CN216592836U

CN216592836U - Rotary circulating air preheating furnace

Info

Publication number: CN216592836U
Application number: CN202123439946.2U
Authority: CN
Inventors: 张焕钰; 张茂银; 李在山
Original assignee: QINGDAO ZHANGSHI MACHINERY CO Ltd
Current assignee: QINGDAO ZHANGSHI MACHINERY CO Ltd
Priority date: 2021-12-31
Filing date: 2021-12-31
Publication date: 2022-05-24
Anticipated expiration: 2031-12-31

Abstract

The utility model discloses a rotary circulating air preheating furnace, which belongs to the technical field of preheating furnaces and is technically characterized by comprising a hot air generating mechanism, wherein the top of the hot air generating mechanism is provided with an automatic opening and closing mechanism for avoiding hot air loss, and the left side and the right side of the automatic opening and closing mechanism are respectively provided with a speed reducing motor for providing power for the left and right movement of a sliding door in the automatic opening and closing mechanism; the hot air generating mechanism comprises a thermal radiation reaction furnace, and a plurality of heating rods are arranged inside the thermal radiation reaction furnace. The utility model discloses a, when going out the tuber pipe and opening, the wind that the ventilation hole flowed through gets into the inside postheating of thermal radiation reacting furnace to preheating temperature in, and fan work carries out the circulation heating, and the gyration is supported and is connected the ring gear cooperation, can make the product rotate in preheating furnace cavity, ensures to preheat evenly to the ventilation hole can be opened and shut as required, avoids hot-blast loss, guarantees hot-blast inner loop, thereby can effectually improve the practicality of device.

Description

Rotary circulating air preheating furnace

Technical Field

The utility model belongs to the technical field of the preheater, concretely relates to gyration circulating air preheater.

Background

The preheating furnace is used for exchanging heat of low-quality fuel (mainly low-calorific-value fuel such as blast furnace gas, hot gas, tail gas and the like) or air in high-temperature flue gas of a heating furnace through a heat exchanger, so that the temperature of the low-quality fuel or air is increased to 900 ℃ generally to 300-.

The common radiation type preheating furnace or the circulating air preheating furnace has the phenomena of high energy consumption and uneven preheating effect, so that the rotary circulating air preheating furnace can be guaranteed to be started during working, energy is saved, hot air circulation can be utilized, preheating efficiency is improved, the rotary circulating air preheating furnace can rotate in a matching mode, and internal heating can be guaranteed to be more even.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a gyration circulated air preheater to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a rotary circulating air preheating furnace comprises a hot air generating mechanism, wherein an automatic opening and closing mechanism for avoiding hot air loss is arranged at the top of the hot air generating mechanism, and speed reducing motors for providing power for the left and right movement of a sliding door in the automatic opening and closing mechanism are arranged on the left and right sides of the automatic opening and closing mechanism;

the hot air generating mechanism comprises a thermal radiation reaction furnace, a plurality of heating rods are arranged inside the thermal radiation reaction furnace, a fan is communicated with the back of the inner wall of the thermal radiation reaction furnace, an air outlet pipe is communicated with the bottom of the inner wall of the thermal radiation reaction furnace, an air inlet pipe is communicated with the top of the thermal radiation reaction furnace, and the top of the air inlet pipe is attached to the bottom of the automatic opening and closing mechanism.

Preferably, the hot air generating mechanism further comprises a positioning ring, and the plurality of heating rods are circumferentially arranged and fixed on the surface of the positioning ring.

Preferably, the inner wall of the air outlet pipe is provided with a valve.

Preferably, the automatic opening and closing mechanism comprises positioning frames, two sliding doors are connected to the tops of the positioning frames in a sliding mode, and the air holes are formed in the opposite sides of the two sliding doors.

Preferably, two equal fixedly connected with screw thread holding ring in top of sliding door, two the screw thread holding ring all rotates to be connected with the screw thread dwang in one side of the dorsad, and two screw thread dwangs one section dorsad all with adjacent gear motor links to each other.

Preferably, the top of the thermal radiation reaction furnace is fixedly connected with a support frame, a rotary support is arranged in the support frame, and the top of the rotary support is attached to the bottom of the automatic opening and closing mechanism.

