A cross type air secondary break-drop wetting module for pre-wetting of emulsion explosive conveying belt

Abstract

The application discloses a kind of for emulsion explosive conveying belt pre-wetting crossing type air secondary broken drop humidification module, it is related to emulsion explosive production conveying equipment technical field, including module box, air secondary broken drop component and droplet state monitoring unit, the module box left and right sides are all set up with side opening, and the inside of side opening is equipped with conveying belt, and the conveying belt passes through from module box middle part horizontally.This kind of for emulsion explosive conveying belt pre-wetting crossing type air secondary broken drop humidification module adopts air secondary broken drop structure, cooperates segmented type spray assembly to form two-stage droplet processing mode, and U-shaped transition section is arranged in inner gas pipeline, can effectively prevent liquid back infiltration, avoid gas path blockage, high-speed airflow is sheared and broken to primary droplet, greatly reduces droplet particle size, and let refinement droplet evenly cover on the surface of conveying belt, completely solve the problem that traditional equipment droplet is thick, belt pre-wetting is uneven, and local liquid droplet leakage.

Description

Technical Field

[0001] This invention relates to the field of emulsion explosive production and conveying equipment technology, specifically a through-type air secondary drip breaking and humidification module for pre-humidifying emulsion explosive conveyor belts. Background Technology

[0002] In the production and conveying process of emulsion explosives, in order to improve the contact, adhesion, and spreading of the explosive material with the surface of the conveyor belt, it is often necessary to pre-wet the surface of the empty conveyor belt before the explosive material is officially fed. If the surface of the conveyor belt can be pre-wetted to a relatively uniform and moderate degree before entering the subsequent emulsion explosive feeding station, it will be beneficial to the stable progress of the subsequent process.

[0003] Existing belt pre-wetting structures typically employ direct spraying, where liquid is sprayed onto the belt surface via a spray pipe or nozzle. While this type of structure can achieve basic humidification, it still suffers from the following shortcomings in practical applications: when the droplets formed directly from the nozzle are large, they tend to form localized concentrated wetting on the belt surface, resulting in poor uniformity; larger droplets are prone to accumulating on the belt surface, with some liquid failing to adhere effectively and dripping off; even with baffles or homogenizing plates in existing structures, they can usually only provide simple buffering and dispersion of the sprayed liquid, making it difficult to actively reduce the droplet size. Summary of the Invention

[0004] The purpose of this invention is to provide a through-type air secondary droplet breaking and humidification module for pre-humidifying emulsion explosive conveyor belts, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a through-type air secondary droplet breaking and humidification module for pre-wetting the conveyor belt of emulsion explosives, comprising a module housing, an air secondary droplet breaking component, and a droplet state monitoring unit. The module housing has side openings on both the left and right sides, and a conveyor belt is installed inside the side openings. The conveyor belt passes horizontally through the middle of the module housing, and a segmented spray assembly is installed above the interior of the module housing for spraying primary droplets onto the upper surface of the conveyor belt. The air secondary droplet breaking component is located below the segmented spray assembly and above the conveyor belt, for secondary breaking of the primary droplets into finer droplets. Liquid receiving trays are provided on both sides below the conveyor belt, and a liquid collection trough is installed below the liquid receiving trays. A drain port and a return port are installed at the bottom of the liquid collection trough. The droplet state monitoring unit is located in the air secondary droplet breaking area corresponding to the air secondary droplet breaking component inside the module housing, for real-time acquisition of droplet state information.

[0006] Furthermore, both the drain port and the return port are connected to the liquid collection tank, and the liquid collection tank is distributed in a one-to-one correspondence with the liquid receiving tray.

[0007] Furthermore, an adjustable guide is installed between the two sets of liquid receiving trays, and the adjustable guide is wired to a servo motor.

[0008] Furthermore, a washable filter box is installed at one end of the return port, and a filter screen frame is provided inside the washable filter box.

[0009] Furthermore, the secondary air-droplet breaking assembly includes an internal air distribution pipeline and an internal droplet breaking nozzle. The internal air distribution pipeline is provided with a U-shaped transition section to prevent liquid from seeping back into the upstream air main pipeline. The internal droplet breaking nozzle is located on both sides of the primary droplet falling path and sprays high-speed air obliquely inward and downward toward the droplet movement area to achieve secondary droplet breaking.

