CN212108487U

CN212108487U - Air volume adjusting device for pulverized coal fired boiler

Info

Publication number: CN212108487U
Application number: CN202020412536.5U
Authority: CN
Inventors: 李文斌
Original assignee: Jiangsu Lee and Man Paper Manufacturing Co Ltd
Current assignee: Jiangsu Lee and Man Paper Manufacturing Co Ltd
Priority date: 2020-03-27
Filing date: 2020-03-27
Publication date: 2020-12-08
Anticipated expiration: 2030-03-27

Abstract

The utility model belongs to boiler buggy processing equipment field, especially an air regulation device for pulverized coal boiler to current control wind speed when directly blowing the buggy, and then make the problem of the distribution of buggy of quantitative control when directly blowing, now propose following scheme, it includes the furnace body, the inlet port has all been seted up to the both sides of furnace body, and fixed mounting has the filter on the inner wall of inlet port, the equal fixed mounting in both sides of furnace body has the air duct, and fixed mounting has the dead lever on the inner wall of air duct, rotates on the dead lever and is connected with first bull stick, and the equal fixed mounting of one end that two first bull sticks are close to mutually has the flabellum that admits air, and one side fixed mounting of a dead lever in two dead levers has the motor, the output shaft of motor and the first bull stick fixed connection that corresponds. The utility model discloses simple structure, convenient to use can blow to the furnace body, can also adjust control to the intake simultaneously, makes things convenient for people to use.

Description

Air volume adjusting device for pulverized coal fired boiler

Technical Field

The utility model relates to a boiler buggy processing equipment technical field especially relates to an air regulation device for pulverized coal boiler.

Background

Modern large boilers mostly adopt a direct-fired pulverizing system, each coal mill needs to provide primary air to one burner layer of the boiler, and each burner layer usually has 4 burners, sometimes even 8 burners. The pulverized coal distributor has the function of uniformly distributing pulverized coal-carrying airflow after the pulverized coal mill finishes grinding to a plurality of primary air pipelines and a combustor, and the performance of the pulverized coal distributor plays an important role in safe and economic operation of the combustor, a boiler and the like.

The existing air speed control device for the pulverized coal boiler can not control the air speed when pulverized coal is directly blown, and further quantitatively control the distribution of the pulverized coal when the pulverized coal is directly blown, so that the air quantity adjusting device for the pulverized coal boiler is provided.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the control wind speed that can not when directly blowing the buggy now, and then make the buggy at the shortcoming of the distribution of quantitative control buggy when directly blowing, and the air regulation device for pulverized coal boiler who provides.

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

the utility model provides an air regulation device for pulverized coal boiler, includes the furnace body, the inlet port has all been seted up to the both sides of furnace body, and fixed mounting has the filter on the inner wall of inlet port, the equal fixed mounting in both sides of furnace body has the air duct, and fixed mounting has the dead lever on the inner wall of air duct, rotates on the dead lever to be connected with first bull stick, and the equal fixed mounting of one end that two first bull sticks are close to mutually has the flabellum that admits air, and one side fixed mounting of a dead lever in two dead levers has the motor, the output shaft of motor and the first bull stick fixed connection who corresponds, sliding connection has the baffle that two symmetries set up on the inner.

Preferably, the inner wall of the air guide pipe is rotatably connected with a bidirectional screw, one side of each of the two baffles on the same side is fixedly provided with a moving block, the moving blocks are in threaded connection with the corresponding bidirectional screw, the rotating bidirectional screw can drive the baffles to adjust the air inflow of the air inlet through the threaded connection with the moving blocks, and the inner wall of the air guide pipe is fixedly provided with a protection plate.

Preferably, the outside of furnace body is rotated the cover and is equipped with the ring gear, and the top fixed mounting of two-way screw rod has the gear, and two gears all mesh with the ring gear mutually, and pivoted ring gear can drive two-way screw rod through the meshing with the gear and rotate.

Preferably, one side fixed mounting of furnace body has the positioning seat, and the last rotation of positioning seat is connected with the second bull stick, and two first bull sticks all are connected with the transmission of second bull stick, and the first bull stick of pivoted can drive another first bull stick through the transmission connection and rotate simultaneously, and then drives the flabellum that admits air and rotate.

