CN212564884U

CN212564884U - High-temperature dust-containing flue gas guiding device

Info

Publication number: CN212564884U
Application number: CN202021024665.3U
Authority: CN
Inventors: 刘永涛; 张东升; 乔宝; 王翠翠
Original assignee: Anhui Conch Construction Materials Design Institute Co Ltd
Current assignee: Anhui Conch Construction Materials Design Institute Co Ltd
Priority date: 2020-06-05
Filing date: 2020-06-05
Publication date: 2021-02-19
Anticipated expiration: 2030-06-05

Abstract

The utility model provides a high temperature dusty flue gas guiding device, belongs to novel dry process cement clinker production technology technical field, and this guiding device includes the guide plate that connects return bend and inside setting, and the guide plate extends to the inside of joint return bend along 1/4 ~ 1/2 of joint return bend port diameter, and the curvature radius of guide plate equals with the curvature radius of joint return bend, and the both sides of guide plate link to each other with the inner wall welding of joint return bend, the beneficial effects of the utility model are that, this guiding device simple structure is stable, and simple to operate makes the gas flow velocity of flowing through the joint return bend stable, and the dust distributes evenly, can satisfy the operation requirement of low reaches equipment, better performance of equipment has prolonged the life of equipment.

Description

High-temperature dust-containing flue gas guiding device

Technical Field

The utility model relates to a novel dry method cement clinker production technology technical field especially relates to a high temperature dusty flue gas guiding device.

Background

A large amount of high-temperature dust-containing flue gas is generated in the cement production process, and the flue gas needs to be purified through the procedures of denitration, dust removal, desulfurization and the like, and can be discharged into the atmosphere after meeting the emission standard of the atmospheric pollutants specified by the national standard. Each flue gas purification device is connected by a hot air pipeline. Before the high-temperature dust-containing flue gas enters the equipment, the flow field is stable and the components are uniform, so that the performance of the equipment is better exerted, and the service life of the equipment is prolonged. Under normal conditions, as long as the straight section of the hot air pipeline before entering the equipment is long enough, the flue gas components can be ensured to be uniform, but the straight section which is long enough cannot be ensured sometimes due to process arrangement and space size, and the joint elbow is often required to be added for guiding the flue gas. When the flue gas passes through the joint return bend, can produce local velocity of flow too fast, the uneven phenomenon of dust concentration, if not handling, can lead to low reaches equipment performance to descend, and local wear is too fast, influences flue gas treatment effect and equipment life.

Therefore, how to make the flow velocity and the components uniform and stable when the flue gas passes through the elbow is the key for ensuring the flue gas treatment effect and prolonging the service life of equipment at present and is also the problem to be solved in the cement production process.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a high temperature dusty flue gas guiding device, through 1/4 ~ 1/2 department installation guide plate at joint return bend port diameter, the gas flow rate that makes the joint return bend of flowing through is stable, dust distributes evenly, can satisfy the operation requirement of low reaches equipment, performance of performance equipment that can be better, the life of extension equipment.

In order to achieve the above object, the present invention provides a technical solution for solving the technical problem: high temperature dusty flue gas guiding device, including the guide plate of joint return bend and inside setting, the guide plate is along 1/4 ~ 1/2 departments of joint return bend port diameter to the inside of joint return bend extends, the radius of curvature of guide plate with the radius of curvature of joint return bend equals, the both sides of guide plate with the inner wall welding of joint return bend links to each other.

Furthermore, the guide plate is a high-temperature wear-resistant steel plate, and the thickness of the guide plate is 4-6 mm larger than that of the joint elbow.

Further, the joint elbow is set up to the spiral duct, the spiral duct is provided with a plurality of annular protruding muscle along its length direction, the guide plate is formed by the welding of multistage connecting steel plate, the both sides of multistage connecting steel plate welding department be provided with the annular protruding muscle joint complex draw-in groove of spiral duct inner wall.

Further, the joint elbow is a smooth elbow, and the guide plate is an integrated arc-shaped steel plate.

Furthermore, the both ends of joint return bend are provided with the sealing connection section, be provided with the retaining ring on the sealing connection section, the sealing washer has been cup jointed in the outside location of retaining ring, the both ends of guide plate with the both ends parallel and level of joint return bend.

Further, one end of the joint elbow is provided with a manhole door which is convenient for welding the guide plate on the inner wall of the joint elbow.

