WO2015149637A1 - Dispositif de combustion pour combustibles solides - Google Patents

Dispositif de combustion pour combustibles solides Download PDF

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Publication number
WO2015149637A1
WO2015149637A1 PCT/CN2015/074933 CN2015074933W WO2015149637A1 WO 2015149637 A1 WO2015149637 A1 WO 2015149637A1 CN 2015074933 W CN2015074933 W CN 2015074933W WO 2015149637 A1 WO2015149637 A1 WO 2015149637A1
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Prior art keywords
furnace
combustion
solid fuel
fuel
combustion apparatus
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PCT/CN2015/074933
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English (en)
Chinese (zh)
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车战斌
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车战斌
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Publication of WO2015149637A1 publication Critical patent/WO2015149637A1/fr

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23B—METHODS OR APPARATUS FOR COMBUSTION USING ONLY SOLID FUEL
    • F23B50/00—Combustion apparatus in which the fuel is fed into or through the combustion zone by gravity, e.g. from a fuel storage situated above the combustion zone
    • F23B50/02—Combustion apparatus in which the fuel is fed into or through the combustion zone by gravity, e.g. from a fuel storage situated above the combustion zone the fuel forming a column, stack or thick layer with the combustion zone at its bottom
    • F23B50/04—Combustion apparatus in which the fuel is fed into or through the combustion zone by gravity, e.g. from a fuel storage situated above the combustion zone the fuel forming a column, stack or thick layer with the combustion zone at its bottom the movement of combustion air and flue gases being substantially transverse to the movement of the fuel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J1/00—Removing ash, clinker, or slag from combustion chambers

Definitions

  • This invention relates to the field of solid fuel combustion, and more particularly to a solid fuel combustion apparatus.
  • the inventors have found through careful study that the main difference between biomass burning materials and low-grade coal (such as lignite, peat, etc.) and high-grade coal is that high-grade coal has a high fixed carbon content (generally over 90%). Therefore, it is mainly fixed carbon combustion mode when burning; while biomass combustion materials and low-grade coal have relatively low fixed carbon content and relatively high volatile content (about 50%-70%).
  • the solid fuel with high volatile content mainly has two characteristics: 1) the volatile matter precipitation temperature is lower than the volatile ignition point; 2) the volatile matter has a higher ignition point than the ash melting point.
  • the current combustion furnaces are generally classified into two types: a forward combustion furnace and a reverse combustion furnace. Due to the above characteristics of biomass fuel and low-grade coal, continuous combustion can not be achieved by using these two combustion furnaces.
  • the existing combustion device generally enters the wind through the furnace, so that the solid fuel on the furnace is subjected to high-temperature combustion. Since the ash melting point is lower than the ignition point of the volatile matter and the fixed carbon, the combustion is performed in a high-temperature environment in which the carbon is burned on the furnace. After the ash is in a viscous molten state, it will paste on the furnace and cannot be normally discharged through the furnace or other ash-discharging mechanism (such as the ash stick), so that the viscous ash is mixed and burning. The fuel greatly affects the combustion efficiency of the fuel. Moreover, the viscous ash adheres to the furnace raft, blocking the air inlet passage on the furnace, a section After the time, the furnace will be killed, so that the furnace cannot continue to work.
  • the characteristic of the trans-burning furnace is that the fire outlet is lower than the furnace, so that the flame generated by the combustion passes through the furnace and then reaches the fire exit.
  • This combustion mode can be ignited by the flame when passing through the furnace as compared with the forward combustion, and the combustion efficiency is improved.
  • the high temperature flame is located in the furnace position, this also makes the temperature of the furnace position very high. In the high temperature environment, the burnt ash is in a viscous molten state, which will paste on the furnace and block the furnace. The air flow passage will soon ruin the furnace, making the furnace unable to continue working.
  • the Chinese utility model patent No. 01220213695.8 proposes a hot blast stove 900 which can be used for full combustion of various solid combustibles and multi-point air distribution.
  • the hot blast stove includes a furnace body, and an upper combustion chamber 92 and a lower combustion chamber 93 are respectively disposed in the furnace body, and an upper furnace 94 and a lower furnace are respectively disposed at the bottoms of the upper combustion chamber 92 and the lower combustion chamber 93, respectively.
