CN220836064U - Alternating electromagnetic force dust capturing type system - Google Patents

Abstract

The utility model relates to an alternating electromagnetic force dust capturing system which comprises a flue gas inlet, a flue wall, a flue gas outlet, a cleaning tank, a heating and drying assembly, steel wire colloidal particles, a steel wire colloidal particle outlet, a double-layer mesh grid, a steel wire colloidal particle spiral magnetic field assembly, a steel wire colloidal particle collecting magnetic field assembly and a flue gas guide plate, wherein the flue gas inlet is communicated with the flue gas wall; the double-layer reticular grille is arranged at the top of the flue wall, and the flue gas outlet and the steel wire colloidal particle outlet are both positioned above the double-layer reticular grille; the number of the steel wire colloidal particle spiral magnetic field assemblies is multiple, and each steel wire colloidal particle spiral magnetic field assembly is distributed around the flue wall from top to bottom to jointly generate magnetic field force for guiding the steel wire colloidal particles to move from top to bottom in a spiral line; the steel wire colloidal particle collecting magnetic field assembly is positioned at the bottom of the flue wall and communicated with the cleaning pool through a pipeline and used for generating magnetic field force towards the pipeline. Compared with the prior art, the utility model has the advantages of high dust removal efficiency, automatic circulation treatment realization, multiple dust removal working conditions and the like.

Description

Alternating electromagnetic force dust capturing type system

Technical Field

The utility model relates to the field of dust capturing equipment, in particular to an alternating electromagnetic force dust capturing system.

Background

The combustion of coal produces a large amount of dust particles, and the particle size of dust particles to be removed is generally 100 to 0.01 μm. Dust particles of 10 μm or more are easy to separate, but dust particles of 0.1 to 10 μm in size, particularly fine dust particles of 1 μm or less are difficult to separate, and are the main research scope at present.

The technology of applying the magnetic field to dust removal at present mainly comprises an electromagnetic dust removal technology and a magnetic separation technology. The electromagnetic dust removal technology is based on the electric drift theory of charged particles, and is used for loading magnetic fields in different directions to obtain higher purification efficiency when electromagnetic electrostatic dust removal air is purified.

Because the electromagnetic dust removal technology is used for passively adsorbing dust, the magnetic separation technology has too high conditions for whether the dust has magnetic requirements.

In this regard, the utility model with publication number CN108816513A discloses a multistage alternating capture type magnetic dust collection system, a multistage alternating electromagnetic zone is uniformly distributed around the flue wall, the multistage alternating electromagnetic zone is connected with a magnetic steel body distribution system, the magnetic steel body distribution system distributes magnetic steel bodies to the multistage alternating electromagnetic zone through each stage magnetic steel body inlet regulating valve, and a magnetic steel body intermediate bin storage tank is arranged at the bottom of the flue wall; the bottom of the storage tank in the middle of the magnetic steel body is connected with a magnetic steel body cleaning area, the bottom of the magnetic steel body cleaning area is provided with a heating and drying area and is connected with a magnetic steel body distribution system, a flue gas inlet is arranged on a branch pipeline between the bottom of a flue wall and a storage tank in the middle of the magnetic steel body, flue gas flows from bottom to top after entering the branch pipeline through the flue gas inlet, and after fully contacting with the magnetic steel body, dust adheres to the magnetic steel body and is discharged into the atmosphere from a flue gas outlet on the upper part of the flue wall.

According to the scheme, the multistage alternating electromagnetic area is arranged, and the magnetic steel body can be suspended in the multistage alternating magnetic field area in a manner of controlling magnetic field force, so that dust is captured in the magnetic field area; when dust captured by the magnetic steel bodies in the multistage alternating electromagnetic region tends to be saturated, the flue gas inlet regulating valve is closed, so that the magnetic steel bodies are collected for treatment. The dust catching condition of the magnetic steel body needs to be noticed at any time in the dust catching process, the flue gas inlet regulating valve is controlled in real time, time and labor are wasted, the dust catching effect depends on the attention condition of the magnetic steel body, and the effect cannot be guaranteed.

Disclosure of utility model

The utility model aims to overcome the defects that the prior art needs to pay attention to dust capturing conditions of a magnetic steel body at any time and wastes time and labor, and provides an alternating electromagnetic force dust capturing system.

