CN211400828U

CN211400828U - High-temperature flue gas energy-saving device for roasting furnace

Info

Publication number: CN211400828U
Application number: CN201922402482.4U
Authority: CN
Inventors: 李冬; 潘志健; 王开强
Original assignee: Shandong Jinzeer Cooling And Heating Equipment Co ltd
Current assignee: Shandong Jinzeer Cooling And Heating Equipment Co ltd
Priority date: 2019-12-27
Filing date: 2019-12-27
Publication date: 2020-09-01
Anticipated expiration: 2029-12-27

Abstract

The utility model relates to a bake burning furnace high temperature flue gas economizer over a slow fire, including baking over a slow fire, its characterized in that: the steam generator comprises two roasting furnaces, each roasting furnace is provided with a flue, the flues and a steam system are integrated together, each steam system comprises a steam generator, each steam generator is connected with a gas collecting pipe and a water collecting pipe, each gas collecting pipe is connected with a steam drum ascending pipe, each steam drum ascending pipe is connected with a steam drum, each steam drum is provided with a steam drum descending pipe, each steam drum descending pipe is connected with a water collecting pipe, each water collecting pipe is connected with a water collecting tank, each water collecting tank is connected with the corresponding steam generator, each steam generator is connected with each gas collecting pipe and each water collecting pipe through a quick connector, and each flue is connected with a flue outlet.

Description

High-temperature flue gas energy-saving device for roasting furnace

Technical Field

The utility model belongs to the technical field of flue gas economizer technique and specifically relates to a bake burning furnace high temperature flue gas economizer over a slow fire.

Background

In the production process of the prebaked anode, the baking is an important process, which has an important effect on the quality of the anode finished product and influences the mechanical strength and the volume stability of the prebaked anode product. The energy consumption of the roasting process accounts for about 60 percent of the total energy consumption of the anode production. Therefore, reducing the energy consumption of roasting is a key technology for reducing the energy consumption and the cost of anode production

During the roasting process, the heat loss mainly comprises three aspects: the heat loss caused by heat dissipation occurs on the surface (especially the upper part) of the furnace body; the flue gas is discharged outwards after preheating the prebaked anode in the low-temperature stage, and at the moment, if the waste heat is not recycled, part of heat is taken away, and the heat loss of the flue gas is a large heat consumption item of the anode baking furnace; the baked prebaked anode with higher temperature and the filler are discharged from the furnace and can take away certain heat, the carbon filler is a material which is necessary to be applied to an anode baked product in the baking process, and has various functions of ensuring the baking quality of the anode, preventing the product from being oxidized and preserving the heat of a material box, but the heat consumption of the filler in the whole heating process is considerable.

Through the analysis, the key point of reducing the energy consumption of the ton product by baking the prebaked anode is as follows: the volatile matters in the raw anode block are fully combusted in the flame path, and the heat income is increased; the volume rate of charging is improved; the heat dissipation loss of the furnace body is reduced as much as possible, the heat dissipation of the furnace body is a small part of the heat consumption of the anode roasting furnace, but the energy-saving potential of the small part is also considerable; the temperature of the exhaust gas emission and the temperature of the outlet of the prebaked anode are reduced as much as possible.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: aiming at the defects of the prior art, the invention aims to provide a high-temperature flue gas energy-saving device for a roasting furnace to realize the problems,

the utility model provides a technical scheme that its technical problem adopted is:

the high-temperature flue gas energy-saving device comprises two roasting furnaces, each roasting furnace is provided with a flue, the flues and a steam system are integrated together, the steam system comprises a steam generator, the steam generator is connected with a gas collecting pipe and a water collecting pipe, the gas collecting pipe is connected with a steam drum ascending pipe, the steam drum ascending pipe is connected with a steam drum, the steam drum is provided with a steam drum descending pipe, the steam drum descending pipe is connected with the water collecting pipe, the water collecting pipe is connected with a water collecting tank, the water collecting tank is connected with the steam generator, the steam generator is connected with the gas collecting pipe and the water collecting pipe through quick connectors, and the flues are connected with flue outlets.

In this embodiment, the flue exit is provided with the frequency conversion fan, the frequency conversion fan sets up on the fan mount pad, the fan mount pad is fixed in the flue outside.

In this embodiment, temperature, pressure, flow instrument are all installed to steam system's flue gas side and steam side, and automatic water supply monitors flue gas temperature curve and water level line, and water level warning and interlocking, complete set of system adopt PLC automatic control, and the touch-sensitive screen shows.

In this embodiment, the steam generator is arranged on the center line between the two roasting furnaces.

The utility model has the advantages that:

the utility model discloses make the flue again, every is baked burning furnace respectively and is makeed one, and steam generator is in the same place with the flue integration, and two are baked burning furnace and are set up a sharing steam generator and set up on two central lines that bake burning furnace intermediate position over a slow fire respectively, and required demineralized water is introduced by the outside. The steam-water mixture enters the gas collecting pipe through the ascending pipe and then enters the steam pocket through the ascending pipe, and the water required by the steam generator enters the water collecting pipe through the steam pocket descending pipe and then enters the water collecting tank of the steam generator. The connection between the steam generator and the gas collecting pipe and the water collecting pipe adopts quick connectors. And discharging the cooled flue gas by a variable frequency fan.