  • 95 below the lower furnace 95 is a ash removal chamber 96, and a burner outlet 98 is provided on the furnace body of the lower combustion chamber 93.
  • the upper combustion chamber 92 is provided with a funnel-shaped combustion chamber 910 whose upper portion is integrated with the inner wall of the furnace, and whose lower portion is reduced in diameter.
  • the lower port of the funnel-shaped fuel tank 910 is located on the upper furnace 94, and the center of the funnel-shaped fuel tank 910
  • a cylindrical pyrotechnic passage 911 having a lower end opening is formed in the longitudinal direction, and an annular upper air passage 912 is formed between the outer wall of the lower portion of the funnel-shaped fuel storage tank 910 and the inner wall of the furnace body 91, and the outer wall of the lower cylinder of the funnel-shaped fuel storage tank 910 is evenly opened.
  • the outer wall of the furnace body 91 is provided with two air inlets 914 communicating with the annular air duct, and the air inlet 914 is connected with the air duct 915.
  • the hot blast stove attempts to solve the problems of forward combustion and trans combustion by combining positive and negative combustion.
  • the hot blast stove 900 when used, it has the following defects and cannot be continuously used:
  • the hot air furnace has a large amount of air from the lower furnace 95 at the bottom of the lower combustion chamber 93, causing the temperature of the lower furnace 95 to be too high, and some solid biomass fuels (
  • the ash melting point of the straw is relatively low, so that the hot blast stove generates a ashing phenomenon when burning the solid biomass fuel, so that the ash produced by the combustion is in a viscous molten state and is bonded to the furnace 95.
  • the gap of the lower furnace 95 is melted and the ash is not effectively discharged, thereby causing the hot blast stove to be unable to continue working.
  • An object of the present invention is to provide a solid fuel combustion method and a combustion apparatus which can not only sufficiently burn volatile matter in a solid fuel, but also solve the problem of welding, thereby ensuring continuous combustion of the fuel.
  • the present invention provides a solid fuel combustion apparatus comprising a furnace having an air inlet and a solid fuel feed port on the furnace, wherein the feed port is provided at the top of the furnace
  • a furnace is arranged in the furnace corresponding to the feed port to receive solid fuel entering from the feed port, and the solid fuel forms a stack layer between the feed port and the furnace, and the stack layer is above the furnace on one side of the stack
  • the furnace is formed as an inlet side, and the other side of the stack opposite to the inlet side is formed as a combustion side; and a combustion chamber that is connected to the outlet of the exhaust gas is formed on the combustion side to enter the furnace of the furnace
  • the generated main airflow passes through the stacking layer and passes through the stacking layer to enter the combustion chamber, and finally exits from the exhaust gas outlet.
  • a material discharging mechanism is arranged in the stacking area of the solid fuel above the furnace to control the material discharging mechanism. The movement will loosen the fuel in a burning state.
  • the working principle of the combustion apparatus of the solid fuel of the present invention is described as follows.
  • the volatile matter is precipitated in the fuel and the fixed carbon combustion is carried out in the stacking layer.
  • the volume of the volatile matter after the fuel is released becomes smaller. Under the action of gravity, it automatically moves downwards and is gradually ignited by the lower combustion flame.
  • the new fuel is automatically replenished from the feed port to the pile layer.
  • the fixed carbon combustion of the lower layer fuel provides the heat required for the volatilization of the upper layer of new fuel.
  • the replenishing speed of the new fuel depends on the burning speed of the lower layer fuel, thereby naturally achieving the matching of the volatilization of the upper layer and the burning speed of the fixed carbon fuel, and effectively solving the safety hazard problem of the existing hot blast stove due to the mismatch of the burning speed.
  • the fuel newly added to the pile layer is heated by the lower layer of fixed carbon fuel, and the volatile matter is discharged toward the combustion chamber, and the lower layer of fixed carbon fuel is burned to generate flame.
  • the flame is also driven toward the combustion chamber by the air flow.
  • the volatile matter passes through the combustion flame, it is ignited by the high temperature generated by the combustion flame, thereby achieving full combustion of the volatile matter.
  • the combustion apparatus of the present invention can automatically and orderly feed by gravity with the progress of combustion, the combustion furnace can be placed in an unattended operation state, which not only saves labor, but also causes the pile layer to be in a dynamic equilibrium state.
