CN216815071U

CN216815071U - Decomposing furnace with waste heat recovery function

Info

Publication number: CN216815071U
Application number: CN202220350677.8U
Authority: CN
Inventors: 沈建龙
Original assignee: AVIC International Beijing Co Ltd
Current assignee: AVIC International Beijing Co Ltd
Priority date: 2022-02-21
Filing date: 2022-02-21
Publication date: 2022-06-24
Anticipated expiration: 2032-02-21

Abstract

The utility model relates to the technical field of decomposing furnaces, and discloses a decomposing furnace with a waste heat recovery function, which comprises a furnace body, wherein a sieve plate is arranged in the furnace body, one side of the furnace body is connected with a feeding pipe, the top surface of the sieve plate is connected with a limiting ring, the outer side of the sieve plate is connected with a spring, the other side of the spring is connected to the inner wall of the furnace body, the bottom of the sieve plate is provided with a placing plate, the top of the furnace body is provided with a motor, the output end of the motor is fixedly connected with a rotating shaft, the bottom of the rotating shaft is connected with an eccentric wheel, the eccentric wheel is positioned in the limiting ring, the decomposing furnace with the waste heat recovery function rotates through the driving rotating shaft of the motor, so that the eccentric wheel at the bottom of the rotating shaft rotates in the limiting ring to drive the sieve plate to rock, and raw materials on the sieve plate can uniformly fall into the furnace body when the sieve plate rocks, the uniformity of the reduction of the raw material is improved, and the decomposition effect of the raw material is improved.

Description

Decomposing furnace with waste heat recovery function

Technical Field

The utility model relates to the technical field of decomposing furnaces, in particular to a decomposing furnace with a waste heat recovery function.

Background

The decomposing furnace is a novel thermal equipment with the simultaneous performance of fuel combustion, heat exchange and decomposition reaction, the variety and the form are various, the basic principle is that preheated raw material, a certain amount of fuel and a proper amount of hot gas are fed into the decomposing furnace at the same time, the raw material is in a suspension or boiling state in the decomposing furnace, and the decomposition reaction of carbonate in the raw material is completed.

The flue gas that current dore furnace produced with the burning when using is discharged, but the direct discharge of heat that contains in the flue gas can thermal waste, and some novel dore furnaces can carry out recycle with the heat of discharging the flue gas, avoid the waste of resource.

However, when the existing decomposing furnace with the waste heat recovery function is used for feeding, the quantity of raw materials is not well controlled, the adhesion among raw material particles is difficult to uniformly disperse, and particularly when the feeding is not uniform, a large stream of raw materials can directly and quickly fall to the bottom of the decomposing furnace along with airflow from an air duct. But not fully contacted with the high-temperature flue gas, so that the raw materials are not completely decomposed.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects of the prior art, the utility model provides the decomposing furnace with the waste heat recovery function, which has the advantages of effectively improving the uniformity of raw material reduction when raw material is put in, preventing a large strand of raw material from directly falling to the bottom of the decomposing furnace along with airflow and the like, and solves the problem that partial raw material is not sufficiently decomposed by the conventional decomposing furnace.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a dore furnace that possesses waste heat recovery function, includes the furnace shaft, the inside of furnace shaft is provided with the sieve, one side of furnace shaft is connected with the inlet pipe, be connected with the spacing ring on the top surface of sieve, the outside of sieve is connected with the spring, the opposite side of spring is connected on the inner wall of furnace shaft, the bottom of sieve is provided with places the board, the motor is installed at the top of furnace shaft, the output fixedly connected with pivot of motor, the bottom of pivot is connected with the eccentric wheel, the eccentric wheel is located the inside of spacing ring.

Preferably, the bottom of the furnace body is connected with a slag discharging pipe and supporting legs, the slag discharging pipe is located at the central position of the furnace body, and the supporting legs are located at the edge of the bottom of the furnace body.

Preferably, one side of the furnace body is connected with a smoke exhaust pipe, the other side of the smoke exhaust pipe is connected with a filter box, the top end of the filter box is communicated with a connecting pipe, the top of the connecting pipe is connected with a preheating pipe, and the preheating pipe is spirally wound on the outer wall of the feeding pipe.

