CN101187469A

CN101187469A - Raw coal boiler smokeless stove

Info

Publication number: CN101187469A
Application number: CNA200710085902XA
Authority: CN
Inventors: 魏银先
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-03-01
Filing date: 2007-03-01
Publication date: 2008-05-28

Abstract

The invention relates to a hearth for a coal-fired boiler. A traditional hearth has three problems that the temperature of coal seam face is too low to reach the ignition point to volatilize matter, distribution gas amount can not be controlled, and gas mixture is not even, and the problems can lead to unfinished burning and serious pollution. As the high-speed development of urban and rural construction and the enormous increase of operational quantity, the hearth needs to be improved from the benefits of the country and the people. The invention adds a distributing valve (3) on the fire outlet, which creates distributing condition. The fire outlet is depressed to force smoke to contact with high temperature, thereby creating high temperature oxidizing condition. A strengthening chamber (3) having mixing gas function and belonging to high temperature area is further arranged in the invention, which strengthens intensified reaction, and achieves the purpose of high quality burning. The invention can enormously increase burning quality when matched with an atmosphere tester, and can be used by series connection, which is suitable to be used in a vertical coal-fired boiler.

Description

The smoke-free range of raw coal boiler

The present invention relates to a kind of raw coal boiler, particularly the kitchen range of raw coal boiler

The combustion system of traditional structure kitchen range is tonifying Qi under the kitchen range, and coal seam high temperature rises and does work, and lights additional virgin material simultaneously and keeps burning.There are three problems like this, 1, the coal bed temperature is low, volatile matter does not reach burning-point.2, uncontrollable distribution amount.3, interior in short-term air and combustible gas mix inequality, cause the combustion heterodyne, wave energy, the tight consequence of dirt.Although country limited production, the high speed construction in town and country mutually should ten thousand times of risings of stove, the national conditions present situation is improved necessary

The object of the invention provides a kind of a kind of burning kitchen range with the adjustable airway dysfunction of secondary and second-time burning smoke-less power-saving, and normal combustion is smokeless.

The present invention realizes like this, the place ahead of kitchen range is provided with the kitchen range door, the left and right sides is the refractory brick barricade in the kitchen range chamber, top is refractory brick bow cave, kitchen range is fire bars down, high back is low before the fire bars, per share independent setting that do not link to each other mutually, and on every fire bars, be provided with convex closure, one of fire bars passes the front, the end is provided with rocking handle, and the fire bars top is provided with stop, prevents displacement, first is provided with barricade the kitchen range rear portion, purpose is to force down crater to contact high temperature by flue gas, and barricade lower end two pipes arranged side by side support, water flowing heat radiation in two pipes, stay a seam between two pipes, two pipes are gone up each and are blocked by fire clay, middle formation space, and this space is communicated with the formation gas channel outward with kitchen range, on two pipe seams, establish an adjustable pipe press seal, one of this pipe passes that kitchen range is outer and be provided with handle in the end, and it is at a gulp that this adjustable pipe middle part axially cuts half formation, and turning handle can be regulated intake, principle is as ball valve, the front portion of barricade (kitchen range mouth to) is provided with the louver baffle plate, and purpose is to stop coal charge to be close to the back barricade to hinder the combustion gas circulation, and it is crater that a space is stayed in the bottom of back barricade, the bottom of mouth is established a baffle plate ashcan is divided into two spaces, a water pipe is established at the top of this baffle plate, water flowing heat radiation in the pipe, and the front portion of plate is provided with the hole of wearing fire bars.The rear portion of back barricade is strong combustion chamber, and indoor adding the combustible granules material by refractory cement makes the honeycomb heat insulation wall all around, and firing the chamber by force has curved incline slightly, and purpose is that forced draft is mixed, and shortens and strengthens the chamber degree of depth.Combustor exit is provided with the fire lid, and the temperature adjustment degree is used.The kitchen range door closes like this, burns in the inherent anoxic of kitchen range, and high-quality combustion gas is passed louvered board and entered burner and mend wind with secondary and cooperate, and contacts high temperature, has possessed burning condition, reaches the after-flame purpose.

The present invention has set up adjustable air valve at crater, has created the distribution condition.Forced down crater, forced flue gas to contact, created hot conditions with high temperature.Set up the reinforcement chamber, strengthened that room temperature is very high a quick oxidative function.Reach efficient high-quality combustion purpose.

Concrete structure of the present invention is provided by following embodiment and accompanying drawing.

Fig. 1 is 2---2 cutaway views

Fig. 2 is 1---1 cutaway view

Fig. 3 is a left side view

Fig. 4 is tube valve cored structure figure

Fig. 5 is the vertical view of kitchen range

Describe the concrete device detailed structure situation that proposes according to the present invention in detail below in conjunction with accompanying drawing.

