CN213363409U

CN213363409U - Preheating furnace heated by waste heat and waste gas

Info

Publication number: CN213363409U
Application number: CN202021910729.XU
Authority: CN
Inventors: 邱峰; 邱朗轩; 杨树伟
Original assignee: Tianjin Saiyang Industrial Furnace Co ltd
Current assignee: Tianjin Saiyang Industrial Furnace Co ltd
Priority date: 2020-09-04
Filing date: 2020-09-04
Publication date: 2021-06-04
Anticipated expiration: 2030-09-04

Abstract

The utility model discloses an utilize waste heat exhaust gas heating's preheater, comprising a base plate, the bottom plate top is provided with the preheater, the front of preheater is provided with the furnace gate, the side of preheater is provided with first connecting pipe, first connecting pipe bottom is provided with bellows, the inside filter that is provided with of bellows, the filter includes the oil absorption layer on upper strata and the filter layer of lower floor, the filter openly is connected with takes out the board, the bellows side is provided with the second connecting pipe, the preheater opposite side is provided with the dust absorption board, dust absorption board side is connected with the water tank through the third connecting pipe, the water tank top is provided with the blast pipe, the blast pipe top is provided with the purifying box, inside layer and the activated carbon layer that absorb water that is provided with of purifying box. The utility model discloses structural design scientific and reasonable can make full use of heat, and the practicality is strong.

Description

Preheating furnace heated by waste heat and waste gas

Technical Field

The utility model relates to a preheater equipment technical field specifically is an utilize preheating furnace of waste heat exhaust gas heating.

Background

The preheating furnace is used for exchanging heat in high-temperature flue gas of a heating furnace by passing low-quality fuel (mainly low-calorific-value fuel such as blast furnace gas, hot gas, tail gas and the like) or air through a heat exchanger, so that the temperature of the low-quality fuel or air is increased to 900 ℃ generally to 300-. Thereby improving the actual combustion temperature of the inferior fuel or the sensible heat of air, achieving the high-temperature calcination or other processes of the inferior fuel, and further replacing the high-quality fuel. The substitution of the poor fuel for the high-quality fuel is realized, thereby greatly saving the fuel cost. Meanwhile, the emission of poor fuel or tail gas is reduced, and the pollution is reduced. Is a novel process and a novel technology which are energy-saving and environment-friendly. The existing preheating furnace equipment cannot fully absorb and utilize heat, resource waste is easily caused, and the used waste gas is directly discharged into an external environment, so that the environmental pollution is easily caused. To this end, we propose a preheating furnace heated by waste heat exhaust gas.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an utilize preheater of waste heat exhaust gas heating to solve the problem of proposition among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an utilize waste heat exhaust gas heating's preheater, includes the bottom plate, the bottom plate top is provided with the preheater, the front of preheater is provided with the furnace gate, the side of preheater is provided with first connecting pipe, first connecting pipe bottom is provided with bellows, the inside filter that is provided with of bellows, the filter includes the oil absorption layer on upper strata and the filter layer of lower floor, the filter openly is connected with takes out the board, the bellows side is provided with the second connecting pipe, the preheater opposite side is provided with the dust absorption board, the dust absorption board side is connected with the water tank through the third connecting pipe, the water tank top is provided with the blast pipe, the blast pipe top is provided with the purifying box, inside water absorption layer and the activated carbon layer of being provided.

Preferably, a first valve is arranged in the middle of the first connecting pipe.

Preferably, the pulling plate is clamped with the side wall of the bellows through a connecting plate.

Preferably, a second valve is arranged on the side surface of the second connecting pipe.

Preferably, a check valve is arranged in the middle of the third connecting pipe.

Preferably, the side surface of the purification box is fixedly connected with the preheating furnace.

Preferably, a flue gas channel is arranged at the top of the purification box.

Compared with the prior art, the beneficial effects of the utility model are that: the preheating furnace utilizing waste heat and waste gas for heating is simple and reasonable in structural design and high in practicability, waste gas generated by processing enters the air box through the oil absorption layer and the filter layer, oil stains in the waste gas are filtered out of the air box, the oil stains are prevented from causing fouling in the pipeline and equipment, the preheating furnace is inconvenient to clean, waste gas containing waste heat enters the preheating furnace to preheat a workpiece, energy can be effectively utilized, energy waste is reduced, after preheating is completed, smoke containing waste heat enters the water tank through the third connecting pipe and the dust absorption plate after being purified through the third connecting pipe, water in the water tank is heated, heat is fully absorbed, hot water is convenient for people to use, and the preheating furnace can dry the smoke and remove odors to the external environment through the purification box, the water absorption layer and the activated carbon layer, so that the environment is protected, the purpose of green environmental protection.

Drawings

FIG. 1 is a front view of the structure of the present invention;

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

fig. 3 is a sectional view of the structure of the purifying box of the present invention.

In the figure: 1 bottom plate, 11 preheating furnace, 12 furnace door, 13 first connecting pipe, 14 first valve, 15 wind box, 16 filter plate, 161 oil absorption layer, 162 filter layer, 163 pumping plate, 17 second connecting pipe, 18 second valve, 2 dust absorption plate, 21 third connecting pipe, 22 check valve, 23 water tank, 24 exhaust pipe, 25 purifying box, 26 water absorption layer and 27 active carbon layer.

