CN212594864U

CN212594864U - Aeration oxygen lance and desulfurization system based on same

Info

Publication number: CN212594864U
Application number: CN202021194025.7U
Authority: CN
Inventors: 聂江宁; 凌斌; 赵云清
Original assignee: Jiangsu Lanshan Environment Technology Co ltd
Current assignee: Jiangsu Lanshan Environment Technology Co ltd
Priority date: 2020-06-24
Filing date: 2020-06-24
Publication date: 2021-02-26
Anticipated expiration: 2030-06-24

Abstract

The utility model provides an aeration oxygen rifle and be based on desulfurization system of aeration oxygen rifle, the aeration oxygen rifle includes gas transmission pipeline and at least one bubble refining tank, the bubble refining tank bottom is uncovered, and left and right both sides wall is respectively opened has a set of bleeder vent, the bleeder vent is sharp angle hole that the tip faces up, and the air current is followed when passing through in the bleeder vent, form small bubble, and simultaneously, the middle part of bubble refining tank is equipped with longitudinal baffle, can prevent that rivers from controlling the lateral wall bleeder vent between horizontal flow, the effect that the weakening bubble refined. The utility model discloses the aeration oxygen rifle has the advantage that the aeration is efficient and easy to maintain, simultaneously, the structural design of aeration oxygen rifle is fit for using in the bottom of desulfurization absorption tower, with the help of the thick liquid that flows, can break the bubble dispersion that the aeration oxygen rifle sees through into more tiny bubble, further improves aeration efficiency, and engineering implementation cost is low.

Description

Aeration oxygen lance and desulfurization system based on same

Technical Field

The utility model belongs to gas-liquid mass transfer reaction equipment field specifically is an aeration oxygen rifle and is based on desulfurization system of aeration oxygen rifle.

Background

Aeration is a process of forcibly transferring oxygen in the air into liquid, and aims to ensure that enough dissolved oxygen is obtained in a water body to participate in liquid phase reaction, such as the flue gas desulfurization process of a calcium method and an ammonia method, sulfite is converted into sulfate through aeration, and organic matters are decomposed through aeration in a sewage treatment process, so that the organic matters in the water body are decomposed through aeration. In practice, the bubble is usually by the direct water of discharging of gas outlet hole, if the diameter of gas outlet hole is bigger, can influence gas-liquid mass transfer efficiency, and aeration efficiency can reduce promptly, and if adopt less aeration hole to give vent to anger, is blockked up by impurity again easily, so current tubular aeration equipment ubiquitous bubble of drum-in is bigger partially, the lower problem of aeration efficiency.

Disclosure of Invention

The technical purpose of the utility model is to provide an aeration oxygen lance and based on desulfurization system of aeration oxygen lance to improve the not enough of prior art.

The technical scheme of the utility model is that:

an aeration oxygen lance comprises a gas transmission pipeline and at least one bubble refining groove, and is characterized in that:

the air bubble refining tank is of a box body structure with an open bottom, a group of air holes are respectively formed in the left side wall and the right side wall of the air bubble refining tank, the air holes are acute angle holes with upward pointed ends, the top ends of the sharp angles of each group of air holes are at the same horizontal height, and when air flow entering the air bubble refining tank through an air conveying pipeline passes through the air holes, tiny air bubbles are formed;

the middle part of bubble refining tank is equipped with longitudinal baffle, longitudinal baffle's preceding, back both ends respectively with before the bubble refining tank, back lateral wall fixed connection, leave the interval between longitudinal baffle's top and the bubble refining tank roof, and longitudinal baffle's top height will be higher than the top height of bleeder vent.

On the basis of the above scheme, a further improved or preferred scheme further comprises: the air conveying pipeline is connected to the top of the bubble refining groove, an air inlet of the bubble refining groove is located right above the longitudinal partition plate, and air inlet flow is divided into two parts by the longitudinal partition plate and respectively enters the cavities on two sides of the longitudinal partition plate.

The top of the bubble fining tank is an arched top plate which is connected with the side wall of the bubble fining tank in a smooth transition way.

The gas transmission pipeline comprises a gas distribution cavity, gas outlets in one-to-one correspondence with the bubble refining grooves are formed in the bottom of the gas distribution cavity, gas inlets of the gas distribution cavity are connected with the gas header pipe, and the gas outlets are respectively connected with the corresponding bubble refining grooves through gas branch pipes.

