CN219244290U

CN219244290U - Kiln flue gas waste heat recovery device

Info

Publication number: CN219244290U
Application number: CN202222542029.5U
Authority: CN
Inventors: 王昌炳
Original assignee: Anhui Huantai Technology Co ltd
Current assignee: Anhui Huantai Technology Co ltd
Priority date: 2022-09-26
Filing date: 2022-09-26
Publication date: 2023-06-23
Anticipated expiration: 2032-09-26

Abstract

The utility model discloses a kiln flue gas waste heat recovery device which comprises a heat recovery bin with a flue gas inlet pipe and a flue gas exhaust pipe, wherein a poking plate and a heat collecting pipe are respectively arranged on two sides of the interior of the heat recovery bin, one side of the poking plate is hinged with the inner side wall of the heat recovery bin, a filter screen is also arranged in the heat recovery bin and positioned below the poking plate and the heat collecting pipe, the flue gas inlet pipe is positioned below the flue gas exhaust pipe, an electric shaft rod is arranged in the flue gas inlet pipe, an impeller is arranged at the bottom of the electric shaft rod, a hairbrush is fixedly connected to the electric shaft rod, and the top of the hairbrush is contacted with the bottom surface of the filter screen. According to the utility model, through the rotation of the electric shaft rod, the impeller is driven to rotate to accelerate the entry of smoke, the hairbrush can be driven to timely clean dust attached to the filter screen, and meanwhile, the stirring plate can be turned back and forth in the heat recovery bin, so that heat on the smoke is concentrated at the heat collecting pipe, and the waste heat recovery efficiency is improved.

Description

Kiln flue gas waste heat recovery device

Technical Field

The utility model relates to the technical field of heat energy recycling, in particular to a kiln flue gas waste heat recycling device.

Background

In the process of sintering materials in a kiln, a great amount of heat energy is carried by flue gas generated in the kiln and discharged to the atmosphere, so that energy is wasted greatly, and heat in the flue gas is required to be recovered for use.

The prior patent publication number is: CN212538898U, the name of this patent is a kiln flue gas waste heat recovery and recycling device, including the waste heat recovery storehouse, the storehouse of discharging fume is installed at the top of waste heat recovery storehouse, and the exhaust port has been seted up on the top of storehouse of discharging fume, and advance the cigarette storehouse is installed to the bottom of waste heat recovery storehouse, advances the bottom of cigarette storehouse and has seted up into the cigarette mouth, and the inside of waste heat recovery storehouse is provided with a water pipe from bottom to top snakelike, and the top of water pipe runs through from the upper portion outer wall of waste heat recovery storehouse and stretches out, and the bottom of water pipe runs through from the lower part outer wall of waste heat recovery storehouse and stretches out. In this kiln flue gas waste heat recycling device, high temperature flue gas heats the cold water in the water pipe behind the water pipe for the temperature rises, and the hot water is discharged to the external world from the top of water pipe, is convenient for use, and the low temperature flue gas is through impurity clearance mechanism's purification, makes its impurity that contains clear away the back, discharges from the exhaust port at top.

In the prior art, after long-time emission, a large amount of dust mixed in the flue gas can block holes on the hollowed-out shell, so that the flue gas cannot quickly contact with the surface of the water pipe, and the waste heat recovery efficiency is affected.

Disclosure of Invention

The utility model aims to provide a kiln flue gas waste heat recovery device which aims to solve the defects in the prior art.

In order to achieve the above purpose, the present utility model adopts the following technical scheme: the utility model provides a kiln flue gas waste heat recovery device, includes the heat recovery storehouse that has the tobacco pipe of advance and exhaust the tobacco pipe, stir board and heat collecting pipe are installed respectively to the inside both sides of heat recovery storehouse, stir board one side and heat recovery storehouse inside wall and articulate mutually, still install the filter screen in the heat recovery storehouse, it is located stir board and heat collecting pipe below, advance the below that the tobacco pipe is located the tobacco pipe of discharging, and advance and install electric shaft pole in the tobacco pipe, the impeller is installed to electric shaft pole bottom, fixedly connected with brush on the electric shaft pole, the top and the filter screen bottom surface of brush contact, electric shaft pole top is passed the filter screen and is installed the drive frame, the drive frame articulates with bottom one side of stirring the board has the connecting rod.

Preferably, the interior fixedly connected with support of advance the tobacco pipe, electric shaft rod passes through the vertical axle center position of installing in advancing the tobacco pipe of support.

Preferably, the heat collecting tube is spiral, and two ends of the heat collecting tube respectively penetrate through the heat recovery bin and are provided with a liquid inlet pipe orifice and a liquid outlet pipe orifice.

Preferably, the height of the liquid inlet pipe orifice is lower than that of the liquid outlet pipe orifice.

