CN215352754U

CN215352754U - Kiln tail ultra-clean discharging equipment that gathers dust

Info

Publication number: CN215352754U
Application number: CN202121242297.4U
Authority: CN
Inventors: 邓清平; 郭敏
Original assignee: Sinoma Tianshan Yunfu Cement Co ltd
Current assignee: Sinoma Tianshan Yunfu Cement Co ltd
Priority date: 2021-06-04
Filing date: 2021-06-04
Publication date: 2021-12-31
Anticipated expiration: 2031-06-04

Abstract

The utility model discloses a kiln tail dust collection ultra-clean discharge device which comprises a box body and a neutralization box, wherein a flat plate is fixed below one side of the box body, the upper surface of the flat plate is fixedly connected with the lower surface of the neutralization box, a connecting pipe is fixed on one side of the upper surface of the neutralization box, one end of the connecting pipe, which is far away from the neutralization box, is fixed on one side of the box body, the interior of the neutralization box is communicated with the interior of the box body through the connecting pipe, an air inlet pipe is fixed above one side of the neutralization box, one end of the air inlet pipe extends into the interior of the neutralization box, one end of the air inlet pipe is positioned below the interior of the neutralization box, and one end of the connecting pipe, which is connected with the neutralization box, is positioned above the interior of the neutralization box. The utility model has the advantages of lengthening the filter bag, enlarging the filtering area, reducing the filtering wind speed and reducing the energy consumption.

Description

Kiln tail ultra-clean discharging equipment that gathers dust

Technical Field

The utility model relates to the technical field of dust treatment, in particular to a kiln tail dust collection ultra-clean discharge device.

Background

The cement is a powdery hydraulic inorganic cementing material, is added with water and stirred to form slurry, can be hardened in air or water, and can firmly bond materials such as sand, stone and the like together. The early lime and pozzolan mixtures are similar to modern lime and pozzolan cements, and concrete made by cementing crushed stone with them not only has higher strength after hardening, but also resists erosion by fresh water or salt-containing water. As an important cementing material, the high-performance cement is widely applied to engineering such as civil construction, water conservancy, national defense and the like for a long time.

A large amount of dust-containing gas is generated after cement clinker is fired by a kiln body, the dust-containing gas is mostly discharged after being collected by a bag type dust collector, along with the increasing of environmental protection requirements, the used filter bag material is changed from glass fiber film to composite P84 film, even pure P84 film is used to meet the emission standard of particulate matters, but the pressure difference of a dust collection inlet and a dust collection outlet is increased along with the increase of the pressure difference, the system resistance is increased, the energy consumption of a tail exhaust fan is increased, and the comprehensive power consumption of the clinker is high.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a kiln tail dust collection ultra-clean discharge device which has the advantages of lengthening a filter bag, enlarging the filter area, reducing the filter air speed and reducing the energy consumption, and solves the problems that the pressure difference of a dust collection inlet and a dust collection outlet is increased along with the increase of the system resistance, the energy consumption of a tail exhaust fan is increased, and the comprehensive power consumption of clinker is high.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a kiln tail ultra-clean discharging equipment that gathers dust, includes box and neutralization box, box one side below is fixed with the flat board, dull and stereotyped upper surface and neutralization box lower surface fixed connection, neutralization box upper surface one side is fixed with the connecting pipe, and the one end that the connecting pipe deviates from the neutralization box is fixed with box one side, and neutralization incasement portion is through connecting pipe and the inside intercommunication of box, neutralization box one side top is fixed with the intake pipe, and intake pipe one end stretches into neutralization incasement portion.

Preferably, the outer wall of the bottom of the box body is welded with four pillars in an annular array mode, an ash discharge pipe is fixed in the middle of the bottom end of the box body, and the ash discharge pipe is communicated with the interior of the box body through an ash discharge port formed in the middle of the bottom end of the box body.

Preferably, a fixing frame is fixed above the inside of the box body, the fixing frame is provided with a filter bag, an air guide pipe is fixed inside the box body above the fixing frame, the air guide pipe extends out of the box body, a spray head is fixed at the bottom of the air guide pipe, the spray head is communicated with the air guide pipe, and the spray head corresponds to an opening at the top end of the filter bag.

Preferably, a window is embedded in the middle of the front face of the box body.

Preferably, the top of box is fixed with the case lid through the hasp, and case lid upper surface one side is fixed with the blast pipe, and the blast pipe communicates with the box is inside.

Preferably, one end of the air inlet pipe is positioned below the interior of the neutralizing tank, and one end of the connecting pipe connected with the neutralizing tank is positioned above the interior of the neutralizing tank.

Preferably, a first cock is installed at a liquid inlet above one side of the front surface of the neutralization box, and a second cock is installed at a liquid outlet below one side of the front surface of the neutralization box.