Preferably, the annular positioning groove is formed in the outer side of the furnace body, two positioning blocks are fixedly mounted on the inner side of the gear ring, the two positioning blocks are connected with the annular positioning groove in a sliding mode, and the positioning blocks and the annular positioning groove can limit the gear ring.

In the utility model, the air volume adjusting device for the pulverized coal boiler has the advantages that the gear is meshed with the toothed ring, and the bidirectional screw and the threads of the moving block enable the rotating toothed ring to drive the baffle to adjust the air inlet volume in the air guide pipe;

because the transmission of two first bull sticks and second bull stick is connected for the output shaft of motor can rotate through driving two first bull sticks, and then bloies in to the furnace body through the flabellum that admits air.

The utility model discloses simple structure, convenient to use can blow to the furnace body, can also adjust control to the intake simultaneously, makes things convenient for people to use.

Drawings

Fig. 1 is a schematic structural view of an air volume adjusting device for a pulverized coal boiler according to the present invention;

fig. 2 is a top view of an air volume adjusting device for a pulverized coal boiler according to the present invention;

fig. 3 is a schematic structural diagram of a part a of an air volume adjusting device for a pulverized coal boiler according to the present invention.

In the figure: 1 furnace body, 2 inlet ports, 3 filter plates, 4 air ducts, 5 fixed rods, 6 motors, 7 first rotating rods, 8 air inlet fan blades, 9 protection plates, 10 baffle plates, 11 bidirectional screw rods, 12 moving blocks, 13 toothed rings, 14 gears, 15 positioning seats and 16 second rotating 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.

Example 1

Referring to fig. 1-3, an air regulation device for pulverized coal boiler, including furnace body 1, inlet port 2 has all been seted up to furnace body 1's both sides, fixed mounting has filter 3 on inlet port 2's the inner wall, the equal fixed mounting in furnace body 1's both sides has air duct 4, fixed mounting has dead lever 5 on air duct 4's the inner wall, it is connected with first pivot pole 7 to rotate on the dead lever 5, the equal fixed mounting of one end that two first pivot poles 7 are close to mutually has air inlet fan blade 8, one side fixed mounting of a dead lever 5 in two dead levers 5 has motor 6, motor 6's output shaft and the 7 fixed connection of the first pivot pole that correspond, sliding connection has the baffle 10 of two symmetry settings on air duct 4's the inner wall, baffle 10 cooper.

The utility model discloses in, rotate on the inner wall of air duct 4 and be connected with two-way screw rod 11, there is movable block 12 with the equal fixed mounting in one side of two baffles 10 of one side, movable block 12 and the 11 threaded connection of two-way screw rod that correspond.

The utility model discloses in, the outside of furnace body 1 is rotated the cover and is equipped with ring gear 13, and the top fixed mounting of two-way screw rod 11 has gear 14, and two gear 14 all mesh with ring gear 13 mutually.

The utility model discloses in, one side fixed mounting of furnace body 1 has positioning seat 15, and positioning seat 15 goes up to rotate and is connected with second bull stick 16, and two first bull sticks 7 all are connected with the 16 transmissions of second bull stick.

The utility model discloses in, annular positioning groove has been seted up in the outside of furnace body 1, and the inboard fixed mounting of ring gear 13 has two locating pieces, two locating pieces all with annular positioning groove sliding connection.

Example 2

Referring to fig. 1-3, an air regulation device for pulverized coal boiler, including furnace body 1, inlet port 2 has all been seted up to furnace body 1's both sides, the welding has filter 3 on inlet port 2's the inner wall, air duct 4 has all been welded to furnace body 1's both sides, the welding has dead lever 5 on air duct 4's the inner wall, it is connected with first pivot pole 7 to rotate on the dead lever 5, two first pivot poles 7 one end that is close to mutually all have welded the flabellum 8 that admits air, the welding of one side of a dead lever 5 in two dead levers 5 has motor 6, the output shaft of motor 6 and the 7 fixed connection of first pivot pole that correspond, sliding connection has the baffle 10 of two symmetry settings on air duct 4's the inner.

The utility model discloses in, it is connected with two-way screw rod 11 to rotate on the inner wall of air duct 4, has all welded movable block 12 with one side of two baffles 10 of one side,

movable block

12 and 11 threaded connection of two-way screw rod that correspond, and pivoted two-way screw rod 11 can drive baffle 10 through the threaded connection with movable block 12 and adjust the air input of inlet port 2, and the welding has guard plate 9 on the inner wall of air duct 4.

