CN218781319U - Feeding system based on boiler coal burning coupling biomass combustion - Google Patents

Abstract

The utility model relates to a boiler fuel's feed technical field, feed system based on coal-fired coupling biomass combustion of boiler, include: the side wall and the bottom of one side of the box body are both in an open shape; the fuel conveying mechanism is arranged at the upper part of the inner cavity of the box body; the filling mechanism is positioned at the top of the box body; and the air-admission type coal blanking mechanism is positioned below the fuel conveying mechanism, and one end of the air-admission type coal blanking mechanism is arranged outside the box body. The feeding system for the boiler coal-fired coupling biomass combustion effectively combines the characteristics of a coal-fired unit and a biomass direct-fired unit, realizes multi-point feeding simultaneously, ensures uniform feeding, improves the burnout efficiency, and has the advantage of environmental protection after the coal and the biomass are coupled.

Description

Feeding system based on boiler coal burning coupling biomass combustion

Technical Field

The utility model belongs to the technical field of boiler fuel's feed, concretely relates to feed system based on the burning of coal-fired coupling living beings of boiler.

Background

The capacity of the pure-combustion biomass power generating set is generally smaller (less than or equal to 50 MW), correspondingly, the steam parameters of the boiler are also lower, and are generally high-pressure parameters or lower, so the power supply efficiency of the pure-combustion biomass power generating project is generally not higher than 30%.

The granted publication date of the chinese patent publication No. CN214038384U is 24/8/2021. It discloses a cogeneration combustion device coupling biomass energy, and the background art thereof is described as follows: the biomass direct-fired power generation is the most common and effective method in the current biomass energy application mode, but is limited by the characteristics of low biomass ash melting point, dispersed distribution and the like, and compared with a coal-fired unit, the biomass direct-fired power generation unit has the advantages of low parameters, small unit scale and large difference from the high-parameter coal-fired unit in the aspects of fuel utilization efficiency and pollutant discharge.

Therefore, compared with a coal-fired unit, the biomass direct-fired power generating unit is not as effective as the coal-fired unit, but is not environment-friendly.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model aims at providing a feed system based on the burning of the coal-fired coupling biomass of boiler to solve present coal-fired unit of comparing, the effect of the generating set of living beings direct combustion is not as than coal-fired unit, and coal-fired unit does not have the technical defect of the generating set environmental protection of living beings direct combustion again.

In order to achieve the above purpose, the utility model provides a following technical scheme: feeding system based on burning coal of boiler coupling biomass burning includes:

the side wall and the bottom of one side of the box body are both in an open shape;

the fuel conveying mechanism is arranged on the upper part of the inner cavity of the box body;

the filling mechanism is arranged at the top of the box body; and

can be convenient for the formula coal unloading mechanism that admits air of the coal of boiler and biomass fuel unloading, it is installed in fuel conveying mechanism's below, and one end sets up in the outside of box.

As a further proposal of the utility model, one side of the upper part of the opposite side wall of the box body is provided with a first mounting hole, and the side close to the first mounting hole is provided with a second mounting hole;

the fuel conveying mechanism comprises a driving roll shaft and a driven roll shaft, shaft levers are arranged at two ends of the driving roll shaft and two ends of the driven roll shaft, the shaft levers at the two ends of the driving roll shaft are rotatably arranged in the first mounting holes, and the shaft levers at the two ends of the driven roll shaft are rotatably arranged in the second mounting holes;

a motor is arranged on a shaft rod of one of the driving roll shafts, the motor is fixedly arranged on the side wall of the outer side of the box body, and the end part of an output shaft of the motor is fixedly connected with the end part of a shaft rod at one end of the driving roll shaft;

and a plurality of fuel conveying belts are sequentially sleeved and mounted between the driving roll shaft and the driven roll shaft.

As a further preferable scheme of the present invention, a plurality of first mounting grooves are formed at the top of the box body, and each first mounting groove corresponds to each fuel conveying belt;

the number of the packing mechanisms is multiple, and each packing mechanism and each first mounting groove can correspond to each other;

the filling mechanism comprises an upper feeding pipe, the upper feeding pipe is fixedly installed in the first installation groove, the bottom of the upper feeding pipe is located above the fuel conveying belt, and a hopper is arranged on the upper feeding pipe.