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

1. the utility model removes the baffle of every two adjacent air chambers in the box body, reduces the number of the air chambers to a half, and increases the dust settling space; the filter bag with the length of 6 meters is lengthened to 8 meters, the filter area is enlarged by lengthening the filter bag, and the filter air speed is reduced. The air volume for dust collection treatment is increased from original 820000m3/h to 880000m3/h, the filtering air speed is reduced from original 1.15m3/min to 0.79m3/min, and the emission concentration of particulate matters at a dust collection outlet is reduced to below 10mg/Nm 3.

2. The utility model achieves the effect of neutralizing the discharged gas by configuring the corresponding neutralizing solution according to the pH value of the discharged gas by arranging the neutralizing tank. The utility model is provided with a neutralizing box, gas exhausted from the kiln tail enters the neutralizing box through an air inlet pipe, a neutralizing solution is correspondingly added into the neutralizing box according to the detected pH value of the exhausted gas, and the neutralizing solution is selected and used by technicians in the field. The gas entering from the gas inlet pipe is conveyed into the solution in the neutralizing tank, the gas performs a neutralization reaction in the neutralizing tank to enable the pH value of the gas to tend to be neutral, the gas discharged from the neutralizing tank enters the tank body through the connecting pipe, the gas further removes dust after passing through the filter bag, and the gas after dust removal is discharged from the gas exhaust pipe. The gas is neutralized into neutrality by the solution arranged in the neutralization box, so that the corrosion degree of the gas to the inner wall of the bag type dust collector is reduced.

Drawings

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic view of the connection structure of the case body in a front cross section;

FIG. 3 is an enlarged schematic view taken at A of FIG. 2 in accordance with the present invention;

FIG. 4 is a schematic view of the connection structure of the neutralization tank in front section according to the present invention.

In the figure: 1. a pillar; 2. an ash discharge pipe; 3. a box body; 4. a window; 5. an air duct; 6. a box cover; 7. an exhaust pipe; 8. a first cock; 9. a second cock; 10. a connecting pipe; 11. an air inlet pipe; 12. a neutralization tank; 13. a flat plate; 14. a filter bag; 15. a fixed mount; 16. and (4) a spray head.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1

Referring to fig. 1 to 3, an embodiment of the present invention includes: the utility model provides a kiln tail ultra-clean discharging equipment that gathers dust, includes

box

3, and 3 bottom outer walls of box are the welding of annular array and have four pillars 1, and four pillars 1 bottom contact ground support box 3. A fixing frame 15 is fixed above the inside of the box body 3, a filter bag 14 is installed on the fixing frame 15, an air guide pipe 5 is fixed inside the box body 3 above the fixing frame 15, the air guide pipe 5 extends out of the box body 3, and one end, extending out of the air guide pipe 5, of the air guide pipe 5 is connected with an air pump. The bottom of the air duct 5 is fixed with a spray head 16, the spray head 16 is communicated with the air duct 5, the spray head 16 corresponds to an opening at the top end of the filter bag 14, when the filter bag 14 is cleaned, an external air pump ventilates the air duct 5, and air is sprayed out from the spray head 16 to clean the filter bag 14. A box cover 6 is fixed to the top end of the box body 3 through a lock catch, an exhaust pipe 7 is fixed to one side of the upper surface of the box cover 6, the exhaust pipe 7 is communicated with the interior of the box body 3, and gas after dust removal through the filter bag 14 is discharged from the exhaust pipe 7. The middle of 3 bottoms of box is fixed with row ash pipe 2, arranges ash pipe 2 and communicates with 3 insides of box through the row's ash mouth of seting up in the middle of 3 bottoms of box, and the dust of filtering is discharged through arranging ash pipe 2.

A window 4 is embedded in the middle of the front face of the box body 3, and a worker can observe the condition in the box body 3 through the window 4.

Example 2

Referring to fig. 1 and 4, an embodiment of the present invention is shown: the utility model provides a kiln tail ultra-clean discharging equipment that gathers dust, including box 3 and

neutralization case

12, 3 one side below of box is fixed with dull and stereotyped 13, dull and stereotyped 13 upper surface and neutralization case 12 lower surface fixed connection, neutralization case 12 upper surface one side is fixed with connecting pipe 10, the one end that connecting pipe 10 and neutralization case 12 are connected is located the inside top of neutralization case 12, the one end that connecting pipe 10 deviates from neutralization case 12 is fixed with 3 one sides of box, neutralization case 12 is inside to be passed through connecting pipe 10 and the inside intercommunication of box 3. An air inlet pipe 11 is fixed above one side of the neutralizing box 12, one end of the air inlet pipe 11 extends into the neutralizing box 12, and one end of the air inlet pipe 11 is located below the inner part of the neutralizing box 12. The gas discharged from the kiln tail enters a neutralization tank 12 through an air inlet pipe 11, the gas entering from the air inlet pipe 11 is conveyed into the solution in the neutralization tank 12, the gas is subjected to neutralization reaction in the neutralization tank 12, the pH value of the gas tends to be neutral, and the gas discharged from the neutralization tank 12 enters a box body 3 through a connecting pipe 10. The gas is neutralized to be neutral by the solution arranged in the neutralization tank 12, so that the corrosion degree of the gas to the inner wall of the bag type dust collector is reduced.

