Special ash removal device for desulfurization and denitrification integrated equipment

Abstract

The utility model provides a special deashing device for desulfurization and denitrification integrated equipment, which comprises a pyrolysis chamber and a tail pipe, one end of the tail pipe is provided with a mounting cavity, the other end of the tail pipe is provided with a slag outlet, the slag outlet is internally in threaded connection with a sealing plug, and a multi-stage electric push rod is arranged in the mounting cavity. The tail pipe cleaning device has the advantages that when cleaning work is carried out, the multi-stage electric push rod is started, the cleaning ring moves in the length direction of the tail pipe and cleans the inner wall of the tail pipe under pushing of the multi-stage electric push rod, crystal residues are separated from the inner wall of the tail pipe and pushed to the position of the residue discharging opening through the cleaning ring, the sealing plug is rotated to open the residue discharging opening, and the tail pipe is cleaned. And then the slag discharging opening is sealed through the sealing plug, and the multi-stage electric push rod is controlled to contract to drive the cleaning ring to reset. The cleaning ring is pushed by the electric push rod to clean the inner wall of the tail pipe, the cleaning effect can be effectively guaranteed, the tail pipe can be prevented from being damaged, and practicability is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of desulfurization and denitration, in particular to a special dust cleaning device for desulfurization and denitration integrated equipment. Background Art

[0002] The integrated sulfur and denitrification equipment is a device used to desulfurize and denitrify the flue gas generated during the sintering process. After the integrated desulfurization and denitrification equipment has been running for a period of time, the flue gas will crystallize and accumulate ash in the equipment, causing large operating resistance, high cost, increased ammonia spraying volume, and decreased desulfurization and denitrification efficiency.

[0003] For example, the dedicated dust cleaning device for CSCR desulfurization and denitration integrated equipment with publication number CN211726865U extends the lower end of the jet pipe into the CSCR desulfurization and denitration integrated equipment, opens the pulse valve, and instantly releases compressed air into the desulfurization and denitration equipment, generating a shock wave to clean up the crystallized dust in the equipment and ensure the normal operation of the equipment. However, it is difficult to ensure the comprehensiveness of the cleaning by using compressed gas to clean the crystallized dust in the equipment. It is very likely that the airflow will flow through the equipment, and the crystallized dust will still remain on the inner wall of the equipment. If the cleaning effect is improved by increasing the gas pressure to increase the gas impact force, the equipment itself may be damaged. For this reason, a dedicated dust cleaning device for desulfurization and denitration integrated equipment is proposed for improvement. Utility Model Content

[0004] The purpose of the present invention is to solve at least one of the above technical deficiencies.

[0005] To this end, one purpose of the utility model is to propose a dedicated dust cleaning device for integrated desulfurization and denitrification equipment to solve the problems mentioned in the background technology and overcome the shortcomings of the prior art.

[0006] In order to achieve the above-mentioned purpose, an embodiment of the utility model provides a dedicated cleaning device for desulfurization and denitration integrated equipment, including a pyrolysis chamber and a tail pipe, one end of the tail pipe is provided with a mounting cavity, the other end of the tail pipe is provided with a slag outlet, and the slag outlet is internally threadedly connected with a sealing plug;

[0007] A multi-stage electric push rod is arranged in the installation cavity, and the output end of the multi-stage electric push rod is fixedly connected to a mounting plate, a cleaning ring is fixedly connected to one side of the mounting plate, a connecting rod is fixedly connected to one side of the cleaning ring, an injection ring is fixedly connected to the end of the connecting rod, a plurality of nozzles are arranged on the side of the injection ring, an air pump is arranged at one end of the tail pipe, an air delivery pipe is arranged between the injection ring and the air pump, and a sealing ring is arranged between the installation cavity and the tail pipe.

[0008] Preferably, any of the above schemes is that the pyrolysis chamber is fixedly connected to the tail pipe via a flange, and the mounting cavity is coaxially arranged with the tail pipe.

[0009] Preferably, in any of the above schemes, the slag outlet is arranged on the bottom surface of one end of the tail pipe, and a rotating handle is arranged at the end of the sealing plug.

