CN217715021U

CN217715021U - Dense-phase pneumatic conveying equipment matched with boiler

Info

Publication number: CN217715021U
Application number: CN202221695789.3U
Authority: CN
Inventors: 刘洪伟; 刘金炬; 杜伟丰; 刘维云
Original assignee: Wuxi Jingde Environmental Protection Technology Co ltd
Current assignee: Wuxi Jingde Environmental Protection Technology Co ltd
Priority date: 2022-06-30
Filing date: 2022-06-30
Publication date: 2022-11-01
Anticipated expiration: 2032-06-30

Abstract

The utility model relates to a looks power transmission technical field specifically discloses a supporting dense phase pneumatic conveyor of boiler, including the feed bin, inlet pipe and row's material pipe are installed respectively to the upper and lower both ends of feed bin, and one side of feed bin upper end and row's material pipe install first gas-supply pipe and second gas-supply pipe respectively. The utility model discloses well piston rebound, the barrel volume that its reposition of redundant personnel section of thick bamboo spilt constantly enlarges, and because fixed connection between reposition of redundant personnel section of thick bamboo and the feed bin to when making piston rebound, make the feed bin accommodation space obtain the expansion under the effect of reposition of redundant personnel section of thick bamboo, the feed bin is inside can hold more gas promptly, thereby can reduce the inside and inside atmospheric pressure of pipeline of feed bin, reduce the feed bin from this or supporting row pipeline such as material pipe and lead to rising the damaged phenomenon of rising because of atmospheric pressure is unusual for short time.

Description

Dense phase pneumatic conveying equipment matched with boiler

Technical Field

The utility model relates to a looks power transmission technical field especially relates to a supporting dense phase pneumatic conveyor of boiler equipment.

Background

The boiler is an energy conversion device, the energy input to the boiler comprises chemical energy and electric energy in fuel, the boiler outputs steam, high-temperature water or an organic heat carrier with certain heat energy, and the boiler generally needs to convey pulverized coal into the boiler for combustion when in work.

At present, pulverized coal is generally conveyed to the interior of a boiler through pneumatic conveying equipment, the pneumatic conveying is also called airflow conveying, granular materials are conveyed in a closed pipeline along the airflow direction by utilizing the energy of airflow, the pneumatic conveying is a specific application of fluidization technology, in the pneumatic conveying process, two ends of a stock bin are respectively connected with a feeding pipe and a discharging pipe, and the stock bin and the discharging pipe are both connected with gas pipes, so that the powder in the stock bin is conveyed by inputting gas into the stock bin and the discharging pipe through the gas pipes.

However, the storage bin of the existing conveying equipment is generally composed of a sealed shell, and no buffer part is arranged in the storage bin, so that when the air pressure in the storage bin or the pipeline is too high, the storage bin or the pipeline cannot be shunted, and the storage bin or the pipeline of the equipment is easy to expand; therefore, in order to solve the technical problem, a dense-phase pneumatic conveying device matched with a boiler is provided.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a dense-phase pneumatic conveying device matched with a boiler.

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

the utility model provides a supporting dense phase pneumatic conveyor of boiler, includes the feed bin, the inlet pipe is installed respectively at the upper and lower both ends of feed bin and row material pipe, and one side of feed bin upper end and row material pipe install first gas-supply pipe and second gas-supply pipe respectively, and a reposition of redundant personnel section of thick bamboo is installed to the opposite side of feed bin upper end, and the inside of a reposition of redundant personnel section of thick bamboo is equipped with the piston, and the body of rod lower extreme of piston extends to the inside of feed bin and is connected with the net rack.

Preferably, a plurality of air holes are formed in the upper end of the shunting cylinder, and a dust cover is arranged outside the upper end of the shunting cylinder.

Preferably, the dust cover is fixedly connected with the outer ring surface at the upper end of the shunting barrel through a support frame, and the lower end of the dust cover is provided with a matched annular filter screen corresponding to the shunting barrel.

Preferably, the inner ring surface of the shunt cylinder is a smooth surface, and the outer ring surface at the upper end of the piston is sleeved with a matched sealing sleeve.

Preferably, a stabilizing frame is fixed at the lower end of the inner ring surface of the flow distribution cylinder, a guide cylinder is installed in the middle of the stabilizing frame, and a rod body at the lower end of the piston is inserted into the guide cylinder in a sliding mode.