  • the fixed carbon combustion and volatile matter precipitation have been in a continuous and stable combustion state, which effectively ensures the full combustion of the volatiles, improves the combustion efficiency, and realizes the orderly controllable combustion of the combustion furnace.
  • the present invention introduces air from one side of the stack layer, a combustion chamber is provided on the combustion side opposite to the inlet side of the stack layer.
  • a combustion chamber is provided on the combustion side opposite to the inlet side of the stack layer.
  • the combustion station As the combustion progresses, the fixed carbon fuel whose volume becomes smaller gradually moves downward, and the longer the burning time, the lower the fixed carbon fuel is located, so that the lower the fixed carbon combustion layer is lower, the lower the temperature, the combustion station The resulting ash is also passed under the action of gravity during the downward movement of the fixed carbon fuel.
  • the bottom furnace is discharged into the lower ash chamber, which effectively solves the problem of the ash existing in the existing combustion furnace and ensures the continuous and stable combustion of the furnace.
  • the position above the furnace is located substantially at the lower portion of the pile layer, which is basically a combustion layer of fixed carbon in which the volatile matter has been precipitated in the fuel.
  • the fuel in this layer is in a burning state, and if the ash generated on the fuel surface is not discharged in time, there is sometimes a crusting phenomenon; in addition, the lower fixed carbon combustion layer is under the gravity of the fuel above the fuel. The gap is greatly reduced, affecting the burning effect of fixed carbon.
  • a feeder is provided in a pile area for receiving solid fuel above the furnace. The dispenser is located substantially at the location of the combustion layer of the fixed carbon and is controlled to effect the movement of the material.
  • the fuel of the combustion layer of the fixed carbon can be loosened to increase the gap of the fuel, which is beneficial to the combustion of the combustion layer of the fixed carbon, and can also facilitate the burning of the ash generated after the fuel in the combustion layer is burned.
  • the gap is discharged.
  • the dispenser of the present invention controls the dispensing of the material according to the user's demand for the combustion state, especially when the combustion efficiency is required to be activated.
  • the dispensing mechanism consists of a rotary dispenser or a mobile dispenser.
  • the dispenser includes a skip roller having a feed fin arranged thereon.
  • the material-receiving fins arranged on the material-receiving roller are composed of a material bar or a material ring.
  • the material-receiving fins are arranged on the pick-up roller symmetrically along the axial direction of the dialing roller, or are arranged asymmetrically or spirally.
  • the dispenser is comprised of a picking rim or a spiral strip.
  • the skip rim or the spiral strip can be provided with a skip spoke to support the skip roller.
  • the feed roller is rotated by a rotating shaft to form a rotary dispenser.
  • the pick roller is moved by the moving rod to form a mobile dispenser.
  • the rotary dispenser or the mobile dispenser is controlled to rotate or move by a manual or a driving device.
  • the rotational axis of the rotary dispenser is disposed substantially perpendicular to the direction of flow of the primary airflow, and the rotation of the selector is controlled to toggle the fuel toward the combustion side.
  • the grate is spaced from the inner wall of the grate at one edge of the combustion chamber, the axis of rotation of the rotary dipper being substantially parallel to the grate edge spaced from the inner wall of the grate .
  • two or more material dispensing mechanisms are disposed above the hearth.
  • the two upper side faces of the furnace above the furnace between the inlet side and the combustion side, and the two sides of the pile layer between the inlet side and the combustion side are
  • the formed natural stacking slope is uniform or located inside the natural stacking slope, so that the two sides of the stacking layer between the inlet side and the burning side are in contact with the inner wall of the furnace.
  • the axis of the pick roller of the picker having the spiral strip is disposed along the direction of flow of the primary air stream.
  • combustion furnace of the present invention the volatile matter can be almost completely burned, and the combustion efficiency of the combustion furnace The rate is over 95%, and there is no black smoke emission, which achieves clean emissions of solid fuel combustion with high volatile content.
  • the combustion furnace of the invention fully utilizes the characteristics of gravity and heat transfer, can not only meet the requirements of the fuel principle, realizes automatic and orderly combustion of fuel, has simple structure, low manufacturing cost, convenient use, and thus is a solid with high volatile matter.
  • the promotion and application of fuel provides favorable conditions.
  • the fuel in the burning state can be loosened to increase the gap of the fuel, thereby improving the combustion effect and facilitating the elimination of the ash.
