CN213643635U - Novel high-efficient dust removal defogging absorption tower - Google Patents

Abstract

The utility model provides a novel high-efficient dust removal defogging absorption tower relates to the flue gas treatment technology field to solve the poor technical problem of defogging dust removal effect that exists among the prior art. The device's tower body top and bottom are equipped with exhanst gas outlet and import, from the top down is equipped with defogging dust collector, even flue gas in proper order and as the entry grid of overhauing the platform, spray the mechanism in the tower body, treat that the purification flue gas enters into the tower body through the exhanst gas inlet, in proper order through spraying mechanism, entry grid, defogging dust collector handle the back along exhanst gas outlet discharge. This device accessible entry grid is even the flue gas, removes partial droplet and dust particle in the flue gas in advance and conveniently overhauls defogging dust collector as overhauing the platform, has effectively improved the defogging effect of absorption tower, reduces the emission of smoke and dust.

Description

Novel high-efficient dust removal defogging absorption tower

Technical Field

The utility model belongs to the technical field of the flue gas treatment technique and specifically relates to a novel high-efficient dust removal defogging absorption tower is related to.

Background

The national environmental protection situation is increasingly severe, in order to improve the prevention, early warning and coping capability of heavily polluted weather and ensure the health of people and the stability of society, various emergency plans are respectively issued by governments in various places aiming at the heavily polluted weather, and the emission reduction of pollutants respectively reaches 10%, 20% and 30% when the coal-fired unit is required to perform early warning in yellow, orange and red.

The absorption tower is equipment for realizing absorption operation, the gas-liquid two-phase flow mode in the tower generally adopts countercurrent operation, the absorbent flows from top to bottom by adding the top of the tower, the absorbent contacts with the gas flowing from bottom to top, the liquid absorbing the absorbent is discharged from the bottom of the tower, the purified gas is discharged from the top of the tower, the gas flow in the absorption tower after being sprayed is unstable, the utilization rate of the demisting and dedusting device is low, and the resistance is large.

Disclosure of Invention

An object of the utility model is to provide a novel high-efficient dust removal defogging absorption tower to solve the equipment defogging dust collection efficiency that exists among the prior art low, the poor technical problem of effect. The utility model provides a great deal of technological effect (simple structure, with low costs, convenient to use) that preferred technical scheme among a great deal of technical scheme can produce see the explanation below in detail.

The utility model provides a pair of novel high-efficient dust removal defogging absorption tower, comprising a tower body, the tower body top is equipped with the exhanst gas outlet, the tower body lower part is equipped with the flue gas import, from the bottom up has set gradually in the tower body and has sprayed inlet grid, the defogging dust collector that mechanism, even flue gas were used, treats that the purification flue gas passes through the flue gas import and gets into in the tower body, follow after mechanism, inlet grid, the processing of defogging dust collector in proper order the exhanst gas outlet is discharged.

Preferably, the inlet grille is a glass fiber reinforced plastic grille to serve as an overhaul platform to facilitate overhaul of the defogging and dedusting device.

Preferably, an airflow grille is further arranged in the tower body and arranged on the lower side of the spraying mechanism so as to enhance the uniform distribution of the flue gas.

Preferably, the spraying mechanism comprises a plurality of layers of spraying equipment, the distance between the plurality of layers of spraying equipment is gradually increased from bottom to top, and the distance between the previous spraying equipment is 1.5 times of the distance between the next spraying equipment.

Preferably, the spraying equipment comprises a plurality of spraying pipes arranged in parallel, spray heads are arranged on the spraying pipes at intervals, and adjacent spray heads are arranged in parallel.

Preferably, the defogging and dedusting device comprises a barrel, a smoke inlet and a smoke outlet are respectively formed in the lower end face and the upper side wall of the barrel, a plurality of honeycomb type shells which are connected in parallel are arranged in the middle of an inner cavity of the barrel, the axis of each shell is parallel to that of the barrel, a cyclone type dust collector is arranged on the lower portion of the inner cavity of each shell, and an electrode type wet electric dust collector is arranged on the upper portion of the inner cavity of each shell.