The utility model has the advantages that:

the utility model discloses a extend the guide plate to the inside of joint return bend along 1/4 ~ 1/2 of joint return bend port diameter, the both sides of guide plate and joint return bend welding can make the high temperature dusty flue gas reposition of redundant personnel through joint return bend department, make the dust distribution more even, reduced the flow of high temperature dusty flue gas at the inboard pipeline of joint return bend simultaneously, reduced the impact and the pressure of high temperature dusty flue gas to the joint return bend inside wall, reduced the speed when high temperature dusty flue gas meets the joint return bend inside wall, make the stability of speed improve; and the curvature radius of the guide plate is equal to that of the joint elbow, so that the bending shape of the guide plate is the same as that of the joint elbow, the high-temperature dust-containing flue gas is prevented from generating larger impact after encountering the guide plate, and the flowing stability of the high-temperature dust-containing flue gas is further improved.

To sum up, this guiding device simple structure is stable, and simple to operate makes the gaseous velocity of flow through the joint return bend stable, dust distribution is even, can satisfy the operation requirement of low reaches equipment, better performance of having given play to equipment, has prolonged the life of equipment.

Drawings

The contents of the various figures of the specification and the labels in the figures are briefly described as follows:

fig. 1 is a schematic structural diagram of a first embodiment of the present invention;

FIG. 2 is a view taken along line A of FIG. 1;

FIG. 3 is a schematic view of the baffle of FIG. 1;

fig. 4 is a schematic structural diagram of a second embodiment of the present invention;

the labels in the above figures are: 1. the structure of the air conditioner comprises a joint bent pipe, 11 spiral air pipes, 111 annular convex ribs, 12 smooth bent pipes, 13 sealing connecting sections, 14 check rings, 15 manhole doors, 2 guide plates, 21 connecting steel plates, 211 clamping grooves and 22 arc steel plates.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments, and the following embodiments are used for illustrating the present invention, but do not limit the scope of the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The utility model discloses specific embodiment does: as shown in fig. 1 to 4, a high temperature dust-containing flue gas guiding device comprises a joint elbow 1 and a guiding plate 2 arranged inside the joint elbow 1, wherein the guiding plate 2 extends to the inside of the joint elbow 1 along the 1/4-1/2 of the diameter of the port of the joint elbow 1, and is optimized, the guiding plate 2 extends to the inside of the joint elbow 1 along the 1/3 of the diameter of the port of the joint elbow 1, so that high temperature dust-containing flue gas passing through the joint elbow 1 can be divided, the dust distribution is more uniform, the flow of the high temperature dust-containing flue gas in an inner side pipeline of the joint elbow 1 is reduced, the impact and pressure of the high temperature dust-containing flue gas on the inner side wall of the joint elbow 1 are reduced, the speed when the high temperature dust-containing flue gas meets the inner side wall of the joint elbow 1 is reduced, the stability of the speed is improved, and the curvature radius of, the bending shape of the guide plate 2 is the same as that of the joint elbow 1, so that the high-temperature dust-containing flue gas is prevented from generating large impact after encountering the guide plate 2, the flowing stability of the high-temperature dust-containing flue gas is further improved, and the two sides of the guide plate 2 are welded with the inner wall of the joint elbow 1, so that the whole structure is more stable after installation.

Specifically, guide plate 2 wherein sets up to high temperature wear-resisting steel sheet, and guide plate 2's thickness is greater than 1 thickness 4mm ~ 6mm of joint return bend, and optimally, guide plate 2's thickness is greater than 1 thickness 4mm of joint return bend, has played reinforced effect to joint return bend 1 on the one hand, and on the other hand can resist the impact of high temperature dusty flue gas, has reduced guide plate 2's deformation risk, makes the water conservancy diversion effect better.

Specifically, the both ends of joint return bend 1 wherein are provided with sealing connection section 13, are provided with retaining ring 14 on the sealing connection section 13, and the sealing washer has been cup jointed in the outside location of retaining ring 14, have improved the leakproofness of connecting, and the both ends of guide plate 2 and the both ends parallel and level of joint return bend 1 have prevented that high temperature dusty flue gas from meetting honeycomb duct 2 and producing the problem of big impact in the pipeline of being connected with joint return bend 1, have further improved the stability that high temperature dusty flue gas flows.

In addition, one end of the joint elbow 1 is provided with a manhole door 15 which is convenient for welding the guide plate 2 on the inner wall of the joint elbow 1, and a welder can enter the joint elbow 1 through the manhole door 15 to perform welding operation, so that the guide plate 2 is more convenient to install.

