CN111482019A - Closed gravity particle multistage separation dust remover - Google Patents

Abstract

The invention provides a closed gravity particle multistage separation dust remover which comprises a main body and a screening unit, wherein a dust removing air inlet and a dust removing air outlet are formed in the main body, so that dust removal and purification of materials can be realized. Meanwhile, the screening units are arranged in the main body, the screening units are multiple, and each screening unit can screen and separate materials with different particle sizes, so that grading of the materials is realized, and screening and purification of the materials can be performed again. The screening unit is also provided with an independent discharge pipe, and the classified materials can be independently output. The dust removal and classification device has the advantages of simple structure, compact and reasonable design, capability of simultaneously realizing dust removal and classification of materials by adopting one set of equipment, and very convenient use. The invention completely solves the problems of large occupied operation space, large equipment maintenance operation amount and the like in the prior art that the particle material treatment needs a plurality of sets of equipment for combined operation.

Description

Closed gravity particle multistage separation dust remover

Technical Field

The invention relates to the technical field of particle material treatment, in particular to a closed gravity particle multistage separation dust remover.

Background

In the prior art, the processing of the particulate materials generally includes dust removal and classification, and for the dust removal operation, the dust removal operation is realized by a gravity dust remover, that is, by utilizing the difference of the specific weight of the particulate materials and the dust, in the flowing air flow, the lighter dust can flow with the wind, and the heavier particulate materials directly fall down, so as to realize the dust removal. For classification operations, it is common to use a vibrating screen in conjunction with a particle classification apparatus, where the vibrating screen screens particles by converting mechanical energy into kinetic energy of the particles and moving the particles over a screen. The particle grade classification device performs particle grade separation when particles pass through different screen panels.

At present, the purpose of dust removal and particle classification is realized by the combined transportation of three sets of equipment, namely a gravity dust collector, a vibrating screen and particle classification equipment, and the combined transportation of the three sets of equipment causes high equipment construction cost, large purchase quantity, large electric energy use quantity, large occupied operation space of the equipment, large operation quantity and operation quantity of the equipment, and large equipment combined quantity.

Disclosure of Invention

In conclusion, how to solve the problems of large occupied operation space, large equipment maintenance operation amount and the like caused by the fact that a plurality of sets of equipment are required for processing the granular materials in the prior art, the method becomes a problem to be solved by technical personnel in the field.

In order to achieve the above purpose, the invention provides the following technical scheme:

the invention provides a closed gravity particle multistage separation dust remover, which comprises:

the device comprises a main body, a processing channel is arranged in the main body, a feeding port communicated with the processing channel is formed in the top of the main body, a discharging port communicated with the processing channel is formed in the bottom of the main body, a dedusting air inlet is formed in the lower part of the main body, a dedusting air outlet is formed in the upper part of the main body, and a counter-flow air channel is formed in the processing channel from the dedusting air inlet to the dedusting air outlet;

the screening unit, the screening unit set up in the processing passageway, the upper portion of screening unit is provided with the screen cloth, the sub-unit connection of screening unit has the discharging pipe, the end of discharging pipe set up in outside the main part, the warp the material that the screening unit was sieved by the discharging pipe is discharged, and all the other materials by the discharge gate is discharged.

Preferably, in the closed gravity particle multistage separation dust remover provided by the invention, the screen is a conical screen; there is a space between the sieving unit and the side wall of the main body enclosing the processing channel in the radial direction of the main body.

Preferably, in the closed gravity particle multistage separation dust remover provided by the invention, the screening unit is positioned in the countercurrent air duct, and a guide plate for guiding materials to the screen is arranged around the screen of the screening unit.

Preferably, in the closed gravity particle multistage separation dust remover provided by the invention, an aggregate funnel is arranged at the lower part of the screening unit, the discharge pipe is connected with the small-mouth end of the aggregate funnel, and the screen is arranged on the large-mouth end of the aggregate funnel.

