CN218936372U

CN218936372U - Boiler tail gas waste heat utilization device

Info

Publication number: CN218936372U
Application number: CN202223497447.3U
Authority: CN
Inventors: 任江鱼; 蒋威
Original assignee: Fujian Shanke New Energy Development Co ltd
Current assignee: Fujian Shanke New Energy Development Co ltd
Priority date: 2022-12-27
Filing date: 2022-12-27
Publication date: 2023-04-28
Anticipated expiration: 2032-12-27

Abstract

The utility model discloses a boiler tail gas waste heat utilization device, which relates to the technical field of boiler waste heat utilization and comprises a boiler, wherein a bottom plate is arranged below the boiler, a slag discharging mechanism is arranged on one side of the boiler, a heating mechanism is arranged on the other side of the boiler, the slag discharging mechanism comprises a feed inlet, sliding blocks and discharging scrapers, the feed inlet is formed in the top of the boiler, the sliding blocks are arranged in the boiler, two sliding blocks are arranged, the discharging scrapers are arranged below the sliding blocks, the bottom of each discharging scraper is in contact with the inner wall of one side of the boiler, and the heating mechanism comprises a connecting pipe, an air outlet nozzle and a heating box. According to the utility model, the two sliding blocks are driven to be far away from each other by the starting motor, the sliding blocks drive the discharging scraping plates on the connecting strips to move, and the discharging scraping plates push ash out of the boiler through the discharging holes, so that the boiler has the advantage of convenience in ash treatment.

Description

Boiler tail gas waste heat utilization device

Technical Field

The utility model relates to the technical field of boiler waste heat utilization, in particular to a boiler tail gas waste heat utilization device.

Background

The boiler is an energy conversion device, the energy input to the boiler is chemical energy and electric energy in fuel, the boiler outputs steam, high temperature or organic heat carrier with certain heat energy, the fuel burns to continuously release heat in the combustion device part, the high temperature flue gas generated by the combustion transmits the heat to the heating surface of the boiler through heat transmission, the temperature of the flue gas is reduced, and finally the flue gas is discharged from a chimney. After the boiler is used, a large amount of high-temperature tail gas can be generated, a large amount of heat energy exists in the tail gas, the waste heat resource which can be recycled is about 60% of the total waste heat resource, and the waste heat recycling is an important way for improving economy and saving fuel.

For example, china patent publication No. CN209279377U discloses a boiler tail gas waste heat utilization device, and particularly relates to the field of boiler waste heat utilization equipment. The utility model comprises a supporting frame, a conveying device, a boiler and a first air duct, wherein the first heat energy utilization device and the first air duct are connected with one end of a heating pipe, a heat radiation cover is arranged below the heating pipe, the other end of the heating pipe is connected with a second air duct, the second air duct passes through the second heat energy utilization device, and the air outlet end of the second air duct is connected with a circulating pump. The utility model overcomes the defect that the energy loss is easily caused by the fact that the waste heat generated by the tail gas of the boiler is not utilized in the prior art. According to the utility model, hot air in the boiler is introduced into the heating pipe through the air duct, heat is transferred to the whole first heat energy utilization device through the heating pipe and the heat dissipation cover arranged below the heating pipe, then the air is transferred again through the second air duct, and is transferred to the second heat energy utilization device, and the effect of utilizing tail gas of the boiler is achieved through secondary and cyclic utilization of the air.

However, the above-mentioned device has disadvantages in that ash generated during combustion of the boiler is troublesome to discharge, and harmful substances are contained in tail gas generated during combustion of the boiler, so that the material to be heated is easily polluted if the tail gas is not filtered.

Disclosure of Invention

The utility model provides a boiler tail gas waste heat utilization device for solving the problems in the background technology.

In order to solve the technical problems, the utility model adopts the following technical scheme:

the utility model provides a boiler tail gas waste heat utilization device, includes the boiler, the below of boiler is provided with the bottom plate, one side of boiler is provided with slag discharging mechanism, the opposite side of boiler is provided with heating mechanism, slag discharging mechanism is including feed inlet, slider and ejection of compact scraper blade, the top at the boiler is seted up to the feed inlet, the slider sets up in the inside of boiler, the slider has two, ejection of compact scraper blade sets up in the below of slider, the bottom of ejection of compact scraper blade contacts with one side inner wall of boiler, heating mechanism is including connecting pipe, air outlet mouth and heating cabinet, connecting pipe fixed mounting is on the inner wall of boiler, the one end of connecting pipe is linked together with the inside of boiler, air outlet mouth fixed mounting is on the other end of connecting pipe, the heating cabinet sets up in the top of bottom plate, the inner wall of heating cabinet and the outer wall fixed connection of connecting pipe.

