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CN-224230331-U - Biomass boiler with combustion-supporting mechanism

CN224230331UCN 224230331 UCN224230331 UCN 224230331UCN-224230331-U

Abstract

The utility model discloses a biomass boiler with a combustion-supporting mechanism, which comprises a boiler body, wherein a hot water bin and a combustion bin are arranged in the boiler body, a material guide mechanism is arranged in the combustion bin, an inserting mechanism is arranged on the left side of the combustion bin, material guide rollers with gradually-reduced diameters from left to right are arranged in the combustion bin, a plurality of groups of material discharging grooves are circumferentially distributed on the material guide rollers, a driving motor is arranged on the outer side of the boiler body and is in transmission connection with a connecting frame in the material guide rollers through a driving shaft penetrating through the combustion bin, a first supporting frame and a second supporting frame are respectively arranged at the right end and the middle part of the material guide rollers, four first rollers are circumferentially arranged on the first supporting frame and are in rolling fit with a first limiting ring on the inner wall of the combustion bin, the material guide mechanism and the inserting mechanism are additionally arranged on the biomass boiler with the combustion-supporting mechanism, the material guide mechanism and the inserting mechanism are in an innovative design of a mechanical structure, so that the technical problems of insufficient combustion and uneven distribution of biomass fuel are jointly solved, and the maintainability of the boiler is greatly improved.

Inventors

  • QI XIANGPING
  • ZHANG XING
  • PU XIN

Assignees

  • 扬州正宇锅炉有限公司

Dates

Publication Date
20260512
Application Date
20250609

Claims (7)

  1. 1. A biomass boiler with a combustion-supporting mechanism comprises a boiler body (1), wherein a hot water bin (2) and a combustion bin (3) are arranged in the boiler body (1), the biomass boiler is characterized in that a guide mechanism (4) is arranged in the combustion bin (3), an inserting mechanism (5) is arranged on the left side of the combustion bin (3), guide rollers (401) with gradually-reduced cylinder diameters from left to right are arranged in the combustion bin (3), a plurality of groups of discharge grooves (402) are circumferentially distributed in the guide rollers (401), a driving motor (501) is arranged on the outer side of the boiler body (1), and is in transmission connection with a connecting frame (512) in the guide rollers (401) through a driving shaft (511) penetrating through the combustion bin (3), a first supporting frame (403) and a second supporting frame (406) are respectively arranged at the right end and the middle of the guide rollers (401), four first rollers (404) are circumferentially arranged on the first supporting frame (403) and are in rolling fit with first limit rings (405) on the inner walls of the combustion bin (3), and the second supporting frame (406) circumferentially arranged on the second supporting frame (403) and are in rolling fit with second limit rings (408).
  2. 2. The biomass boiler with the combustion-supporting mechanism as claimed in claim 1, wherein the bottom of the driving motor (501) is connected with a driving wheel (503) through a bearing bracket (502), and the driving wheel (503) and a limit sliding rail (504) arranged on the outer wall of the boiler body (1) form a sliding pair.
  3. 3. The biomass boiler with the combustion-supporting mechanism as claimed in claim 1, wherein the right side of the driving motor (501) is fixedly connected with a limiting block (505), the outer wall of the boiler body (1) is fixedly connected with a fixing plate (506), and the fixing plate (506) is connected with a butt-joint plug block (510) capable of transversely moving through a telescopic rod (509).
  4. 4. The biomass boiler with the combustion-supporting mechanism of claim 3, wherein a connecting plate (507) extends out of the left side of the fixing plate (506), a screw hole in threaded fit with a screw body (508) is formed in the middle of the connecting plate (507), and the tail end of the screw body (508) abuts against the butt-joint block (510).
  5. 5. A biomass boiler with combustion supporting mechanism as set forth in claim 1, wherein the axial spacing of the discharge grooves (402) on the surface of the guide roller (401) increases gradually along the material conveying direction.
  6. 6. The biomass boiler with the combustion supporting mechanism as set forth in claim 1, wherein the first roller (404) is slidably connected with the first limiting ring (405), and the second roller (407) is slidably connected with the second limiting ring (408).
  7. 7. A biomass boiler with combustion supporting mechanism as set forth in claim 1, wherein said drive shaft (511) is detachably connected with said connecting frame (512) by means of a key connection.

