CN203417577U

CN203417577U - Vacuum filter

Info

Publication number: CN203417577U
Application number: CN201320544451.2U
Authority: CN
Inventors: 陈建忠; 俞金芳
Original assignee: Nantong Haiying Electromechanical Group Co Ltd
Current assignee: Nantong Haiying Electromechanical Group Co Ltd
Priority date: 2013-08-28
Filing date: 2013-08-28
Publication date: 2014-02-05
Anticipated expiration: 2023-08-28

Abstract

The utility model relates to a vacuum filter and belongs to the technical field of filters. According to the filter, a purifying cavity is arranged on the upper part of a shell; a filtering cavity is arranged on the lower part of the purifying cavity; the filtering cavity is internally provided with a set of pipe-shaped bags; the purifying cavity is provided with a pulse jetting device; a flow guide cone is arranged at the bottom of the filtering cavity; the shell extends downwards to form a straight barrel section for containing the flow guide cone; the straight barrel section is provided with a tangential air inlet and a duct collection cone; an ash outlet is formed in the bottom end of the duct collection cone; the flow guide cone is internally provided with a labyrinth device; the labyrinth device is composed of a set of lower metal flow guide plates and a set of upper metal lower flow guide plates, which are radiated along the radial direction of the central shaft. According to the vacuum filter provided by the utility model, cyclone dust removal and dust filtration are organically combined together; the vacuum filter is compact in structure, good in purification effect, long in service life, and convenient to operate.

Description

A kind of vacuum filter

Technical field

The utility model relates to a kind of filter, and especially a kind of vacuum filter, belongs to filter technology field.

Background technology

Bag filter is a kind of equipment that is widely used in the numerous areas such as environmental protection, purification.Traditional bag filter mainly consists of filtration system, pulse jet system, compressed air system, ash discharge system etc.During work, utilize the bag-shaped filter element that fibrous braid is made to trap solid particulate matter in dusty gas, reach the effect of dedusting.

When adopting existing sack cleaner to process the high-temperature dusty gas that the contour fire grate of steel mill goes out, filter bag is easy to be heated and burns out.Adopt first cooling to refilter, will make cleaner become huge, and the bulky grain dust of temperature-fall period sedimentation is difficult to get rid of.

Application number is that 201220318437.6 Chinese patent application discloses a kind of vacuum filter, comprises filter housings, is arranged at air inlet pipe on filter cylinder upper top cover between two parties, is fixed on filter bag support, this support under filter cylinder upper top cover between two parties the cylindrical shell grills that is upper end, is welded into by steel bar; Suit is fixed on the filter bag on filter bag support.A kind of vacuum filter of the present utility model, for the airflow filtering device of titanium sponge distillation vacuum unit front end, can improve the corrosion-resistant and wear-resistant ability of vacuum unit, avoid air-flow at a middle or low price thing or magnesium powder, magnesium chloride powder enter vacuum system, pollute pump oily.Yet therefore, in this type of filter use procedure, there is following problem: 1) owing to there is no bulky grain capturing structure, while filtering the high-temperature gas of containing metal particle, easy spontaneous combustion forms Mars and makes filter element burn out inefficacy; Therefore 2) owing to there is no air-flow homogenising structure, unavoidable dusty gas is uneven and to cause part filter element to lose efficacy too fast, causes system pressure drop rapid, and result makes that frequency of maintenance is too high, production cost strengthens; 3) lack cooling behave, easily due to filtering gas excess Temperature, shorten the service life of filter element.

Utility model content

The purpose of this utility model is: the shortcoming existing for above-mentioned prior art, a kind of body good dedusting effect can not only filter high temperature dust gas time is proposed, and the long vacuum filter of compact conformation, life of bag filter, thereby meet the processing demands of blast furnace waste gas.

