CN217877170U

CN217877170U - Cement waste heat power generation boiler

Info

Publication number: CN217877170U
Application number: CN202222141165.3U
Authority: CN
Inventors: 朱雄翔; 胡苏华; 周从滨; 李慧; 李波; 田芝国
Original assignee: Jiangxi Yushan South Cement Co ltd
Current assignee: Jiangxi Yushan South Cement Co ltd
Priority date: 2022-08-15
Filing date: 2022-08-15
Publication date: 2022-11-22
Anticipated expiration: 2032-08-15

Abstract

The utility model relates to a waste heat boiler technical field especially relates to a cement waste heat power generation boiler, and its technical scheme includes: the drain pan, fixed mounting has waste heat generating set in the drain pan, the intake pipe is installed in waste heat generating set one side below intercommunication, the outlet duct is installed in waste heat generating set opposite side top intercommunication, communicating pipe is installed in the one side intercommunication that the outlet duct lower surface deviates from waste heat generating set, communicating pipe bottom is equipped with the material collecting tank. The utility model solves the problem that the liquid sulfuric acid is easily corroded in the exhaust pipe.

Description

Cement waste heat power generation boiler

Technical Field

The utility model relates to a waste heat boiler technical field specifically is a cement waste heat power generation boiler.

Background

For a new dry method cement kiln, the kiln tail waste gas amount is large, the temperature is high, the waste gas temperature is generally about 310 ℃, the waste heat accounts for 15-18% of the total heat expenditure of a firing system, the kiln head waste gas also has the characteristics of large waste gas amount and high temperature, and the waste gas waste heat is fully utilized in order to avoid the waste of a large amount of heat at the kiln head and the kiln tail of a cement clinker production line and other parts generating the waste gas and the occurrence of high-temperature damage conditions of subsequent dust collectors and other equipment. The waste heat boiler mainly utilizes the heat of flue gas generated in various industrial processes, and hot water or steam can be produced by waste heat recovery to be supplied to other sections for use.

The search shows that: the Chinese utility model patent: publication No. CN203869522U discloses a boiler for generating electricity by passing through. The utility model provides a tunnel cave formula gangue brickmaking waste heat power generation boiler, is including setting up boiler, the convection bank that sets up in the inside both sides of tunnel cave and boiler intercommunication outside the tunnel cave gangue baked brick cooling zone top, setting up at tunnel cave heat preservation brickwork both sides downcomer and collection box respectively, boiler, convection bank, collection box, downcomer between form closed circulation intercommunication return circuit the boiler on the intercommunication have a main steam pipe seat, be equipped with catch water in the boiler that the main steam pipe seat corresponds, main steam pipe seat intercommunication has the over heater, the end of giving vent to anger of over heater is connected with generating set equipment. The utility model discloses convection tube heat transfer coefficient is high, and heat utilization rate is high, can in time absorb the solid sensible heat of gangue brick, reduces its surface temperature, has both shortened product production cycle, reaches energy saving and emission reduction's effect again, and the high temperature high pressure steam of output supplies generating set and life to use.

When CN203869522U in the prior art is used, liquid sulfuric acid can be formed when the temperature of the exhaust pipe of the waste heat power generation boiler is lower than the condensation point of sulfuric acid steam, if the liquid sulfuric acid is not discharged, the exhaust pipe can be corroded, and therefore a cement waste heat power generation boiler is needed to solve the problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a cement waste heat power generation boiler possesses the advantage that the liquid sulphuric acid that produces in the exhaust pipe carries out the collection, has solved liquid sulphuric acid and has formed the problem that causes the corruption to the blast pipe easily in the exhaust pipe.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a cement waste heat power generation boiler, includes top shell and drain pan, fixed mounting has waste heat generating set in the drain pan, the intake pipe is installed to waste heat generating set one side below intercommunication, the outlet duct is installed to waste heat generating set opposite side top intercommunication, communicating pipe is installed to one side intercommunication that the outlet duct lower surface deviates from waste heat generating set, communicating pipe bottom is equipped with the material collecting tank.

