CN205277479U

CN205277479U - Mining multistage dust collector of wet combination that does

Info

Publication number: CN205277479U
Application number: CN201620016381.7U
Authority: CN
Inventors: 杨月平; 吉坤; 李彬; 王荣; 杨其龙
Original assignee: University of South China
Current assignee: Nanhua University; University of South China
Priority date: 2016-01-11
Filing date: 2016-01-11
Publication date: 2016-06-01
Anticipated expiration: 2026-01-11

Abstract

The utility model relates to a mining multistage dust collector of wet combination that does. Cyclone one -level dry dust removal mechanism, water smoke dust removal second grade wet dedusting mechanism in the venturi who arranges the dust collector box outside in catches dirt mechanism and arranges the box in. Utilize the venturi dust absorption to replace traditional fan dust absorption, safer and energy -conserving, adaptable more operational environment, whirlwind remove dust as mine dust primary treatment module, can detach most respirable dust, have reduced mist spray dust removal's work load, practice thrift a large amount of water resources, adopt mist spray dust removal to remove dust as the second grade, have reinforceed dust removal effect, simultaneously cooling effect in addition. This device simple structure, convenient to use, production cost is lower, and dust removal effect is good, so extensive popularization nature is good.

Description

Mining dry wet associating Multi-stage dust removing device

Technical field

The present invention relates to a kind of cleaning apparatus, it is specifically related to a kind of mining dry wet associating Multi-stage dust removing device.

Background technology

Cleaning apparatus is various informative, but usually has two parts: first part is for catching dirt system, and the dust swimming in outside air is caught in effect; Second section is dust falling system, namely the dust caught is collected to get up to prevent it from escaping. Relatively successful dedusting method has at present: inertial dust collection, gravitational dust collection, electrostatic precipitation etc.

Existing several method for dust removal respectively has its relative merits, and efficiency of dust collection is also uneven. The principle that inertial dust separator mainly utilizes dust different from air proportion, makes mine dust rely on self gravity to settle down from air, although this kind of method for dust removal structure is simply, easily safeguard, but efficiency low be its maximum shortcoming; Gravitational precipitator is generally arrange baffle plate in the front of dust-contained airflow, the direction of air-flow is sharply changed, now dust due to mass force more much bigger than gas, just depart from dust-contained airflow to be separated, the efficiency of this kind of fly-ash separator is equally also lower, the mine dust particle that diameter is bigger can only be separated, therefore the first paragraph being used in multistage dedusting; Electrostatic precipitator purification efficiency is higher, and resistance is less, can trap the superfine dust being greater than 0.01um, but the ratio resistance of dust be there are certain requirements by it, so the separation of dust is had certain selectivity, and it is not suitable for the mine dust purification in high methane colliery, therefore significantly limit its range of application.

Meanwhile, tradition cleaning apparatus can supervene many pollutions in dust removal process, and some energy that can reuse is not utilized effectively.

Summary of the invention

The present invention is healthy in order to solve mine dust harm miner in mining production, existing cleaning apparatus energy consumption height, to subsurface environment bad adaptability, while simplification device complex structure degree, cannot effectively improve efficiency of dust collection and the problem of secondary pollution can be caused, and then a kind of mining dry wet associating Multi-stage dust removing device is provided.

The technical scheme of the present invention is: this dry wet associating Multi-stage dust removing device comprises dust collecting device, cleaning apparatus, and dust collecting device is placed in outside cleaning apparatus casing, and cleaning apparatus is placed in casing, wherein cleaning apparatus is two-stage dust removal device, the first step is dry gas cleaning, and the second stage is wet dust removal

Described dust collecting device adopts Venturi tube 1, and the upper end of Venturi tube is import 2, arranges dust hood 3 in the junction of import and Venturi tube upper end, and the position of dust hood entrance is vertical with the direction of import air inlet;

Described dry gas cleaning adopts tornado dust collector 111, by bend pipe 4 at cyclone entrance and gradually expands pipe 5 and forms, and is used for change air flow line and speed,

The tail end of described Venturi tube connects the import of the tornado dust collector being positioned at box house;

Dividing plate 6 is set in described casing, is dry gas cleaning room on the left of dividing plate, be wet dust removal room on the right side of dividing plate, dividing plate upper end is provided with perforate, the gradually expansion pipe of tornado dust collector stretches to wet dust removal room through perforate, and the lower end of dividing plate does not contact bottom casing, is namely be connected bottom casing;

Observation buoy 7 is set in dry gas cleaning indoor to observe the indoor ponding of dry gas cleaning, to prevent being flooded bottom tornado dust collector,

Baffle plate 9, ash flushing water pipe 10 and a punching ash sloping platform 11 of two shower nozzles, 8, lower ends bent it is provided with in wet dust removal indoor, two shower nozzles are arranged on the inner biside plate of device box respectively, baffle plate is fixed on after box house on plate, and it is at an angle with rear plate, punching ash sloping platform is placed in box house, it is divided into the angle of inclination difference of two sections and two sections, and auxiliary ash flushing water pipe is fixed on punching ash sloping platform upper end.