The technical scheme of the utility model is further improved as follows: the bottom of slider fixed mounting has the connecting strip, the bottom of connecting strip and the top fixed connection of ejection of compact scraper blade, the inner wall fixed mounting of boiler has the guide bar, the outer wall of guide bar and the inner wall swing joint of slider.

The technical scheme of the utility model is further improved as follows: the two side outer walls of the boiler are provided with discharge holes, the inside of the discharge holes is provided with sealing plugs, the outer wall of one side of the boiler is fixedly provided with a supporting plate, the top of the supporting plate is fixedly provided with a motor, the output shaft of the motor is fixedly provided with a bidirectional threaded rod, the outer wall of the bidirectional threaded rod is movably connected with the inner wall of the boiler, and the inner wall of the sliding block is movably connected with the outer wall of the bidirectional threaded rod.

The technical scheme of the utility model is further improved as follows: the top of heated board is provided with the removal frame, the inner wall fixed mounting of removal frame has the filter screen, fixed mounting has the pull rod on the outer wall of one side of removal frame, the export has been seted up on the outer wall of one side of heating cabinet.

The technical scheme of the utility model is further improved as follows: the inner wall fixed mounting of heating cabinet has the internal thread sleeve, the telescopic inner wall movable mounting of internal thread has the threaded rod, the top fixed mounting of threaded rod has the knob, the bottom movable mounting of threaded rod has the fixture block.

The technical scheme of the utility model is further improved as follows: the top fixed mounting of movable frame has the piece of accepting, the outer wall of fixture block and the inner wall swing joint of accepting the piece, the top fixed mounting of fixture block has the gag lever post, the outer wall of gag lever post and the inner wall swing joint of heating cabinet.

By adopting the technical scheme, compared with the prior art, the utility model has the following technical progress:

1. the utility model provides a boiler tail gas waste heat utilization device, which is characterized in that under the interaction of a feed inlet, sliding blocks, a discharge scraping plate, a connecting strip, a guide rod, a motor, a bidirectional threaded rod and a discharge outlet, the two sliding blocks are driven by the bidirectional threaded rod to be mutually far away by starting the motor, the sliding blocks drive the discharge scraping plate on the connecting strip to move, and the discharge scraping plate pushes ash out of a boiler through the discharge outlet, so that the boiler tail gas waste heat utilization device has the advantage of being convenient for ash disposal.

2. The utility model provides a boiler tail gas waste heat utilization device, which is characterized in that under the interaction of a connecting pipe, an air outlet nozzle, a heating box, a valve, a heat preservation plate, a filter screen, an internal thread sleeve, a threaded rod, a clamping block and a bearing block, tail gas burnt by a boiler is conveyed into the air outlet nozzle through the arranged connecting pipe, the air outlet nozzle inputs the tail gas into the heating box, the filter screen in the moving frame can filter the tail gas sprayed out of the air outlet nozzle, the heat preservation effect of the heating box can be enhanced by the arranged heat preservation plate, materials below the heat preservation plate can be heated conveniently, and the device has the advantage of conveniently utilizing waste heat.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic cross-sectional view of the structural slag tapping mechanism of the present utility model;

FIG. 3 is a schematic cross-sectional view of a structural heating mechanism of the present utility model;

fig. 4 is an enlarged schematic view of the structure a portion of the present utility model.

In the figure: 1. a boiler; 2. a bottom plate; 3. a slag discharging mechanism; 31. a feed inlet; 32. a slide block; 33. a discharging scraper; 34. a connecting strip; 35. a guide rod; 36. a motor; 37. a two-way threaded rod; 4. a heating mechanism; 41. a connecting pipe; 42. an air outlet nozzle; 43. a heating box; 44. a valve; 45. a thermal insulation board; 46. a filter screen; 47. an internally threaded sleeve; 48. a threaded rod; 481. a clamping block; 49. and a bearing block.