[0010] The above technical solution is adopted: the pyrolysis chamber is used for urea pyrolysis. The urea is first dissolved, then sprayed into the pyrolysis chamber after being atomized by the nozzle. The atomized droplets react with the flue gas in the pyrolysis chamber to achieve desulfurization and denitrification of the flue gas. When the urea solution cannot be atomized or the atomization is incomplete, the urea solution will adhere to the inner wall of the tail pipe. An installation cavity is set at one end of the tail pipe to provide installation space for structures such as multi-stage electric push rods. The slag outlet is used to discharge the residues cleaned by the cleaning structure out of the tail pipe, and the sealing plug is used to control the opening and closing of the slag outlet.

[0011] Preferably, in any of the above schemes, the multi-stage electric push rod is fixedly connected in the installation cavity and is arranged coaxially with the tail pipe.

[0012] Preferably, any of the above schemes is that the cleaning ring adopts a conical structure and there are a plurality of connecting rods.

[0013] The above technical solution is adopted: the multi-stage electric push rod is used to drive the mounting plate to move horizontally, and then drive the cleaning ring to move along the length direction of the tail pipe. The mounting plate provides a mounting platform for the cleaning ring. The cleaning ring should fit the inner wall of the tail pipe. Under the push of the multi-stage electric push rod, the cleaning ring moves along the length direction of the tail pipe and cleans the inner wall of the tail pipe, so that the crystallized residue is separated from the inner wall of the tail pipe and is pushed to the position of the slag discharge port by the cleaning ring so that the residue can be discharged later.

[0014] Preferably, any of the above schemes has a side surface of the jet ring that is inclined, and a plurality of the nozzles are evenly arranged along the circumference of the jet ring.

[0015] Preferably, in any of the above schemes, the air pump is arranged on the outside of the tail pipe, and the air delivery pipe is a flexible pipe.

[0016] The above technical solution is adopted: the connecting rod provides a mounting platform for the jet ring, and the jet ring provides a mounting platform for the nozzle. When cleaning, start the air pump, the gas is pumped into the air pipe from the outside, and enters the jet ring through the air pipe, and then sprayed out from the nozzle, acting on the inner wall of the tail pipe, disturbing the residue adhering to the inner wall of the tail pipe, and assisting the cleaning ring to perform cleaning work.

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

[0018] 1. The dedicated cleaning device for the integrated desulfurization and denitrification equipment is provided with an installation cavity, a multi-stage electric push rod, a mounting plate, a cleaning ring and other structures. When cleaning, the multi-stage electric push rod is started. Under the push of the multi-stage electric push rod, the cleaning ring moves along the length direction of the tail pipe and cleans the inner wall of the tail pipe, so that the crystallized residue is separated from the inner wall of the tail pipe and is pushed to the position of the slag discharge port by the cleaning ring. The sealing plug is rotated to open the slag discharge port to discharge the cleaned residue, and then the sealing plug is used to close the slag discharge port, and the multi-stage electric push rod is controlled to shrink to drive the cleaning ring to reset. The electric push rod pushes the cleaning ring to clean the inner wall of the tail pipe, which can effectively ensure the cleaning effect and avoid damaging the tail pipe itself, making it more practical.

[0019] 2. The dedicated cleaning device for the integrated desulfurization and denitrification equipment is equipped with an air pump, an air pipe, an injection ring, a nozzle and other structures. When cleaning, start the air pump, and the gas is pumped into the air pipe from the outside, and enters the injection ring through the air pipe, and then is ejected from the nozzle, acting on the inner wall of the tail pipe, disturbing the residue adhering to the inner wall of the tail pipe, and assisting the cleaning ring to perform the cleaning work, making the cleaning effect more outstanding and more efficient.

[0020] Additional aspects and advantages of the present invention will be given in part in the following description and in part will become apparent from the following description or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0023] Figure 2 For the utility model Figure 1 The structural diagram at A in the middle;

[0024] Figure 3 It is a structural schematic diagram of the cleaning ring position of the utility model.

