CN212174511U

CN212174511U - Diffusion disc for air-float water purification

Info

Publication number: CN212174511U
Application number: CN202020807905.0U
Authority: CN
Inventors: 李曼; 邢伟明; 刘迪; 郭朔泽; 唐璐; 董晓明; 刘雅婷; 宋薇
Original assignee: Henan Vocational College of Water Conservancy and Environment
Current assignee: Henan Vocational College of Water Conservancy and Environment
Priority date: 2020-05-15
Filing date: 2020-05-15
Publication date: 2020-12-18
Anticipated expiration: 2030-05-15

Abstract

The utility model discloses a diffusion disc for air-float water purification, which is provided with an inner cavity, micropores for forming bubbles are uniformly distributed on the disc wall of the diffusion disc, the center of the top wall of the diffusion disc is upwards connected with a breather pipe for introducing compressed air, and the breather pipe is provided with a breather valve; the direction deviating from the inner cavity is outward, the outer end part of each micropore is respectively provided with a rubber plate, one end of each rubber plate is fixedly connected with the pore wall of the micropore, and the end is a connecting end. After stopping letting in compressed air to the diffusion disc, under the elasticity of the rubber plate and the elasticity of the elastic ribs, the rubber plate is embedded into the upper part of the micropores and tightly pressed on the annular step, so that the micropores are sealed, and dirt in water is prevented from being clamped into the micropores to form blockage.

Description

Diffusion disc for air-float water purification

Technical Field

The utility model belongs to the technical field of environmental engineering technique and specifically relates to air supporting technique.

Background

The air flotation process is a process of utilizing highly dispersed micro-bubbles as carriers to adhere pollutants in sewage and enabling the pollutants to float to the water surface with density smaller than that of water so as to realize solid-liquid or liquid-liquid separation.

In the air floatation system, compressed air needs to be introduced into a diffusion device (a diffusion plate, a diffusion disc and other devices for dispersing gas to generate bubbles), the diffusion device is positioned in water, and the gas forms fine bubbles after passing through the diffusion device and enters the water to perform an air floatation process.

This method has the advantages of simplicity and ease of use, and low cost, but once the diffuser loses air pressure (e.g., when not in operation), dirt in the water tends to settle down and clog the pores of the air diffuser. The easy blockage and the inconvenient maintenance limit the application of the method.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a diffusion dish that is used for sewage treatment, can prevent micropore jam.

In order to realize the aim, the utility model provides a diffusion disc for air-float water purification, which is provided with an inner cavity, micropores for forming bubbles are uniformly distributed on the disc wall of the diffusion disc, the center of the top wall of the diffusion disc is upwards connected with a breather pipe for introducing compressed air, and the breather pipe is provided with a breather valve;

the direction deviating from the inner cavity is outward, the outer end part of each micropore is respectively provided with a rubber plate, one end of each rubber plate is fixedly connected with the pore wall of the micropore, and the end is a connecting end.

The diameter of the outer end part of the micropore is larger than that of the inner end part of the micropore, and an annular step is formed at the reducing position; the connecting end of the rubber plate is connected with the annular step, and the length of the connecting part of the rubber plate and the annular step is one sixteenth to one eighth of the perimeter of the annular step.

Connecting rods are embedded in the rubber plates, extend out of the rubber plates and are nailed into the disc walls of the diffusion discs at the annular steps.

The diapire of the relative tip of the link of rubber slab is connected with the elasticity muscle downwards, and the elasticity muscle is connected with micropore's lateral wall bottom downwards.

The utility model discloses have following advantage:

the rubber plate has elasticity, and when the breather pipe let in compressed air to the diffusion dish, the relative end of the link of rubber plate was upwards jack-up to make gaseous outside outflow through the clearance between the pore wall of rubber plate and micropore, thereby get into the aquatic and form tiny bubble. When the breather pipe stops letting in compressed air in to the diffusion dish, the rubber slab falls back into the micropore under the effect of self elasticity to seal the micropore, thereby prevent that the aquatic filth card from blockking up the micropore.

When being equipped with the elasticity muscle, the utility model discloses can ensure the during stop work better (when stopping letting in compressed air), the rubber slab can the answer normal position.

The setting of annular step is convenient for firmly connect the rubber slab on the one hand, and on the other hand can enlarge the fitting surface between rubber slab and the micropore pore wall (has increased the cooperation area of rubber slab and annular step), when stopping letting in compressed air, prevents better that the filth from getting into and forming the jam in the micropore to the position of the bottommost (inner) that can fix a position the rubber slab prevents that the elasticity muscle from pulling the rubber slab downwards too much.

