CN220541070U - Rotary air guide device of straw bundle combustion direct-fired biomass boiler - Google Patents

Abstract

The utility model discloses a rotary air guide device of a straw bundle burning direct-fired biomass boiler, which comprises a feeding hopper, a furnace body and a conveying mechanism, wherein a discharge hole of the feeding hopper is mutually installed and connected with one side of the furnace body, the conveying mechanism is assembled at the bottom end of an inner cavity of the furnace body, and a plurality of shredding rolls are sequentially installed on the outer walls of the feeding hopper and the furnace body in a penetrating manner from left to right. The device is through changing the rotation direction of first cutter body and second cutter body, not only can evenly thoroughly break up the material so that burn, moreover, it adopts unique design, avoid the material to strike when the feeding and lead to shredding roller and the crooked condition of first cutter body deformation to take place, protection internal equipment has improved life, in addition, borrow the wind direction of changing the blast air, thereby play the effect of preheating, oxygenation combustion-supporting and blowing away the material, the efficiency of material burning has been improved greatly, be convenient for to material processing, flexible in use, the practicality is strong, satisfy the user demand on the existing market.

Description

Rotary air guide device of straw bundle combustion direct-fired biomass boiler

Technical Field

The utility model relates to the technical field of agricultural machinery, in particular to a rotary air guide device of a straw bundle combustion direct-fired biomass boiler.

Background

At present, the existing straw bundle burning boiler cannot ensure that straw bundles are fully burnt, and the straw bundles are naturally burnt in the boiler by using a blower to blow air, so that the combustion speed is low, and the problems of incomplete straw combustion and low heat efficiency exist due to the fact that the straw bundles are large; the existing boiler is internally provided with two reamer blades, and the problem of shutdown overhaul caused by deformation and bending of the reamer blades due to impact during feeding is often solved; the existing design does not have oxygenation and combustion supporting, so that the working efficiency is low; the rotation direction of the reamer in the prior art cannot be freely controlled, and fuel can be mixed in a hopper due to single direction of the reamer, and the fuel cannot be shredded timely, uniformly, effectively and controllably, so that the control of the furnace temperature is difficult, and the aim of accurately controlling the furnace temperature cannot be fulfilled.

Disclosure of Invention

The utility model aims to provide a rotary air guide device of a straw bundle combustion direct-fired biomass boiler, which aims to solve the problems in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a straw bundle burns rotatory air ducting of living beings boiler, includes hopper, furnace body and transport mechanism, the discharge gate of hopper and one side of furnace body are installed each other and are connected, transport mechanism assembles in the inner chamber bottom of furnace body, from left to right run through a plurality of shredding rolls of installation on the outer wall of hopper and furnace body in proper order, shredding roll's outer wall circumference is equipped with a plurality of first cutter body, first rotatory air guide joint is all installed to hopper and furnace body's outer wall, shredding roll's front and back both ends all run through first rotatory air guide joint, first rotatory air guide joint's rear side is provided with first motor, first sprocket is all installed to first motor's output end and shredding roll's outer wall, first sprocket's outer wall all installs first chain, shredding roll's rear side is installed the one end, and the other end of air outlet pipe extends into the inner chamber of hopper and furnace body, shredding roll's front side is installed, first air inlet motor is all installed to first air inlet side, first air guide joint is installed to first front side, second air guide joint is equipped with the second air guide roll's second air guide joint is all installed to the second side, second air guide roll's outer wall is all installed to the second air guide joint is equipped with the second air guide joint, the second air guide roll's outer wall is all installed to the second air guide joint is all installed to the second side, the second air guide joint is equipped with the second chain, the second air guide joint is all installed to the second chain, the front side of second side of air guide roll is installed into the inner wall is provided with the inner chamber of butterfly valve and inner wall, the rear side of the second air inlet pipe is provided with a second fan, and the output end of the second fan is fixedly connected with the opening of the second air inlet pipe.

Preferably, the number of the shredding rolls is four, and the four shredding rolls are distributed in the upper hopper furnace body in a U shape.

Preferably, an air distribution oxygenation door is arranged in the inner cavity of the furnace body.

Preferably, the inner cavities of the shredding roller, the air outlet pipe, the butterfly valve, the first air inlet pipe and the first fan are all communicated with each other.