Preferably, a connecting toothed ring is placed at the top of the automatic opening and closing mechanism.

Compared with the prior art, the beneficial effects of the utility model are that: the device mainly by hot-blast emergence mechanism, gear motor and automatic mechanism that opens and shuts constitute, the inside fan of thermal radiation reacting furnace and the cooperation of heating rod, when the heating rod generates heat, the fan carries out work, the one-way hole of constituteing by two inside ventilation holes of automatic mechanism that opens and shuts carries out work, when the tuber pipe is opened, the wind that the ventilation hole flowed through gets into the inside back heating of thermal radiation reacting furnace to preheating temperature in, fan work carries out the circulation heating, and the gyration is supported and is connected the ring gear cooperation, can make the product rotate in preheating furnace cavity, ensure to preheat evenly, and the ventilation hole can open and shut as required, avoid hot-blast loss, guarantee hot-blast inner loop, thereby can effectually improve the practicality of device.

Drawings

Fig. 1 is a perspective view of the present invention;

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

fig. 3 is an enlarged view of a in fig. 2 according to the present invention.

In the figure: 1. a hot air generating structure; 11. a thermal radiation reaction furnace; 12. a positioning ring; 13. a fan; 14. a heating rod; 15. an air outlet pipe; 16. an air inlet pipe; 2. a reduction motor; 3. an automatic opening and closing mechanism; 31. a positioning frame; 32. a limiting plate; 33. a sliding door; 34; a vent hole; 5. a threaded rotating rod; 6. a rotary support; 7. a threaded locating ring; 8. and a toothed ring is connected.

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 to 3, the present invention provides a rotary circulating air preheating furnace, which includes a hot air generating mechanism 1, an automatic opening and closing mechanism 3 for preventing hot air from flowing away is disposed on the top of the hot air generating mechanism 1, and a speed reducing motor 2 for providing power for the left and right movement of an inner sliding door 33 of the automatic opening and closing mechanism 3 is disposed on each of the left and right sides of the automatic opening and closing mechanism 3;

the hot air generating mechanism 1 comprises a thermal radiation reaction furnace 11, a plurality of heating rods 14 are arranged inside the thermal radiation reaction furnace 11, a fan 13 is communicated with the back of the inner wall of the thermal radiation reaction furnace 11, an air outlet pipe 15 is communicated with the bottom of the inner wall of the thermal radiation reaction furnace 11, an air inlet pipe 16 is communicated with the top of the thermal radiation reaction furnace 11, and the top of the air inlet pipe 16 is attached to the bottom of the automatic opening and closing mechanism 3.

In this embodiment, preferably, the hot air generating mechanism 1 further includes a positioning ring 12, and the plurality of heating rods 14 are circumferentially arranged and fixed on the surface of the positioning ring 12, and the positioning ring 12 is used to stably and uniformly position the heating rods 14 inside the thermal radiation reaction furnace 11, so that the internal heating of the thermal radiation reaction furnace 11 is more uniform and comprehensive.

In this embodiment, it is preferable that the inner wall of the air outlet pipe 15 is provided with a valve, and whether the bottom of the thermal radiation reaction furnace 11 forms a passage is selected according to the requirement.

In this embodiment, preferably, the automatic mechanism 3 that opens and shuts includes locating rack 31, the equal sliding connection in top of two locating racks 31 has sliding door 33, ventilation hole 34 has all been seted up to one side that two sliding door 33 are relative, and the equal fixedly connected with limiting plate 32 in the front and the back of locating rack 31 inner wall, the front and the back of two sliding door 33 all with adjacent limiting plate 32 sliding connection, utilize sliding door 33 cooperation locating rack 31 to do a structure that can open and shut, and still have a ventilation hole 34 to ventilate when closed, minimum ventilation volume has been guaranteed, and can control the intake according to sliding door 33 at the inside slip of locating rack 31, high convenience and high speed, and increase limiting plate 32 and establish the sliding relation between ventilation hole 34 and the locating rack 31, the effectual stability that improves the device operation.

In this embodiment, it is preferred, the equal fixedly connected with thread positioning ring 7 in top of two sliding doors 33, two thread positioning rings 7 all rotate to be connected with screw dwang 5 to one side on the back, and two thread dwang 5 all link to each other with adjacent gear motor 2 to one section on the back, be provided with gear motor 2, thread dwang 5 and thread positioning ring 7, can make gear motor 2 drive screw dwang 5 rotate, under the threaded connection relation of thread positioning ring 7 and thread dwang 5, two sliding doors 33 can be closed or kept away from.

