Energy-saving biomass boilerTechnical Field
The invention relates to the technical field of boilers, in particular to an energy-saving biomass boiler.
Background
The biomass energy is an important component of renewable energy, and the biomass fuel is a novel clean fuel which is formed (such as block-shaped, granular-shaped and the like) by taking agricultural and forestry wastes as raw materials and preparing the raw materials into various shapes (such as block-shaped, granular and the like) through processes of crushing, mixing, extruding, drying and the like and can be directly combusted. Compared with the traditional fossil fuel, the fuel has the advantages of convenient feeding, reduced labor intensity of workers, improved labor environment, large fuel calorific value, high purity, no corrosion to the boiler, prolonged service life of the boiler, reduced environmental pollution, little ash after combustion, greatly reduced site for stacking the coal slag, reduced slag discharge cost, high-quality organic potash fertilizer with high grade, recyclability and the like, thereby being widely applied to various boilers.
Flue gas generated by combustion of the biomass boiler enters an ash hopper after passing through a dust removal device, and a large amount of slag is accumulated in the ash hopper and needs to be cleaned regularly. At present, the conventional method is to directly clean and cool the slag, but the slag has higher heat, and the direct cleaning and cooling can cause huge energy waste.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides an energy-saving biomass boiler to improve the energy utilization rate and reduce the waste.
The invention is realized by the following technical scheme:
An energy-saving biomass boiler comprises a boiler body, wherein a first cleaning chamber is connected below the boiler body, a second cleaning chamber is connected behind the first cleaning chamber, cooling pipes are arranged in the first cleaning chamber and the second cleaning chamber, a water inlet and a water outlet are formed in two ends of each cooling pipe respectively, and cold water is injected into the cooling pipes through the water inlets; the inside of first clean-up room still is equipped with the slagging-off board, it is equipped with a plurality of slag holes on the slagging-off board.
The energy-saving biomass boiler separates completely combusted furnace ash from incompletely combusted large slag, the furnace ash enters the first cleaning chamber, the large slag enters the second cleaning chamber, heat generated by the furnace ash and the slag is transferred to cold water in the cooling pipe, and the cold water is heated to reuse the heat.
Preferably, the cooling pipe in the first cleaning chamber is positioned below the deslagging plate, the cooling pipe in the second cleaning chamber is positioned at the top of the first cleaning chamber, furnace ash particles are small, the cooling pipe cannot be damaged, the cooling pipe can be surrounded after the deslagging plate is contacted with the cooling pipe, and heat exchange is improved; and the slag particles are large, and if the cooling pipe is arranged at the bottom of the second cleaning chamber, the cooling pipe is easily damaged.
Preferably, the cooling pipes are arranged in a snake-shaped longitudinal mode or a snake-shaped cylindrical mode, and heat exchange is increased.
Preferably, the water inlet and the delivery port of cooling tube all are located the side of first clean-up room and second clean-up room, and the delivery port sets up in the top of water inlet, are connected with the intake pump on the water inlet for there is cold water process in the cooling tube at a moment, avoids the heat to cause the injury to the cooling tube.
Preferably, the slag removing plate is gradually inclined towards the rear end of the first cleaning chamber along the direction from bottom to top, so that slag can smoothly enter the second cleaning chamber.
Preferably, remove and install the regulating plate on the slag plate, be equipped with on the regulating plate a plurality of and remove the slag plate on the corresponding through-hole of slag notch, just the regulating plate can slide on the slag plate to change the size in slag notch aperture, make the slag plate have the function of adjusting the slag notch size, can adjust the particle size of ashes and slag according to the biomass fuel of difference.
Preferably, the two sides of the deslagging plate are provided with sliding rails, and the adjusting plate can move on the sliding rails, so that the adjusting plate can move smoothly.
Preferably, the adjusting plate extends out of the front side surface of the first cleaning chamber, a limiting block is fixed at the front end of the adjusting plate, the upper end of the adjusting plate is prevented from entering the first cleaning chamber, and the adjusting plate is convenient to pull.
