CN213019726U

CN213019726U - Pulverized coal fired boiler adjacent boiler hot air energy-saving device

Info

Publication number: CN213019726U
Application number: CN202022028013.3U
Authority: CN
Inventors: 王磊
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-09-16
Filing date: 2020-09-16
Publication date: 2021-04-20
Anticipated expiration: 2030-09-16

Abstract

The utility model discloses a hot-blast economizer of pulverized coal boiler adjacent furnace, including the hot-blast economizer body, the hot-blast economizer body includes two female tuber pipes, and one side that two female tuber pipes are close to each other all feeds through and is fixed with the contact wind channel, and the one end intercommunication that two contact wind channels are close to each other is fixed with same three-way pipe, the top intercommunication of three-way pipe is fixed with adjusting valve, and adjusting valve's air intake intercommunication is fixed with the standpipe. The utility model relates to a rationally, can filter the impurity in the wind that gets into and shelter from, reduce adjusting valve's jam risk, be convenient for drive the dust screen and be in and last vibrations about and rotation state, the slope of cooperation dust screen sets up the mode, can be effectively be stained with the left side of dust screen and attach accumulational dust granule and shake downwards and fall, alleviate the dust and be stained with and attach blocking phenomenon, can improve ventilation efficiency, and can take off the dust screen and thoroughly clear up or change, satisfy the user demand.

Description

Pulverized coal fired boiler adjacent boiler hot air energy-saving device

Technical Field

The utility model relates to an adjacent stove hot-blast energy-saving equipment technical field especially relates to an adjacent stove hot-blast energy-saving device of pulverized coal fired boiler.

Background

In the design of a smoke and air system of a coal-fired boiler, a hot primary air system is generally adopted, hot primary air can carry fire coal to be fed into a hearth, so that the combustion of the fire coal in the hearth can be better organized, when a plurality of boilers are arranged in parallel, the smoke and air system of a single boiler and other systems of the boiler form an independent system, the smoke and air systems of the boilers are not related, each boiler is respectively controlled in a control mode of each boiler and is not related to other boilers, when the boilers are started, smoke and air equipment, coal-fired equipment and the like of the boilers need to be preheated by a large amount of energy, the temperature of pipelines of the equipment is heated from normal temperature to 100-300 ℃ required by hot-state operation, and the application number is obtained through retrieval: 201920009392.6, discloses a pulverized coal boiler adjacent furnace hot air energy-saving device, wherein primary main air pipes of a plurality of pulverized coal boilers are communicated in sequence through a communication air duct, two ends of the communication air duct between two adjacent pulverized coal boilers are respectively provided with a sealing valve, and an air volume adjusting valve is arranged between the two sealing valves; the primary main air pipes of the pulverized coal boilers are communicated with each other by using the communication air channels, and when the pulverized coal boilers are started from a cold state, the communication air channels can be used for conveying hot air of adjacent boilers to provide energy required by the starting of the boilers; when the boiler operates at low load, hot air of an adjacent boiler can be conveyed by using the connecting air duct, and a plurality of boilers share one boiler blower, so that the plant power consumption rate is reduced; or the mixing proportion of the hot primary air of one boiler is improved, the drying output of the coal mill is improved, and the boiler efficiency is improved; when the boiler is out of service, the hot air of the adjacent boiler can be conveyed by the connecting air channel, the condensed water on the heating surface is dried, the metal surface is kept dry, and the corrosion is avoided.