The length of the connecting part of the rubber plate and the annular step is one sixteenth to one eighth of the perimeter of the annular step, so that firm connection can be ensured, and the rubber plate is prevented from being difficult to be opened outwards by compressed air due to overlong connecting part.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a schematic top view of the present invention;

FIG. 3 is a schematic cross-sectional view of a micro-hole with a rubber sheet closing the micro-hole;

FIG. 4 is a schematic cross-sectional view of the micro-holes when the rubber sheet is opened outward by introducing compressed air. The direction of the arrows in fig. 4 is the direction of the air flow.

Detailed Description

As shown in fig. 1 to 4, the utility model provides a diffusion disc 1 for air-float water purification, the diffusion disc 1 has an inner cavity 2, micropores 4 for forming bubbles are uniformly distributed on a disc wall 3 (the disc wall 3 here specifically refers to the top wall and/or the bottom wall and/or the side wall of the diffusion disc) of the diffusion disc 1, a vent pipe 5 for introducing compressed air is upwards connected at the center of the top wall of the diffusion disc 1, and a vent valve 6 is arranged on the vent pipe 5;

the direction deviating from the inner cavity 2 is outward, the outer end part of each micropore 4 is respectively provided with a rubber plate 7, one end of the rubber plate 7 is fixedly connected with the hole wall of the micropore 4, and the end is a connecting end.

The diameter of the outer end part of the micropore 4 is larger than that of the inner end part of the micropore 4, and an annular step 8 is formed at the reducing position; the connecting end of the rubber plate 7 is connected with the annular step 8, and the length of the connecting part of the rubber plate 7 and the annular step 8 is one sixteenth to one eighth of the circumference of the annular step 8.

In the rubber plate 7, tie rods 9 are embedded, the tie rods 9 extending out of the rubber plate 7 and being nailed into the disc wall 3 (i.e. the top and/or bottom and/or side wall) of the diffusion disc 1 at the annular step 8. The function of the tie rods 9 is to increase the degree of firmness of the connection between the rubber plate 7 and the disc wall of the diffusion disc 1.

The bottom wall of the opposite end of the connecting end of the rubber plate 7 is connected with an elastic rib 10 downwards, and the elastic rib 10 is connected with the bottom of the side wall of the micropore 4 downwards.

During the use, will the utility model discloses a diffusion dish 1 is put into the aquatic for the air supporting water purification, and breather pipe 5 is connected with external air compressor machine or air pump or high-pressure gas pitcher.

When the device works, the vent valve 6 is opened, the external air pump is started, after compressed air is introduced into the diffusion disc 1, the rubber plate 7 is lifted outwards under the pressure action of the compressed air, and air flows outwards through a gap between the rubber plate 7 and the hole wall of the micropore 4, so that the air enters water to form tiny bubbles; when a large amount of micro bubbles float upwards, the micro bubbles are combined with dirt in water, so that the dirt floats upwards, and solid-liquid separation is realized.

After the compressed air is stopped to be introduced into the diffusion disc 1, the rubber plate 7 is embedded into the upper part of the micropore 4 and tightly pressed on the annular step 8 under the action of the elasticity of the rubber plate 7 and the elasticity of the elastic rib 10, so that the micropore 4 is sealed, and the dirt in water is prevented from being clamped into the micropore 4 to form blockage.

The above embodiments are only used for illustrating but not limiting the technical solutions of the present invention, and although the present invention is described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: the present invention may be modified or substituted with equivalents without departing from the spirit and scope of the invention, which should be construed as being limited only by the claims.

Claims

1. The diffusion disc for air floatation water purification is characterized in that: the diffusion disc is provided with an inner cavity, micropores for forming bubbles are uniformly distributed on the disc wall of the diffusion disc, a vent pipe for introducing compressed air is upwards connected at the center of the top wall of the diffusion disc, and a vent valve is arranged on the vent pipe;

2. The diffusion disc for air-float water purification of claim 1, wherein: the diameter of the outer end part of the micropore is larger than that of the inner end part of the micropore, and an annular step is formed at the reducing position; the connecting end of the rubber plate is connected with the annular step, and the length of the connecting part of the rubber plate and the annular step is one sixteenth to one eighth of the perimeter of the annular step.

3. The diffusion disc for air-float water purification of claim 2, wherein: connecting rods are embedded in the rubber plates, extend out of the rubber plates and are nailed into the disc walls of the diffusion discs at the annular steps.

4. The diffusion disk for air-bearing water purification according to any one of claims 1 to 3, wherein: the diapire of the relative tip of the link of rubber slab is connected with the elasticity muscle downwards, and the elasticity muscle is connected with micropore's lateral wall bottom downwards.