As a preferred scheme of the utility model, the air-intake type coal blanking mechanism comprises a plurality of lower feeding pipes, each lower feeding pipe can correspond to each fuel conveying belt, and each lower feeding pipe is arranged below the fuel conveying belt;

the bottom of the lower feeding pipe is fixedly provided with a discharging inclined pipe, and the lower feeding pipe is communicated with the discharging inclined pipe;

a plurality of second mounting grooves are formed in the side wall of one side of the box body, and each second mounting groove can correspond to each discharging inclined pipe;

the bottom of ejection of compact pipe chute is outwards worn out by the second mounting groove.

As a further scheme of the utility model, two outsides the lateral wall of inlet pipe all with the inside wall fixed connection of box down, adjacent equal fixed mounting has the connecting block between the inlet pipe down.

As a further preferred scheme of the utility model, be provided with unloading adjustment mechanism between last feed pipe and the hopper.

As a preferred scheme of the utility model, the blanking adjusting mechanism comprises a material box which is fixedly arranged between an upper feeding pipe and a hopper, and the upper feeding pipe, the hopper and the material box can be communicated with each other;

and a coal hopper outlet sliding flashboard is inserted and installed on the material box.

As a further proposal of the utility model, the upper part of the lower inlet pipe is inserted and installed with an isolation flashboard.

As a further preferred scheme of the utility model, the upper portion fixed mounting of inlet pipe has first intake pipe down, first intake pipe communicates with inlet pipe down each other, the top of ejection of compact pipe chute is formed with the air inlet, the bottom lower part fixed mounting of ejection of compact pipe chute has the second intake pipe, the second intake pipe communicates with ejection of compact pipe chute each other.

Compared with the prior art, the utility model provides a feed system based on coal-fired coupling living beings burning of boiler has following beneficial effect:

1. the feeding system for coupling the coal burning of the boiler with the biomass combustion effectively combines the characteristics of a coal-fired unit and a biomass direct-fired unit, and in the feeding system, fuel can enter a fuel conveying mechanism through a filling mechanism, and the fuel conveying mechanism can convey the fuel to an air-admission type coal discharging mechanism after working and flows into the combustion boiler through the air-admission type coal discharging mechanism.

Meanwhile, the feeding system for coupling the coal burning of the boiler with the biomass combustion can realize multi-point feeding, so that the feeding is uniform, the burnout efficiency is improved, and the feeding system also has the advantage of environmental protection after the coal burning is coupled with the biomass;

each different hopper can be used for filling biomass fuel and boiler fuel respectively, and then is conveyed to the lower ring section through a corresponding fuel conveying belt, so that the effective combination of the biomass fuel and the fire coal is realized.

2. The utility model discloses well unloading adjustment mechanism can reach the effect of control fuel entering volume.

3. The utility model discloses an insert coal scuttle export slide shutter and cut off the fuel in with last feeding tube and hopper, through extracting coal scuttle export slide shutter, can make and be linked together between last feeding tube, hopper and the magazine, make the fuel flow downwards.

4. The utility model discloses the effect of well isolation flashboard is similar with the effect of coal scuttle export slide gate, can play the effect of the fuel of whereabouts in the inlet pipe under the wall to the effect of the volume of fuel in the control entering ejection of compact pipe chute realizes the blowing when extracting the isolation flashboard, realizes the outage when inserting the isolation flashboard.

5. The utility model discloses well first intake pipe, air inlet and second intake pipe can sweep the air respectively on the formula coal unloading mechanism that can admit air different positions to the unloading speed of fuel in inlet pipe and the ejection of compact pipe chute under for avoid its inside jam.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only examples of the present invention, and those skilled in the art can also obtain other drawings according to these drawings without any creative effort.

Fig. 1 is a schematic structural diagram of an embodiment of the present invention;

fig. 2 is a schematic structural view of a partial cross section according to an embodiment of the present invention;

fig. 3 is a schematic structural view of the disassembled box body of the embodiment of the present invention;

fig. 4 is a schematic structural view of a main view of an air-permeable coal blanking mechanism according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a box body according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of the feeding system and the combustion boiler in an embodiment of the present invention.

Reference numerals:

1-a box body; 101-a first mounting groove; 102-a first mounting hole; 103-a second mounting hole; 104-a second mounting groove; 2-a fuel delivery mechanism; 201-driving roll shaft; 202-driven roll axis; 203-a motor; 204-a fuel delivery belt; 3-a packing mechanism; 301-upper feed pipe; 302-a hopper; 4-a blanking adjusting mechanism; 401-a cartridge; 402-coal hopper outlet slide gate; 5-an air-admission type coal blanking mechanism; 501-feeding a material pipe; 502-discharge chute; 503-a first intake pipe; 504-air inlet; 505 — a second intake pipe; 506-isolation gates; 507-connecting blocks; 6-a combustion boiler; 7-boiler filling port.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the following describes the embodiments of the present invention in further detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

In the description of the embodiments of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only used for convenience in describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the embodiments of the present invention.

