CN212205696U

CN212205696U - Low-temperature flue gas waste heat recovery and purification system of roasting furnace

Info

Publication number: CN212205696U
Application number: CN202020645816.0U
Authority: CN
Inventors: 孟令圣; 杨志锦
Original assignee: Suzhou Shunhui Non Ferrous Metal Products Co ltd
Current assignee: Suzhou Shunhui Non Ferrous Metal Products Co ltd
Priority date: 2020-04-24
Filing date: 2020-04-24
Publication date: 2020-12-22
Anticipated expiration: 2030-04-24

Abstract

The utility model relates to the technical field of recovery devices, and discloses a low-temperature flue gas waste heat recovery and purification system of a roasting furnace, which comprises a shell, wherein the front surface of the shell is provided with an observation window, the upper parts of the two sides of the shell are provided with a heat medium inlet and a heat medium outlet, the side surface of the shell is provided with an operation panel, the top of the shell is communicated with a pipeline, the side surface of the pipeline is clamped and connected with a spiral pipe, atomized water drops are sprayed, the contact area between the atomized water drops and flue gas is increased, the flue gas can be cooled, the water vapor in the flue gas can be condensed to release heat, the low-humidity flue gas after heat exchange is subjected to water mist removal by a demister, clean dry flue gas is discharged from a smoke outlet, the heated water vapor can be liquefied into water drops to a drainage groove and is discharged through a drain pipe for use, the sensible heat recovery aiming at the high-temperature flue, the problem that the latent heat of condensation is not recovered is contained in the low-temperature flue gas.

Description

Low-temperature flue gas waste heat recovery and purification system of roasting furnace

Technical Field

The utility model relates to a recovery unit technical field specifically is a low temperature flue gas waste heat recovery clean system of burning furnace over a slow fire.

Background

The boiler is a container which is applied to various industries such as petroleum, chemical engineering, metallurgy, machinery and the like. The heating device comprises a heating pipe and a heating plate, wherein the heating plate is positioned at the center of a heating furnace, and the heating pipe is distributed on the inner wall of the heating furnace, so that objects on the heating plate can be processed in all aspects.

However, the existing roasting furnace mainly recovers the sensible heat of the high-temperature flue gas, but the sensible heat recovery only accounts for the part of the total heat recovery, the latent heat of condensation is contained in the low-temperature flue gas and cannot be recovered, and after the waste heat is recovered, the gas needs to be introduced into a purification device for purification, so that the production cost is increased.

SUMMERY OF THE UTILITY MODEL

Problems to be solved

An object of the utility model is to provide a low temperature flue gas waste heat recovery clean system of burning furnace over a slow fire, can be to the sensible heat recovery back, also can absorb the condensation latent heat in the low temperature flue gas, and can purify in an organic whole to the flue gas, manufacturing cost has been reduced to propose the sensible heat recovery to the high temperature flue gas in solving above-mentioned background art, however, the recovery of sensible heat only accounts for the part of full heat recovery, it fails to retrieve to contain the condensation latent heat in the low temperature flue gas, and after the waste heat recovery, need let in gas and purify in the purifier, manufacturing cost's problem has been increased.

(II) technical scheme

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: a low-temperature flue gas waste heat recovery and purification system of a roasting furnace comprises a shell, wherein an observation window is arranged on the front side of the shell, a heat medium inlet and a heat medium outlet are arranged on the upper parts of two sides of the shell, an operation panel is arranged on the side surface of the shell, a pipeline is communicated with the top of the shell, a spiral pipe is clamped and connected with the side surface of the pipeline, a flue gas inlet is fixedly connected with the side surface of the spiral pipe, sealing covers are fixedly connected with the lower parts of two sides of the shell, a smoke exhaust port is communicated with the side surface of each sealing cover, a base is fixedly connected with the bottom of the shell, a driving motor is arranged at the top of the base, a heat exchanger is arranged in the shell, flow channels are arranged on two sides of the heat exchanger, a valve is fixedly connected with the bottom of the, the side intercommunication of shower head has the water injection pipe, the internally mounted of condensation chamber has the defroster, the bottom intercommunication of condensation chamber has the drainage groove, the side intercommunication in drainage groove has the drain pipe.

Preferably, the number of the spray headers is two, and the two spray headers are arranged in axial symmetry with the central line of the condensation cavity.

Preferably, the valve is made of a heat-resistant and corrosion-resistant material, is located at the joint of the heat exchanger and the condensation cavity, and is fixedly connected with the heat exchanger.

Preferably, the drainage groove is sixty degrees slope, the outer wall of drainage groove is smooth, drainage groove and condensation chamber intercommunication.

Preferably, the observation window is rectangular, the observation window is arranged in parallel with the heat exchanger, and the observation window is embedded in the shell.

Preferably, spiral grooves are uniformly formed in the spiral pipe, the spiral pipe is of a detachable structure, and the spiral pipe is connected with the pipeline in a clamping mode.