  • Figure 1 is a schematic view showing the structure of a conventional positive and negative hot air furnace
  • Figure 2 is a schematic view showing the combustion state of the combustion apparatus of the present invention.
  • FIG. 3 is a schematic structural view of a combustion apparatus of the present invention using a rotary type shifter
  • FIG. 4 is a schematic structural view of a combustion apparatus of the present invention using a mobile type hopper
  • Figure 5 is a schematic structural view of an embodiment of the dispenser of the present invention.
  • FIG. 5A is a schematic structural view of another embodiment of the dispenser shown in FIG. 5;
  • FIG. 5B is a schematic structural view of still another embodiment of the dispenser shown in FIG. 5;
  • 5C is a schematic structural view of a third embodiment of the dispenser shown in FIG. 5;
  • Figure 6 is a schematic structural view of another embodiment of the dispenser of the present invention.
  • FIG. 6A is a schematic structural view of another embodiment of the dispenser shown in FIG. 6;
  • FIG. 6B is a schematic structural view of still another embodiment of the dispenser shown in FIG. 6;
  • Figure 7 is a schematic structural view of a third embodiment of the dispenser of the present invention.
  • Figure 8 is a schematic structural view of a fourth embodiment of the dispenser of the present invention.
  • Figure 9 is a schematic view showing the structure of a combustion apparatus provided with a screw type feeder
  • Figure 10 is a schematic view showing the structure of the burner of the present invention using a plurality of dispensers
  • Combustion device 100 heat exchange device 200; exhaust gas discharge port 201;
  • Furnace 10 inlet side 101; combustion side 102; side wall faces 103, 104;
  • Stack layer 1 two opposite sides 161, 162; natural stacking slope 16; feed port 11; air inlet 12; furnace 14; feed hopper 15; combustion chamber 3;
  • Solid fuel 5 volatile matter 51; fixed carbon fuel 52 after volatilization; ash 53.
  • a solid fuel combustion apparatus 100 of the present invention includes a furnace 10 in which an air inlet 12 and a solid fuel feed port 11 are provided.
  • the feed port 11 is provided at the top of the furnace 10, and a furnace 14 for receiving the solid fuel 5 entering from the feed port 11 is provided in the furnace 10 corresponding to the feed port 11, and the solid fuel 5 is at the feed port 11
  • a pile layer 1 is formed between the furnace layer 14 and a furnace above the furnace 14 on one side of the pile layer 1 is formed as an inlet side 101, and the other side of the pile layer 1 opposite to the inlet side 101
  • the furnace is formed as a combustion side 102; a combustion chamber 3 that is electrically connected to the exhaust gas outlet 201 is formed on the combustion side 102, so that the main airflow generated by the wind entering the furnace (as indicated by an arrow in FIG.
  • a material discharging mechanism 6 is disposed in the stacking area of the solid fuel 5 above the furnace 14, and the movement of the discharging mechanism 6 is controlled to move the fuel in a burning state stacked in the stacking area.
  • the working principle of the invention is that a feed port 11 is arranged at the top of the furnace 10, and a corresponding furnace inlet 11 in the furnace 10 is provided with a furnace 14 for receiving solid fuel entering from the feed port 11, entering from the feed port 11.
  • the fuel forms a pile layer 1 on the furnace 14, the furnace 10 above the furnace 14 is formed on the side of the pile layer 1 as the inlet side 101, and the other side opposite the inlet side 101 is formed to be combusted Side 102, the stack layer 1 isolates the inlet side 101 from the combustion side 102, and the pile layer 1 constitutes a partition between the inlet side 101 and the combustion side 102 above the furnace 14; the combustion side 102 is connected At the combustion chamber 3 of the exhaust gas outlet 201.
  • the pile layer 1 is ignited, and air is introduced from the inlet side 101 of the pile layer 1, the wind passes transversely through the pile layer 1, and exits from the combustion side 102 of the pile layer 1, the wind is directed toward the combustion flame
  • the combustion chamber 3 is burned, the fuel gradually moves down as the volume becomes smaller, and the new fuel is automatically replenished to the stack layer 1 under the action of gravity, and the volatiles 51 are heated to precipitate, and the volatiles 51 are deposited from the stack layer.
