CN103830959A - Refined filtration device capable of cleaning rotary spray slurry on line - Google Patents

Abstract

The invention provides a refined filtration device capable of cleaning rotary spray slurry on line. The refined filtration device comprises a top tank and a refined filtration tank, wherein a longitudinal filtering pipe is arranged in the refined filtration tank; the side wall of the longitudinal filtering pipe is communicated with the side wall of the top tank through a transverse pipe; limiting slots are formed in two sides of an orifice of the transverse pipe in the top tank; a limiting supporting plate is arranged at the bottom of the limiting slots; a filtering plate is arranged in the limiting slots; the filtering plate consists of filtering nets; the orifice of the transverse pipe can be covered when the bottom of the filtering plate is in contact with the limiting supporting plate; a frustum-shaped filtering body is arranged in the longitudinal filtering pipe; the filtering nets are arranged on the bottom surface and the side walls of the frustum-shaped filtering body; a limiting ring is arranged at the bottom of the longitudinal filtering pipe; the inner diameter of the limiting ring is smaller than that of the frustum-shaped filtering body; a slurry outlet is formed in the lower part of the refined filtration tank. According to the device, desulfurized slurry can be subjected to three-stage filtering, solid particles carried in the desulfurized slurry are prevented from entering a rotary spray device, online cleaning can be realized when the filtering net is cleaned, and the desulphurization equipment does not need to be stopped.

Description

One can Hand scarf rotating spraying slurries fine filtering device

Technical field

The present invention relates to the slurry filter using in a kind of sulfur removal technology, specifically one can Hand scarf rotating spraying slurries fine filtering device.

Background technology

In spray dry desulfurization technique, rotary atomization device is the nucleus equipment in a whole set of technique, and it,, by mechanism, is dispersed into very superfine particulate by slurries, makes it fully react and be dried with flue gas, realizes high-efficiency desulfurization.Because rotary atomization device is a kind of extremely accurate equipment, once entering rotary atomization device, the solid particulate matter carrying in desulfurization slurry will cause sprayer unit to block, its spindle vibration is raise rapidly, acceleration equipment wearing and tearing, affect the normal operation of desulfurization, and in current existing production technology, tank place, rotary atomization device slurries entrance top only arranges together simple plane filter, filtering accuracy is limited, in sweetening process, occur that main shaft temperature raises rapidly, equipment uses in the short period and occurs that the situations such as heavy wear often cause because the filter filtering accuracy in the tank of top is not enough.In addition, when the filter screen in existing filter plant is cleared up, must first desulphurization plant be shut down and can be cleared up.

Summary of the invention

The object of this invention is to provide one can Hand scarf rotating spraying slurries fine filtering device; it can realize three-stage filtration to desulfurization slurry; thoroughly prevent that the solid particulate matter carrying in desulfurization slurry from entering rotary atomization device; when filter screen is cleared up; can realize Hand scarf, not need desulphurization plant to shut down.

The present invention for achieving the above object, be achieved through the following technical solutions: comprise top tank and smart filter pocket, in essence filter pocket, longitudinal screen pipe is installed, longitudinally screen pipe sidewall is communicated with top pot sidewall by transverse tube, under the transverse tube mouth of pipe in the tank of top, edge is more than or equal to 500mm apart from the distance H of tank bottom surface, top, transverse tube mouth of pipe both sides in the tank of top arrange spacing slot, spacing slot bottom arranges spacing supporting plate, filter is installed in spacing slot, filter is made up of screen pack, when contacting with spacing supporting plate, filter bottom the mouth of pipe of transverse tube can be covered, longitudinally in screen pipe, truncated cone shape filtering bodies is installed, bottom surface and the sidewall of truncated cone shape filtering bodies are screen pack, longitudinally screen pipe bottom arranges spacing ring, the internal diameter of spacing ring is less than truncated cone shape filtering bodies, essence filter pocket bottom arranges grout outlet.Filter is connected with the first handle, when filter bottom contacts with spacing supporting plate, the height on the first handle top is higher than the height on spacing slot top, truncated cone shape filtering bodies is connected with the second handle, and when truncated cone shape filtering bodies sidewall and spacing ring closely cooperate, the height on the second handle top is higher than the height on longitudinal screen pipe top.Described filter is arc filter.

The invention has the advantages that: can realize three-stage filtration to desulfurization slurry; thoroughly prevent that the solid particulate matter carrying in desulfurization slurry from entering rotary atomization device; be conducive to extend the service life of rotary spraying equipment; when filter screen is cleared up; can realize Hand scarf; do not need desulphurization plant to shut down, be conducive to enhance productivity.

Accompanying drawing explanation

Fig. 1 is structural representation of the present invention;

Fig. 2 is the plan structure schematic diagram of Fig. 1.

