CN201271556Y

CN201271556Y - Filtering net type sand dust separator

Info

Publication number: CN201271556Y
Application number: CNU2008201465788U
Authority: CN
Inventors: 杜送军; 陈首权
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-08-11
Filing date: 2008-08-11
Publication date: 2009-07-15
Anticipated expiration: 2018-08-11

Abstract

Disclosed is a filter screen type sand and dust separator, which is used for separating dust in a sand blasting box of a sand blasting equipment, the separator includes an outer box body, an air suction pipe, an air-separating pipe and a separating filter screen. The outer box body is hermetically communicated with an opening on the top of the sand blasting box through the opening on the bottom thereof, the air suction pipe is hermetically communicated with the opening on the top of the outer box body, the air suction pipe produces a negative pressure air flow in the outer box body through sucking the air. The air separating pipe is installed in the outer box body, and is combined with the outer box body, an air path with the negative pressure air flow gradually weakening from the bottom to the top of the outer box body is formed in the outer box body. The separating filter screen is installed in the outer box body, and encompasses the top of the outer box body and is communicated with the opening of the air suction pipe. When the separator is running, the negative pressure air flow takes the sand and dust in the sand blasting box into the air path, after the sand and dust is filtered through the separating filter screen, the dust is discharged from the air suction pipe, the sand particle is dropped back into the sand blasting box again. The utility model has a stable sand separating effect, the particle size of the discharged dust can be controlled, the sand consumption is decreased greatly, the efficiency is promoted greatly, the production is simpler, and the used material is more saved.

Description

Filter screen molding sand dirt separator

Technical field

The utility model relates to the sand dust separator of abrasive blast equipment, particularly a kind of filter screen molding sand dirt separator.

Background technology

Sand-blasting machine is a kind of with compressed air drive abrasive sand material, high velocity jet is to surface of the work, the mechanical performance of surface of the work is changed, because the abrasive sand material is to the impact and the shear action of surface of the work, certain cleannes and different roughness that the surface of workpiece is obtained are improved the mechanical performance of surface of the work.The sand dust separator then is the important component part of abrasive blast equipment, and its function is that the dust that will be produced in the sand-blasting machine work in time constantly separates from available sand.Existing sand-blasting machine mostly adopts cyclone separator to carry out the sand dust separation under centrifugal action, but adopting cyclone separator to carry out sub-sand exists following shortcoming: 1. the sub-sand effect is bad, unstable, the difficult control of dust-separating order number; 2. cyclone separator itself produces to rub with sand grains and causes the sand consumption to increase; 3. cyclone separator complex manufacturing technology, material cost is higher.

The utility model content

The purpose of this utility model is to provide a kind of filter screen molding sand dirt separator, shortcomings such as the sub-sand effect that overcomes above-mentioned existing cyclone separator is bad, unstable, the increase of sand consumption, complex process.

For being implemented in above-mentioned purpose, the utility model provides a kind of filter screen molding sand dirt separator, is used to separate the interior dust of blasting cabinet of abrasive blast equipment, and it comprises outer case, exhaust column, branch airduct and separates filter screen; Described outer case is communicated with the opening at described blasting cabinet top by the opening sealing of its bottom; Described exhaust column sealing is communicated with the opening at described outer case top, and this exhaust column produces negative-pressure air-flow by exhausting in described outer case; Airduct was installed in this outer case in described minute, and it forms the air channel that negative-pressure air-flow is died down to the top gradually by the outer case bottom in conjunction with described outer case in outer case; Described separation filter screen is installed in the described outer case, and it surrounds the opening that described outer case top is communicated with described exhaust column; During work, negative-pressure air-flow is brought the sand dust in the blasting cabinet into described air channel, and described sand dust is after separating strainer filtering, and dust is drained by exhaust column, and sand grains falls back in the blasting cabinet again.

Wherein, airduct was the conical pipe that extends to the bottom of described outer case from the top of described outer case in described minute, and the cross-sectional area of this conical pipe is diminished downwards gradually by the outer case top, and through hole gathers on the tube wall of this conical pipe.

Wherein, described conical pipe is conical tube or polyhedron Taper Pipe.

Wherein, described separation filter screen is the inclosure shape filter screen that extends to the bottom of described outer case from the top of described outer case, and the top fluid-tight engagement of this inclosure shape filter screen is in the top of described outer case and surround the opening that described outer case top is communicated with described exhaust column.