When the cement waste heat power generation boiler in the technical scheme is used, the material collecting tank is installed at the bottom end of the communicating pipe through the threaded sleeve, high-temperature flue gas at the tail of a kiln enters the waste heat power generation unit through the air inlet pipe and is discharged from the waste heat power generation unit through the air outlet pipe, the temperature of the high-temperature flue gas is reduced after the high-temperature flue gas passes through the waste heat power generation unit, sulfuric acid steam in the flue gas is condensed in the air outlet pipe and forms liquid sulfuric acid, and the liquid sulfuric acid flows into the material collecting tank and is periodically cleaned and recycled by an operator.

Preferably, a top shell is fixedly mounted above the bottom shell, the top shell is matched with the bottom shell in size, and bases are fixedly mounted on two sides of the lower surface of the bottom shell respectively. Through the top shell of installation on the drain pan to listen to when overhauing to open the top shell and can maintain the dismantlement to waste heat generating set.

Preferably, the upper surface of the waste heat generator set is not in contact with the inner wall of the top shell. The upper surface of the waste heat generator set is not contacted with the inner wall of the top shell, so that the top shell is convenient to open.

Preferably, one end of the air inlet pipe, which is far away from the waste heat generator set, penetrates through one side of the bottom shell and is communicated with a tail gas discharge pipe of the cement kiln. The air inlet pipe penetrates through the bottom shell and is communicated with a tail gas discharge pipe of the cement kiln, so that high-temperature flue gas can enter the waste heat generator set through the air inlet pipe and generate power through the waste heat generator set.

Preferably, one end of the air outlet pipe, which is far away from the waste heat generator set, is bent upwards by ninety degrees. The gas outlet pipe is bent upwards by ninety degrees, so that the liquid sulfuric acid can flow into the material collecting tank along the pipe wall.

Preferably, the fixed cover of material collecting tank outer wall is equipped with the thread bush, and thread bush outer wall top is equipped with outer silk screw thread, and the thread bush top is installed in communicating pipe bottom through outer silk screw thread. Through set up the thread bush on the material collecting tank to conveniently communicate the installation to material collecting tank and communicating pipe through the thread bush.

Compared with the prior art, the beneficial effects of the utility model are as follows:

the utility model discloses a set up the outlet duct and set up communicating pipe on the outlet duct, install the material collecting tank intercommunication in communicating pipe bottom through the thread bush to the sulphuric acid steam that makes along the outer row of outlet duct can be at the intraductal condensation of exhaust, and make the liquid sulphuric acid of condensation formation flow in the material collecting tank along the pipe wall, thereby reached the effect that the liquid sulphuric acid that produces in the exhaust duct carried out the collection.

Drawings

Fig. 1 is a schematic view of the structure of the present invention;

fig. 2 is a schematic front view of the present invention;

fig. 3 is a schematic view of the connection structure of the material collecting tank of the present invention.

In the figure: 1. a top shell; 2. a waste heat generator set; 3. an air outlet pipe; 4. a communicating pipe; 5. a material collecting tank; 6. a base; 7. a bottom case; 8. an air inlet pipe; 9. and (4) a threaded sleeve.

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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to 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 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.

Example one

As shown in fig. 1, fig. 2 and fig. 3, the present invention provides an embodiment: the utility model provides a cement waste heat power generation boiler, includes top shell 1 and drain pan 7, and fixed mounting has waste heat generating set 2 in the drain pan 7, and intake pipe 8 is installed to waste heat generating set 2 one side below intercommunication, and intake pipe 8 deviates from waste heat generating set 2's one end and passes and the installation with the tail gas discharge pipe intercommunication of cement kiln from drain pan 7 one side. Through passing intake pipe 8 bottom shell 7 and with the installation of the tail gas discharge pipe intercommunication of cement kiln to make high temperature flue gas accessible intake pipe 8 get into in the waste heat generating set 2 and generate electricity through waste heat generating set 2. An air outlet pipe 3 is communicated and installed above the other side of the waste heat generator set 2, and one end of the air outlet pipe 3, which is far away from the waste heat generator set 2, is bent upwards by ninety degrees. The gas outlet pipe 3 is bent upwards by ninety degrees, so that the liquid sulfuric acid can flow into the material collecting tank 5 along the pipe wall. Communicating pipe 4 is installed in the 3 lower surfaces of outlet duct intercommunication that deviate from waste heat generating

