阅读说明：本技术 一种用于生物质燃料的制粉燃烧一体化装置 (A powder process burning integrated device for biomass fuel ) 是由 杨潇 于 2019-10-24 设计创作，主要内容包括：本发明属于颗粒生物质燃烧设备领域,具体涉及一种用于生物质燃料的制粉燃烧一体化装置,旋风分离器出料口与储粉仓入口连接,储粉仓出口与给料机入口相连,锅炉鼓风机出口与燃烧喷嘴入口相通,其特征为,所述旋风分离器出风口与锅炉鼓风机进风管道相通,所述给料机出口与锅炉鼓风机进风管道相通,给料机的出口设有供料电磁阀,制粉机、锅炉鼓风机、供料电磁阀分别与控制器连接,所述旋风分离器出风口和锅炉鼓风机进风管道入口分别设有闸板阀。本发明制粉的高压引风机与锅炉鼓风机合并为一台风机,既作制粉系统的引风机又作锅炉的鼓风机,取消二级除尘器,从而减少了引风阻力,节约了电力,有利于降低设备购置成本,提高设备的使用率。(The invention belongs to the field of particle biomass combustion equipment, and particularly relates to a powder making and combustion integrated device for biomass fuel. The high-pressure draught fan for pulverizing the coal and the boiler blower are combined into one fan, which is used as both the draught fan of the pulverizing system and the boiler blower, and a secondary dust remover is omitted, so that the draught resistance is reduced, the electric power is saved, the purchase cost of equipment is reduced, and the utilization rate of the equipment is improved.)

1. The utility model provides a powder process burning integrated device for biomass fuel, includes controller, cornmill, cyclone, boiler air-blower, stores up powder storehouse, batcher, burning nozzle, cornmill export and cyclone entry linkage, cyclone discharge gate and store up powder storehouse entry linkage, store up powder storehouse export and link to each other with the batcher entry, boiler air-blower export and burning nozzle entry communicate with each other, characterized in that, cyclone air outlet and boiler air-blower inlet line communicate with each other, the batcher export communicates with each other with boiler air-blower inlet line, and the export of batcher is equipped with the feed solenoid valve, and cornmill, boiler air-blower, feed solenoid valve are connected with the controller respectively, cyclone air outlet and boiler air-blower inlet line entry are equipped with the flashboard valve respectively.

2. A pulverized-combustion integrated apparatus for biomass fuel as claimed in claim 1, further comprising a flame detector connected to the controller, said flame detector being disposed in the air-fuel mixing pipe between the boiler blower and the combustion nozzle.

3. A pulverizing and burning integrated device for biomass fuel as claimed in claim 1, wherein said boiler blower is explosion-proof and anti-static blower.

4. A pulverized-fuel combustion integrated apparatus for biomass fuel as claimed in claim 1, wherein said storage bin is provided with a flame detector and an automatic fire extinguisher connected with a controller.

5. A pulverizing and burning integrated device for biomass fuel as claimed in claim 1, wherein said controller is a PLC controller.

6. A pulverizing and burning integrated device for biomass fuel as claimed in claim 1, wherein said burning nozzle is a venturi tube.

Technical Field

The invention belongs to the field of particle biomass combustion equipment, and particularly relates to a powder-making and combustion integrated device for biomass fuel.

Background

The existing powder-making system of biomass fuel bulk is generally arranged in a special chemical plant together with a drying and granulating system, a combustion system is another set of device, the powder-making system and the combustion system are not mutually coherent, referring to fig. 2, the powder-making system extracts powder meeting the particle size requirement from a powder-making machine 1 by using a high-pressure fan 51, the material and air are separated by a primary cyclone separator 2, 3 ~ 5% of fine powder is remained in the air at the outlet of the primary cyclone separator, in order to avoid environmental pollution, a secondary dust remover 21 (generally in a cloth bag type) is also required to be arranged to recover the residual fine powder from the discharged material, the secondary dust removal needs to additionally consume electric power, when a biomass powder finished product is combusted, an air-material mixture formed by the powder and an air suction pipeline by a blower is required to be input into a combustion nozzle, and two fan devices and a dust removing device are used in.

Disclosure of Invention

The invention aims to provide a biomass fuel pulverizing and combustion integrated device so as to achieve the effects of improving the use efficiency of equipment and reducing energy consumption.

The technical scheme for realizing the aim of the invention is that,

the utility model provides a powder process burning integrated device for biomass fuel, includes controller, cornmill, cyclone, boiler air-blower, stores up powder storehouse, batcher, burning nozzle, cornmill, export and cyclone entry linkage, cyclone discharge gate and store up powder storehouse entry linkage, store up powder storehouse export and link to each other with the batcher entry, boiler air-blower export communicates with each other with burning nozzle entry, cyclone air outlet and boiler air-blower intake stack communicate with each other, the batcher export communicates with each other with boiler air-blower intake stack, and the export of batcher is equipped with the feed solenoid valve, and cornmill, boiler air-blower, feed solenoid valve are connected with the controller respectively, cyclone air outlet and boiler air-blower intake stack entry are equipped with the flashboard valve respectively.

Further, the device also comprises a flame detector connected with the controller, and the flame detector is arranged in an air-material mixing pipe between the boiler blower and the combustion nozzle.