The aim of the utility model can be achieved by the following technical scheme:

The alternating electromagnetic force dust capturing system comprises a flue gas inlet, a flue gas wall, a flue gas outlet, a cleaning tank, a heating drying assembly, steel wire colloidal particles, a steel wire colloidal particle outlet, a double-layer mesh grid, a steel wire colloidal particle spiral magnetic field assembly, a steel wire colloidal particle collecting magnetic field assembly and a flue gas guide plate;

The double-layer reticular grille is arranged at the top of the flue wall, and the flue gas outlet and the steel wire colloidal particle outlet are both positioned above the double-layer reticular grille; the number of the steel wire colloidal particle spiral magnetic field assemblies is multiple, the steel wire colloidal particle spiral magnetic field assemblies are distributed around the flue wall from top to bottom, and magnetic field force for guiding the steel wire colloidal particles to move from top to bottom in a spiral line is generated together; the steel wire colloidal particle collecting magnetic field assembly is positioned at the bottom of the flue wall and communicated with the cleaning pool through a pipeline and used for generating magnetic field force towards the pipeline; the flue gas guide plate surrounds the outer side of the flue gas inlet.

Further, the wire colloidal particle spiral magnetic field assembly is a magnetic field assembly for generating magnetic field force in the horizontal direction, and two adjacent wire colloidal particle spiral magnetic field assemblies are opposite in position in the horizontal direction and are at different heights in the vertical direction and respectively generate magnetic field force opposite in the horizontal direction.

Further, the flue wall is uniformly divided into a plurality of subareas along the circumferential direction, and each wire colloidal particle spiral magnetic field assembly is respectively positioned in a half area of the corresponding subarea.

Further, the system further comprises a fan which is connected with the wire colloidal particle outlet and the heating and drying assembly through pipelines respectively, and the output end of the fan faces the wire colloidal particle outlet.

Further, the heating and drying assembly comprises a hot air port and a vibrating grid leakage net, and the hot air port faces the vibrating grid leakage net and the output end of the fan.

Further, the double layer mesh grid comprises two layers of mesh grids arranged in staggered manner.

Further, the steel wire colloidal particle is of a spherical structure and comprises an inner core and steel wires wrapped on the outer side of the inner core, and the inner core is made of heat-resistant materials.

Further, the flue gas outlet is positioned at the bottom of the flue wall, and the flue gas guide plate is a structure for guiding gas to flow in a swirling manner.

Further, the system also comprises a stirring device, and the output end of the stirring device is positioned in the cleaning tank.

Further, the flue gas output by the flue gas inlet flows from bottom to top in a cyclone shape, the steel wire colloidal particles released by the steel wire colloidal particle outlet fall into the double-layer mesh grid, fall from top to bottom through the double-layer mesh grid, horizontally deviate by the magnetic field force generated by the spiral magnetic field component of each steel wire colloidal particle in the falling process, move integrally in a spiral line from top to bottom, are finally attracted by the magnetic field force of the magnetic field component collected by the steel wire colloidal particles, and enter the cleaning tank.

Compared with the prior art, the utility model has the following advantages:

(1) The novel capturing type magnetic field dust removing system adopts a mode of combining magnetic fields, opens up a new dust removing mode, makes up for the traditional adoption of electrostatic dust removing and bag type passive dust removing, and particularly guides the flue gas to flow from bottom to top in a swirling mode through the flue gas guide plate; the steel wire colloidal particles are adopted to actively capture dust from top to bottom, and the whole steel wire colloidal particles are guided to move from top to bottom in a spiral line by controlling a magnetic field, so that the steel wire colloidal particles are fully mixed with flue gas, and dust removal is realized;

The scheme can flexibly adjust the motion trail of the steel wire colloidal particles in the flue by controlling the magnetic field, is more widely applicable to industries and conditions, can adjust the steel ball colloidal particles and the magnetic field under different conditions, and is applicable to various working conditions.

(2) According to the utility model, the steel wire colloidal particles are collected at the bottom of the flue through the magnetic field, and the steel wire colloidal particles are connected to a steel wire colloidal particle outlet by matching with the heating and drying assembly and the fan after cleaning treatment, so that the steel wire colloidal particles can be recycled.