The gas distribution cavity is a flat reducing pipe section, the side surface of the gas distribution cavity is wide at the top and narrow at the bottom, the front surface of the gas distribution cavity is narrow at the top and wide at the bottom, and the gas distribution cavity spans a plurality of bubble thinning grooves.

A desulfurization system is provided with a desulfurization absorption tower and is characterized in that an aeration oxygen lance is arranged in a slurry tank of the desulfurization absorption tower, a slurry stirrer is arranged in the slurry tank, the aeration oxygen lance is arranged beside the slurry stirrer, and when the slurry stirrer works, slurry flows and flows through slurry on the outer side wall of a bubble refining tank to disperse and smash bubbles which are permeated from air holes into more tiny bubbles.

Has the advantages that:

the utility model discloses aeration oxygen rifle utilizes bleeder vent closed angle structure department clearance to tend to infinitesimal characteristics, cuts the bubble for small bubble, compares in round hole aeration equipment, can provide the bubble that refines more, and is difficult for blockking up, and the solid matter that the bubble refines the inslot and dams can be followed its bottom and uncovered discharge, has aeration efficiency height and the advantage of easy to maintain. Meanwhile, the structural design of the aeration oxygen lance is suitable for being applied to the bottom of a desulfurization absorption tower, bubbles penetrating out of the aeration oxygen lance can be dispersed and broken into finer bubbles by virtue of flowing slurry, the aeration efficiency is further improved, the method can be implemented in the existing desulfurization system, and the engineering implementation cost is low.

Drawings

FIG. 1 is a schematic front view of an aerated oxygen lance of example 1;

FIG. 2 is a schematic side view of an aerated oxygen lance of example 1;

FIG. 3 is a schematic front view of an aerated oxygen lance of example 2;

FIG. 4 is a schematic side view of an aerated oxygen lance of example 2.

Detailed Description

In order to clarify the technical solution and the working principle of the present invention, the present invention will be further described with reference to the accompanying drawings and specific embodiments.

Example 1:

the aeration oxygen lance shown in figures 1 and 2 comprises a gas pipeline and a plurality of bubble refining grooves 3.

The bubble refining tank 3 is of a box body structure and is provided with a top plate and a side wall, the bottom of the bubble refining tank is open, the top plate is an arc-shaped arched top plate and is connected with the side wall of the bubble refining tank in a smooth transition mode, and therefore gas pressure loss can be reduced.

The left side wall and the right side wall of the bubble fining groove 3 are respectively provided with a group of air holes 3-2 along the longitudinal direction, the air holes are acute angle holes with upward pointed ends, the shapes of all the air holes 3-2 are the same, and the top ends of the sharp angles are also at the same horizontal height.

The middle part of the bubble fining groove 3 is provided with a longitudinal clapboard 3-1, the front end and the rear end of the longitudinal clapboard 3-1 are respectively and fixedly connected with the front side wall and the rear side wall of the bubble fining groove 3, a certain distance is reserved between the top end of the longitudinal clapboard 3-1 and the arched top plate, and the top end of the longitudinal clapboard 3-1 is higher than the top end of the air vent, so that the transverse flow of water flow between the air vents on the left side wall and the right side wall can be prevented, and the bubble fining effect can be weakened.

The gas transmission pipeline comprises a gas main pipe 1 and a plurality of gas branch pipes 2, wherein the gas main pipe 1 is connected with an external fan, the gas branch pipes 2 correspond to the bubble refining grooves 3 one by one, and the gas main pipe 1 is connected with the corresponding bubble refining grooves 3 through the gas branch pipes 2.

The air inlet of the bubble-refining tank 3 is arranged in the middle of the arched top plate, the air branch pipe 2 is connected with the air inlet, the air inlet direction of the bubble-refining tank 3 is opposite to the longitudinal partition plate 3-1, the air inlet flow is divided into two by the longitudinal partition plate 3-1 and respectively enters the chambers at two sides of the longitudinal partition plate 3-1, and the air flow is broken into tiny bubbles when passing through the air holes in the side wall of the bubble-refining tank 3.

Example 2:

as shown in fig. 3 and 4, the present embodiment is improved on the basis of embodiment 1. Unlike embodiment 1, in this embodiment, the gas delivery line includes a gas distribution chamber 4.