Preferably, the part of the adjusting plate extending out of the first cleaning chamber is provided with a fastening bolt, and after the fastening bolt is abutted to the upper plate surface of the slag removing plate, the adjusting plate cannot move, so that the adjusting plate is fixed.
The invention has the beneficial effects that: the biomass boiler reuses the heat of the slag, improves the energy utilization rate and reduces the waste; meanwhile, the biomass boiler has the function of screening the size of the slag, and can screen the reusable slag according to different biomass fuels, so that the utilization rate is further improved.
Drawings
In order to more clearly illustrate the detailed description of the invention or the technical solutions in the prior art, the drawings that are needed in the detailed description of the invention or the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.
Fig. 1 is a front view of an energy-saving biomass boiler according to an embodiment of the present invention;
Fig. 2 and 3 are schematic structural diagrams of a deslagging plate and an adjusting plate of the energy-saving biomass boiler shown in fig. 1.
In the attached drawing, 1 furnace body, 2 first clean-up rooms, 3 second clean-up rooms, 4 cooling tubes, 5 water inlets, 6 delivery ports, 7 slag holes, 8 regulating plates, 9 through holes, 10 slide rails, 11 fastening bolts, 12 slag removing plates and 13 limiting blocks.
Detailed Description
in order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.
for ease of description, spatially relative terms, such as "upper," "lower," "left," "right," and the like, may be used herein to describe one element or feature's relationship to another element or feature as illustrated in the figures. It will be understood that the spatial terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "lower" can encompass both an upper and a lower orientation.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
With reference to fig. 1-3, the energy-saving biomass boiler of the embodiment includes a furnace body 1, a first cleaning chamber 2 is connected below the furnace body 1, a second cleaning chamber 3 is connected behind the first cleaning chamber 2, flashboards are arranged at the lower ends of the furnace body 1, the first cleaning chamber 2 and the second cleaning chamber 3, in addition, a storage box or a conveying device is arranged below the first cleaning chamber 2 and the second cleaning chamber 3, cooling pipes 4 are arranged inside the first cleaning chamber 2 and the second cleaning chamber 3, a water inlet 5 and a water outlet 6 are respectively arranged at two ends of each cooling pipe 4, and cold water is injected into the cooling pipes 4 through the water inlet 5; the inside of first clean-up room 2 still is equipped with except that slag plate 12, it is equipped with a plurality of slag holes 7 on the board 12 to remove the slag.
In the embodiment, the cooling pipe 4 in the first cleaning chamber 2 is positioned below the slag removing plate 12, and the cooling pipe 4 in the second cleaning chamber 3 is positioned at the top of the slag removing plate; the cooling pipes 4 are arranged in a snake-shaped longitudinal arrangement or a snake-shaped cylindrical arrangement; the water inlet 5 and the water outlet 6 of the cooling pipe 4 are both located on the side faces of the first cleaning chamber 2 and the second cleaning chamber 3, the water outlet 6 is arranged above the water inlet 5, and the water inlet 5 is connected with a water inlet pump (not shown in the figure).
In this embodiment, the slag removing plate 12 gradually inclines towards the rear end of the first cleaning chamber 2 along the direction from bottom to top; as shown in fig. 3, an adjusting plate 8 is installed on the deslagging plate 12, a plurality of through holes 9 corresponding to the slag hole on the deslagging plate 12 are formed in the adjusting plate 8, and the adjusting plate 8 can slide on the deslagging plate 12 to change the size of the aperture of the slag hole 7 (one slag hole is illustrated in fig. 3 for example); two sides of the deslagging plate 12 are provided with slide rails 10, and the adjusting plate 8 can move on the slide rails 10; the adjusting plate 8 extends out of the front side surface of the first cleaning chamber 2, and a limiting block 13 is fixed at the front end of the adjusting plate; the part of regulating plate 8 that stretches out first clearance room 2 installs fastening bolt 11, and after fastening bolt 11 and the last face butt of slagging-off board 12, regulating plate 8 can't remove.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention, and they should be construed as being included in the following claims and description.