CN220489195U

CN220489195U - Coal injection pipe structure

Info

Publication number: CN220489195U
Application number: CN202321429556.3U
Authority: CN
Inventors: 叶明星
Original assignee: Yongzhou Hongshi Cement Co ltd
Current assignee: Yongzhou Hongshi Cement Co ltd
Priority date: 2023-06-07
Filing date: 2023-06-07
Publication date: 2024-02-13
Anticipated expiration: 2033-06-07

Abstract

The utility model relates to the technical field of coal injection pipes, in particular to a coal injection pipe structure. Its technical scheme includes conveyer pipe, combustion-supporting fan, buggy pipe, oil spout pipe and motor, buggy pipe one end is provided with combustion-supporting fan, combustion-supporting fan one end is provided with the blast pipe, blast pipe one end and buggy pipe link up each other, the blast pipe upper end is provided with outer takeover, the inside oil spout pipe that is provided with of buggy pipe, buggy pipe opening part inner wall is provided with the vortex board, buggy pipe top is provided with the conveyer pipe, the conveyer pipe lower extreme is provided with the motor, the motor upper end is provided with the pivot, the pivot outer wall is provided with the hank piece. The utility model guides the heated combustion-supporting gas through the external pipe, and when the heated combustion-supporting gas passes through the vortex plate, the heated combustion-supporting gas is mixed with the gas in a rotary cyclone shape, thereby reducing the gas preheating process, improving the combustion efficiency, playing an energy-saving effect, enabling the twisted sheets to feed the coal powder at a uniform speed in a spiral manner, controlling the rotating speed of the twisted sheets, conveying combustion-supporting oil and sleeving the temperature in the kiln.

Description

Coal injection pipe structure

Technical Field

The utility model relates to the technical field of coal injection pipes, in particular to a coal injection pipe structure.

Background

When the equipment for firing processing such as cement firing is used, coal dust is conveyed into the equipment for combustion by using a coal injection pipe, and the coal injection pipe is a pipeline for conveying the coal dust.

Publication number CN212051491U novel relates to coal injection pipe structure technical field, and discloses a heat-resisting wear-resisting coal injection pipe structure, including the coal injection pipe body, coal injection pipe body left side is provided with the tube head, just the tube head with coal injection pipe body fixed connection, coal injection pipe body left side is provided with the pipe bottom, just the pipe bottom with coal injection pipe body fixed connection. The device extends and contracts the protective cover through the protective cover and the fixing buckle and through fixing the fixing buckle in the fixing grooves at different positions, so that the length of the protective cover for protecting the coal injection pipe body is lengthened and shortened, and the outer side wall of the coal injection pipe is protected;

in summary, the device is directly carried the buggy through the coal injection pipe, but does not possess energy-conserving function in the use, and the coal injection pipe generally uses when cooperating the combustion-supporting fan, and the air temperature is low for the outside air of direct extraction of the conveying air current that the fan provided, and oxygen in the low temperature gas is poor to the combustion-supporting effect of buggy, needs to heat low temperature gas in the kiln, increases the energy consumption, and we propose a coal injection pipe structure for this purpose and solve current problem.

Disclosure of Invention

The utility model aims to solve the problems in the background art and provides a coal injection pipe structure.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a coal injection pipe structure, includes conveyer pipe, combustion-supporting fan, buggy pipe, oil spout pipe and motor, buggy pipe one end is provided with combustion-supporting fan, combustion-supporting fan one end is provided with the air pipe, air pipe one end and buggy pipe link up each other, the air pipe upper end is provided with outer takeover, buggy pipe inside is provided with oil spout pipe, buggy pipe opening part inner wall is provided with the vortex board that the equidistance distributes, buggy pipe top is provided with the conveyer pipe, the conveyer pipe lower extreme is provided with the motor, the motor upper end is provided with the pivot, the pivot outer wall is provided with the hank piece that is the spiral and distributes.