Preferably, the internally mounted of rose box has a plurality of installing frames, the filter screen has been placed to the inside of installing frame.

Preferably, the feed pipe discharge end extends above the screen deck.

Preferably, the outlet end of the preheating pipe is connected with other heating equipment.

In summary, the utility model includes at least one of the following advantages:

1. this dore furnace that possesses waste heat recovery function, it is rotatory through the drive pivot of motor for the eccentric wheel of pivot bottom drives the sieve and rocks at the spacing ring internal rotation, can fall into the inside of stack of a stove on the sieve comparatively uniformly when the sieve rocks, improves the homogeneity that the raw material descends, improves the decomposition effect of raw material.

2. This dore furnace that possesses waste heat recovery function preheats the inlet pipe through the last remaining heat of preheating tube on will discharging fume the pipe, can preheat the raw material in the inlet pipe in advance, makes things convenient for the decomposition in later stage, can improve decomposition efficiency effectively, the loss of reduction energy.

Drawings

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

FIG. 2 is a schematic cross-sectional view of the present invention;

FIG. 3 is a schematic view of the interior of the shaft according to the present invention;

fig. 4 is a schematic view of the installation structure of the filter screen and the installation frame of the present invention.

Wherein: 1. a furnace body; 2. a sieve plate; 3. a feed pipe; 4. a limiting ring; 5. a spring; 6. placing the plate; 7. a motor; 8. a rotating shaft; 9. an eccentric wheel; 10. a slag discharge pipe; 11. supporting legs; 12. a smoke exhaust pipe; 13. a filter box; 14. a connecting pipe; 15. a preheating pipe; 16. installing a frame; 17. and (5) filtering by using a filter screen.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, a decomposing furnace with waste heat recycling function comprises a furnace body 1, a screen plate 2 is arranged inside the furnace body 1, one side of the furnace body 1 is connected with a feeding pipe 3, raw materials are added into the furnace body 1 through the feeding pipe 3 and are conveyed onto the screen plate 2, and the discharging end of the feeding pipe extends to the upper part of the screen plate 2, so that the raw materials can completely fall onto the screen plate 2.

Be connected with spacing ring 4 on the top surface of sieve 2, spacing ring 4 is rectangular form, and the outside equidistance of sieve 2 is connected with spring 5, and spring 5's opposite side fixed connection is on the inner wall of furnace shaft 1, and the bottom of sieve 2 is provided with places board 6, places board 6 for the ring form and fix on the inner wall of furnace shaft 1, places board 6 and supports sieve 2.

The top of furnace body 1 is installed motor 7, and the output fixedly connected with pivot 8 of motor 7, and the bottom of pivot 8 is connected with eccentric wheel 9, and eccentric wheel 9 is located the inside of spacing ring 4.

Through the technical scheme, the rotating shaft 8 is driven to rotate through the rotation of the motor 7, the eccentric wheel 9 connected with the rotating shaft 8 is driven to rotate when the rotating shaft 8 rotates, when the eccentric wheel 9 rotates, the circle center end of the eccentric wheel 9 is in contact with the side wall of the limiting ring 4, certain extrusion effect is achieved on the limiting ring 4, the limiting ring 4 drives the sieve plate 2 connected with the limiting ring to press the spring 5 under the action of extrusion force, the position of the sieve plate 2 is further changed, when the horizontal axis of the eccentric wheel 9 is parallel to the horizontal axis of the limiting ring 4, the eccentric wheel 9 does not extrude the limiting ring 4, the spring 5 compressed by force is restored to the original state again, the position is changed again, the sieve plate 2 can be in a movable state through the rotation of the eccentric wheel 9, the raw materials of the sieve plate 2 can effectively and uniformly fall from the sieve plate 2 all the time, and the decomposition efficiency of the raw materials is further improved, and the blocking of the sieve plate 2 can be effectively avoided.

Specifically, the bottom of the furnace body 1 is connected with a slag discharging pipe 10 and supporting legs 11, the slag discharging pipe 10 is located at the central position of the furnace body 1, and the supporting legs 11 are located at the edges of the bottom of the furnace body 1.