The utility model can realize that a plurality of boilers share one boiler blower through the communication air channel, reduce the service power consumption rate and achieve the purpose of energy saving, but the patent still has some defects, the outside air extracted by the blower is transmitted into the communication air channel, especially near the pulverized coal boiler, the outside air contains more impurities, if the outside air is directly discharged into the communication air channel, the impurities in the air easily block the adjusting valve, and further the normal entering of the air is influenced, although some devices can set a dust screen at the air inlet of the adjusting valve to achieve the purpose of dust prevention, the dust screen does not have the function of automatically vibrating dust, the dust screen is used for a long time, the dust is easily attached and accumulated on the dust screen, and the ventilation efficiency at the air inlet is reduced, the pulverized coal boiler adjacent furnace hot air energy-saving device is improved by combining the situations, and therefore the pulverized coal boiler adjacent furnace hot air energy-saving device is provided for solving the problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a pulverized coal boiler adjacent furnace hot air energy-saving device.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a hot air energy-saving device for adjacent boiler of pulverized coal fired boiler comprises a hot air energy-saving device body, wherein the hot air energy-saving device body comprises two main air pipes, one sides of the two main air pipes, which are close to each other, are communicated and fixed with communication air channels, one ends of the two communication air channels, which are close to each other, are communicated and fixed with a same three-way pipe, the top ends of the three-way pipes are communicated and fixed with an adjusting valve, an air inlet of the adjusting valve is communicated and fixed with a vertical pipe, the top end of the vertical pipe is arranged to be a blocking structure, the left side of the vertical pipe is provided with a rectangular pipe, the rectangular pipe is communicated with the vertical pipe, the rectangular pipe is fastened at the top of the left side of the vertical pipe in a threaded manner, a dust screen which is obliquely arranged is movably sleeved in the rectangular pipe, a first groove is arranged on the inner wall of the bottom of the rectangular pipe, the installation box and the rectangular block are fastened in a first groove in a threaded manner, an extrusion block is movably contacted with the top of the left side of the dustproof net, the bottom of the right side of the extrusion block is provided with an inclined plane matched with the dustproof net, a second groove is formed in the inner wall of the top of the rectangular pipe, a first locating rod is fixedly installed between the inner walls of the two sides of the second groove, the top of the extrusion block extends into the second groove, the extrusion block is sleeved on the first locating rod in a sliding manner, the same first spring is fixedly installed between the left side of the extrusion block and the inner wall of the left side of the second groove, the first spring is movably sleeved on the first locating rod, an L-shaped limiting block is fixedly installed on the inner wall of the top of the vertical pipe, the left side of the L-shaped limiting block extends into the rectangular pipe and is movably contacted with the top of the right side of the dustproof net, a driving motor is fixedly installed on the inner wall of, the T-shaped positioning rod is slidably sleeved with a clip-shaped frame, a second spring is fixedly arranged between the inner wall of the left side of the T-shaped positioning rod and the inner wall of the right side of the clip-shaped frame, the second spring is movably sleeved on the T-shaped positioning rod, the left side of the clip-shaped frame is set to be of an arc structure and matched with a dust screen, a moving block is fixedly arranged on one side of the top of the clip-shaped frame, a ball is embedded in the right side of the moving block, and the ball is in rolling contact with.

Preferably, the distance between the right side of the eccentric wheel and the right side of the output shaft of the driving motor is larger than the distance between the left side of the square frame and the left side of the dustproof net.

Preferably, the rectangular channel that the top set up for the opening is seted up in the left side of standpipe, the outside movable contact of the inner wall of rectangular channel and rectangular pipe, and one side bottom fixed mounting of rectangular pipe has first kelly, and the right-hand member of first kelly is established to the toper structure, and fixed mounting has the fixed block on the left side inner wall of standpipe, and fixed block movable sleeve is established on first kelly.

Preferably, the right side top fixed mounting of rectangular pipe has the second kelly, and the draw-in groove has been seted up at the left side top of standpipe, and in the right-hand member of second kelly extended to the draw-in groove, the second kelly clamped mutually with the draw-in groove, first thread groove had been seted up at the top of second kelly, and threaded bush is equipped with fastening bolt in the first thread groove, and fastening bolt's top extended to the top of standpipe, and the standpipe threaded bush is established on fastening bolt.

Preferably, a second thread groove is formed in the inner wall of the right side of the first groove, a T-shaped screw rod is sleeved in the second thread groove in a threaded manner, the left side of the T-shaped screw rod extends to the left side of the rectangular pipe, and the mounting box and the rectangular block are sleeved on the T-shaped screw rod in a threaded manner.

Preferably, a rectangular hole is formed in the inner wall of the right side of the square frame, and the inner wall of the rectangular hole is in sliding connection with the outer side of the T-shaped positioning rod.

Preferably, the inner wall of the right side of the vertical pipe is fixedly provided with an installation rod, and the top of the installation rod is fixedly connected with the bottom of the driving motor.