A first cock 8 is arranged at the liquid inlet above one side of the front surface of the neutralization box 12, and a second cock 9 is arranged at the liquid outlet below one side of the front surface of the neutralization box 12. According to the detected pH value of the discharged gas, the first cock 8 is opened, and a neutralizing solution is correspondingly added into the neutralizing tank 12, wherein the neutralizing solution is selected by a technician in the field according to the pH value of the discharged gas; when the neutralizing solution in the neutralizing tank 12 is replaced, the second cock 9 is opened to discharge the neutralizing solution in the neutralizing tank 12.

The working principle is as follows: the partition plates of every two adjacent air chambers in the box body are removed, the number of the air chambers is reduced to a half, and the dust settling space is enlarged; the filter bag with the length of 6 meters is lengthened to 8 meters, the filter area is enlarged by lengthening the filter bag, and the filter air speed is reduced. The air volume for dust collection treatment is increased from original 820000m3/h to 880000m3/h, the filtering air speed is reduced from original 1.15m3/min to 0.79m3/min, and the emission concentration of particulate matters at a dust collection outlet is reduced to below 10mg/Nm 3.

The gas discharged from the kiln tail enters a neutralization tank 12 through an air inlet pipe 11, the gas entering from the air inlet pipe 11 is conveyed into the solution in the neutralization tank 12, the gas is subjected to neutralization reaction in the neutralization tank 12, the pH value of the gas tends to be neutral, and the gas discharged from the neutralization tank 12 enters a box body 3 through a connecting pipe 10.

The gas entering the box body 3 passes through the filter bag 14, and the gas after dust removal through the filter bag 14 is discharged from the exhaust pipe 7; the filtered dust is discharged through the dust discharge pipe 2.

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 invention may be embodied in other specific forms without departing from the spirit or essential attributes 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 kiln tail ultra-clean discharging equipment that gathers dust, includes box (3) and neutralizing box (12), its characterized in that: the utility model discloses a neutralization tank, including box (3), box (3) one side below is fixed with dull and stereotyped (13), dull and stereotyped (13) upper surface and neutralization tank (12) lower fixed surface are connected, neutralization tank (12) upper surface one side is fixed with connecting pipe (10), and the one end that connecting pipe (10) deviate from neutralization tank (12) is fixed with box (3) one side, and neutralization tank (12) are inside to be passed through connecting pipe (10) and the inside intercommunication of box (3), neutralization tank (12) one side top is fixed with intake pipe (11), and intake pipe (11) one end is stretched into neutralization tank (12) inside.

2. The kiln tail dust collection ultra-clean discharge device according to claim 1, characterized in that: the outer wall of the bottom of the box body (3) is welded with four supporting columns (1) in an annular array mode, an ash discharge pipe (2) is fixed in the middle of the bottom end of the box body (3), and the ash discharge pipe (2) is communicated with the interior of the box body (3) through an ash discharge port formed in the middle of the bottom end of the box body (3).

3. The kiln tail dust collection ultra-clean discharge device according to claim 1, characterized in that: the improved filter box is characterized in that a fixing frame (15) is fixed above the inner portion of the box body (3), a filter bag (14) is mounted on the fixing frame (15), an air guide pipe (5) is fixed inside the box body (3) above the fixing frame (15), the air guide pipe (5) extends out of the box body (3), a spray head (16) is fixed at the bottom of the air guide pipe (5), the spray head (16) is communicated with the air guide pipe (5), and the spray head (16) corresponds to an opening in the top end of the filter bag (14).

4. The kiln tail dust collection ultra-clean discharge device according to claim 1, characterized in that: and a window (4) is embedded in the middle of the front surface of the box body (3).

5. The kiln tail dust collection ultra-clean discharge device according to claim 1, characterized in that: the top of box (3) is fixed with case lid (6) through the hasp, and case lid (6) upper surface one side is fixed with blast pipe (7), and blast pipe (7) and box (3) inside intercommunication.

6. The kiln tail dust collection ultra-clean discharge device according to claim 1, characterized in that: one end of the air inlet pipe (11) is positioned below the inner part of the neutralizing tank (12), and one end of the connecting pipe (10) connected with the neutralizing tank (12) is positioned above the inner part of the neutralizing tank (12).

7. The kiln tail dust collection ultra-clean discharge device according to claim 1, characterized in that: a first cock (8) is installed at a liquid inlet above one side of the front surface of the neutralization box (12), and a second cock (9) is installed at a liquid outlet below one side of the front surface of the neutralization box (12).