Adopting the theoretical structural parameter to tornado dust collector of Leith-Licth to be optimized, tornado dust collector comprise: justifying straight pipe 12, taper cone barrel 13, cylinder 14, inlet mouth 15, vapor pipe 16, bend pipe 4 and gradually expand pipe 5, each several part proportionlity is as follows:

High velocity air through the entrance of Venturi tube lead to into, its speed can be accelerated at trunnion place and reach maximum, forms huge pressure drop herein simultaneously, utilizes this pressure drop and coordinate dust hood the mine dust in the external world can be drawn into cleaning apparatus inside. Mine dust, behind access to plant inside, first enters and carries out coagulation in tornado dust collector. Tornado dust collector utilize centrifugal force to be separated by the mine dust of greater particle size, and the mine dust particle separated is fallen by the ash straight pipe of circle that falls of bottom. Adopt centrifugal force separate mine dust can alleviate the workload of water mist dust-removing, thus saving water resource. In water mist dust-removing two grades of wet dust removal mechanisms, adopting pressure type atomizer, droplet dia of its ejection is little, can the effective wetting small mine dust escaping out from cyclone dust removal module, remove mine dust further, thus reach the effect of two grades of depositing dusts. Design punching ash sloping platform in dust settling chamber, the waste water utilizing spray for dust suppression to produce regularly emits being deposited on the mine dust bottom dust settling chamber, if deposition mine dust is too much, then by utilizing auxiliary ash flushing water pipe to rinse.

The present invention is catching the employing Venturi effect dust suction of dirt part, and dedusting adopts two-stage dedusting, and the first step is dry gas cleaning, and the second stage is wet dust removal, and two stage position can not be exchanged, otherwise the effect not reached; Adopt tornado dust collector to remove big dust granule in dry gas cleaning part, the water loss of wet dust removal can be alleviated like this.

The present invention compared with prior art has following effect:

1 utilizes Venturi tube dust suction to replace traditional blower fan dust suction, and safety is with energy-conservation more, can adapt to more Working environments, as produced dirt point dedusting for underground coal mine, can effectively avoid gas and coal dust explosion accident;

The 2 theoretical structural parameter to cyclone dust removal module of employing Leith-Licth are optimized, and cyclone dust removal, as mine dust coagulation module, can remove major part respirable dust, reduce the workload of spray for dust suppression, save great lot of water resources;

3 employing spray for dust suppression, as two-stage dust removal, enhance dust removing effects, also have cooling effect simultaneously;

Arranging punching ash sloping platform bottom 4 dust settling chambers, utilize the waste water in spray for dust suppression to rinse and assemble mine dust, ash flushing water pipe is auxiliary to be rinsed, both two dusts can effectively have been avoided, great lot of water resources can be saved again, in dry gas cleaning room, set up an observation of stage buoy simultaneously, facilitate observation device water level inside;

5 apparatus structures are simple, it may also be useful to convenient, productive expense is lower, good dedusting effect, therefore large-scale promotion is good.

Accompanying drawing explanation

Fig. 1 is the schematic perspective view of dry wet associating Multi-stage dust removing device;

Fig. 2 is the front view of dry wet associating Multi-stage dust removing device,

Fig. 3 is the left view of dry wet associating Multi-stage dust removing device;

Fig. 4 is the front view of one-level dry gas cleaning mechanism.