In order to reach above object, vacuum filter of the present utility model comprises vertical tube shape filter housings, described housing top vacuumizes and leads to the clean chamber of filter of gas outlet while having work, the filter chamber of bottom, the clean chamber of described filter for separating by filter bag supporting plate, in described filter chamber, settle one group of sack to be supported on the tubulose filter bag that filter bag supporting plate supports, the clean chamber of described filter is equipped with spout and is faced toward respectively the pulse spraying equipment of each filter bag, described filter chamber bottom is the deflection cone of convergent, its improvements are: described housing extends the direct tube section that contains deflection cone down, described direct tube section has the control of dust cone of tangential admission mouth and bottom convergent, the bottom of described control of dust cone is able to turn on or off ash hole, the bottom of described deflection cone has the end mouth that stretches into control of dust cone, in described deflection cone, there is maze device, described maze device consists of one group of metal chin spoiler and one group of metal baffle upper plate of central shaft radial radiation.

During work, high-temperature dusty gas enters control of dust cone from tangential admission mouth, forms the whirlwind of backspin, oarse-grained dust is clashed into after control of dust is bored wall under the action of the centrifugal and drop to ash hole place.The negative pressure at whirlwind center makes air-flow enter the end mouth of deflection cone, passes through maze device.This device not only plays air-flow and acts on uniformly, and makes gas radiating and cooling, and the clean gas that sees through afterwards filter bag enters filter clean chamber output.

It is that the angular position of described chin spoiler and baffle upper plate staggers, and can make full and uniformization of air-flow like this that the utility model further improves.

The utility model further improves, and described control of dust cone bottom one side is provided with the broken arch mouth of input pulse air-flow.Can guarantee desirable ash-removal effect like this.

Accompanying drawing explanation

Below in conjunction with accompanying drawing, the utility model is further described.

Fig. 1 is the structural representation of an embodiment of the utility model.

Fig. 2 is the cutaway view of Fig. 1.

Fig. 3 is the top view of Fig. 1.

Fig. 4 is the filter bag arrangement schematic diagram of Fig. 1.

Fig. 5 is the maze portion structural representation of Fig. 2.

Fig. 6 is the A-A cutaway view of Fig. 5.

Fig. 7 is the B-B cutaway view of Fig. 5.

Fig. 8 is the structure for amplifying schematic diagram of Fig. 1 bottom.

The specific embodiment

Embodiment mono-

The vacuum filter of the present embodiment as shown in Figures 1 to 4, the vertical tube shape filter housings 1 that comprises circular section, housing 1 top have with vacuum generating equipment together with vacuum flange mouth 1-14, when top has work, vacuumize and lead to the clean chamber 1-1 of filter of gas outlet 1-4.Filter the filter chamber 1-3 of 1-1 bottom, clean chamber for separating by filter bag supporting plate 1-2, in filter chamber 1-3, settle one group of sack to be supported on the tubulose filter bag 2 that filter bag supporting plate supports.Filter clean chamber 1-1 and spout is housed respectively facing to the pulse spraying equipment 3 of each filter bag.Filter chamber 1-3 bottom is the deflection cone 1-5 of convergent.Housing 1 extends the direct tube section 1-6 that contains deflection cone 1-5 down, and direct tube section 1-6 has the control of dust cone 1-7 of tangential admission mouth 1-8 and bottom convergent.The bottom of control of dust cone 1-7 is the dust-collecting cylinder 1-11 with able to turn on or off ash hole 1-9.The bottom of deflection cone 1-5 has the end mouth 1-10 that stretches into control of dust cone 1-7.

In deflection cone 1-5, have maze device, this maze device as shown in Figs. 5 to 7, consists of vertical central shaft 5-1 radial radiation and uniform 12 metal chin spoiler 5-3 and 12 metal baffle upper plate 5-2.Between chin spoiler 5-3 and baffle upper plate 5-2, leave axially spaced-apart 5-4, angular position staggers each other.After high temperature air enters, metal chin spoiler 5-3 and metal baffle upper plate 5-2 can make full and uniformization of air-flow, have good radiating and cooling effect simultaneously.