Preferably, the cyclone dust collector includes the shower, install and can make the flue gas produce rotatory whirl guide vane, be located along shower circumference whirl guide vane top and intercommunication the shower nozzle of shower, electrode type wet electric dust collector including install in cathode bar in the casing just cathode bar with the casing coaxial line, evenly distributed has the directional outside cathode needle of a plurality of levels on the cathode bar, the upper end of cathode bar is fixed in on the cathode frame in order to hang in the casing.

The utility model provides a pair of novel high-efficient dust removal defogging absorption tower, lie in with prior art's difference, defogging dust collector with spray and be provided with the entry grid between the mechanism to make the flue gas after spraying get into defogging dust collector in the defogging dust collector after the flue gas evenly spreads the flue gas when the big thick liquid granule of its inside branch and droplet of entrance grid pre-elimination. The device can effectively reduce the smoke discharge amount of equipment.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic view of the overall structure of a novel efficient dedusting and demisting absorption tower;

FIG. 2 is a schematic view of the inlet grill;

fig. 3 is a front view of the honeycomb housing.

In the figure: 1. a demisting and dedusting device; 2. an inlet grille; 3. a spraying mechanism; 4. an airflow grille; 5. a cyclone dust collector; 6. an electrode type wet electric dust collector.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

The utility model provides a novel high-efficient dust removal defogging absorption tower, as shown in fig. 1-3, novel high-efficient dust removal defogging absorption tower includes the tower body, the top of tower body is equipped with exhanst gas outlet, the lower part of tower body is equipped with the flue gas import, be provided with in the tower body and be located between exhanst gas outlet and the flue gas import and along defogging dust collector 1 that tower body from the top down set gradually, entry grid 2, spray mechanism 3 and air current grid 4, so that treat that the purification flue gas passes through in the flue gas import enters into the tower body, pass through air current grid 4 in proper order, spray mechanism 3, entry grid 2, the exhanst gas outlet along the tower body after defogging dust collector.

As optional implementation mode, the inlet grille is made of high-strength glass fiber reinforced plastic materials, so that the inlet grille can be used as an overhaul platform to facilitate overhaul of the defogging and dedusting device, and the commissioning rate of the wet electric dehumidification is guaranteed. The spraying mechanism 3 comprises a plurality of layers of spraying equipment, the distance between the plurality of layers of spraying equipment is gradually increased from bottom to top, and the distance between the previous spraying equipment is 1.5 times of the distance between the next spraying equipment. The spraying equipment comprises a plurality of spraying pipes which are arranged in the tower body in parallel and spray heads communicated with the spraying pipes, and the spray heads are arranged at intervals along the axial direction of the peripheral wall of each spraying pipe.

As an alternative embodiment, the inlet grille 2 and the airflow grille 4 each include a plurality of layers of grille plates sequentially laid in a direction of the flow of the flue gas, and each grille plate includes a plurality of grille bars arranged in a criss-cross manner to uniformly divide the grille plates into a plurality of cells. The adjacent spray heads are arranged on the peripheral wall of the spraying pipe at an angle and are parallel to each other at intervals.

As an optional implementation mode, the defogging and dedusting device comprises a barrel body with an inner cavity, a smoke inlet and a smoke outlet which are communicated with the inner cavity are respectively formed in the lower end face and the upper side wall of the barrel body, a plurality of electrode tubes which are connected in parallel and are honeycomb type shells are arranged in the middle of the inner cavity of the barrel body, the axis of each honeycomb type shell is parallel to that of the barrel body, the opening of the upper end face of each honeycomb type shell is communicated with the smoke outlet of the inner cavity, the opening of the lower end face of each honeycomb type shell is communicated with the smoke inlet of the inner cavity, a cyclone type dust collector 5 is installed on the lower portion of the inner cavity of each honeycomb type shell, and an electrode type wet electric dust.

