CN212057763U

CN212057763U - Coal-fired hot-blast furnace

Info

Publication number: CN212057763U
Application number: CN201922299836.7U
Authority: CN
Inventors: 张安明
Original assignee: Anshan Shengluye Boiler Co Ltd
Current assignee: Anshan Shengluye Boiler Co Ltd
Priority date: 2019-12-19
Filing date: 2019-12-19
Publication date: 2020-12-01
Anticipated expiration: 2029-12-19

Abstract

The utility model discloses a coal-fired hot-blast furnace, including the heat preservation stove, the heat preservation stove inner surface cladding has the heat preservation, heat preservation left side fixedly connected with wall body, heat preservation furnace roof end gap is connected with the tobacco pipe, the hollow furnace chamber has been seted up in the heat preservation stove, the inside top both sides of heat preservation stove can be dismantled and be connected with baffle and have a plurality ofly, link up between half slot and half slot has been seted up to the baffle bottom, the baffle is located the top of thin filter screen, the heat preservation stove inner bottom fixedly connected with material platform, inlay in the middle part of the material platform and be connected with the frame of burning, the material platform bottom can be dismantled and be connected with the. The utility model removes dust and impurities in the flue gas through the baffle which is provided with the fine filter screen and the plurality of staggered installation, and avoids the pollution to the air caused by the direct discharge of the flue gas; the coal blocks fall into the net rack with slightly smaller meshes to continue burning after burning on the burning rack, so that the coal blocks are fully burnt, and the heat loss is avoided.

Description

Coal-fired hot-blast furnace

Technical Field

The utility model relates to a hollow heat preservation stove technical field of coal-fired hot-blast furnace specifically is a coal-fired hot-blast furnace.

Background

The coal-fired hot-blast stove is directly burnt by fuel, forms hot air through high-purification treatment, and is directly contacted with materials for heating, drying or baking. Coal-fired hot-blast stoves, which began to be widely used in china in the end of the 70 th 20 th century, have become an upgrading product for electric and traditional steam-powered heat sources in many industries.

Patent number is CN 208871845U's publication a coal-fired hot-blast furnace, arranges the channel-section steel in the outside, can reduce the channel-section steel and come from the thermal radiation of furnace body, makes the channel-section steel cooling, can also observe in real time whether the channel-section steel warp to in time restore, and judge the inside structural condition of furnace body.

When the technical scheme is realized, at least the following defects exist: 1. a large amount of flue gas with impurities is generated in the combustion process of the coal briquettes, and the flue gas rises from the furnace body and enters the air to pollute the environment; 2. the coal blocks are cracked and fall downwards into the coal slag box after the combustion process, and partial coal blocks are not completely combusted, so that the coal blocks are wasted, and the heat conversion rate is low. Therefore, we propose a coal-fired hot blast stove.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a coal hot-blast stove, which removes dust impurities in flue gas by arranging a fine filter screen and a plurality of baffle plates which are installed in a staggered way, and avoids the pollution of the flue gas to the air caused by direct discharge; the coal blocks fall into the net rack with slightly smaller meshes to continue burning after burning on the burning rack, so that the coal blocks are fully burnt, the heat loss is avoided, and the problem provided in the background technology is solved.

In order to achieve the above object, the utility model provides a following technical scheme: a coal-fired hot blast stove comprises a heat preservation stove, wherein the inner surface of the heat preservation stove is coated with a heat preservation layer, the left side of the heat preservation layer is fixedly connected with a wall body, a smoke tube is connected with a gap at the top end of the heat preservation stove, a hollow stove chamber is arranged in the heat preservation stove, two sides of the top end in the heat preservation stove are detachably connected with a plurality of baffles, the bottoms of the baffles are provided with semicircular grooves and are connected with each other in a connecting way, the baffles are positioned above a fine filter screen, the inner bottom of the heat preservation stove is fixedly connected with a material platform, the middle part of the material platform is embedded and connected with a burning frame, the bottom of the material platform is detachably connected with a net frame, the bottom of the heat preservation stove is provided with a feed inlet, the bottom end of the heat preservation stove is welded with a cinder box, the heat preservation, the bottom end of the cinder box is fixedly connected with a base.

As an optimized implementation mode of the utility model, the heat-preserving furnace top end both sides gap connection has a heat-discharging pipe, the heat-preserving furnace bottom end left side can be dismantled and is connected with the intake pipe.

As a preferred embodiment of the present invention, the intake pipe is detachably connected to a valve, and the air inlet of the intake pipe extends to the inside of the air pump.

As an optimized implementation mode of the utility model, the feed inlet is connected with the furnace door through a hinge, and the outer surface of the furnace door is bonded with a pull handle.

As a preferred embodiment of the present invention, the current input terminals of the air pump and the valve are electrically connected to an external power source through wires.