Preferably, the stirring plate is arc-shaped, and one surface of the stirring plate, which is close to the heat collecting tube, is a concave part.

Preferably, the inner diameter of the smoke exhaust pipe is smaller than the inner diameter of the smoke inlet pipe.

The utility model provides a kiln flue gas waste heat recovery device. The beneficial effects are as follows:

this kiln flue gas waste heat recovery device through the rotation of electronic axostylus axostyle, both drives impeller rotation and accelerates the entering of flue gas, can drive the brush in time to clear up the dust that adheres to on the filter screen again, simultaneously, transmission frame and electronic axostylus axostyle rotate in step, can pull the connecting rod through the transmission frame and drive stir the board and turn around in heat recovery storehouse inside for heat on the flue gas is concentrated in heat-collecting tube department fast, promotes waste heat recovery's efficiency.

Drawings

Fig. 1 is a schematic structural diagram of a flue gas waste heat recovery device for a kiln provided by the utility model;

fig. 2 is a schematic structural diagram of a flue gas waste heat recovery device for a kiln provided by the utility model;

FIG. 3 is a cross-sectional view of a flue gas waste heat recovery device for a kiln provided by the utility model;

fig. 4 is a schematic transmission diagram of a toggle plate and an electric shaft rod in the kiln flue gas waste heat recovery device.

Legend description:

1. a heat recovery bin; 101. a smoke inlet pipe; 102. a smoke exhaust pipe; 103. a bracket; 2. a toggle plate; 3. a heat collecting pipe; 301. a liquid inlet pipe orifice; 302. a liquid outlet pipe orifice; 4. a filter screen; 5. an electric shaft lever; 501. an impeller; 502. a brush; 6. a transmission frame; 601. and a connecting rod.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

Referring to figures 1-4, a kiln flue gas waste heat recovery device comprises a heat recovery bin 1 with a flue gas inlet pipe 101 and a flue gas exhaust pipe 102, wherein the flue gas inlet pipe 101 is positioned below the flue gas exhaust pipe 102, flue gas enters the heat recovery bin 1 from the flue gas inlet pipe 101 at the bottom and is exhausted from the flue gas exhaust pipe 102 at the top, a stirring plate 2 and a heat collecting pipe 3 are respectively arranged at two sides in the heat recovery bin 1, one side of the stirring plate 2 is hinged with the inner side wall of the heat recovery bin 1, a filter screen 4 is also arranged in the heat recovery bin 1 and positioned below the stirring plate 2 and the heat collecting pipe 3, impurities and dust particles doped in the flue gas are filtered in advance, the dust is prevented from adhering to the heat collecting pipe 3 to influence the heat absorbing capacity of the heat collecting pipe 3, an electric shaft 5 is arranged in the flue gas inlet pipe 101, a motor for driving the shaft to rotate is arranged in the electric shaft 5, the motor can drive whole electric shaft pole 5 and rotate, impeller 501 is installed to electric shaft pole 5 bottom, fixedly connected with brush 502 on the electric shaft pole 5, the top of brush 502 contacts with filter screen 4 bottom surface, when electric shaft pole 5 rotates, both drive impeller 501 and rotate the entering that quickens the flue gas, can drive brush 502 in time clear up again and fall the dust that adheres to on the filter screen 4, guarantee filterable effect, avoid the filtration pore to block up, electric shaft pole 5 top is passed filter screen 4 and is installed drive frame 6, drive frame 6 and electric shaft pole 5 synchronous rotation, drive frame 6 articulates with one side of the bottom of stirring board 2 has connecting rod 601, drive stirring board 2 is in the inside back and forth of heat recovery storehouse 1 through drive frame 6 traction connection rod 601, make the heat on the flue gas concentrate in heat collecting tube 3 department, promote waste heat recovery's efficiency.

In a further technical scheme of the utility model, the bracket 103 is fixedly connected in the smoke inlet pipe 101, the electric shaft lever 5 is vertically arranged at the axial center position of the smoke inlet pipe 101 through the bracket 103, and the electric shaft lever 5 is fixed in the smoke inlet pipe 101 through the bracket 103, so that the stability of the electric shaft lever 5 is improved.

In a further technical scheme of the utility model, the heat collecting pipe 3 is in a spiral shape, two ends of the heat collecting pipe 3 respectively penetrate through the heat recovery bin 1 and are provided with the liquid inlet pipe orifice 301 and the liquid outlet pipe orifice 302, the spiral heat collecting pipe 3 can be heated more fully, the temperature rise of internal water is accelerated, the liquid inlet pipe orifice 301 is used for injecting cold water, the cold water is changed into hot water after passing through the whole heat collecting pipe 3, and the hot water is discharged from the liquid outlet pipe orifice 302, and hot water generated by waste heat recovery is reused, so that energy consumption is reduced, and energy is saved.