Wherein, the bottom of described separation filter screen also closely connects the opening of a funnel, and the mouth of this funnel then stretches in the blasting cabinet.

Wherein, described separation filter screen surrounds described conical pipe.

Wherein, it also comprises a separator skeleton, this separator skeleton comprises top board and the some feets that extended by top board downwards, described top board is fixed in the top of described outer case as the top seal of described outer case, this top board has the opening of an opening as described outer case top, in order to connect described exhaust column, airduct was fixed on the described top board in described minute, and described separation filter screen is fixed on the described feet.

In sum, the utility model has solved the difficult problem that conventional separators for many years constantly has available sand to be taken away by wind, sub-sand effect stability in sandblast work, discharge the controllable granularity system of dust, abrasive blast equipment sand consumption is reduced greatly, efficient promotes greatly, and making is easier, and materials are more economized.

For further setting forth the utility model is technological means and the effect that the predetermined purpose of realization is taked, see also following about detailed description of the present utility model and accompanying drawing, believe the purpose of this utility model, feature and characteristics, should obtain thus going deep into and concrete understanding, yet accompanying drawing only provides reference and explanation usefulness, is not to be used for the utility model is limited.

Description of drawings

Below in conjunction with accompanying drawing,, will make the technical solution of the utility model and other beneficial effects apparent by the specific embodiment of the present utility model is described in detail.

In the accompanying drawing,

Fig. 1 is the perspective exploded view of the utility model filter screen molding sand dirt separator one preferred embodiment;

Fig. 2 is the operation principle schematic diagram of the utility model filter screen molding sand dirt separator.

The specific embodiment

As shown in Figure 1, it is the perspective exploded view of the utility model filter screen molding sand dirt separator one preferred embodiment, in this preferred embodiment, this filter screen molding sand dirt separator mainly divides wind Taper Pipe 3, separation filter screen 4, secondary leakage ash bucket 5 and separator skeleton 6 to form by outer case 1, exhaust column 2, orifice plate; Outer case 1 is the cube of a upper and lower opening; Exhaust column 2 is a pipe; Orifice plate divides the Taper Pipe of wind Taper Pipe 3 for the four sides cone-shaped, and four conical surfaces of this Taper Pipe are the sheet material of the air vent that gathers; Separating filter screen 4 is four barrel-shaped filter screens in the side that square filter screen enclosed; Secondary leaks the funnel that ash bucket 5 is the four sides cone-shaped; And separator skeleton 6 comprises square top board and four elongated support pin that extended by top board also having a circular open on the top board of separator skeleton 6 downwards.

As shown in Figure 2, it is the operation principle schematic diagram of the utility model filter screen molding sand dirt separator.Outer case 1 vertically is installed on the top of the blasting cabinet 7 of abrasive blast equipment, and the opening that the opening of outer case 1 bottom and blasting cabinet 7 tops are reserved is tightly connected; The top board sealing and fixing of the opening at the top of outer case 1 and separator skeleton 6, the circular open of the top board of separator skeleton 6 and exhaust column 2 are tightly connected, and exhaust column 2 then can connect outside exhaust equipment, as (figure do not show) such as air exhausters.In outer case 1 inside, orifice plate divides on the top board that is fixed in separator skeleton 6 at the bottom of the awl of wind Taper Pipe 3 and around the circular open of top board, its cross section from top to bottom reduces gradually; Separate 4 of filter screens and divide the wind Taper Pipe 3 one-tenths one circles, be fixed on four feets of separator skeleton 6 around orifice plate, the opening at separation filter screen 4 tops then with the top board fluid-tight engagement of separator skeleton 6; It is then closely fixing with the opening that separates filter screen 4 bottoms that secondary leaks the opening of ash bucket 5, and its mouth then stretches into downwards in the interior sand dust 8 of blasting cabinet 7; At this moment, between outer case 1 and blasting cabinet 7, formed separator air channel 9,, made negative-pressure air-flow in separator air channel 9, die down gradually by bottom to the top of outer case 1 because orifice plate divides the air vent that gathers on the tapered and conical surface of wind Taper Pipe 3.

