direction of the impurity discharging channel 63 in the swinging process, impurities in the impurity discharging channel 63 can be extruded in the moving process, so that the impurities can shake, in the scraping process that the scraping seat 61 drives the scraping blade 62 to scrape the lower end face of the rectangular screen 5, the middle part of the dredging rope 66 can be extruded in the swinging process of the scraping blade 62, the middle part of the dredging rope 66 can be bent after being extruded, the end part of the dredging rope 66 moves towards the impurity discharging channel 63 after being extruded in the middle part, the dredging rope 66 is restored after being far away from the middle part of the dredging rope 66, the dredging rope 66 generates the shaking process of the moving cooperation with the impurity discharging channel 63, and the impurities can be smoothly pressed into the channel 65.
In this embodiment, the first channels 65 are provided with corrugated grooves 67 inside; the corrugated grooves 67 are arranged on two opposite groove walls of the furnace body 1; the wave crests and wave troughs in the corresponding positions in the two corrugated grooves 67 are oppositely arranged; the end part of the dredging rope 66 is slidably connected with the corresponding corrugated groove 67 through a sliding block 68;
when the scraper seat 61 is in operation, the scraper seat 61 moves in the direction approaching to and separating from the driving shell 7 under the drive of the sliding rod 74, and the dredging rope 66 is arranged on the inner side of the scraper seat 61, so that the dredging rope 66 moves along with the movement of the scraper seat 61, and the end part of the dredging rope 66 is fixedly connected with the sliding block 68; the slide blocks 68 move along with the movement of the dredging ropes 66, so that the slide blocks 68 slide along the corresponding corrugated grooves 67 in the movement process, the slide blocks 68 can circularly move up and down in the sliding process due to corrugated wiping, and when one slide block 68 is positioned in the corresponding corrugated groove 67 at the trough due to the opposite arrangement of the wave crest and the wave trough at the corresponding position of the two corrugated grooves 67, the other slide block 68 is positioned in the wave crest in the corresponding corrugated groove 67, and thus the two slide blocks 68 can drive the dredging ropes 66 to move in the impurity discharging channels 63 in the sliding process of the corresponding corrugated grooves 67, and impurities in the impurity discharging channels 63 are accelerated to fall off in the back and forth movement process of the dredging ropes 66, so that the dredging of the impurity discharging channels 63 is further realized.
Example 2, this example differs from example 1 in that:
a first hole 76 is formed in the outer wall of one end of the sliding rod 74, which is close to the piston 71; the other end of the first hole 76 passes through the sliding rod 74 and extends to the inner side of the scraping seat 61; the scraping blade 62 is bent and deformed during the process of scraping the rectangular screen 5; the interior of the rod cavity 72 is communicated with the interior of the air outlet pipe 11 through a second hole 77; the second hole 77 is positioned above the rectangular screen 5; check valves are arranged in the first hole 76 and the second hole 77; the slide bar 74 is in sliding sealing connection with the drive shell 7;
when the piston 71 is close to the rectangular screen 5, the volume of the rod cavity 72 is reduced, the gas pressure in the rod cavity 72 is increased under the condition that the internal space is reduced, the gas in the rod cavity 72 enters the other end of the first hole 76 along one end of the first hole 76, the scraping blade 62 is bent and deformed during scraping the lower end face of the rectangular screen 5, the direction of bending the scraping blade 62 is the opposite direction of the movement of the scraping blade 62, and the scraping blade 62 is far away from the driving shell 7, so that the scraping blade 62 bends towards the direction of the driving shell 7, the gas exhausted from the other end of the first hole 76 is exhausted along two lower ports of the impurity exhausting channel 63 under the blocking of the bent scraping blade 62, the gas can take away impurities in the impurity exhausting channel 63, and the flow of the impurities in the impurity exhausting channel 63 is quickened; in the process that the piston 71 is far away from the rectangular screen 5, gas above the rectangular screen 5 enters the rod cavity 72 along the second hole 77, and supplements the gas in the rod cavity 72, so that a gas source foundation is provided for the next movement of the rod cavity 72, and the gas passing through the rectangular screen 5 can be accelerated in the process of sucking the second hole 77, so that the gas filtering efficiency is improved; the wiper 62 is pressed against the foreign matters attached to the wiper 62 during the bending process of the wiper seat 61, so that the foreign matters drop into the impurity discharging channel 63 under the pressing.