In a further technical scheme of the utility model, the height of the liquid inlet pipe orifice 301 is lower than that of the liquid outlet pipe orifice 302, so that cold water can gradually rise in the heat recovery bin 1 to fully absorb heat.

In a further technical scheme of the utility model, the poking plate 2 is arc-shaped, and one surface of the poking plate 2 close to the heat collecting pipe 3 is a concave part, so that wind blown by the poking plate 2 in a flip-back and-forth way is more concentrated at the position of the heat collecting pipe 3, and the heat collecting effect is improved.

In a further technical scheme of the utility model, the inner diameter of the smoke exhaust pipe 101 is smaller than the inner diameter of the smoke inlet pipe 102, so that part of smoke stays in the heat recovery bin 1 for a short time, and the waste heat in the smoke is fully utilized.

When in use, the smoke inlet pipe 101 at the bottom of the heat recovery bin 1 is arranged and butted on a smoke outlet pipeline of a kiln, the smoke inlet pipe 101 is positioned below the smoke exhaust pipe 102, smoke enters the heat recovery bin 1 from the smoke inlet pipe 101 at the bottom and then sequentially passes through the filter screen 4 and the heat collecting pipe 3 and is exhausted from the smoke exhaust pipe 102 at the top, so that the smoke is exhausted from bottom to top, the filter screen 4 is positioned below the heat collecting pipe 3, impurities and dust particles doped in the smoke can be filtered in advance, a large amount of dust is prevented from adhering to the heat collecting pipe 3 to influence the heat absorbing capacity of the heat collecting pipe 3, when the electric shaft rod 5 in the smoke inlet pipe 101 rotates, the impeller 501 is driven to rotate to accelerate the entry of the smoke, the brush 502 is driven to timely clean dust adhered to the filter screen 4, avoid the filtration pore to block up, guarantee filterable effect, and drive frame 6 and electronic axostylus axostyle 5 synchronous rotation, it has connecting rod 601 to articulate between drive frame 6 and the toggle plate 2, pull connecting rod 601 through drive frame 6 and drive toggle plate 2 and make a round trip to turn in heat recovery storehouse 1 inside, make the flue gas heat in the heat recovery storehouse 1 concentrate in heat collecting tube 3 departments, promote waste heat recovery's efficiency, helical heat collecting tube 3 can be more abundant be heated, accelerate the intensification of inside water, liquid inlet pipe orifice 301 is used for injecting cold water, cold water becomes hot water and discharges from liquid outlet pipe orifice 302 after whole heat collecting tube 3 is heated, the hot water that the follow-up waste heat recovery produced that can use, the energy consumption is reduced, the energy saving.

In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims

1. The utility model provides a kiln flue gas waste heat recovery device, includes heat recovery storehouse (1) that have advance tobacco pipe (101) and exhaust fume pipe (102), its characterized in that:

the heat recovery bin (1) is internally provided with a stirring plate (2) and a heat collecting pipe (3) at two sides respectively, one side of the stirring plate (2) is hinged with the inner side wall of the heat recovery bin (1), and the heat recovery bin (1) is internally provided with a filter screen (4) which is positioned below the stirring plate (2) and the heat collecting pipe (3);

the smoke inlet pipe (101) is positioned below the smoke outlet pipe (102), an electric shaft rod (5) is arranged in the smoke inlet pipe (101), an impeller (501) is arranged at the bottom of the electric shaft rod (5), a hairbrush (502) is fixedly connected to the electric shaft rod (5), and the top of the hairbrush (502) is in contact with the bottom surface of the filter screen (4);

the top of the electric shaft lever (5) penetrates through the filter screen (4) and is provided with a transmission frame (6), and the transmission frame (6) is hinged with one side of the bottom of the poking plate (2) through a connecting rod (601).

2. The kiln flue gas waste heat recovery device according to claim 1, wherein a bracket (103) is fixedly connected in the flue gas inlet pipe (101), and the electric shaft lever (5) is vertically arranged at the axis position of the flue gas inlet pipe (101) through the bracket (103).

3. The kiln flue gas waste heat recovery device according to claim 1, wherein the heat collecting tube (3) is spiral, and two ends of the heat collecting tube (3) respectively penetrate through the heat recovery bin (1) and are provided with a liquid inlet tube orifice (301) and a liquid outlet tube orifice (302).

4. A kiln flue gas waste heat recovery device according to claim 3, wherein the height of the liquid inlet nozzle (301) is lower than the height of the liquid outlet nozzle (302).

5. The kiln flue gas waste heat recovery device according to claim 1, wherein the poking plate (2) is arc-shaped, and one surface of the poking plate (2) close to the heat collecting pipe (3) is a concave part.

6. A kiln flue gas waste heat recovery device according to claim 1, wherein the inner diameter of the flue gas exhaust pipe (102) is smaller than the inner diameter of the flue gas inlet pipe (101).