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

1. the utility model discloses a hollow holding furnace device of a coal-fired hot-blast stove, which removes dust impurities in flue gas through a baffle provided with a thin filter screen and a plurality of staggered installation, and avoids the direct discharge of the flue gas to pollute the air; flue gas that produces after the coal cinder burning carries the cinder dust and rises through thin filter screen, and the large granule dust falls back to the cavity furnace indoor not through thin filter screen back, and the flue gas lasts to rise to beat on the baffle, and the dust is beated the baffle upper velocity and is reduced, crisscross installation between the baffle, and the flue gas is low to continuing not enough to rise after a plurality of baffles speed reduction, and the dust falls back down along with the guide of the semicircle groove about the baffle, and the dust in the flue gas can be got rid of in baffle and the thin filter screen of mutually supporting, avoids air pollution.

2. The utility model discloses a hollow heat preservation stove device of coal-fired hot-blast furnace, it drops the mesh in the slightly little rack of mesh after burning on burning the frame to continue to burn through the coal cinder, make the coal cinder burning abundant, avoid calorific loss, the coal cinder is burning on burning the frame, the coal cinder is cracked to drop downwards from burning the frame in the combustion process, drop in the rack, the rack mesh can block slightly the coal cinder slightly bigger little, the coal cinder that drops lasts the burning heat supply until complete combustion in the rack, can avoid the coal cinder to burn incompletely and cause calorific loss in getting into the cinder box, improve the coal cinder heat utilization ratio.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

FIG. 1 is a schematic view of the overall structure of the hollow holding furnace device of the coal-fired hot-blast stove of the present invention;

FIG. 2 is a schematic view of the overall internal structure of the hollow holding furnace device of the coal-fired hot-blast stove of the present invention;

FIG. 3 is a schematic structural view of a baffle plate of the hollow holding furnace device of the coal-fired hot-blast stove of the present invention;

FIG. 4 is a schematic structural view of a holding furnace of the hollow holding furnace device of the coal-fired hot-blast stove of the present invention;

fig. 5 is a schematic circuit diagram of the hollow holding furnace device of the coal-fired hot-blast stove of the utility model.

In the figure: 1. a holding furnace; 2. a smoke pipe; 3. discharging the heat pipe; 4. a feed inlet; 5. a cinder box; 6. a handle; 7. a base; 8. a slag outlet door; 9. a hinge; 10. an air pump; 11. An air inlet pipe; 12. a valve; 13. pulling a handle; 14. a furnace door; 15. a baffle plate; 16. a fine filter screen; 17. a hollow furnace chamber; 18. a material platform; 19. a net frame; 20. a slag storage chamber; 21. A burning frame; 22. a semicircular groove; 23. a heat-insulating layer; 24. a wall body.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following 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.

Referring to fig. 1-5, the present invention provides a technical solution: a coal-fired hot air furnace comprises a heat preservation furnace 1, wherein a heat preservation layer 23 is coated on the inner surface of the heat preservation furnace 1, a wall body 24 is fixedly connected to the left side of the heat preservation layer 23, a smoke tube 2 is connected to the top end of the heat preservation furnace 1 in a clearance manner, a hollow furnace chamber 17 is formed in the heat preservation furnace 1, two sides of the top end in the heat preservation furnace 1 are detachably connected with baffle plates 15, the baffle plates 15 are connected between a semicircular groove 22 and a semicircular groove 22, the baffle plates 15 are located above a fine filter screen 16, a material platform 18 is fixedly connected to the bottom in the heat preservation furnace 1, a burning frame 21 is embedded and connected in the middle of the material platform 18, a net frame 19 is detachably connected to the bottom end of the material platform 18, a feed inlet 4 is formed in the bottom of the heat preservation furnace 1, a cinder box 5 is welded to the bottom of the heat preservation furnace 1 and the, 5 surfaces of cinder box can be dismantled and be connected with

slag outlet door

8, 8 right sides of slag outlet door are bonded and are had handle 6, 5 bottom fixedly connected with bases 7 of cinder box.

In this embodiment (see fig. 1-5), the heat insulating layer 23 is wrapped around the wall 24 to perform heat insulating and heat insulating functions, the heat insulating layer 26 is made of a material with a small thermal conductivity coefficient, generally, a cement shell protective layer made of a mixture of asbestos fiber and cement is usually used, the wall 24 is made of a refractory material, the baffles 15 are installed obliquely, flue gas moves upwards from staggered hole gaps between the baffles 15, dust rises up and hits the baffles at a reduced speed, and the dust returns to the hollow furnace chamber 17 along the semicircular groove 22 after being decelerated for multiple times.

Wherein, the heat outlet pipe 3 is connected with the top end of the holding furnace 1 at the two sides of the clearance, and the air inlet pipe 11 is detachably connected with the left side of the bottom end of the holding furnace 1.

In this embodiment (see fig. 1), after the coal is burned, the air temperature is raised, the high-temperature air leaves the holding furnace 1 through the heat outlet pipe 3, and the air inlet pipe 11 delivers the air into the holding furnace 1.

Wherein, the air inlet pipe 11 is detachably connected with a valve 12, and an air inlet of the air inlet pipe 11 extends to the inside of the air pump 10.

In this embodiment (see fig. 1), the air pump 10 is started to deliver air into the air inlet pipe 11, and the valve 12 controls the air flow rate in the air inlet pipe 11.

