CN211216129U

CN211216129U - Desulfurization and denitrification equipment for coal-fired furnace

Info

Publication number: CN211216129U
Application number: CN201922024038.3U
Authority: CN
Inventors: 朱琦
Original assignee: Xi'an Longyuan Petrochemical Equipment Co ltd
Current assignee: Xi'an Longyuan Petrochemical Equipment Co ltd
Priority date: 2019-11-21
Filing date: 2019-11-21
Publication date: 2020-08-11
Anticipated expiration: 2029-11-21

Abstract

The utility model discloses a SOx/NOx control equipment that coal fired furnace used, including tower body and fan, the tower body is connected with the heat transfer case through the connecting pipe, one side top position of heat transfer case is equipped with the intake pipe, one side bottom position of heat transfer case is equipped with the drain pipe, top one side position of heat transfer case is equipped with the inlet tube, the bottom of tower body is connected with circulating water tank, the top fixed mounting of tower body has the blast pipe, circulating water tank's inside fixed mounting has the filter screen, one side that circulating water tank's inside is located the filter screen is equipped with the lime stone, the opposite side fixed mounting that circulating water tank's inside is located the filter screen. A SOx/NOx control equipment that coal fired furnace was used, can effectual recovery waste gas waste heat, play resources are saved, practice thrift cost in business's effect, can react the filtration to the water after spraying simultaneously, increase circulating water SOx/NOx control's effect.

Description

Desulfurization and denitrification equipment for coal-fired furnace

Technical Field

The utility model relates to a SOx/NOx control equipment field, in particular to SOx/NOx control equipment that coal fired boiler used.

Background

The coal-fired furnace is a heat energy power device which heats heat medium water or other organic heat carriers (such as heat conduction oil and the like) to a certain temperature (or pressure) by burning the coal to release heat in a hearth; the existing desulfurization and denitration equipment for the coal-fired furnace does not have a waste heat recovery function, waste gas generated during combustion of coal has high temperature, waste heat in the waste gas cannot be recovered, resources are not saved, water after spraying cannot be treated, desulfurization and denitration effects are reduced easily during recycling, and scaling phenomenon is easy to occur.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main aim at provides a SOx/NOx control equipment that coal-fired furnace was used, can effectively solve do not possess waste heat recovery and can not carry out the problem handled to the water after spraying among the background art.

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

a desulfurization and denitrification device for a coal-fired furnace comprises a tower body and a fan, wherein the tower body is connected with a heat exchange box through a connecting pipe, an air inlet pipe is arranged at the top of one side of the heat exchange box, a water outlet pipe is arranged at the bottom of one side of the heat exchange box, a water inlet pipe is arranged at the position of one side of the top of the heat exchange box, a circulating water tank is connected with the bottom of the tower body, an exhaust pipe is fixedly arranged at the top of the tower body, a filter screen is fixedly arranged in the circulating water tank, limestone is arranged at one side of the inside of the circulating water tank, which is positioned at the filter screen, a water pump is fixedly arranged at the other side of the inside of the circulating water tank, a first net baffle is fixedly arranged at the bottom of the inside of the tower body, first filler is arranged at the upper part of the first filler, a first branch pipe is fixedly arranged, the upper portion of second net baffle is equipped with the second and packs, the inside top position fixed mounting that is located the second and packs of tower body has the second branch pipe, the bottom fixed mounting of first branch pipe has first shower nozzle, the inside fixed mounting of heat transfer case has the heat exchange tube, the bottom fixed mounting of second branch pipe has the second shower nozzle.

Preferably, the exhaust pipe is communicated with the fan through a guide pipe, and a main water pipe is connected between the first branch pipe and the water pump and between the second branch pipe and the water pump.

Preferably, one end of the heat exchange tube is communicated with the water inlet tube, and the other end of the heat exchange tube is communicated with the water drain tube.

Preferably, the heat exchange box is communicated with the tower body through the connecting pipe, and the upper surface of the circulating water tank is provided with a medicine feeding port.

Preferably, the bottom position that the inside of tower body is located first net baffle is equipped with the holding tank, holding tank and circulating water tank intercommunication.

Preferably, the heat exchange tube is spiral in shape, and the heat exchange box is coated with a heat insulation coating on the outside.