  • the combustion side 102 of 1 flows out and flows toward the combustion chamber 3, and the volatile matter 51 is ignited by the combustion flame that is burned toward the combustion chamber 3, enters the combustion chamber 3 for combustion, and the combustion exhaust gas is discharged from the exhaust gas outlet 201; meanwhile, after the volatile matter 51 is precipitated
  • the fixed carbon fuel 52 is ignited, carbon combustion is performed, and a new combustion flame is generated.
  • the ash 53 generated after the burnout is discharged through the furnace 14 at the bottom of the pile layer 1, and as the combustion progresses, the new fuel is continuously replenished. On the 1st, a combustion cycle is formed.
  • the stack layer 1 formed between the feed port 11 and the furnace 14 can have the inlet side 101 and the combustion side.
  • the 102 is isolated to form a partition separating the inlet side 101 and the combustion side 102.
  • a combustion chamber 3 is formed on the combustion side 102 to be electrically connected to the exhaust gas outlet 201, so that the main airflow generated by the wind entering the furnace 10 passes through the stacking layer 1 substantially transversely from the inlet side 101 into the combustion chamber 3, and finally from the exhaust gas.
  • the outlet 201 is discharged.
  • the main air flow generated by the wind entering the furnace 10 of the present invention refers to the majority of the air flow generated by the wind, which flows from the air inlet side 101 of the pile area 1 substantially transversely through the pile layer 1 from the combustion side 102; during the combustion process
  • the wind entering the furnace 10 mainly produces a gas flow transversely passing through the pile layer 1, and the bottom of the furnace layer 14 at the bottom of the stack layer 1 has almost no air flow or a weak air flow passes through the bottom furnace 14 as long as the weak
  • the airflow does not affect the main airflow direction, and does not affect the effect of the combustion apparatus of the present invention, that is, the combustion apparatus of the present invention can ensure that the main airflow direction in the combustion process enters from the inlet side 101 of the pile layer 1 and passes through the combustion side 102. It is within the scope of the invention to form a lateral combustion pattern substantially transversely through the stock layer 1.
  • the stock layer 1 in the present invention refers to a pile formed of a solid fuel between the feed port 11 and the furnace 14.
  • the newly introduced fuel in the upper layer is first heated to a temperature at which the volatile matter is precipitated to precipitate volatiles, and then ignited for fixed carbon combustion, and gradually decreases as the volume of the fuel becomes smaller as the combustion progresses.
  • the ash 53 generated after the burnout is discharged through the furnace 14; at the same time, the new fuel is automatically replenished to the pile layer 1 under the action of gravity, so that the pile layer 1 between the feed port 11 and the furnace 14 is burning.
  • the process is in a state of dynamic equilibrium, maintaining a stable stock shape.
  • the fuel is released from the volatile matter 51 and the fixed carbon combustion is in the furnace above the furnace 14, during the combustion, the fuel is released after the volatile matter 51 is released.
  • the volume becomes smaller, automatically moves downward under the action of gravity, and is gradually ignited by the lower combustion flame.
  • the new fuel is automatically replenished from the feed port 11 to the pile layer 1 under the action of gravity, and the fixed carbon combustion of the lower layer of fuel is
  • the evaporation of the upper fuel volatiles provides the required heat, and the replenishing speed of the new fuel depends on the burning speed of the lower fuel, thereby naturally achieving the natural matching of the upper volatiles precipitation and the burning speed of the fixed carbon fuel 52, effectively solving the existing hot air furnace.
  • the volatiles 51 which are heated and precipitated by the lower fixed carbon fuel 52 are flowed toward the combustion chamber 3, and the lower fixed carbon fuel 52 is burned to generate a flame which is also directed toward the air.
  • the combustion chamber 3 is burned, and when the volatile matter 51 passes through the combustion flame, it is ignited by the high temperature generated by the combustion flame, thereby achieving sufficient combustion of the volatile matter.
  • the combustion device can be placed in an unattended operating state, which not only saves manpower, but also because the stack layer 1 is in a state of dynamic equilibrium, the stack layer 1 Maintaining a stable stock shape during the combustion process, so that the fixed carbon combustion and volatile matter precipitation in the furnace 1 are always in a continuous stable combustion state, effectively ensuring full combustion of volatiles, improving combustion efficiency, and achieving combustion. Orderly controlled combustion of the device.
