CN211147311U

CN211147311U - Heating furnace

Info

Publication number: CN211147311U
Application number: CN201922018513.6U
Authority: CN
Inventors: 李涛; 周渊博; 张静; 贡海荣; 张婷; 杨义振; 刘淼; 李葳
Original assignee: Beijing Heron Engineering Technology Co ltd
Current assignee: Beijing Heron Engineering Technology Co ltd
Priority date: 2019-11-19
Filing date: 2019-11-19
Publication date: 2020-07-31
Anticipated expiration: 2029-11-19

Abstract

The utility model discloses a heating furnace, belonging to the heating field; the key point of the technical scheme is that the furnace comprises a heat insulation sleeve arranged at the center of the interior of a furnace body, and the interior of the furnace body is divided into an inner cavity and an outer cavity by the heat insulation sleeve; the burner is arranged in the outer cavity, and two independent heated pipelines are arranged in the inner cavity and the outer cavity. The utility model provides a conventional heating furnace only can heat the problem to a material simultaneously, reached and to have heated two kinds of materials, improved work efficiency's effect.

Description

Heating furnace

Technical Field

The utility model relates to a heating field, more specifically the theory that says so, it relates to a heating furnace.

Background

The heating furnace is applied to various industrial fields such as petroleum, chemical industry, metallurgy, machinery, heat treatment, surface treatment, building materials, electronics, materials, light industry, daily chemicals, pharmacy and the like.

Common heating furnace can only heat a material simultaneously, so in the in-process of production, when needing to heat different material types, only can heat in proper order, and need adjust the heat at the in-process of heating, so cause the influence to work efficiency.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a heating furnace, its heat insulating sleeve through having thermal-insulated performance makes the temperature difference of inner chamber and exocoel, has realized the purpose that can heat different kinds of materials simultaneously, improves work efficiency, can also utilize the maximize to the energy, reduces the waste of the energy.

In order to achieve the above purpose, the utility model provides a following technical scheme: a heating furnace comprises a furnace body and a plurality of burners which are uniformly distributed and arranged on the bottom surface of the furnace body; the furnace body is characterized by also comprising a heat insulation sleeve arranged at the center of the interior of the furnace body, wherein the heat insulation sleeve divides the interior of the furnace body into an inner cavity and an outer cavity;

the burner is arranged in the outer cavity, and two independent heated pipelines are respectively arranged in the inner cavity and the outer cavity

Through adopting above-mentioned technical scheme, the radiation shield is with furnace body inside share inner chamber and exocoel, and because the radiation shield has certain thermal-insulated effect, and then the temperature that makes the inner chamber is less than the temperature of exocoel, so the inner chamber can heat some materials that can not bear the high temperature, the exocoel can heat some high temperatures and carry out the material that heats, so make the furnace body can heat the material of different race simultaneously, with the energy utilization maximize, the waste of the energy reduces, can also improve the efficiency of work.

The utility model discloses further set up to: the circular hole is opened in the furnace body, and the heat insulating sleeve can be detached through the circular hole.

Through adopting above-mentioned technical scheme, can change different radiation shields through the round hole, and different radiation shields are made by different thermal insulation materials, so the thermal-insulated effect of radiation shield is different, makes the temperature difference in the inner chamber, and then makes the inner chamber can change the radiation shield according to the temperature upper limit of heating material, improves the application scope of heating furnace.

The utility model discloses further set up to: the round hole is fixedly connected with a fixing ring, the lower end of the heat insulation sleeve is closed and is fixedly connected with a fixing disc, and the fixing ring and the fixing disc can be bolted together.

Through adopting above-mentioned technical scheme, the cooperation of solid fixed ring and fixed disk can be better to the sealed effect of round hole, avoids thermal scattering and disappearing.

The utility model discloses further set up to: the upper end of the furnace body is fixedly connected with a preheating cylinder, the upper end of the preheating cylinder is fixedly connected with a chimney, and the two sets of heated pipelines respectively comprise a feeding pipe, a preheating pipe, a heating pipe and a discharging pipe;

the feeding pipe, the preheating pipe, the heating pipe and the discharging pipe are sequentially connected, the heating pipe is positioned in the preheating cylinder, and the heating pipe is spirally arranged in the preheating cylinder;

the feeding pipe penetrates through the side wall of the preheating cylinder, one end of the feeding pipe is fixedly connected with the preheating pipe, and the other end of the feeding pipe protrudes out of the outer wall of the preheating cylinder and can be connected with an external pipeline;

the discharging pipe penetrates through the furnace body and the heat insulation sleeve or independently penetrates through the side wall of the furnace body, one end of the discharging pipe is connected with the heating pipe in the inner cavity or the outer cavity, and the other end of the discharging pipe protrudes out of the side wall of the furnace body.