Compared with the prior art, the beneficial effects of the utility model are that:

through a main air pipe, a communication air duct, a regulating valve, a mounting box, a first groove, a three-way pipe, a rectangular block, a vertical pipe, a rectangular pipe, a fixed block, a dust screen, an extrusion block, a second groove, a first locating rod, a first spring, an L-shaped limiting block, a driving motor, an eccentric wheel, a clip frame, a T-shaped locating rod, a second spring and a movable block which are matched with a T-shaped screw rod, the dust screen filters impurities in the entering air and shields the impurities on the left side of the dust screen, when the dust screen needs to be cleaned by vibration, the driving motor is started in the forward direction to drive the eccentric wheel to rotate the front half circle, the balls are extruded, the extrusion force drives the movable block to move leftwards through the balls, the movable block drives the clip frame to move leftwards and compress the second spring, the clip frame collides with the dust screen leftwards, the dust screen vibrates and rotates leftwards, the extrusion block is extruded while the dust screen rotates, the extrusion force drives the extrusion block to slide leftwards on the first locating rod and compress the first spring, the extrusion force on the balls is gradually released when the eccentric wheel rotates for the latter half circle, at the moment, the elastic force of the second spring drives the clip frame to be separated from the dustproof net, at the moment, the elastic force of the first spring drives the extrusion block to move rightwards and extrudes the dustproof net to rotate and reset, under the continuous rotation of the eccentric wheel, the dustproof net can be driven to be in a continuous left-right vibration and rotation state, then the left side of the dustproof net can be effectively stained and adhered and accumulated dust particles to be shaken downwards by matching with the inclined arrangement mode of the dustproof net, the phenomenon of sticking and blocking is relieved, when the dustproof net needs to be taken down for complete cleaning or replacement, the fastening bolt is rotated forwards to be separated from the first thread groove, then the rectangular pipe is pulled leftwards to be taken down from the vertical pipe, then the T-shaped screw rod is rotated to be gradually taken out from the second, at the moment, the dustproof net rotates rightwards and is pulled upwards, so that the dustproof net moves the rectangular block to be taken out of the mounting box, and the dustproof net can be thoroughly cleaned or replaced.

The utility model relates to a rationally, can filter the impurity in the wind that gets into and shelter from, reduce adjusting valve's jam risk, be convenient for drive the dust screen and be in and last vibrations about and rotation state, the slope of cooperation dust screen sets up the mode, can be effectively be stained with the left side of dust screen and attach accumulational dust granule and shake downwards and fall, alleviate the dust and be stained with and attach blocking phenomenon, can improve ventilation efficiency, and can take off the dust screen and thoroughly clear up or change, satisfy the user demand.

Drawings

Fig. 1 is a schematic view of a partial cross-sectional structure of an adjacent boiler hot air energy-saving device of a pulverized coal boiler provided by the utility model;

FIG. 2 is an enlarged schematic view of portion A of FIG. 1;

fig. 3 is an enlarged schematic structural view of a portion B in fig. 2.

In the figure: 101 female tuber pipes, 102 contact wind channels, 103 regulating valve, 1 mounting box, 2 first grooves, 3 tee pipes, 4 rectangular blocks, 5 standpipe, 6 rectangular pipes, 7 fixed blocks, 8 dust screens, 9 extrusion blocks, 10 second grooves, 11 first locating rods, 12 first springs, 13L-shaped limiting blocks, 14 driving motors, 15 eccentric wheels, 16 clip frames, 17T-shaped locating rods, 18 second springs, 19 moving blocks and 20T-shaped screw rods.

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.