Preferably, in the closed gravity particle multistage separation dust remover provided by the present invention, the screening units are provided in plurality and are sequentially arranged in the processing channel along the extending direction of the processing channel, and the screening grades of the screens and the bottom end outer edges of the screens in all the screening units in the direction from top to bottom are gradually increased.

Preferably, in the closed gravity particle multistage separation dust remover provided by the invention, a bulk material cone (17) for carrying out bulk material and preventing abrasion is arranged on the screening unit close to the feeding port.

Preferably, in the closed gravity particle multistage separation dust remover provided by the invention, a blanking pipe is arranged in the main body, the blanking pipe is arranged in the processing channel, one end of the blanking pipe faces the feeding port, and the other end of the blanking pipe is opposite to the screen of the screening unit close to the feeding port.

Preferably, in the closed gravity particle multistage separation dust remover provided by the invention, one end of the blanking pipe, which faces the screen, is of a reducing closing structure, and a gathering cover is sleeved outside the blanking pipe; the gathering cover is arranged in an extending mode relative to the end face of the blanking pipe in the direction of the screen and used for gathering the rebounding materials.

Preferably, in the closed gravity particle multistage separation dust remover provided by the invention, an annular pressure equalizing box is arranged on the dust removing air outlet, and an air exhaust pipe is connected with the pressure equalizing box.

Preferably, in the closed gravity particle multistage separation dust remover provided by the invention, an inlet air box is arranged on the dust removing air inlet, and an inlet air pipe is connected with the inlet air box.

Compared with the prior art, the method has the following beneficial effects:

the invention provides a closed gravity particle multistage separation dust remover which comprises a main body and a screening unit, wherein a dust removing air inlet and a dust removing air outlet are formed in the main body, so that dust removal and purification of materials can be realized. Meanwhile, the screening units are arranged in the main body, the screening units are multiple, and each screening unit can screen and separate materials with different particle sizes, so that grading of the materials is realized, and screening and purification of the materials can be performed again. The screening unit is also provided with an independent discharge pipe, and the classified materials can be independently output. The dust removal and classification device has the advantages of simple structure, compact and reasonable design, capability of simultaneously realizing dust removal and classification of materials by adopting one set of equipment, and very convenient use. Through the structural design, the problems of large occupied operation space, large equipment maintenance operation amount and the like caused by the fact that multiple sets of equipment are required for combined operation for treating granular materials in the prior art are completely solved.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. Wherein:

FIG. 1 is a schematic diagram of a closed gravity particle multistage separation dust collector according to an embodiment of the present invention.

In fig. 1, the correspondence between the component names and the reference numerals is:

the device comprises a main body 1, a treatment channel 2, a feeding port 3, a discharging port 4, a dedusting air inlet 5, a dedusting air outlet 6, a screen 7, a discharging pipe 8, an aggregate funnel 9, a guide plate 10, a guide plate gathering section 10a, a guide plate anti-rebound section 10b, a blanking pipe 11, a pressure equalizing box 12, an air draft air pipe 13, an inlet air box 14, an inlet air pipe 15, an inspection window 16, a bulk cone 17 and a gathering cover 18.

Detailed Description

The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings. The various examples are provided by way of explanation of the invention, and not limitation of the invention. In fact, it will be apparent to those skilled in the art that modifications and variations can be made in the present invention without departing from the scope or spirit thereof. For instance, features illustrated or described as part of one embodiment, can be used with another embodiment to yield a still further embodiment. It is therefore intended that the present invention encompass such modifications and variations as fall within the scope of the appended claims and equivalents thereof.

In the description of the present invention, the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are for convenience of description of the present invention only and do not require that the present invention must be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. The terms "connected" and "connected" used herein should be interpreted broadly, and may include, for example, a fixed connection or a detachable connection; they may be directly connected or indirectly connected through intermediate members, and specific meanings of the above terms will be understood by those skilled in the art as appropriate.

Referring to fig. 1, fig. 1 is a schematic structural diagram of a closed gravity particle multistage separation dust remover according to an embodiment of the present invention.

