CN115289862A

CN115289862A - Return furnace capable of recycling smoke dust and smoke waste heat

Info

Publication number: CN115289862A
Application number: CN202210952708.1A
Authority: CN
Inventors: 赵振兴; 赵延斌; 敬长训
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-08-03
Filing date: 2022-08-03
Publication date: 2022-11-04

Abstract

A smoke and dust removing and flue gas waste heat recoverable back burning furnace comprises a set of standard back burning furnace body, a flue gas waste heat recovery water tank and a smoke and dust remover, and is characterized in that the recovery water tank is a cuboid with the same size as the back side area of the furnace body, the dust remover is composed of a front wide surface, a back wide surface and a bottom surface at the lowest part of the water tank, and the dust remover can be extracted from the side surface to conveniently clean dust. The back-burning furnace has the advantages that: the first fuel is burned back to achieve full combustion; the heat in the second high-temperature flue gas is fully absorbed and utilized; the smoke dust in the third smoke is also well removed, and the discharged smoke achieves the smoke-free and dust-free effects.

Description

Return furnace capable of recycling smoke dust and smoke waste heat

Technical Field

The invention relates to a stove, in particular to a back-burning stove which can use various fuels such as coal, charcoal, straw, biomass particles and the like.

Background

The common water heating furnace has the problems of low heat efficiency, overhigh temperature of a smoke outlet and the like, and a part of heat is emitted to the air through a flue to cause the waste of fuel.

Disclosure of Invention

In order to solve the defects in the technology, the invention provides a novel efficient reburning furnace which is beautiful, elegant, light, small, firm, durable, environment-friendly and energy-saving.

A standard back-burning furnace body is shown in figure 1, a plurality of pot rings with different sizes are arranged in the middle of the uppermost edge of the furnace body, different pot rings are matched with pots with different sizes for use, a flame gathering area is arranged below the pot rings, two layers of upper partition plate iron plates of a hearth are arranged below the pot rings, a cylindrical back-burning liner is arranged in the middle of the two layers of partition plates, the back-burning liner is also provided with a middle interlayer, the interlayer of the middle interlayer is communicated with the interlayer of the upper partition plate, a hearth space is arranged below the back-burning liner, a charging hole is directly communicated to the hearth space on the front surface of the furnace body, an inner space surrounded by four-surface double-layer iron plates is arranged around the hearth space, the four-surface double-layer iron plates are used as a part of the furnace body, the middle interlayer of the furnace body becomes hot air for back burning the back-burning liner, the air in the interlayer is heated to more than 180 degrees by the hearth, the middle interlayer on the upper sides of the four-side double-layer furnace body is communicated with the middle interlayer of the upper partition plate, the middle interlayer of the upper partition plate is communicated with the middle interlayer of the back-burning liner, so that the hot air finally enters the back-burning liner and is sprayed out from the back-burning liner to participate in secondary combustion of flue gas, the air in the furnace body interlayer enters from the air inlets below the feeding hole and above the ash box, it can be seen that the waste gas after combustion in the standard back-burning furnace still has higher temperature and is directly discharged from the chimney, the heat loss is very large, and in order to improve the purpose of heat recovery, the invention provides the following technical scheme: a smoke and dust removing and flue gas waste heat recoverable back burning furnace comprises a set of standard back burning furnace body, a flue gas waste heat recovery water tank and a smoke and dust remover, and is characterized in that the recovery water tank is a cuboid with the same size as the back side area of the furnace body, the height H of the water tank is the height of the furnace body, the width L of the water tank is the width of the furnace body, the thickness N of the water tank is the width of the dust remover, the length of the dust remover is the width of the water tank, the height and the width of the water tank are determined by the height and the width of the furnace body, the thickness of the water tank is determined by the optimal width of the dust remover, the water tank is welded with the back four sides of the furnace body at intervals of 1 cm-2 cm to form a flue with the length H, the width of the L and the thickness of 1 cm-2 cm, the upper part of the flue is communicated with a flame gathering area, the lower part of the flue is communicated with a concave-convex runner of the dust remover, an iron plate with the height of H and the width of L is used on the outer surface of the water tank, two holes are drilled at the upper position and the lower position of the iron plate, a cold and hot water pipe penetrates out and is welded as shown in figure 2, the iron plate and the water tank are welded together in a sealing way at the interval of 1 cm-2 cm to form another flue, the upper part of the flue is connected with a chimney, the bottommost part of the water tank consists of a front wide surface, a rear wide surface and a bottom surface to form an upper inverted U-shaped part of the dust remover, a mountain-shaped part welded by the iron plate is arranged below the inverted U-shaped part and corresponds to the mountain-shaped part, and the concave-convex runner is arranged between the inverted U-shaped part and the mountain-shaped part, wherein the mountain-shaped part can be extracted from the side surface to facilitate dust cleaning.