Detailed Description

The utility model is further illustrated by the following examples:

example 1

As shown in fig. 1-4, the utility model provides a boiler tail gas waste heat utilization device, which comprises a boiler 1, a bottom plate 2 is arranged below the boiler 1, a slag discharging mechanism 3 is arranged on one side of the boiler 1, a heating mechanism 4 is arranged on the other side of the boiler 1, the slag discharging mechanism 3 comprises a feed port 31, a sliding block 32 and a discharging scraper 33, the feed port 31 is arranged at the top of the boiler 1, the sliding block 32 is arranged in the boiler 1, the sliding block 32 is two, the discharging scraper 33 is arranged below the sliding block 32, the bottom of the discharging scraper 33 is in contact with the inner wall of one side of the boiler 1, a connecting strip 34 is fixedly arranged at the bottom of the sliding block 32, the bottom of the connecting strip 34 is fixedly connected with the top of the discharging scraper 33, a guide rod 35 is fixedly arranged on the inner wall of the boiler 1, a sealing plug is arranged on the outer wall of one side of the boiler 1, a supporting plate is fixedly arranged at the top of the supporting plate, a motor 36 is fixedly arranged on the output shaft of the motor 36, a bidirectional threaded rod 37 is fixedly arranged on the outer wall of the sealing plug 37 and the inner wall of the boiler 1 is movably connected with the inner wall of the sliding rod 37.

In this embodiment, make things convenient for oxygen and fuel to get into boiler 1 through the feed inlet 31 that sets up to burn in, after the burning is accomplished, take out the sealing plug in the discharge gate, starter motor 36 drives bi-directional threaded rod 37 and rotates, bi-directional threaded rod 37 drives two sliders 32 and keeps away from each other, slider 32 drives the ejection of compact scraper blade 33 on connecting strip 34 and removes, ejection of compact scraper blade 33 passes through the discharge gate and releases the ashes out boiler 1, guide bar 35 that sets up can avoid slider 32 to follow bi-directional threaded rod 37 rotation.

Example 2

As shown in fig. 1-4, on the basis of embodiment 1, the present utility model provides a technical solution: preferably, the heating mechanism 4 comprises a connecting pipe 41, an air outlet nozzle 42 and a heating box 43, wherein the connecting pipe 41 is fixedly arranged on the inner wall of the boiler 1, one end of the connecting pipe 41 is communicated with the inside of the boiler 1, the air outlet nozzle 42 is fixedly arranged on the other end of the connecting pipe 41, the heating box 43 is arranged above the bottom plate 2, the inner wall of the heating box 43 is fixedly connected with the outer wall of the connecting pipe 41, a valve 44 is fixedly arranged at the top of the bottom plate 2, a water outlet hole is formed in the outer wall of one side of the heating box 43, the water outlet hole is fixedly connected with the water inlet pipe of the valve 44, a heat insulation plate 45 is fixedly arranged on the inner wall of the heating box 43, a movable frame is arranged at the top of the heat insulation plate 45, and a filter screen 46 is fixedly arranged on the inner wall of the movable frame.

In this embodiment, the exhaust gas of boiler combustion is conveyed to the air outlet nozzle 42 through the connecting pipe 41, the air outlet nozzle 42 inputs the exhaust gas into the heating box 43, the filter screen 46 in the moving frame can filter the exhaust gas sprayed out of the air outlet nozzle 42, the heat preservation effect of the heating box 43 can be enhanced through the heat preservation plate 45, and materials below the heat preservation plate are heated conveniently.

Example 3

As shown in fig. 1-4, on the basis of embodiment 1, the present utility model provides a technical solution: preferably, a pull rod is fixedly installed on the outer wall of one side of the moving frame, an outlet is formed on the outer wall of one side of the heating box 43, an inner thread sleeve 47 is fixedly installed on the inner wall of the heating box 43, a threaded rod 48 is movably installed on the inner wall of the inner thread sleeve 47, a knob is fixedly installed on the top end of the threaded rod 48, a clamping block 481 is movably installed at the bottom end of the threaded rod 48, a bearing block 49 is fixedly installed at the top of the moving frame, the outer wall of the clamping block 481 is movably connected with the inner wall of the bearing block 49, a limit rod is fixedly installed at the top of the clamping block 481, and the outer wall of the limit rod is movably connected with the inner wall of the heating box 43.

In this embodiment, when the filter screen 46 needs to be replaced after long-term use, the rotation knob drives the threaded rod 48 to rotate, the threaded rod 48 moves upwards under the action of the internal thread sleeve 47, the threaded rod 48 drives the clamping block 481 to move upwards, the clamping of the connecting frame on the receiving block 49 is canceled, and at the moment, the pull rod can be pulled to drive the filter screen 46 in the connecting frame to move out of the heating box 43, so that the filter screen 46 is cleaned or replaced.

The working principle of the boiler tail gas waste heat utilization device is specifically described below.