Example 3, this example differs from example 1 in that:
the shape of the air inlet hole 14 is an inverted L shape; a dredging piece 8 is penetrated in the air inlet hole 14; one end of the dredging piece 8 extends into the rodless cavity 73 and is fixedly connected with the piston 71, and the other end extends into the furnace body 1; a gap is reserved between the dredging piece 8 and the air inlet hole 14.
In this embodiment, the dredging piece 8 is a coil spring; the other end of the coil spring is positioned in the furnace body 1 and is coiled.
In this embodiment, the coil spring has a front end face and a back end face; protrusions 81 are arranged at non-corresponding positions on the front end face and the back end face; the protrusions 81 on the front end face and the back end face are not in one-to-one correspondence;
in order to avoid the situation that the air inlet 14 is blocked easily because the air in the furnace body 1 is not filtered and the air inlet 14 is driven to move synchronously by part of impurities, the dredging piece 8 is arranged in the air inlet 14, the dredging piece 8 is made of a high-temperature resistant material, the temperature of the position of the furnace body 1 close to the air inlet 14 is 100-250 ℃, the dredging piece 8 in the embodiment is made of a material higher than 250 ℃, so that the dredging piece 8 cannot be melted, the piston 71 can drive the fixedly connected dredging piece 8 to move synchronously in the process that the piston 71 is close to or far from the rectangular screen 5 along the inner wall of the driving shell 7, and the air inlet 14 is penetrated in the air inlet 14 under the guiding action of the L-shaped hole, so that the dredging piece 8 can realize the dredging purpose while ensuring the air flow and the impurities are prevented from remaining in a gap between the dredging piece 8 and the air inlet 14; more importantly, the dredging piece 8 in the embodiment is a coil spring, the coil spring is wound at the other end, the front end face of the coil spring is one face of the coil spring which is bent inwards, the opposite end face of the coil spring is one face of the coil spring which is bent inwards and opposite to the coil spring, impurities on the hole wall of the air inlet hole 14 can be carried out in the process that the other end of the coil spring is moved out of the air inlet hole 14, the other end of the coil spring is wound under the action of the coil spring in the process that the other end of the coil spring is moved out of the air inlet hole 14, and the impurities on the front end face and the opposite end face of the coil spring are extruded from the edges of the coil spring after being mutually extruded after being wound, so that self-cleaning of the impurities on the coil spring is realized; more importantly, the other end of the coiled spring is positioned at the orifice of the air inlet hole 14, and before the air enters the air inlet hole 14, the air can be filtered through the coiling shape of the coiled spring, so that the impurity is reduced to be brought into the air inlet hole 14; protrusions 81 are arranged at non-corresponding positions on the front end face and the back end face of the coil spring, so that the coil spring can shake back and forth in the air inlet 14 through back and forth extrusion of the protrusions 81 and the wall of the air inlet 14 in the process of being inserted into the air inlet 14, the shake coil spring can improve the dredging effect of the air inlet 14, meanwhile, falling of impurities on the coil spring is accelerated, and the self-cleaning effect of the coil spring is improved.
In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in fig. 1, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or element in question must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the scope of the present invention, and furthermore, the terms "first", "second", "third", etc. are merely used for distinguishing the description, and should not be construed as indicating or implying relative importance.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
1. An apparatus for gasification combustion of biomass comprising:
the furnace body (1) is provided with an air outlet pipe (11) arranged at the upper part of the furnace body (1) and a slag discharging port (12) arranged at the lower part of the furnace body;
the outer wall of the furnace body (1) is fixedly connected with an air inlet assembly (2) and a feeding assembly (3) which are communicated with the inside of the furnace body;
the furnace body (1) is internally fixedly connected with a fire grate (4); the lower end of the furnace body (1) is supported by a bracket (13);
the biomass gasification combustion equipment is characterized by further comprising:
a rectangular screen (5); the rectangular screen (5) is fixedly connected to the inner side of an air outlet pipe (11) with a rectangular section;
a scraper bar (6); the scraping strip (6) is positioned below the rectangular screen (5) and is in contact with the lower end surface of the rectangular screen (5);
a drive housing (7); the driving shell (7) is fixedly connected to the outer side of the upper end of the furnace body (1); the driving shell (7) is a square body;
a piston (71); the piston (71) is connected to the inner side of the driving shell (7) in a sliding and sealing manner; the piston (71) divides the interior of the drive housing (7) into a rod cavity (72) and a rodless cavity (73);
a slide bar (74); one end of the sliding rod (74) is fixedly connected to one side of the piston (71) close to the rectangular screen (5), and the other end of the sliding rod extends into the air outlet pipe (11); the other end of the sliding rod (74) is in sliding sealing connection with the air outlet pipe (11); the other end of the sliding rod (74) is fixedly connected with the scraping strip (6);
a spring (75); the spring (75) is positioned in the rod cavity (72); and is sleeved on the sliding rod (74); the rodless cavity (73) is communicated with the inside of the furnace body (1) through an air inlet hole (14).
