Soot blowing device for pulverized coal fired boiler furnace

Abstract

The utility model relates to the technical field of boiler furnace soot blowing, and discloses a pulverized coal boiler furnace soot blowing device which comprises a soot blowing gun body, a control console and a protective shell, an exhaust pipe is fixedly arranged at the upper end of a vacuum pump, a through groove is formed in the protective shell, a micro hydraulic rod is fixedly installed in a fixing box, and the micro hydraulic rod is fixedly connected with the control console. According to the sealing device, the two sets of miniature hydraulic rods push the two sets of sealing check blocks to be close to the middle of the through groove correspondingly, so that the through groove is sealed, and the sealing check blocks are fixed to the two sets of miniature hydraulic rods to be connected with the top end of the protection shell in a penetrating mode; vibration energy is transmitted to the nozzle through the fixing lantern ring, dust and impurities adhering to the inner wall of the nozzle are shaken off, meanwhile, gas at the nozzle is extracted through the vacuum pump, and therefore the falling dust and impurities are guided to enter the conveying pipe and effectively collected through the collecting bag.

Description

Technical Field

[0001] This utility model relates to the field of boiler furnace soot blowing technology, and in particular to a pulverized coal boiler furnace soot blowing device. Background Technology

[0002] A pulverized coal boiler is a type of boiler equipment that uses pulverized coal as fuel. It mainly consists of a furnace, burner, ignition device, etc. When the boiler heating surface is severely ash- or slag-accumulated, the steam temperature will drop, affecting the normal operation of the boiler. Soot blowing can effectively prevent slag and ash accumulation on the heating surface, keep the heating surface clean, and thus improve the heat transfer effect.

[0003] An existing pulverized coal boiler furnace soot blowing device (announcement number: CN214791185U) uses a vibrator, a fixed ring, and a protective ring to prevent the soot blowing gun from jamming and leaking steam. Although it can clean the dust and impurities accumulated at the soot blowing gun nozzle, the dust on the inner wall of the discharge ring is shaken off and discharged with the steam. This makes it difficult to handle the shaken-off dust, which can cause the dust and impurities to enter the air and disperse everywhere. If inhaled by nearby workers, it can cause serious harm to human health and reduce the safety of use. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a coal-fired boiler furnace soot blowing device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A soot blowing device for a pulverized coal boiler furnace includes a soot blowing gun body (1), a control console (2), and a protective shell (3). The protective shell (3) is fitted around the end of the soot blowing gun body (1) furthest from the control console (2). A nozzle (105) is fixedly installed at the end of the soot blowing gun body (1) near the protective shell (3). A mounting bracket (203) is fixedly installed at the bottom of the protective shell (3). A dust collection box (102) is fixedly installed on the mounting bracket (203). A vacuum pump (201) is installed on one side of the dust collection box (102). A delivery pipe (202) is provided between the air pump (201) and the dust collection box (102). An air extraction pipe (106) is fixedly provided at the upper end of the vacuum pump (201). A through groove (101) is provided on the protective shell (3). A fixing box (6) is fixedly provided at the top of the protective shell (3). A miniature hydraulic rod (4) is fixedly installed inside the fixing box (6). A sealing block (104) is fixedly installed on the output shaft of the miniature hydraulic rod (4). The output shaft of the miniature hydraulic rod (4) passes through and connects to the top of the protective shell (3).

[0007] As a further embodiment of this utility model, the sealing block (104) and the micro hydraulic rod (4) are symmetrically distributed inside the protective shell (3), the control console (2) is connected to the soot blowing gun body (1) by fasteners, and the end of the suction pipe (106) away from the vacuum pump (201) is connected through the top of the protective shell (3).

[0008] As a further embodiment of this utility model, a collection bag (301) is embedded in the dust collection box (102), and one end of the conveying pipe (202) is fixedly connected to the vacuum pump (201).

[0009] As a further embodiment of this utility model, the end of the vacuum pump (201) away from the delivery pipe (202) is connected through the dust collection box (102) and fixedly connected to the collection bag (301).

[0010] As a further embodiment of this utility model, a fixing collar (302) is sleeved on the outside of the nozzle (105), and a vibrator (303) is fixedly mounted on the top end of the fixing collar (302).

[0011] As a further embodiment of this utility model, a cabinet panel (103) is installed on the dust collection box (102) via a hinge, and an air outlet (5) is provided in the nozzle (105).

