Cleaning equipment for efficient treatment of boiler scaling

Abstract

The utility model discloses cleaning equipment for efficient treatment of boiler scaling, which relates to the technical field of cement kiln pipeline cleaning and comprises a waste heat recovery kiln, and a heat gathering mechanism is connected inside the waste heat recovery kiln. According to the cleaning equipment for efficient treatment of boiler scaling, a partition fan is installed in a waste heat recovery kiln, a pipe inserting opening is formed in the middle of the partition fan in a penetrating mode, meanwhile, a telescopic rod is connected to the front portion of the partition fan, and one end of the telescopic rod is connected to the inner front portion of the waste heat recovery kiln; when heat in the waste heat recovery kiln continuously enters, airflow impact can be generated, the separation channel fan moves backwards through impact and continuously retreats along with increase of the airflow of waste heat, and therefore the waste heat device area is enlarged, and a heat flow meter is installed on one side of the waste heat recovery kiln and can monitor the heat area separated by the separation channel fan. And the waste heat recovery kiln can be used for fully recovering the waste heat.

Description

Technical Field

[0001] The utility model relates to the technical field of cement kiln pipeline cleaning, in particular to cleaning equipment used for efficient treatment of boiler scaling. Background Art

[0002] A large amount of waste heat is generated during the cement production process, among which cement kiln waste heat is a high-temperature and high-pressure waste heat resource with a temperature of over 800°C. In order to make full use of this precious energy resource, reduce energy consumption and reduce environmental pollution, cement kiln waste heat boilers are widely used in cement companies. However, during the operation of cement kiln waste heat boilers, scaling problems will occur inside the boiler, which will seriously affect the thermal efficiency and safety of the boiler. Therefore, a cleaning equipment for efficient treatment of boiler scaling is proposed.

[0003] The existing referenceable Chinese utility model patent has a publication number of CN204902663U, which discloses a dry ice cleaning system for a waste heat boiler of a cement kiln waste heat power generation system. The dry ice cleaning system for a waste heat boiler of a cement kiln waste heat power generation system includes an evaporator pipe and a dry ice blasting machine. The evaporator pipe is a threaded pipe. The dry ice blasting machine includes a casing. The upper part of the casing is covered by a screen. An ice storage room and a control room are connected to the inside of the casing. The air inlet of the ice storage room is connected to the air inlet valve through a vibrating air pipe. The ice outlet of the ice storage room is connected to the ejector. The ejection port of the ejector extends to the outer wall of the evaporator pipe. Solid dry ice is stored in the ice storage room. The delivery amount of dry ice is controlled by the control room. The dry ice ejected by the ejector explosively cleans the dust attached to the inner wall of the evaporator pipe, and the cleaning effect of the attached dust is good.

[0004] During the use of the existing cleaning equipment for efficient treatment of boiler scaling, as the use time of the cement kiln waste heat boiler increases, scaling problems will occur inside the boiler. Scaling will reduce the heat transfer area of ​​the boiler, resulting in a decrease in thermal efficiency. It will also cause blockage of the boiler pipeline and uneven heating, thereby affecting the service life of the equipment. At the same time, the cement kiln will have insufficient heat devices during the waste heat recovery process. Insufficient heat devices cause the heat inside the cement kiln to be discharged slowly, and it cannot be fully discharged during discharge, which easily leads to partial heat waste and needs to be improved. Therefore, a technician in this field provides a cleaning equipment for efficient treatment of boiler scaling to solve the problems raised in the above background technology. Utility Model Content