Preferably, the stirring roller, the second cutter body, the air outlet, the second air inlet pipe and the inner cavity of the second fan are all communicated with each other.

Compared with the prior art, the utility model has the beneficial effects that: the straw bundle burning direct-fired biomass boiler rotary air guide device can gradually convey materials through the cooperation between the feeding hopper, the furnace body and the conveying mechanism, is matched with other structural parts, is uniformly and fully burnt, is distributed in a U shape through the plurality of shredding rollers, can effectively slow down the impact of the materials during feeding, further protects the shredding rollers and the first cutter body from bending deformation caused by the impact, and can drive the plurality of shredding rollers and the stirring rollers to perform multidirectional rotation through the cooperation between the first rotary air guide connector, the first motor, the first sprocket, the first chain, the second motor, the second sprocket and the second chain, and can guide air into the feeding hopper and the furnace body through the cooperation between the air outlet pipe, the butterfly valve, the first air inlet pipe, the first fan, the air outlet, the second air inlet pipe and the second fan, so that the materials can be better burnt;

the scheme adopts a four-reamer semi-annular structure to form a semicircular and U-shaped structure and perfectly wrap cylindrical fuel, so that the problem of unstable front-back collision in fuel shredding is solved, the problem of furnace shutdown maintenance caused by reamer deformation and bending due to impact during feeding is solved in the original structure, the four-reamer structure can greatly slow down the impact in the fuel descending process to protect the reamer and a transmission mechanism, a pair of reamer cooling wind return hoppers can be separated out due to the four-reamer structure, the fuel to be burnt or already burnt is preheated and oxygenated, and the other pair of reamer cooling wind returns to a hot blast furnace combustion chamber through a pipeline, so that on one hand, waste heat recovery is performed, and on the other hand, the combustion supporting effect is achieved; the four reamer is composed of double motors, each group of rotation direction can be freely controlled, so that fuel can be shredded faster or slower, the fuel supply can be controlled more accurately, and the aim of accurately controlling the furnace temperature is fulfilled

The device not only can evenly thoroughly break up the material through the rotation direction that changes a plurality of first cutter bodies to burn, moreover, it adopts unique design, avoid the material to strike when the feeding and lead to shredding roller and the crooked condition of first cutter body deformation to take place, protection internal equipment has improved life, in addition, borrow the wind direction that changes the blast air, thereby play preheating, oxygenation combustion-supporting and the effect of blowing away the material, the efficiency of material burning has been improved greatly, be convenient for to material processing, flexible in use, the practicality is strong, satisfy the user demand on the current market.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a top view of the interior of the furnace body of the present utility model;

fig. 3 is a side view of a first shredding roll of the present utility model.

In the figure: 1. the feeding hopper, 2, the furnace body, 3, the conveying mechanism, 4, the shredding roller, 5, a first cutter body, 6, a first rotary air guide joint, 7, a first motor, 8, a first sprocket, 9, a first chain, 10, an air outlet pipe, 11, a butterfly valve, 12, a first air inlet pipe, 13, a first fan, 14, a stirring roller, 15, a second cutter body, 16, an air outlet, 17, a second rotary air guide joint, 18, a second motor, 19, a second sprocket, 20, a second chain, 21, a second air inlet pipe, 22, a second fan, 23 and an air distribution oxygenation door.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-3, the present utility model provides a technical solution: the utility model provides a straw bundle burns rotatory air ducting of direct-fired biomass boiler, including feeding hopper 1, furnace body 2 and transport mechanism 3, the discharge gate of feeding hopper 1 and one side interconnect of furnace body 2, transport mechanism 3 assembles in the inner chamber bottom of furnace body 2, a plurality of shredding roller 4 is run through in proper order from left to right on feeding hopper 1 and the outer wall of furnace body 2, shredding roller 4's outer wall circumference is equipped with a plurality of first cutter body 5, feeding hopper 1 and furnace body 2's outer wall all installs first rotatory air guide joint 6, shredding roller 4's front and back both ends all run through first rotatory air guide joint 6, the rear side of first rotatory air guide joint 6 is provided with first motor 7, first sprocket 8 is all installed to first motor 7's output and shredding roller 4's outer wall, first chain 9 is all installed to first sprocket 8's outer wall, shredding roller 4's rear side installs the one end of play tuber pipe 10, the other end of the air outlet pipe 10 extends into the inner cavities of the feeding hopper 1 and the furnace body 2, a butterfly valve 11 is arranged at the front side of the shredding roller 4, a first air inlet pipe 12 is arranged at the front side of the butterfly valve 11, a first fan 13 is arranged at the front side of the first air inlet pipe 12, the output end of the first fan 13 is fixedly connected with the opening of the first air inlet pipe 12, stirring rollers 14 are arranged at the left side and the right side of the outer wall of the furnace body 2 in a penetrating way, a plurality of second cutter bodies 15 are arranged at the circumference of the outer wall of the stirring rollers 14, an air outlet 16 is arranged at the outer wall of the second cutter bodies 15, a second rotary air guide joint 17 is arranged at the outer wall of the furnace body 2, two ends of the stirring rollers 14 penetrate through the second rotary air guide joint 17, a second motor 18 is arranged at the front side of the second rotary air guide joint 17, a second sprocket 19 is arranged at the output end of the second motor 18 and the outer wall of the stirring rollers 14, a second chain 20 is arranged at the outer wall of the second sprocket 19, a second air inlet pipe 21 is arranged at the rear side of the stirring roller 14, a second fan 22 is arranged at the rear side of the second air inlet pipe 21, and the output end of the second fan 22 is fixedly connected with the opening of the second air inlet pipe 21.