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] When cleaning the nozzles on the sootblowing gun body is required, an air extraction pipe, vacuum pump, conveying pipe, dust collection box, and collection bag are installed. When cleaning the dust clogging the nozzles, two sets of micro hydraulic rods push two sets of sealing blocks towards the center of the through groove to seal the through groove, thus preventing dust from overflowing and spreading during the cleaning process. The vibrating machine generates vibration energy on the fixing ring, and the fixing ring transmits the vibration energy to the nozzle, shaking off the dust and impurities adhering to the inner wall of the nozzle. At the same time, the vacuum pump extracts gas from the nozzle to guide the fallen dust and impurities into the conveying pipe, and finally into the dust collection box, where they are effectively collected by the collection bag, thereby improving the safety and convenience of using the sootblowing gun body. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of a pulverized coal boiler furnace soot blowing device proposed in this utility model;

[0015] Figure 2 This is a cross-sectional structural diagram of a pulverized coal boiler furnace soot blowing device proposed in this utility model;

[0016] Figure 3 This is an enlarged structural diagram of point A of a pulverized coal boiler furnace soot blowing device proposed in this utility model;

[0017] Figure 4 This is an enlarged structural diagram of section B of a pulverized coal boiler furnace soot blowing device proposed in this utility model;

[0018] In the diagram: 1. Main body of the soot blowing gun; 101. Through groove; 102. Dust collection box; 103. Cabinet panel; 104. Sealing block; 105. Nozzle; 106. Extraction pipe; 2. Control console; 201. Vacuum pump; 202. Delivery pipe; 203. Mounting bracket; 3. Protective shell; 301. Protective box; 302. Fixing collar; 303. Vibrator; 4. Miniature hydraulic rod; 5. Air outlet. Detailed Implementation

[0019] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0020] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" 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 an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] Reference Figures 1-4A soot blowing device for a pulverized coal boiler furnace includes a soot blowing gun body 1, a control console 2, and a protective shell 3. The protective shell 3 is sleeved on the end of the soot blowing gun body 1 away from the control console 2. A nozzle 105 is fixedly installed on the end of the soot blowing gun body 1 near the protective shell 3. A mounting bracket 203 is fixedly installed at the bottom of the protective shell 3. A dust collection box 102 is fixedly installed on the mounting bracket 203. A vacuum pump 201 is installed on one side of the dust collection box 102. A conveying pipe 202 is provided between the vacuum pump 201 and the dust collection box 102. An exhaust pipe 106 is fixedly installed at the upper end of the vacuum pump 201. A through groove 101 is opened on the protective shell 3. A fixing box 6 is fixedly installed at the top of the protective shell 3. A miniature hydraulic rod 4 is fixedly installed inside the fixing box 6. A sealing block 104 is fixedly installed on the output shaft of the miniature hydraulic rod 4. The output shaft of the miniature hydraulic rod 4 passes through and connects to the top of the protective shell 3. The sealing block 104 and the miniature hydraulic rod 4 are symmetrically distributed inside the protective shell 3.

[0023] In use, the two sets of miniature hydraulic rods 4 are opened simultaneously, causing the two sets of sealing blocks 104 to move closer to the center of the through groove 101, thus blocking and sealing the through groove 101. By starting the vibrator 303, vibration energy is generated on the fixing collar 302, and the fixing collar 302 transmits the vibration energy to the nozzle 105, shaking off the dust and impurities adhering to the inner wall of the nozzle 105. At the same time, the vacuum pump 201 is used to extract the gas at the nozzle 105, thereby guiding the fallen dust and impurities into the conveying pipe 202, and finally into the dust collection box 102. The dust is then effectively collected by the collection bag 301 to prevent the dust from overflowing and spreading during cleaning.

[0024] In this embodiment, the sealing block 104 and the micro hydraulic rod 4 are symmetrically distributed inside the protective shell 3. The control console 2 is connected to the body 1 of the soot blowing gun by fasteners. The end of the suction pipe 106 away from the vacuum pump 201 passes through and is connected to the bottom of the protective shell 3.

[0025] During use, the through groove 101 is blocked and sealed by two sets of sealing blocks 104, so that the cleaning nozzle is in a relatively sealed environment to prevent dust from shaking and entering the outside.

[0026] In this embodiment, a collection bag 301 is embedded in the dust collection box 102, and one end of the delivery pipe 202 is fixedly connected to the vacuum pump 201.

[0027] In use, the vacuum pump 201 generates negative pressure suction, which causes the suction pipe 106 to draw gas from the nozzle 105, thereby preventing dust and gas from spreading everywhere.