[0005] The utility model aims to provide a cleaning device for efficient treatment of boiler scaling, so as to solve the problems of cleaning the inner wall scaling and fully utilizing the heat of the existing cleaning device for efficient treatment of boiler scaling proposed in the above background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A cleaning device for efficient treatment of boiler scaling, comprising a waste heat recovery kiln, wherein a heat gathering mechanism is connected to the interior of the waste heat recovery kiln, and a scaling removal mechanism inside the equipment is connected to the rear of the waste heat recovery kiln, wherein the heat gathering mechanism comprises: a partition fan connected to the interior of the waste heat recovery kiln, wherein a pipe opening for backward movement of the equipment is penetrated through the interior of the partition fan, and a moving handle is connected to the top of the partition fan, and a telescopic rod is connected to the front of the partition fan;

[0008] The internal scaling removal mechanism of the equipment includes: an ice sprayer connected to the rear of the waste heat recovery kiln, a spray pipe is connected to the midpoint of the top of the ice sprayer, a main pipe is connected to the front of the spray pipe, and connecting pipes are connected to the four sides of the main pipe, the outside of the connecting pipe is connected to an annular pipe for full surrounding, and the outside of the annular pipe is connected to an ice spray port for spraying dry ice.

[0009] Preferably, a heat flow meter is fixedly installed on the left side of the waste heat recovery kiln, and a kiln mouth is installed in front of the waste heat recovery kiln; the calorimeter monitors the heat flow inside the equipment.

[0010] Preferably, the kiln mouth comprises:

[0011] A heat inlet, which runs through the middle of the kiln mouth and is connected to a heat transfer pipe in front of the heat inlet;

[0012] A control valve is provided, wherein the control valve is located outside the rear of the heat transfer tube; and the kiln mouth is provided with a device for controlling heat.

[0013] Preferably, a main valve is installed at the connection between the main pipe and the spray pipe, and the main pipe is located at the inner midpoint of the waste heat recovery kiln, and the annular pipes are distributed on the four inner sides of the waste heat recovery kiln, the annular pipes divide the waste heat recovery kiln into three parts at equal intervals, and the main valve is located at the outer rear of the waste heat recovery kiln; the main valve can control whether ice is sprayed inside the waste heat recovery kiln.

[0014] Preferably, the front end of the telescopic rod is connected to the front of the waste heat recovery kiln, and the diameter of the pipe insertion port is 1.2 times larger than the diameter of the main pipe and the connecting pipe. The connecting pipes are distributed in a triangle with the midpoint of the main pipe; the pipe insertion port facilitates the backward movement of the partition fan.

[0015] Preferably, the heat transfer tube is connected in front of the heat inlet through a control valve, and the heat transfer tubes are at right angles to each other; the control valve can control whether heat is transferred in.

[0016] Preferably, the heat flow meter can monitor the waste heat area inside the waste heat recovery kiln, and the waste heat recovery kiln is barrel-shaped; the waste heat recovery kiln can store high temperature and recycle the heat.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] 1. This cleaning equipment for efficient treatment of boiler scaling is connected to an ice sprayer at the rear of the waste heat recovery kiln. Dry ice particles are installed inside the ice sprayer. The dry ice particles are transmitted through a spray pipe and a main pipe. The main pipe is located inside the waste heat recovery kiln. The dry ice inside the ice sprayer can be sprayed out inside the waste heat recovery kiln. The four sides of the main pipe are connected with connecting pipes. The outside of the connecting pipe is provided with an annular pipe and an ice spray port. The ice spray port is directly facing the inner wall of the waste heat recovery kiln. The dry ice inside the ice sprayer uses compressed air as a power and carrier to spray it on the inner wall of the waste heat recovery kiln. The dry ice particles are converted by energy such as sublimation and melting to quickly freeze the dirt, oil, residual impurities, etc. on the surface of the cleaned object, so that the scaling on the waste heat recovery kiln is condensed, embrittled, and peeled off, and is removed with the airflow. At the same time, it will not cause damage to the inner wall of the waste heat recovery kiln, nor will it affect the smoothness of the metal surface, and also extend the service life of the equipment;

