CN205925318U - Rotation type multi -tube dust cleaner - Google Patents

Abstract

The utility model relates to a dust removal device, in particular discloses a rotary multi-pipe dust collector. The rotary multi-pipe dust collector includes a dust removal tower connected and fixed by a bracket, and is characterized in that: several dust removal pipes installed vertically and side by side are installed in the dust removal tower, and the dust removal pipe includes a pipe body provided with a hollow inner pipe , the top and the end of the pipe body are respectively provided with a hemisphere located in the center of the pipe body through a support rod, a central shaft is connected between the upper and lower hemispheres, and fan blades evenly distributed up and down are installed on the central shaft. The utility model is simple in structure, convenient to use, reasonable in design, flexible in application, can effectively remove fine dust in flue gas, remove slurry droplets and aerosol particles carried by flue gas, realize ultra-clean emission of flue gas, and is suitable for wide popularization and application.

Description

Rotary multi-tube dust collector

(1) Technical field

The utility model relates to a dust removal device, in particular to a rotary multi-pipe dust collector.

(2) Background technology

The mist and dust collector is the key equipment in the wet flue gas desulfurization system. The flue gas treated by the desulfurization absorption tower carries a large number of slurry droplets. These droplets contain solids and solubles. They are mainly after absorbing sulfur dioxide. If the product, excess desulfurizer and uncaptured soot are not removed, these droplets will cause a series of problems such as deposition, clogging, scaling, secondary pollution, gypsum rain, and subsequent equipment corrosion. The function of the mist and dust collector is to remove these droplets as much as possible, and to separate the gas and water from the desulfurized flue gas. The performance of the mist and dust collector not only affects the safe and reliable operation of the desulfurization system, but also directly affects the emission indicators.

At present, the existing fog and dust collectors are generally baffle plate fog and dust collectors. Baffle plate fog and dust collectors have various layouts such as flat type, roof type, and combined type. The internal average guaranteed value is 75mg/Nm ³ , the pressure drop is generally less than 200Pa, and the critical separation particle size of the ridge type mist and dust collector is 20-30μm. Influenced by factors such as spacing and arrangement of mist and dust collectors, if no flue gas purification measures such as wet electrostatic precipitators are adopted in the follow-up, it will be difficult to ensure the basic requirements of the smoke and dust emission concentration of thermal power plants ≤ 20mg/Nm ³ , but even if the wet electrostatic precipitator technology is added in the future It is also very difficult to achieve the ultra-clean emission target of ≤5mg/Nm ³ .

(3) Contents of the invention

In order to make up for the deficiencies of the prior art, the utility model provides a rotary multi-pipe dust collector with simple structure and convenient use.

The utility model is achieved through the following technical solutions:

A rotary multi-pipe dust collector, including a dust removal tower connected and fixed by a bracket, characterized in that: several dust removal pipes installed vertically and side by side are installed in the dust removal tower, and the dust removal pipe includes a pipe with a hollow inner pipe. The top and the end of the pipe body are respectively provided with a hemisphere at the center of the pipe body through a support rod, a central shaft is connected between the upper and lower hemispheres, and fan blades evenly distributed up and down are installed on the central shaft.

The utility model realizes the purification of the flue gas by filling the dust removal pipe in the dust removal tower and absorbing the dust through the dust removal pipe; the pipe wall of the dust removal pipe is divided into two layers inside and outside, and the inner layer is a hollow structure. The fan blades installed on the central shaft are installed, and the flue gas is processed through the rotation of the fan blades, so that the flue gas undergoes centrifugal action during the rising process, and the smoke, mist, etc. in the flue gas enter the pipe body through the hollow inner tube Collection, to achieve the purpose of dust removal.

The more optimal technical scheme of the utility model is:

The fan blades on the central axis are divided into upper and lower parts. The installation angle of the fan blades on the upper part is completely opposite to that of the lower part. Under the action of the flow of smoke, the rotation directions of the upper and lower fan blades are opposite. Reverse treatment of smoke and dust, prolonging the flow time of smoke and dust in the dust removal pipe, preventing the smoke and dust caused by inertia problems from being discharged with the flue gas.