Preferably, the grid frame is kept away from one end of piston and is slided to insert and is equipped with the guide bar, and the upper and lower both ends at the feed bin inner wall are fixed at the both ends of guide bar.

Preferably, all install the matched with motorised valve on the body of inlet pipe, row's material pipe, first gas-supply pipe and second gas-supply pipe, and inlet pipe, row's material pipe, first gas-supply pipe and second gas-supply pipe all are connected with external pay-off, material and air supply equipment.

The utility model provides a pair of supporting dense phase pneumatic conveyor of boiler, beneficial effect lies in:

1: the utility model discloses in because the lower extreme of the body of the piston rod extends to the inside lower extreme of feed bin and is connected with the grid frame, and at the in-process of external feeding equipment to the inside powder of carrying of feed bin, its grid frame is buried in the inside of powder, and then when the powder is to the inside flow of discharge tube of feed bin lower extreme, the powder need just can be to the inside flow of discharge tube after passing through the grid frame, the powder is when passing through the grid frame promptly, the grid frame can disperse the powder, thereby avoided the powder to pile up the caking and leaded to the phenomenon that follow-up gas conveying effect receives the influence.

2: the utility model discloses in when the inside or the inside atmospheric pressure of row material pipe of feed bin risees unusually, its atmospheric pressure promotes the piston and removes to the inside upper end of reposition of redundant personnel section of thick bamboo, and then along with the removal of piston, the barrel volume that its reposition of redundant personnel section of thick bamboo spilt constantly enlarges, and because fixed connection between reposition of redundant personnel section of thick bamboo and the feed bin, thereby when making the piston rebound, make the feed bin accommodation space obtain the expansion under the effect of reposition of redundant personnel section of thick bamboo, the feed bin inside can hold more gas promptly, thereby can reduce the inside atmospheric pressure of feed bin and pipeline, from this reduce feed bin or supporting arrange that pipelines such as material pipe lead to rising the damaged phenomenon of rising because of atmospheric pressure is unusual for short time.

Drawings

FIG. 1 is an isometric view of a dense phase pneumatic conveying apparatus for a boiler according to the present invention;

FIG. 2 is a front cross-sectional view of a dense phase pneumatic conveying device for a boiler;

FIG. 3 is a schematic structural view of a dense phase pneumatic conveying apparatus for a boiler according to the present invention;

FIG. 4 is a schematic view of the dust cover and the splitter cylinder of the dense phase pneumatic conveying equipment for a boiler according to the present invention;

fig. 5 is a schematic diagram showing the cooperation of the sealing sleeve and the piston of the dense-phase pneumatic conveying equipment matched with the boiler according to the present invention.

In the figure: 1. a storage bin; 2. a feeding pipe; 3. a discharge pipe; 4. a first gas delivery pipe; 5. a second gas delivery pipe; 6. a shunt cylinder; 7. a piston; 8. a grid frame; 9. a filter screen; 10. sealing sleeves; 11. a stabilizer frame; 12. a guide cylinder; 13. a guide bar; 14. an electrically operated valve; 15. a dust cover.

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.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1-5, the dense-phase pneumatic conveying equipment matched with the boiler comprises a storage bin 1, wherein a feeding pipe 2 and a discharging pipe 3 are respectively installed at the upper end and the lower end of the storage bin 1, a first gas pipe 4 and a second gas pipe 5 are respectively installed on one side of the upper end of the storage bin 1 and the discharging pipe 3, a shunting barrel 6 is installed on the other side of the upper end of the storage bin 1, a piston 7 is arranged inside the shunting barrel 6, and the lower end of a rod body of the piston 7 extends to the inside of the storage bin 1 and is connected with a grid frame 8.

As a technical optimization scheme of the utility model, a plurality of air holes are arranged at the upper end of the flow dividing cylinder 6, and a dust cover 15 is arranged outside the upper end of the flow dividing cylinder 6; the setting of bleeder vent and dust cover 15 for when piston 7 upwards moved, the inside gaseous accessible bleeder vent of its reposition of redundant personnel section of thick bamboo 6 flowed, avoided gaseous phenomenon that can't flow and cause the influence to piston 7 moving stroke in reposition of redundant personnel section of thick bamboo 6 inside promptly, and the setting of dust cover 15, thereby can avoid the dust of air etc. to get into the smooth and easy degree when reposition of redundant personnel section of thick bamboo 6 inside to cause the phenomenon of influence to piston 7 when removing.

