Boiler fuel proportioning device

Abstract

The utility model discloses a boiler fuel proportioning device, and relates to the technical field of boiler fuel production. The device comprises a mixing bin, a receiving hopper, a driving motor and a heat preservation bin, the top end of the mixing bin is fixedly communicated with a feeding pipe in an annular array mode, the heat preservation bin is arranged above the mixing bin, a sheath is fixed to the lower portion of the inner wall of the heat preservation bin, and a heating sleeve is fixed in the space between the sheath and the heat preservation bin. A motor assembly is fixed to the center of the top end of the heat preservation bin, a driving motor is fixed to the center of the top end of the mixing bin, a material receiving hopper is arranged on the lower portion in the mixing bin, a material guiding ring is fixed to the top end of the material receiving hopper, and weighing sensors are fixed to the bottom end of the material guiding ring in an annular array mode. Through the arrangement of the mixing bin, the material receiving hopper, the driving motor and the heat preservation bin, the problems that the moisture content of furfural residues used during boiler fuel proportioning is not convenient to control, and the fuel proportioning accuracy is affected by fuel proportioning after fuel is weighed through different weighing devices are solved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the boiler fuel production technical field, especially relate to a boiler fuel proportioning device. BACKGROUND

[0002] Due to the policy of encouraging biomass boiler continues to implement, promote the green development of biomass boiler industry, improve the utilization rate of biomass energy, can reduce the degree of dependence on fossil energy, biomass energy has renewable, low cost, small pollution and other characteristics, can effectively replace traditional fossil fuel, widely used in industrial production and life, in production, different biomass fuel combustion flue gas composition is different, by proportioning fuel, can reduce the pollution of flue gas, biomass fuel source is extensive, among them, the furfural in production, will leave a lot of furfural residue, furfural residue has certain calorific value, can be used as fuel for biomass power generation or heating, some furfural production enterprises mix furfural residue and other high calorific value fuel (such as biomass particles, wood chips, etc.) combustion, to improve combustion efficiency and reduce pollutant emissions, but it still has the following disadvantages in the actual use:

[0003] When furfural is used to produce boiler fuel, the moisture content of furfural residue is high, and it needs to be dried and the moisture content of furfural residue needs to be controlled, but when the moisture content of furfural residue is controlled by drying and the like, the moisture content of furfural residue needs a long processing cycle, which affects the production efficiency of boiler fuel.

[0004] Secondly, in the process of boiler fuel proportioning, the materials need to be weighed in advance, multiple weighing devices need to be used, each weighing device has its own weighing error, and the errors of multiple weighing devices are superimposed, which will bring greater proportioning error and affect the component proportioning accuracy of boiler fuel. Utility model content

[0005] The utility model discloses a boiler fuel proportioning device, through setting up mixing bin, receiving hopper, driving motor and heat preservation bin, solve the moisture content of furfural residue used when boiler fuel proportioning is inconvenient, and the problem that the fuel proportioning accuracy is influenced after being weighed by different weighing devices.

[0006] To solve the above technical problems, the utility model is realized by the following technical schemes:

[0007] The utility model discloses a boiler fuel proportioning device, including mixing bin, receiving hopper, driving motor and heat preservation bin, the top of mixing bin is fixedly connected with the inlet pipe of annular array, the top of mixing bin is provided with a heat preservation bin, and the heat preservation bin is arranged between two adjacent inlet pipes, the inner wall lower part of heat preservation bin is fixed with the sheath, the space between sheath and heat preservation bin is fixed with heating jacket, the top central fixed of heat preservation bin has motor assembly, the output of motor assembly is fixed with the stirring shaft that passes through the top of heat preservation bin and the lower part of stirring shaft sets up in the sheath, the stirring shaft peripheral side fixed in heat preservation bin has spiral blade, the top central fixed of mixing bin has driving motor, the lower part of mixing bin is provided with receiving hopper, the top of receiving hopper is fixed with the material guiding ring, the material guiding ring is movably connected in mixing bin, the bottom of material guiding ring is fixedly connected with the weighing sensor of annular array, the bottom of weighing sensor is fixed in the bottom of mixing bin, when working, through mixing bin movable connection material guiding ring, and through material guiding ring connection receiving hopper receives the fuel component in mixing bin, through material guiding ring connection weighing sensor to the fuel component in mixing bin carries out the weighing measurement, through driving motor drive shaft rotation, drives stirring vane rotation, through heat preservation bin delivery after the boiler fuel proportioning need furfural residue.