As Fig. 1,2, shown in 3, the place ahead of kitchen range is provided with kitchen range door (9), the below is provided with cleaning door (12), preceding inwall is provided with the fire resistant heat preserving wall, the left and right sides is fire-resistant barricade (19) in the kitchen range chamber, barricade is located on the frame plate (20), the kitchen range top is refractory brick bow cave (14), the kitchen range chamber is the high 70mm in ratio back before fire bars (10) fire bars down, fire bars exists for the only son and heir, on every fire bars, be provided with convex closure, wrap protruding 25mm, one of fire bars passes the front, passing partial cross section is rectangle, purpose is convenient to stir the fire bars rotation, the fire bars top is provided with stop (11), first is barricade for the kitchen range rear portion, the arranged side by side two 1.2 o'clock pipes (16) in the lower end of barricade, the two ends of two pipes and side water tank (23) sealing, two tube pitch are 20mm, the top of two pipes respectively blocks with fire clay, middle this space, space (18) that constitutes wide 45mm is communicated with outside fresh air inlet (25), sews on adjustable pipe (17) of 1.2 o'clock of press seal between two pipes, and this Guan Yitou passes outside the kitchen range, be provided with handle (24) and limiting plate (22) in the end, the front portion of barricade is provided with louver baffle plate (15), and baffle plate is apart from barricade spacing 40mm, and the louver baffle plate is hollow interior water flowing heat radiation, (in order to reach few heat dissipation capacity as far as possible, louver plate washer water-cooled and the barricade the most handy high temperature resistance and high strength material of pipe water-cooled are down made in the kitchen range.) the louver baffle plate is welded on the both sides water tank (23), a crater (4) is stayed in the bottom of back barricade, mouth high 200mm (to fire bars), a baffle plate (8) is established in the bottom of mouth, and kitchen range whereabouts ashcan separately, a water pipe (6) is established at the top of this baffle plate, water flowing heat radiation in the pipe, weld with both sides water tank (23) respectively at pipe two, and the fire bars rear end is through in this baffle holes, rotatable.The rear portion of back barricade is strong combustion chamber (3), add the mixed honeycomb wall (5) of making of granular fuel by refractory cement around indoor, strong combustion chamber is inclination shape, footpath, chamber 200mm, dark 600mm top is high temperature outlet (1), the below is the ashcan that falls (7), the ashcan that falls is provided with the end (27), the ashcan sidewall that falls is provided with shoot door (21), kitchen range chamber horizontal depth (kitchen range door-hinge line) 500mm, horizontal width 500mm, high (the kitchen range bar at kitchen range mouth place is to the top) 400mm, the rear portion of kitchen range is water tank (2), and back, left and right three-tank are communicated with, and fire bars has boiler waste gas pipe (13).

As shown in Figure 4, the pipe top be provided with long 450mm wide for the pipe

The hole of half (26).

As shown in Figure 5, be provided with lid (28) at combustor exit, the fire lid is hollow shape, and the fire lid is established one 1.5 o'clock pipe handles (29), and outside the handle pass-out kitchen range, the side that lid delthyrium and hollow connection of lid, lid are passed direction is provided with row's Φ 10mm passage (30), is 3 tonifying Qi holes.When burner was turned down, crater can an oxygen

Increase three oxygen supplys burning.

Claims

1. the kitchen range of a coal-burning boiler, be provided with the kitchen range door before the kitchen range, both sides are fire-resistant barricade in the kitchen range chamber, top is refractory brick bow cave, first is barricade to it is characterized by the rear portion, the lower end of barricade two 1 to 3 o'clock water service pipes (16) arranged side by side, the two ends of two pipes and side water tank (23) sealing, two tube pitch 15mm to 50mm, two pipes top each use the fire clay shutoff, the middle space (18) that constitutes wide 45mm to 100mm, this space is communicated with external feed stream hole (25), between two pipes, sew on adjustable pipe (17) of 1 to 3 o'clock of press seal, this Guan Yitou passes outside the kitchen range, and be provided with handle (24) and limiting plate (22) in the end, this pipe is provided with blow vent (26), the front portion of barricade is provided with ventilation louver baffle plate (15), the louver baffle plate is apart from back barricade spacing 30mm to 100mm, weld with side water tank (23) respectively at louver baffle plate two ends, a crater (4) is stayed in back barricade bottom, a baffle plate (8) is established in the bottom of mouth, and the fire bars rear end is through in this plate hole, and the rear portion of back barricade is strong combustion chamber (3), make honeycomb heat insulation wall (5) by refractory cement coal grain around indoor, burner port is provided with lid (28), and fire bars (10) is provided with convex closure, the high 25mm--40mm of convex closure, one of fire bars passes outside the kitchen range, fire bars head cross section is rectangle, and available spanner rotates, and the fire bars top is provided with stop (11).