[0025] In the figure: 1-pyrolysis chamber, 2-tail pipe, 3-installation cavity, 4-slag outlet, 5-sealing plug, 6-multi-stage electric push rod, 7-installation plate, 8-cleaning ring, 9-connecting rod, 10-jet ring, 11-nozzle, 12-air pump, 13-air pipe, 14-sealing ring. DETAILED DESCRIPTION

[0026] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0027] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] like Figures 1 to 3 As shown, the utility model comprises a pyrolysis chamber 1 and a tail pipe 2, one end of the tail pipe 2 is provided with a mounting cavity 3, the other end of the tail pipe 2 is provided with a slag outlet 4, and the slag outlet 4 is internally threadedly connected with a sealing plug 5;

[0029] A multi-stage electric push rod 6 is arranged in the installation cavity 3, and the output end of the multi-stage electric push rod 6 is fixedly connected to a mounting plate 7, a cleaning ring 8 is fixedly connected to one side of the mounting plate 7, a connecting rod 9 is fixedly connected to one side of the cleaning ring 8, an injection ring 10 is fixedly connected to the end of the connecting rod 9, and a plurality of nozzles 11 are arranged on the side of the injection ring 10, an air pump 12 is arranged at one end of the tail pipe 2, an air delivery pipe 13 is arranged between the injection ring 10 and the air pump 12, and a sealing ring 14 is arranged between the installation cavity 3 and the tail pipe 2.

[0030] Embodiment 1: The pyrolysis chamber 1 is fixedly connected to the tail pipe 2 through a flange, and the mounting cavity 3 is coaxially arranged with the tail pipe 2. The slag outlet 4 is arranged on the bottom surface of one end of the tail pipe 2, and a turning handle is arranged at the end of the sealing plug 5. The pyrolysis chamber 1 is used to perform urea pyrolysis. The urea is first dissolved, and then sprayed into the pyrolysis chamber after being atomized by a nozzle. The atomized droplets react with the flue gas in the pyrolysis chamber to achieve desulfurization and denitrification of the flue gas. When the urea solution cannot be atomized or the atomization is incomplete, the urea solution will adhere to the inner wall of the tail pipe 2. An mounting cavity 3 is arranged at one end of the tail pipe 2 to provide installation space for structures such as a multi-stage electric push rod 6. The slag outlet 4 is used to discharge the residue cleaned by the cleaning structure out of the tail pipe 2, and the sealing plug 5 is used to control the opening and closing of the slag outlet 4.

[0031] Embodiment 2: The multi-stage electric push rod 6 is fixedly connected in the mounting cavity 3 and is arranged coaxially with the tail pipe 2. The cleaning ring 8 adopts a conical structure, and there are several connecting rods 9. The multi-stage electric push rod 6 is used to drive the mounting plate 7 to move horizontally, and then drive the cleaning ring 8 to move along the length direction of the tail pipe 2. The mounting plate 7 provides an installation platform for the cleaning ring 8. The cleaning ring 8 should fit the inner wall of the tail pipe 2. Under the push of the multi-stage electric push rod 6, the cleaning ring 8 moves along the length direction of the tail pipe 2 and cleans the inner wall of the tail pipe 2, so that the crystallized residue is detached from the inner wall of the tail pipe 2 and is pushed to the position of the slag discharge port 4 by the cleaning ring 8, so that the residue can be discharged later.

[0032] Embodiment 3: The side of the jet ring 10 is inclined, and a plurality of nozzles 11 are evenly arranged along the circumference of the jet ring 10. The air pump 12 is arranged on the outside of the tail pipe 2, and the air pipe 13 is a flexible pipe. The connecting rod 9 provides an installation platform for the jet ring 10, and the jet ring 10 provides an installation platform for the nozzles 11. When cleaning, the air pump 12 is started, and the gas is pumped into the air pipe 13 from the outside, and enters the jet ring 10 through the air pipe 13, and then sprayed out from the nozzles 11, acting on the inner wall of the tail pipe 2, disturbing the residue adhering to the inner wall of the tail pipe 2, and assisting the cleaning ring 8 in cleaning.

[0033] The working principle of the utility model is as follows:

[0034] S1, start the multi-stage electric push rod 6 and the air pump 12. Under the push of the multi-stage electric push rod 6, the cleaning ring 8 moves along the length direction of the tail pipe 2 and cleans the inner wall of the tail pipe 2;

[0035] S2, gas is pumped into the gas delivery pipe 13 from the outside, and enters the jet ring 10 through the gas delivery pipe 13, and then is ejected from the nozzle 11, acting on the inner wall of the tail pipe 2, disturbing the residue adhering to the inner wall of the tail pipe 2, and assisting the cleaning ring 8 to perform cleaning work;

[0036] S3. The crystallized residue is separated from the inner wall of the tail pipe 2 and is pushed to the position of the slag discharge port 4 by the cleaning ring 8. The sealing plug 5 is rotated to open the slag discharge port 4 to discharge the cleaned residue. The sealing plug 5 is then used to close the slag discharge port, and the multi-stage electric push rod 6 is controlled to contract to drive the cleaning ring 8 to reset.