The invention provides a closed gravity particle multistage separation dust remover which is used for simultaneously realizing dust removal and classification of particle materials.

The method comprises the following steps:

first part, body 1

The main body 1 can be made into a shell-shaped structure by adopting a metal material, so that a relatively closed working space can be provided for dust removal and classification of materials.

In the using state, the main body 1 is vertically placed, the top of the main body is provided with a feeding port 3 for feeding materials, the bottom of the main body is provided with a discharging port 4, and the discharging port 4 is used for dedusting, purifying and outputting the residual materials after classification.

Set up a treatment channel 2 in main part 1 inside, like this, the material is gone into from pan feeding mouth 3 and is followed treatment channel 2 whereabouts and export from discharge gate 4 and discharging pipe 8, at the in-process of material through treatment channel 2, realizes dust removal and grading.

The invention adopts a mode of blowing air to the material to realize the separation of the material and dust impurities (dust), therefore, the invention is provided with a dedusting air inlet 5 and a dedusting air outlet 6 on the main body 1.

As can be seen from the above, the top of the main body 1 is provided with the feeding port 3, the bottom is provided with the discharging port 4, and the materials fall in the processing channel 2 from top to bottom under the action of gravity. In order to improve the dust removal efficiency and the dust removal effect, the invention blows air to the materials in a reverse blowing mode, therefore, in the invention, the lower part of the main body 1 is provided with the dust removal air inlet 5, the upper part of the main body 1 is provided with the dust removal air outlet 6, the dust removal air inlet 5 points to the direction of the dust removal air outlet 6, and a reverse air duct is formed in the processing channel 2.

The air flow for dust removal enters from a dust removal air inlet 5 (arranged at the end opposite to the material inlet 3), rises to a dust removal air outlet 6 along the processing channel 2 and is discharged, and the separation of the material and dust impurities is realized in the process of convection of the material and the dust removal air flow. After separation, the material continues to fall down for classification, and the dust is output out of the main body 1 along with the airflow.

The main body 1 of the invention is provided with a dust removal air inlet 5 and a dust removal air outlet 6, and when in use, a fan used in a matching way is required. In order to facilitate the access of the fan, the invention provides the following structure optimization: a plurality of dust removing air inlets 5 are arranged, all the dust removing air inlets 5 are arranged on the main body 1 at equal intervals around the axis of the processing channel 2, an inlet air box 14 is arranged on the dust removing air inlets 5, an inlet air pipe 15 is connected with the inlet air box 14, and air flow is buffered by the inlet air box 14, so that purified air flow can be uniformly blown into the main body 1, and the dust removing effect of materials is ensured; the dedusting air outlet 6 is provided with an annular pressure equalizing box 12, the pressure equalizing box 12 is connected with an exhaust air pipe 13, and the pressure equalizing box 12 uniformly exhausts air flow from the dedusting air outlet 6, so that the flow speed of the dedusting air flow in the processing channel 2 can be ensured, and the dedusting effect can be ensured.

An inlet air box 14 is arranged on the dedusting air inlet 5 by adopting a flange structure, and an inlet air pipe 15 is arranged on the inlet air box 14 by adopting a flange structure. Of course, the invention can also omit the inlet wind box 14 and install the inlet wind pipe 15 on the dedusting wind inlet 5 directly. Specifically, the blower is mounted by an inlet air duct 15.

The pressure equalizing box 12 is of an annular box structure, the pressure equalizing box 12 is installed on the dust removing air outlet 6, and air flow mixed with dust impurities can be uniformly drawn out of the main body 1 through the pressure equalizing box 12. An exhaust air pipe 13 is arranged on the pressure equalizing box 12 by adopting a flange structure, and a fan or a butt joint dust remover can be arranged on the exhaust air pipe 13. It should be noted that: the pressure equalizing box 12 is of an annular box structure, and an opening structure is arranged on the pressure equalizing box 12 and used for enabling air flow mixed with dust impurities to enter the pressure equalizing box 12.