The first embodiment is as follows:

as shown in fig. 1 to 3, the elbow joint 1 is a spiral duct 11, the spiral duct 11 is provided with a plurality of annular ribs 111 along the length direction thereof, the guide plate 2 is formed by welding a plurality of sections of connecting steel plates 21, and two sides of the welding position of the plurality of sections of connecting steel plates 21 are provided with clamping grooves 211 which are in clamping fit with the annular ribs 111 on the inner wall of the spiral duct 11. The mounting method of the structure comprises the following steps: after one section of connecting steel plate 21 is clamped on the annular convex rib 111 at the position 1/4-1/2 of the diameter of the port of the spiral air duct 11 through the clamping groove 211, the other section of connecting steel plate 21 is clamped with the annular convex rib 111 and is in butt joint with the connecting steel plate 21 positioned previously, then the two sections of connecting steel plates 21 are in butt joint and then are connected in a welding mode, the rear connecting steel plate 21 is welded in the same mode, and finally the two sides of the sections of connecting steel plates 21 are connected with the inner wall of the spiral air duct 11 in a welding mode. The other installation method is as follows: sequentially welding and connecting multiple sections of connecting steel plates 21 with corresponding shapes to form a guide plate 2 with the same curvature radius as the joint elbow 1, extending the air guide plate 2 inwards from 1/4-1/2 of the diameter of the port of the spiral duct 11, clamping grooves 211 on two sides of the air guide plate 2 to be clamped on corresponding annular convex ribs 111, enabling two ends of the air guide plate 2 to be flush with two ends of the joint elbow 1, and finally welding two sides of the air guide plate 2 to the inner wall of the spiral duct 11. The structure of the device with the structure is more stable after the guide plate 2 is installed, the connection strength is higher, and the service life of the whole structure is prolonged.

Example two:

as shown in fig. 4, the elbow joint 1 is configured as a smooth elbow 12, the baffle 2 is configured as an integrated arc-shaped steel plate 22, the arc-shaped steel plate 22 extends inwards from 1/4-1/2 of the diameter of the port of the smooth elbow 12 until the two ends of the arc-shaped steel plate 22 are flush with the two ends of the elbow joint 1, and then the two sides of the arc-shaped steel plate 22 are welded on the inner wall of the smooth elbow 12. The device of this kind of structure makes the installation of guide plate 2 simpler, and slick and sly return bend 12 and arc steel sheet 22's structure has further reduced the impact and the pressure of high temperature dusty flue gas to joint return bend 1 inside wall, has reduced the speed when high temperature dusty flue gas meets joint return bend 1 inside wall, makes speed more stable, and the water conservancy diversion effect is better.

The foregoing is merely illustrative of some of the principles of the present invention and the description is not intended to limit the invention to the specific constructions and applications shown, so that all modifications and equivalents that may be utilized are within the scope of the invention.

Claims

1. The utility model provides a high temperature dusty flue gas guiding device, its characterized in that, guide plate (2) including joint return bend (1) and inside setting thereof, guide plate (2) along 1/4 ~ 1/2 departments of joint return bend (1) port diameter to the inside of joint return bend (1) extends, the radius of curvature of guide plate (2) with the radius of curvature of joint return bend (1) equals, the both sides of guide plate (2) with the inner wall welding of joint return bend (1) links to each other.

2. The high-temperature dust-containing flue gas flow guiding device according to claim 1, characterized in that: the guide plate (2) is a high-temperature wear-resistant steel plate, and the thickness of the guide plate (2) is larger than that of the joint elbow (1) by 4-6 mm.

3. The high-temperature dust-containing flue gas flow guiding device according to claim 2, characterized in that: joint return bend (1) sets up to spiral duct (11), spiral duct (11) are provided with a plurality of annular protruding muscle (111) along its length direction, guide plate (2) are formed by multistage connecting steel sheet (21) welding, the both sides of multistage connecting steel sheet (21) welding department be provided with annular protruding muscle (111) joint complex draw-in groove (211) of spiral duct (11) inner wall.

4. The high-temperature dust-containing flue gas flow guiding device according to claim 2, characterized in that: the joint elbow (1) is set to be a smooth elbow (12), and the guide plate (2) is set to be an integrated arc-shaped steel plate (22).

5. The high-temperature dust-containing flue gas flow guiding device according to any one of claims 1 to 4, characterized in that: the both ends of joint return bend (1) are provided with sealing connection section (13), be provided with retaining ring (14) on sealing connection section (13), the sealing washer has been cup jointed in the outside location of retaining ring (14), the both ends of guide plate (2) with the both ends parallel and level of joint return bend (1).

6. The high-temperature dusty flue gas guiding device of claim 5, wherein: one end of the joint elbow (1) is provided with a manhole door (15) which is convenient for welding the guide plate (2) on the inner wall of the joint elbow (1).