CN116173623A

CN116173623A - Dynamic wave outlet foam-catching device and use method thereof

Info

Publication number: CN116173623A
Application number: CN202310239955.1A
Authority: CN
Inventors: 李正贤; 林天云; 王彬; 水海华; 陈治康
Original assignee: Tongling Nonferrous Metals Group Co Ltd
Current assignee: Tongling Nonferrous Metals Group Co Ltd
Priority date: 2023-03-14
Filing date: 2023-03-14
Publication date: 2023-05-30

Abstract

The utility model discloses a dynamic wave outlet foam-catching device and a use method thereof, the dynamic wave outlet foam-catching device comprises a dynamic wave washer, wherein a foam-catching mechanism is arranged above an air inlet in the dynamic wave washer, the foam-catching mechanism comprises a round table type baffle plate which is fixedly connected with the inner wall of the dynamic wave washer in a sealing way, a plurality of radial channels are arranged on the round table type baffle plate, conical flow guide blocks with cone heads facing downwards are arranged in the radial channels, the conical flow guide blocks are in clearance fit with the inner wall of the radial channels, and the top of each conical flow guide block is positioned above the round table type baffle plate and bends downwards to form a flanging; the middle part of the flanging is provided with an open slot along the peripheral surface. The utility model has the beneficial effects that dust-containing flue gas is split through the radial channel, the contact area of the flue gas and the conical flow guide block is enlarged through the contact of the conical flow guide block and the flue gas, the defoaming effect is improved, the defoamed flue gas is discharged from the open slot, and the foam capturing efficiency is improved on the premise of reducing the pressure drop as much as possible.

Description

Dynamic wave outlet foam-catching device and use method thereof

Technical Field

The utility model relates to washing and purifying of wet-process environment dust collection tail gas in the pyrite acid making industry, in particular to a dynamic wave outlet foam capturing device and a using method thereof.

Background

In the pyrite acid making industry, as cyclone dust collection or electric dust collection and other equipment are not thorough in dust collection, part of dust still enters a purification system along with the flue gas. In the purification system, part of dust is mixed in foam liquid after the flue gas is washed and purified by dynamic waves, and enters the gas cooling tower along with the flue gas, and the dust entrained in the foam liquid is easily accumulated in a liquid dividing tank, a filler and the like of the cooling tower, so that the distribution of spray liquid or air flow is influenced, and the gas cooling effect is not ideal.

As disclosed in chinese patent publication No. CN112495069a, an inner cylinder and an outer cylinder form an interlayer space, the inner cylinder is connected with a hydrogen sulfide gas inlet, a cylinder flange gland at the top of the inner upper cylinder is connected with a hydrogen sulfide gas outlet, the outer cylinder is connected with a jacket steam inlet and outlet, a foam capturing element assembly is mounted on the interlayer, the foam capturing element assembly comprises an upper screen fixing grid, a foam capturing screen, a lower screen supporting grid and a sleeve, the foam capturing screen is arranged in the inner layer and the outer layer of the sleeve, the interlayer space between the inner layer and the outer layer is communicated with a steam inlet and outlet of the foam capturing element assembly, and the bottom of the inner cylinder is connected with a liquid sulfur outlet; the foam-catching silk screen is integrally and obliquely arranged, the lower end of the inclined surface is fixedly provided with a flow-assisting fin, and the tail end of the flow-assisting fin is obliquely downwards arranged. The foam-removing device removes foam by utilizing the inclined foam-removing wire mesh, and the foam-removing wire mesh has the advantages of small contact area with the hydrogen sulfide gas carrying the liquid sulfur foam, unsatisfactory foam-removing effect, more tortuous gas ascending path, larger pressure drop of the hydrogen sulfide gas at the outlet of the synthesizing tower and possibility of blocking the foam-removing wire mesh.

Chinese patent publication No. CN209237660U discloses an acid regeneration device for cooling by using a dynamic wave scrubber, which comprises an absorption tower, the absorption tower is in sealing connection with the first scrubber through a first pipeline, the first scrubber is in sealing connection with a second scrubber through a dynamic wave circulating liquid pipeline, a heat exchanger main body is installed in the dynamic wave circulating liquid pipeline, a control valve is installed at one end of the dynamic wave circulating liquid pipeline, the second scrubber is connected with a chimney main body through a second pipeline, an exhaust gas fan is installed in the second pipeline, clamping grooves are formed in two sides of the inner wall of the chimney main body, a welding plate is connected with a water drop separator through a hinge rod, and heat exchange fins are installed in the heat exchanger main body. The apparatus did not perform the defoaming treatment in a dynamic wave scrubber.