In the description of the embodiments of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, integrally connected, or detachably connected; may be communication within two elements; the terms may be directly connected or indirectly connected through an intermediate, and those skilled in the art can understand the specific meanings of the above terms in the embodiments of the present invention in specific situations.

The first embodiment is as follows:

referring to fig. 1-6, an embodiment of the present invention is a feeding system based on boiler coal burning coupled biomass combustion, including: the box body 1 is provided with an opening on the side wall and the bottom at one side of the box body 1; the fuel conveying mechanism 2 can facilitate the conveying of boiler coal and biomass fuel, and the fuel conveying mechanism 2 is arranged at the upper part of the inner cavity of the box body 1; the filling mechanism 3 can be used for conveniently filling the boiler coal and the biomass fuel, and the filling mechanism 3 is arranged at the top of the box body 1; and can be convenient for formula coal unloading mechanism 5 that admits air of the fire coal of boiler and biomass fuel unloading, formula coal unloading mechanism 5 that admits air is installed in the below of fuel conveying mechanism 2, and one end sets up in the outside of box 1, and formula coal unloading mechanism 5 that admits air that is located outside one end can be pegged graft and install in combustion boiler 6, and after the fire coal of boiler and biomass fuel got into combustion boiler 6 through formula coal unloading mechanism 5 that admits air in, the fuel can burn in combustion boiler 6.

The fuel can enter the fuel conveying mechanism 2 through the filling mechanism 3, and after the fuel conveying mechanism 2 works, the fuel can be conveyed to the air-inlet type coal blanking mechanism 5 and flows into the combustion boiler 6 through the air-inlet type coal blanking mechanism 5.

In the embodiment, the feeding system for coupling the coal-fired boiler with the biomass combustion can achieve high conversion efficiency by using the high-efficiency power generation system of the coal-fired main boiler; another advantage of parallel combustion is the increased potential for difficult to use biomass fuels, such as high alkali and chlorine content straw; the biomass ash and the coal ash are separated, so that the ash and the slag are convenient to treat respectively.

The second embodiment is improved on the basis of the first embodiment, referring to the attached drawings 1-6:

furthermore, a first mounting hole 102 is formed in one side of the upper portion of the opposite side wall of the box body 1, and a second mounting hole 103 is formed in one side close to the first mounting hole 102.

The fuel conveying mechanism 2 includes a drive roller shaft 201 and a driven roller shaft 202, shaft rods are respectively arranged at two ends of the drive roller shaft 201 and the driven roller shaft 202, the shaft rods at two ends of the drive roller shaft 201 are rotatably installed in the first installation hole 102, and the shaft rods at two ends of the driven roller shaft 202 are rotatably installed in the second installation hole 103, so that the installation and rotation of the drive roller shaft 201 and the driven roller shaft 202 can be facilitated.

A motor 203 is arranged on a shaft rod of one of the driving roller shafts 201, the motor 203 is fixedly installed on the outer side wall of the box body 1, the end part of an output shaft of the motor 203 is fixedly connected with the end part of one end shaft of the driving roller shaft 201, and after the motor 203 is connected into an external municipal power supply, the rotation of the motor 203 during working can drive the rotation of the driving roller shaft 201.

A plurality of fuel conveying belts 204 are sequentially sleeved and mounted between the driving roller shaft 201 and the driven roller shaft 202, fuel can be conveniently conveyed under the arrangement of the plurality of fuel conveying belts 204, and biomass fuel and boiler coal can be respectively conveyed through the plurality of fuel conveying belts 204.

The top of the box body 1 is provided with a plurality of first installation grooves 101, and the positions of each first installation groove 101 and each fuel conveying belt 204 correspond to each other.

The packing mechanism 3 is provided in plurality, and each packing mechanism 3 and each first mounting groove 101 can correspond to each other.