As a technical optimization scheme of the utility model, the dust cover 15 is fixedly connected with the outer annular surface of the upper end of the shunting barrel 6 through the support frame, and the lower end of the dust cover 15 is provided with a matched annular filter screen 9 corresponding to the shunting barrel 6; due to the arrangement of the filter screen 9, when the piston 7 is sucked to the upper end inside the shunt cylinder 6 by external air in the downward movement process of the piston 7, the filter screen 9 can filter the air, so that dust and the like are prevented from being carried to the inside of the shunt cylinder 6 by air flow.

As a technical optimization scheme of the utility model, the inner ring surface of the shunt cylinder 6 is a smooth surface, and the outer ring surface at the upper end of the piston 7 is sleeved with a matched sealing sleeve 10; the sealing sleeve 10 is arranged, so that the sealing performance between the piston 7 and the shunt cylinder 6 is better.

As a technical optimization scheme of the utility model, a stabilizing frame 11 is fixed at the lower end of the inner annular surface of the flow distributing cylinder 6, a guide cylinder 12 is installed in the middle of the stabilizing frame 11, and a rod body at the lower end of the piston 7 is inserted in the guide cylinder 12 in a sliding manner; the guide cylinder 12 is provided to have a guide effect on the piston 7, i.e., to stabilize the movement of the piston 7.

As a technical optimization scheme of the utility model, a guide rod 13 is inserted into one end of the grid frame 8 far away from the piston 7 in a sliding manner, and two ends of the guide rod 13 are fixed at the upper and lower ends of the inner wall of the storage bin 1; the setting of guide bar 13 can be spacing its when grid 8 removes the in-process, and has promoted the stability when grid 8 removes.

As a technical optimization scheme of the utility model, the inlet pipe 2, the discharge pipe 3, the first gas pipe 4 and the second gas pipe 5 are all provided with the matched electric valves 14, and the inlet pipe 2, the discharge pipe 3, the first gas pipe 4 and the second gas pipe 5 are all connected with external feeding, material using and gas supply equipment; the electric valve 14 is arranged to control the on and off states of each pipeline.

The use principle and the advantages are as follows: the utility model discloses in the use, because feed bin 1 is the installation of vertical state, and then piston 7 moves to the lower extreme of reposition of redundant personnel section of thick bamboo 6 under the effect of lower end net grillage 8 and self gravity, piston 7 lower surface contacts with the upper surface of steady rest 11 promptly, open the motorised valve 14 of inlet pipe 2 this moment and close row material pipe 3, the motorised valve 14 of first gas-supply pipe 4 and second gas-supply pipe 5, further alright make external feeding equipment pass through inlet pipe 2 to 1 inside transport powder in feed bin, and behind the appropriate powder of 1 inside input in feed bin, close inlet pipe 2's motorised valve 14, and open row material pipe 3, the motorised valve 14 of first gas-supply pipe 4 and second gas-supply pipe 5, external feeding equipment is through first gas-supply pipe 4 and second gas-supply pipe 5 to 1 inside and row material pipe 3 inside gas high-pressure gas of material pipe from this.

In the process, after high-pressure gas enters the discharging pipe 3 through the second gas conveying pipe 5, the high-pressure gas moves to material using equipment such as a boiler at the other end through the discharging pipe 3, and certain suction force is generated at one end, close to the storage bin 1, of the discharging pipe 3 when the gas flows in the process, so that powder in the storage bin 1 flows into the discharging pipe 3 under the combined action of gravity and the suction force, and finally is carried into the boiler along the discharging pipe 3 by the gas for combustion; simultaneously at this in-process, owing to input gas to 1 inside of feed bin simultaneously through first gas-supply pipe 4 for 1 inside is in certain high pressure state in feed bin, can extrude the powder of 1 inside of feed bin through this high pressure promptly, thereby makes the powder can be faster to arranging the inside inflow of expecting 3 pipes, has promoted the outflow speed of having carried the powder promptly.