Embodiment

Mining dry wet associating Multi-stage dust removing device comprises the Venturi tube Bu Chen mechanism being placed in outside dust-removing box and is placed in the one-level dry gas cleaning mechanism of box house, two grades of wet dust removal mechanisms. By high velocity air through the entrance of Venturi tube lead to into, its speed can be accelerated at trunnion place and reach maximum, forms huge pressure drop herein simultaneously, utilizes this pressure drop and coordinate dust hood the mine dust in the external world can be drawn into cleaning apparatus inside. Mine dust, behind access to plant inside, first enters in optimization type tornado dust collector and carries out coagulation. Optimization type tornado dust collector utilize centrifugal force to be separated by the mine dust of greater particle size, and the mine dust particle separated is fallen by the ash straight pipe of circle that falls of bottom. Adopt centrifugal force separate mine dust can alleviate the workload of water mist dust-removing, thus saving water resource. In water mist dust-removing two grades of wet dust removal mechanisms, adopting pressure type atomizer, droplet dia of its ejection is little, can the effective wetting small mine dust escaping out from cyclone dust removal module, remove mine dust further, thus reach the effect of two grades of depositing dusts. Design punching ash sloping platform in dust settling chamber, the waste water utilizing spray for dust suppression to produce regularly emits being deposited on the mine dust bottom dust settling chamber, if deposition mine dust is too much, then by utilizing auxiliary ash flushing water pipe to rinse.

One-level dry dust removal apparatus adopts tornado dust collector, comprise conical tube body, it is connected to down right cylinder cylinder body and the straight pipe of circle thereon, inlet mouth and the tangent connection of right cylinder cylinder body, vapor pipe vertically inserts from right cylinder cylinder body top, vapor pipe top connects 90 �� of bend pipes, and connects one at 90 �� of bend pipe ends and gradually expand pipe, and mode of connection is welding everywhere. After dust-contained airflow enters tornado dust collector cylindrical tube body part from inlet mouth with higher tangential velocity, current downflow will be turned in fly-ash separator inward turning. Due to the effect of centrifugal force, solid particulate is thrown toward barrel, and divides along pyramid type barrel under deadweight effect and move downward; When a certain position of air-flow arrival cone cylinder body, just form one by the spiral-line air-flow on lower turn with same sense of rotation. The gas of final purification is discharged by the venting port straight pipe of circle, and the grit of a part of collection at large is also thus escaped.

Two grades of wet dust removal devices adopt water mist dust-removing, comprise two shower nozzles, the baffle plate of a lower ends bent, an ash flushing water pipe and a punching ash sloping platform, two shower nozzles are arranged on the inner biside plate of device box respectively, baffle plate is fixed on after box house on plate, and it is at an angle with rear plate, punching ash sloping platform is placed in box house, and it is divided into the angle of inclination difference of two sections and two sections, and auxiliary ash flushing water pipe is fixed on punching ash sloping platform upper end.

Claims

1. a mining dry wet associating Multi-stage dust removing device, comprises dust collecting device, cleaning apparatus, and dust collecting device is placed in outside cleaning apparatus casing, cleaning apparatus is placed in casing, it is characterised in that, cleaning apparatus is two-stage dust removal device, the first step is dry gas cleaning, and the second stage is wet dust removal

Described dust collecting device adopts Venturi tube (1), and the upper end of Venturi tube is import (2), arranges dust hood (3) in the junction of import and Venturi tube upper end, and the position of dust hood entrance is vertical with the direction of import air inlet;

Described dry gas cleaning adopts tornado dust collector (111), by bend pipe (4) at cyclone entrance and gradually expands pipe (5) and forms, and is used for change air flow line and speed,

Dividing plate (6) is set in described casing, is dry gas cleaning room on the left of dividing plate, be wet dust removal room on the right side of dividing plate, dividing plate upper end is provided with perforate, the gradually expansion pipe of tornado dust collector stretches to wet dust removal room through perforate, and the lower end of dividing plate does not contact bottom casing, is namely be connected bottom casing.

2. the mining dry wet associating Multi-stage dust removing device of one according to claim 1, it is characterised in that, described dry gas cleaning indoor arrange observation buoy (7) and observe the indoor ponding of dry gas cleaning, to prevent being flooded bottom tornado dust collector.

3. the mining dry wet associating Multi-stage dust removing device of one according to claim 1, it is characterized in that, described wet dust removal indoor are provided with two shower nozzles (8), the baffle plate (9) of a lower ends bent, an ash flushing water pipe (10) and punching ash sloping platform (11), two shower nozzles are arranged on the inner biside plate of device box respectively, baffle plate is fixed on after box house on plate, and it is at an angle with rear plate, punching ash sloping platform is placed in box house, it is divided into the angle of inclination difference of two sections and two sections, and auxiliary ash flushing water pipe is fixed on punching ash sloping platform upper end.

4. the mining dry wet associating Multi-stage dust removing device of one according to claim 1, it is characterized in that, described tornado dust collector comprise: circle is straight manages (12), taper cone barrel (13), cylinder (14), inlet mouth (15), vapor pipe (16), bend pipe (4) and gradually expands pipe (5), and each several part proportionlity is as follows:

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