Disclosure of Invention

The utility model aims to solve the technical problems that the existing flue gas with dust cannot be effectively separated in a dynamic wave scrubber, or the separation effect is poor although a separation mechanism is arranged, and provides a dynamic wave outlet foam-catching device and a using method thereof.

The technical scheme of the utility model is as follows: the dynamic wave outlet foam-catching device comprises a dynamic wave washer provided with an air inlet, wherein a foam-catching mechanism is arranged above the air inlet in the dynamic wave washer, the foam-catching mechanism comprises a round table-shaped baffle plate which is fixedly connected with the inner wall of the dynamic wave washer in a sealing way, a plurality of radial channels are formed on the round table-shaped baffle plate, conical flow guide blocks with downward conical heads are arranged in the radial channels, the conical flow guide blocks are in clearance fit with the inner wall of the radial channels, the top of each conical flow guide block is positioned above the round table-shaped baffle plate and bends downwards to form a turned edge, and the bottom of the turned edge is in sliding fit with the upper surface of the round table-shaped baffle plate; the middle part of the flanging is provided with an open slot along the peripheral surface.

The improvement of the scheme is that the upper surface of the round table type baffle is rotationally connected with a vertical rotating shaft, a turntable is sleeved outside the vertical rotating shaft, the outer peripheral surface of the turntable is attached to the flanging, a plurality of blades are fixedly connected to the part, located on the turntable, of the vertical rotating shaft, and the blades extend outwards horizontally and do not exceed the outside of the turntable.

In the above scheme, the outer surface of the conical flow guide block is provided with threads.

In the above scheme, the conical flow guide block is an open cavity with a hollow inside.

In the scheme, the outer peripheral surface of the rotary disc is meshed and matched with the flanging.

The scheme is further improved in that the upper surface of the round table type baffle is provided with an annular groove, and the bottom of the flanging is in sliding fit with the annular groove.

A further improvement of the scheme is that the bottom of the flanging is provided with a plurality of notches, and balls are arranged in a space surrounded by the notches and the annular groove.

The application method of the dynamic wave outlet foam capturing device comprises the following steps: the flue gas with dust enters the air inlet, then upwards enters a plurality of radial channels, is guided by the diversion of the conical diversion block and is discharged from the open slot, the dust is fully contacted with the conical diversion block and is retained in the radial channels, finally falls into the bottom of the dynamic wave scrubber, and the flue gas after dust separation enters the gas cooling tower.

The utility model has the beneficial effects that dust-containing flue gas is split through the radial channel, the contact area of the flue gas and the conical flow guide block is enlarged through the contact of the conical flow guide block and the flue gas, the defoaming effect is improved, the defoamed flue gas is discharged from the open slot, and the foam capturing efficiency is improved on the premise of reducing the pressure drop as much as possible.

Drawings

FIG. 1 is a schematic diagram of a dynamic wave outlet foam capture device of the present utility model;

FIG. 2 is a top view of the foam capture mechanism of the present utility model;

FIG. 3 is a perspective view of the foam capturing mechanism of the present utility model;

FIG. 4 is a top view of a preferred embodiment of the foam capture mechanism of the present utility model;

FIG. 5 is a schematic view of the vertical shaft, turntable and blade assembly of FIG. 4;

in the figure, 1, a round table type baffle plate, 2, a radial channel, 3, a conical flow guide block, 4, a flanging, 5, an open slot, 6, a vertical rotating shaft, 7, a turntable, 8 and a blade.

Description of the embodiments

The technical solutions in the embodiments of the present utility model are clearly and completely described below with reference to the accompanying drawings. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. Based on the embodiments of the present utility model, all other embodiments of the utility model are within the scope of the present utility model for those of ordinary skill in the art without making any inventive effort.

As shown in fig. 1-3, the dynamic wave outlet foam-catching device comprises a dynamic wave scrubber with an air inlet, wherein a foam-catching mechanism is arranged above the air inlet in the dynamic wave scrubber, the foam-catching mechanism comprises a round table-shaped baffle 1 which is in sealing and fixedly connected with the inner wall of the dynamic wave scrubber, the round table-shaped baffle is matched with the inner wall of the dynamic wave scrubber in shape and is in sealing connection with the inner wall of the dynamic wave scrubber, a plurality of radial channels 2 are formed on the round table-shaped baffle, the radial channels can be used selectively according to the flow of flue gas, conical guide blocks 3 with cone heads facing downwards are arranged in the radial channels, the conical guide blocks are in clearance fit with the inner walls of the radial channels, and in order to reduce the weight of the conical guide blocks, the conical guide blocks can be designed into an open cavity with hollow inside, so that if the conical guide blocks are too light to be jacked by the flue gas, the contact time of the flue gas and the conical guide blocks are prolonged, the top of the conical guide blocks are positioned above the round table-shaped baffle and downwards to form 4, and the bottom of the flanging is in sliding fit with the upper surface of the round table-shaped baffle; the middle part of the flanging is provided with an open slot 5 along the peripheral surface, and the open slot can be a continuous annular curve or a plurality of intermittent arc curves.