Further in this scheme use, because the lower extreme of the 7 body of rod of piston extends to the lower extreme of 1 inside of feed bin and is connected with net rack 8, and at the in-process of external feeding equipment to 1 inside transport powder in feed bin, its net rack 8 is buried in the inside of powder, and then when the powder is to the 3 inside flows of row's material pipe of 1 lower extreme of feed bin, the powder need just can be to arranging the 3 inside flows of material pipe after through net rack 8, the powder is when passing through net rack 8 promptly, net rack 8 can disperse the powder, thereby avoided the powder to pile up the caking and leaded to the phenomenon that follow-up gas conveying effect received the influence.

Meanwhile, when the air pressure in the bin 1 or the discharge pipe 3 rises abnormally, the air pressure pushes the piston 7 to move towards the upper end in the shunting cylinder 6, the volume of the cylinder body leaked by the shunting cylinder 6 is enlarged continuously along with the movement of the piston 7, and the shunting cylinder 6 is fixedly connected with the bin 1, so that when the piston 7 moves upwards, the accommodating space of the bin 1 is expanded under the action of the shunting cylinder 6, namely the bin 1 can accommodate more air, the air pressure in the bin 1 and the pipeline can be reduced, and the phenomenon that the bin 1 or the matched discharge pipe 3 and other pipelines are damaged due to the fact that the air pressure rises abnormally and temporarily is reduced; simultaneously when the inside powder that also takes place atmospheric pressure when feed bin 1 inside behind the short time rising unusually, because net rack 8 still is buried in the inside of powder, and then when piston 7 was jack-up by atmospheric pressure, its piston 7 passed through the body of rod and drives net rack 8 synchronous motion, and net rack 8 is at the removal in-process, can disperse the powder of top to it is more smooth and easy when making the powder discharge.

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. The utility model provides a supporting dense phase pneumatic conveyor of boiler, includes feed bin (1), a serial communication port, inlet pipe (2) and row material pipe (3) are installed respectively to the upper and lower both ends of feed bin (1), and one side of feed bin (1) upper end and row material pipe (3) install first gas-supply pipe (4) and second gas-supply pipe (5) respectively, reposition of redundant personnel section of thick bamboo (6) are installed to the opposite side of feed bin (1) upper end, and the inside of reposition of redundant personnel section of thick bamboo (6) is equipped with piston (7), and the body of rod lower extreme of piston (7) extends to the inside of feed bin (1) and is connected with net frame (8).

2. The matched dense-phase pneumatic conveying equipment for the boiler as claimed in claim 1, wherein a plurality of air vents are formed in the upper end of the flow dividing cylinder (6), and a dust cover (15) is arranged outside the upper end of the flow dividing cylinder (6).

3. The dense-phase pneumatic conveying equipment matched with the boiler as claimed in claim 2, wherein the dust cover (15) is fixedly connected with the outer annular surface of the upper end of the shunting cylinder (6) through a support frame, and the lower end of the dust cover (15) is provided with a matched annular filter screen (9) corresponding to the shunting cylinder (6).

4. The dense-phase pneumatic conveying equipment matched with the boiler according to claim 1, wherein the inner annular surface of the shunting cylinder (6) is a smooth surface, and a matched sealing sleeve (10) is sleeved on the outer annular surface of the upper end of the piston (7).

5. The dense-phase pneumatic conveying equipment matched with the boiler according to claim 1, wherein a stabilizing frame (11) is fixed at the lower end of the inner annular surface of the flow dividing cylinder (6), a guide cylinder (12) is installed in the middle of the stabilizing frame (11), and a rod body at the lower end of the piston (7) is slidably inserted into the guide cylinder (12).

6. The dense-phase pneumatic conveying equipment matched with the boiler according to claim 1, wherein a guide rod (13) is slidably inserted into one end of the grid frame (8) far away from the piston (7), and two ends of the guide rod (13) are fixed to the upper end and the lower end of the inner wall of the storage bin (1).

7. The matched dense-phase pneumatic conveying equipment for the boiler as claimed in claim 1, wherein the feeding pipe (2), the discharging pipe (3), the first air conveying pipe (4) and the second air conveying pipe (5) are respectively provided with a matched electric valve (14), and the feeding pipe (2), the discharging pipe (3), the first air conveying pipe (4) and the second air conveying pipe (5) are respectively connected with external feeding, material using and air feeding equipment.