The cyclone dust collector 5 comprises a spray pipe, cyclone guide blades (obliquely arranged with the spray pipe) which are fixed on the peripheral wall of the spray pipe at intervals along the circumferential direction of the spray pipe and can make the flue gas rotate, and a spray head which is positioned above the cyclone guide blades and is communicated with the spray pipe. The electrode type wet electric dust collector 6 comprises a cathode bar arranged in the honeycomb shell, wherein the cathode bar and the honeycomb shell are coaxial, a plurality of cathode needles in the horizontal pointing outer side are uniformly distributed on the cathode bar, and the upper end of the cathode bar is connected with the cylinder in an inserting mode. The upper end of the cathode bar is fixed on the cathode frame to be suspended in the shell, the cathode frame is installed on the lower portion of the inner cavity of the honeycomb shell, and the cathode bar is located above the cyclone dust collector. Dust removal defogging device mainly used wet flue gas desulfurization, when the defogging, pollutants such as dust, PM10, PM2.5, poisonous heavy metal and sulfur trioxide in can also the desorption flue gas. The demisting device has the characteristics of high demisting efficiency, smaller occupied space and low manufacturing cost. Compact structure, low energy consumption and high dust removal efficiency.

The absorption tower is used for ultra-clean emission of flue gas of a thermal power plant, when boiler load is high, the cyclone guide blades of the honeycomb shell guide high-speed flue gas tangential cyclone, the top of the honeycomb shell is provided with a liquid blocking ring or is arranged on the inner top surface of a cylinder corresponding to the upper opening of the honeycomb shell, the liquid blocking ring is used for blocking fine liquid drops which are separated by the flue gas and rise along the pipe wall, and the liquid drops are condensed after being blocked to form large liquid drops and fall downwards along the pipe wall under the action of gravity. Under the load, if the wet electric dust collector at the upper part of the wet electric dust collector is started, lower discharge data can be obtained; when the load of a boiler is low and the dust removal efficiency of the inlet cyclone device cannot be achieved, a high-frequency power supply of the device is started, after smoke enters the wet electric dust remover, particles and electrons of water drops in the smoke carry negative ions, the particles and fog drops with the negative ions are attracted to a dust collecting electrode with positive electricity, and after the fog drops and the particles are attracted to the dust collecting electrode, the particles are flushed by spraying water to drop into a desulfurizing tower below.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (7)

1. The utility model provides a novel high-efficient dust removal defogging absorption tower, a serial communication port, including the tower body, the tower body top is equipped with the exhanst gas outlet, the tower body lower part is equipped with the flue gas import, a serial communication port, from the bottom up has set gradually in the tower body and has sprayed inlet grid, the defogging dust collector that mechanism, even flue gas were used, treats that the purification flue gas passes through the flue gas import and gets into in the tower body, follow after spraying mechanism, inlet grid, defogging dust collector in proper order the exhanst gas outlet is discharged.

2. The tower of claim 1, wherein the inlet grille is a fiber reinforced plastic grille to serve as an inspection platform to facilitate the inspection of the de-misting and de-misting device.

3. The novel efficient dedusting and demisting absorption tower according to any one of claim 2, wherein the demisting and dedusting device comprises a cylinder, a smoke inlet and a smoke outlet are respectively formed in the lower end surface and the upper side wall of the cylinder, a plurality of shells which are connected in parallel are arranged in the middle of an inner cavity of the cylinder, the axes of the shells and the axis of the cylinder are parallel, a cyclone dust collector is arranged at the lower part of the inner cavity of the shell, and an electrode type wet electric dust collector is arranged at the upper part of the inner cavity of the shell.

4. The novel efficient dust-removing and mist-removing absorption tower as claimed in any one of claim 3, wherein the cyclone dust collector comprises a spray pipe, cyclone guide blades arranged along the circumferential direction of the spray pipe and capable of rotating the flue gas, and a nozzle positioned above the cyclone guide blades and communicated with the spray pipe, the electrode type wet electric dust collector comprises a cathode bar arranged in the casing and coaxial with the casing, a plurality of cathode pins horizontally pointing to the outside are uniformly distributed on the cathode bar, and the upper end of the cathode bar is fixed on the cathode frame to be suspended in the casing.

5. The tower as claimed in claim 2, wherein an airflow grille is further disposed in the tower body, the airflow grille is disposed under the spraying mechanism to enhance uniform distribution of the flue gas.

6. The tower of claim 5, wherein the spraying mechanism comprises a plurality of layers of spraying devices, the distance between the plurality of layers of spraying devices increases from bottom to top, and the distance between the previous spraying devices is 1.5 times the distance between the next spraying devices.

7. The tower as claimed in claim 6, wherein the spraying device comprises a plurality of spraying pipes connected in parallel, the spraying pipes are provided with nozzles at intervals, and adjacent nozzles are arranged in parallel.

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