CN203043742U

CN203043742U - Inertia-gravity dust collector

Info

Publication number: CN203043742U
Application number: CN 201320031191
Authority: CN
Inventors: 熊承庆; 童珍; 张丹; 黄萌
Original assignee: Building Material Energy Saving Apparatus General Plant Huangshi
Current assignee: Building Material Energy Saving Apparatus General Plant Huangshi
Priority date: 2013-01-22
Filing date: 2013-01-22
Publication date: 2013-07-10
Anticipated expiration: 2023-01-22

Abstract

The utility model relates to environment-friendly equipment and particularly relates to an inertia-gravity dust collector applied in industrial production. The inertia-gravity dust collector is provided with a shell. The inertia-gravity dust collector is characterized in that a smoke inlet pipe is arranged at the middle part of one side of the shell, an ash outlet pipe is arranged at the bottom part of the shell and a smoke exhausting pipe is arranged at the top part or the side wall of the shell; and the position on the shell, which is positioned at a pipe opening of the smoke inlet pipe, is provided with a plurality of layers of flow guiding plates with the downward guiding direction. The inertia-gravity dust collector is simple in structure, less in resistance, low in cost and obvious in dust collecting effect, and is mainly used for preposed treatment of cloth-bag dust collectors and other dust removers, so that the treatment efficiency and the treatment effect of the cloth-bag dust collectors and other tail-end dust removers are improved.

Description

The inertia-gravity dust-precipitator

Technical field

The utility model relates to environmental protection equipment, especially a kind of inertia-gravity dust-precipitator.

Background technology

Extensive use along with wind-force sorting technology in the industrial production, bagroom is not only air purifier, the gatherer of material (product) especially, be 255t/h as the Φ 6.3 vertical grinder output in the micro mist production, the micro mist that this 255t/h is qualified enters terminal bagroom by pneumatic separating and collects warehouse-in.Its dust concentration that enters bagroom is about 500g/Nm ³, i.e. 500000Mg/Nm ³, purify the Nm to 30Mg/ ³Discharging, ratio is 16666.7 times, for life-span of increasing cloth bag with reduce the power consumption that resistance namely reduces air-introduced machine, usually the cloth bag filtration velocity is reduced to 0.4～0.5m/min from 1～1.2m/min and uses, its volume increases and is twice abovely, and cost also almost is more than one times.Engineering circle was once set up rotoclone collector before cloth bag, reduce the cloth bag entrance concentration, but the shortcoming of cyclone dust collection is: 1. resistance is big, its body resistance is 1200～1500Pa, add necessary elbow, reducer pipe etc., the resistance summation is not less than 2000Pa, is example with the vertical mill of Φ 6.3m, and cyclone dust collection will increase the power consumption of air-introduced machine greater than 500kw.h/h; 2. quick abrasion and be difficult to repair; 3. technological design is complicated, the difficult layout; So in the pneumatic separating system, all cancelled rotoclone collector, would rather strengthen the cloth bag area and solve resistance and the problem in service life.

Summary of the invention

The purpose of this utility model will overcome exactly that the bagroom running resistance is big, and volume is big, and investment, the problem that operating cost is high provide a kind of inertia-gravity dust-precipitator of bagroom pre-process.

Concrete scheme of the present utility model is: design has housing, and it is characterized in that: the middle side part at housing is equipped with smoke-intake pipe, in the bottom of housing cement output tank is housed, and is provided with smoke exhaust pipe at top or the sidewall of housing; And the mouth of pipe place that is positioned at smoke-intake pipe at housing is provided with some layers of deflector, and guiding downwards.

For being conducive to the discharge of dust, housing described in the utility model is equipped with a side of smoke-intake pipe or a side lower part relative with smoke-intake pipe is inclined wall.

Deflector described in the utility model is arcuate structure, and starting point tangential direction and the level of arc deflector advanced drift and become α=35 °～45 ° of angles to arrange.

For guaranteeing dust collection effect, when smoke exhaust pipe was located at sidewall, the internal orifice of smoke exhaust pipe was provided with guide fence in the utility model, posting port structure in the formation, and upward posting port is higher than smoke-intake pipe.

Mentality of designing of the present utility model is: for significantly reducing the entrance concentration of cloth bag, the applicant has studied the moving rule of the fate of powder dust particle in liquid, has

d= ……①

In the formula: d---flue gas carries the diameter mm of material under motion state

The speed m/s of V---flow of flue gas

The characteristic coefficient of C---conveying equipment and operating mode.Under the equipment operating mode identical with condition, can be considered a constant

The proportion of U---material, t/m ³

By formula 1. as seen, under the certain condition of C and U, square being directly proportional of the diameter that flowing gas carries particle and wind speed, for example wind speed is improved 2 times then in the air-flow diameter of suspended particles will increase 4 times, quality increases to 64 times, conversely.Be collected in analysis by this rule under the prerequisite of grading of dust, calculate the wind speed of required sedimentation, before the cloth bag entrance, set up a preposition inertia-gravity dust-precipitator, can accept 90～95% material earlier, enter bag collection again, qualified discharge.Cloth bag is only born purification work under this operating mode, and filtration velocity can be brought up to 0.8～1m/min, and volume reduces over half.