  • the present invention provides a combustion chamber 3 from the combustion side 102 of the side of the stack layer 1 and opposite the inlet side 101, the main gas stream is passed transversely through the stack layer 1 from the combustion side 102, A high temperature flame zone is formed on the combustion side 102 of the stock layer 1 to provide a high temperature environment for ignition of the volatiles to form a lateral combustion mode.
  • a material discharge mechanism 6 is provided in a pile area for receiving solid fuel above the furnace 14.
  • the dispensing mechanism 6 is substantially at the location of the combustion layer that fixes the carbon and is controlled to effect the movement of the material.
  • the fuel of the combustion layer of the fixed carbon can be loosened to increase the gap of the fuel in the combustion state, which is beneficial to improving the combustion of the combustion layer of the fixed carbon, and at the same time, is beneficial for burning the fuel in the combustion layer after burning off.
  • the ash is discharged from the gap after loosening.
  • the combustion direction of the present invention is from the inlet side to the combustion side
  • the combustion layer of the fixed carbon in the present invention has a higher temperature near the combustion side 102, and the combustion rate of the portion of the fuel is high and the temperature is high, and the high temperature combustion state is high. If the ash is not smooth, it is easy to scar. Therefore, in an alternative embodiment of the present invention, the furnace 14 is spaced from the inner wall of the furnace at one side edge of the combustion chamber, and the crucible of the fuel 5 during the combustion process can be conveniently disposed by the material discharging mechanism 6. The furnace 14 is disengaged at the interval of one side of the combustion chamber to ensure normal combustion of the combustion layer of the furnace 14 above the combustion chamber, which is dominated by fixed carbon combustion.
  • the dispensing mechanism 6 is constituted by a rotary type discharging mechanism 601.
  • the dispensing mechanism 6 is constituted by a mobile dispensing mechanism 602.
  • the dispensing mechanism 6 includes a skip roller 61 on which the skipping fins 62 are arranged.
  • the material-receiving fins 61 are arranged on the pick-up roller 61 by rod-shaped feed fins 621 (as shown in FIG. 5, FIG. 5A to FIG. 5C) or annular-shaped feed fins 622 (FIG. 6, FIG. 6A). Figure 6B).
  • the annular feed fin 622 is a U-shaped ring or a semi-circular ring, or other shape-fetching fins 622 of the same principle and function.
  • the material feeding fin 62 of the present invention is used to disturb the fuel in the burning state during the movement, and is loosened to increase the gap between the fuels. Therefore, the material feeding fin 62 can be any shape that realizes the above function, and It is limited to the specific shape shown in the figures of the present invention.
  • the materializing rollers 61 are arranged with the material feeding fins 62 arranged symmetrically along the axial direction of the marking roller 61, as shown in Figs. 5A, 5B, 6A, and 6B. Shown.
  • the material feeding fins 62 are arranged asymmetrically along the axial direction of the materializing roller 61 as shown in FIG. 5 and FIG. 6;
  • the feed fins 62 are spirally arranged along the axial direction of the skip roller 61 as shown in Fig. 5C.
  • the skipper 62 is comprised of a skip rim 66.
  • the skip rim 66 is provided with a skip spoke supported on the skip roller 61.
  • the materializing fin 62 is formed by a spiral strip 63.
  • the spiral strip 63 is provided with a skip spoke supported on the skip roller 61.
  • the spiral strip 63 in this embodiment has a directionality of the material, and has the function of directionalally pushing the fuel or pushing the knot while the material is being plucked.
  • the skip roller 61 is rotated by the rotary shaft 611 to form a rotary feed mechanism 601, as shown in Figs.
  • the rotating shaft 611 can be controlled to rotate by a manual or a driving device.
  • a driving device 64 is provided at one end of the rotating shaft 611 of the skip roller 61, and the driving device 64 drives the skip roller 61 to rotate.
  • This embodiment is suitable for use in a heating apparatus for heating, and continuous movement of the material during combustion can be achieved by continuous rotation of the driving unit 64.
  • a handle 65 may be disposed at one end of the rotating shaft 611 of the skip roller 61.
  • the manual rotation of the handle 65 can also realize the rotational movement of the skip roller 61, thereby forming a rotary material. 601.
  • the embodiment is suitable for an oven for cooking or a general household stove. The user can manually rotate the handle 65 according to the requirements of the combustion state to improve the combustion state of the fuel in the furnace at any time.