[0019] 2. This cleaning equipment for efficient treatment of boiler scaling has a partition fan installed inside the waste heat recovery kiln, with a pipe opening inserted in the middle of the partition fan, and a telescopic rod connected to the front of the partition fan, one end of which is connected to the front of the waste heat recovery kiln. When heat from the inside of the waste heat recovery kiln continues to enter, air flow impact will be generated, and the partition fan will move backwards due to the impact, and will continue to retreat as the airflow of the waste heat increases, thereby expanding the installation area of ​​the waste heat, and a heat flow meter is installed on one side of the waste heat recovery kiln. The heat flow meter can monitor the heat area isolated by the partition fan, so that the waste heat recovery kiln can fully install the waste heat, prevent the waste heat from being dispersed inside the waste heat recovery kiln, and facilitate the rapid extraction of the waste heat at a later stage. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of a cleaning device for efficient treatment of boiler scaling in one embodiment of the utility model;

[0021] Figure 2 This is a schematic diagram of the structure of an ice sprayer for a cleaning device used for efficient treatment of boiler scaling in one embodiment of the utility model;

[0022] Figure 3 This is a schematic diagram of the structure of a waste heat recovery kiln for a cleaning device used for efficient treatment of boiler scaling in one embodiment of the utility model;

[0023] Figure 4 This is a schematic diagram of the kiln mouth structure of a cleaning device for efficient treatment of boiler scaling in one embodiment of the utility model.

[0024] 1. Waste heat recovery kiln; 11. Divider fan; 12. Pipe insertion port; 13. Moving handle; 14. Telescopic rod; 2. Kiln mouth; 21. Heat inlet; 22. Heat transfer pipe; 23. Control valve; 3. Ice sprayer; 31. Spray channel pipe; 32. Main pipe; 33. Main valve; 34. Ring pipe; 35. Ice spray port; 36. Connecting pipe; 4. Heat flux meter. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] Combined with Figure 1-Figure 4 In the present embodiment, a cleaning device for efficient treatment of boiler scaling includes a waste heat recovery kiln 1, the interior of the waste heat recovery kiln 1 is connected with a heat gathering mechanism, the rear of the waste heat recovery kiln 1 is connected with an internal scaling removal mechanism of the equipment, and the heat gathering mechanism includes: a partition fan 11 connected to the interior of the waste heat recovery kiln 1, the interior of the partition fan 11 is penetrated by a pipe insertion port 12, and the upper part of the partition fan 11 is connected with a moving handle 13, and the front of the partition fan 11 is connected with a telescopic rod 14; the front end of the telescopic rod 14 is connected to the front of the waste heat recovery kiln 1, and the diameter of the pipe insertion port 12 is 1.2 times larger than the diameter of the main pipe 32 and the connecting pipe 36, and the connecting pipe 36 is distributed in a triangle with the midpoint of the main pipe 32.

[0027] Specifically, a partition fan 11 is installed inside the waste heat recovery kiln 1. A pipe opening 12 runs through the interior of the partition fan 11, and the size and position of the pipe opening 12 and the connecting pipe 36 and the main pipe 32 are consistent. When heat continues to enter the waste heat recovery kiln 1, the partition fan 11 will continuously move backward through the heat flow rate and volume of the waste heat recovery kiln 1, thereby expanding the installation area inside the waste heat recovery kiln 1. At the same time, heat accumulates in the area separated by the partition fan 11, which is convenient for discharging the heat later.

[0028] A heat flow meter 4 is fixedly installed on the left side of the waste heat recovery kiln 1, and a kiln mouth 2 is installed in front of the waste heat recovery kiln 1; the kiln mouth 2 includes: a heat inlet 21, the heat inlet 21 runs through the middle of the kiln mouth 2, and a heat transfer pipe 22 is connected in front of the heat inlet 21; a control valve 23, the control valve 23 is located outside the rear of the heat transfer pipe 22; the heat transfer pipe 22 is connected in front of the heat inlet 21 through the control valve 23, and the heat transfer pipes 22 are at right angles; the heat flow meter 4 can monitor the waste heat area inside the waste heat recovery kiln 1, and the waste heat recovery kiln 1 is barrel-shaped.

