A fog gun machine for reducing coke shed dust raising

Abstract

The utility model relates to industrial dust treatment and atomization equipment technical field, and disclose a kind of for reducing coke greenhouse dust raising fog gun machine, including wind tube and the conical barrel of installation in the air outlet end of wind tube, still including cleaning groove, auxiliary atomization rod and elastic reset pull rod;The cleaning groove is opened in the end head part of the conical barrel, and rotating groove is equipped in its inside near port, and thread groove is equipped near inside;The auxiliary atomization rod is movably sleeved in the cleaning groove, and the auxiliary atomization rod includes auxiliary atomization disc in the outside of the cleaning groove.The utility model can make water flow be broken into smaller, more uniform distribution of fine mist droplet by the secondary centrifugal atomization of high-pressure water flow to high-speed rotating auxiliary atomization disc, significantly increase the total surface area of mist droplet, greatly improve the collision capture and wet wrapping efficiency of fine, hydrophobic dust in coke greenhouse, to obtain more optimal dust suppression effect.

Description

TECHNICAL FIELD

[0001] The utility model relates to industrial dust treatment and atomization equipment technical field, concretely is a kind of mist cannon machine for reducing coke greenhouse dust raising. BACKGROUND

[0002] In the field of industrial dust treatment, especially coke greenhouse dust raising control in coking industry, mist cannon machine has become the key equipment, and its core technology lies in that water is efficiently atomized and projected to dust source, and the prior art mainly follows two mainstream technical routes: one is high-pressure direct-injection atomization, which relies on precise high-pressure nozzle to directly break water into mist droplets, with simple structure and low cost, and is the most widely used scheme at present;Two is rotary centrifugal atomization, which uses motor to independently drive high-speed rotating disc, and water flow is torn apart by centrifugal force on disc surface, with finer and more uniform atomization particle size, higher theoretical dust suppression efficiency, and in addition, to cope with harsh environment, some designs will be equipped with openable protective cover for spray head.

[0003] However, under this specific working condition of coke greenhouse, both have significant defects. First, high-pressure direct-injection nozzle is prone to blockage, coke dust has the characteristics of fine particle size, certain hydrophobicity and adhesion, after shutdown, the humid spray hole is prone to adsorb dust and harden, and the spray hole is usually less than 1mm in diameter, so it is very difficult to clear, resulting in a sharp drop in equipment reliability. Secondly, although the independent rotary centrifugal atomizer has good atomization effect, it has complex structure, high failure rate and no self-cleaning ability, and its bearing and motor are directly exposed to high-dust and high-humidity environment, with greatly shortened service life and high maintenance cost. At the same time, the atomizing disc itself leaves water film after operation, which also becomes the matrix for dust adhesion and hardening. UTILITY MODEL CONTENTS

[0004] In view of the deficiencies of the existing mist cannon machine in the background art during use, the utility model provides a mist cannon machine for reducing coke greenhouse dust raising, which has the advantages of efficient secondary centrifugal atomization, automatic cleaning and protection of nozzle, and solves the technical problems raised in the above background art.

[0005] The utility model provides the following technical scheme: a kind of mist cannon machine for reducing coke greenhouse dust raising, including wind cylinder and the cone barrel of installation in the gas outlet end of wind cylinder, it further includes cleaning groove, auxiliary atomizing rod and elastic reset pull rod;The cleaning groove is opened in the end head part of the cone barrel, and rotating groove is arranged in the inside close to the port, and thread groove is arranged close to the inside;The auxiliary atomizing rod is movably sleeved in the cleaning groove, and the auxiliary atomizing rod includes auxiliary atomizing disc on the outside of the cleaning groove and threaded rod in the inside of the cleaning groove and engaged with the thread groove;The elastic reset pull rod is arranged in the inside of the cleaning groove, and one end is fixedly connected with the inner wall of the cleaning groove, and the other end is movably connected with the inside end portion of the auxiliary atomizing rod through movable connecting block.

[0006] Preferably, the side surface of the auxiliary atomization disc facing the conical barrel is provided with a flow guide spiral.

[0007] Preferably, the material of the flow guide spiral is soft rubber.

[0008] Preferably, when the auxiliary atomization rod is not impacted by water flow, the elastic reset pull rod pulls the auxiliary atomization rod to retract into the cleaning tank, and the threaded rod moves along the threaded groove.

