CN1958125A

CN1958125A - Helix cleansing dust collector with needle bars type vanes

Info

Publication number: CN1958125A
Application number: CN 200610005205
Authority: CN
Inventors: 李德星
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-01-01
Filing date: 2006-01-01
Publication date: 2007-05-09

Abstract

A duster with needle rods-blades helix body for removing smoke dust from fume features that the needle rods-blades helix body is used to guide, divide and stir the gas, generate the waves, foams and drops of liquid, and increase the contact surface between gas, liquid and blades, so improving the separation effect of smoke dust.

Description

Helix cleansing dust collector with needle bars type vanes

Helix cleansing dust collector with needle bars type vanes is the environmental protection equipment that is used for Air Pollution Control, can purify dust and pernicious gas in the contaminated gas simultaneously.

Existing Air Pollution Control functions of the equipments are single, remove implication and dedusting branch and are arranged, and are divided into cleaner, gaseous contamination control appliance.Wherein cleaner is divided into again: dry method, wet method, electrostatic precipitation.For example boiler smoke abatement dedusting, need combine to handle just with deduster and desulfurizing tower to reach requirement, and the volume of cleaner is big besides, and self resistance is big, and floor space is big etc.Particularly the processing for the micronic dust particle below the 1um is difficult to reach emission request.Absorption equipment in the gaseous contamination control appliance, adsorption plant, all relatively poor to the performance that liquid distributes again, gas, liquid two-phase skewness have influenced the separating effect of control appliance.It is big that two kind equipments all exist water yield consume, and the liquid after dedusting, the purification can produce the secondary pollution of water as not handling.

Helix cleansing dust collector with needle bars type vanes of the present invention can reach the pernicious gas of contaminated gas, and solid is the purpose of isolation of purified simultaneously, and it is strong to be widely used adaptive capacity, reduces secondary pollution.

1, smoke abatement and dust control: can reach the incorporate purpose of smoke abatement and dust control with pernicious gases such as dust in the elimination combustion product gases and sulfur dioxide;

2, thorough to the purification of oil smoke, non-secondary pollution;

3, to the purified treatment of pernicious gas and volatile organic matter Vocs, can bring into play to maximum limit the effect of absorbent, reduce the consumption of absorbent, can reach clean-up effect again simultaneously.

The spirochetal helicoid of helix cleansing dust collector with needle bars type vanes of the present invention is to be combined by the needle bar wire rod.

Helix cleansing dust collector with needle bars type vanes of the present invention, description of drawings (Fig. 1 is the schematic diagram of helix cleansing dust collector with needle bars type vanes) is by shell (1); Needle bar blade screw body (2); Expansion chamber (3); Gas approach (4); Purified gas outlet (5); Liquid level visor (6); Ash discharging gear (7); Actuating unit (8); Inlet (9); Front and rear cover (10); Resistance absorber control instruments such as (11) and valve are formed.

Shell (1) is to be rolled by metallic plate, corrosion resistant plate to form, and also can use reinforced plastics, fiberglass to make, and the use of material should be determined according to the temperature and the corrosivity of smoke treatment.Gas approach (4) clean gas outlet (5) is respectively above two of shell (1); Inlet (9) also on shell (1), can be kept liquid level, liquid make-up; The two ends of shell (1) with rear and front end lid (10) be connected and fixed needle bar blade screw body (2) and sealing, prevent that gas from leaking respectively.

Needle bar blade screw body (2) is to be combined by axle, needle bar blade, resistance absorber (11); The axle can be steel pipe, round steel, reinforced plastics tubing, the tubing of bar, polytetrafluoroethylene (PTFE), bar, can also with metal wire rod twist into twisted shape the axle; The needle bar blade can be steel wire, stainless steel wire, the wire drawing of reinforced plastics, single combination of planting needle bar wire rod or multiple needle bar wire rod of the wire drawing of polytetrafluoroethylene (PTFE).The wire rod of above-mentioned needle bar blade can straight line, can also be wave pattern, and the sub-connecting process of needle bar blade and axle can be divided into welding, insertion, wringing etc.Pitch can be uniform pitch, varying pitch and mix pitch.