Drawings

FIG. 1 is a schematic diagram of an alternating electromagnetic force dust trapping system according to an embodiment of the present utility model;

FIG. 2 is a top view of a structure within a flue wall provided in an embodiment of the present utility model;

Fig. 3 is a schematic structural view of a wire rope pellet according to an embodiment of the present utility model;

In the figure, 1, a flue gas inlet, 2, a wire colloidal particle spiral magnetic field assembly, 3, wire colloidal particles, 301, an inner core, 302, wires, 4, a double-layer net-shaped grid, 5, a flue gas outlet, 6, a wire colloidal particle collecting magnetic field assembly, 7, a flue gas guide plate, 8, a cleaning tank, 9, a stirring device, 10, a heating and drying assembly, 11, a fan, 12 and a wire colloidal particle outlet.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, are merely for convenience of describing the present utility model and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present utility model.

It should be noted that the terms "horizontal," "vertical," and the like do not denote a requirement that the component be absolutely horizontal or overhang, but may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

Example 1

As shown in fig. 1, the embodiment provides an alternating electromagnetic force dust capturing system, which comprises a flue gas inlet 1, a flue wall 13, a flue gas outlet 5, a cleaning tank 8, a heating and drying assembly 10, steel wire colloidal particles 3, a steel wire colloidal particle outlet 12, a double-layer mesh grid 4, a steel wire colloidal particle spiral magnetic field assembly 2, a steel wire colloidal particle collecting magnetic field assembly 6 and a flue gas guide plate 7;

The double-layer reticular grating 4 is arranged at the top of the flue wall 13, and the flue gas outlet 5 and the steel wire colloidal particle outlet 12 are both positioned above the double-layer reticular grating 4; the number of the steel wire colloidal particle spiral magnetic field assemblies 2 is multiple, the steel wire colloidal particle spiral magnetic field assemblies 2 are distributed around the flue wall 13 from top to bottom, and magnetic field force for guiding the steel wire colloidal particles 3 to move from top to bottom in a spiral line is generated together; the steel wire colloidal particle collecting magnetic field assembly 6 is positioned at the bottom of the flue wall 13 and communicated with the cleaning tank 8 through a pipeline, and is used for generating magnetic field force towards the pipeline direction; the flue gas deflector 7 surrounds the outside of the flue gas inlet 1.

Preferably, in order to realize the automatic circulation treatment of the wire colloidal particle 3, the system further comprises a fan 11, wherein the fan 11 is connected with the wire colloidal particle outlet 12 and the heating and drying assembly 10 through pipelines respectively, and the output end of the fan 11 faces the wire colloidal particle outlet 12.

For the flue gas treatment process: after the generated rotational flow smoke fully contacts with the steel wire colloidal particles 3 from bottom to top, dust in the smoke adheres to the steel wire colloidal particles, and other smoke is discharged into the atmosphere from the smoke outlet 5.

The process flow for the wire billet 3 is as follows: under the pushing of hot air blowing, the wire colloidal particles 3 fall into the double-layer reticular grid 4 from the wire colloidal particle outlet 12 in an irregular manner, after being temporarily intercepted by the double-layer reticular grid 4, the initial state in the flue falls from the high position of the flue in a free falling manner, the wire colloidal particles 3 move from top to bottom under the action of the magnetic field force generated by the spiral magnetic field component 2 of the wire colloidal particles, the wire colloidal particles 3 subjected to the magnetic field force deviate in the horizontal direction and deviate again under the opposite magnetic field force in the next magnetic field area, finally move in a spiral line from top to bottom, fully contact with flue gas sent from bottom in a moving track, after dust particles in the flue gas are adhered, the wire colloidal particles are fully collected by the wire colloidal particle collecting magnetic field component 6 in the final stage of the flue, after the magnetic field is temporarily eliminated, the dust particles fall into the cleaning pool 8 from the tail of the flue, flowing water is filled in the cleaning pool, the dust particles carried on the wire colloidal particles 3 are separated from the surface of the flue under the action of the stirring device 9, the separated wire colloidal particles are sent into the drying area 10, the dried in the state of the hot air blowing, and the dried wire colloidal particles 3 are fully contacted with the dust particles in the high-power fan 11, and the flue gas is blown to the outlet 12.