A spray device facing the dust removal pipe is installed on the bracket at the upper end of the dust removal tower, and the dust removal pipe is regularly sprayed so as to continue to use after cleaning.

The length of the dust removal pipe is 1.5m, and resource saving and utilization are realized on the premise of ensuring clean flue gas treatment.

The utility model is simple in structure, convenient to use, reasonable in design, flexible in application, can effectively remove fine dust in flue gas, remove slurry droplets and aerosol particles carried by flue gas, realize ultra-clean emission of flue gas, and is suitable for wide popularization and application.

(4) Description of drawings

Below in conjunction with accompanying drawing, the utility model is further described.

Fig. 1 is the structural representation of the utility model;

Fig. 2 is a structural schematic diagram of the dust removal pipe of the present invention.

In the figure, 1 bracket, 2 dust removal tower, 3 dust removal pipe, 4 pipe body, 5 inner pipe, 6 support rod, 7 hemisphere, 8 central axis, 9 fan blade, 10 spraying device.

(5) Specific implementation methods

Accompanying drawing is a kind of concrete embodiment of the utility model. This embodiment includes a dedusting tower 2 connected and fixed by a bracket 1. A plurality of dedusting pipes 3 vertically connected and installed in parallel are installed in the dedusting tower 2. The dedusting pipe 3 includes a pipe body 4 provided with a hollow inner pipe 5. The top and the end of the body 4 are respectively provided with a hemisphere 7 located at the center of the pipe body 4 through the support rod 6, and a central axis 8 is connected between the upper and lower hemispheres 7, and fan blades 9 evenly distributed up and down are installed on the central axis 8; The blades 9 on the central axis 8 are equally divided into upper and lower parts, and the installation angle of the blades 9 on the upper part is completely opposite to that of the blades 9 on the lower part; The spray device 10 of the dust removal pipe 3; the length of the dust removal pipe 3 is 1.5m.

The flue gas containing desulfurization slurry and dust enters from the bottom of the dust removal tower 2, and the flue gas passes through the dust removal pipe 3. The flow of the flue gas drives the fan blade 9 on the central axis 8 in the dust removal pipe 3 to rotate, and produces a centrifugal effect on the flue gas , so that the flue gas is in a spiral rising state, the probability of the slurry in the flue gas colliding with each other is obviously increased, and it is useful to condense into a large-grained slurry, and the formed large-grained slurry is thrown to the inner pipe 5 of the dust removal pipe 3 by centrifugal force , form a water film on the inner tube 5, and part of it enters the space between the inner tube 5 and the tube body 4 through the hollow on the inner tube 5 to collect, and the water film further absorbs the dust in the continuously impacted slurry, and flows along the inner tube 5 The hollows on the top flow into the bottom of the pipe body 4 for unified collection; after the dust removal pipe 3 has been running for a period of time, the spray device 10 on the bracket 1 performs regular spraying, and while the dust removal pipe 3 is cleaned, the dust collected by the dust removal pipe 3 is taken away. Droplets, dust and other sundries, so as to facilitate the recycling of the dust removal pipe 3.

Claims (4)

1. a kind of rotary multi-tube dust cleaner, including by support（1）The gas wash tower being connected（2）It is characterised in that：Described Gas wash tower（2）Inside it is provided with and vertically connect several dust removing tubes installed side by side（3）, dust removing tube（3）Including being provided with hollow out Pipe（5）Body（4）, body（4）Top and end pass through support bar respectively（6）Erection has positioned at body（4）The hemisphere at center Body（7）, upper and lower two halves spheroid（7）Between be connected with central shaft（8）, central shaft（8）On equally distributed flabellum up and down is installed （9）.

2. rotary multi-tube dust cleaner according to claim 1 it is characterised in that：Described central shaft（8）On flabellum（9） It is divided into upper and lower two parts, the flabellum of upper part（9）Setting angle and the flabellum of lower part（9）Setting angle is completely contrary.

3. rotary multi-tube dust cleaner according to claim 1 it is characterised in that：Described gas wash tower（2）The support of upper end （1）On be provided with just to dust removing tube（3）Spray equipment（10）.

4. rotary multi-tube dust cleaner according to claim 1 it is characterised in that：Described dust removing tube（3）Length be 1.5m.