[0010] Furthermore, the side openings on both sides of the module housing are provided with side opening anti-fog structures to prevent droplets and fine mist from escaping outward.

[0011] Furthermore, the adjustable guide is equipped with rotating shafts on both sides, and a guide groove is provided in the middle of the adjustable guide.

[0012] Furthermore, the cross-section of the guide channel is a frustum-shaped structure, and a corrugated pipe is installed at the bottom of the guide channel. A pull-out small collection box is installed below the corrugated pipe for temporary liquid storage and maintenance cleaning.

[0013] This invention provides a through-type air secondary de-drip humidification module for pre-humidifying emulsion explosive conveyor belts, which has the following beneficial effects: 1. This invention adopts a secondary air-based droplet-breaking structure, combined with a segmented spray assembly to form a two-stage droplet treatment mode. The internal air distribution pipeline is equipped with a U-shaped transition section, which can effectively prevent liquid backflow and avoid air path blockage. The high-speed airflow shears and breaks up the primary droplets, significantly reducing the droplet size and allowing the refined droplets to evenly cover the surface of the conveyor belt. This completely solves the problems of large droplets, uneven belt pre-wetting, and localized liquid accumulation and leakage in traditional equipment. At the same time, the side opening anti-fog structure is added to both sides of the box to prevent the escape of fog droplets. Combined with the anti-static box and explosion-proof electrical components, it is suitable for the high-risk production environment of emulsion explosives, improving the safety of equipment operation and the quality of pre-wetting operations from a structural level.

[0014] 2. This invention integrates a droplet state monitoring unit and a control unit to form a closed-loop intelligent control system. It can monitor droplet size, distribution, and other parameters in real time, and automatically adjust the liquid supply flow rate, air supply pressure, and flow rate to ensure a continuous and stable pre-humidification effect. The equipment is equipped with a receiving tray, a collection tank, adjustable guide components, and a servo motor, which can automatically switch between waste liquid discharge and return modes. The returned liquid is filtered through a detachable and washable filter box and filter screen for recycling. A pull-out small collection box facilitates daily cleaning and maintenance, reducing liquid resource waste, lowering production costs, and preventing waste liquid leakage and on-site pollution. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of a through-type air secondary droplet breaking and humidification module for pre-humidifying emulsion explosive conveyor belts according to the present invention. Figure 2 This is a three-dimensional structural diagram of a through-type air secondary droplet breaking and humidification module for pre-humidifying emulsion explosive conveyor belts according to the present invention. Figure 3 This is a schematic diagram of the module housing and air secondary droplet breaking and humidification component distribution structure of a through-type air secondary droplet breaking and humidification module for pre-humidifying emulsion explosive conveyor belts according to the present invention. Figure 4 This is a schematic diagram of the adjustable flow guide structure of a through-type air secondary droplet breaking and humidification module for pre-humidifying emulsion explosive conveyor belts according to the present invention. Figure 5 This is a schematic diagram of the detachable and washable filter box structure of a through-type air secondary drip breaking and humidification module for pre-humidifying emulsion explosive conveyor belts according to the present invention.

[0016] In the diagram: 1. Module housing; 2. Segmented spray assembly; 3. Secondary air droplet breaking component; 4. Liquid receiving tray; 5. Liquid collection tank; 6. Drain outlet; 7. Return outlet; 8. Pull-out small collection box; 9. Removable and washable filter box; 10. Filter screen frame; 11. Adjustable flow guide; 12. Servo motor; 13. Conveyor belt; 14. Side-opening anti-fog structure; 15. Internal air distribution pipeline; 16. Internal droplet breaking nozzle; 17. Droplet status monitoring unit; 18. Rotating shaft; 19. Flow guide channel; 20. Corrugated pipe. Detailed Implementation

[0017] The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of the invention.