In order to ensure the dust removal effect and realize multi-stage material distribution, the setting height of the shell is higher, so that the shell is convenient to produce, manufacture and transport and install in the shell, and the shell adopts a split type structure design. The main body 1 comprises a plurality of main body units, all the main body units are arranged in sequence along a straight line, and two adjacent main body units are connected through flanges. In actual use, when the air flow is reversely blown from bottom to top, reverse spaces of the air flow and blanking are required to be provided, namely the blanking sectional areas of the inlet, the outlet and the middle section are kept consistent.

According to the invention, the feeding port 3 is formed in the top of the shell, materials enter the shell from the feeding port 3 in the top of the shell, in order to guide and gather the input of the materials, the blanking pipe 11 is arranged in the main body 1, the blanking pipe 11 is arranged in the processing channel 2, one end of the blanking pipe faces the feeding port 3, the other end of the blanking pipe is opposite to the screen 7 of the screening unit close to the feeding port 3, the screening unit is arranged in the main body 1, screening and grading of the materials are realized by the screening unit, the screen 7 of the screening unit close to the feeding port 3 is opposite to one end of the blanking pipe 11, the materials can be directly guided onto the screen 7, and the first screening and grading of the materials are carried out.

The screen 7 is arranged on the screening unit, and when dust removing air flow passes through the space between the guide plate and the screen, particulate matters also flow through the space between the guide plate and the screen 7, so that a better dust removing effect is achieved by reverse flow.

In a preferred embodiment of the present invention, the down pipe 11 is arranged inside the main body 1, one end of which is connected to the main body 1 and the other end of which is arranged towards the screen of the upper first screening unit. In order to gather and merge the materials, one end of the blanking pipe 11 facing the screen is designed into a reducing closing structure, and the materials can be merged to the bulk cone 17 and then split as much as possible through the structure. Meanwhile, in order to avoid that the falling space of the material is reduced and the falling speed of the material is influenced because the falling pipe 11 is too close to the bulk cone 17, a certain distance is formed between the mouth of the falling pipe 11 and the bulk cone 17, and the material can be rebounded due to the impact of the material on the bulk cone 17 or the screen. In order to gather rebounding materials, the gathering cover 18 is sleeved on the blanking pipe 11, and the gathering cover 18 extends towards the direction of the screen relative to the end face of the blanking section and is used for gathering the rebounding materials. Due to the gathering cover 18, the rebounded materials can be gathered and gathered again to be screened through the screen.

Second part, screening unit

The screening unit is arranged in the processing channel 2 and can screen materials within a certain particle size range.

Specifically, the screening unit is similar to a cage structure, the upper part of the screening unit is provided with the screen 7, and the screen 7 adopts a cone structure or a circular truncated cone structure design, so that materials can smoothly flow through the screen 7 and can be screened when passing through the screen 7. The lower part of screening unit is provided with the funnel 9 that gathers materials, and the funnel 9 that gathers materials adopts the infundibulate structure, and screen cloth 7 sets up on the macrostoma end of the funnel 9 that gathers materials, and the osculum end of the funnel 9 that gathers materials is connected with discharging pipe 8, and discharging pipe 8 sets up in the lower part of screening unit, and discharging pipe 8's end sets up outside main part 1, and the material of being separated by screen cloth 7 can be collected by the funnel 9 that gathers materials, then exports through discharging pipe.

When the material removes dust and sieves the time, great granule material freely falls and is directly exported by discharge gate 4 behind a plurality of screening units, can directly connect material equipment in discharge gate 4 department, and the material of screening through the screening unit is shunted by discharging pipe 8, and the export output of discharging pipe 8 is little granule material, connects the material interface according to the grade or can directly connect the dust removal wind to carry to the holding tank body.

In order to protect the screen 7 (particularly the screen 7 close to the feeding port 3), the screening unit close to the feeding port 3 is provided with a bulk cone 17 for carrying out bulk cargo, the bulk cone 17 is arranged at the top of the screen 7, the screen 7 can be protected, and a certain bulk cargo effect can be achieved, so that materials can pass through the screen 7 in a mode close to the surface of the parallel screen 7, the impact of the materials on the screen 7 can be reduced, and the screen 7 can be protected.