The feed port 4 is connected with a furnace door 14 through a hinge 9, and a pull handle 13 is adhered to the outer surface of the furnace door 14.

In this embodiment (see fig. 1), the door 14 is opened by pulling the pull handle 13, and the coal briquette enters the holding furnace 1 through the feed port 4.

The air pump 10 and the current input end of the valve 12 are electrically connected with an external power supply through wires.

In this embodiment (see fig. 5), the air pump 10 and the valve 12 are powered by an external power source.

The utility model relates to a coal hot-blast stove, which comprises a stove 1 and a holding furnace; 2. a smoke pipe; 3. discharging the heat pipe; 4. a feed inlet; 5. a cinder box; 6. a handle; 7. A base; 8. a slag outlet door; 9. a hinge; 10. an air pump; 11. an air inlet pipe; 12. a valve; 13. pulling a handle; 14. a furnace door; 15. a baffle plate; 16. a fine filter screen; 17. a hollow furnace chamber; 18. a material platform; 19. a net frame; 20. a slag storage chamber; 21. a burning frame; 22. a semicircular groove; 23. a heat-insulating layer; 24. the wall body and the components are all universal standard components or components known by the technical personnel in the field, the structure and the principle of the wall body are known by the technical manual or by the conventional experimental method, when the wall body works, the external power supply supplies power, the pull handle 13 is pulled to open the furnace door 14, the coal blocks enter the hollow furnace chamber 17 in the heat preservation furnace 1 through the feed inlet 4, the coal blocks are accumulated on the burning frame 21 on the material table 18 to be burnt, the air pump 10 is started to convey air into the heat preservation furnace 1 through the air inlet pipe 11, the model of the air pump 10 is 750W-30L, the air flow entering the heat preservation furnace 1 can be adjusted through the valve 12, the valve 12 is of a cis-to-DN 15 integrated display type, smoke is generated in the burning process of the coal blocks, large particle dust contained in the smoke after the smoke rises through the fine filter screen 16 is filtered, the smoke continuously rises through the plurality of, the dust is guided back to the hollow furnace chamber 17 through the semicircular groove 22 on the baffle 15, the flue gas after the dust is removed is discharged to the outside through the smoke tube 2, the air heated after the coal briquette is burnt leaves the heat preservation furnace 1 through the heat outlet pipes 3 at the two sides of the heat preservation furnace 1 for heat supply, the coal briquette is gradually cracked in the burning process, the crushed coal briquette falls into the net rack 19 from the burning rack 21 for continuous burning, after the coal briquette continuously falling from the upper part is smashed to the completely burnt coal briquette, the coal briquette is cracked again to leave the net rack 19 and enter the slag storage chamber 20, the handle 6 is pulled to open the slag outlet door 8 after multiple times of feeding to clean the coal ash in the slag storage chamber 20, and the heat preservation furnace 1 is opened to clean the dust on the baffle 15 and the fine filter screen 16 after the heat supply is finished.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The coal-fired hot air furnace comprises a heat preservation furnace (1) and is characterized in that: the heat preservation furnace is characterized in that the heat preservation layer (23) is coated on the inner surface of the heat preservation furnace (1), the left side of the heat preservation layer (23) is fixedly connected with a wall body (24), a smoke tube (2) is connected to the top end of the heat preservation furnace (1) in a clearance mode, a hollow furnace chamber (17) is formed in the heat preservation furnace (1), a plurality of baffle plates (15) are detachably connected to the two sides of the top end of the interior of the heat preservation furnace (1), a semicircular groove (22) and a semicircular groove (22) are formed in the bottom end of each baffle plate (15) in a linking mode, each baffle plate (15) is located above a fine filter screen (16), a material table (18) is fixedly connected to the bottom of the heat preservation furnace (1), a burning frame (21) is embedded in the middle of the material table (18), a net rack (19) is detachably connected to the bottom end of the material table (18), a feeding hole, holding furnace (1) and cinder box (5) intercommunication, cinder box (5) inside has been seted up and has been deposited cinder room (20), cinder box (5) surface can be dismantled and is connected with slag outlet door (8), slag outlet door (8) right side bonds and has handle (6), cinder box (5) bottom fixedly connected with base (7).

2. The coal-fired hot air furnace of claim 1, characterized in that: heat outlet pipes (3) are connected to two sides of the top end of the heat preservation furnace (1) in a clearance mode, and an air inlet pipe (11) is detachably connected to the left side of the bottom end of the heat preservation furnace (1).

3. The coal-fired hot air furnace of claim 2, characterized in that: the air inlet pipe (11) is detachably connected with a valve (12), and an air inlet of the air inlet pipe (11) extends into the air pump (10).

4. The coal-fired hot air furnace of claim 1, characterized in that: the feed inlet (4) is connected with a furnace door (14) through a hinge (9), and a pull handle (13) is bonded on the outer surface of the furnace door (14).

5. The coal-fired hot blast stove according to claim 3, characterized in that: the air pump (10) and the current input end of the valve (12) are electrically connected with an external power supply through leads.