As shown in fig. 1-4, make things convenient for oxygen and fuel to get into boiler 1 through the feed inlet 31 that sets up to burn in, after the burning is accomplished, take out the sealing plug in the discharge gate, starter motor 36 drives two threaded rods 37 and rotates, two sliders 32 keep away from each other, slider 32 drives the ejection of compact scraper blade 33 on connecting strip 34 and removes, ejection of compact scraper blade 33 passes through the discharge gate and releases the ashes out boiler 1, guide bar 35 that sets up can avoid slider 32 to follow the rotation of threaded rod 37 in two ways, have the advantage of conveniently handling ashes, carry the exhaust of boiler burning in the air outlet cock 42 through the connecting pipe 41 that sets up, air outlet cock 42 again with the exhaust input in heating cabinet 43, the filter screen 46 in the movable frame can filter the exhaust of air outlet 42, the heat preservation effect of heating cabinet 43 can be strengthened to the heated board 45 that sets up, conveniently heat the material to the heated board below, when filter screen 46 needs to be changed after long-term use, rotate knob 48 and drive threaded rod 48 and push up under the effect of threaded rod 47, 48 drive the fixture block and upwards move, take the card frame to take over the connecting frame on 49, can pull the filter screen 46 and change in the filter screen 46 from the interior of the movable frame 43, thereby have the advantage of conveniently cleaning.

The foregoing utility model has been generally described in great detail, but it will be apparent to those skilled in the art that modifications and improvements can be made thereto. Accordingly, it is intended to cover modifications or improvements within the spirit of the inventive concepts.

Claims

1. The utility model provides a boiler tail gas waste heat utilization device, includes boiler (1), the below of boiler (1) is provided with bottom plate (2), its characterized in that: one side of boiler (1) is provided with slag mechanism (3), the opposite side of boiler (1) is provided with heating mechanism (4), slag mechanism (3) are including feed inlet (31), slider (32) and ejection of compact scraper blade (33), the top at boiler (1) is seted up to feed inlet (31), slider (32) set up in the inside of boiler (1), slider (32) have two, ejection of compact scraper blade (33) set up in the below of slider (32), the bottom of ejection of compact scraper blade (33) is contacted with one side inner wall of boiler (1), heating mechanism (4) are including connecting pipe (41), mouth (42) and heating cabinet (43) give vent to anger, connecting pipe (41) fixed mounting is on the inner wall of boiler (1), the one end of connecting pipe (41) is linked together with the inside of boiler (1), mouth (42) fixed mounting is on the other end of connecting pipe (41), heating cabinet (43) set up in the top of bottom plate (2), the inner wall (43) and connecting pipe (41) are connected fixedly.

2. The boiler tail gas waste heat utilization device according to claim 1, wherein: the bottom fixed mounting of slider (32) has connecting strip (34), the bottom of connecting strip (34) and the top fixed connection of ejection of compact scraper blade (33), the inner wall fixed mounting of boiler (1) has guide bar (35), the outer wall of guide bar (35) and the inner wall swing joint of slider (32).

3. The boiler tail gas waste heat utilization device according to claim 1, wherein: the utility model discloses a boiler, including boiler (1) and two-way threaded rod (37), the discharge gate has all been seted up on the both sides outer wall of boiler (1), the inside of discharge gate is provided with the sealing plug, fixed mounting has the backup pad on the outer wall of one side of boiler (1), the top fixed mounting of backup pad has motor (36), fixed mounting has two-way threaded rod (37) on the output shaft of motor (36), the outer wall of two-way threaded rod (37) and the inner wall swing joint of boiler (1), the inner wall and the outer wall swing joint of two-way threaded rod (37) of slider (32).

4. The boiler tail gas waste heat utilization device according to claim 1, wherein: the top of bottom plate (2) fixed mounting has valve (44), set up the apopore on the outer wall of one side of heating cabinet (43), the inlet tube fixed connection of apopore and valve (44), the inner wall fixed mounting of heating cabinet (43) has heated board (45).

5. The boiler tail gas waste heat utilization device according to claim 4, wherein: the top of heated board (45) is provided with the removal frame, the inner wall fixed mounting of removing the frame has filter screen (46), fixed mounting has the pull rod on the outer wall of one side of removal frame, the export has been seted up on the outer wall of one side of heating cabinet (43).

6. The boiler tail gas waste heat utilization device according to claim 5, wherein: the inner wall fixed mounting of heating cabinet (43) has internal thread sleeve (47), the inner wall movable mounting of internal thread sleeve (47) has threaded rod (48), the top fixed mounting of threaded rod (48) has the knob, the bottom movable mounting of threaded rod (48) has fixture block (481).

7. The boiler tail gas waste heat utilization device according to claim 6, wherein: the top of the movable frame is fixedly provided with a bearing block (49), the outer wall of the clamping block (481) is movably connected with the inner wall of the bearing block (49), the top of the clamping block (481) is fixedly provided with a limiting rod, and the outer wall of the limiting rod is movably connected with the inner wall of the heating box (43).