[0008] Further, the bottom of the mixing bin is centrally provided with a bottom opening, and the edge of the bottom of the mixing bin is fixedly connected with a leg in an annular array. The lower part of the receiving hopper passes through the bottom opening. When the mixing bin is working, the receiving hopper passes through the bottom opening, and the leg supports the mixing bin on the ground.

[0009] Further, the bottom of the receiving hopper extends beyond the bottom of the mixing bin, and the bottom of the receiving hopper is fixedly connected with a discharge pipe. After the electric control valve on the discharge pipe is opened, the mixed boiler fuel in the receiving hopper is discharged through the discharge pipe.

[0010] Further, the output end of the driving motor is fixedly connected with a rotating shaft that penetrates through the top of the mixing bin. The bottom end of the rotating shaft is arranged in the receiving hopper, and the lower part of the rotating shaft peripheral side is fixedly connected with stirring vanes in an annular array. The driving motor drives the rotating shaft to rotate, which drives the stirring vanes to stir and mix the fuel components received in the receiving hopper and the mixing bin.

[0011] Further, the top of the heat preservation bin is fixedly connected with an air suction pump and an input pipe. The input end of the air suction pump is in communication with the heat preservation bin, and the bottom end of the input pipe is in communication with the heat preservation bin. The air suction pump and the input pipe are arranged on the two sides of the motor assembly. When the heat preservation bin is working, the air suction pump sucks out the air in the heat preservation bin to maintain negative pressure and accelerate the evaporation of the moisture in the furfural residue.

[0012] Further, the output end of the heat preservation bin is fixedly connected with a dry material pipe, the bottom end of the dry material pipe is fixedly connected with the mixing bin, and the electric control valves are fixedly arranged on the periphery of the feeding pipe, the discharging pipe, the input pipe and the dry material pipe.

[0013] The utility model has the following beneficial effects:

[0014] The utility model discloses a boiler fuel proportioning device, which comprises a mixing bin, an input pipe, a discharging pipe and a heat preservation bin, the input pipe is fixedly connected with the mixing bin, the discharging pipe is fixedly connected with the mixing bin, and the heat preservation bin is fixedly connected with the mixing bin.

[0015] The utility model discloses a boiler fuel proportioning device, which comprises a mixing bin, an input pipe, a discharging pipe and a heat preservation bin, the input pipe is fixedly connected with the mixing bin, the discharging pipe is fixedly connected with the mixing bin, and the heat preservation bin is fixedly connected with the mixing bin. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will introduce the drawings needed for the embodiment description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for the ordinary skilled person in the art, other drawings can also be obtained according to these drawings without paying creative labor.

[0017] Figure 1 It is a kind of boiler fuel proportioning device part cut open after structure perspective drawing;

[0018] Figure 2 It is the structure perspective drawing of mixing bin;

[0019] Figure 3 is a perspective view of the receiving hopper structure;

[0020] Figure 4 is a perspective view of the driving motor structure;

[0021] Figure 5 is a perspective view of the heat-insulating material bin structure after being cut open;

[0022] Figure 6 is a perspective view of the complete structure of the boiler fuel proportioning device.