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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a preheating furnace heated by waste heat and waste gas comprises a bottom plate 1, wherein a preheating furnace 11 is arranged at the top of the bottom plate 1, a furnace door 12 is arranged on the front side of the preheating furnace 11, a first connecting pipe 13 is arranged on the side surface of the preheating furnace 11, a first valve 14 is arranged in the middle of the first connecting pipe 13, an air box 15 is arranged at the bottom of the first connecting pipe 13, a filter plate 16 is arranged inside the air box 15, the filter plate 16 comprises an upper oil absorption layer 161 and a lower filter layer 162, the processed waste gas enters the air box 15 through the arrangement of the oil absorption layer 161 and the filter layer 162 to be filtered to remove oil stains in the air box, so that the inner parts of pipelines and equipment are prevented from being stained and inconvenient to clean, a drawing plate 163 is connected to the front side wall of the air box 16 through a connecting plate, the drawing plate 163 is clamped with the side wall of the air box 15 through, convenient operation is swift, and the waste gas that contains the waste heat gets into preheating furnace 11 inside and preheats the work piece, can effectively utilize the energy, reduces the energy extravagant, bellows 15 side is provided with second connecting pipe 17, second connecting pipe 17 side is provided with

second valve

18, 11 opposite side of preheating furnace is provided with dust absorption plate 2, dust absorption plate 2 side is connected with water tank 23 through third connecting pipe 21, and water tank 23 is inside to have the water that is used for absorbing heat, through setting up third connecting pipe 21, check valve 22, water tank 23 and dust absorption plate 2 isotructures, preheats the back, and the flue gas that contains the waste heat gets into water tank 23 from third connecting pipe 21 through 2 purification of dust absorption plate inside, heats the water in water tank 23 inside, and the heat is fully absorbed, and hot water makes things convenient for people to

Third connecting pipe 21 middle part is provided with check valve 22, and check valve 22 can prevent that water in the water tank 23 from passing through third connecting pipe 21 adverse current, water tank 23 top is provided with blast pipe 24, blast pipe 24 top is provided with purifying box 25, purifying box 25's side and preheater 11 fixed connection, inside layer 26 and the activated carbon layer 27 of absorbing water that is provided with of purifying box 25, through setting up purifying box 25, layer 26 and the activated carbon layer 27 absorb water, can carry out the drying to the flue gas and remove the flavor and discharge to the external environment again, reached the environmental protection, green's purpose, purifying box 25 top is provided with the flue gas passageway, and the gas after the purification is discharged from the flue gas passageway.

The working principle is as follows:

this kind of utilize preheating furnace of waste heat exhaust gas heating, when using, the waste gas that contains the waste heat passes through second connecting pipe 17 and gets into bellows 15, after the oil absorption of oil absorption layer 161 and filter layer 162 is filtered, waste gas gets into preheating furnace 11 inside work piece wherein from first connecting pipe 13, after the preheating, with waste gas through third connecting pipe 21 leading-in to water tank 23 inside, water in the water tank 23 is heated, the heat is effectively absorbed by water, waste gas carries out drying and removes the flavor processing through the inside layer 26 and the activated carbon layer 27 that absorb water of purifying box 25, waste gas after the processing discharges in the external environment through the smoke and dust passageway.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A preheating furnace heated by waste heat and waste gas comprises a bottom plate (1), and is characterized in that: the top of the bottom plate (1) is provided with a preheating furnace (11), the front of the preheating furnace (11) is provided with a furnace door (12), the side of the preheating furnace (11) is provided with a first connecting pipe (13), the bottom of the first connecting pipe (13) is provided with an air box (15), a filter plate (16) is arranged inside the air box (15), the filter plate (16) comprises an upper oil absorption layer (161) and a lower filter layer (162), the front of the filter plate (16) is connected with a drawing plate (163), the side of the air box (15) is provided with a second connecting pipe (17), the other side of the preheating furnace (11) is provided with a dust absorption plate (2), the side of the dust absorption plate (2) is connected with a water tank (23) through a third connecting pipe (21), the top of the water tank (23) is provided with an exhaust pipe (24), the top, and a water absorbing layer (26) and an activated carbon layer (27) are arranged in the purification box (25).

2. The preheating furnace heated by using waste heat exhaust gas as claimed in claim 1, wherein: and a first valve (14) is arranged in the middle of the first connecting pipe (13).

3. The preheating furnace heated by using waste heat exhaust gas as claimed in claim 1, wherein: the drawing plate (163) is clamped with the side wall of the air box (15) through a connecting plate.

4. The preheating furnace heated by using waste heat exhaust gas as claimed in claim 1, wherein: and a second valve (18) is arranged on the side surface of the second connecting pipe (17).

5. The preheating furnace heated by using waste heat exhaust gas as claimed in claim 1, wherein: and a check valve (22) is arranged in the middle of the third connecting pipe (21).

6. The preheating furnace heated by using waste heat exhaust gas as claimed in claim 1, wherein: the side surface of the purifying box (25) is fixedly connected with the preheating furnace (11).

7. The preheating furnace heated by using waste heat exhaust gas as claimed in claim 1, wherein: and a flue gas channel is arranged at the top of the purification box (25).