When the coal injection pipe structure is used, the combustion-supporting fan is used for conveying air flow, the external pipe is connected with the external equipment pipe through the upper end flange, the external equipment pipe is used for conveying air flow and exchanging heat through the smoke chamber, the motor is operated to drive the twisted sheet to rotate in the conveying pipe, coal powder is conveyed into the air conveying pipe through the material guiding pipe, after the air flow is heated, oxygen-containing heating air is conveyed into the air conveying pipe and mixed with the coal powder, combustion efficiency is improved, the fuel injection pipe is used for conveying combustion-supporting oil to promote combustion temperature, and the temperature in the kiln is regulated.

Preferably, a valve is arranged in the external connection tube. The opening and closing of the outer connecting pipe are controlled through the valve, so that the air flow conveyed by the combustion-supporting fan is prevented from being discharged through the outer connecting pipe.

Preferably, one end of the oil spraying pipe is provided with a mounting plate, and oil spraying holes distributed at equal intervals are formed in the mounting plate. The mounting plate is closed to the oil spray pipe opening, carries out the reposition of redundant personnel through the oil spray hole to combustion-supporting oil and sprays the transport, realizes mixing with the buggy.

Preferably, the upper end of the conveying pipe is provided with a coal bin. The coal bunker is used for storing coal dust.

Preferably, a hood is arranged at the lower end of the motor, and the lower end of the hood is connected with the pulverized coal pipe. The motor is installed to the aircraft bonnet, and the motor is fixed in the conveyer pipe upper end.

Preferably, the outer wall of the conveying pipe is provided with equidistantly distributed brackets, and the lower ends of the brackets are connected with the pulverized coal pipes. The support supports the conveying pipe and is fixed above the conveying pipe.

Preferably, a material guiding pipe is arranged at one side of the lower end of the conveying pipe, and the lower end of the material guiding pipe penetrates through the coal powder pipe. The coal powder conveyed by the conveying pipe is transported and conveyed by the material guiding pipe.

Preferably, the upper end of the rotating shaft rotates to penetrate through the conveying pipe. The rotating shaft rotates inside the conveying pipe to drive the twisted sheet to rotate inside the conveying pipe.

Compared with the prior art, the utility model has the following beneficial effects:

1. according to the utility model, the outer connecting pipe is arranged at the upper end of the air supply pipe, so that high-temperature gas discharged by the smoke chamber of the rotary kiln can be recycled, heated air is poured into the coal powder pipe to be mixed with coal powder, and when the air passes through the vortex plate, the gas and the coal powder are conveyed into the rotary kiln in a spiral cyclone shape, the combustion effect of the mixed high-temperature gas and the mixed coal powder is improved, the combustion-supporting gas is directly heated, a heating link is reduced, and the consumption of energy is saved.

Drawings

FIG. 1 is a main section of the present utility model;

FIG. 2 is a front view of the present utility model;

fig. 3 is a side view of the coal injection pipe of the present utility model.

Reference numerals: 1. a coal bunker; 2. a delivery tube; 3. twisting sheets; 4. a material guiding pipe; 5. an outer connecting pipe; 6, a combustion-supporting fan; 7. a valve; 8. an air supply pipe; 9. a pulverized coal pipe; 10. an oil injection pipe; 11. a mounting plate; 12. a vortex plate; 13. a motor; 14. a bracket; 15. a rotating shaft; 16. and an oil injection hole.

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. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example 1

As shown in fig. 1-3, the coal injection pipe structure provided by the utility model comprises a conveying pipe 2, a combustion-supporting fan 6, a coal powder pipe 9, an oil injection pipe 10 and a motor 13, wherein one end of the coal powder pipe 9 is provided with the combustion-supporting fan 6, one end of the combustion-supporting fan 6 is provided with an air supply pipe 8, one end of the air supply pipe 8 is communicated with the coal powder pipe 9, the upper end of the air supply pipe 8 is provided with an external pipe 5, a valve 7 is arranged in the external pipe 5, the oil injection pipe 10 is arranged in the coal powder pipe 9, one end of the oil injection pipe 10 is provided with a mounting plate 11, oil injection holes 16 which are distributed at equal intervals are formed in the mounting plate 11, and an inner wall of an opening of the coal powder pipe 9 is provided with vortex plates 12 which are distributed at equal intervals.