(III) advantageous effects

Compared with the prior art, the beneficial effects of the utility model are that:

(1) the utility model discloses a heat exchanger and condensation chamber that set up, high temperature flue gas enters heat exchanger department from the pipeline, and release heat to the heat exchanger, simultaneously, the staff will need the medium of heating, let in from the heat medium import, from supreme down, and the letting in of high temperature flue gas is from last to down, the heat medium can take place the heat exchange with high temperature flue gas, thereby absorb most heat in the flue gas, and form high temperature medium and flow out from the heat medium export, the flue gas through the heat exchange can enter the condensation chamber through the valve, the shower head starts, spout the water droplet after the atomizing, the area of contact of the water droplet after the atomizing and flue gas increases, can cool down the flue gas, the vapor in the flue gas can condense and release heat, the low humidity flue gas after the heat exchange gets rid of the water smoke through the defroster, clean dry flue gas is discharged from the exhaust port, and the water vapor after the heating can liquefy into water droplet and fall to drainage groove, the exhaust pipe is used for people to use, the sensible heat recovery to the high-temperature flue gas is solved, however, the recovery of the sensible heat only accounts for the part of the total heat recovery, and the problem that the latent heat of condensation is contained in the low-temperature flue gas and cannot be recovered is solved.

(2) The utility model discloses a spiral pipe and the flue gas entry that set up, when the flue gas leads to the people, the flue gas entry is the toper, the flue gas gets into the back, can gather together, after entering into the spiral pipe, the spiral slot has evenly been seted up to the inside of spiral pipe, the distance of flue gas circulation has been increased, make dust impurity in the flue gas deposited easily, and simultaneously, the cooperation spiral is radial, the speed that the flue gas flows has also been increased, the speed that the flue gas enters into the heat exchanger and carries out the heat exchange, after finishing using, can dismantle the spiral pipe, long-time use has been avoided and the jam appears, there is dust impurity in the flue gas has been solved, can influence waste heat recovery, the problem of manufacturing cost has been increased.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a sectional view of the structure of the housing of the present invention;

fig. 3 is a schematic view of the working process of the present invention.

In the figure: 1. a housing; 2. a drive motor; 3. a base; 4. a drain pipe; 5. sealing the cover; 6. An observation window; 7. an operation panel; 8. a heating medium inlet; 9. a heating medium outlet; 10. a pipeline; 11. A spiral tube; 12. a flue gas inlet; 13. a heat exchanger; 14. a flow channel; 15. a valve; 16. a shower head; 17. a demister; 18. a condensation chamber; 19. a drainage groove; 20. a smoke outlet; 21. a water injection pipe.

The utility model provides an instrument all can obtain through market purchase and private customization:

driving a motor: MR-J2S-10A;

an operation panel: P164R;

a heat exchanger: KAORI;

a demister: ST-ME-f 75.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting 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; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-3, the present invention provides a technical solution: a low-temperature flue gas waste heat recovery and purification system of a roasting furnace comprises a shell 1, an observation window 6 is arranged on the front side of the shell 1, a heat medium inlet 8 and a heat medium outlet 9 are arranged on the upper portions of two sides of the shell 1, an operation panel 7 is arranged on the side surface of the shell 1, a pipeline 10 is communicated with the top of the shell 1, a spiral pipe 11 is clamped and connected with the side surface of the pipeline 10, a flue gas inlet 12 is fixedly connected with the side surface of the spiral pipe 11, a sealing cover 5 is fixedly connected with the lower portions of two sides of the shell 1, a smoke exhaust port 20 is communicated with the side surface of the sealing cover 5, a base 3 is fixedly connected with the bottom of the shell 1, a driving motor 2 is arranged at the top of the base 3, a heat exchanger 13 is arranged inside the shell 1, flow channels 14 are arranged on two sides of the heat exchanger 13, a valve, the side of shower head 16 communicates with water injection pipe 21, and the internally mounted of condensation chamber 18 has defroster 17, and the bottom intercommunication of condensation chamber 18 has drainage groove 19, and the side intercommunication of drainage groove 19 has drain pipe 4.

In this embodiment, specifically, the number of the spray headers 16 is two, the two spray headers 16 are arranged in axial symmetry with the central line of the condensation cavity 18, and after the flue gas enters the condensation cavity 18, the spray headers 16 can uniformly spray the flue gas, so that the flue gas is cooled.

In this embodiment, it is specific, valve 15 adopts heat-resisting corrosion-resistant material to make, and valve 15 is located heat exchanger 13 and condensation chamber 18 handing-over department, and valve 15 and heat exchanger 13 fixed connection can close before heat exchanger 13 fully carries out the heat exchange, avoid the flue gas to enter into condensation chamber 18 in, and adopt heat-resisting corrosion-resistant material, can effectually adapt to two kinds of temperatures, have improved valve 15's life.