In order to realize multi-stage material distribution, in the invention, the screening units are sequentially arranged in the processing channel 2 along the extending direction of the processing channel 2, the screening grades of the screens 7 in the screening units are different, and the screening units are specifically represented as follows: the mesh diameter of the screen 7 varies on each screening unit.

In particular, the invention provides a deflector 10 for deflecting material onto the screen 7 in the treatment channel 2 and in correspondence of each screening unit screen 7, and the deflector 10 is arranged around the screen 7. The guide plate 10 guides the materials, so that the materials can be gathered, the materials can completely flow through the screen 7 of the screening unit, and the grading of the materials is realized.

Guide plate 10 sets up in main part 1, and guide plate 10 is the multistage formula structure, according to the functional partitioning, guide plate 10 includes two sections, is respectively: a guide plate gathering section 10a connected with the inner side wall of the main body 1 and a guide plate anti-rebound section 10b connected with the guide plate gathering section 10 a.

On the material in the inside flow direction of main part 1, the guide plate gathers together section 10a and forms binding off column structure, can gather together the material of section 10a through the guide plate like this and carry out the water conservancy diversion. On the material in the inside flow direction of main part 1, the anti-bounce section of guide plate 10b forms the opening and gradually puts the formula structure, and the anti-bounce section of guide plate 10b covers the well upper portion at the screen cloth, can gather together the material that the striking rebounded on the screen cloth. Furthermore, all screening units are located in the reverse flow air channel, and the main purpose of the screening unit is to enable materials entering the screen 7 to be blown by wind, so that the dust removal effect is improved.

Specifically, the main body 1 is provided with a plurality of inspection windows 16, the inspection windows 16 are arranged in one-to-one correspondence with the screening units, and the inside conditions of the main body 1 and the service states (whether the screening units are blocked) of the screening units can be inspected through the inspection windows 16.

The invention arranges a plurality of screening units in the main body 1, and each screening unit is used for screening materials in a certain granularity range, thereby realizing the classification of the materials. In this embodiment, the screening unit is provided with a plurality of and arranges the setting in proper order along the extending direction of handling the passageway in handling the passageway, and the screening grade of screen cloth and the bottom outer fringe of screen cloth increase gradually in all screening units from top to bottom orientation. The screening grade is realized by controlling the diameter of the screen hole of the screen; the bottom outer fringe of screen cloth is crescent, specifically means the projection area of screen cloth crescent. Specifically, the screen cloth adopts conical structure, and its bottom is circular edge structure, and when the screening unit was arranged in main part 1, coaxial setting between the screen cloth, like this, the plane of projection of the screen cloth of next stage had covered the plane of projection of the screen cloth of last stage completely, guaranteed that "the material that flows" and cross the last stage screening unit can be received by the screening unit of next stage "completely.

The invention provides a closed gravity particle multistage separation dust remover which comprises a main body 1 and a screening unit, wherein a dust removing air inlet 5 and a dust removing air outlet 6 are arranged on the main body 1, so that dust removal and purification of materials can be realized. Meanwhile, the screening units are arranged in the main body 1, the screening units are multiple, and each screening unit can screen and separate materials with different particle sizes, so that grading of the materials is realized, and screening and purification of the materials can be performed again. The screening unit is also provided with an independent discharge pipe 8, and the classified materials can be independently output. The dust removal and classification device has the advantages of simple structure, compact and reasonable design, capability of simultaneously realizing dust removal and classification of materials by adopting one set of equipment, and very convenient use. Through the structural design, the problems of large occupied operation space, large equipment maintenance operation amount and the like caused by the fact that multiple sets of equipment are required for combined operation for treating granular materials in the prior art are completely solved.