[0009] Preferably, the air cylinder is fixedly installed with a shielding net plate on one side of the air inlet end for protection, and a cylinder fan is fixedly installed in the middle of the air cylinder for providing high-pressure airflow.

[0010] Preferably, a plurality of high-pressure nozzles are uniformly and fixedly arranged at the end of the conical barrel, an annular water supply pipe is fixedly arranged in the conical barrel, a plurality of water distribution pipe grooves are uniformly and communicatively arranged on one side of the annular water supply pipe, and the other end of the water distribution pipe groove is in communication with the high-pressure nozzle.

[0011] Preferably, the fog gun turret for adjusting the working angle of the fog gun is movably connected to the outside of the air cylinder and is fixedly connected through a mounting seat.

[0012] Preferably, when the high-pressure water flow impacts the auxiliary atomization disc, the auxiliary atomization rod can be driven to rotate, and the threaded rod can rotate and move out along the threaded groove until it moves to the rotating groove for free rotation.

[0013] The utility model has the following beneficial effects: 1. The utility model discloses a secondary centrifugal atomization device for high-pressure water flow, which can break the water flow into fine mist droplets with smaller particle size and more uniform distribution, significantly increase the total surface area of the mist droplets, greatly improve the collision capture and wet wrapping efficiency of the fine and hydrophobic dust in the coke shed, and obtain better dust suppression effect.

[0014] 2. The utility model discloses an auxiliary atomization rod driven by an elastic reset pull rod and matched with a threaded groove, which can automatically retract during shutdown, rotate and scrape the surface of the nozzle during the retraction process, automatically clean the nozzle after each work, effectively prevent the coke dust from being hardened and blocked due to moisture, and realize long-term and reliable operation without manual maintenance.

[0015] 3、The utility model discloses a water flow energy of starting and stopping of equipment itself is used as the only driving force, and the extension and rotation of the auxiliary atomization rod are controlled, two core functions of secondary atomization and self-cleaning can be integrated in a set of mechanical linkage mechanism and are automatically completed, the structure is simplified, the manufacturing cost is reduced, the failure of additional sensor or power source can be avoided, and the stability of the system in the harsh industrial environment is improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the whole structure schematic diagram of the utility model; Figure 2 It is the structure section structure schematic diagram of the utility model; Figure 3 It is the clean groove place structure partial enlargement schematic diagram of the utility model.

[0017] In the drawing: 1, the wind pipe; 11, the sheltering net plate; 12, the wind pipe fan; 2, the cone bucket; 3, the mounting seat; 31, the fog gun trolley; 4, the annular water supply pipe; 41, the water distribution pipe groove; 5, the auxiliary atomization rod; 51, the auxiliary atomization disc; 511, the flow guide spiral; 52, the screw rod; 6, the elastic reset pull rod; 61, the movable connecting block; 7, the clean groove; 71, the screw groove; 72, the rotation groove. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the utility model will be apparently and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the range protected by the utility model.

[0019] Please refer to Figures 1-2 A fog gun machine for reducing coke greenhouse dust, including the wind pipe 1 for providing airflow passage, the air inlet end of the wind pipe 1 side fixed installation has the sheltering net plate 11, the middle fixed installation of the wind pipe 1 has the wind pipe fan 12 for providing high pressure airflow, the air outlet end of the wind pipe 1 side fixed communication has the cone bucket 2 for reducing the caliber of airflow passage to increase airflow pressure, the end head part of the cone bucket 2 is uniformly fixed with several high pressure nozzles for spraying mist drop, the outer side of the wind pipe 1 is movably connected with the fog gun trolley 31 for adjusting the working angle of fog gun, and is fixedly connected with the mounting seat 3 through the fog gun trolley 31, the annular water supply pipe 4 is fixedly arranged in the cone bucket 2, the annular water supply pipe 4 side is uniformly communicated with several water distribution pipe grooves 41, and the other end of the water distribution pipe groove 41 is communicated with the high pressure nozzle.