The bottom of the gas distribution cavity 4 is provided with gas outlets in one-to-one correspondence with the bubble refining grooves 3, the gas inlets of the gas distribution cavity 4 are connected with the gas header pipe 1, and the gas outlets are respectively connected with the corresponding bubble refining grooves 3 through gas branch pipes 2.

The gas distribution chamber 4 is a flat variable diameter pipe section, as shown in fig. 4, which is wide at the top and narrow at the bottom on the side, as shown in fig. 3, and which is narrow at the top and wide at the bottom on the front, and spans a plurality of bubble-fining grooves 3.

In this embodiment, the structure of the bubble-reducing tank 3 is the same as that of embodiment 1.

Example 3 (not shown)

The aeration oxygen lance of the utility model is usually used for the oxidation of sulfite in a calcium desulphurization process system.

The desulfurization system based on the aeration oxygen lance is provided with a desulfurization absorption tower, a slurry tank of the desulfurization absorption tower is provided with a slurry stirrer, and the aeration oxygen lance is used in the embodiment 1 or the embodiment 2. The aeration oxygen lance is arranged beside the slurry stirrer. When the slurry stirrer works, the slurry flows rapidly, and the slurry flowing through the outer side wall of the bubble refining tank 3 can disperse and break the bubble groups penetrating through the air holes into more tiny bubbles.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration only, and that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims, specification and equivalents thereof.

Claims

1. The utility model provides an aeration oxygen rifle, includes gas transmission pipeline and at least one bubble refining tank (3), its characterized in that:

the air bubble refining tank (3) is of a box body structure with an open bottom, a group of air holes (3-2) are respectively formed in the left side wall and the right side wall of the air bubble refining tank (3), the air holes (3-2) are acute angle holes with upward pointed ends, the top ends of the sharp angles of each group of air holes (3-2) are located at the same horizontal height, and when air flow entering the air bubble refining tank (3) through an air conveying pipeline passes through the air holes (3-2), tiny air bubbles are formed;

the air bubble refining tank is characterized in that a longitudinal partition plate (3-1) is arranged in the middle of the air bubble refining tank (3), the front end and the rear end of the longitudinal partition plate (3-1) are fixedly connected with the front side wall and the rear side wall of the air bubble refining tank (3) respectively, a space is reserved between the top end of the longitudinal partition plate (3-1) and the top plate of the air bubble refining tank (3), and the top end of the longitudinal partition plate (3-1) is higher than the top end of the air vent.

2. An aerated oxygen lance according to claim 1 wherein the gas pipeline is connected to the top of the bubble-fining tank (3), the gas inlet of the bubble-fining tank (3) is located above the longitudinal partition (3-1), and the gas inlet flow is divided into two by the longitudinal partition (3-1) and enters the chambers on both sides of the longitudinal partition (3-1).

3. An aerated oxygen lance according to claim 1 wherein the top of the bubble-fining tank (3) is an arched roof which is in smooth transition connection with the side wall of the bubble-fining tank (3).

4. An aeration oxygen lance according to claim 1, 2 or 3, wherein the gas transmission pipeline comprises a gas distribution cavity (4), the bottom of the gas distribution cavity (4) is provided with gas outlets which correspond to the bubble refinement tanks (3) one by one, the gas inlets of the gas distribution cavity (4) are connected with the gas main pipe (1), and the gas outlets are respectively connected with the corresponding bubble refinement tanks (3) through gas branch pipes (2).

5. An aerated oxygen lance according to claim 4 wherein the gas distribution chamber (4) is a flat tapered pipe section with wide top and narrow bottom sides and wide top and wide bottom sides, spanning the plurality of bubble-fining channels (3).

6. A desulfurization system is provided with a desulfurization absorption tower, and is characterized in that a slurry pool of the desulfurization absorption tower is provided with an aeration oxygen lance as defined in any one of claims 1 to 5, a slurry stirrer is arranged in the slurry pool, the aeration oxygen lance is arranged beside the slurry stirrer, and when the slurry stirrer works, slurry flows and flows through the slurry on the outer side wall of a bubble refining tank (3) to disperse and break bubbles penetrating out of air holes (3-2) into more tiny bubbles.