CN200946817Y

CN200946817Y - High-efficiency energy-saving coal burner for smoke and dust removal

Info

Publication number: CN200946817Y
Application number: CN200620087516.5U
Authority: CN
Inventors: 王开生
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-08-03
Filing date: 2006-08-03
Publication date: 2007-09-12
Anticipated expiration: 2016-08-03

Abstract

The utility model provides a smoke-free, anti-dust and energy saving coal furnace with high efficiency and comprises a shell and an air intaking device with the upper part of the shell provided with fire outlet and the lower part a coal feeding mouth and a deslagging mouth, a vertical coal supplying device that is mounted at the bottom of the shell; wherein, the air intaking device comprises the first air intaking pipe which is mounted at the lower part of the shell and the second air intaking pipe that is mounted at the middle part of the furnace. The second air intaking pipe is at least one layer along the altitude direction of the shell with each layer air intaking pipe connected with three air intaking heads that are distributed along the periphery of the shell. The utility model combines the methods of bottom-up supplying coal with vertical and horizontal coal feeding to realize lamella coal supplying. Furthermore, the air intaking device can realize joint air intaking of multi-layer, multi-aspect and multi-angle. The organic combination of the coal supplying unit and the air intaking unit can realize full combustion of fuel, dedusting, environment-friendly and high efficiency.

Description

Smoke prevention and dust control high efficiency energy saving coal burner

Affiliated technical field

The utility model relates to coal-fired apparatus, belongs to the coal-burning device technical field.

Background technology

Various coal-burning boiler and kiln etc. all need coal-burning device, and the coal-burning device that uses generally includes the system of delivering coal and air inlet system at present.The system that delivers coal sends into coal in the coal-burning device, generally taked the application of wind and twice wind technically for the phoenix system, change has in various degree been arranged on combustion position, but because in air-supply, on the mode of delivering coal and the chamber structure not to air intake, the control of advancing coal fundamentally realizes breakthrough variation, thereby cause the burning that fire coal can not be cmpletely, the blackness of exhaustion and the smoke dust discharge concentration that produce exceed national environmental standard, cause great energy waste and environmental pollution, thereby make that country has to forcibly close, the restriction coal-burning boiler, the use of kiln.

Summary of the invention

The utility model is at the boiler, the kiln gas blackness that have coal now and smoke dust discharge concentration exceeds standard, problem of environment pollution caused, and a kind of smoke prevention and dust control high efficiency energy saving coal burner is provided.

Smoke prevention and dust control high efficiency energy saving coal burner of the present utility model comprises housing and air-intake device, and housing top is provided with crater, and the bottom is provided with coal feed point and removes cinder notch; Also comprise the vertical feeding system that is installed in housing bottom; Air-intake device comprises a blast pipe that is arranged on lower housing portion and the secondary wind inleting tube that is arranged on housing top, and secondary wind inleting tube is provided with one deck at least along the housing short transverse, is connected with three air intake heads along the housing circumferential distribution on every layer of blast pipe at least.

Housing coal feed point place is equipped with laterally defeated device for coal, and this defeated device for coal can adopt conveying worm.

Vertical feeding system is made up of last coal push-plate, dwang and drive link, and last coal push-plate is installed on the dwang, and dwang is connected by bevel-gear sett with drive link.

The air intake direction of air intake head is on the elevation direction of housing, and the angle of casing elevation be 25 spend to 175 the degree between, promptly the air intake of each air intake head be directed upwardly, down or straight horizontal blow.

The air intake direction of air intake head also can be on the horizontal plane, tilts 0 to spend to 70 degree with respect to the middle mind-set inner walls towards housing, and promptly the air intake direction of each air intake head is towards the internal face of housing, rather than the center of housing.

The structure of delivering coal of the present utility model has adopted to deliver coal from the bottom up advances the mode that coal facies combine with level with vertical, can accomplish that thin layer delivers coal; Air inlet structure makes associating air intake multi-level, multi-faceted in the burner hearth, multi-angle simultaneously.The combination of the structure of delivering coal and air inlet structure, the combustible of coal in the burner hearth is fully burned, fundamentally solved the problem that blackness of exhaustion and smoke dust discharge concentration exceed standard, reach and be better than the standard of national requirements for environmental protection fully, realized smoke abatement and dust control, environmental protection and energy saving, high-quality and efficient purpose.

Description of drawings:

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is along the cutaway view of A-A line among Fig. 1.

Fig. 3 is the structural representation of the another kind of enterprising public attention of blast pipe in the utility model towards form.

Among the figure: 1, housing, 2, crater, 3, the upper strata blast pipe, 4, the middle level blast pipe, 5, lower floor's blast pipe, 6, remove cinder notch, 7, airduct, 8, blower fan, 9, go up the coal push-plate, 10, motor, 11, decelerator, 12, clutch, 13, screw propulsion rod, 14, coal hopper, 15, blast pipe, 16, dwang, 17, drive link, 18, the air intake head, 19, coal feed point.