In this embodiment, it is concrete, and drainage groove 19 is sixty degrees slopes, and the outer wall of drainage groove 19 is smooth, and drainage groove 19 and condensation chamber 18 intercommunication fall into drainage groove 19 department at the vapor liquefaction, and glossy outer wall can guide rivers fast, avoids the heat to scatter and disappear.

In this embodiment, it is concrete, observation window 6 is "rectangle", and observation window 6 and heat exchanger 13 parallel arrangement, observation window 6 imbed in shell 1, and when the device worked, the staff can observe inside behavior through observation window 6, is convenient for in time adjust the device.

In this embodiment, specifically, spiral groove has evenly been seted up to spiral pipe 11's inside, and spiral pipe 11 is detachable structure, and spiral pipe 11 is connected with pipeline 10 block, through the multistage spiral groove in spiral pipe 11, can keep dust impurity for tentatively purify the flue gas.

The working principle is as follows: after the utility model is installed, firstly, the installation, fixation and safety protection of the utility model are checked, after the operation, the operator starts the device, the smoke enters the spiral pipe 11 through the smoke inlet 12, the spiral grooves are evenly arranged inside the spiral pipe 11, the spiral diameter is matched, the flow speed of the smoke is increased, the operator operates the operation panel 7, so that the driving motor 2 starts to start, the high-temperature smoke enters the heat exchanger 13 from the pipeline 10 and releases heat to the heat exchanger 13, meanwhile, the operator introduces the medium to be heated from the heat medium inlet 8 from bottom to top, the introduction of the high-temperature smoke is from top to bottom, the heat medium and the high-temperature smoke generate heat exchange, most of heat in the smoke is absorbed, the high-temperature medium flows out from the heat medium outlet 9, the smoke after heat exchange enters the condensation cavity 18 through the valve 15, the shower head 16 begins to start, and the water droplet after the blowout atomizing, the area of contact increase of water droplet after the atomizing and flue gas can cool down the flue gas, and vapor in the flue gas can condense exothermic, and the low wet flue gas after the heat transfer gets rid of the water smoke through defroster 17, and the staff opens closing cap 5, and dry flue gas discharges from exhaust port 20, and the vapor after the heating can liquefy into water and drip 19 departments of drainage groove, discharges through drain pipe 4.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Claims

1. The utility model provides a low temperature flue gas waste heat recovery clean system of burning furnace over a slow fire, includes shell (1), its characterized in that: the utility model discloses a heat exchanger, including shell (1), observation window (6) have been seted up in the front of shell (1), heat medium import (8) and heat medium export (9) have been seted up on the upper portion of shell (1) both sides, the side-mounting of shell (1) has operating panel (7), the top intercommunication of shell (1) has pipeline (10), the side block of pipeline (10) is connected with spiral pipe (11), the side fixedly connected with flue gas import (12) of spiral pipe (11), the lower part fixedly connected with closing cap (5) of shell (1) both sides, the side intercommunication of closing cap (5) has exhaust port (20), the bottom fixedly connected with base (3) of shell (1), driving motor (2) are installed at the top of base (3), the internally mounted of shell (1) has heat exchanger (13), the both sides of heat exchanger (13) all are provided with runner (14), the bottom fixedly connected with valve (15) of heat exchanger (13), the bottom intercommunication of valve (15) has condensation chamber (18), the equal fixedly connected with shower head (16) in both sides of condensation chamber (18), the side intercommunication of shower head (16) has water injection pipe (21), the internally mounted of condensation chamber (18) has defroster (17), the bottom intercommunication of condensation chamber (18) has drainage groove (19), the side intercommunication of drainage groove (19) has drain pipe (4).

2. The system for recovering and purifying the low-temperature flue gas waste heat of the roasting furnace according to claim 1, wherein the system comprises: the number of the spray headers (16) is two, and the two spray headers (16) are arranged in axial symmetry with the central line of the condensation cavity (18).

3. The system for recovering and purifying the low-temperature flue gas waste heat of the roasting furnace according to claim 1, wherein the system comprises: the valve (15) is made of heat-resistant and corrosion-resistant materials, the valve (15) is located at the joint of the heat exchanger (13) and the condensation cavity (18), and the valve (15) is fixedly connected with the heat exchanger (13).

4. The system for recovering and purifying the low-temperature flue gas waste heat of the roasting furnace according to claim 1, wherein the system comprises: drainage groove (19) are the slope of sixty degrees, the outer wall of drainage groove (19) is smooth, drainage groove (19) and condensation chamber (18) intercommunication.

5. The system for recovering and purifying the low-temperature flue gas waste heat of the roasting furnace according to claim 1, wherein the system comprises: the observation window (6) is rectangular, the observation window (6) and the heat exchanger (13) are arranged in parallel, and the observation window (6) is embedded in the shell (1).

6. The system for recovering and purifying the low-temperature flue gas waste heat of the roasting furnace according to claim 1, wherein the system comprises: spiral grooves are uniformly formed in the spiral pipe (11), the spiral pipe (11) is of a detachable structure, and the spiral pipe (11) is connected with the pipeline (10) in a clamping mode.