[0018] like Figures 1-5As shown, a through-type air secondary droplet breaking and humidification module for pre-humidifying the conveyor belt of emulsion explosives includes a module housing 1, a segmented spray assembly 2, an air secondary droplet breaking component 3, a liquid receiving tray 4, a liquid collection tank 5, a liquid drain port 6, a return port 7, a pull-out small collection box 8, a detachable and washable filter box 9, a filter frame 10, an adjustable guide component 11, a servo motor 12, a conveyor belt 13, a side-opening anti-fog structure 14, an internal air distribution pipeline 15, an internal droplet breaking nozzle 16, a droplet status monitoring unit 17, a rotating shaft 18, a guide groove 19, and a corrugated pipe 20. The module housing 1 has side openings on both the left and right sides, and a conveyor belt 13 is installed inside the side openings. The conveyor belt 13 passes horizontally through the middle of the module housing 1, and a segmented spray assembly 2 is installed above the interior of the module housing 1 for spraying primary droplets onto the upper surface of the conveyor belt 13. The air secondary droplet breaking component 3 is located within the segmented spray assembly 2. Below the spray assembly 2 and above the conveyor belt 13, the air secondary droplet breaking component 3 is used to break the primary droplets into finer droplets. It includes an internal air distribution pipe 15 and an internal droplet breaking nozzle 16. The internal air distribution pipe 15 is provided with a U-shaped transition section to prevent liquid from seeping back into the upstream air main pipe. The internal droplet breaking nozzle 16 is set on both sides of the primary droplet falling path and sprays high-speed air obliquely inward and downward toward the droplet movement area to achieve secondary droplet breaking. The external injection pump liquid supply component delivers liquid to the segmented spray assembly 2 installed inside the module box 1 through the pipeline. The assembly is arranged with multiple spray units along the width direction of the conveyor belt 13 to continuously spray the primary droplets downward to complete the initial spraying operation. The air secondary droplet breaking component 3 is arranged below the segmented spray assembly 2 and above the conveyor belt 13 and consists of the internal air distribution pipe 15 and the internal droplet breaking nozzle 16. The external air supply component supplies compressed air to the internal air distribution pipeline 15. The pipeline is equipped with a U-shaped transition section, which can prevent liquid from seeping back into the upstream air main pipeline when the machine is stopped, and can also purge the liquid in the pipeline when the air supply is restarted to prevent pipeline contamination and blockage. The internal droplet breaking nozzles 16 are distributed on both sides of the primary droplet falling path, spraying high-speed airflow obliquely inward and obliquely downward.After the initial droplets fall into the secondary droplet-breaking zone, they are further broken up by the impact and shearing action of the high-speed airflow, forming finer droplets with smaller particle sizes. These droplets fall evenly onto the surface of the conveyor belt 13, achieving uniform pre-wetting of the entire belt. Liquid receiving trays 4 are installed on both sides below the conveyor belt 13, and a liquid collection trough 5 is installed below each liquid receiving tray 4. An adjustable guide 11 is installed between the two sets of liquid receiving trays 4, and the adjustable guide 11 is electrically connected to a servo motor 12. Rotating shafts 18 are installed on both sides of the adjustable guide 11, and a guide groove is formed in the middle of the adjustable guide 11. 19. The cross-section of the guide channel 19 is a frustum-shaped structure, and a corrugated pipe 20 is installed at the bottom of the guide channel 19. A pull-out small collection box 8 is installed below the corrugated pipe 20 for temporary liquid storage and maintenance cleaning. A drain port 6 and a return port 7 are installed at the bottom of the collection tank 5. A removable and washable filter box 9 is installed at one end of the return port 7. A filter screen frame 10 is installed inside the removable and washable filter box 9. Waste liquid flowing to the return port 7 will enter the removable and washable filter box 9 on the return pipeline. The box is equipped with a removable and washable filter screen frame 10, which can filter out impurities in the liquid. After filtration and purification, the liquid is returned to the supply pipeline for recycling, effectively saving water resources and reducing production costs. Both the drain port 6 and the return port 7 are connected to the collection tank 5, and the collection tank 5 is distributed one-to-one with the receiving tray 4. The droplet state monitoring unit 17 is located in the air secondary droplet breaking area corresponding to the air secondary droplet breaking component 3 inside the module housing 1, used to acquire droplet state information in real time. The droplet state monitoring unit 17 is installed in the air secondary droplet breaking area inside the housing, monitoring and refining the droplet size, size distribution, droplet density, droplet image, and other state data in real time, and transmitting the data to the control unit. The control unit is electrically connected to the droplet state monitoring unit 17, the external injection pump liquid supply component, and the external air supply component, respectively. Based on the monitoring results, it automatically adjusts the liquid supply flow rate, air supply pressure, and air supply flow rate, and can also be linked in a segmented manner when necessary. The spray assembly 2 and the air secondary droplet breaking component 3 adjust the zone parameters to keep the droplet state at the preset standard. Excess liquid that does not adhere to the surface of the conveyor belt 13 falls into the liquid receiving tray 4 below the belt. The liquid flows into the collection tank 5 along the inclined guide surface of the liquid receiving tray. The collection tank 5 is connected to the drain port 6 and the return port 7. The diversion area in the tank is equipped with an adjustable guide component 11, which is driven by the servo motor 12 to switch positions, thereby changing the liquid flow direction: it can guide the liquid to be discharged directly from the drain port 6, or it can guide it to the return port 7 to enter the recovery pipeline. The lower part of the module box 1 is equipped with a pull-out small collection box 8 for temporary collection of accumulated liquid. When temporarily draining liquid, the guide channel 19 in the adjustable guide component 11 is in the middle, so that the liquid can flow from the guide channel 19 through the corrugated pipe 20 to the pull-out small collection box 8, which also facilitates the daily maintenance and residual liquid cleaning of the equipment.

