CN219809928U

CN219809928U - Bamboo chip boiler feeding device

Info

Publication number: CN219809928U
Application number: CN202321177095.5U
Authority: CN
Inventors: 肖巨明; 曾荣武; 张晓军
Original assignee: Sanming Branch Of Fujian Boiler And Pressure Vessel Inspection And Research Institute
Current assignee: Sanming Branch Of Fujian Boiler And Pressure Vessel Inspection And Research Institute
Priority date: 2023-05-16
Filing date: 2023-05-16
Publication date: 2023-10-10
Anticipated expiration: 2033-05-16

Abstract

The utility model discloses a bamboo chip boiler feeding device, which belongs to the field of boiler feeding, and comprises a furnace wall, wherein a feeding bin is arranged on one side of the furnace wall, a feeding hole is formed in the top end of the feeding bin, a fan is arranged on one side, far away from the furnace wall, of the feeding bin, the output end of the fan stretches into the inner side of the feeding bin, a variable frequency motor is arranged on one side, far away from the feeding bin, of the fan, a rotating roller is fixed on the output end of the variable frequency motor, one end, far away from the variable frequency motor, of the rotating roller is connected with the fan, the variable frequency motor is used for controlling the wind power of the fan, a conveying belt is arranged at the top end of the feeding hole, a feeding structure is arranged on the feeding bin, and a rotating mechanism is arranged on the output end of the variable frequency motor; the novel bamboo chip feeding device can send dry materials and wet materials into the furnace wall, so that fuel is saved, classification is not needed before feeding new and old bamboo chips and dry and wet bamboo chips, the novel and old bamboo chips and the dry and wet bamboo chips can be directly mixed and sent to a feed inlet, and labor cost and discharging space are further saved.

Description

Bamboo chip boiler feeding device

Technical Field

The utility model relates to the field of boiler feeding, in particular to a bamboo chip boiler feeding device.

Background

Bamboo scraps are renewable biomass fuel, have the characteristics of cleanness, low carbon, high efficiency and the like, and are widely applied to heat supply of industrial and civil boilers, however, the feeding mode of the bamboo scraps has great influence on the combustion efficiency and the safety of the boilers, and at present, the common feeding modes of the bamboo scraps boilers mainly comprise the following steps:

and (3) manual feeding: the mode is simplest, namely bamboo scraps are manually thrown into a hearth of a boiler, the mode has the advantages of simplicity and convenience in operation and low cost, but the mode is obvious in defects, namely uniform feeding cannot be achieved, the condition of incomplete combustion caused by insufficient fuel or fuel accumulation is easy to occur, the efficiency and the service life of the boiler are influenced, and meanwhile, the labor intensity and the potential safety hazard are increased;

wind power feeding: the mode is that bamboo scraps are blown into a hearth of a boiler through a fan, the mode has the advantages that automatic control can be achieved, manual intervention is reduced, but the mode is also remarkable in defects, namely the mode cannot adapt to the situation that the water content difference of the bamboo scraps is large, when the water content is large, because the bamboo scraps are heavy, wind power is insufficient to blow the bamboo scraps into the hearth, and the feeding is insufficient, so that the load and the stability of the boiler are affected;

lamellar feeding: the mode is characterized in that bamboo scraps are fed into a hearth of a boiler in a layered manner through a special feeding device, and a bamboo scraps layer is formed in the boiler for combustion, so that the mode has the advantages of realizing continuous feeding, improving the operation efficiency of the boiler, but not neglecting the defects, namely, difficulty in controlling the thickness and uniformity of a material layer, and often, a large amount of bamboo scraps are discharged along with a slag removal system when not burnt out due to the fact that the material layer is too thick, so that a large amount of fuel is wasted;

therefore, under the prior art level, a bamboo chip boiler feeding device capable of meeting various requirements of efficiency, energy conservation, safety, environmental protection and the like does not exist.

Disclosure of Invention

1. Technical problem to be solved

Aiming at the problems existing in the prior art, the utility model aims to provide the bamboo chip boiler feeding device which can send dry materials and wet materials into the furnace wall, so that fuel is saved, classification is not needed before new and old bamboo chips and dry and wet bamboo chips are fed, the new and old bamboo chips and the dry and wet bamboo chips can be directly mixed and sent to a feed inlet, and labor cost and discharge space are further saved.

2. Technical proposal

In order to solve the problems, the utility model adopts the following technical scheme.