As a preferred scheme, the number of the shredding rolls 4 is four, and the four shredding rolls 4 are distributed in the interior of the furnace body 2 of the upper hopper 1 in a U shape.

As a preferable scheme, the inner cavity of the furnace body 2 is provided with an air distribution oxygenation door 23, and internal combustion can be assisted through the air distribution oxygenation door 23.

As a preferable scheme, the inner cavities of the shredding roller 4, the air outlet pipe 10, the butterfly valve 11, the first air inlet pipe 12 and the first fan 13 are all communicated with each other.

Preferably, the inner cavities of the stirring roller 14, the second cutter body 15, the air outlet 16, the second air inlet pipe 21 and the second fan 22 are all communicated with each other.

The electrical components mentioned in the scheme are all the prior art, and the model is only one of the prior art, so long as the electrical components can be used for achieving the purpose in the scheme.

All electric components in the scheme are connected with an adaptive power supply through wires by a person skilled in the art, and an appropriate controller is selected according to actual conditions so as to meet control requirements, specific connection and control sequences, and the electric connection is completed by referring to the working sequence among the electric components in the following working principles, wherein the detailed connection means are known in the art, the working principles and the processes are mainly introduced below, and the electric control is not described any more, and the specific work is as follows.

When the automatic air charging device is used, materials are placed into a furnace body 2 from an upper hopper 1, the placed materials fall onto a shredding roller 4 in a proper manner, a conveying mechanism 3, a first motor 7, a first fan 13, a second motor 18 and a second fan 22 are started, the first motor 7 can drive a first chain wheel 8 to rotate, the shredding roller 4 can be driven by the rotating first chain wheel 8 to drive a first cutter body 5 to rotate together through the transmission of a first chain 9, at the moment, the materials are shredded by the rotating first cutter body 5, the shredded materials fall onto the conveying mechanism 3 and are conveyed into a right combustion chamber in the furnace body 2 to be combusted, in the process of material combustion, the second motor 18 can be driven by the transmission of a second chain 20 to drive a second chain wheel 19, two stirring rollers 14 and a second cutter body 15 on the stirring roller 14 to rotate together, the rotating second cutter body 15 can enable a previous layer of combustion to be opened and further break up the materials, in the process of combustion, the first fan 13 and the second fan 22 can enable the materials to be well blown into the air inlet and outlet rollers 10 and the air outlet rollers 1 and the air inlet and the air outlet rollers 14 to be better in the process of material combustion, and the material is blown into the air inlet and outlet rollers 1 and the air outlet rollers and the air outlet 14 are better in the process of the combustion process;

the device is through changing the rotation direction of first cutter body 5 and second cutter body 15, not only can evenly thoroughly break up the material, so that burn, moreover, it adopts unique design, avoid the material to strike when the feeding and lead to shredding roller 4 and the condition of first cutter body 5 deformation bending to take place, the protection internal equipment, improved life, in addition, by changing the wind direction of blast air, thereby play the effect of preheating, oxygenation combustion-supporting and blowing away the material, the efficiency of material burning has been improved greatly, be convenient for to material processing, flexible in use, the practicality is strong, be fit for promoting.