The procedure is based on example 1: the combustion-supporting fan 6 carries the air current, outer takeover 5 passes through upper flange and external equipment union coupling, the passage of external equipment union coupling conveying air current, through smoke chamber heat exchange, after the air current heats, oxygen-containing heated gas carries to the air feed pipe 8 inside, mix with the buggy, improve combustion efficiency, the combustion thoroughly reduces nitrogen oxide's production, after the combustion-supporting gas obtains heating simultaneously, reduce preheating process in the kiln, the buggy passes through vortex board 12 when, mix with high temperature combustion-supporting gas, realize fully burning, the fuel injection pipe 10 carries combustion-supporting oil to promote combustion temperature as required simultaneously, adjust the kiln internal temperature.

Example two

As shown in fig. 1-3, compared with the first embodiment, the present embodiment of the present utility model further includes: the coal powder pipe 9 top is provided with conveyer pipe 2, conveyer pipe 2 upper end is provided with coal bunker 1, conveyer pipe 2 lower extreme is provided with motor 13, motor 13 lower extreme is provided with the aircraft bonnet, and the aircraft bonnet lower extreme is connected with coal powder pipe 9, motor 13 upper end is provided with pivot 15, pivot 15 upper end rotates and runs through conveyer pipe 2, the pivot 15 outer wall is provided with the hank piece 3 that is the spiral and distributes, conveyer pipe 2 outer wall is provided with equidistant support 14 that distributes, support 14 lower extreme is connected with coal powder pipe 9, conveyer pipe 2 lower extreme one side is provided with passage 4, passage 4 lower extreme runs through coal powder pipe 9.

In this embodiment, when the coal bunker 1 conveys coal powder, the motor 13 operates to drive the cutter blade to rotate in the conveying pipe 2, the coal powder is conveyed into the air conveying pipe 8 through the material guiding pipe 4, and the conveying is realized through the air flow of the combustion-supporting fan, so that the coal powder is conveyed at a constant speed.

The above-described embodiments are merely a few preferred embodiments of the present utility model, and many alternative modifications and combinations of the above-described embodiments will be apparent to those skilled in the art based on the technical solutions of the present utility model and the related teachings of the above-described embodiments.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a coal injection pipe structure, includes conveyer pipe (2), combustion-supporting fan (6), buggy pipe (9), spouts oil pipe (10) and motor (13), its characterized in that: the coal powder pipe (9) one end is provided with combustion-supporting fan (6), combustion-supporting fan (6) one end is provided with air supply pipe (8), air supply pipe (8) one end and coal powder pipe (9) link up each other, air supply pipe (8) upper end is provided with outer takeover (5), inside oil spout pipe (10) that are provided with of coal powder pipe (9), coal powder pipe (9) opening part inner wall is provided with vortex board (12) that the equidistance distributes, coal powder pipe (9) top is provided with conveyer pipe (2), conveyer pipe (2) lower extreme is provided with motor (13), motor (13) upper end is provided with pivot (15), pivot (15) outer wall is provided with hank piece (3) that are the spiral and distribute.

2. A coal injection pipe structure according to claim 1, characterized in that: the valve (7) is arranged in the external connection pipe (5).

3. A coal injection pipe structure according to claim 1, characterized in that: one end of the oil spray pipe (10) is provided with a mounting plate (11), and oil spray holes (16) distributed at equal intervals are formed in the mounting plate (11).

4. A coal injection pipe structure according to claim 1, characterized in that: the upper end of the conveying pipe (2) is provided with a coal bin (1).

5. A coal injection pipe structure according to claim 1, characterized in that: the lower end of the motor (13) is provided with a hood, and the lower end of the hood is connected with the pulverized coal pipe (9).

6. A coal injection pipe structure according to claim 1, characterized in that: the outer wall of the conveying pipe (2) is provided with equidistantly distributed brackets (14), and the lower ends of the brackets (14) are connected with the pulverized coal pipes (9).

7. A coal injection pipe structure according to claim 1, characterized in that: a material guiding pipe (4) is arranged at one side of the lower end of the conveying pipe (2), and the lower end of the material guiding pipe (4) penetrates through the pulverized coal pipe (9).

8. A coal injection pipe structure according to claim 1, characterized in that: the upper end of the rotating shaft (15) rotates to penetrate through the conveying pipe (2).