CN201322315Y

CN201322315Y - Conveying device for feeding biological fuel to boiler

Info

Publication number: CN201322315Y
Application number: CNU2008201728073U
Authority: CN
Inventors: 王朝晨
Original assignee: Shandong gaotang thermal power plant
Current assignee: Shandong gaotang thermal power plant
Priority date: 2008-10-07
Filing date: 2008-10-07
Publication date: 2009-10-07
Anticipated expiration: 2018-10-07

Abstract

A conveying device for feeding biological fuel to boiler belongs to the technical field of devices for conveying fuels. At present, stalks burned by an electric power plant or a thermal power plant need to do the manufacturing procedures of disintegrating, granulating, briquetting or making gas and the like, and the manufacturing procedures are complex, and energy source consumption and environmental pollution are increased when in processing. The technical proposal of the utility model is that a speed-regulating material propeller (1) is mounted on four walls or the upper wall and the lower wall of a tubular material channel (2) according to concrete requirements, and four walls of the channel (2) are respectively provided with fire-extinguishing quenching heads (3), the middle segment of the channel (2) is provided with an automatic valve (4), a near-furnace wall (6) is provided with a water cooling sleeve (7), and an air sealing hole (8) is mounted on two sides of the water cooling sleeve (7). The conveying device for feeding biological fuel to boiler has the advantages of reasonable structure design, and biomasses (stalks and the like) are directly fed into a hearth to burn without being processed by the conveying device. The conveying device for feeding biological fuel to boiler omits the manufacturing procedures of disintegrating, granulating, briquetting or making gas and the like, saves energy sources, and eliminates environmental pollution when in processing.

Description

A kind of conveying device of feeding biomass fuel to boiler

Technical field:

The utility model relates to transfer the fuel device technique field, is a kind of conveying device of feeding biomass fuel to boiler more specifically.

Background technology:

Manufacturing procedures such as the stalk of generation current factory or steam power plant burning will be pulverized, granulation, briquetting or gas making, complex procedures, adding has increased energy resource consumption and environmental pollution man-hour, thereby living beings are improved a lot as the cost of raw material, reduce the performance of enterprises, influenced universal enforcement.

Summary of the invention:

For overcoming above-mentioned shortcoming, the purpose of this utility model is a kind of conveying device of feeding biomass fuel to boiler of design.Its technical scheme is: speed governing material propeller is that dentation or chain type are installed in tube-shaped material passage wall or two wall places up and down, tube-shaped material passage wall is respectively arranged with the fire extinguishing fountain head, middle section at the tube-shaped material passage is provided with self-shooter, nearly furnace wall place is provided with water collar, and wind seals on the both sides that are installed in water collar.The advantage of this utility model is: reasonable in design, the novelty that is skillfully constructed, this drawing-in device be with living beings (stalk etc.) without processing, directly send into burner hearth burning.Save manufacturing procedures such as existing pulverizing, granulation, briquetting, gas making, saved the energy, got rid of the environmental pollution that adds man-hour.If simply tied up at the purchase scene, dwindle volume of material, be more convenient for having reduced freight than long-distance transportation, greatly reduce the cost that living beings act as a fuel.

Description of drawings:

This accompanying drawing is the utility model structural representation.In the accompanying drawing: 1, speed governing material propeller, 2, the tube-shaped material passage, 3, the fire extinguishing fountain head, 4, self-shooter, 5, material detector, 6, furnace wall, 7, water collar, 8, wind seals.

The specific embodiment:

Speed governing material propeller 1 is installed in tube-shaped material passage 2 walls according to real needs or up and down on two walls, on passage 2 walls, be respectively arranged with fire extinguishing fountain head 3, be provided with self-shooter 4 in the middle section of passage 2, nearly furnace wall 6 is provided with water collar 7, and wind seals 8 and is installed on the both sides of water collar 7.Material is delivered to this device feeder connection, through the materials amount adjustment suitable delivery rate of multistep speed regulation material propeller 1 according to boiler load, material is pushed ahead continuously, through fire extinguishing fountain head 3, material detector 5 (electric contact was opened and do not signaled when material was arranged), self-shooter 4 (just often being opening), water collar 7 and wind seal 8 (just often to be stopped owing to material, it is very little that wind seals air quantity, mainly be to blow part cold wind to material and burner hearth this moment, cool off material and stop flame anti-fire in material channel) enter the burner hearth burning, wind is supplied with by boiler wind.

The effect of each several part:

1. multistep speed regulation material propeller 1 is located at material channel wall or two walls up and down, the material channel 2 that the wall material baffle forms tubular is in order to send material to burner hearth continuously, reliably according to boiler load, if what buy is very loose material, when loosing the shape cotton stalk, bell mouth shape will be made in the porch, so that the preliminary compression of bulk cargo is advanced again.

2. when certain reason causes that material catches fire in the passage, self-shooter 4 cuts out, cut off the burner hearth burning things which may cause a fire disaster, send signal simultaneously and make fire extinguishing fountain head 3 open water spray whole passage is put out a fire according to instruction.

3. when certain reason fracture, material detector 5 measures when not having material, sends signal to self-shooter 4 and makes it close material channel, prevents the furnace flame leading portion material that ignites.

4. be to absorb the heat radiation of furnace flame from 8 the effect one of sealing of the nearest water collar 7 of burning things which may cause a fire disaster (burner hearth) and wind, make material be lower than burning-point material, and not in the passage internal combustion.The 2nd, when burner hearth malleation or passage do not have material, seal 8 closed furnace flames and scurry into passage by wind.

5. prevent that material from catching fire when when outage fire extinguishing fountain head 3 auto-actions water spray, close automatically by deadweight during the material after-flame after self-shooter 4 dead electricity and cut off the burner hearth burning things which may cause a fire disaster.

Claims

1, a kind of conveying device of feeding biomass fuel to boiler, it is characterized in that: speed governing material propeller (1) is installed in tube-shaped material passage (2) wall or up and down on two walls, on passage (2) wall, be respectively arranged with fire extinguishing fountain head (3), be provided with self-shooter (4) in the middle section of passage (2), nearly furnace wall (6) is provided with water collar (7), and wind seals (8) and is installed on the both sides of water collar (7).