CN202015603U

CN202015603U - Foam generator

Info

Publication number: CN202015603U
Application number: CN2011201084059U
Authority: CN
Inventors: 杨小波
Original assignee: XI'AN XIKE COAL MINE SAFETY VENTILATION FIRE-PREVENTION INSTITUTE Co Ltd
Current assignee: XI'AN XIKE COAL MINE SAFETY VENTILATION FIRE-PREVENTION INSTITUTE Co Ltd
Priority date: 2011-04-11
Filing date: 2011-04-11
Publication date: 2011-10-26
Anticipated expiration: 2021-04-11

Abstract

The utility model discloses a foam generator, which comprises a foam generator cylinder, an air inlet tube, a Venturi tube, a feeding tube, an impeller bracket, a mixing section and an outlet tube, wherein the air inlet tube is communicated with an air compressor; a feeding hole is formed on the tube wall of the front section of the throat part of the Venturi tube; the feeding tube is arranged on the cylinder wall of the foam generator cylinder; the impeller bracket is arranged behind the Venturi tube in the foam generator cylinder, and an impeller is mounted on the impeller bracket; the mixing section is arranged behind the impeller bracket in the foam generator cylinder, and irregular cylindrical medium is filled in the mixed section; and the outlet tube is arranged on the rear end of the foam generator cylinder. In the utility model, the air inlet pipe is arranged on the front end of the foam generator cylinder, the feeding tube is arranged on the cylinder wall of the front or middle part of the foam generator cylinder, a feeding hole is formed in the tube wall of the front section of the throat part of the Venturi tube, a gas can be sprayed into foaming agent solution at a high speed and mixed with the foaming agent solution in the Venturi tube, an impeller is arranged behind the Venturi tube, and foam is uniformly mixed in the mixing section. The foam generator has the characteristics of simple structure, reasonable design and good foaming effect.

Description

Foam maker

Technical field

The utility model relates to a kind of cleaner, particularly a kind of foam maker that is used for carrying out in narrow and small places, space such as down-hole mining working faces the foam dust-removing equipment of dust hazard management.

Background technology

In progress of coal mining, can produce a large amount of dust, and the coal digging operation is the master operation of producing dirt, its dust-producing amount accounts for more than 80% of total dust, the physical and mental health of serious harm coal miner.Present about 250,000 people of pneumoconiosis patient of China's coal-mine industry, and, have every year 3000 people to die from pneumoconiosis approximately with annual 5000 people's speed increase, brought great misery for patient and family thereof.In order to prevent and treat dust, all can adopt a series of measures in the work progress of colliery, as the water filling of spray for dust suppression machine-made egg-shaped or honey-comb coal briquets layer etc., to reduce dust pollution.

Foam dust-removing technology is the emerging in recent years a kind of dedusting technology that grows up, and it has the advantages that water consumption is few, efficiency of dust collection is high, especially respirable dust is had significant effect.Find that the core of foam dust-removing technology is frothing percentage and foaming quality in the research of foam dust-removing is used, foam maker produces foam, make the foam of generation form a closely knit solid, surround dust within the specific limits, make it, reach the purpose of depositing dust not to external diffusion.Therefore, if breaking easily, bubble amt deficiency that produces or foam all can influence the effect of dedusting.

Summary of the invention

The purpose of this utility model provides a kind of reasonable in design, simple in structure, foam maker that foaming effect is good.

To achieve these goals, the utility model is taked following technical solution:

Foam maker comprises the foam maker cylindrical shell, is arranged at the air inlet pipe of foam maker barrel front end, and air inlet pipe and air compressor link; Be arranged at the Venturi tube in the foam maker cylindrical shell, Venturi tube throat leading portion tube wall is provided with charging hole; Be arranged at the feed pipe on the foam maker cylindrical shell barrel; Be arranged at the impeller support at foam maker cylindrical shell inner venturi tube rear, on the impeller support impeller be installed; Be arranged at the mixer at foam maker cylindrical shell internal lobe wheel support rear, be filled with irregular column medium in the mixer; Be arranged at the outlet of foam maker cylinder back-end.

Preferably, described charging hole is the through hole that is arranged at intervals on the Venturi tube tube wall.

Preferably, described feed pipe and described Venturi tube link, and the outlet of described feed pipe is described charging hole.

Because the addition of the relative gas of addition of foaming agent solution is less, the utility model is arranged on air inlet pipe the front end of foam maker cylindrical shell, feed pipe is arranged on the barrel at foam maker cylindrical shell front portion or middle part, Venturi tube throat leading portion tube wall is provided with charging hole, the gases at high pressure air inflow is big, gas can spray in the foaming agent solution at a high speed and mix foaming with foaming agent solution in Venturi tube, at the Venturi tube rear impeller is set, make foam more even, foam by the mixer at impeller rear, further mixes gas and foam again.The utlity model has simple in structure, reasonable in design, the characteristics that foaming effect is good.

Description of drawings

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

Fig. 2 is the structural representation of another embodiment of the utility model.