As a preferable example of the utility model, a power compensation mechanism can be designed beside each radial channel, because the smoke inevitably has pressure drop loss in the process of passing through the radial channels and the open slots, in order to compensate the loss, as shown in fig. 4-5, the upper surface of the round table type baffle is rotatably connected with a vertical rotating shaft 6, a rotary table 7 is sleeved outside the vertical rotating shaft, the peripheral surface of the rotary table is jointed with a turnup, a plurality of blades 8 are fixedly connected to the part of the vertical rotating shaft on the rotary table, and the blades extend horizontally outwards and do not exceed the rotary table, so that when the smoke is discharged from the open slots, the blades drive the blades to rotate, the vertical rotating shaft drives the rotary table to rotate, the turnup drives the turnup to rotate, the turnup drives the conical guide block to rotate, and simultaneously drives the smoke to rotate, thereby compensating the pressure drop loss.

In order to promote the transmission of the turntable and the flanging, the outer peripheral surface of the turntable is meshed and matched with the flanging, and particularly, the outer peripheral surface of the turntable and the corresponding outer surface of the flanging are provided with meshed external threads.

In order to enable the conical flow guide block to rotate smoothly, an annular groove is formed in the upper surface of the round table type baffle, and the bottom of the flanging is in sliding fit with the annular groove. Furthermore, the bottom of the flanging is provided with a plurality of notches, and the space surrounded by the notches and the annular groove is internally provided with balls, so that friction resistance is reduced through the balls.

As another preferable example of the utility model, the external surface of the conical flow guiding block is provided with threads, when the smoke rises along the external surface of the conical flow guiding block, the rotating airflow can be generated, the contact area is further increased, and the resistance loss is smaller.

Claims

1. The dynamic wave outlet foam-catching device comprises a dynamic wave scrubber provided with an air inlet and is characterized in that: the dynamic wave scrubber is characterized in that a foam capturing mechanism is arranged above the air inlet in the dynamic wave scrubber and comprises a round table-shaped baffle (1) which is fixedly connected with the inner wall of the dynamic wave scrubber in a sealing way, a plurality of radial channels (2) are formed in the round table-shaped baffle, conical flow guide blocks (3) with cone heads facing downwards are arranged in the radial channels, the conical flow guide blocks are in clearance fit with the inner walls of the radial channels, the top of each conical flow guide block is positioned above the round table-shaped baffle and bends downwards to form a turned edge (4), and the bottom of the turned edge is in sliding fit with the upper surface of the round table-shaped baffle; an open slot (5) is formed in the middle of the flanging along the peripheral surface of the flanging.

2. The dynamic wave outlet foam capture device of claim 1, wherein: the upper surface rotation of round platform type baffle is connected with perpendicular pivot (6), perpendicular pivot overcoat is equipped with carousel (7), the outer peripheral face and the turn-ups laminating of carousel, the part rigid coupling that perpendicular pivot is located the carousel has a plurality of blades (8), the blade level outwards extends and does not exceed outside the carousel.

3. A dynamic wave outlet foam trap as claimed in claim 1 or 2, characterized in that: the outer surface of the conical flow guide block is provided with threads.

4. A dynamic wave outlet foam trap as claimed in claim 1 or 2, characterized in that: the conical flow guide block is an open cavity with a hollow inside.

5. The dynamic wave outlet foam capture device of claim 2, wherein: the outer peripheral surface of the rotary disc is meshed and matched with the flanging.

6. A dynamic wave outlet foam trap as claimed in claim 1 or 2, characterized in that: the upper surface of round platform type baffle has seted up the ring channel, the bottom and the ring channel sliding fit of turn-ups.

7. The dynamic wave outlet foam capture device of claim 6, wherein: the bottom of the flanging is provided with a plurality of notches, and balls are arranged in a space surrounded by the notches and the annular groove.

8. A method of using a dynamic wave outlet foam device as defined in any one of claims 1 to 7, characterized by: the method comprises the following steps: the flue gas with dust enters the air inlet, then upwards enters a plurality of radial channels, is guided by the diversion of the conical diversion block and is discharged from the open slot, the dust is fully contacted with the conical diversion block and is retained in the radial channels, finally falls into the bottom of the dynamic wave scrubber, and the flue gas after dust separation enters the gas cooling tower.