CN2201579Y - Water gas producer grate - Google Patents

Abstract

The utility model relates to a water gas producer grate, belonging to the technical field of the producer gas of the production of solid carbon containing material. The water gas producer grate is composed of radiators 1, 2, 3, and 4 which are orderly covered and a base 5. A total angle 16 is 56.4 DEG. The draught area of each annular space 8 in grate layers respectively takes up 15.6%, 20.2%, 28.8%, and 35.4%. Each radiator is assembled block by block. A cone angle 17 is 36 DEG. Dust ribs 10 are arranged on the cone surfaces of the radiators 3 and 4. Dust pushing device 11 is arranged on the periphery of the base 5. The utility model has the advantages of high yield, top quality, low power consumption, stable furnace running, low ash carbon residue, and less carry-overs; the economic benefits of each water gas producer caused by energy conservation every year can be more than 18, 000 yuan.

Description

Water gas producer grate

The utility model relates to a kind of gazogene, and it belongs to solid carbon-contg material production producer gas technical field.

At existing 14 water-gas generators of PVG gasworks all is that Shanghai Heavy Machinery Plant produces, and the total height of the pagoda-shaped fire grate of this stove is 1448mm, and maximum gauge is 1335mm, fire grate draught area 1.24m ²Five layers of gas distribution structure, structurally there is following problem in this fire grate: (1) is for the water-gas generators of φ 3m, the maximum gauge of fire grate is less than normal, cause the air quantity unreasonable distribution of section of burner hearth upper inner ring district and outer zone thus, especially when high load capacity, the outer zone air quantity is obviously not enough, and gas production is low and lime-ash carbon residue amount is higher.(2) the fire grate dreg-breaking performance is poor, and regular meeting scabs in operation process, and caking and bulk lime-ash situation about can not discharge smoothly need blowing out to beat scar, take off piece, block hitting, thereby the gas deliverability of reduction stove increases labor intensity of operating personnel simultaneously.

The purpose of this utility model is to overcome weak point of the prior art, and a kind of the have ability of reasonable distribution gasifying agent and the blue-gas generator fire grate that stronger dreg-breaking performance consequently improves stove system gas ability and reduction coke and steam consumption are provided.

Task of the present utility model is finished by following measures: a kind of overall design philosophy of blue-gas generator fire grate is: (1) is kept the suitable height of fire grate and is reduced overall angle, and making the overall angle of fire grate is 56.4 °.(2) adopt four layers of gas distribution structure, increase the draught area of fire grate, fire grate divides the draught area percentage of interlayer annular space to be respectively 15.6%, 20.2%, 28.8%, 35.4% from top to bottom, and the conical surface inclination angle of stove sheet is 36 °.(3) strengthen break and deslagging ability, only on third and fourth layer stove sheet conical surface of four layers of stove sheet, four continuous grey muscle are housed, four removable ash-pushing machines evenly are set on base, when fire grate rotates, under the effect of grey muscle and ash-pushing machine, the bulk lime-ash obtains fragmentation, and the interior bed of material of stove is evenly moved down, and especially ash-pushing machine plays key effect.(4) for easy to maintenance, four layers of stove sheet all adopt the piecemeal pin-connected panel, are convenient to maintenance or change the stove sheet.

Accompanying drawing 1 is the structural representation of fire grate;

Accompanying drawing 2 is the structural representation of ash-pushing machine 11.