Below in conjunction with accompanying drawing the specific embodiment of the present utility model is done explanation in further detail.

The specific embodiment

As shown in Figure 1, foam maker of the present utility model comprises foam maker cylindrical shell 1, air inlet pipe 2, Venturi tube 3, feed pipe 4, impeller 5, impeller support 6, mixer 7 and outlet 8.For convenience of description, the arrival end of air inlet pipe 2 is defined as before.

Air inlet pipe 2 is arranged at the front end of foam maker cylindrical shell 1, air inlet pipe 2 links with the air outside compressor, pressure-air enters the foam maker cylindrical shell 1 from air inlet pipe 2, air inlet pipe 2 ports of export are provided with Venturi tube 3 in the foam maker cylindrical shell 1, and gases at high pressure directly enter in the Venturi tube 3 after entering in the foam maker cylindrical shell 1.Foam maker cylindrical shell 1 barrel is provided with feed pipe 4, and feed pipe 4 and outside blowing agent holding vessel UNICOM, feed pipe 4 are positioned near the position of front portion, Venturi tube 3 throats of foam maker cylindrical shell 1, and foaming agent solution enters the foam maker cylindrical shell 1 from feed pipe 4.The tube wall of Venturi tube 3 throat's leading portions is provided with charging hole a, and the foaming agent solution that enters in the foam maker cylindrical shell 1 enters the Venturi tube 3 from charging hole a, with the gases at high pressure mixed foaming.Be provided with impeller support 6 at foam maker cylindrical shell 1 inner venturi tube 3 rears, impeller 5 is installed on the impeller support 6, impeller 5 rotates under the fluid force of gas-liquid flow promotes, and can increase the stability of foam, makes foam fine and smooth more, even.Impeller 5 rears are provided with mixer 7 in foam maker cylindrical shell 1, be filled with irregular column medium in the mixer 7, when mix slurry is passed through mixer 7, velocity of liquid assets has on the one hand slowed down, prolong mix slurry than the currency in the short distance, blowing agent can be mixed, adopted the foaming section of filling irregular column medium on the other hand, can increase the foam wall thickness, the ability that makes foam have better stability and bear pressure.Be provided with outlet 8 in foam maker cylindrical shell 1 rear end, outlet 8 links with the foam jet pipe, and foam outwards sprays through the foam jet pipe.

The course of work of the present utility model is as follows:

Gases at high pressure from air compressor enter the foam maker cylindrical shell 1 from air inlet pipe 2, come foaming agent solution charging hole a from Venturi tube 3 after feed pipe 4 enters foam maker cylindrical shell 1 of self foaming agent holding vessel to enter the Venturi tube 3, gases at high pressure spray in the foaming agent solution under pressure, with the foaming agent solution mixed foaming, according to the Venturi tube principle, after gas-liquid flow enters Venturi tube 3, because Venturi tube 3 throat's flow areas are less, the foaming agent solution constricted flow of mist, pressure increases in the time of before the process throat, after foaming agent solution passes through the throat of Venturi tube 3, because Venturi tube 3 back spaces increase, pressure discharges rapidly, gas is expanded foamed, after Venturi tube 3 back segments produce foam, the impeller 5 that is positioned at Venturi tube 3 rears is pushed rotation under the impact of foam stream, the rotation of impeller 5 makes further refinement and even of foam, flow out from outlet 8 mixer 7 backs that foam continues to flow through impeller 5 rears, the foam that produces through foam maker can directly spray and take out, and covers the dirt source.

Really, technical conceive of the present utility model is not limited in the foregoing description, can also obtain many different concrete schemes according to design of the present utility model, for example, all right filling glass ball in the mixer, the quantity of mixer can be provided with the 2-3 section as required, in addition, feed pipe also can be directly and Venturi tube link (Fig. 2), when feed pipe and Venturi tube UNICOM, on the Venturi tube tube wall a plurality of charging holes need not be set in addition, the outlet that feed pipe is positioned on the Venturi tube is charging hole, all should be included within the described scope of claim such as these changes and equivalent transformation.

Claims

1. foam maker comprises the foam maker cylindrical shell, it is characterized in that, also comprises:

Be arranged at the air inlet pipe of described foam maker barrel front end, described air inlet pipe and air compressor link;

Be arranged at the Venturi tube in the described foam maker cylindrical shell, described Venturi tube throat leading portion tube wall is provided with charging hole;

Be arranged at the feed pipe on the described foam maker cylindrical shell barrel;

Be arranged at the impeller support at described foam maker cylindrical shell inner venturi tube rear, on the described impeller support impeller be installed;

Be arranged at the mixer at described foam maker cylindrical shell internal lobe wheel support rear, be filled with irregular column medium in the described mixer;

Be arranged at the outlet of described foam maker cylinder back-end.

2. foam maker according to claim 1 is characterized in that: described charging hole is the through hole that is arranged at intervals on the Venturi tube tube wall.

3. foam maker according to claim 1 is characterized in that: described feed pipe and described Venturi tube link, and the outlet of described feed pipe is described charging hole.