[0023] Reference signs:

[0024] 1, mixing bin; 101, feeding pipe; 102, electric control valve; 103, supporting leg; 104, bottom opening; 2, receiving hopper; 201, material guiding ring; 202, weighing sensor; 203, discharging pipe; 3, driving motor; 301, rotating shaft; 302, stirring blade; 4, heat-insulating material bin; 401, motor assembly; 402, stirring shaft; 403, helical blade; 404, sheath; 405, heating jacket; 406, air extraction pump; 407, input pipe; 408, dry material pipe. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application. DETAILED DESCRIPTION

[0026] Please refer to Figures 1-4The utility model discloses a boiler fuel proportioning device, including mixing bin 1, receiving hopper 2, drive motor 3 and heat preservation bin 4, the top of mixing bin 1 is annular array fixed communication has feed pipe 101, and the top of feed pipe 101 is communicated with the equipment of conveying different boiler fuel component respectively, when mixing bin 1 works, receives hopper 2 is accommodated in it, through receiving hopper 2, receives the different components of boiler fuel in feed pipe 101 into mixing bin 1, through feed pipe 101, the boiler fuel except furfural residue is transported into mixing bin 1, and the top of mixing bin 1 is provided with a heat preservation bin 4, and heat preservation bin 4 is set up between two adjacent feed pipe 101, through heat preservation bin 4, furfural residue is transported, the inner wall lower part of heat preservation bin 4 is fixed with the sheath 404, and the space between sheath 404 and heat preservation bin 4 is fixed with heating jacket 405, and heat preservation bin 4 and sheath 404 cooperate, and heating jacket 405 is closed in heat preservation bin 4 and does not directly contact with the furfural residue in heat preservation bin 4, and the top central of heat preservation bin 4 is fixed with motor assembly 401, and motor assembly 401 includes a motor and speed reducer, and the motor drives the speed reducer, and the speed reducer drives stirring shaft 402 rotation again, and the output of motor assembly 401 is fixed with the stirring shaft 402 through the top of heat preservation bin 4 and the lower part of stirring shaft 402 is arranged in sheath 404, and the peripheral side of stirring shaft 402 in heat preservation bin 4 is fixed with spiral blade 403, and when motor assembly 401 drives stirring shaft 402 rotation, drives spiral blade 403 rotation, through the rotation of spiral blade 403, drives the furfural residue in heat preservation bin 4 to rise, and turns over furfural residue, so that the furfural residue in heat preservation bin 4 is heated evenly by heating jacket 405, and moisture evaporates;

[0027] The top central of mixing bin 1 is fixed with drive motor 3, and the drive motor 3 drives the rotation of rotating shaft 301, and the lower part in mixing bin 1 is provided with receiving hopper 2, and various boiler fuel components entering mixing bin 1 are received through receiving hopper 2, and the top of receiving hopper 2 is fixed with guide ring 201, and the fuel is guided into receiving hopper 2 through guide ring 201, and guide ring 201 is movably connected in mixing bin 1, and the bottom end of guide ring 201 is fixed with weighing sensor 202 in annular array, and the bottom of weighing sensor 202 is fixed in the bottom of mixing bin 1, and guide ring 201 is supported on the bottom of mixing bin 1 through weighing sensor 202, and each fuel component entering mixing bin 1 is weighed through weighing sensor 202.

[0028] Specifically, the bottom central of mixing bin 1 is provided with bottom opening 104, and the edge of the bottom end of mixing bin 1 is fixed with supporting leg 103 in annular array, and the lower part of receiving hopper 2 passes through bottom opening 104, and mixing bin 1 provides the action that receiving hopper 2 passes through through bottom opening 104, and mixing bin 1 is supported on the ground through supporting leg 103.

[0029] Further, the bottom end of the receiving hopper 2 extends out of the bottom end of the mixing bin 1, and the bottom end of the receiving hopper 2 is fixedly connected with a discharging pipe 203, the bottom end of the discharging pipe 203 is connected with a device for receiving or conveying the mixed boiler fuel, and the mixed boiler fuel is discharged into the receiving or conveying device through the discharging pipe 203 after the electric control valve 102 at the top of the discharging pipe 203 is opened.