As shown in figure 3, a return-burning furnace which can recover the residual heat of smoke and dust and fume has a multi-circle boiler ring 1 and a chimney 12 on the upper surface, a flame gathering area and a cylindrical return-burning liner 2 are arranged below the boiler ring, the return-burning liner is arranged in the middle of two layers of clapboards, the lower part of the return-burning liner extends into a hearth, the high-temperature fuel in the hearth is carbonized and partially burnt in the return-burning liner, air enters a hot air channel 6 of an interlayer on the four sides of the hearth from an air inlet 4, the hot air is heated to more than 180 degrees in the channel, the hot air upwards enters the return-burning liner and fully mixes with the smoke and burns the flame to reach more than 800 degrees, then the high-temperature smoke and fume passes through the whole front surface of a heat recovery water tank 10 along a downward flue 7 to heat the water tank for the first time, and then passes through a concave-convex flow channel of a dust remover 8, high-temperature flue gas is purified and is heated for the second time to the water tank when passing through the concave-convex flow channel of the dust remover, then the high-temperature flue gas upwards enters the upward flue to heat the whole rear panel behind the water tank for the third time, then the flue gas is discharged from the chimney, the space volume of the downward flue at the front of the water tank (the height of the water tank, the width of the water tank, and the distance between the water tank and the furnace body) is kept consistent, the internal space volume of the dust remover (the height of the water tank, the width of the water tank, and the distance between the water tank, the width of the water tank, and the back iron plate 13) is kept consistent, so that the flue gas can not pass through intestines smoothly when flowing through the three, the high-temperature flue gas is blocked by the water tanks for the third time, and the temperature of the flue gas discharged from the chimney cannot be very high.

The beneficial part of this patent is: the first fuel is burnt back to achieve full combustion; the heat in the second high-temperature flue gas is fully absorbed and utilized; the smoke dust in the third smoke is also well removed, and the discharged smoke reaches the smoke-free and dust-free state.

Drawings

FIG. 1 is a schematic view of a standard burn-back furnace

FIG. 2 is a front view of a heat recovery water tank

FIG. 3 is a structural diagram of a back-burning furnace capable of recovering the residual heat of smoke and dust removing smoke

FIG. 4 is a diagram of the effect of a back-burning furnace with recoverable residual heat of smoke and fume

In the figure, a plurality of circles of pot rings 2 are arranged on a burning-back liner 3, a fuel adding port 4 is arranged on an ash box 6, a hot air channel 7 is arranged on a flue 8, a dust remover 9, a cold water interface 10, a heat recovery water tank 11, a hot water interface 12, a flue tube 13, a back iron plate 14, an exhaust valve 16, a hot water faucet 17, a hot water faucet 18 and a tap water pipe 19.

Detailed Description

The specific installation and use method of the re-burning furnace capable of recycling the residual heat of the smoke dust and the flue gas is shown in figure 4, the furnace body is placed at a proper position, a tee joint is connected to a hot water pipe of the furnace body and then is upwards connected with an exhaust valve 15, the other end of the tee joint is connected with a tee joint and then is downwards connected with a hot water faucet 16, the other end of the tee joint is connected to a heat-insulating water tank 18, the upper part of the heat-insulating water tank is connected with a hot water faucet 17, a tee joint is connected to a cold water pipe of the furnace body, one end of the tee joint is connected with a tap water pipe 19, the other end of the tee joint is connected to the lower part of the heat-insulating water tank, and a chimney 12 is continuously connected to the outside.

When fuel is added into the furnace body for ignition, the pot ring can be removed and put on a pot or a kettle, water can be boiled or cooked, hot water can be generated in the furnace body, the hot water can be taken out at any time on a hot water faucet 16, the hot water in the furnace body can be input into a heat-preservation water tank for heat preservation and storage, and therefore more hot water can be used, and the hot water can also be used when the furnace body is stopped.

Claims

1. A kind of smoke and dust removing and residual heat recoverable back-burning stove, including a set of standard back-burning stove body, a residual heat recovery water tank of smoke and dust remover, characterized by that the recovery water tank is a cuboid with the same size of area behind the stove body, the height H of the water tank is the height of the stove body, the width L of the water tank is the width of the stove body, the thickness N of the water tank is the width of the dust remover, and the length of the dust remover is the width of the water tank, the height and width of the water tank are determined by the height and width of the stove body, the thickness of the water tank is determined by the best width of the dust remover, the water tank is welded with the back four sides of the stove body at the interval of 1 cm-2 cm to form a U-shaped flue with the length of H and the thickness of 1 cm-2 cm, the upper part of the flue is connected with the flame gathering area, the lower part of the flue is connected with the concave-convex flow channel of the dust remover, the outer surface of the water tank is welded with a U-shaped bottom surface of the H and the middle channel at the bottom surface of the iron plate, the middle channel is welded with the middle mountain-shaped part of the dust remover, the middle channel, the middle mountain-shaped part is welded with the middle part of the dust removing part, the middle part of the middle mountain-shaped dust removing part.