The specific embodiment

One of the present invention can comprise top tank 1 and smart filter pocket 2 by Hand scarf rotating spraying slurries fine filtering device, the longitudinal screen pipe 3 of the essence interior installation of filter pocket 2, longitudinally screen pipe 3 sidewalls are communicated with top tank 1 sidewall by transverse tube 4, under transverse tube 4 mouths of pipe in top tank 1, edge is more than or equal to 500mm apart from the distance H of top tank 1 bottom surface, transverse tube 4 mouth of pipe both sides in top tank 1 arrange spacing slot 5, spacing slot 5 bottoms arrange spacing supporting plate 6, the interior installation filter 7 of spacing slot 5, filter 7 is made up of screen pack, when contacting with spacing supporting plate 6, filter 7 bottoms the mouth of pipe of transverse tube 4 can be covered, the longitudinally interior installation truncated cone shape of screen pipe 3 filtering bodies 8, bottom surface and the sidewall of truncated cone shape filtering bodies 8 are screen pack, longitudinally screen pipe 3 bottoms arrange spacing ring 9, the internal diameter of spacing ring 9 is less than truncated cone shape filtering bodies 8, essence filter pocket 2 bottoms arrange grout outlet 10.Desulfurization slurry enters after top tank 1, in top tank 1, complete first order sedimentation and filtration, large particulate matter in desulfurization slurry is deposited on the bottom of top tank 1, when slurries in top tank 1 overflow from transverse tube 4, realizing the second level through filter 7 filters, solid particulate matter in desulfurization slurry is intercepted in top tank 1, desulfurization slurry flows into longitudinal screen pipe 3 from transverse tube 4, realize after the third level is filtered and enter smart filter pocket 2 through the truncated cone shape filtering bodies 8 of longitudinal screen pipe 3 bottoms, truncated cone shape filtering bodies 8 stops a small amount of solid particulate matter residual in desulfurization slurry, because bottom surface and the sidewall of truncated cone shape filtering bodies 8 are filter screen, even if therefore solid particulate matter is deposited in truncated cone shape filtering bodies 8, as long as the solid particulate matter thickness of deposition is no more than the height of truncated cone shape filtering bodies 8 and just can exert an influence to the circulation of slurries and filtration, the essence grout outlet 10 of filter pocket 2 and the slurries entrance of rotary atomizer are connected, desulfurization slurry after essence filter is sent in rotary atomizer.The present invention can realize three-stage filtration to desulfurization slurry, thoroughly prevents that the solid particulate matter carrying in desulfurization slurry from entering rotary atomization device, is conducive to extend the service life of rotary spraying equipment.Need clear up filter 7 and truncated cone shape filtering bodies 8 time; filter 7 and a screen pack of truncated cone shape filtering bodies 8 independent taking-ups can be cleared up; in scale removal process owing to there being the still onset of another screen pack; therefore can not produce large impact to the integral filter effect of filter; after cleaning out, the screen pack of taking-up is reinstalled, then take out another screen pack and clear up; the present invention does not need desulphurization plant to shut down in the time of cleaning screen pack, is conducive to enhance productivity.

The present invention is for the ease of picking and placeing filter 7 and the first handle 11, can adopt following structure: filter 7 is connected with the first handle 11, when filter 7 bottoms contact with spacing supporting plate 6, the height on the first handle 11 tops is higher than the height on spacing slot 5 tops, truncated cone shape filtering bodies 8 is connected with the second handle 12, and when truncated cone shape filtering bodies 8 sidewalls and spacing ring 9 closely cooperate, the height on the second handle 12 tops is higher than the height on longitudinal screen pipe 3 tops.This structure can make operating personnel from top tank top, filter 7 and the first handle 11 be taken out and be put back to easily, and fetching process operating personnel can not contact with desulfurization slurry.

The present invention is in order to increase the laminating degree of filter 7 and top tank 1 sidewall, prevent that the slit source between filter 7 and top tank 1 from crossing solid particulate matter, filter 7 can be made to arc filter, arcwall face can be better and the 1 inwall laminating of top tank, reduces slit source between filter 7 and top tank 1 and cross the possibility of solid particulate matter.

Claims (3)

1. One kind can Hand scarf rotating spraying slurries fine filtering device, it is characterized in that: comprise top tank (1) and smart filter pocket (2), longitudinal screen pipe (3) is installed in essence filter pocket (2), longitudinally screen pipe (3) sidewall is communicated with top tank (1) sidewall by transverse tube (4), under transverse tube (4) mouth of pipe in top tank (1), edge is more than or equal to 500mm apart from the distance H of top tank (1) bottom surface, transverse tube (4) mouth of pipe both sides in top tank (1) arrange spacing slot (5), spacing slot (5) bottom arranges spacing supporting plate (6), filter (7) is installed in spacing slot (5), filter (7) is made up of screen pack, when contacting with spacing supporting plate (6), filter (7) bottom the mouth of pipe of transverse tube (4) can be covered, longitudinally in screen pipe (3), truncated cone shape filtering bodies (8) is installed, bottom surface and the sidewall of truncated cone shape filtering bodies (8) are screen pack, longitudinally screen pipe (3) bottom arranges spacing ring (9), the internal diameter of spacing ring (9) is less than truncated cone shape filtering bodies (8), essence filter pocket (2) bottom arranges grout outlet (10).
2. 2. one according to claim 1 can Hand scarf rotating spraying slurries fine filtering device, it is characterized in that: filter (7) is connected with the first handle (11), when filter (7) bottom contacts with spacing supporting plate (6), the height on the first handle (11) top is higher than the height on spacing slot (5) top, truncated cone shape filtering bodies (8) is connected with the second handle (12), and when truncated cone shape filtering bodies (8) sidewall and spacing ring (9) closely cooperate, the height on the second handle (12) top is higher than the height on longitudinal screen pipe (3) top.
3. 3. one according to claim 1 can Hand scarf rotating spraying slurries fine filtering device, it is characterized in that: described filter (7) is arc filter.

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