Through adopting above-mentioned technical scheme, the preheater tube is in preheating section of thick bamboo department, the flue gas is discharged in preheating section of thick bamboo entering chimney, so can utilize the waste heat of flue gas to heat the preheater tube, reach the purpose of preheating, do not need the extra energy, reduce the waste of the energy, can also make exhaust gas temperature not too high, avoid causing the influence to the environment, the heating pipe spiral sets up, can increase area of contact and the time of preheater tube and flue gas, and then make the effect of preheating better.

The utility model discloses further set up to: the heating pipe is positioned in the inner cavity or the outer cavity, the heating pipe is vertically arranged in a snake shape, and the heating pipes are uniformly distributed around the axis of the heat insulation sleeve;

the heating pipes are respectively arranged close to the furnace body and the inner wall of the heat insulation sleeve, and the heating pipes are transversely arranged in an S shape.

Through adopting above-mentioned technical scheme, the heating pipe is snakelike the setting of being in the vertical direction, is S-shaped setting on horizontal, can increase the length of heating pipe, and then increases the time of material in inner chamber or exocoel, can improve the effect of heating.

The utility model discloses further set up to: : the inside fixedly connected with two criss-cross crossbeams of chimney, the lower surface fixedly connected with a plurality of montants of crossbeam, the montant stretches into the heating pipe fixed connection in the inner chamber and the inner chamber.

Through adopting above-mentioned technical scheme, the radiation shield can be dismantled, so the radiation shield can not support the heating pipe in the inner chamber, and the cooperation of crossbeam and montant can support the heating pipe in the inner chamber, makes the heating pipe more stable, can not lead to the fact the influence to the heating pipe in the inner chamber to the dismantlement of radiation shield.

The utility model discloses further set up to: the upper end of the heat insulation sleeve is provided with a vertical abdicating groove which can accommodate the discharge pipe;

a plurality of chutes which are uniformly distributed are formed in the side wall of the inner ring of the fixing ring, and vertical sliding rails which can slide in the chutes are fixedly connected to the outer wall of the heat insulation sleeve.

Through adopting above-mentioned technical scheme, the installation that the groove of stepping down can avoid the radiation shield sleeve receives the influence of discharging pipe, and spout and slide rail cooperation can make the groove of stepping down better align with the discharging pipe, reduce the probability that groove of stepping down and discharging pipe can not align, improve the efficiency of work.

The utility model discloses further set up to: : a plurality of horizontal supporting rods are fixedly connected to the inner wall of the furnace body, arc-shaped supporting plates are fixedly connected to the end portions, close to the heat insulation sleeves, of the supporting rods, and the supporting plates can be attached to the inner walls of the heat insulation sleeves.

Through adopting above-mentioned technical scheme, the cooperation of bracing piece and backup pad can support the radiation shield sleeve, reduces the probability that the radiation shield sleeve takes place to empty, makes installing inside the furnace body that the radiation shield sleeve can be better.

The utility model discloses further set up to: a chamfer is formed at the lower edge of the side wall of the supporting plate close to the heat insulation sleeve.

Through adopting above-mentioned technical scheme, the chamfer increases the distance between edge and the radiation shield sleeve under the backup pad, when the installation radiation shield sleeve, can make in the better space that gets into a plurality of backup pads of radiation shield sleeve and constitute, reduces the probability that radiation shield sleeve and backup pad take place to interfere.

To sum up, the utility model discloses compare and have following beneficial effect in prior art:

1. the furnace body is internally provided with the heat insulation sleeve, so that the interior of the furnace body is divided into the inner cavity and the outer cavity, and the inner cavity and the outer cavity have different temperatures because the heat insulation sleeve has a certain heat insulation effect, so that the heating furnace can simultaneously heat materials with different temperature requirements, the energy can be better utilized, the energy waste is reduced, and the working efficiency can be improved;

2. the round hole has been seted up to the bottom surface of furnace body, makes the radiation shield sleeve can dismantle, so can be according to the temperature requirement of material, change the radiation shield sleeve that thermal-insulated coefficient is different, and then make the temperature difference in the inner chamber, can adapt to different materials, improve the application scope of heating furnace.

