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CN-121696058-B - Injection apparatus and flue gas denitration system for waste incineration

CN121696058BCN 121696058 BCN121696058 BCN 121696058BCN-121696058-B

Abstract

The application provides a spraying device and a flue gas denitration system for waste incineration, and belongs to the field of spraying equipment. The injection device comprises a fluid conveying power mechanism, a fluid conveying pipeline, a impurity removing mechanism and a nozzle. One end of the fluid conveying pipeline is communicated with the fluid conveying power mechanism, and the other end of the fluid conveying pipeline is communicated with the inlet end of the impurity removing mechanism. The outlet end of the impurity removing mechanism is communicated with the nozzle. The device can further reduce the blocking probability of the channel and improve the use stability and reliability.

Inventors

  • HUANG TAO

Assignees

  • 四川云华川科技有限公司

Dates

Publication Date
20260508
Application Date
20260212

Claims (7)

  1. 1. The injection device is characterized by comprising a fluid conveying power mechanism, a fluid conveying pipeline, a impurity removing mechanism and a nozzle; one end of the fluid conveying pipeline is communicated with the fluid conveying power mechanism, and the other end of the fluid conveying pipeline is communicated with the inlet end of the impurity removing mechanism; The outlet end of the impurity removing mechanism is communicated with the nozzle; The impurity removing mechanism comprises a control tube, a control rod, a filtering piece and a control cylinder; the two ends of the control tube are respectively sealed by a first sealing plate and a second sealing plate; the side wall of the control pipe is provided with an inlet and an outlet, the inlet is close to the first sealing plate, and the outlet is close to the second sealing plate; The inner wall of the control pipe is provided with a matching flange which continuously extends into a ring shape along the circumferential direction of the control pipe, the matching flange is positioned between the inlet and the outlet, and the inlet and the outlet are arranged at intervals with the matching flange; the filter piece is arranged in the control pipe and positioned at one side of the matching flange close to the flow inlet, and the filter piece is positioned between the flow inlet and the matching flange; the first sealing plate is provided with a slag discharge port; The control rod is arranged along the axial direction of the control tube and penetrates through the first sealing plate, the filter element and the second sealing plate, and is slidably matched with the first sealing plate, the filter element and the second sealing plate along the axial direction of the control tube, and the first sealing plate, the filter element and the second sealing plate are in sliding sealing with the control rod; The control rod is connected with a first core body, a second core body and a third core body; the control cylinder is arranged outside the control tube, one end of the control cylinder is closed by a third sealing plate, a first piston is slidably matched in the control cylinder, one end of the control cylinder, which is far away from the third sealing plate, is communicated with the control tube, and the position, at which the control tube is communicated with the control cylinder, is positioned at one side, close to the first sealing plate, of the filter element; A first elastic piece is abutted between the first piston and the third sealing plate; The first piston is connected with a first driving rod, the first driving rod is arranged along the axial direction of the control cylinder and penetrates through the third sealing plate, and the first driving rod is matched with the third sealing plate in a sliding manner; the control rod is provided with a first movement dead point and a second movement dead point; When the control rod is positioned at the first movement dead point, the first core body is matched with the slag discharging port and seals the slag discharging port, the flow inlet is opened, and the third core body is separated from the matched flange; when the control rod is positioned at the second movement dead point, the slag discharge port is opened, the second core body is matched with the inlet port and seals the inlet port, and the third core body is matched with the matched flange and blocks the control pipe; When the fluid pressure of one side of the filter element, which is close to the first sealing plate, is greater than or equal to a pressure threshold value, the first piston is pushed to the third sealing plate, and the first driving rod drives the control rod to enable the control rod to move from the first movement dead point to the second movement dead point.
  2. 2. The spraying device of claim 1, wherein the control tube is provided with a guide cylinder in communication therewith, the guide cylinder being located between the filter element and the first seal plate; The inner wall of the guide cylinder is provided with a first stop piece and a second stop piece, and the first stop piece and the second stop piece are arranged at intervals and are respectively arranged at two opposite ends of the guide cylinder; A second piston is slidably matched in the guide cylinder, and the second piston is positioned between the first stop piece and the second stop piece; the control tube is communicated with the control tube through one end, far away from the control tube, of the guide tube, and the area between the first piston and the second piston is filled with the same fluid as the fluid in the control tube.