Through above-mentioned technical scheme, the connected mode between supporting leg 11 and the stack 1 is the welding to play the supporting role to holistic stack 1, and slag pipe 10 is used for discharging the fuel after burning in stack 1.

Specifically, one side of stack 1 is connected with the pipe 12 of discharging fume, the opposite side of the pipe 12 of discharging fume is connected with rose box 13, the internally mounted of rose box 13 has a plurality of installing frames 16, and place filter screen 17 in installing frame 16's inside, make and to dismantle between filter screen 17 and the installing frame 16, the top intercommunication that filter box 13 was dismantled to filter screen 17 to the convenience has connecting pipe 14, connecting pipe 14's top is connected with preheating pipe 15, preheating pipe 15 is the heliciform winding on the outer wall of inlet pipe 3.

Through the technical scheme, the flue gas that produces when discharging fume pipe 12 with the burning of stack 1 discharges, arrange in preheating pipe 15 through connecting pipe 14 after a plurality of filter screens 17 in the rose box 13 filter, remaining heat transfer to in preheating pipe 15 in the pipe 12 will discharging fume, thereby carry out preheating to inlet pipe 3, and preheating pipe 15 is the heliciform winding on the outer wall of inlet pipe 3, improve the heat-conduction to inlet pipe 3, can heat the raw materials when the feeding, make things convenient for latter decomposition, recycle the heat, and saved the consumption of energy, and the export of preheating pipe 15 can be connected with other heating equipment, a heat supply demand for other equipment.

When using, it drops into raw material through inlet pipe 3, carry the raw material on sieve 2 through the transport of inlet pipe 3, secondly starter motor 7, motor 7 drives pivot 8 rotatory, pivot 8 drives eccentric wheel 9 of being connected with it rotatory, make eccentric wheel 9 at the 4 internal rotations of spacing ring, and with the inner wall contact of spacing ring 4, certain squeezing action has to sieve 2, spacing ring 4 orders about sieve 2 under the extruded effort and carries out rocking of making a round trip, and extrude spring 5, sieve 2 can be with the comparatively even falling of raw material on sieve 2 when making a round trip to rock, avoid the effect of big strand raw material directly falling the decomposition stove bottom under the air current, can effectively improve the decomposition effect of raw material.

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 utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a possess waste heat recovery function's dore furnace, includes shaft (1), its characterized in that: the inside of shaft (1) is provided with sieve (2), one side of shaft (1) is connected with inlet pipe (3), be connected with spacing ring (4) on the top surface of sieve (2), the outside of sieve (2) is connected with spring (5), the opposite side of spring (5) is connected on the inner wall of shaft (1), the bottom of sieve (2) is provided with places board (6), motor (7) are installed at the top of shaft (1), the output fixedly connected with pivot (8) of motor (7), the bottom of pivot (8) is connected with eccentric wheel (9), eccentric wheel (9) are located the inside of spacing ring (4).

2. The decomposition furnace with a waste heat recovery function according to claim 1, wherein: the bottom of furnace shaft (1) is connected with slag discharging pipe (10) and supporting leg (11), slag discharging pipe (10) is located the central point of furnace shaft (1), supporting leg (11) is located the edge of furnace shaft (1) bottom.

3. The decomposition furnace with a waste heat recovery function according to claim 1, wherein: one side of the furnace body (1) is connected with a smoke exhaust pipe (12), the other side of the smoke exhaust pipe (12) is connected with a filter box (13), the top end of the filter box (13) is communicated with a connecting pipe (14), the top of the connecting pipe (14) is connected with a preheating pipe (15), and the preheating pipe (15) is spirally wound on the outer wall of the feeding pipe (3).

4. The decomposition furnace with a waste heat recovery function according to claim 3, wherein: the inside mounting of rose box (13) has a plurality of installing frames (16), filter screen (17) have been placed to the inside of installing frame (16).

5. The decomposition furnace with a waste heat recovery function according to claim 1, wherein: the discharge end of the feeding pipe (3) extends to the upper part of the sieve plate (2).

6. The decomposition furnace with a waste heat recovery function according to claim 3, wherein: the outlet end of the preheating pipe (15) is connected with other heating equipment.