Further, the boiler blower is an explosion-proof and anti-static blower.

Further, the powder storage bin is provided with a flame detector and an automatic fire extinguisher which are connected with the controller.

Further, the combustion nozzle is a venturi tube.

Further, the controller is a PLC controller.

When the device works, biomass is crushed in the powder making machine, biomass particles with the size meeting the requirements are sucked into the cyclone separator by the boiler blower, most biomass fuel is obtained from the powder storage bin through the discharge hole of the cyclone separator, residual fine powder is sucked into the air inlet pipeline of the boiler blower along with air from the air outlet of the cyclone separator, the powder storage bin conveys the biomass fuel finished product into the air inlet pipeline of the boiler blower through the feeding machine, and an air-material mixture formed by the air inlet pipeline of the boiler blower is conveyed to the combustion nozzle by the boiler blower. When the storage quantity of the finished biomass fuel products in the powder storage bin meets the demand, the gate valves at the air outlets of the pulverizer and the cyclone separator can be closed.

The high-pressure induced draft fan and the boiler blower of the original relatively independent pulverizing system are combined into one fan which is used as both the induced draft fan and the boiler blower of the pulverizing system, the air with fine powder left at the outlet of the primary cyclone separator is directly fed into the boiler for combustion, and the secondary dust remover is omitted, so that the induced draft resistance is reduced, the electric power is saved, the purchase cost of equipment is reduced, and the utilization rate of the equipment is improved; the controller receives the information of the flame detector, so that the fuel supply can be cut off in time when the air material pipe is tempered, and the safe operation of the system is ensured; the gate valve is arranged at the inlet of the air inlet pipeline of the boiler blower, so that the balance of air quantity and air pressure in the pipeline of the system can be adjusted; in order to solve the problem that the air-material mixture can generate static spark to cause combustion under the mechanical friction of an impeller of an air blower, the invention selects an anti-explosion and anti-static air blower for air supply.

Drawings

FIG. 1 is a schematic diagram of the operation of an embodiment of the present invention;

fig. 2 is a schematic diagram of a biomass fuel pulverizing device in the prior art.

In the figure, 1, a flour mill; 2. a cyclone separator; 21. a secondary dust remover; 3. a powder storage bin; 4. a feeder; 41. a feeding electromagnetic valve; 5. a boiler blower; 51. a fan; 6. a combustion nozzle; 7. a controller; 8. a flame detector; 9. a gate valve.

In the figure, solid arrows indicate biofuel transport paths, and open arrows indicate air-fuel mixture transport paths.

Detailed Description

The present invention will be described in detail with reference to examples.

Referring to fig. 1, a pulverizing and burning integrated device for biomass fuel comprises a controller 7, a pulverizer 1, a cyclone separator 2, a boiler blower 5, a powder storage bin 3, a feeder 4 and a burning nozzle 6, wherein an outlet of the pulverizer 1 is connected with an inlet of the cyclone separator 2, a discharge port of the cyclone separator 2 is connected with an inlet of the powder storage bin 3, an outlet of the powder storage bin 3 is connected with an inlet of the feeder 4, an outlet of the boiler blower 5 is communicated with an inlet of the burning nozzle 6, an air outlet of the cyclone separator 2 is communicated with an air inlet pipeline of the boiler blower 5, the suction force of the boiler blower 5 is utilized to directly convey residual biomass dust in tail gas of the cyclone separator 2 to a burning system for burning, a secondary dust removing device is omitted, an outlet of the feeder 4 is communicated with an air inlet pipeline of the boiler blower 5, and an outlet of the feeder 4 is provided with a feeding electromagnetic valve 41, the pulverizer 1, the boiler blower 5 and the feeding electromagnetic valve 41 are respectively and electrically connected with the controller 7, the air outlet of the cyclone separator 2 and the inlet of the air inlet pipeline of the boiler blower 5 are respectively provided with a gate valve 9, and the gate valve 9 is provided with a valve which is beneficial to adjusting the air quantity and the air pressure balance in the pipeline of the combustion system;

a flame detector 8 electrically connected with the controller 7 is arranged in the air-material mixing pipe between the boiler blower 5 and the combustion nozzle 6, the flame detector 8 has the effect that once the combustion nozzle 6 is tempered, the flame detector 8 transmits a tempering signal to the controller 7, the controller 7 can immediately cut off the feeding electromagnetic valve 41 and the boiler blower, and the tempering is effectively prevented from spreading to a previous-stage pipeline;

the boiler blower 5 is an explosion-proof and anti-static blower and can solve the problem that the air-material mixture generates static sparks to cause combustion under the mechanical friction of a blower impeller;

the combustion nozzle 6 is a venturi tube which is a pipeline which is contracted and then gradually expanded, and the venturi tube can improve the conveying speed of the air-material mixture so as to improve the combustion efficiency;

the powder storage bin 3 is provided with a flame detector and an automatic fire extinguisher which are electrically connected with the controller 7, so that the problem of spontaneous combustion of fuel powder particles in the powder storage bin 3 under a high-temperature condition can be effectively solved;

the controller 7 of the present embodiment is a PLC controller, and can automatically control the operation of the entire system and the operation of safety maintenance.