The packing mechanism 3 comprises an upper feeding pipe 301, the upper feeding pipe 301 is fixedly installed in the first installation groove 101, the bottom of the upper feeding pipe 301 is located above the fuel conveying belts 204, a hopper 302 is arranged on the upper feeding pipe 301, each upper feeding pipe 301 can also correspond to each fuel conveying belt 204, and the hopper 302 is arranged on the upper feeding pipe 301, so that each hopper 302 can also correspond to each fuel conveying belt 204, each different hopper 302 can be used for filling biomass fuel and boiler fuel respectively, and the fuel conveying belts 204 corresponding to the hoppers are conveyed to a lower ring section.

A plurality of hoppers 302 and a plurality of fuel transfer belts 204 are provided to enable multi-point feeding.

The air-admission type coal blanking mechanism 5 comprises a plurality of lower feeding pipes 501, each lower feeding pipe 501 can correspond to each fuel conveying belt 204, each lower feeding pipe 501 is arranged below the fuel conveying belt 204, and when fuel on each fuel conveying belt 204 is conveyed, the fuel can fall into the corresponding lower feeding pipe 501.

The bottom fixed mounting of lower inlet pipe 501 has ejection of compact pipe chute 502, and lower inlet pipe 501 communicates with ejection of compact pipe chute 502 each other, and the fuel in lower inlet pipe 501 can drop in to combustion boiler 6 through ejection of compact pipe chute 502 to burn in combustion boiler 6.

A plurality of second installation grooves 104 are formed in the side wall of one side of the box body 1, and each second installation groove 104 can correspond to each discharge inclined pipe 502.

The bottom of ejection of compact pipe chute 502 is worn out outwards by second mounting groove 104, and every second mounting groove 104 can be convenient for wearing out of corresponding ejection of compact pipe chute 502 to it is fixed, wherein, combustion boiler 6 still has boiler filler 7 towards one side lower part of box 1, and the bottom of ejection of compact pipe chute 502 is through penetrating in boiler filler 7, in order to extend into combustion boiler 6's inner chamber, sends into combustion boiler 6's inner chamber with fuel.

The lateral wall of the lower inlet pipe 501 in two outsides all with the inside wall fixed connection of box 1, equal fixed mounting has connecting block 507 between the lower adjacent inlet pipe 501 to can be convenient for a plurality of lower inlet pipes 501 fixed in the box 1 inner chamber.

A blanking adjusting mechanism 4 is arranged between the upper feeding pipe 301 and the hopper 302, and the blanking adjusting mechanism 4 can achieve the effect of controlling the fuel inlet amount.

The blanking adjusting mechanism 4 comprises a material box 401, the material box 401 is fixedly arranged between the upper material feeding pipe 301 and the hopper 302, and the upper material feeding pipe 301, the hopper 302 and the material box 401 can be communicated with each other.

The hopper 401 is provided with a hopper outlet slide shutter 402 in an inserted manner, the hopper outlet slide shutter 402 is inserted to separate the fuel in the upper feed pipe 301 and the hopper 302, and the hopper outlet slide shutter 402 is pulled out to communicate the upper feed pipe 301, the hopper 302 and the hopper 401, so that the fuel flows downward.

The isolation flashboard 506 is inserted and mounted on the upper portion of the lower feeding pipe 501, the isolation flashboard 506 has a function similar to that of the coal hopper outlet sliding flashboard 402, and can play a role in isolating falling fuel in the lower feeding pipe 501 so as to control the amount of the fuel entering the discharging inclined pipe 502, discharging can be achieved when the isolation flashboard 506 is pulled out, and material breaking can be achieved when the isolation flashboard 506 is inserted.

The upper portion fixed mounting of lower inlet pipe 501 has first intake pipe 503, first intake pipe 503 communicates with lower inlet pipe 501 each other, the top of ejection of compact pipe chute 502 is formed with air inlet 504, the bottom lower part fixed mounting of ejection of compact pipe chute 502 has second intake pipe 505, second intake pipe 505 communicates with ejection of compact pipe chute 502 each other, first intake pipe 503, air inlet 504 and second intake pipe 505 can sweep the air on the different positions that can admit air formula coal unloading mechanism 5 respectively, in order to accelerate the unloading speed of fuel in lower inlet pipe 501 and the ejection of compact pipe chute 502, avoid its inside jam.

The different embodiments can be combined, replaced and collocated with each other.

While there has been shown and described what are considered to be preferred embodiments of the invention, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention.

