CN2042746U

CN2042746U - Low-resistance dust remover

Info

Publication number: CN2042746U
Application number: CN 88214993
Authority: CN
Inventors: 胡金堂
Original assignee: Individual
Current assignee: Individual
Priority date: 1988-10-13
Filing date: 1988-10-13
Publication date: 1989-08-16

Abstract

The utility model discloses a 'low-resistance dust remover' which is the investigative improvement of a miniature stove. The utility model adopts the principle of impact force and low speed sedimentation; the smoke gas vertically downwards enter the position which is 50-100 mm higher than the water face of a deposition dust through the 90 DEG bent tube; a bell type sprinkler head is arranged on the outlet of the bent tube; the soot particle can be quickly settled by making use of the impact force of water; the smoke gas is purified. Compared with a universal spiral cased casing type; the resistance is reduced by 60-70 mmh-[2] O; the noise pollution is reduced matching with a low speed draught fan; the electrical energy can be saved, the cost is decreased because steel is replaced by brick; the satisfactory result can be achieved, because the utility model is used matching with a chain grate stove and a reciprocating stove.

Description

Low-resistance dust remover

The utility model " low-resistance deduster " is to study improved for miniature boiler purifies flue gas.

The existing general deduster of miniature boiler is the spiral case cyclone type.Its principle is to allow flue gas tangentially enter spiral case with the high speed of 20～30 meter per seconds, by strong rotatablely moving grit is separated, to reach the purpose that purifies flue gas.

The characteristics of this class deduster are resistance big (about the 80mm water columns), when with the supporting use of miniature boiler, must select for use high speed air-introduced machine (2900 rev/mins) result to bring many stubborn problems to operation.

1. high rotating speed brings high and dry sound, high power consumption, high wearing and tearing, high vibrations.

2. high flow rate brings deduster because of wearing and tearing life-span not long (local mill was saturating in 1～2 year).

3. efficiency of dust collection unsatisfactory (when not reaching design current velocity).

4. the metal consumption is big, and cost is up to 5～6,000 yuan (2 tons/time).

The purpose of this utility model is will provide a kind of can guarantee dust removing effects, can reduce the flue gas circulating resistance again, and high flow rate, high-drag, high wearing and tearing, this vicious circle of high power consumption are changed into benign cycle.

The concrete structure of utility model is drawn by following enforcement and accompanying drawing thereof, elaborates below in conjunction with accompanying drawing:

The utility model is to realize like this, adopt " impulse force; low speed sedimentation principle " opposite with high flow rate, the design radially enters 50～100mm place on the water surface of ash settling basin (4) through 90 ° of bend pipes (1) with one vertically downward than major diameter garden cylindrical shell (by flue gas flow rate 1 meter per second) flue gas, and adorn a bell fountain head (2) in the exit of bend pipe (1) and connect with water circulating pump, fountain head and smoke pipe center are 45 °, can contact effectively with flue gas, grit in the flue gas is borrowed the impulse force of water and the instantaneous acceleration of flue gas here, slow down and fall in the pond, flue gas is purified.

Below in conjunction with accompanying drawing the utility model is further described.The utility model " low-resistance deduster " by cylindrical shell (6), advance cigarette bend pipe (1), bell fountain head (2), ash settling basin (4), smoke abnormity joint (7), water circulating pump (5) is formed.The water surface elevation of ashpit is regulated with overfall (10), and the ejection water film thickness of fountain head (2) is regulated with bullet (3).(8) be pressure bulkhead, (9) are circulating water screen, and cyclic hydrostatic pressure is 1.5～2kg/cm ², use when digging dust stratification clearly for discharging valve (11).

The utility model has passed through practical probation, and effect is fine, and the existing universal following advantage of having compared:

1. dust remover resistance reduces by 60～70mmH ₂O, can with the supporting use of low speed air-introduced machine, solved the difficult problem of high and dry sound, high power consumption.

2. simple in structure, make easily, can also replace steel with brick, stone, can fall and reach cost 1/2.

3. with reciprocal grate, the supporting use of traveling-grate stoker, can reach the desired discharge index (200mg/m of environmental protection fully ³).

Claims

1, boiler exhaust gas is carried out dedusting, particularly be applicable to the dust arrester of miniature boiler, the outlet of the smoke-intake pipe of this device (1) faces toward the water surface of an ash settling basin (4) vertically downward, apart from the water surface 50～100mm, a bell fountain head (2) that can purify the flue gas grit is housed in the exit, in fountain head (2) center the bullet (3) that can regulate water film thickness is arranged, it is characterized in that:

The bell fountain head of A (2) places the center of smoke pipe outlet to be connected with circulating pump (5) water source.

The B outlet flue is apart from the water surface 50～100mm (just regulating with water level).

2, device according to claim 1 is characterized in that:

Bell fountain head (2) spray angle and smoke pipe center are 45 °, and the water spray film thickness can be adjusted to 0.5～1.5mm.