2. An apparatus for gasification combustion of biomass as set forth in claim 1 wherein: the scraping strip (6) consists of a scraping seat (61) and a scraping blade (62); the cross section of the scraping seat (61) is inverted Y-shaped; the outer edge of the scraping seat (61) is inwards recessed to form a trash discharging channel (63); the scraping blade (62) is fixedly connected to the impurity discharging channel (63) at a position close to the rectangular screen (5); the scraping blade (62) is in contact with the lower end face of the rectangular screen (5); a baffle plate (64) is fixedly connected to the position, close to the two opposite inner walls, inside the furnace body (1); a first channel (65) is formed between the partition plate (64) and the corresponding inner wall of the furnace body (1); two lower ports of the impurity discharging channel (63) extend to the corresponding first channel (65); the lower port of the first channel (65) is communicated with the slag discharging port (12).
3. An apparatus for gasification combustion of biomass as set forth in claim 2 wherein: a dredging rope (66) is arranged in the impurity discharging channel (63); the dredging rope (66) is lapped on the impurity discharging channel (63); the end parts of the dredging ropes (66) penetrate through two lower ports of the impurity discharging channels (63) and extend into the corresponding first channels (65); the dredging rope (66) is made of high-temperature resistant materials.
4. A biomass gasification combustion apparatus according to claim 3, wherein: the interiors of the first channels (65) are provided with corrugated grooves (67); the corrugated grooves (67) are arranged on two opposite groove walls of the furnace body (1); the wave crests and wave troughs in the corresponding positions in the two corrugated grooves (67) are oppositely arranged; the end part of the dredging rope (66) is connected with the corresponding corrugated groove (67) in a sliding way through a sliding block (68).
5. An apparatus for gasification combustion of biomass as set forth in claim 2 wherein: a first hole (76) is formed in the outer wall of one end, close to the piston (71), of the sliding rod (74); the other end of the first hole (76) passes through the sliding rod (74) to extend to the inner side of the scraping seat (61); the scraping blade (62) can bend and deform in the process of scraping the rectangular screen (5); the inside of the rod cavity (72) is communicated with the inside of the air outlet pipe (11) through a second hole (77); the second hole (77) is positioned above the rectangular screen (5); check valves are arranged in the first hole (76) and the second hole (77).
6. An apparatus for gasification combustion of biomass as set forth in claim 2 wherein: the shape of the air inlet hole (14) is an inverted L shape; a dredging piece (8) is penetrated in the air inlet hole (14); one end of the dredging piece (8) extends into the rodless cavity (73) and is fixedly connected with the piston (71), and the other end extends into the furnace body (1); a gap is reserved between the dredging piece (8) and the air inlet hole (14).
7. The apparatus for gasification combustion of biomass as set forth in claim 6 wherein: the dredging piece (8) is a coil spring; the other end of the coil spring is positioned in the furnace body (1) and is arranged in a winding shape.
8. The apparatus for gasification combustion of biomass as set forth in claim 7 wherein: the coil spring is provided with a front end face and a back end face; protrusions (81) are arranged at non-corresponding positions on the front end face and the back end face; the protrusions (81) on the front end face and the back end face are not in one-to-one correspondence.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20210014399A (en) * | 2019-07-30 | 2021-02-09 | 아주대학교산학협력단 | Analyzing device of ash, resulting from biomass firing, causing fine dust |
| CN214115819U (en) * | 2020-12-28 | 2021-09-03 | 河南七彩虹农业科技股份有限公司 | Clear fine hair device of drawing frame |
| CN215828698U (en) * | 2021-06-17 | 2022-02-15 | 南京惠若化工科技有限公司 | Catalytic gasification raw gas treatment system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20210014399A (en) * | 2019-07-30 | 2021-02-09 | 아주대학교산학협력단 | Analyzing device of ash, resulting from biomass firing, causing fine dust |
| CN214115819U (en) * | 2020-12-28 | 2021-09-03 | 河南七彩虹农业科技股份有限公司 | Clear fine hair device of drawing frame |
| CN215828698U (en) * | 2021-06-17 | 2022-02-15 | 南京惠若化工科技有限公司 | Catalytic gasification raw gas treatment system |
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