Compared with the prior art, the utility model discloses following beneficial effect has: the utility model discloses in, through the heat transfer case that sets up, people can pass through the inlet tube with water or other organic heat carriers and carry in the heat transfer pipe, when waste gas enters into the heat transfer incasement through the intake pipe, waste gas carries out the heat transfer with water, thereby increase the temperature of water, can preheat water or other organic heat carriers for people, the waste heat of waste gas has been fully utilized, resources are saved can be played, the effect of practicing thrift cost of enterprise, filter screen and lime stone through setting up, the source of lime is extensive, low price, can react with various acid waste water, eliminate calcium in the waste water, magnesium plasma, consequently, circulating water after spraying can react with the lime stone when the lime stone passes through, play the effect of purification, reduce the scale deposit phenomenon in the water pipe, also increase the SOx/NOx control effect of circulating water simultaneously.

Drawings

FIG. 1 is a schematic view of the overall structure of a desulfurization and denitrification apparatus for a coal-fired furnace according to the present invention;

FIG. 2 is a schematic diagram of the internal structure of a tower body of a desulfurization and denitrification facility for a coal-fired furnace according to the present invention;

FIG. 3 is the schematic diagram of the internal structure of the heat exchange box of the desulfurization and denitrification equipment for the coal-fired furnace.

In the figure: 1. a tower body; 2. a heat exchange box; 3. an air inlet pipe; 4. a water inlet pipe; 5. a drain pipe; 6. a circulating water tank; 7. an exhaust pipe; 8. a fan; 9. a filter screen; 10. limestone; 11. a water pump; 12. a main water pipe; 13. a first mesh partition plate; 14. a first filler; 15. a first branch pipe; 16. a second mesh partition; 17. a second filler; 18. a second branch pipe; 19. a first nozzle; 20. a second nozzle; 21. a heat exchange pipe; 22. and (4) connecting the pipes.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" 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 simplification of description, but do not indicate or imply that the device or element to which the reference is made 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, and for example, "connected" may be either fixedly connected or 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 meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1-3, a desulfurization and denitrification device for a coal-fired furnace comprises a tower body 1 and a fan 8, wherein the tower body 1 is connected with a heat exchange box 2 through a connecting pipe 22, an air inlet pipe 3 is arranged at the top of one side of the heat exchange box 2, a water outlet pipe 5 is arranged at the bottom of one side of the heat exchange box 2, a water inlet pipe 4 is arranged at one side of the top of the heat exchange box 2, a circulating water tank 6 is connected with the bottom of the tower body 1, an exhaust pipe 7 is fixedly arranged at the top of the tower body 1, a filter screen 9 is fixedly arranged inside the circulating water tank 6, limestone 10 is arranged inside the circulating water tank 6 at one side of the filter screen 9, a water pump 11 is fixedly arranged inside the circulating water tank 6 at the other side of the filter screen 9, a first screen partition plate 13 is fixedly arranged at the bottom of the inside, a first branch pipe 15 is fixedly arranged on the upper portion of a first filler 14 in the tower body 1, a second mesh partition plate 16 is fixedly arranged on the upper portion of the first branch pipe 15 in the tower body 1, a second filler 17 is arranged on the upper portion of the second mesh partition plate 16, a second branch pipe 18 is fixedly arranged on the upper portion of the second filler 17 in the tower body 1, a first spray nozzle 19 is fixedly arranged at the bottom of the first branch pipe 15, a heat exchange pipe 21 is fixedly arranged in the heat exchange box 2, and a second spray nozzle 20 is fixedly arranged at the bottom of the second branch pipe 18;

the exhaust pipe 7 is communicated with the fan 8 through a guide pipe, and a main water pipe 12 is connected between the first branch pipe 15 and the water pump 11 and between the second branch pipe 18 and the water pump 11; one end of the heat exchange tube 21 is communicated with the water inlet tube 4, and the other end of the heat exchange tube 21 is communicated with the water outlet tube 5; the connecting pipe 22 connects the heat exchange box 2 and the tower body 1, and the upper surface of the circulating water tank 6 is provided with a medicine feeding port which is convenient for people to add medicine; an accommodating groove is formed in the tower body 1 at the bottom of the first net partition plate 13 and communicated with the circulating water tank 6; the heat exchange tube 21 is spiral in shape, and the heat exchange box 2 is coated with a heat insulation coating on the outside.