Referring to fig. 1-3, a pulverized coal boiler adjacent boiler hot air energy-saving device comprises a hot air energy-saving device body, the hot air energy-saving device body comprises two main air pipes 101, one sides of the two main air pipes 101, which are close to each other, are communicated and fixed with communicating air ducts 102, one ends of the two communicating air ducts 102, which are close to each other, are communicated and fixed with a same three-way pipe 3, the top end of the three-way pipe 3 is communicated and fixed with an adjusting valve 103, an air inlet of the adjusting valve 103 is communicated and fixed with a vertical pipe 5, the top end of the vertical pipe 5 is of a plugging structure, the left side of the vertical pipe 5 is provided with a rectangular pipe 6, the rectangular pipe 6 is communicated with the vertical pipe 5, the rectangular pipe 6 is fastened at the top of the left side of the vertical pipe 5 through threads, a dust screen 8 which is obliquely arranged is movably sleeved in the rectangular pipe 6, a first groove 2, which, a rectangular block 4 is movably sleeved in the mounting box 1, the bottom of the dustproof net 8 is hinged with the top of the rectangular block 4, the mounting box 1 and the rectangular block 4 are both fastened in a first groove 2 in a threaded manner, a squeezing block 9 is movably contacted with the top of the left side of the dustproof net 8, the bottom of the right side of the squeezing block 9 is provided with an inclined plane matched with the dustproof net 8, a second groove 10 is arranged on the inner wall of the top of the rectangular pipe 6, a first positioning rod 11 is fixedly arranged between the inner walls of the two sides of the second groove 10, the top of the squeezing block 9 extends into the second groove 10, the squeezing block 9 is slidably sleeved on the first positioning rod 11, a same first spring 12 is fixedly arranged between the left side of the squeezing block 9 and the inner wall of the left side of the second groove 10, the first spring 12 is movably sleeved on the first positioning rod 11, an L-shaped limiting block 13 is fixedly arranged on the inner wall of the top of the vertical pipe 5, the left side of the L-shaped limiting block 13 extends, the utility model relates to a vertical pipe 5, the fixed mounting has driving motor 14 on one side inner wall of standpipe 5, the fixed mounting has eccentric wheel 15 at the output shaft top of driving motor 14, the left side fixed mounting of driving motor 14 has T shape locating lever 17, it has time shape frame 16 to slide the cover on T shape locating lever 17, fixed mounting has second spring 18 between the left side inner wall of T shape locating lever 17 and the right side inner wall of time shape frame 16, second spring 18 movable sleeve is on T shape locating lever 17, the left side of time shape frame 16 is established to arc structure and is cooperateed with dust screen 8, the top one side fixed mounting of time shape frame 16 has movable block 19, the right side of movable block 19 is inlayed and is equipped with the ball, ball and the outside rolling contact of eccentric wheel 15, the utility model relates to rationally, can filter and shelter from the impurity in the wind that gets into, reduce the jam risk of adjusting valve 103, be, the slope of cooperation dust screen 8 sets up the mode, can be effectively be stained with the left side of dust screen 8 and attach accumulational dust granule and shake down downwards, alleviates the dust and is stained with and attaches blocking phenomenon, can improve ventilation efficiency, and can take off dust screen 8 and thoroughly clear up or change, satisfy the user demand.

In the utility model, the distance between the right side of the eccentric wheel 15 and the right side of the output shaft of the driving motor 14 is larger than the distance between the left side of the paper clip frame 16 and the left side of the dust screen 8, the left side of the vertical pipe 5 is provided with a rectangular groove with an opening at the top, the inner wall of the rectangular groove is in movable contact with the outer side of the rectangular pipe 6, the bottom of one side of the rectangular pipe 6 is fixedly provided with a first clamping rod, the right end of the first clamping rod is designed to be a conical structure, the inner wall of the left side of the vertical pipe 5 is fixedly provided with a fixed block 7, the fixed block 7 is movably sleeved on the first clamping rod, the top of the right side of the rectangular pipe 6 is fixedly provided with a second clamping rod, the top of the left side of the vertical pipe 5 is provided with a clamping groove, the right end of the second clamping rod extends into the clamping groove, the second clamping rod is clamped with the clamping groove, the top of the second, the vertical pipe 5 is sleeved on the fastening bolt in a threaded manner, the right inner wall of the first groove 2 is provided with a second threaded groove, the threaded sleeve of the second threaded groove is provided with a T-shaped screw rod 20, the left side of the T-shaped screw rod 20 extends to the left side of the rectangular pipe 6, the mounting box 1 and the rectangular block 4 are sleeved on the T-shaped screw rod 20 in a threaded manner, the right inner wall of the rectangular frame 16 is provided with a rectangular hole, the inner wall of the rectangular hole is in sliding connection with the outer side of the T-shaped positioning rod 17, the right inner wall of the vertical pipe 5 is fixedly provided with a mounting rod, the top of the mounting rod is fixedly connected with the bottom of the driving motor 14, the utility model has reasonable design, can filter and shield impurities in the entering wind, reduce the blocking risk of the regulating valve 103, is convenient for driving the dust screen 8 to be in a continuous left-right vibration and rotation state, and can effectively lead the left side of the dust, alleviate the dust and be stained with and attach blocking phenomenon, can improve ventilation efficiency, and can take off dust screen 8 and thoroughly clear up or change, satisfy the user demand.