Specifically, the wire-colloidal particle spiral magnetic field assembly 2 is a magnetic field assembly generating magnetic field force in the horizontal direction, and two adjacent wire-colloidal particle spiral magnetic field assemblies 2 are opposite in position in the horizontal direction and are at different heights in the vertical direction, and respectively generate magnetic field forces opposite in the horizontal direction.

The spiral magnetic field components 2 of the steel wire colloidal particles arranged on the flue wall 13 are arranged in multiple stages, the number and the magnetic field intensity of the arrangement are flexibly adjusted according to the height of the flue and the quality of the selected steel wire colloidal particles 3, and the number of the arrangement is generally 3 to 5 stages of magnetic field areas; the strong magnetic field is selected for the steel wire colloidal particle collecting magnetic field assembly 6 arranged at the tail part, so that all colloidal particles can be completely collected.

Preferably, the multi-stage arrangement of the wire colloidal particle spiral magnetic field assembly 2 is formed by an electromagnet, the strength of the wire colloidal particle spiral magnetic field assembly is kept the same except for the magnetic field at the bottom of the flue, the magnetic field at the bottom of the flue is periodically changed, and the height of the final wire colloidal particle collection magnetic field assembly 6 and the bottom of the flue is flexibly adjusted.

As a preferred embodiment, as shown in fig. 2, the magnetic fields are uniformly distributed around the flue wall, in order to make the motion state of the colloidal particles more ideal, the flue wall 13 is uniformly divided into a plurality of subareas along the circumferential direction by adopting a semi-distribution mode around the flue wall, and each wire colloidal particle spiral magnetic field assembly 2 is respectively positioned in a half area of the corresponding subarea, namely, only the half width of the flue wall is provided with the wire colloidal particle spiral magnetic field assembly.

As a preferred embodiment, in order to achieve that the wire colloidal particles 3 can uniformly enter the flue to perform dust adsorption on the flue gas, the wire colloidal particle outlets 12 are arranged around the flue outlet, and a plurality of openings are arranged in a four-corner arrangement mode, so that the wire colloidal particles 3 can uniformly enter the flue.

The double-layer mesh grid 4 comprises two layers of mesh grids arranged in staggered manner, and the double-layer mesh grid 4 is arranged below the flue gas outlet 5.

As shown in fig. 3, the wire colloidal particle 3 has a spherical structure, and comprises an inner core 301 and a wire 302 wrapped outside the inner core 301, wherein the inner core 301 is made of a heat-resistant material such as quartz, the heat-resistant material can be a certain gravity, and the outer wire is a wrapped wire with uniform gaps and uniformly wrapped.

The flue gas outlet 5 is positioned at the bottom of the flue wall 13, and the flue gas guide plate 7 is a structure for guiding gas to flow in a rotary flow mode.

As a preferred embodiment, to achieve an efficient separation of dust and wire colloidal particles in the cleaning tank 8, the system further comprises a stirring device 9, the output end of the stirring device 9 being located in the cleaning tank 8. The steel wire colloidal particles in the cleaning tank 8 are separated from dust under the action of a stirring device due to the centrifugal force, the dust forms particles at the bottom of the cleaning tank to be settled, and the steel wire colloidal particles are slowly drained through a mesh conveying belt and are sent into the heating and drying assembly 10 for drying.

In this embodiment, an inlet is arranged at the upper part of the cleaning tank 8, an outlet is arranged at the bottom of the opposite side, and a stirring device 9 is arranged right above the cleaning tank, so that the steel wire colloidal particles 3 can sufficiently break out and adhere to dust in the cleaning tank 8.

Optionally, the heating and drying assembly 10 includes a hot air port and a vibrating grid screen, the hot air port facing the vibrating grid screen and the output end of the fan 11; the heating and drying assembly 10 shakes off water drops through the vibrating grid screen, and the fed hot air sufficiently dries the wire colloidal particles 12.