[0029] Specifically, a kiln mouth 2 is installed in front of the waste heat recovery kiln 1, and the kiln mouth 2 is connected to the heat transfer pipe 22 through a control valve 23, so as to facilitate the transmission of heat generated in the cement manufacturing process.

[0030] The internal scaling removal mechanism of the equipment includes: an ice sprayer 3 connected to the rear of the waste heat recovery kiln 1, a spray channel pipe 31 is connected to the top midpoint of the ice sprayer 3, and a main pipe 32 is connected to the front of the spray channel pipe 31, and four sides of the main pipe 32 are connected to connecting pipes 36, the outside of the connecting pipe 36 is connected to an annular pipe 34, and the outside of the annular pipe 34 is connected to an ice spray port 35; a main valve 33 is installed at the connection between the main pipe 32 and the spray channel pipe 31, and the main pipe 32 is located at the inner midpoint of the waste heat recovery kiln 1, and the annular pipes 34 are distributed on the four sides of the interior of the waste heat recovery kiln 1, the annular pipe 34 divides the waste heat recovery kiln 1 into three parts at equal distances, and the main valve 33 is located at the outer rear of the waste heat recovery kiln 1.

[0031] Specifically, an ice sprayer 3 is connected to the rear of the waste heat recovery kiln 1, and the ice sprayer 3 is connected to the waste heat recovery kiln 1 through a main pipe 32, and the main pipe 32 is located in the middle of the waste heat recovery kiln 1. The main valve 33 is opened to allow the dry ice inside the ice sprayer 3 to be distributed to the ice spray port 35 through the spray channel pipe 31, the main pipe 32, the connecting pipe 36, and the annular pipe 34, thereby spraying the dry ice. According to the annular pipe 34 being equidistantly arranged inside the waste heat recovery kiln 1, and the large number of ice spray ports 35 being arranged facing the inner wall of the waste heat recovery kiln 1, the dry ice can be evenly sprayed on the inner wall of the waste heat recovery kiln 1, so that the scale residues on the inner wall of the waste heat recovery kiln 1 are quickly frozen, thereby condensing, embrittled, and peeled off, and at the same time removed with the airflow, so that the inner wall of the waste heat recovery kiln 1 is smooth, thereby improving the heat exchange efficiency of the equipment.

[0032] Working principle: First, a kiln mouth 2 is opened in front of the waste heat recovery kiln 1, and the kiln mouth 2 is connected to the heat transfer pipe 22 through a control valve 23. Heat is continuously installed inside the waste heat recovery kiln 1, and a partition fan 11 is installed at the front end of the interior of the waste heat recovery kiln 1. The partition fan 11 retreats due to the continuous increase in the heat volume inside the heat transfer pipe 22. At the same time, a dry ice spraying device is also installed inside the waste heat recovery kiln 1. Therefore, a pipe insertion port 12 is provided inside the partition fan 11. The diameter of the pipe insertion port 12 is slightly larger than the diameter of the main pipe 32 and the connecting pipe 36, so that the partition fan 11 can move backward after being impacted, thereby expanding the installation area of ​​the waste heat recovery kiln 1, and the heat inside the waste heat recovery kiln 1 can also be concentrated. A heat flux meter 4 is fixedly installed on the left side of the waste heat recovery kiln 1, and the heat flux meter 4 can 1 is used to monitor the heat inside the waste heat recovery kiln 1, so that the heat inside the waste heat recovery kiln 1 is fully installed to avoid heat dispersion. Finally, after the waste heat recovery kiln 1 has been used for a period of time, scaling is generated inside the equipment, which affects the heat exchange efficiency of the equipment and thus affects the service life of the equipment. Therefore, an ice sprayer 3 is connected to the rear of the waste heat recovery kiln 1. The ice sprayer 3 is connected through the main pipe 32 inside the waste heat recovery kiln 1, so that the dry ice inside the ice sprayer 3 is distributed to the ice spray port 35 through the spray channel pipe 31, the main pipe 32, the connecting pipe 36, and the annular pipe 34. The ice spray port 35 is facing the inner wall of the waste heat recovery kiln 1, and the dry ice can be fully sprayed on the inner wall of the waste heat recovery kiln 1, so that the scaling residues on the inner wall of the waste heat recovery kiln 1 are quickly frozen, thereby condensing, embrittled, and peeled off, and at the same time removed with the air flow, thereby increasing the service life of the equipment.