This filter screen molding sand dirt separator starts with exhausting starts working, when abrasive blast equipment is worked, negative-pressure air-flow with exhausting after the coarse sand (fresh sand) of blasting cabinet 7 inside mixes with fine sand (dust) moves and enters 9 inside, separator air channel to the top, the flow direction of negative-pressure air-flow is shown in arrow among Fig. 2, entering separator air channel 9 inner back negative-pressure air-flows die-offs, the sand dust translational speed die-offs, thereby most of sand grains falls back in the blasting cabinet 7 greater than the absorption affinity of exhausting negative pressure again because of the gravity of self, have only few part sand grains (dust) under faint negative-pressure adsorption power effect, to begin to cross separation filter screen 4 with air communication, because filter screen order number is certain, like this by separating the granularity requirements that filter screen 4 separated dust granularities just can reach needs to discharge dust, and all can not stop up separation filter screen 4 through the sand grains that separates filter screen 4 in design wind speed, the dust that separates filter screen 4 surfaces accumulates constant weight and also can fall back automatically in the blasting cabinet 7, small part is failed then to leak ash bucket 5 by secondary by the dust that exhaust column 2 is discharged and is come back in the blasting cabinet 7, can not pollute.In addition, by the order number of control separation filter screen 4, the granularity of controlled filter dust easily.

The utility model utilize filter screen as separating medium, utilize the exhausting negative-pressure sucking that the dust in the sand dust mixture is directly carried out separating and filtering, isolated particle size of dust can require and arbitrarily control with part processing, the making structure and the installation form of each assembly can be done multiple conversion, as orifice plate being divided the wind Taper Pipe be changed to the Taper Pipe of the densely covered air vent of other conical surface, perhaps save separator skeleton etc.By adopting design of the present utility model, solved the difficult problem that conventional separators for many years constantly has available sand to be taken away by wind in sandblast work, abrasive blast equipment sand consumption reduced greatly, efficient promotes greatly, and makes easylier, and materials are more economized.

The above; for the person of ordinary skill of the art; can make other various corresponding changes and distortion according to the technical solution of the utility model and technical conceive, and all these changes and distortion all should belong to the protection domain of the utility model accompanying Claim.

Claims

1, a kind of filter screen molding sand dirt separator is used to separate the dust in the blasting cabinet of abrasive blast equipment, it is characterized in that it comprises outer case, exhaust column, branch airduct and separates filter screen; Described outer case is communicated with the opening at described blasting cabinet top by the opening sealing of its bottom; Described exhaust column sealing is communicated with the opening at described outer case top, and this exhaust column produces negative-pressure air-flow by exhausting in described outer case; Airduct was installed in this outer case in described minute, and it forms the air channel that negative-pressure air-flow is died down to the top gradually by the outer case bottom in conjunction with described outer case in outer case; Described separation filter screen is installed in the described outer case, and it surrounds the opening that described outer case top is communicated with described exhaust column; During work, negative-pressure air-flow is brought the sand dust in the blasting cabinet into described air channel, and described sand dust is after separating strainer filtering, and dust is drained by exhaust column, and sand grains falls back in the blasting cabinet again.

2, filter screen molding sand dirt separator as claimed in claim 1, it is characterized in that, airduct was the conical pipe that extends to the bottom of described outer case from the top of described outer case in described minute, and the cross-sectional area of this conical pipe is diminished downwards gradually by the outer case top, and through hole gathers on the tube wall of this conical pipe.

3, filter screen molding sand dirt separator as claimed in claim 2 is characterized in that, described conical pipe is conical tube or polyhedron Taper Pipe.

4, filter screen molding sand dirt separator as claimed in claim 1, it is characterized in that, described separation filter screen is the inclosure shape filter screen that extends to the bottom of described outer case from the top of described outer case, and the top fluid-tight engagement of this inclosure shape filter screen is in the top of described outer case and surround the opening that described outer case top is communicated with described exhaust column.

5, filter screen molding sand dirt separator as claimed in claim 1 is characterized in that the bottom of described separation filter screen also closely connects the opening of a funnel, and the mouth of this funnel then stretches in the blasting cabinet.

6, filter screen molding sand dirt separator as claimed in claim 2 is characterized in that described separation filter screen surrounds described conical pipe.

7, as the arbitrary described filter screen molding sand dirt separator of claim 1 to 6, it is characterized in that, it also comprises a separator skeleton, this separator skeleton comprises top board and the some feets that extended by top board downwards, described top board is fixed in the top of described outer case as the top seal of described outer case, and this top board has the opening of an opening as described outer case top, in order to connect described exhaust column, airduct was fixed on the described top board in described minute, and described separation filter screen is fixed on the described feet.