[0030] Further, the output end of the driving motor 3 is fixedly connected with a rotating shaft 301 which penetrates through the top end of the mixing bin 1, the bottom end of the rotating shaft 301 is arranged in the receiving hopper 2, and the lower part of the rotating shaft 301 is fixedly connected with a plurality of stirring blades 302 which are arranged in an annular array, the driving motor 3 drives the rotating shaft 301 to rotate the stirring blades 302, and the fuel in the mixing bin 1 and the receiving hopper 2 is mixed and stirred by the rotation of the stirring blades 302.

[0031] The operation process of the embodiment is as follows: when working, first, the component proportion and the amount of each fuel in the boiler are determined, then the electric control valves 102 on the feeding pipes 101 and the dry material pipes 408 are started one by one, at this time, the fuel is conveyed into the mixing bin 1 through the feeding pipes 101 or the dry material pipes 408, and is received by the receiving hopper 2 in the mixing bin 1, then the weight of each fuel component measured by the weighing sensor 202 is observed, when the weight of each fuel component in the mixing bin 1 reaches a suitable level, the electric control valve 102 on the corresponding feeding pipe 101 or dry material pipe 408 is closed, and the conveying of the next component is performed, when the content of each fuel component reaches a suitable level, the driving motor 3 is started, the driving motor 3 drives the rotating shaft 301 to rotate the stirring blades 302, the rotation of the stirring blades 302 drives the mixing of each component of the boiler fuel in the receiving hopper 2 and the mixing bin 1, after mixing, the electric control valve 102 on the discharging pipe 203 is opened, and the mixed boiler fuel in the receiving hopper 2 is output. Specific embodiment

[0032] Please refer to Figure 1 , 2 , 5, 6, on the basis of the first specific embodiment, the top end of the heat preservation bin 4 is fixedly connected with an air extraction pump 406 and an input pipe 407, the top end of the input pipe 407 is connected with a device for conveying the furfural residue, the input end of the air extraction pump 406 is connected with the heat preservation bin 4, the bottom end of the input pipe 407 is connected with the heat preservation bin 4, the air extraction pump 406 and the input pipe 407 are arranged on the two sides of the motor assembly 401, when the heat preservation bin 4 works, the air in the heat preservation bin 4 is extracted by the air extraction pump 406, so that a negative pressure environment is maintained in the heat preservation bin 4, the water evaporation of the furfural residue is accelerated by maintaining the negative pressure environment in the heat preservation bin 4, and the furfural residue is conveyed into the heat preservation bin 4 through the input pipe 407.

[0033] Specifically, the output end of the heat preservation bin 4 is fixedly communicated with a dry material pipe 408, the bottom end of the dry material pipe 408 is fixedly communicated with the mixing bin 1, and the electric control valves 102 are fixedly arranged on the circumferential sides of the feeding pipe 101, the discharging pipe 203, the input pipe 407 and the dry material pipe 408. When the heat preservation bin 4 works, the dry furfural residue in the heat preservation bin 4 is transported to the mixing bin 1 through the dry material pipe 408.

[0034] The operation process of the embodiment is as follows: when the furfural residue needs to be added in the fuel ratio of the boiler, the electric control valve 102 on the input pipe 407 is opened, the electric control valve 102 on the dry material pipe 408 is kept closed, the furfural residue is transported to the heat preservation bin 4, after the transportation is completed, the electric control valve 102 on the input pipe 407 is closed, the motor assembly 401 and the air suction pump 406 are started immediately, the motor assembly 401 drives the stirring shaft 402 to rotate, when the stirring shaft 402 rotates, the heating jacket 405 is started, the heat generated by the heating jacket 405 is transmitted to the furfural residue in the heat preservation bin 4 through the sheath 404, at the same time, the stirring shaft 402 drives the spiral blade 403 to rotate, the furfural residue in the heat preservation bin 4 is turned over, the moisture in the furfural residue is evaporated at the same time, the evaporated moisture is sucked out of the heat preservation bin 4 through the air suction pump 406, the water content of the furfural residue is reduced, the air suction pump 406 is closed after working for about 30 minutes, the electric control valve 102 on the dry material pipe 408 can be opened, the furfural residue is transported from the dry material pipe 408 to the mixing bin 1 through the continuous rotation of the spiral blade 403.