[0037] Compared with the prior art, the present invention has the following beneficial effects:

[0038] 1. The desulfurization and denitration integrated equipment special cleaning device is provided with a mounting cavity 3, a multi-stage electric push rod 6, a mounting plate 7, a cleaning ring 8 and other structures. When cleaning, the multi-stage electric push rod 6 is started. Under the push of the multi-stage electric push rod 6, the cleaning ring 8 moves along the length direction of the tail pipe 2 and cleans the inner wall of the tail pipe 2, so that the crystal residue is separated from the inner wall of the tail pipe 2 and is pushed to the position of the slag discharge port 4 by the cleaning ring 8. The sealing plug 5 is rotated to open the slag discharge port 4 to discharge the cleaned residue, and then the sealing plug 5 is used to close the slag discharge port, and the multi-stage electric push rod 6 is controlled to shrink to drive the cleaning ring 8 to reset. The electric push rod 6 pushes the cleaning ring 8 to clean the inner wall of the tail pipe 2, which can effectively ensure the cleaning effect and avoid damaging the tail pipe 2 itself, which is more practical.

[0039] 2. The dedicated cleaning device for the integrated desulfurization and denitrification equipment is provided with an air pump 12, an air pipe 13, an injection ring 10, a nozzle 11 and other structures. When cleaning is performed, the air pump 12 is started, and gas is pumped into the air pipe 13 from the outside, and enters the injection ring 10 through the air pipe 13, and then is ejected from the nozzle 11, acting on the inner wall of the tail pipe 2, disturbing the residue adhering to the inner wall of the tail pipe 2, and assisting the cleaning ring 8 in cleaning work, so that the cleaning effect is more outstanding and more efficient.

Claims

1. A dedicated ash cleaning device for integrated desulfurization and denitrification equipment, comprising a pyrolysis chamber (1) and a tail pipe (2); characterized in that: One end of the tail pipe (2) is provided with a mounting cavity (3), and the other end of the tail pipe (2) is provided with a slag outlet (4), and the slag outlet (4) is internally threadedly connected with a sealing plug (5); A multi-stage electric push rod (6) is arranged in the installation cavity (3), the output end of the multi-stage electric push rod (6) is fixedly connected to a mounting plate (7), one side of the installation plate (7) is fixedly connected to a cleaning ring (8), one side of the cleaning ring (8) is fixedly connected to a connecting rod (9), the end of the connecting rod (9) is fixedly connected to an injection ring (10), a side of the injection ring (10) is provided with a plurality of nozzles (11), one end of the tail pipe (2) is provided with an air pump (12), an air delivery pipe (13) is provided between the injection ring (10) and the air pump (12), and a sealing ring (14) is provided between the installation cavity (3) and the tail pipe (2).

2. A dedicated dust cleaning device for desulfurization and denitration integrated equipment according to claim 1, characterized in that: The pyrolysis chamber (1) is fixedly connected to the tail pipe (2) via a flange, and the installation cavity (3) is coaxially arranged with the tail pipe (2).

3. A dedicated dust cleaning device for desulfurization and denitration integrated equipment according to claim 2, characterized in that: The slag outlet (4) is arranged on the bottom surface of one end of the tail pipe (2), and a rotating handle is arranged at the end of the sealing plug (5).

4. A dedicated dust cleaning device for desulfurization and denitration integrated equipment according to claim 3, characterized in that: The multi-stage electric push rod (6) is fixedly connected in the installation cavity (3) and is coaxially arranged with the tail pipe (2).

5. A dedicated dust cleaning device for desulfurization and denitration integrated equipment according to claim 4, characterized in that: The cleaning ring (8) adopts a conical structure, and there are a plurality of connecting rods (9).

6. A dedicated dust cleaning device for desulfurization and denitration integrated equipment according to claim 5, characterized in that: The side surface of the jet ring (10) is an inclined surface, and a plurality of the nozzles (11) are evenly arranged along the circumference of the jet ring (10).

7. A dedicated dust cleaning device for desulfurization and denitration integrated equipment according to claim 6, characterized in that: The air pump (12) is arranged outside the tail pipe (2), and the air delivery pipe (13) is a flexible pipe.

Images