In the description of the present utility model, it should be understood that the terms "coaxial," "bottom," "one end," "top," "center location," "other end," "upper," "one side," "top," "inner," "front," "center," "two ends," etc. indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present utility model and simplify the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be configured and operate in a particular orientation; meanwhile, unless explicitly specified and limited otherwise, the terms "snap-in," "socket," "weld," "mount," "set," "interference fit," "screw connection," "pin connection," and the like are to be construed broadly, and may be, for example, a fixed connection, a removable connection, or an integral body; can be mechanically or electrically connected; either directly or indirectly through intermediaries, or in communication with each other or in interaction with each other, unless explicitly defined otherwise, the meaning of the terms described above in this application will be understood by those of ordinary skill in the art in view of the specific circumstances.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (5)

1. The utility model provides a rotatory air ducting of straw bundle burns direct-fired biomass boiler, includes hopper (1), furnace body (2) and transport mechanism (3), the discharge gate of hopper (1) is connected with one side mutual installation of furnace body (2), transport mechanism (3) assemble in the inner chamber bottom of furnace body (2), its characterized in that: the utility model discloses a stirrer, including upper hopper (1) and furnace body (2), from left to right in proper order run through installation a plurality of shredding roller (4) on the outer wall of upper hopper (1) and furnace body (2), the outer wall circumference of shredding roller (4) is equipped with a plurality of first cutter body (5), first rotatory air guide joint (6) are all installed to the outer wall of upper hopper (1) and furnace body (2), the front and back both ends of shredding roller (4) all run through first rotatory air guide joint (6), the rear side of first rotatory air guide joint (6) is provided with first motor (7), first sprocket (8) are all installed to the output of first motor (7) and shredding roller (4)'s outer wall, first chain (9) are all installed to the outer wall of first sprocket (8), the one end of air-out pipe (10) is installed to the rear side of shredding roller (4), and the other end of air-out pipe (10) extends the inner chamber of upper hopper (1) and furnace body (2), first air inlet (12) are installed to the front side of shredding roller (4), butterfly valve (11) are installed to the front side (11), first air inlet (12) are installed to the front side (12) of first air inlet (12), first air inlet (12) are installed to the front side (12) of first air pipe (12), the outer wall circumference of stirring roller (14) is equipped with a plurality of second cutter body (15), air outlet (16) have been seted up to the outer wall of second cutter body (15), second rotatory wind-guiding joint (17) are installed to the outer wall of furnace body (2), the both ends of stirring roller (14) all run through second rotatory wind-guiding joint (17), the front side of second rotatory wind-guiding joint (17) is provided with second motor (18), second sprocket (19) are all installed to the output of second motor (18) and the outer wall of stirring roller (14), second chain (20) are all installed to the outer wall of second sprocket (19), second air-supply line (21) are installed to the rear side of stirring roller (14), second fan (22) are installed to the rear side of second air-supply line (21), the opening part of second air-supply line (21) is connected to the output fixed connection of second fan (22).

2. The rotary air guide device of the straw bundle combustion direct-fired biomass boiler as claimed in claim 1, wherein: the number of the shredding rollers (4) is four, and the shredding rollers (4) are distributed in the upper hopper (1) furnace body (2) in a U shape.

3. The rotary air guide device of the straw bundle combustion direct-fired biomass boiler as claimed in claim 1, wherein: an inner cavity of the furnace body (2) is provided with an air distribution oxygenation door (23).

4. The rotary air guide device of the straw bundle combustion direct-fired biomass boiler as claimed in claim 1, wherein: the inner cavities of the shredding roller (4), the air outlet pipe (10), the butterfly valve (11), the first air inlet pipe (12) and the first fan (13) are all communicated with each other.

5. The rotary air guide device of the straw bundle combustion direct-fired biomass boiler as claimed in claim 1, wherein: the inner cavities of the stirring roller (14), the second cutter body (15), the air outlet (16), the second air inlet pipe (21) and the second fan (22) are all communicated with each other.