The mechanism of operation of the present utility model is: at a high speed, the flue gas of high dust content pours in the dust-precipitator housing from smoke-intake pipe, through deflector guiding below, the lower end of powder directive housing under the effect of inertia and gravity, and sedimentation is concentrated and is discharged.Housing has guaranteed required rising wind speed through the huge section of design, and a large amount of powders are further settled down.Flue gas after being purified enters terminal dust arrester from the smoke exhaust pipe discharge and further purifies.

The utility model is simple in structure, and running resistance is little, and is cheap, no energy consumption, and dust collection effect is remarkable, and long service life is easy to maintenance.Particularly unite use with sack cleaner, it is over half that the sack cleaner volume is reduced, and investment, operating cost reduce greatly.

Description of drawings

Fig. 1 is the schematic diagram of the utility model structure one;

Fig. 2 is the A-A view of Fig. 1;

Fig. 3 is the application schematic diagram of the utility model structure one;

Fig. 4 is the schematic diagram of the utility model structure two.

Among the figure: 1-smoke-intake pipe, 2-deflector, 3-housing, the last posting port of 4-, 5-guide fence, 6-smoke exhaust pipe, 7-cement output tank, 8-inclined wall, 9-sack cleaner, 10-inclined wall.

The specific embodiment

Example 1: referring to Fig. 1,2, the utility model structure one has housing 3, particularly: the left side central portion at housing 3 is equipped with smoke-intake pipe 1, in the bottom of housing 3 cement output tank 7 is housed, right side wall at housing 3 is provided with smoke exhaust pipe 6, and be provided with guide fence 5 at the internal orifice of smoke exhaust pipe 6, posting port structure in the formation, and go up posting port and be higher than smoke-intake pipe 1; The mouth of pipe place that is positioned at smoke-intake pipe 1 at housing 3 is provided with three layers of arc deflector 2(according to conditions such as the type of furnace, the operating mode design number of plies, at least guarantee one deck), guiding downwards, and starting point tangential direction and the level of arc deflector 2 are advanced drift and are become α=35～45 °, are specially α=45 and arrange.

The side (left side) that housing described in the present embodiment 3 is equipped with smoke-intake pipe 1 is inclined wall 8.

When the utility model structure one was used, best mode was to place the front end series connection of sack cleaner 9 to use, referring to Fig. 3.

Example 2: the utility model structure two, referring to Fig. 4, it has housing 3, and particularly: the left side central portion at housing 3 is equipped with smoke-intake pipe 1, in the bottom of housing 3 cement output tank 7 is housed, and is provided with smoke exhaust pipe 6 at the top of housing 3; And the mouth of pipe place that is positioned at smoke-intake pipe 1 at housing 3 is provided with five layers of arc deflector 2, guiding downwards, and the starting point tangential direction of arc deflector 2 is advanced drift with level and is become α '=35 ° angle layout.

The right side wall bottom of housing described in the present embodiment 3 is inclined wall 10.

The utility model structure two can directly place because wind speed in the output enhancing tube increases the drier body port of export that the material take out of increases suddenly, can reduce the pressure of terminal dust-precipitator.

Claims

1. the inertia-gravity dust-precipitator has housing, it is characterized in that: the middle side part at housing is equipped with smoke-intake pipe, in the bottom of housing cement output tank is housed, and is provided with smoke exhaust pipe at top or the sidewall of housing; And the mouth of pipe place that is positioned at smoke-intake pipe at housing is provided with some layers of deflector, and guiding downwards.

2. inertia-gravity dust-precipitator according to claim 1, it is characterized in that: described housing is equipped with a side of smoke-intake pipe or a side lower part relative with smoke-intake pipe is inclined wall.

3. inertia-gravity dust-precipitator according to claim 1, it is characterized in that: described deflector is arcuate structure, starting point tangential direction and the level of arc deflector advanced drift and become α=35 °～45 ° of angles to arrange.

4. inertia-gravity dust-precipitator according to claim 1, it is characterized in that: when smoke exhaust pipe was located at sidewall, the internal orifice of smoke exhaust pipe was provided with guide fence, posting port structure in the formation, and go up posting port and be higher than smoke-intake pipe.