The utility model provides a bamboo bits boiler feeder, includes the oven, the feeding storehouse is installed to one side of oven, the top of feeding storehouse is provided with the feed inlet, the feeding storehouse is kept away from one side of oven is installed the fan, just the output of fan stretches into to the inboard of feeding storehouse, the fan is kept away from one side of feeding storehouse is installed variable frequency motor, be fixed with a rotating roll on variable frequency motor's the output, just the rotating roll keep away from variable frequency motor's one end with the fan is connected, variable frequency motor is used for controlling the wind-force of fan, the top of feed inlet is provided with the conveyer belt;

the feeding bin is provided with a feeding structure, the output end of the variable frequency motor is provided with a rotating mechanism, and the rotating mechanism is used for driving the transmission belt and the variable frequency motor to rotate simultaneously.

Further, the feeding structure comprises a dry material feeding port, the dry material feeding port corresponds to the output end of the fan, the dry material feeding port stretches into the inner side of the furnace wall, a wet material feeding port is arranged at the bottom of the feeding bin, and the wet material feeding port also stretches into the inner side of the furnace wall.

Further, the rotating mechanism comprises a transmission shaft, the transmission shaft is arranged on the outer side of the rotating roller, the transmission shaft is arranged between the variable frequency motor and the fan, a speed reducer is arranged on one rotating shaft of the transmission belt, one side, away from the rotating shaft, of the speed reducer is also provided with a transmission shaft, and the two transmission shafts are connected through the transmission belt.

Further, the inside of the feeding bin is rotatably connected with a flashboard at the top of the dry material feeding port, a stepping motor is arranged at the outside of the feeding bin, and the output end of the stepping motor is connected with the flashboard and used for controlling the flashboard to rotate.

Further, a fixed rod is fixed on the inner wall of the feeding bin and located at the bottom of the flashboard, a sliding rod is connected to the outer side of the fixed rod in a sliding mode, a connecting sheet is fixed at one end of the sliding rod away from the fixed rod, and a spring is installed between the connecting sheet and the feeding bin and located at the outer side of the fixed rod and the outer side of the sliding rod.

Further, the fixing rod and the sliding rod are integrally arc-shaped, and the fixing rod is bent upwards by taking one end, far away from the sliding rod, of the fixing rod as a starting point.

3. Advantageous effects

Compared with the prior art, the utility model has the advantages that:

this scheme is bloied through the fan to the feeding storehouse inboard for the fan can blow in the inboard of oven through the drier pay-off mouth with comparatively dry bamboo bits, and moist heavier bamboo bits then get into the inboard of oven through wet material pay-off mouth, and then can send into drier and wet material, and the drier is at furnace suspension fuel, and wet material gets into the grate bottom, carries out suspension combustion after the stoving, and the burning is abundant, improves thermal efficiency, and then saves fuel, and makes new and old bamboo bits, no longer need classify before the wet bamboo bits feeding, can direct mixing send to feed inlet department, further saves labor cost and blowing space.

Drawings

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

FIG. 2 is a schematic diagram of the structure between the dry material feeding port, the wet material feeding port and the feeding port;

FIG. 3 is a schematic diagram of the structure of the utility drive shaft, the transmission belt and the variable frequency motor;

fig. 4 is an enlarged view of fig. 2 a.

The reference numerals in the figures illustrate:

1. a furnace wall; 2. a feeding bin; 3. a feed inlet; 4. a wet material feeding port; 5. a dry material feeding port; 6. a variable frequency motor; 7. a blower; 8. a transmission belt; 9. a transmission shaft; 10. a transmission belt; 11. a speed reducer; 12. a flashboard; 13. a fixed rod; 14. a slide bar; 15. a spring; 16. and a connecting sheet.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model; it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments, and that all other embodiments obtained by persons of ordinary skill in the art without making creative efforts based on the embodiments in the present utility model are within the protection scope of the present utility model.

Example 1:

referring to fig. 1-4, a bamboo chip boiler feeding device comprises a furnace wall 1, a feeding bin 2 is arranged on one side of the furnace wall 1, a feeding port 3 is arranged at the top end of the feeding bin 2, a fan 7 is arranged on one side of the feeding bin 2 far away from the furnace wall 1, the output end of the fan 7 stretches into the inner side of the feeding bin 2, a variable frequency motor 6 is arranged on one side of the fan 7 far away from the feeding bin 2, the variable frequency motor 6 is used as a feeding motor, the feeding speed is automatically adjusted according to the production requirement of an enterprise to control the running load of a boiler, a rotating roller is fixed at the output end of the variable frequency motor 6 for stabilizing the enterprise, one end of the rotating roller far away from the variable frequency motor 6 is connected with the fan 7, the variable frequency motor 6 is used for controlling the wind power of the fan 7, and a conveying belt 8 is arranged at the top end of the feeding port 3;

the feeding bin 2 is provided with a feeding structure, the output end of the variable frequency motor 6 is provided with a rotating mechanism, and the rotating mechanism is used for driving the transmission belt 8 and the variable frequency motor 6 to rotate simultaneously.