According to the invention, materials are input into the main body 1 from the material inlet 3 through the feeding equipment, and internal dust is brought out through the reverse flow of wind energy in the falling process of the materials. In order to uniformly disperse powder in the falling process of the material, a conical distributor, namely a dispersing cone 17, is arranged in the main body 1. Meanwhile, in order to realize the grade screening of the materials, the screen 7 is arranged in the main body 1, the screen 7 is a screen with a framework, then, in the falling process of the materials, the materials are converged by the guide plate 10 and then screened by the screen 7 below, and the screen 7 can realize dust removal and can play a role in screening.

The invention realizes the dust removal effect of the materials in the material screening process, simultaneously realizes the multi-stage screening of the materials, ensures the cleanliness of the materials, saves the purchase cost of the equipment, reduces the occupied space of the equipment, reduces the construction cost, reduces the energy consumption and reduces the maintenance and operation cost. The equipment only carries out classification and dust removal on internal particles through the gravity of the equipment in the operation process, and the effect of multiple functions of one machine is realized.

The above is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, simplification and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. The utility model provides a closed gravity granule multistage separation dust remover which characterized in that includes:

the device comprises a main body (1), wherein a treatment channel (2) is arranged in the main body, a feeding port (3) communicated with the treatment channel is formed in the top of the main body, a discharging port (4) communicated with the treatment channel is formed in the bottom of the main body, a dedusting air inlet (5) is formed in the lower part of the main body, a dedusting air outlet (6) is formed in the upper part of the main body, and a counter-flow air channel is formed in the treatment channel from the dedusting air inlet to the dedusting air outlet;

the screening unit, the screening unit set up in the processing passageway, the upper portion of screening unit is provided with screen cloth (7), the sub-unit connection of screening unit has discharging pipe (8), the end of discharging pipe set up in outside the main part, warp the material that the screening unit was sieved by the discharging pipe is discharged, and all the other materials by the discharge gate is discharged.

2. The closed gravity particle multistage separation precipitator of claim 1,

the screen is a conical screen;

there is a space between the sieving unit and the side wall of the main body enclosing the processing channel in the radial direction of the main body.

3. The closed gravity particle multistage separation precipitator of claim 1,

the screening unit is located in the countercurrent air duct, and a guide plate (10) used for guiding materials to the screen is arranged around the screen of the screening unit.

4. The closed gravity particle multistage separation precipitator of claim 1,

the lower part of screening unit is provided with aggregate funnel (9), the discharging pipe with aggregate funnel's small-bore end is connected, the screen cloth set up in aggregate funnel's wide-mouth is served.

5. A closed gravity particle multistage separation dust collector as defined in any one of claims 1 to 4,

the screening unit be provided with a plurality ofly and in follow in the processing passageway the extending direction of processing passageway arranges the setting in proper order, is whole in the direction from top to bottom in the screening unit the screening grade of screen cloth with the bottom outer fringe of screen cloth increases gradually.

6. A closed gravity particle multistage separation precipitator as set forth in claim 5,

and a bulk material cone (17) for carrying out bulk material and wear prevention is arranged on the screening unit close to the feeding port.

7. The closed gravity particle multistage separation precipitator of claim 1,

a blanking pipe (11) is arranged in the main body and arranged in the processing channel, one end of the blanking pipe faces the feeding opening, and the other end of the blanking pipe is opposite to the screen of the screening unit close to the feeding opening.

8. The closed gravity particle multistage separation precipitator of claim 7,

one end of the blanking pipe, which faces the screen, is of a reducing type closing structure, and a gathering cover (18) is sleeved outside the blanking pipe;

the gathering cover is arranged in an extending mode relative to the end face of the blanking pipe in the direction of the screen and used for gathering the rebounding materials.

9. The closed gravity particle multistage separation precipitator of claim 1,

an annular pressure equalizing box (12) is arranged on the dedusting air outlet, and an exhaust air pipe (13) is connected with the pressure equalizing box.

10. The closed gravity particle multistage separation precipitator of claim 1,

an inlet air box (14) is arranged on the dedusting air inlet, and an inlet air pipe (15) is connected with the inlet air box.

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