[0019] like Figure 2As shown, the side openings on both sides of the module housing 1 are equipped with side opening anti-fog structures 14 to prevent droplets and fine mist from escaping outwards. The overall structure adopts a through-type design, with the module housing 1 fixed on the conveyor frame. Side openings are opened on both sides of the housing, and the conveyor belt 13 passes horizontally through the middle of the housing. The equipment only performs pre-wetting operations on the empty belt. No emulsion explosives are placed inside the housing. The belt enters the module empty and proceeds to the subsequent workstation to receive explosives after pre-wetting. The side opening anti-fog structures 14 installed at the side openings of the housing can effectively prevent droplets and fine mist from drifting outwards, reducing liquid loss and on-site pollution. All electrical components of the entire equipment are explosion-proof, and the housing is made of anti-static material, eliminating dust accumulation and spark hazards.

[0020] In summary, this through-type air secondary droplet breaking and humidification module for pre-humidifying emulsion explosive conveyor belts firstly, based on... Figures 1-5The structure shown is a through-type structure in use. The module box 1 is fixed to the conveyor frame, with side openings on both sides. The conveyor belt 13 passes horizontally through the middle of the box. The equipment only pre-wets the empty belt. No emulsion explosives are placed inside the box. The belt enters the module empty and is pre-wetted before proceeding to the next workstation to receive explosives. Side opening anti-fog structures 14 are installed at the side openings of the box to effectively prevent droplets and fine mist from drifting outward, reducing liquid loss and on-site pollution. All electrical components of the equipment are explosion-proof, and the box is made of anti-static material, eliminating dust accumulation and spark hazards. The external injection pump liquid supply component supplies liquid to the segmented spray assembly 2 installed inside the module box 1 via pipelines. This assembly is distributed along the width of the conveyor belt 13. Multiple spray units are set up to continuously spray primary droplets downward to complete the initial spraying operation. The secondary air droplet breaking component 3 is arranged below the segmented spray assembly 2 and above the conveyor belt 13. It consists of an internal air distribution pipeline 15 and an internal droplet breaking nozzle 16. The external air supply component supplies compressed air to the internal air distribution pipeline 15. The pipeline is equipped with a U-shaped transition section, which can prevent liquid from seeping back into the upstream air main pipeline when the machine is stopped, and can also purge the liquid accumulated in the pipeline when the air supply is restarted to prevent pipeline contamination and blockage. The internal droplet breaking nozzles 16 are distributed on both sides of the primary droplet falling path, spraying high-speed airflow obliquely inward and obliquely downward. After the primary droplets fall into the secondary air-breaking zone, they are broken up again by the impact and shearing action of the high-speed airflow, forming finer droplets with smaller particle sizes. These droplets fall evenly onto the surface of the conveyor belt 13, achieving uniform pre-wetting of the entire belt. The droplet state monitoring unit 17 is installed inside the housing in the secondary air-breaking zone. It monitors the particle size, particle size distribution, droplet density, and droplet image of the finer droplets in real time and transmits the data to the control unit. The control unit is electrically connected to the droplet state monitoring unit 17, the external injection pump liquid supply component, and the external air supply component. Based on the monitoring results, it automatically adjusts the liquid supply flow rate, air supply pressure, and air supply flow rate. If necessary, it can also link the segmented spray assembly 2 and the secondary air-breaking component 3 to adjust the zoning parameters, so that the droplet state is always maintained at the preset standard. Excess liquid that does not adhere to the surface of the conveyor belt 13 falls into the liquid receiving tray 4 below the belt. The liquid flows into the collection tank 5 along the inclined guide surface of the liquid receiving tray.The collection tank 5 is connected to both the drain port 6 and the return port 7. An adjustable guide 11 is installed in the diversion area within the tank, driven by a servo motor 12 to change the liquid flow direction: it can guide the liquid directly out of the drain port 6 or guide it into the recovery pipeline via the return port 7. A pull-out small collection box 8 is installed at the bottom of the module housing 1 for temporary collection of accumulated liquid. During temporary drainage, the guide channel 19 in the adjustable guide 11 is positioned in the center, allowing the liquid to flow from the guide channel 19 through the corrugated pipe 20 to the pull-out small collection box 8. This also facilitates routine equipment maintenance and residual liquid cleaning. When the adjustable guide 11 rotates, the corrugated pipe 20 moves accordingly, and the waste liquid flowing towards the return port 7 enters the removable and washable filter box 9 on the return pipeline. The box is equipped with a removable and washable filter screen frame 10 to filter out impurities in the liquid. The filtered and purified liquid is then returned to the supply pipeline for recycling, effectively saving water resources and reducing production costs.