Drawings

FIG. 1 is a block diagram of an embodiment;

FIG. 2 is a sectional view showing the inner structure of the furnace body in the embodiment;

FIG. 3 is an exploded view of the embodiment highlighting the chute;

fig. 4 is an enlarged view of a portion a in fig. 2.

In the figure: 1. a furnace body; 11. a preheating cylinder; 12. a chimney; 13. an inner cavity; 14. an outer cavity; 15. a circular hole; 16. a fixing ring; 17. a chute; 2. heating the pipeline; 21. a feed pipe; 22. a preheating pipe; 23. heating a tube; 24. a discharge pipe; 3. a burner; 4. a heat insulating sleeve; 41. a disc; 42. fixing the bolt; 43. a cross beam; 44. a vertical plate; 45. a yielding groove; 46. a slide rail; 5. a support bar; 51. a support plate; 52. and (6) chamfering.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings. In which like parts are designated by like reference numerals. 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 "bottom" and "top," "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.

Example (b): a heating furnace, as shown in figure 1 and figure 2, comprises a furnace body 1 and a heating pipeline 2 arranged inside the furnace body 1; the lower extreme fixedly connected with of furnace body 1 a plurality of evenly distributed's combustor 3, in the material got into heating tube 2, combustor 3 can make the inside temperature of furnace body higher to can heat the material.

As shown in fig. 2, the upper end of the furnace body 1 is fixedly connected with a preheating cylinder 11, and the upper end of the preheating cylinder 11 is fixedly connected with a smoke pipe 12; the heating pipeline 2 comprises a feeding pipe 21, a preheating pipe 22, a heating pipe 23 and a discharging pipe 24 which are connected in sequence; the preheating pipe 22 is positioned in the preheating cylinder 11, the feeding pipe 21 penetrates through the side wall of the preheating cylinder 11, one end of the feeding pipe 21 is fixedly connected with the preheating pipe 22, and the other end of the feeding pipe 21 protrudes out of the side wall of the preheating cylinder 11 and can be connected with an external pipeline; the heating pipe 23 is positioned in the furnace body 1, the discharge pipe 24 is arranged close to the upper end of the furnace body 1 and protrudes out of the side wall of the furnace body 1, one end of the discharge pipe 24 is fixedly connected with the heating pipe 23, and the other end of the discharge pipe 24 protrudes out of the side wall of the furnace body 1 and can be connected with an external pipeline; the flue gas that 3 combustors produced gets into chimney 12 through preheating section of thick bamboo 11 and discharges again, also contains certain heat in the flue gas, but compares furnace body 1 inside temperature lower, so be fit for as the heat source of preheating, and utilize preheating of flue gas simultaneously, can realize the maximize utilization of the energy, avoid causing the waste, can also make the exhaust gas temperature can not too high, reduce the influence that causes the atmosphere.

The preheating pipe 22 is spirally arranged in the preheating cylinder 11, so that the length of the preheating pipe 22 in the preheating cylinder 11 can be increased, the time of materials passing through the preheating cylinder 11 is further increased, and the preheating effect can be further improved; heating pipe 23 is vertical in furnace body 1 and is snakelike the setting, and S-shaped setting on horizontal, and then makes the heating pipe 23 longer in the part of furnace body 1, increases the material through the inside time of furnace body 1, improves the effect of heating, can make the material fully heat.

As shown in fig. 2, a vertical heat insulating sleeve 4 is further arranged in the furnace body 1, the axis of the heat insulating sleeve 4 is coincident with the axis of the furnace body 1, the heat insulating sleeve 4 divides the interior of the furnace body 1 into an inner cavity 13 and an outer cavity 14, and the burner 3 is positioned in the outer cavity 14; the heat insulation sleeve 4 has heat insulation performance, so the temperature in the inner cavity 13 is lower, and the heating pipelines 2 are two sets, wherein the heating pipe 23 of one set of heating pipeline 2 is positioned in the inner cavity 13; because the temperature of inner chamber 13 is lower, so can heat the material of injecing the upper limit of temperature, make furnace body 1 can heat different kinds of materials simultaneously, and do not need extra heat source, can improve the utilization ratio of the energy, can also improve work efficiency simultaneously.