[0035] In the description of the present specification, the description referring to the terms "one embodiment", "an example", "a specific example" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are contained in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0036] The preferred embodiments of the present application disclosed above are only used to help explain the present application. The preferred embodiments do not describe all the details, nor limit the present application to the specific embodiments described. Obviously, according to the content of the present specification, many modifications and changes can be made. The present specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present application, so that the persons skilled in the art can well understand and utilize the present application. The present application is limited by the claims and the entire scope and equivalents thereof.

Claims

1. A boiler fuel proportioning device, comprising a mixing bin (1), a receiving hopper (2), a driving motor (3) and a heat-insulating bin (4), characterized in that: The top of the mixing bin (1) is fixedly connected with a feeding pipe (101) in annular array, an insulating bin (4) is arranged above the mixing bin (1), and the insulating bin (4) is arranged between two adjacent feeding pipes (101), a sheath (404) is fixed to the lower part of the inner wall of the insulating bin (4), a heating jacket (405) is fixed in the space between the sheath (404) and the insulating bin (4), a motor assembly (401) is fixed to the top center of the insulating bin (4), a stirring shaft (402) penetrating through the top of the insulating bin (4) is fixed to the output end of the motor assembly (401), and the lower part of the stirring shaft (402) is arranged in the sheath (404); and helical blades (403) are fixed to the circumferential side of the stirring shaft (402) in the insulating bin (4). The top center of the mixing bin (1) is fixedly connected with a driving motor (3), a receiving hopper (2) is arranged in the lower part of the mixing bin (1), a material guiding ring (201) is fixed to the top of the receiving hopper (2), the material guiding ring (201) is movably connected in the mixing bin (1), and a weighing sensor (202) is fixed to the bottom end of the material guiding ring (201) in annular array, and the bottom of the weighing sensor (202) is fixed to the bottom of the mixing bin (1).

2. A boiler fuel proportioning device according to claim 1, characterized in that: A bottom opening (104) is arranged in the bottom center of the mixing bin (1), and supporting legs (103) are fixed to the edge of the bottom end of the mixing bin (1) in annular array, and the lower part of the receiving hopper (2) penetrates through the bottom opening (104).

3. A boiler fuel proportioning device according to claim 1, characterized in that: The bottom end of the receiving hopper (2) extends out of the bottom end of the mixing bin (1), and a discharging pipe (203) is fixedly connected to the bottom end of the receiving hopper (2).

4. A boiler fuel proportioning device according to claim 3, wherein: The output end of the driving motor (3) is fixedly connected with a rotating shaft (301) penetrating through the top of the mixing bin (1), the bottom end of the rotating shaft (301) is arranged in the receiving hopper (2), and stirring blades (302) are fixed to the lower part of the circumferential side of the rotating shaft (301) in annular array.

5. A boiler fuel proportioning device according to claim 4, characterised in that: An air suction pump (406) and an input pipe (407) are fixed to the top of the insulating bin (4), the input end of the air suction pump (406) is connected with the insulating bin (4), the bottom end of the input pipe (407) is connected with the insulating bin (4), and the air suction pump (406) and the input pipe (407) are arranged on the two sides of the motor assembly (401).

6. A boiler fuel proportioning device according to claim 5, wherein: An output pipe (408) is fixedly connected to the output end of the insulating bin (4), the bottom end of the output pipe (408) is fixedly connected with the mixing bin (1), and electric control valves (102) are fixed to the circumferential sides of the feeding pipe (101), the discharging pipe (203), the input pipe (407) and the output pipe (408).

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