The working principle is as follows: when the three-way pipe is used, wind passes through the dust screen 8 through the rectangular pipe 6 and enters the vertical pipe 5 and enters the three-way pipe 3 through the vertical pipe 5 and the regulating valve 103, the dust screen 8 filters impurities in the entering wind, and the filtered impurities are shielded on the left side of the dust screen 8, so that the risk of blockage caused by the impurities entering the regulating valve 103 is reduced;

when the dust screen 8 is used for a long time to cause the phenomenon that dust and impurities are accumulated to block the dust screen 8 and the dust screen 8 needs to be vibrated and cleaned, the driving motor 14 is started in the forward direction, the output shaft of the driving motor 14 drives the eccentric wheel 15 to rotate, the eccentric wheel 15 extrudes the balls when rotating the front half circle, the extruding force drives the balls to move leftwards and roll, the balls drive the moving block 19 to move leftwards, the moving block 19 drives the clip frame 16 to move leftwards, the clip frame 16 compresses the second spring 18 while moving leftwards, the clip frame 16 moves leftwards and gradually collides with the dust screen 8, under the action of the collision force, the dust screen 8 vibrates and rotates leftwards, the dust screen 8 extrudes the extrusion block 9 while rotating at the top of the rectangular block 4, the extruding force drives the extrusion block 9 to slide leftwards on the first positioning rod 11, the extrusion block 9 compresses the first spring 12 while moving, when the eccentric wheel 15 rotates for the second half turn, the extrusion force on the balls is gradually released, the second spring 18 in a compressed state is reset, the elastic force of the second spring 18 drives the clip frame 16 to gradually move rightwards, the clip frame 16 moves rightwards and is gradually separated from the dust screen 8, the first spring 12 in the compressed state is reset, the elastic force of the first spring 12 drives the extrusion block 9 to move rightwards on the first positioning rod 11 and extrude the dust screen 8 to rotate and reset, the dust screen 8 can be circularly collided under the continuous rotation of the eccentric wheel 15, the dust screen 8 can be driven to be in a continuous left-right vibration and rotation state, and the inclined arrangement mode of the dust screen 8 is matched, so that dust particles attached and accumulated on the left side of the dust screen 8 can be effectively shaken downwards, the attachment blocking phenomenon is relieved, and the frequency of disassembling and cleaning of workers can be effectively reduced;

when the dust screen 8 needs to be taken down for thorough cleaning or replacement, the fastening bolt is rotated in the forward direction, the fastening bolt rotates and is separated from the first thread groove, and further the fixation of the second clamping rod is removed, the rectangular pipe 6 is pulled leftwards, the rectangular pipe 6 moves leftwards and drives the dust screen 8 to move leftwards and be separated from the L-shaped limiting block 13, the rectangular pipe 6 is taken down from the vertical pipe 5, the T-shaped screw rod 20 is rotated immediately, the T-shaped screw rod 20 moves outwards gradually while rotating, the T-shaped screw rod 20 continues to rotate, the T-shaped screw rod 20 is separated from the mounting box 1 and the rectangular block 4 gradually, the dust screen 8 is rotated rightwards and pulled upwards, the dust screen 8 drives the rectangular block 4 to be taken out from the mounting box 1, and the dust screen 8 can be thoroughly cleaned or replaced at the moment.