Referring to fig. 2, the feeding structure includes a dry material feeding port 5, the dry material feeding port 5 corresponds to the output end of a fan 7, the dry material feeding port 5 extends into the inner side of the furnace wall 1, a wet material feeding port 4 is arranged at the bottom of the feeding bin 2, the wet material feeding port 4 also extends into the inner side of the furnace wall 1, drier bamboo chips enter into the inner side of the furnace wall 1 through the dry material feeding port 5, and wet and heavy bamboo chips fall into the inner side of the wet material feeding port 4, enter into the inner side of the furnace wall 1 through the wet material feeding port 4, so that dry materials and wet materials can be fed, dry materials suspend fuel in a furnace hearth, wet materials enter into the bottom of the furnace grate, and suspension combustion is performed after drying, so that the combustion is sufficient, the heat efficiency is improved, and the fuel is saved;

the combustion state is changed from laminar combustion to suspension combustion, the combustion is sufficient, the heat efficiency is improved, the feeding device is used for feeding, the laminar combustion is changed into suspension combustion, a good combustion environment is created, the combustion is sufficient, the fuel is saved, the heat efficiency is improved, classification is not needed before new and old bamboo chips and dry and wet bamboo chips are fed, the new and old bamboo chips and the dry and wet bamboo chips can be directly mixed and fed to the position of the feed inlet 3, and labor cost and discharging space are further saved;

and the furnace does not need too many furnace doors, can be suitable for sealing the furnace, and prevent flame and fly ash from being sprayed out of the furnace doors when the boiler burns in positive pressure. The boiler has the advantages of reducing dust in a boiler room and avoiding fire, along with simple structure, easy implementation and improvement, and the existing layer combustion boiler can be improved and installed.

Referring to fig. 3, the rotating mechanism includes a driving shaft 9, the driving shaft 9 is mounted on the outer side of the rotating roller, the driving shaft 9 is disposed between the variable frequency motor 6 and the fan 7, a speed reducer 11 is mounted on one of the rotating shafts of the driving belt 8, one side of the speed reducer 11 away from the rotating shaft is also provided with a driving shaft 9, the two driving shafts 9 are connected through a driving belt 10, when the variable frequency motor 6 drives, one driving shaft 9 contacting with the rotating roller can be driven to rotate, and then the driving belt 10 can drive the other driving roller to rotate through the connection of the driving belt 10, and drives the rotating shaft to rotate, and the driving belt 8 is driven to rotate through the speed reduction of the speed reducer 11.

Referring to fig. 4, the inside of the feeding bin 2 and the top of the feeding port 5 for dry materials are rotatably connected with a gate plate 12, a stepping motor is mounted on the outside of the feeding bin 2, and the output end of the stepping motor is connected with the gate plate 12 for controlling the gate plate 12 to rotate.

Example 2:

this embodiment is based on the technical effects made in embodiment 1;

referring to fig. 4, a fixed rod 13 is fixed on the inner wall of the feeding bin 2 and is located at the bottom of the gate plate 12, a sliding rod 14 is slidably connected to the outer side of the fixed rod 13, one end of the sliding rod 14 away from the fixed rod 13 is fixed with a connecting sheet 16, the fixed rod 13 and the sliding rod 14 are integrally arc-shaped, and the end of the fixed rod 13 away from the sliding rod 14 is used as a starting point to bend upwards, through the arrangement, the effect of the gate plate 12 and the connecting sheet 16 in mutual contact is better, the effect of falling sundries on the gate plate 12 is faster, a spring 15 is installed between the connecting sheet 16 and the feeding bin 2 and located at the outer sides of the fixed rod 13 and the sliding rod 14, when the gate plate 12 needs to be cleaned, a stepping motor can be started, the output end of the stepping motor can rotate back and forth in a half circle, the gate plate 12 is enabled to touch the connecting sheet 16, the gate plate 12 is prevented from being damaged after being impacted by the arrangement of the fixed rod 13, the sliding rod 14 and the spring 15, and accordingly dust or bamboo dust on the gate plate 12 can be prevented from sliding down due to the arrangement, and bamboo dust or bamboo dust can be accumulated on the gate plate 12.