  3. 3. The spraying apparatus of claim 2, wherein the impurity removing mechanism further comprises a base, a driver and a synchronizing bar; The base is provided with an installation cavity, and a sliding cavity is formed in the inner wall of one side of the installation cavity; The device comprises a mounting cavity, a guide groove, a sealing ring and a sealing sleeve, wherein the mounting cavity is internally provided with the guide groove; The control cylinder is arranged along the radial direction of the reference ring, one end of the control cylinder, which is far away from the third sealing plate, is fixedly connected with the sealing ring, and the sealing ring is provided with a communication hole for communicating the control cylinder with the diversion trench; The guide cylinder is communicated with the guide groove; The driver is fixedly arranged in the installation cavity, a power output shaft of the driver is connected with a rotary disc, the rotary disc is perpendicular to the power output shaft of the driver, and the rotary disc, the reference ring and the power output shaft of the driver are coaxially arranged; The rotary table is provided with a sliding rail arranged along the radial direction of the rotary table, and the sliding rail and the control cylinder are coaxially arranged; A third piston is slidably matched in the sliding cavity; One end of the synchronizing rod is matched with the sliding seat in a universal rotation mode, and the other end of the synchronizing rod is matched with the third piston in a universal rotation mode, so that the synchronizing rod can drive the third piston to reciprocate in the sliding cavity when the driver works; The end wall of one end of the sliding cavity, which is far away from the installation cavity, is provided with a first guide pipe; The first driving rod is fixedly connected with the sliding seat, a second driving rod is arranged on one side, close to the installation cavity, of the third piston, and the second driving rod is in transmission fit with the control rod; The filter piece is a filter plate and is also provided with an extension ring, the extension ring is connected to one side of the filter piece, which is close to the first sealing plate, and the extension ring is also provided with a filter hole; The inner wall of the control pipe is provided with water holes, a plurality of water holes are uniformly arranged at intervals along the circumferential direction of the control pipe, the water holes are shielded by the extension ring, and the water holes are communicated with the first guide pipe.
  4. 4. A spraying device as claimed in claim 3, in which the base further has a control lumen located on a side of the sliding chamber remote from the mounting lumen, the control lumen being spaced from the sliding chamber, the control lumen extending axially of the sliding chamber; A plug rod is fixedly connected to one side, close to the control inner cavity, of the third piston, and extends along the axial direction of the sliding cavity and penetrates into the control inner cavity; the plug rod is fixedly connected with the first sliding part, and a second elastic part is abutted between the first sliding part and the end wall of the control inner cavity, which is far away from the sliding cavity, of the control inner cavity; A redundant groove is formed in one side, close to the installation cavity, of the third piston, and the redundant groove extends along the axial direction of the sliding cavity; a fourth piston is slidably matched in the redundant groove, and one end of the synchronizing rod, which is far away from the sliding seat, is universally and rotatably matched with the fourth piston; a diversion channel is formed in the bottom of the redundant groove, extends in the third piston and extends to the surface of one side, close to the installation inner cavity, of the third piston; the control pipe is further provided with a flushing pipe, one end of the flushing pipe extends into the control pipe and faces the filter element, the flushing pipe is located at one side, away from the first sealing plate, of the filter element, and the other end of the flushing pipe is communicated with the flow guide channel.
  5. 5. The spraying device of claim 4, wherein the base is provided with a transmission rod slidably engaged with the base in an axial direction of the sliding chamber; the transmission rod is in transmission fit with the control rod; the transmission rod is provided with a first sliding dead point and a second sliding dead point, when the transmission rod is positioned at the first sliding dead point, the control rod is positioned at the first movement dead point, and when the transmission rod is positioned at the second sliding dead point, the control rod is positioned at the second movement dead point; the second driving rod is provided with a first pushing part and a second pushing part; When the first piston is attached to one end of the control cylinder, which is far away from the third sealing plate, the first pushing part can push the transmission rod to the first sliding dead point; When the fluid pressure of one side of the filter element, which is close to the first sealing plate, is greater than or equal to a pressure threshold, the first driving rod drives the sliding seat to be far away from the control cylinder, and the second pushing part can push the transmission rod to the second sliding dead point.
  6. 6. The spraying device of claim 5, wherein the second drive rod has a buffer lumen extending axially of the second drive rod; The second sliding part is in sliding fit with the buffer inner cavity, the second sliding part is fixedly connected with a positioning rod, the positioning rod extends along the axial direction of the second driving rod and penetrates through one end, close to the fourth piston, of the second driving rod, and the positioning rod is fixedly connected with the fourth piston; and a third elastic piece is abutted between the second sliding piece and the end wall of the buffer inner cavity, which is close to one end of the fourth piston.
  7. 7. A flue gas denitration system for waste incineration, which is characterized by comprising a flue gas denitration device body and the spraying device as claimed in any one of claims 1 to 6; the spraying device is used for conveying ammonia water into the air passage of the flue gas denitration device body.