[0020] Please refer to Figure 3The end part of the conical barrel 2 is provided with a cleaning groove 7 at the interval of the high-pressure nozzles, the cleaning groove 7 comprises a thread groove 71 close to the inner side and a rotating groove 72 close to the port, a supplementary atomizing rod 5 is movably sleeved in the cleaning groove 7, the supplementary atomizing rod 5 comprises a supplementary atomizing disc 51 fixedly connected to one end outside the cleaning groove 7 and a threaded rod 52 engaged with the thread groove 71 inside the cleaning groove 7, the supplementary atomizing rod 5 can be rotated and moved outward along the thread groove 71 through the threaded rod 52, and when the threaded rod 52 is located at the rotating groove 72, the supplementary atomizing rod 5 can be freely rotated along the axis thereof, the end part of the supplementary atomizing rod 5 is provided with a movable groove, and a movable connecting block 61 is movably connected through the movable groove, one end of the movable connecting block 61 is fixedly connected with an elastic reset pull rod 6, and the other end of the elastic reset pull rod 6 is fixedly connected to the inside of the cleaning groove 7, so that when not subjected to external force, the elastic reset pull rod 6 pulls the supplementary atomizing rod 5 to shrink into the cleaning groove 7, and the supplementary atomizing rod 5 is spirally shrunk into the thread groove 71 in the shrinking process, and the surface of the side of the supplementary atomizing disc 51 facing the conical barrel 2 is provided with a flow guide spiral 511 made of soft rubber.

[0021] When liquid is sprayed from the high-pressure nozzles, the water flow is sprayed to the supplementary atomizing disc 51, is rotated by the flow guide spiral 511 on the surface of the supplementary atomizing disc 51, and is rotated and moved outward along the thread groove 71 to pull the elastic reset pull rod 6 to be elongated, until the supplementary atomizing rod 5 is rotated and stretched to the position where the threaded rod 52 is located at the rotating groove 72, the supplementary atomizing rod 5 is only rotated by the water flow impelling the flow guide spiral 511 and no longer continues to be stretched outward, at this time, under the action of the strong centrifugal force of the rotating supplementary atomizing disc 51, the thin liquid film is radially laid out to the disc edge, and a very thin liquid film is formed, when the thin liquid film reaches the disc edge, the thin liquid film is separated in the form of a continuous liquid film, the surface tension makes the layer of film quickly shrink and break, liquid filaments and liquid drops are formed, and when the work of the fog gun machine is completed, the high-pressure water impact on the surface of the supplementary atomizing disc 51 is ended, the elastic reset pull rod 6 pulls the supplementary atomizing rod 5 to shrink and reset into the cleaning groove 7, and in the shrinking process, the threaded rod 52 is spirally rotated and shrunk by being limited by the thread groove 71, so that when the supplementary atomizing disc 51 is close to the nozzles, the flow guide spiral 511 sweeps the adhering particles on the surface of the nozzles, and with the shrinkage and resetting of the supplementary atomizing rod 5, the supplementary atomizing disc 51 blocks and protects the high-pressure nozzles on the two sides, so that dust is prevented from adhering to the wet nozzles during shutdown to cause blockage.

[0022] The working principle of the use method of the utility model is as follows: When in use, after the fog cannon machine is started, the high-pressure water flow is delivered to the high-pressure spray head at the end of the cone barrel 2 through the annular water supply pipe 4 and the water distribution pipe groove 41 and sprayed out. The water flow directly impacts the surface of the auxiliary atomizing disc 51. Because the side of the auxiliary atomizing disc 51 facing the water flow is provided with a guide flow spiral 511 at a specific angle, the impact force of the water flow is converted into a torque driving the auxiliary atomizing rod 5 to rotate. The auxiliary atomizing rod 5 rotates, and the threaded rod 52 inside the auxiliary atomizing rod 5 is engaged with the threaded groove 71 on the inner wall of the cleaning groove 7, so that the entire auxiliary atomizing rod 5 is screwed out along the axis while rotating. In this process, the elastic reset pull rod 6 fixed to the inner wall of the cleaning groove 7 is stretched through the movable connecting block 61 to store elastic potential energy. When the threaded rod 52 moves to the rotating groove 72 area at the port of the cleaning groove 7, it is disengaged from the spiral limit of the threaded groove 71 and enters a free rotation state.

[0023] In the free rotation state, the auxiliary atomizing disc 51 rotates at high speed under the continuous impact of the water flow. The water column sprayed from the high-pressure spray head is guided to the surface of the high-speed rotating auxiliary atomizing disc 51, and under the action of strong centrifugal force, the water immediately spreads radially to the edge of the disc to form an extremely thin liquid film. When the liquid film reaches the edge of the auxiliary atomizing disc 51, it will be detached in the form of a continuous liquid film, and then quickly shrink and break under the action of surface tension to form a large number of uniform and fine liquid filaments and droplets, thereby achieving a better secondary centrifugal atomization effect than direct spraying, producing smaller and more evenly distributed mist droplets for dust suppression.