The foregoing describes in detail preferred embodiments of the present utility model. It should be understood that numerous modifications and variations can be made in accordance with the concepts of the utility model by one of ordinary skill in the art without undue burden. Therefore, all technical solutions which can be obtained by logic analysis, reasoning or limited experiments based on the prior art by the person skilled in the art according to the inventive concept shall be within the scope of protection defined by the claims.

Claims (10)

1. An alternating electromagnetic force dust capturing system comprises a flue gas inlet (1), a flue wall (13), a flue gas outlet (5), a cleaning tank (8) and a heating and drying assembly (10), and is characterized by further comprising steel wire colloidal particles (3), a steel wire colloidal particle outlet (12), a double-layer mesh grid (4), a steel wire colloidal particle spiral magnetic field assembly (2), a steel wire colloidal particle collecting magnetic field assembly (6) and a flue gas guide plate (7);

The double-layer reticular grating (4) is arranged at the top of the flue wall (13), and the flue gas outlet (5) and the steel wire colloidal particle outlet (12) are both positioned above the double-layer reticular grating (4); the number of the steel wire colloidal particle spiral magnetic field assemblies (2) is multiple, the steel wire colloidal particle spiral magnetic field assemblies (2) are distributed around the flue wall (13) from top to bottom, and magnetic field force for guiding the steel wire colloidal particles (3) to move in a spiral line from top to bottom is generated together; the steel wire colloidal particle collecting magnetic field assembly (6) is positioned at the bottom of the flue wall (13) and is communicated with the cleaning tank (8) through a pipeline, and is used for generating magnetic field force towards the pipeline direction; the flue gas guide plate (7) surrounds the outer side of the flue gas inlet (1).

2. An alternating electromagnetic force dust catching system according to claim 1, characterized in that the wire-colloidal particle spiral magnetic field assembly (2) is a magnetic field assembly generating magnetic field force in a horizontal direction, and that two adjacent wire-colloidal particle spiral magnetic field assemblies (2) are positioned opposite in the horizontal direction, are at different heights in the vertical direction, and respectively generate magnetic field force opposite in the horizontal direction.

3. An alternating electromagnetic force dust catching system as claimed in claim 2, characterized in that the flue wall (13) is divided uniformly in the circumferential direction into a plurality of sub-areas, each wire-colloidal spiral magnetic field assembly (2) being located in a half area of the corresponding sub-area.

4. An alternating electromagnetic force dust catching system according to claim 1, characterized in that the system further comprises a fan (11), the fan (11) being connected to the wire colloidal particle outlet (12) and the heating and drying assembly (10) by pipes, respectively, the output end of the fan (11) being directed towards the wire colloidal particle outlet (12).

5. An alternating electromagnetic force dust catching system as claimed in claim 4, characterized in that the heating and drying assembly (10) comprises a hot air port and a vibrating grid screen, the hot air port being directed towards the vibrating grid screen and the output of a fan (11).

6. An alternating electromagnetic force dust catching system according to claim 1, characterized in that the double layer mesh grid (4) comprises two layers of mesh grids arranged in staggered manner.

7. An alternating electromagnetic force dust catching system according to claim 1, characterized in that the wire colloidal particle (3) is of a spherical structure, comprising an inner core (301) and a wire (302) wrapped outside the inner core (301), the inner core (301) being of a heat resistant material.

8. An alternating electromagnetic force dust catching system according to claim 1, characterized in that the flue gas outlet (5) is located at the bottom of the flue wall (13), and the flue gas deflector (7) is of a structure guiding the gas to flow in a swirl-like manner.

9. An alternating electromagnetic force dust catching system as claimed in claim 1, characterized in that the system further comprises stirring means (9), the output of which stirring means (9) is located in the cleaning tank (8).

10. The alternating electromagnetic force dust capturing system according to claim 1, wherein the flue gas output by the flue gas inlet (1) flows from bottom to top in a cyclone shape, the wire colloidal particles (3) released by the wire colloidal particle outlet (12) fall into the double-layer mesh grid (4), fall from top to bottom through the double-layer mesh grid (4), are horizontally offset by magnetic field force generated by each wire colloidal particle spiral magnetic field assembly (2) in the falling process, move from top to bottom in a spiral shape line integrally, are finally attracted by the magnetic field force of the wire colloidal particle collection magnetic field assembly (6), and enter the cleaning tank (8).