Import for handling oil smoke, pernicious gas and volatile organic matter Vocs can be designed to two imports in two, an outlet, and outlet is in the centre.Its hand of spiral is positive and negative relative, and on the root axle.Because of there not being dust, so do not need ash discharging gear, the mode of available valve or overflow gives off waste liquid.

Dried for the ease of cleaning smoothly, wet interface and be clipped in knot ash in the needle bar blade screw, the switch of motor can be two-direction switch, ash discharging gear (7) for the big boiler of coal consumption, stove, metallurgical furnace and husk stove, the bigger combustion apparatus of tangerine bar stove dust, adopt mechanical ash discharging gear.Coal consumption is little, and the ash discharge amount is little adopts artificial ash discharge, does not establish mechanical ash discharging gear.In order to make operating resistance less, do not influence flue gas again and normally discharge, adopt buncher, and cooperate ruuning situation, bidirectional modulation reaches and produces the requirement of coordinating with environmental protection, should guarantee to produce needs, guarantees that again fume emission is up to standard.

When handling the gas of exothermic reaction, open a by-pass prot behind the resistance absorber (12) control valve or adjustment doors are installed, utilize the cold air that enters to reduce the temperature of reaction.

Helix cleansing dust collector with needle bars type vanes of the present invention be utilize needle bar blade screw body (2) the needle bar blade when rotated, all the time there is an end fully to contact with absorption liquid, tangentially, constantly produce abundant water droplet, moisture film, spray, bubble, increase the surface area of absorption liquid, created the condition that gas, liquid, solid fully contact.The needle bar blade is to the effect of gas in addition: (one) crosscut to aspect, crosscut has not only enlarged the surface area of gas, and under action of centrifugal force, flue gas, dust get rid of rapidly to shell (1) and penetrate in the absorption liquid, has reached the purpose that purifies; (2) the needle bar blade that vertically superposes aspect has vertically constituted loose but never miss screen pack, has increased clean-up effect; (3) air-flow that vertically enters besides constantly bumps with the needle bar blade of laterally rotation, enters successively, gos deep into step by step, makes that once more air-flow is purified fully, thereby has guaranteed the effect of purifying and dedusting.

Helix cleansing dust collector with needle bars type vanes of the present invention in use should be noted following item:

1, the height of liquid level is adjusted in control; The liquid level of absorption liquid, very big to the influential effect of purifying and dedusting, liquid level is too high can to increase resistance, and causes flue gas with water; It is defective that too low meeting produces the purifying and dedusting effect, therefore should adjust according to ruuning situation, and the situation of liquid level is grasped in strictness;

2, control rotary speed; The speed of rotation has confidential relation to the generation of water droplet, spray, water smoke, foam and the resistance and the treating capacity of flue gas, in use should regulate according to the air quantity of blower fan and the needs of operation, is as the criterion to reach best the requirement.

3, the adjusting of the bypass pipe of resistance absorber should produce negative pressure at the bypass mouth of pipe, but can not influence blower fan and operation, and prevent the rapid drawdown of temperature, makes smoke condensation, causes flue gas with water to produce secondary pollution.

Claims

1, helix cleansing dust collector with needle bars type vanes by: shell (1), needle bar blade screw body (2), expansion chamber (3), gas approach (4), purified gas outlet (5), liquid level visor (6), ash discharging gear (7), actuating unit (8), inlet (9), front and rear cover (10), resistance absorber (11), etc. control instrument and valve form, it is characterized in that the helical blade of needle bar blade screw (2) is to be combined by needle bar.

2, the needle bar blade according to claim 1 wiredrawing wire rod that is metal.

3, the needle bar blade according to claim 1 wiredrawing wire rod that is reinforced plastics.

4, needle bar blade according to claim 1 is the ptfe plastic wiredrawing wire rod.

5, the axle of needle bar blade screw body according to claim 1 (2) is that metal wire rod twists into the twisted shape axle, and the needle bar material clip is formed into the needle bar blade therein.

6, according to the by-pass port of the described resistance absorber of claim 1 (11), in order to the processing of exothermic reaction gas, unlatching can reduce the reaction delivery temperature.

7, the needle bar blade according to claim 1 combination that is straightway.

8, needle bar blade according to claim 1 is the combination of waveform line segment.

9, needle bar blade according to claim 1 is the fixed form that wringing inserts with connecting of axle.