As shown in fig. 2 and 3, the bottom of the furnace body 1 is further provided with a circular hole 15, the heat insulating sleeve 4 passes through the circular hole 15 and enters the furnace body 1, the lower surface of the furnace body 1 at the position of the circular hole 15 is also fixedly connected with a fixing ring 16, and the inner diameter of the fixing ring 16 is the same as the diameter of the circular hole 15; the lower end of the heat insulation sleeve 4 is fixedly connected with a disc 41, and the outer diameter of the disc 41 is the same as that of the fixing ring 16; after the heat insulation sleeve 4 is installed in the furnace body 1, the upper surface of the disc 41 is attached to the lower surface of the fixing ring 16, the disc 41 is also inserted with a fixing bolt 42, and the tail end of the fixing bolt 42 is in threaded connection with the fixing ring 16; therefore, the heat insulation sleeve 4 can be detached and replaced, the heat insulation sleeve 4 can be made of different heat insulation materials, so that the heat insulation coefficients of different heat insulation sleeves 4 are different, the temperature in the inner cavity 13 is different, different materials can be heated, and the application range of the furnace body 1 is enlarged; the disk 41 and the fixing ring 16 are bolted together, and heat inside the furnace body 1 can be prevented from escaping from the lower portion.

The heat insulation sleeve 4 is made of glass fiber cotton plates, polyurethane foam plates, centrifugal stripping fiber cotton, micro-nano heat insulation plates and aerogel felts; glass fiber cotton board/felt: the heat conductivity coefficient is 0.035 watt-hour, the thickness is 3 mm-5 mm, the white color is divided into a hard board and a soft felt shape, and the glass fiber structure is adopted; polyurethane foam board (PU/PIR): the heat conductivity coefficient is 0.02-0.035 watt-hour, and the product is multicolor, hard and brittle, and the thickness is 10-200 mm; centrifugally stripping fiber cotton/rock wool: the heat conductivity coefficient is generally 0.038 watt-hour, the thickness is 30-200 mm, and the color is yellow; micro-nano heat insulation plate: the heat conductivity coefficient is 0.02 watt-hour; aerogel felt: the heat conductivity coefficient at normal temperature is 0.018W/(K.m), the thickness is 2 mm-10 mm, and the white or blue flexible felt can be customized into a rigid plate-shaped material according to requirements; therefore, the heat insulating coefficient of the heat insulating jacket 4 is different, and the temperature in the cavity 13 can be made different.

As shown in fig. 2, two crossed beams 43 are arranged above the heat insulating sleeve 4, the beams 43 are positioned in the preheating cylinder 11, and two ends of the beams 43 are fixedly connected with the inner wall of the preheating cylinder 11; the lower surfaces of the cross beams 43 are fixedly connected with vertical plates 44, and the vertical plates 44 are uniformly distributed around the axis of the heat insulation sleeve 4; the lower extreme of riser 44 gets into downwardly extending in the radiation shield casing 4, and riser 44 and the inside heating pipe 23 fixed connection of radiation shield casing 4, riser 44 also with the preheating pipe 22 fixed connection with the inside heating pipe 23 intercommunication of radiation shield casing 4, radiation shield casing 4 can be dismantled, so the inside heating pipe 23 of radiation shield casing 4 does not have with radiation shield casing 4 fixed connection, crossbeam 43 and riser 44's cooperation can support the inside heating pipe of radiation shield casing 4, avoid the heating pipe 23 in the radiation shield casing 4 to take place to fall.

As shown in fig. 2, the upper end of the heat insulation sleeve 4 is provided with a strip-shaped abdicating groove 45, the abdicating groove 45 is vertically arranged, and the abdicating groove 45 can accommodate the discharging pipe 24, so that the discharging pipe 24 does not affect the installation of the heat insulation sleeve 4.

As shown in fig. 3, the fixing ring 16 and the inner ring side wall of the circular hole 15 are both provided with a sliding groove 17, the outer wall of the heat insulating sleeve 4 is fixedly connected with a sliding rail 46 capable of sliding in the sliding groove 17, and the sliding rail 46 is arranged near the lower end of the heat insulating sleeve 4; the cooperation of spout 17 and slide rail 46 can play the effect of location to the installation of radiation shield 4, makes the groove 45 of stepping down can be accurate align with discharging pipe 24, makes things convenient for the installation of radiation shield 4, improves work efficiency.