[0024] When the fog cannon machine stops working, the high-pressure water flow stops, and the impact force on the auxiliary atomizing disc 51 disappears. At this time, the elastic reset pull rod 6 in the stretched state releases its stored elastic potential energy and pulls the auxiliary atomizing rod 5 inward into the cleaning groove 7 through the movable connecting block 61. In the initial stage of contraction, the threaded rod 52 re-engages with the threaded groove 71, forcing the auxiliary atomizing rod 5 to rotate while spirally retracting inward. During this spiral retraction process, the guide flow spiral 511 on the surface of the auxiliary atomizing disc 51 made of soft rubber material closely scrapes the surface of the high-pressure spray head on both sides like a scraper, physically removing dust particles that may have adhered around the spray hole during shutdown, achieving self-cleaning. Finally, the auxiliary atomizing rod 5 is completely retracted into the cleaning groove 7, and the auxiliary atomizing disc 51 is attached to the end face of the cone barrel 2, blocking and protecting the high-pressure spray head from dust entering and causing blockage, preparing for the next start.

[0025] It is to be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0026] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made therein without departing from the spirit and scope of the application, which is defined by the appended claims and their equivalents.

Claims

1. A fog cannon for reducing dust in coke ovens, comprising a duct (1) and a cone (2) installed at the outlet of the duct (1), characterized in that: It also includes a cleaning tank (7), an auxiliary atomizing rod (5), and an elastic reset lever (6); the cleaning tank (7) is located at the end of the cone (2), and has a rotating groove (72) near the port and a threaded groove (71) near the inner side; the auxiliary atomizing rod (5) is movably sleeved in the cleaning tank (7), and the auxiliary atomizing rod (5) includes an auxiliary atomizing disc (51) located outside the cleaning tank (7) and a threaded rod (52) located inside the cleaning tank (7) and meshing with the threaded groove (71); the elastic reset lever (6) is located inside the cleaning tank (7), one end of which is fixedly connected to the inner wall of the cleaning tank (7), and the other end is fixedly connected to a movable connecting block (61), and is movably connected to the inner end of the auxiliary atomizing rod (5) through the movable connecting block (61).

2. A fog cannon for reducing dust in coke ovens according to claim 1, characterized in that: The auxiliary atomizing disc (51) has a flow-guiding swirl pattern (511) on the side of the cone (2) facing the cone.

3. A mist cannon for reducing dust in coke ovens according to claim 2, characterized in that: The guide swirl (511) is made of soft rubber.

4. A mist cannon for reducing dust in coke ovens according to claim 1, characterized in that: When the auxiliary atomizing rod (5) is not subjected to the external force of water flow impact, the elastic reset lever (6) pulls the auxiliary atomizing rod (5) to retract into the cleaning tank (7) and causes the threaded rod (52) to move spirally along the threaded groove (71).

5. A mist cannon for reducing dust in coke ovens according to claim 1, characterized in that: A protective shielding mesh (11) is fixedly installed on one side of the air inlet end of the air duct (1), and an air duct fan (12) for providing high-pressure airflow is fixedly installed in the middle of the air duct (1).

6. A mist cannon for reducing dust in coke ovens according to claim 1, characterized in that: Several high-pressure nozzles are uniformly fixed at the end of the cone (2). An annular water supply pipe (4) is fixedly installed inside the cone (2). Several water distribution pipe grooves (41) are uniformly connected to one side of the annular water supply pipe (4). The other end of the water distribution pipe groove (41) is connected to the high-pressure nozzle.

7. A mist cannon for reducing dust in coke ovens according to claim 1, characterized in that: It includes a fog cannon rotating frame (31) for adjusting the working angle of the fog cannon. The fog cannon rotating frame (31) is movably connected to the outside of the air duct (1) and has a mounting base (3) fixedly connected to the top.

8. A mist cannon for reducing dust in coke ovens according to claim 1, characterized in that: When the high-pressure water flow impacts the auxiliary atomizing disc (51), it can drive the auxiliary atomizing rod (5) to rotate and cause the threaded rod (52) to rotate outward along the threaded groove (71) until it moves to the rotating groove (72) for free rotation.

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