Description

Injection apparatus and flue gas denitration system for waste incineration Technical Field The application relates to the field of spraying equipment, in particular to a spraying device and a flue gas denitration system for garbage incineration. Background Spray devices are widely used in a variety of applications including, but not limited to, agriculture, environmental remediation, industrial waste gas treatment, chemical production, and the like. In the actual use process, the normal use of the injection equipment is often influenced by the problem of channel blockage, and even if impurity removal and filtration treatment is carried out on the injection fluid in advance, the problem of channel blockage still cannot be avoided. In view of this, the present application has been proposed. Disclosure of Invention A first object of the present application is to provide an ejector device capable of further reducing the probability of a passage being blocked, improving the use stability and reliability. The second object of the application is to provide a flue gas denitration system for waste incineration, which can further reduce the blocking probability of an ammonia water channel and improve the stability and reliability of a denitration process. Embodiments of the present application are implemented as follows: An injection device comprises a fluid conveying power mechanism, a fluid conveying pipeline, a impurity removing mechanism and a nozzle. One end of the fluid conveying pipeline is communicated with the fluid conveying power mechanism, and the other end of the fluid conveying pipeline is communicated with the inlet end of the impurity removing mechanism. The outlet end of the impurity removing mechanism is communicated with the nozzle. Further, the impurity removing mechanism comprises a control tube, a control rod, a filter element and a control cylinder. The two ends of the control tube are respectively sealed by a first sealing plate and a second sealing plate. The lateral wall of control tube has seted up inlet and discharge opening, and the inlet is close to first shrouding setting, and the discharge opening is close to the setting of second shrouding. The inlet is communicated with the fluid conveying pipeline, and the outlet is communicated with the nozzle. The inner wall of the control tube has a fitting flange that extends continuously in a ring shape in the circumferential direction of the control tube. The matching flange is positioned between the inlet and the outlet, and the inlet and the outlet are arranged at intervals with the matching flange. The filter is arranged in the control pipe and positioned at one side of the matching flange close to the inlet, and the filter is positioned between the inlet and the matching flange. The first sealing plate is provided with a slag discharging port. The control rod is arranged along the axial direction of the control tube and penetrates through the first sealing plate, the filtering piece and the second sealing plate, and is slidably matched with the first sealing plate, the filtering piece and the second sealing plate along the axial direction of the control tube, and the first sealing plate, the filtering piece and the second sealing plate are in sliding sealing with the control rod. The control rod is connected with a first core, a second core and a third core. The control section of thick bamboo is located outside the control tube, and the one end of control section of thick bamboo is sealed by the third shrouding, and sliding fit has first piston in the control section of thick bamboo, and the one end that the control section of thick bamboo kept away from the third shrouding communicates with the control tube, and the position that control tube and control section of thick bamboo communicate is located the one side that the filter is close to first shrouding. A first elastic piece is abutted between the first piston and the third sealing plate. The first piston is connected with a first driving rod, the first driving rod is arranged along the axial direction of the control cylinder and penetrates through the third sealing plate, and the first driving rod is matched with the third sealing plate in a sliding mode. The first driving rod is in transmission fit with the control rod. The control lever has a first motion dead point and a second motion dead point. When the control rod is positioned at the first movement dead point, the first core body is matched with the slag discharging port and seals the slag discharging port, the flow inlet is opened, and the third core body is separated from the matched flange. When the control rod is positioned at the second movement dead point, the slag discharging port is opened, the second core body is matched with the inlet port and seals the inlet port, and the third core body is matched with the matched flange and blocks the control pipe. When the fluid pressure on the side of the filter element near th