As shown in fig. 2 and 4, a plurality of support rods 5 are fixedly connected to the inner wall of the furnace body 1, the plurality of support rods 5 are uniformly distributed around the axis of the heat insulating sleeve 4, an arc-shaped support plate 51 is fixedly connected to one end of each support rod 5 close to the heat insulating sleeve 4, and the support plate 51 can be attached to the outer wall of the heat insulating sleeve 4, so that the heat insulating sleeve 4 can be manufactured by matching the support rods 5 and the support plates 51, and the heat insulating sleeve 4 can be stably stood in the furnace body 1; chamfer 52 has been seted up to the surperficial lower part edge of backup pad 51 and the laminating of radiation shield 4, then when installation radiation shield 4, chamfer 52 can increase the distance between backup pad 51 lower part and the radiation shield 4, makes things convenient for in radiation shield 4 gets into the space that a plurality of backup pads 51 constitute, reduces radiation shield 4 and backup pad 51 mutual interference's probability, makes things convenient for radiation shield 4's installation.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A heating furnace comprises a furnace body (1) and a plurality of burners (3) which are uniformly distributed and arranged on the bottom surface of the furnace body (1); the method is characterized in that: the furnace body (1) is characterized by further comprising a heat insulation sleeve (4) arranged at the center of the interior of the furnace body (1), wherein the heat insulation sleeve (4) divides the interior of the furnace body (1) into an inner cavity (13) and an outer cavity (14);

the burner (3) is arranged in the outer cavity (14), and two independent heating pipelines are respectively arranged in the inner cavity (13) and the outer cavity (14).

2. The heating furnace according to claim 1, wherein: a round hole (15) is formed in the furnace body (1), and the heat insulation sleeve (4) can be detached through the round hole (15).

3. The heating furnace according to claim 2, wherein: round hole (15) department fixedly connected with solid fixed ring (16), the lower extreme of radiation shield cover (4) seals and fixedly connected with fixed disk, gu fixed ring (16) and fixed disk can the bolt joint together.

4. A heating furnace according to claim 3, characterized in that: the upper end of the furnace body (1) is fixedly connected with a preheating cylinder (11), the upper end of the preheating cylinder (11) is fixedly connected with a chimney (12), and the two sets of heated pipelines respectively comprise a feeding pipe (21), a preheating pipe (22), a heating pipe (23) and a discharging pipe (24);

the feeding pipe (21), the preheating pipe (22), the heating pipe (23) and the discharging pipe (24) are sequentially connected, the heating pipe (23) is positioned inside the preheating cylinder (11), and the heating pipe (23) is spirally arranged inside the preheating cylinder (11);

the feeding pipe (21) penetrates through the side wall of the preheating cylinder (11), one end of the feeding pipe (21) is fixedly connected with the preheating pipe (22), and the other end of the feeding pipe (21) protrudes out of the outer wall of the preheating cylinder (11) and can be connected with an external pipeline;

the discharge pipe (24) penetrates through the furnace body (1) and the heat insulation sleeve (4) or independently penetrates through the side wall of the furnace body (1), one end of the discharge pipe (24) is connected with the heating pipe (23) in the inner cavity (13) or the outer cavity (14), and the other end of the discharge pipe (24) protrudes out of the side wall of the furnace body (1).

5. The heating furnace according to claim 4, wherein: the heating pipe (23) is positioned in the inner cavity (13) or the outer cavity (14), the heating pipe (23) is vertically arranged in a snake shape, and the heating pipe (23) is uniformly distributed around the axis of the heat insulation sleeve (4);

the heating pipes (23) are respectively arranged close to the inner walls of the furnace body (1) and the heat insulation sleeve (4), and the heating pipes (23) are transversely arranged in an S shape.

6. The heating furnace according to claim 4, wherein: two crossed cross beams (43) are fixedly connected inside the chimney (12), a plurality of vertical rods are fixedly connected to the lower surfaces of the cross beams (43), and the vertical rods extend into the inner cavity (13) and are fixedly connected with the heating pipes (23) in the inner cavity (13).

7. The heating furnace according to claim 4, wherein: the upper end of the heat insulation sleeve (4) is provided with a vertical abdicating groove (45), and the abdicating groove (45) can accommodate the discharge pipe (24);

a plurality of sliding grooves (17) which are uniformly distributed are formed in the side wall of the inner ring of the fixing ring (16), and vertical sliding rails (46) which can slide in the sliding grooves (17) are fixedly connected to the outer wall of the heat insulation sleeve (4).

8. The heating furnace according to claim 1, wherein: the furnace body (1) is characterized in that a plurality of horizontal support rods (5) are fixedly connected to the inner wall of the furnace body (1), arc-shaped support plates (51) are fixedly connected to the end portions, close to the heat insulation sleeve (4), of the support rods (5), and the support plates (51) can be attached to the inner wall of the heat insulation sleeve (4).

9. The heating furnace according to claim 8, wherein: and a chamfer (52) is formed at the lower edge of the side wall of the support plate (51) close to the heat insulation sleeve (4).