set

2, and 4 bottom communicating pipes are equipped with the aggregate jar 5. 5 outer wall fixed cover in aggregate jar is equipped with threaded

sleeve

9, and 9 outer wall tops of threaded sleeve are equipped with outer screw thread, and threaded sleeve 9 tops are installed in communicating pipe 4 bottom through outer screw thread. Through set up thread bush 9 on the material collecting tank 5 to conveniently communicate the installation to material collecting tank 5 and communicating pipe 4 through thread bush 9. Through setting up outlet duct 3 and set up communicating pipe 4 on outlet duct 3, install in 4 bottoms of communicating pipe 4 with the intercommunication of material collecting tank 5 through thread bush 9 to the sulphuric acid steam that makes along 3 outer rows of outlet duct can be in the exhaust duct condensation, and make the liquid sulphuric acid of condensation formation along the pipe wall flow in material collecting tank 5, thereby reached the liquid sulphuric acid that produces in the exhaust duct and carried out the effect of collecting.

Example two

As shown in fig. 1, fig. 2 and fig. 3, the present invention provides an embodiment: compared with the first embodiment, the cement waste heat power generation boiler further comprises a top shell 1 and a bottom shell 7, the top shell 1 is fixedly installed above the bottom shell 7, the top shell 1 is matched with the bottom shell 7 in size, and bases 6 are fixedly installed on two sides of the lower surface of the bottom shell 7 respectively. Through installation top shell 1 on drain pan 7 to listen to when overhauing and open top shell 1 and can maintain the dismantlement to waste heat generating set 2. And a waste heat generator set 2 is fixedly arranged in the bottom shell 7, and the upper surface of the waste heat generator set 2 is not contacted with the inner wall of the top shell 1. The upper surface of the waste heat generator set 2 is not contacted with the inner wall of the top shell 1, so that the top shell 1 is convenient to open.

The utility model discloses during the use, install material collecting tank 5 in 4 bottoms communicating pipe through thread bush 9, kiln tail high temperature flue gas passes through in 8 entering waste heat generating set 2 of intake pipe to discharge from waste heat generating set 2 through outlet duct 3, the high temperature flue gas reduces through 2 rear temperature of waste heat generating set, the sulphuric acid steam in the flue gas condenses and forms liquid sulphuric acid in the blast pipe, liquid sulphuric acid flows into material collecting tank 5 this moment in, and regularly clears up and retrieve by operating personnel.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention 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 cement waste heat power generation boiler, includes top shell (1) and drain pan (7), its characterized in that: fixed mounting has waste heat generating set (2) in drain pan (7), intake pipe (8) are installed to waste heat generating set (2) one side below intercommunication, outlet duct (3) are installed to waste heat generating set (2) opposite side top intercommunication, one side intercommunication that outlet duct (3) lower surface deviates from waste heat generating set (2) is installed communicating pipe (4), communicating pipe (4) bottom is equipped with the material collecting tank (5).

2. The cement waste heat power generation boiler according to claim 1, characterized in that: a top shell (1) is fixedly mounted above the bottom shell (7), the top shell (1) is matched with the bottom shell (7) in size, and bases (6) are fixedly mounted on two sides of the lower surface of the bottom shell (7) respectively.

3. The cement waste heat power generation boiler according to claim 1, characterized in that: the upper surface of the waste heat generator set (2) is not in contact with the inner wall of the top shell (1).

4. The cement waste heat power generation boiler according to claim 1, characterized in that: and one end of the air inlet pipe (8) departing from the waste heat generator set (2) penetrates through one side of the bottom shell (7) and is communicated with a tail gas discharge pipe of the cement kiln.

5. The cement waste heat power generation boiler according to claim 1, characterized in that: and one end of the air outlet pipe (3) departing from the waste heat generator set (2) is bent upwards by ninety degrees.

6. The cement waste heat power generation boiler according to claim 1, characterized in that: the outer wall of the material collecting tank (5) is fixedly sleeved with a threaded sleeve (9), outer threads are arranged on the top of the outer wall of the threaded sleeve (9), and the top of the threaded sleeve (9) is installed at the bottom end of the communicating pipe (4) through the outer threads.