Claims (9)

1. Feeding system based on burning coal coupling biomass of boiler is characterized in that includes:

the side wall and the bottom of one side of the box body (1) are both in an opening shape;

the fuel conveying mechanism (2) can be used for conveying the boiler coal and the biomass fuel conveniently and is arranged on the upper part of the inner cavity of the box body (1);

the filling mechanism (3) can facilitate filling of boiler coal and biomass fuel and is arranged at the top of the box body (1); and

can be convenient for formula coal unloading mechanism (5) that admits air of the coal of boiler and biomass fuel unloading, it installs in the below of fuel conveying mechanism (2), and one end sets up in the outside of box (1).

2. The boiler coal-fired coupled biomass combustion based feed system of claim 1, wherein: a first mounting hole (102) is formed in one side of the upper portion of the side wall opposite to the box body (1), and a second mounting hole (103) is formed in one side close to the first mounting hole (102);

the fuel conveying mechanism (2) comprises a driving roll shaft (201) and a driven roll shaft (202), shaft levers are arranged at two ends of the driving roll shaft (201) and two ends of the driven roll shaft (202), the shaft levers at the two ends of the driving roll shaft (201) are rotatably installed in the first installation hole (102), and the shaft levers at the two ends of the driven roll shaft (202) are rotatably installed in the second installation hole (103);

a motor (203) is arranged on a shaft rod of one of the driving roll shafts (201), the motor (203) is fixedly arranged on the outer side wall of the box body (1), and the end part of an output shaft of the motor (203) is fixedly connected with the end part of one end shaft of the driving roll shaft (201);

and a plurality of fuel conveying belts (204) are sequentially sleeved and mounted between the driving roller shaft (201) and the driven roller shaft (202).

3. A boiler coal-fired coupled biomass combustion based feed system as in claim 2, wherein: the top of the box body (1) is provided with a plurality of first installation grooves (101), and the positions of each first installation groove (101) and each fuel conveying belt (204) correspond to each other;

the packing mechanisms (3) are arranged in a plurality, and each packing mechanism (3) and each first mounting groove (101) can correspond to each other;

the filling mechanism (3) comprises an upper feeding pipe (301), the upper feeding pipe (301) is fixedly installed in the first installation groove (101), the bottom of the upper feeding pipe (301) is located above the fuel conveying belt (204), and a hopper (302) is arranged on the upper feeding pipe (301).

4. The boiler coal-fired coupled biomass combustion based feed system of claim 3, wherein: the air-chargeable coal blanking mechanism (5) comprises a plurality of lower feeding pipes (501), each lower feeding pipe (501) can correspond to each fuel conveying belt (204), and each lower feeding pipe (501) is arranged below the fuel conveying belt (204);

the bottom of the lower feeding pipe (501) is fixedly provided with a discharging inclined pipe (502), and the lower feeding pipe (501) is communicated with the discharging inclined pipe (502);

a plurality of second installation grooves (104) are formed in the side wall of one side of the box body (1), and each second installation groove (104) can correspond to each discharge inclined pipe (502);

the bottom end of the discharging inclined tube (502) penetrates out of the second mounting groove (104).

5. The boiler coal-fired coupled biomass combustion based feed system of claim 4, wherein: the lateral wall of lower inlet pipe (501) in two outsides all with the inside wall fixed connection of box (1), adjacent equal fixed mounting has connecting block (507) between lower inlet pipe (501).

6. A boiler coal-fired coupled biomass combustion based feed system as in claim 3, wherein: and a blanking adjusting mechanism (4) is arranged between the upper feeding pipe (301) and the hopper (302).

7. The boiler coal-fired coupled biomass combustion based feed system of claim 6, wherein: the blanking adjusting mechanism (4) comprises a material box (401), the material box (401) is fixedly arranged between the upper feeding pipe (301) and the hopper (302), and the upper feeding pipe (301), the hopper (302) and the material box (401) can be communicated with each other;

and a coal hopper outlet sliding gate plate (402) is inserted and mounted on the material box (401).

8. The boiler coal-fired coupled biomass combustion based feed system of claim 4, wherein: the upper part of the lower feeding pipe (501) is provided with an isolation flashboard (506) in an inserted manner.

9. The boiler coal-fired coupled biomass combustion based feed system of claim 4, wherein: the upper portion fixed mounting of lower inlet pipe (501) has first intake pipe (503), first intake pipe (503) and lower inlet pipe (501) communicate with each other, the top of ejection of compact pipe chute (502) is formed with air inlet (504), the bottom lower part fixed mounting of ejection of compact pipe chute (502) has second intake pipe (505), second intake pipe (505) and ejection of compact pipe chute (502) communicate with each other.

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