Drawings

The present invention will be further explained with reference to the drawings and examples.

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

fig. 2 is a side view of the present invention;

in the figure, 1, a roasting furnace, 2, a fan mounting seat, 3, a variable frequency fan, 4, a flue outlet, 5, a flue, 6, a gas collecting pipe, 7, a quick joint, 8, a steam generator, 81, a water collecting tank, 9, a water collecting pipe, 10, a support frame, 11, a steam pocket ascending pipe, 12, a cylinder, 13 and a steam pocket descending pipe are arranged.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

Wherein like reference numerals refer to like parts throughout.

In addition, if a detailed description of the known art is not necessary to show the features of the present invention, it is omitted. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.

It should also be noted that, unless expressly stated or limited otherwise, the terms "disposed" and "connected" are to be construed broadly, e.g., as meaning 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. To those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific instances, and furthermore, the terms "first", "second", and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

As shown in fig. 1-2, a high-temperature flue gas energy-saving device for a roasting furnace includes two roasting furnaces 1, two roasting furnaces 1 are provided, each roasting furnace 1 is provided with a flue 5, the flues 5 and a steam system are integrated together, the steam system includes a steam generator 8, the steam generator 8 is connected with a gas collecting pipe 6 and a water collecting pipe 9, the gas collecting pipe 6 is connected with a steam drum ascending pipe 11, the steam drum ascending pipe 11 is connected with a steam drum 12, the steam drum 2 is provided with a steam drum descending pipe 13, the steam drum descending pipe 13 is connected with the water collecting pipe 9, the water collecting pipe 9 is connected with a water collecting tank 81, the water collecting tank 81 is connected with the steam generator 8, the steam generator 8 is connected with the gas collecting pipe 6 and the water collecting pipe 9 through a quick connector 7, and the flue 5 is connected with a flue outlet.

In this embodiment, flue outlet 4 department is provided with frequency conversion fan 3, frequency conversion fan 3 sets up on fan mount pad 2, fan mount pad 2 is fixed in the flue 5 outside. The cooled flue gas is discharged by the variable frequency fan 3.

The utility model discloses make flue 5 again, every is baked burning furnace respectively and is made one, and steam generator 8 is in the same place with flue 5 is integrated, and two are baked burning furnace 1 and are set up a shared steam generator 8 and set up on two central lines that bake burning furnace 1 intermediate position over a slow fire respectively, and required demineralized water is introduced by the outside. The steam-water mixture enters the gas collecting pipe through the ascending pipe and then enters the steam drum 12 through the ascending pipe 11, and the water required by the steam generator 8 enters the water collecting pipe 6 through the steam drum descending pipe 13 and then enters the water collecting tank 81 of the steam generator 8. The connection between the steam generator 81 and the gas collecting pipe 6 and the water collecting pipe 9 adopts a quick connector 7. The cooled flue gas is discharged by the variable frequency fan 3.

In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

1. The utility model provides a bake burning furnace high temperature flue gas economizer over a slow fire, includes and bakes burning furnace, its characterized in that: the steam generator comprises two roasting furnaces, each roasting furnace is provided with a flue, the flues and a steam system are integrated together, each steam system comprises a steam generator, each steam generator is connected with a gas collecting pipe and a water collecting pipe, each gas collecting pipe is connected with a steam drum ascending pipe, each steam drum ascending pipe is connected with a steam drum, each steam drum is provided with a steam drum descending pipe, each steam drum descending pipe is connected with a water collecting pipe, each water collecting pipe is connected with a water collecting tank, each water collecting tank is connected with the corresponding steam generator, each steam generator is connected with each gas collecting pipe and each water collecting pipe through a quick connector, and each flue is connected with a flue outlet.

2. The high-temperature flue gas energy-saving device for the roasting furnace according to claim 1, wherein the high-temperature flue gas energy-saving device comprises: the variable frequency fan is arranged at the outlet of the flue and is arranged on the fan mounting seat, and the fan mounting seat is fixed on the outer side of the flue.

3. The high-temperature flue gas energy-saving device for the roasting furnace according to claim 1, wherein the high-temperature flue gas energy-saving device comprises: temperature, pressure and flow instruments are installed on the smoke side and the steam side of the steam system, water is automatically supplemented, a smoke temperature curve and a water level line are monitored, water level alarming and interlocking are achieved, the whole system is automatically controlled by a PLC, and touch screen display is achieved.

4. The high-temperature flue gas energy-saving device for the roasting furnace according to claim 1, wherein the high-temperature flue gas energy-saving device comprises: the steam generator is arranged on a center line between the two roasting furnaces.