In the description of the present application, it should be further noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may include, for example, a fixed connection, a detachable connection, an integral connection, a mechanical connection, an electrical connection, a direct connection, a connection through an intermediate medium, and a connection between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to specific circumstances.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A pulverized coal fired boiler adjacent furnace hot air energy-saving device comprises a hot air energy-saving device body, wherein the hot air energy-saving device body comprises two main air pipes (101), one sides of the two main air pipes (101) close to each other are communicated and fixed with communication air ducts (102), the hot air energy-saving device is characterized in that one ends of the two communication air ducts (102) close to each other are communicated and fixed with a same three-way pipe (3), the top end of the three-way pipe (3) is communicated and fixed with an adjusting valve (103), an air inlet of the adjusting valve (103) is communicated and fixed with a vertical pipe (5), the top end of the vertical pipe (5) is of a plugging structure, the left side of the vertical pipe (5) is provided with a rectangular pipe (6), the rectangular pipe (6) is communicated with the vertical pipe (5), the rectangular pipe (6) is fastened at the top of the left side of the vertical pipe (5, the inner wall of the bottom of the rectangular pipe (6) is provided with a first groove (2) with the left side arranged as an opening, a mounting box (1) with the top arranged as an opening is movably sleeved in the first groove (2), a rectangular block (4) is movably sleeved in the mounting box (1), the bottom of the dustproof net (8) is hinged with the top of the rectangular block (4), the mounting box (1) and the rectangular block (4) are fastened in the first groove (2) by screw threads, the top of the left side of the dustproof net (8) is movably contacted with an extrusion block (9), the bottom of the right side of the extrusion block (9) is provided with an inclined plane matched with the dustproof net (8), the inner wall of the top of the rectangular pipe (6) is provided with a second groove (10), a first positioning rod (11) is fixedly arranged between the inner walls of the two sides of the second groove (10), the top of the extrusion block (9) extends into the second groove (10), the extrusion block (9) is sleeved on the first positioning rod (11) in a sliding, a same first spring (12) is fixedly arranged between the left side of the extrusion block (9) and the left side inner wall of the second groove (10), the first spring (12) is movably sleeved on the first positioning rod (11), an L-shaped limiting block (13) is fixedly arranged on the top inner wall of the vertical pipe (5), the left side of the L-shaped limiting block (13) extends into the rectangular pipe (6) and is movably contacted with the top of the right side of the dust screen (8), a driving motor (14) is fixedly arranged on the inner wall of one side of the vertical pipe (5), an eccentric wheel (15) is fixedly arranged at the top end of an output shaft of the driving motor (14), a T-shaped positioning rod (17) is fixedly arranged on the left side of the driving motor (14), a clip-shaped frame (16) is slidably sleeved on the T-shaped positioning rod (17), a second spring (18) is fixedly arranged between the left side inner wall of the T-shaped positioning rod (, the second spring (18) is movably sleeved on the T-shaped positioning rod (17), the left side of the clip frame (16) is of an arc structure and is matched with the dustproof net (8), a moving block (19) is fixedly installed on one side of the top of the clip frame (16), balls are embedded on the right side of the moving block (19), and the balls are in rolling contact with the outer side of the eccentric wheel (15).

2. The adjacent furnace hot air energy-saving device of the pulverized coal fired boiler according to claim 1, characterized in that the distance between the right side of the eccentric wheel (15) and the right side of the output shaft of the driving motor (14) is larger than the distance between the left side of the square frame (16) and the left side of the dust screen (8).

3. The adjacent boiler hot air energy-saving device for the pulverized coal fired boiler according to claim 1, wherein a rectangular groove with the top arranged as an opening is formed in the left side of the vertical pipe (5), the inner wall of the rectangular groove is movably contacted with the outer side of the rectangular pipe (6), a first clamping rod is fixedly installed at the bottom of one side of the rectangular pipe (6), the right end of the first clamping rod is of a conical structure, a fixed block (7) is fixedly installed on the inner wall of the left side of the vertical pipe (5), and the fixed block (7) is movably sleeved on the first clamping rod.

4. The adjacent boiler hot air energy-saving device for the pulverized coal fired boiler according to claim 1, wherein a second clamping rod is fixedly mounted at the top of the right side of the rectangular pipe (6), a clamping groove is formed in the top of the left side of the vertical pipe (5), the right end of the second clamping rod extends into the clamping groove, the second clamping rod is clamped with the clamping groove, a first threaded groove is formed in the top of the second clamping rod, a fastening bolt is sleeved in the first threaded groove in a threaded manner, the top of the fastening bolt extends to the upper side of the vertical pipe (5), and the vertical pipe (5) is sleeved on the fastening bolt in a threaded manner.

5. The adjacent boiler hot air energy-saving device for the pulverized coal fired boiler according to claim 1, wherein a second threaded groove is formed in the inner wall of the right side of the first groove (2), a T-shaped screw rod (20) is sleeved in the second threaded groove in a threaded manner, the left side of the T-shaped screw rod (20) extends to the left side of the rectangular pipe (6), and the mounting box (1) and the rectangular block (4) are sleeved on the T-shaped screw rod (20) in a threaded manner.

6. The adjacent-boiler hot-air energy-saving device for the pulverized coal fired boiler as claimed in claim 1, wherein a rectangular hole is formed in the inner wall of the right side of the square frame (16), and the inner wall of the rectangular hole is slidably connected with the outer side of the T-shaped positioning rod (17).

7. The adjacent-boiler hot-air energy-saving device for the pulverized coal fired boiler as claimed in claim 1, wherein a mounting rod is fixedly mounted on the inner wall of the right side of the vertical pipe (5), and the top of the mounting rod is fixedly connected with the bottom of the driving motor (14).