[0028] In this embodiment, the end of the vacuum pump 201 away from the delivery pipe 202 is connected through the dust collection box 102 and is fixedly connected to the collection bag 301.

[0029] In use, the fixing box 6 is used to protect the miniature hydraulic rod 4. Both the miniature hydraulic rod 4 and the sealing block 104 are provided with two sets.

[0030] In this embodiment, a fixing collar 302 is sleeved on the outside of the nozzle 105, and a vibrator 303 is fixedly mounted on the top of the fixing collar 302.

[0031] In use, the vibration energy is transmitted to the fixed collar 302 through the vibrator 303, and at the same time, the vibration energy is transmitted to the nozzle 105, thereby shaking off the dust and impurities adhering to the inner wall of the nozzle 105.

[0032] In this embodiment, a cabinet panel 103 is installed on the dust collection box 102 via a hinge, and an air outlet 5 is provided inside the nozzle 105.

[0033] When in use, dust and impurities are collected through the collection bag 301, and staff replace the collection bag 301 by opening the cabinet panel 103.

[0034] From the above description, it can be seen that the above embodiments of this utility model achieve the following technical effects: When the main body 1 of the soot blowing gun is in use, by activating two sets of micro hydraulic rods 4, the two sets of micro hydraulic rods 4 respectively push the two sets of sealing blocks 104 to move relative to each other, thereby blocking and sealing the through groove 101. Then, the vibrator 303 is activated to transmit vibration energy to the fixing collar 302, and at the same time, the vibration energy is transmitted to the nozzle 105 to shake off the dust and impurities adhering to the inner wall of the nozzle 105. Simultaneously, the vacuum pump 201 is turned on so that the air extraction pipe 106 extracts the gas scattered at the nozzle 105, which facilitates the guidance of the fallen dust and impurities into the conveying pipe 202, and finally into the dust collection box 102. Finally, the dust is effectively collected by the collection bag 301. The staff can open the cabinet 103 to replace the collection bag 301 later.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A soot blowing device for a pulverized coal boiler furnace, comprising a soot blowing gun body (1), a control console (2), and a protective shell (3), characterized in that: A protective shell (3) is fitted around the end of the soot blowing gun body (1) away from the control console (2). A nozzle (105) is fixedly installed on the end of the soot blowing gun body (1) near the protective shell (3). A mounting bracket (203) is fixedly installed at the bottom of the protective shell (3). A dust collection box (102) is fixedly installed on the mounting bracket (203). A vacuum pump (201) is installed on one side of the dust collection box (102). The vacuum pump (201) and the dust collection box (102) are connected. A delivery pipe (202) is provided between the vacuum pump (201), and an air extraction pipe (106) is fixedly provided at the upper end of the vacuum pump (201). A through groove (101) is provided on the protective shell (3). A fixing box (6) is fixedly provided at the top of the protective shell (3). A miniature hydraulic rod (4) is fixedly installed inside the fixing box (6). A sealing block (104) is fixedly installed on the output shaft of the miniature hydraulic rod (4), and the output shaft of the miniature hydraulic rod (4) passes through and connects to the top of the protective shell (3).

2. The pulverized coal boiler furnace soot blowing device according to claim 1, characterized in that, The sealing block (104) and the micro hydraulic rod (4) are symmetrically distributed inside the protective shell (3). The control console (2) is connected to the body of the soot blowing gun (1) by fasteners. The end of the suction pipe (106) away from the vacuum pump (201) is connected through the top of the protective shell (3).

3. The pulverized coal boiler furnace soot blowing device according to claim 2, characterized in that, A collection bag (301) is embedded in the dust collection box (102), and one end of the delivery pipe (202) is fixedly connected to the vacuum pump (201).

4. The pulverized coal boiler furnace soot blowing device according to claim 3, characterized in that, The end of the vacuum pump (201) away from the delivery pipe (202) is connected through the dust collection box (102) and is fixedly connected to the collection bag (301).

5. The pulverized coal boiler furnace soot blowing device according to claim 1, characterized in that, A fixing ring (302) is sleeved on the outside of the nozzle (105), and a vibrator (303) is fixedly mounted on the top of the fixing ring (302).

6. The pulverized coal boiler furnace soot blowing device according to claim 1, characterized in that, The dust collection box (102) is fitted with a cabinet panel (103) via a hinge, and the nozzle (105) has an air outlet (5).

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