Description

Biomass boiler with combustion-supporting mechanism Technical Field The utility model relates to the field of biomass boilers, in particular to a biomass boiler with a combustion supporting mechanism. Background The biomass boiler is environment-friendly boiler equipment which uses agricultural and forestry waste (such as straw, wood dust, firewood and the like) or biomass briquette fuel as energy, converts biomass energy into heat energy through combustion and provides heating, steam or hot water for industrial or civil scenes, and has the characteristics of low carbon, cleanness and sustainable utilization, and is characterized in that renewable resources are used for replacing fossil fuel, and greenhouse gas emission is reduced through carbon neutral circulation. In the operation of the biomass boiler, a compact stacking layer is easily formed due to the limitation of physical characteristics and mechanical layout, the lower-layer fuel is insufficient in volatile pyrolysis and delayed in fixed carbon combustion caused by the blocking of oxygen diffusion, meanwhile, the fuel in a combustion area is unevenly distributed to cause the coexistence phenomenon of local high-temperature coking and low-temperature flameout, the longitudinal distribution unbalance of a fire grate is caused by the insufficient suitability of the existing feeding device, the energy waste and the environmental protection risk are aggravated due to the emission of unburnt carbon particles, and a low-porosity sintering layer is formed by the melting of viscous substances generated by the pyrolysis of the stacking fuel and ash, so that an oxygen diffusion channel is further aggravated. Disclosure of utility model The utility model aims to provide a biomass boiler with a combustion supporting mechanism, so as to solve the problems in the background technology. In order to achieve the above purpose, the present utility model provides the following technical solutions: A biomass boiler with a combustion supporting mechanism comprises a boiler body, wherein a hot water bin and a combustion bin are arranged in the boiler body, a material guiding mechanism is arranged in the combustion bin, an inserting mechanism is arranged on the left side of the combustion bin, material guiding rollers with tapered diameters from left to right are arranged in the combustion bin, a plurality of groups of material discharging grooves are circumferentially distributed on the material guiding rollers, a driving motor is arranged on the outer side of the boiler body and is in transmission connection with a connecting frame in the material guiding rollers through a driving shaft penetrating through the combustion bin, a first supporting frame and a second supporting frame are respectively arranged at the right end and the middle of the material guiding rollers, four first rollers are circumferentially arranged on the first supporting frame and are in rolling fit with a first limiting ring on the inner wall of the combustion bin, and four second rollers are circumferentially arranged on the second supporting frame and are in rolling fit with a second limiting ring on the inner wall of the combustion bin. Optionally, the bottom of the driving motor is connected with a driving wheel through a bearing bracket, and the driving wheel and a limit sliding rail arranged on the outer wall of the boiler body form a sliding pair. Optionally, the stopper is fixed to driving motor right side rigid coupling, the boiler body outer wall links firmly the fixed plate, but the fixed plate passes through the butt joint inserted block of telescopic link connection lateral shifting. Optionally, the connecting plate extends in the left side of fixed plate, the connecting plate middle part is equipped with the screw with screw body screw thread complex, the terminal butt joint of screw body inserts the piece. Optionally, the axial distance of the discharge grooves on the surface of the material guide roller is gradually increased along the material conveying direction. Optionally, the first roller is slidably connected with the first limiting ring, and the second roller is slidably connected with the second limiting ring. Optionally, the driving shaft is detachably connected with the connecting frame by adopting a key connection mode. Compared with the prior art, the utility model has the beneficial effects that: 1. According to the utility model, the material guiding mechanism is arranged, the conical material guiding roller is matched with the gradient material discharging groove to realize the three-dimensional space uniform distribution of fuel, a compact layer formed by fuel accumulation in a traditional boiler is effectively broken, the pyrolysis efficiency of volatile matters is greatly improved, and the composite supporting system formed by the four groups of rollers and the limiting rings can bear high-temperature deformation, so that the rotation stability is ensured under the