In this embodiment, preferably, the top of the thermal radiation reaction furnace 11 is fixedly connected with a support frame 4, a rotary support 6 is arranged inside the support frame 4, the top of the rotary support 6 is attached to the bottom of the automatic opening and closing mechanism 3, and the rotary support 6 is arranged to facilitate the rotation adjustment of the automatic opening and closing mechanism 3.

In this embodiment, preferably, the connecting gear ring 8 is placed at the top of the automatic opening and closing mechanism 3, and the rotary support 6 and the connecting gear ring 8 are arranged to rotate in cooperation with an external structure.

The utility model discloses a theory of operation and use flow: the device mainly takes place mechanism 1 by hot-blast, gear motor 2 and automatic mechanism 3 that opens and shuts constitute, 11 inside fan 13 of thermal radiation reacting furnace cooperates with heating rod 14, when heating rod 14 generates heat, fan 13 carries out work, the one-way hole of 3 inside two ventilation holes 34 constitutions of automatic mechanism that open and shut carries out work, when going out tuber pipe 15 and opening, the wind that ventilation hole 34 flowed through gets into thermal radiation reacting furnace 11 inside after heat to preheating temperature in, fan 13 work carries out circulation heating, and gyration is supported 6 and is connected the cooperation of ring gear 8, can make the product rotate in preheating furnace cavity, ensure to preheat evenly, and ventilation hole 34 can open and shut as required, avoid hot-blast loss, guarantee hot-blast inner loop, thereby can effectually improve the practicality of device.

Claims

1. A rotary circulating air preheating furnace is characterized in that: the hot air supply device comprises a hot air generating mechanism (1), wherein an automatic opening and closing mechanism (3) for avoiding hot air loss is arranged at the top of the hot air generating mechanism (1), and speed reducing motors (2) for providing power for the left and right movement of an inner sliding door (33) in the automatic opening and closing mechanism (3) are arranged on the left side and the right side of the automatic opening and closing mechanism (3);

hot-blast mechanism (1) of taking place includes thermal radiation reacting furnace (11), the inside of thermal radiation reacting furnace (11) is provided with a plurality of heating rods (14), the back intercommunication of thermal radiation reacting furnace (11) inner wall has fan (13), the bottom intercommunication of thermal radiation reacting furnace (11) inner wall has out tuber pipe (15), the top intercommunication of thermal radiation reacting furnace (11) has air-supply line (16), the top of air-supply line (16) is laminated with the bottom of automatic mechanism (3) that opens and shuts mutually.

2. A rotary circulating air preheating furnace according to claim 1, characterized in that: the hot air generating mechanism (1) further comprises a positioning ring (12), and a plurality of heating rods (14) are circumferentially arranged and fixed on the surface of the positioning ring (12).

3. A rotary circulating air preheating furnace according to claim 1, characterized in that: and a valve is arranged on the inner wall of the air outlet pipe (15).

4. A rotary circulating air preheating furnace according to claim 1, characterized in that: automatic mechanism (3) that opens and shuts includes locating rack (31), two the equal sliding connection in top of locating rack (31) has sliding door (33), two ventilation hole (34) have all been seted up to one side that sliding door (33) are relative.

5. A rotary circulating air preheating furnace according to claim 1, characterized in that: two equal fixedly connected with screw thread holding ring (7) in top of sliding door (33), two screw thread holding ring (7) all rotate to one side back of the body and are connected with screw thread dwang (5), and two screw thread dwang (5) to one section back of the body all with adjacent gear motor (2) link to each other.

6. A rotary circulating air preheating furnace according to claim 1, characterized in that: the top fixedly connected with support frame (4) of heat radiation reacting furnace (11), the inside of support frame (4) is provided with gyration and supports (6), the top of gyration support (6) is laminated with the bottom of automatic mechanism (3) that opens and shuts.

7. A rotary circulation air preheating furnace according to claim 1, wherein: and a connecting toothed ring (8) is arranged at the top of the automatic opening and closing mechanism (3).