The specific embodiment:

Embodiment 1

As shown in Figure 1, smoke prevention and dust control high efficiency energy saving coal burner of the present utility model mainly comprises housing 1, laterally defeated device for coal, vertical feeding system and air-intake device.Housing 1 is provided with crater 2 and removes cinder notch 6, and crater 2 is arranged in the upper furnace of housing 1, removes the place, upper strata that cinder notch 6 is arranged on housing 1 lower combustion chamber coal seam.The hemispherical of the top of housing 1 for upwards swelling.Laterally defeated device for coal is a conveying worm, is installed in coal feed point 19 places of housing 1 bottom, and screw propulsion rod 13 is housed in its shell, and shell upper is provided with coal hopper 14.Coal in the coal hopper 14 pushes bottom in the housing 1 by the rotation of screw propulsion rod 13.Drive by the band transmission again after screw propulsion rod 13 is slowed down by decelerator 11 by motor 10 and rotate.Vertical feeding system is installed in the bottom of housing 1, is made up of last coal push-plate 9, dwang 16 and drive link 17, and last coal push-plate 9 is installed on the dwang 16, and dwang 16 and drive link 17 are connected by bevel-gear sett.Drive link 17 is connected with the output shaft of decelerator 11 by clutch 12.Last coal push-plate 9 rotates under the drive of dwang 16, presses the required coal amount of burner hearth burning, is stirring coal and is upwards at the uniform velocity stirring slowly, makes the coal combustion on upper strata and shifts the cinder of after-flame onto outer edge.Cinder can be by removing cinder notch 6 periodic cleanings.

The air-intake device of present embodiment comprises blast pipe 15 of housing 1 lower combustion chamber and the multilayer secondary wind inleting tube that the upper strata blast pipe 3 in the upper furnace, middle level blast pipe 4, lower floor's blast pipe 5 are formed.The blast pipe number of plies in housing 1 upper furnace has one deck at least according to its height size, divides to be located at the lower combustion chamber coal seam and to go up to the housing 1 below the end face on 5 centimetres the height for above 10 centimetres.One time blast pipe 15 is connected with the air outlet of blower fan 8, and the upper, middle and lower-ranking blast pipe all is connected by the air outlet of airduct 7 with blower fan 8, and each blast pipe is by blower fan 8 air feeds.Referring to Fig. 2, be connected with three air intake heads 18 that distribute along the housing horizontal perimeter on every layer of blast pipe at least, make each air intake head on different azimuth with one deck.Present embodiment is provided with 6 air intake heads in the blast pipe at the middle and upper levels, is provided with 8 air intake heads in middle level and the lower floor's blast pipe.The air intake direction of each air intake head is on the elevation direction of housing, and the included angle B of the wall vertical direction of housing 1 is 25 to spend to (as shown in Figure 1) between 175 degree, i.e. air intake head or air intake up, or air intake down, or horizontal air intake.

Air-intake device of the present utility model forms multi-level, multi-faceted, scientific and reasonable air swirl in housing 1, can fully mix with coal-fired top layer and fuel gas, guaranteed that various escaping gas compositions can fully burn, and had the sufficient time of staying to allow fuel in the combustion chamber, fully burn.At the technical elements of delivering coal, changed traditional mode from top coal, adopted from bottom to top, level and the vertical compound structure of delivering coal, can realize delivering coal with the thin layer that intermittently combines continuously, also guaranteed the abundant burning of coal.The amount of delivering coal, air output size all can be regulated by corresponding mechanism, to adapt to the requirement of different furnace temperature.

Embodiment 2

The air intake that the difference of present embodiment and embodiment 1 is every layer of enterprising public attention 18 of blast pipe towards.Referring to Fig. 3, the air intake direction of each air intake head is on the horizontal plane in the present embodiment, with respect to towards being 0 to spend to (as shown in Figure 3) between 70 degree to the angle C that inner walls tilts for the center of housing, promptly the air intake head is the wall air intake of horizontal direction towards housing 1.All the other structures are all identical with embodiment 1.

Claims

1. A high-efficiency energy-saving coal burner for smoke and dust removal, including a shell and an air inlet device. The upper part of the shell is provided with a fire outlet, and the lower part is provided with a coal inlet and a slag removal port; The vertical coal feeding device at the bottom; the air inlet device includes a primary air inlet pipe arranged at the lower part of the casing and a secondary air inlet pipe arranged at the upper part of the casing. The secondary air inlet pipe is provided with at least one layer along the height direction of the casing. Each layer of the air inlet pipe is connected with at least three air inlet heads distributed along the periphery of the casing.

2. The smoke and dust removal high-efficiency energy-saving coal burner according to claim 1, characterized in that: a horizontal coal conveying device is installed at the coal inlet of the housing.

3. The smoke and dust removal high-efficiency energy-saving coal burner according to claim 1, characterized in that: the vertical coal feeding device is composed of a coal loading push plate, a rotating rod and a transmission rod, and the coal feeding push plate is installed on the rotating rod On, the rotating rod and the transmission rod are connected by a pair of bevel gears.

4. The smoke and dust removal high-efficiency energy-saving coal burner according to claim 1, characterized in that: the air inlet direction of the air inlet head is in the height direction of the facade of the shell, and the included angle with the facade of the shell is 25° degrees to 175 degrees.

5. The smoke and dust removal high-efficiency energy-saving coal burner according to claim 1, characterized in that: the air inlet direction of the air inlet head is on the horizontal plane, and is inclined from 0 degrees to 70 degrees to the inner wall of the housing relative to the center of the housing. Spend.