The utility model describes in detail embodiment below with reference to accompanying drawing: a kind of diameter is the blue-gas generator of 3m, its fire grate is made up of topped successively stove sheet 1,2,3,4 and base 5, as shown in Figure 1, stove sheet 1 is the spherical crown taper type, stove sheet 2,3,4 is taper type, its diameter increases successively from top to bottom, form pagoda shape, boss 7 and support are mutually all arranged on the every stove sheet 1,2,3,4, fixed by bolt 9, all there is the flanging 6 of a vertical lower edge of leaving certain annular space 8, every stove sheet 1,2,3,4 between the stove sheet.The important technological parameters of the utility model fire grate: total height is 1578mm, and maximum gauge is 1980mm, and the draught area of fire grate is 2.05m ², 16(fire grate inclination angle, fire grate inclination angle is meant the angle between an imaginary taper seat and the horizontal plane.This taper seat is by by inboard, stove sheet 1 lower edge, and the bus of the outside, stove sheet 2,3,4 lower edges each point, rotates and forms around central shaft.) scope be 54 °～60 ° suitable, best fire grate inclination angle 16 is 56.4 °.Adopt four layers of gas distribution structure, increase the draught area that fire grate divides interlayer annular space 8, the percentage of the draught area of each annular space 8 of fire grate interlayer is respectively 12～16%, 20～24%, 28～32%, 35～40% from top to bottom, and the percentage of the optimal ventilation area of each annular space 8 is respectively 15.6%, 20.2%, 28.8%, 35.4% from top to bottom.The inclination angle 17 of stove sheet 2,3,4 is 30 °～40 °, and optimum angle of incidence 17 is 36 °.In order to strengthen the ability of break and deslagging, four continuous grey muscle 10 are housed on the conical surface of stove sheet 3,4, and each bar ash muscle 10 all comprises two sections arc-shaped bend cylinders, and circular arc cylinder radius is 440mm on stove sheet 3, circular arc cylinder radius is 620mm on stove sheet 4, and two sections circular arc cylinder slynesses are joined.When fire grate rotated, 10 pairs of ash beds of grey muscle applied outside, downward mechanical force, and the bed of material evenly moves down in the stove so that make, and the effect of pushing and grinding the bulk lime-ash is arranged simultaneously.Uniform four dismountable ash-pushing machines 11 on the periphery of base 5, the structure of ash-pushing machine 11 as shown in Figure 2, the face of pushing away 12 of holding of ash-pushing machine 11 is the crooked cylinder of circular arc, radius is 420mm, back bent angle is 50 °.Connecting plate 13 usefulness bolts 14 by ash-pushing machine 11 middle parts are fixed on the connecting plate 15 of uniform four protrusions of base 5 peripheries.Whole fire grate is connected with outer ash-pan with bolt, when outer ash-pan rotates, whole fire grate is rotated thereupon, like this, produces outside mechanical presses power by ash-pushing machine 11 and makes the bulk slag be subjected to fragmentation.Ash-pushing machine 11 is constantly pushed contiguous lime-ash to outer rim and is discharged smoothly, reaches the situation that the bed of material evenly moves down in the stove.Because the adverse effect that the bulk slag rationally distributes and produces for gas stream in the stove has been eliminated in the break effect of ash-pushing machine 11.Each stove sheet 1,2,3,4 all adopts the piecemeal assembly unit, and is assembled by two as stove sheet 1,2, and stove sheet 3 is assembled by 3, and stove sheet 4 is assembled by 4, is convenient to be removed for repair or replacement the stove sheet like this, and the heavy bearth shell of dismounting does not only save time but also laborsaving.

The utility model is compared with existing pagoda-shaped fire grate, and its leading indicator has following advantage: (1) single stove gas production improves more than 10%. (2) mean value of its carbon content of cinder of pagoda-shaped fire grate is 23.07%, and the mean value of carbon content of cinder of the present utility model is 14.9%. (3) pagoda-shaped fire grate, its carry-over quantity accounts for 2% of total coke ratio, and the utility model is 0.7%, this be because it have bigger draught area and on section of burner hearth the reasonable distribution air quantity be closely related. (4) lime-ash is discharged smoothly, and the lime-ash of maximum lumpiness is 300mm, therefore need not block hitting, takes off piece, has greatly alleviated operative employee's labour intensity. (5) the gas burner operating condition is stable, notes optimization of process conditions, and load still can improve, and every stove every year, the economic benefit because of energy-conservation generation was 180,000 yuan. (6) life cycle more than 2 years and also be convenient to the maintenance.

Claims (1)

1, a kind of blue-gas generator fire grate, it is by topped successively stove sheet (1), (2), (3), (4) and base (5) form, stove sheet (1) is the spherical crown taper type, stove sheet (2), (3), (4) be taper type, its diameter increases successively from top to bottom, form pagoda shape, boss (7) and support are mutually all arranged on the every stove sheet, fixed by bolt (9), leave certain annular space (8) between the stove sheet, all there is the flanging (6) of a vertical lower edge of every stove sheet, it is characterized in that this fire grate adopts four layers of gas distribution structure, and fire grate inclination angle (16) are 54 °～60 °; The percentage of the draught area of each annular space of fire grate interlayer (8) is respectively 12～16%, 20～24%, 28～32%, 35～40% from top to bottom; Each stove sheet (1), (2), (3), (4) all adopt piecemeal assembled, and its inclination angle (17) are 30 °～40 °, and four continuous grey muscle (10) are housed on the conical surface of stove sheet (3), (4); Uniform four demountable ash-pushing machines (11) on the periphery of furnace bottom (5), the face of pushing away (12) that holds on the ash-pushing machine (11) is fixed on the connecting plate (15) of uniform four protrusions of base (5) periphery with bolt (14) by the connecting plate (13) in the middle part of the ash-pushing machine (11) for the crooked cylinder of circular arc.

Images