[0033] In this way, the entire use process of the cleaning equipment for efficient treatment of boiler scaling is completed.

[0034] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A cleaning device for efficient treatment of boiler scaling, comprising a waste heat recovery kiln (1), wherein the interior of the waste heat recovery kiln (1) is connected to a heat gathering mechanism, and the rear of the waste heat recovery kiln (1) is connected to an internal scaling removal mechanism of the equipment, characterized in that: The heat gathering mechanism comprises: a partition fan (11) connected to the interior of the waste heat recovery kiln (1), a pipe insertion port (12) passing through the interior of the partition fan (11), a moving handle (13) connected to the top of the partition fan (11), and a telescopic rod (14) connected to the front of the partition fan (11); The internal scaling removal mechanism of the equipment comprises: an ice sprayer (3) connected to the rear of the waste heat recovery kiln (1), a spray channel pipe (31) connected to the top midpoint of the ice sprayer (3), a main pipe (32) connected to the front of the spray channel pipe (31), and connecting pipes (36) connected to four sides of the main pipe (32), an annular pipe (34) connected to the outside of the connecting pipe (36), and an ice spray port (35) connected to the outside of the annular pipe (34).

2. A cleaning device for efficient treatment of boiler scaling according to claim 1, characterized in that: A heat flow meter (4) is fixedly installed on the left side of the waste heat recovery kiln (1), and a kiln opening (2) is installed in front of the waste heat recovery kiln (1).

3. The cleaning equipment for efficient treatment of boiler scaling according to claim 2 is characterized in that: The kiln mouth (2) comprises: A heat inlet (21), wherein the heat inlet (21) runs through the middle of the kiln mouth (2), and a heat transfer pipe (22) is connected in front of the heat inlet (21); A control valve (23) is located outside the rear of the heat transfer tube (22).

4. The cleaning equipment for efficient treatment of boiler scaling according to claim 1, characterized in that: A main valve (33) is installed at the connection between the main pipe (32) and the spray pipe (31), and the main pipe (32) is located at the inner midpoint of the waste heat recovery kiln (1), and the annular pipe (34) is distributed on the four sides of the interior of the waste heat recovery kiln (1), and the annular pipe (34) divides the waste heat recovery kiln (1) into three parts at equal distances, and the main valve (33) is located at the outer rear of the waste heat recovery kiln (1).

5. The cleaning equipment for efficient treatment of boiler scaling according to claim 1 is characterized in that: The front end of the telescopic rod (14) is connected to the front of the waste heat recovery kiln (1), and the diameter of the pipe insertion port (12) is 1.2 times larger than the diameters of the main pipe (32) and the connecting pipe (36), and the connecting pipe (36) is distributed in a triangular shape with the midpoint of the main pipe (32).

6. The cleaning equipment for efficient treatment of boiler scaling according to claim 3 is characterized by: The heat transfer pipe (22) is connected to the front of the heat inlet (21) via a control valve (23), and the heat transfer pipes (22) are at right angles to each other.

7. The cleaning equipment for efficient treatment of boiler scaling according to claim 2, characterized in that: The heat flow meter (4) can monitor the waste heat area inside the waste heat recovery kiln (1), and the waste heat recovery kiln (1) is in a cylindrical shape.

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