Working principle: when a user uses the device, the variable frequency motor 6 is started, the rotating roller is driven by the output end of the variable frequency motor 6, one transmission shaft 9 in contact with the rotating roller is driven to rotate, the transmission belt 10 can drive the other driving roller to rotate and drive the rotating shaft to rotate through the connection of the transmission belt 10, the transmission belt 8 is driven to rotate through the speed reduction of the speed reducer 11, bamboo scraps are added to the transmission belt 8, the bamboo scraps are moved to the position of the feeding hole 3 on the feeding bin 2 through the transmission belt 8, and the bamboo scraps are added to the inner side of the feeding bin 2 through the feeding hole 3;

when variable frequency motor 6 drives, can drive fan 7 start, and then blow to feeding storehouse 2 inboard through fan 7 for add to the inboard drier bamboo bits of feeding storehouse 2 through fan 7's setting of blowing, it gets into the inboard to oven 1 through drier pay-off mouth 5, and moist heavier bamboo bits then fall into the inboard of wet material pay-off mouth 4, get into the inboard to oven 1 through wet material pay-off mouth 4.

The above description is only of the preferred embodiments of the present utility model; the scope of the utility model is not limited in this respect. Any person skilled in the art, within the technical scope of the present disclosure, may apply to the present utility model, and the technical solution and the improvement thereof are all covered by the protection scope of the present utility model.

Claims

1. Bamboo chip boiler feed device, including oven (1), its characterized in that: a feeding bin (2) is arranged on one side of the furnace wall (1), a feeding port (3) is arranged at the top end of the feeding bin (2), a fan (7) is arranged on one side, far away from the furnace wall (1), of the feeding bin (2), the output end of the fan (7) stretches into the inner side of the feeding bin (2), a variable frequency motor (6) is arranged on one side, far away from the feeding bin (2), of the fan (7), a rotating roller is fixed on the output end of the variable frequency motor (6), one end, far away from the variable frequency motor (6), of the rotating roller is connected with the fan (7), the variable frequency motor (6) is used for controlling wind power of the fan (7), and a conveying belt (8) is arranged at the top end of the feeding port (3);

the feeding bin (2) is provided with a feeding structure, the output end of the variable frequency motor (6) is provided with a rotating mechanism, and the rotating mechanism is used for driving the conveying belt (8) and the variable frequency motor (6) to rotate simultaneously.

2. A bamboo chip boiler feed apparatus as claimed in claim 1, characterized in that: the feeding structure comprises a dry material feeding port (5), the dry material feeding port (5) corresponds to the output end of the fan (7), the dry material feeding port (5) stretches into the inner side of the furnace wall (1), a wet material feeding port (4) is arranged at the bottom of the feeding bin (2), and the wet material feeding port (4) also stretches into the inner side of the furnace wall (1).

3. A bamboo chip boiler feed apparatus as claimed in claim 2, characterized in that: the rotating mechanism comprises a transmission shaft (9), the transmission shaft (9) is arranged on the outer side of the rotating roller, the transmission shaft (9) is arranged between the variable frequency motor (6) and the fan (7), a speed reducer (11) is arranged on one rotating shaft of the transmission belt (8), one side, away from the rotating shaft, of the speed reducer (11) is also provided with the transmission shaft (9), and the two transmission shafts (9) are connected through a transmission belt (10).

4. A bamboo chip boiler feed apparatus as claimed in claim 2, characterized in that: the inside of feeding storehouse (2) just is located the top rotation of drier pay-off mouth (5) is connected with flashboard (12), just a step motor is installed in the outside of feeding storehouse (2), just step motor's output with flashboard (12) are connected, are used for control flashboard (12) rotate.

5. The bamboo chip boiler feed apparatus of claim 4, wherein: the feeding bin is characterized in that a fixed rod (13) is fixed on the inner wall of the feeding bin (2) and located at the bottom of the flashboard (12), a sliding rod (14) is connected to the outer side of the fixed rod (13) in a sliding mode, a connecting sheet (16) is fixed at one end, away from the fixed rod (13), of the sliding rod (14), and a spring (15) is arranged between the connecting sheet (16) and the feeding bin (2) and located on the outer side of the fixed rod (13) and the sliding rod (14).

6. A bamboo chip boiler feed apparatus as claimed in claim 5, characterized in that: the whole of the fixed rod (13) and the sliding rod (14) is arc-shaped, and the fixed rod (13) is bent upwards by taking one end far away from the sliding rod (14) as a starting point.