In addition, control of dust cone 1-7 bottom one side is provided with the broken arch mouth 1-12 of input pulse air-flow.Like this, input pulse air, fully deposits the dust on tube wall when needed.As shown in Figure 8, ash hole 1-9 is equipped with and hingedly in dust-collecting cylinder 1-11 lower end one side, goes out tepetate 9-1, the piston rod end that goes out tepetate 9-1 extended lever arm outer end and the hinged ash discharge cylinder 9-2 in control of dust cone 1-7 lower end is hinged, therefore can work as dust while reaching level-sensing device 1-13, tepetate 9-1 is opened out in control, in time deashing.Positiver sealing when guaranteeing out that tepetate 9-1 closes, at dust-collecting cylinder 1-11 away from a side that the goes out tepetate 9-1 hinged place hinged locking bail 9-3 that clamps out dirt lid 9-1 while having closure also, the tailpiece of the piston rod of this locking bail 9-3 extended compressor arm outer end and the hinged locking cylinder 9-3 at dust-collecting cylinder 1-11 is hinged, therefore can, after going out tepetate 9-1 closure, compress out tepetate and make its positiver sealing.

During work, the filter of the present embodiment organically combines cyclone dust removal and filtering dust collecting, so compact conformation, good purification, and experiment showed, that also tool has the following advantages:

1) vacuum state operation, can avoid high temperature active metal to produce naked light by controlling oxygen content, stops the phenomenon that filter bag is heated and burns out.

2) air-flow is evenly distributed and adopts the copper heat dissipation metal that thermal conductivity is good, therefore can significant prolongation life of bag filter.

3) deflection cone can be collected bulky grain dust in changing the process of airflow direction, alleviates the burden of filter bag.

4) arch breaking apparatus employing gas shakes and replaces machinery to shake, and ash-removal effect is more obvious.

5) deashing device good sealing effect, easy to operate.

Claims

1. a vacuum filter, comprise vertical tube shape filter housings, described housing top vacuumizes and leads to the clean chamber of filter of gas outlet while having work, the filter chamber of bottom, the clean chamber of described filter for separating by filter bag supporting plate, in described filter chamber, settle one group of sack to be supported on the tubulose filter bag that filter bag supporting plate supports, the clean chamber of described filter is equipped with spout and is faced toward respectively the pulse spraying equipment of each filter bag, described filter chamber bottom is the deflection cone of convergent, it is characterized in that: described housing extends the direct tube section that contains deflection cone down, described direct tube section has the control of dust cone of tangential admission mouth and bottom convergent, the bottom of described control of dust cone is able to turn on or off ash hole, the bottom of described deflection cone has the end mouth that stretches into control of dust cone, in described deflection cone, there is maze device, described maze device consists of one group of metal chin spoiler and one group of metal baffle upper plate of central shaft radial radiation.

2. vacuum filter according to claim 1, is characterized in that: the angular position of described chin spoiler and baffle upper plate staggers.

3. vacuum filter according to claim 2, is characterized in that: between described chin spoiler and baffle upper plate, leave axially spaced-apart.

4. vacuum filter according to claim 3, is characterized in that: described control of dust cone bottom one side is provided with the broken arch mouth of input pulse air-flow.

5. according to the arbitrary described vacuum filter of claim 1 to 4, it is characterized in that: described ash hole is equipped with the hinged tepetate that goes out in dust-collecting cylinder lower end one side, described in to go out the piston rod end of tepetate extended lever arm outer end and the hinged ash discharge cylinder in control of dust cone lower end hinged.

6. vacuum filter according to claim 5, it is characterized in that: described dust-collecting cylinder clamps out away from an example that goes out tepetate hinged place is also hinged the locking bail that dirt covers while having closure, and the tailpiece of the piston rod of described this locking bail extended compressor arm outer end and the hinged locking cylinder at dust-collecting cylinder is hinged.