The utility model discloses in, the outside of furnace body 1 is rotated the cover and is equipped with ring gear 13, and the top welding of two-way screw rod 11 has gear 14, and two gear 14 all mesh with ring gear 13 mutually, and pivoted ring gear 13 can drive two-way screw rod 11 through the meshing with gear 14 and rotate.

The utility model discloses in, one side welding of furnace body 1 has positioning seat 15, and positioning seat 15 is last to rotate and be connected with second bull stick 16, and two first bull sticks 7 all are connected with the 16 transmissions of second bull stick, and pivoted first bull stick 7 can be connected through the transmission and drive another first bull stick 7 and rotate simultaneously, and then drives air inlet fan blade 8 and rotate.

The utility model discloses in, annular positioning groove has been seted up in the outside of furnace body 1, and the inboard welding of ring gear 13 has two locating pieces, two locating pieces all with annular positioning groove sliding connection, and the locating piece can carry on spacingly with annular positioning groove to ring gear 13.

The utility model discloses in, when needs ventilate in to furnace body 1, the switch of starter motor 6, motor 6's output shaft drives first bull stick 7 and rotates, first bull stick 7 drives the transmission through belt pulley and belt and connects and drive second bull stick 15 and rotate, second bull stick 15 is connected through the transmission of belt pulley and belt and is driven another first bull stick 7 and rotate simultaneously, two first bull sticks 7 of pivoted drive flabellum 8 rotations that admits air, and then blow 1 inside furnace body through inlet port 2, when needs are controlled the amount of wind that admits air, rotate ring gear 13, ring gear 13 drives two-way screw rod 11 through the intermeshing with two gears 14 and rotates, two-way screw rod 11 drives sheltering from of baffle 10 to 2 through the threaded connection with movable block 12, and then change inlet port volume and wind speed, thereby make things convenient for people to use.

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. An air volume adjusting device for a pulverized coal boiler comprises a furnace body (1) and is characterized in that air inlets (2) are formed in two sides of the furnace body (1), a filter plate (3) is fixedly mounted on the inner wall of each air inlet (2), air guide pipes (4) are fixedly mounted on two sides of the furnace body (1), fixed rods (5) are fixedly mounted on the inner wall of each air guide pipe (4), first rotating rods (7) are rotatably connected onto the fixed rods (5), air inlet fan blades (8) are fixedly mounted at the ends, close to each other, of the two first rotating rods (7), a motor (6) is fixedly mounted on one side of one fixed rod (5) of the two fixed rods (5), an output shaft of the motor (6) is fixedly connected with the corresponding first rotating rods (7), two symmetrically-arranged baffles (10) are slidably connected onto the inner wall of each air guide pipe (4), and the baffles (10) are matched with the corresponding air inlet fan blades, and a protection plate (9) is fixedly arranged on the inner wall of the air duct (4).

2. The air volume adjusting device for the pulverized coal fired boiler as defined in claim 1, wherein the inner wall of the air duct (4) is rotatably connected with a bidirectional screw (11), one side of each of the two baffles (10) on the same side is fixedly provided with a moving block (12), and the moving blocks (12) are in threaded connection with the corresponding bidirectional screws (11).

3. The air volume adjusting device for the pulverized coal fired boiler as defined in claim 1, wherein a toothed ring (13) is rotatably sleeved outside the furnace body (1), a gear (14) is fixedly mounted at the top end of the bidirectional screw (11), and both gears (14) are engaged with the toothed ring (13).

4. The air volume adjusting device for the pulverized coal fired boiler as defined in claim 1, wherein a positioning seat (15) is fixedly installed at one side of the furnace body (1), a second rotating rod (16) is rotatably connected to the upper portion of the positioning seat (15), and the two first rotating rods (7) are in transmission connection with the second rotating rod (16).

5. The air volume adjusting device for the pulverized coal fired boiler as defined in claim 1, wherein an annular positioning groove is formed in the outer side of the furnace body (1), two positioning blocks are fixedly mounted on the inner side of the gear ring (13), and both the two positioning blocks are slidably connected with the annular positioning groove.