  • the skip roller 61 is moved by the moving rod 612 to form a mobile dispensing mechanism 602.
  • the handle 65 can be coupled to the moving rod 612. Pulling the handle 65 in the axial direction of the moving rod 612 can drive the axial movement of the setting roller 61 to constitute the mobile dispensing mechanism 602.
  • the mobile dispenser 602 is manually controlled to move by the handle 65.
  • the mobile motion of the mobile dispenser can also be controlled by the drive.
  • the driving device for controlling the movement of the dispenser can adopt conventional technical solutions such as connecting rod, cam, pneumatic or hydraulic.
  • the rotational axis of the rotary dispenser 601 is disposed substantially perpendicular to the flow direction of the main airflow (as indicated by the arrow in FIG. 2), and the rotary shifter 601 is controlled. Rotation moves the fuel toward the combustion side 102.
  • the furnace 14 may be spaced from the inner wall of the furnace 10 at one side edge of the combustion chamber 3, and the material discharge mechanism 6 is disposed substantially parallel to the edge of the furnace 14 spaced from the inner wall of the furnace.
  • the furnace 14 is not provided on the side of the combustion chamber 3 and is spaced apart from the inner wall of the furnace 10.
  • two or more material feeding mechanisms 6 may be disposed above the furnace 14. This embodiment is suitable for a combustion apparatus 100 having a large furnace.
  • the two opposite sidewall faces 103, 104 between the inlet side 101 and the combustion side 102 of the furnace 10 above the furnace 14 and the stack layer 1 on the inlet side 101 are
  • the natural stacking slopes 16 that may be formed by the two sides 161, 162 between the combustion sides 102 are identical or located inside the natural stacking slope such that the stacking layer 1 is on both sides 161, 162 between the inlet side 101 and the combustion side 102.
  • the space of the wind side 101 is separated from the combustion side 102 by the stock layer 1.
  • the airflow generated by the wind entering the air inlet side 101 can only pass through the stack layer 1 to reach the combustion side 102, avoiding the wind from passing outside the stack layer 1 and doing useless work, ensuring the wind passing through the stack layer 1. Effective supply.
  • the axis of the skip roller 61 of the dispensing mechanism 6 is disposed along the flow direction of the main airflow.
  • the spiral strip 63 is used to activate the spiral strip 63 to loosen the fuel in the char combustion layer while also providing the fuel and junction in the combustion state on the inlet side 101.
  • the crucible is advanced to the combustion side 102.
  • the spiral strip 63 can push the knot through the edge of the furnace 14 to ensure a better combustion state within the stack.
  • the combustion chamber 3 is connected to the heat exchange device 200 to utilize the heat generated by the combustion chamber 3.
  • the heat exchange device 200 may be a heat exchanger for heating, a crucible, a cooker, a water jacket, or the like.
  • An example in which a heat exchanger is disposed in the combustion chamber 3 is shown in FIG.

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  • Combustion & Propulsion (AREA)
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  • Solid-Fuel Combustion (AREA)

Abstract

L'invention concerne un dispositif de combustion (100) pour combustibles solides. Un côté d'admission d'air (101) est formé au-dessus d'une grille de four (14) dans un four (10) et sur un côté d'une couche de stockage de combustible (1) du dispositif de combustion (100), un côté de combustion (102) est formé dans le four (10) sur l'autre côté opposé de la couche de stockage de combustible (1); un mécanisme de brassage (6) est agencé dans la couche de stockage de combustible (1) au-dessus de la grille de four (14) pour recevoir les combustibles solides, et les combustibles dans un état de combustion peuvent être brassés par commande du mouvement du mécanisme de brassage (6), qui est bénéfique pour évacuer les cendres.
PCT/CN2015/074933 2014-04-04 2015-03-24 Dispositif de combustion pour combustibles solides WO2015149637A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201410135541.5A CN104976613A (zh) 2014-04-04 2014-04-04 固体燃料的燃烧装置
CN201410135541.5 2014-04-04

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WO2015149637A1 true WO2015149637A1 (fr) 2015-10-08

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Cited By (1)

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CN107289464A (zh) * 2017-08-28 2017-10-24 山东众泰石油工程有限责任公司 双燃料自动燃烧采暖炉

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