It should be noted that, the utility model relates to a desulfurization and denitration device for coal furnace, when using, at first connect the exhaust emission pipe of coal furnace to the intake pipe 3, then connect the intake pipe 4 to the water pipe or other organic heat carriers, the heat carrier enters into the heat exchange tube 21, when waste gas enters into the heat exchange box 2 through the intake pipe 3, heat exchange with the heat carrier in the heat exchange tube 21, the heat carrier after heat exchange is discharged through the drain pipe 5, can supply people's waste heat carrier, play the effect of saving resources, reduce cost, waste gas enters into the heat exchange box 2 and then enters into the tower body 1 through the connecting pipe 22, receive the fan 8 to give the gravitation of exhaust pipe 7 through the pipe and slowly rise, simultaneously the water pump 11 works and carries the water with medicine through the main water pipe 12 to the first branch pipe 15 and the second branch pipe 18, then spout through the first shower nozzle 19 and the second shower nozzle 20, react with the flue gas that rises, first filler 14 and second filler 17 carry out SOx/NOx control to waste gas in the cooperation, gas after SOx/NOx control is inhaled by fan 8 through blast pipe 7, finally discharge in the air, water that sprays falls into the dead slot of tower body 1 after passing through second filler 17 and first filler 14, then fall into circulation tank 6 in, ooze around water pump 11 after the reaction filtration through lime stone 10, then carry through water pump 11 and carry the recycle in the main water pipe 12 once more.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A desulfurization and denitrification equipment for coal-fired furnaces is characterized in that: comprises a tower body (1) and a fan (8), wherein the tower body (1) is connected with a heat exchange box (2) through a connecting pipe (22), an air inlet pipe (3) is arranged at the top of one side of the heat exchange box (2), a water outlet pipe (5) is arranged at the bottom of one side of the heat exchange box (2), a water inlet pipe (4) is arranged at one side of the top of the heat exchange box (2), a circulating water tank (6) is connected with the bottom of the tower body (1), an exhaust pipe (7) is fixedly arranged at the top of the tower body (1), a filter screen (9) is fixedly arranged inside the circulating water tank (6), limestone (10) is arranged at one side of the filter screen (9) inside the circulating water tank (6), a water pump (11) is fixedly arranged at the other side of the filter screen (9) inside the circulating water tank (6), a first mesh partition plate (13), the upper portion of first net baffle (13) is equipped with first filler (14), the inside upper portion fixed mounting that is located first filler (14) of tower body (1) has first branch pipe (15), the inside top position fixed mounting that is located first branch pipe (15) of tower body (1) has second net baffle (16), the upper portion of second net baffle (16) is equipped with second filler (17), the inside top position fixed mounting that is located second filler (17) of tower body (1) has second branch pipe (18), the bottom fixed mounting of first branch pipe (15) has first shower nozzle (19), the inside fixed mounting of heat transfer case (2) has heat exchange tube (21), the bottom fixed mounting of second branch pipe (18) has second shower nozzle (20).

2. The desulfurization and denitrification facility for a coal-fired furnace according to claim 1, characterized in that: the exhaust pipe (7) is communicated with the fan (8) through a guide pipe, and a main water pipe (12) is connected between the first branch pipe (15) and the water pump (11) and between the second branch pipe (18) and the water pump (11).

3. The desulfurization and denitrification facility for a coal-fired furnace according to claim 1, characterized in that: one end of the heat exchange tube (21) is communicated with the water inlet tube (4), and the other end of the heat exchange tube (21) is communicated with the water discharge tube (5).

4. The desulfurization and denitrification facility for a coal-fired furnace according to claim 1, characterized in that: the heat exchange box (2) is communicated with the tower body (1) through the connecting pipe (22), and a medicine feeding opening is formed in the upper surface of the circulating water tank (6).

5. The desulfurization and denitrification facility for a coal-fired furnace according to claim 1, characterized in that: the bottom position that the inside of tower body (1) is located first net baffle (13) is equipped with the holding tank, holding tank and circulating water tank (6) intercommunication.

6. The desulfurization and denitrification facility for a coal-fired furnace according to claim 1, characterized in that: the heat exchange tube (21) is spiral in shape, and the heat exchange box (2) is coated with a heat insulation coating on the outer portion.