[0021] The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the invention to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical application of the invention, and to enable those skilled in the art to understand the invention and to design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A through-type air secondary droplet breaking and humidification module for pre-wetting emulsion explosive conveyor belts, comprising a module housing (1), an air secondary droplet breaking component (3), and a droplet state monitoring unit (17), characterized in that, The module housing (1) has side openings on both the left and right sides, and a conveyor belt (13) is installed inside the side openings. The conveyor belt (13) passes horizontally through the middle of the module housing (1), and a segmented spray assembly (2) is installed on the upper part of the module housing (1) to spray primary droplets onto the upper surface of the conveyor belt (13). The air secondary droplet breaking component (3) is located below the segmented spray assembly (2) and above the conveyor belt (13) to break the primary droplets into fine droplets. A liquid receiving tray (4) is provided on both sides below the conveyor belt (13), and a liquid collection tank (5) is installed below the liquid receiving tray (4). A drain port (6) and a return port (7) are installed at the bottom of the liquid collection tank (5). The droplet status monitoring unit (17) is located in the air secondary droplet breaking area corresponding to the air secondary droplet breaking component (3) inside the module housing (1) to obtain droplet status information in real time.

2. The through-type secondary air-based de-drip humidification module for pre-wetting emulsion explosive conveyor belts according to claim 1, characterized in that, Both the drain port (6) and the return port (7) are connected to the liquid collection tank (5), and the liquid collection tank (5) is distributed in a one-to-one correspondence with the liquid receiving plate (4).

3. A through-type secondary air-based de-drip humidification module for pre-humidifying emulsion explosive conveyor belts according to claim 1, characterized in that, An adjustable guide (11) is installed between the two sets of liquid receiving trays (4), and the adjustable guide (11) is wired to a servo motor (12).

4. A through-type secondary air-based de-drip humidification module for pre-humidifying emulsion explosive conveyor belts according to claim 1, characterized in that, A washable filter box (9) is installed at one end of the return port (7), and a filter screen frame (10) is provided inside the washable filter box (9).

5. A through-type secondary air-based de-drip humidification module for pre-wetting emulsion explosive conveyor belts according to claim 1, characterized in that, The air secondary droplet breaking component (3) includes an internal air distribution pipeline (15) and an internal droplet breaking nozzle (16). The internal air distribution pipeline (15) is provided with a U-shaped transition section to prevent liquid from seeping back into the upstream air main pipeline. The internal droplet breaking nozzle (16) is set on both sides of the primary droplet falling path and sprays high-speed air obliquely inward and obliquely downward toward the droplet movement area to achieve secondary droplet breaking.

6. A through-type secondary air-based de-drip humidification module for pre-wetting emulsion explosive conveyor belts according to claim 1, characterized in that, The module housing (1) has side opening anti-fog structures (14) on both sides to prevent droplets and fine mist from escaping outward.

7. A through-type secondary air-based de-drip humidification module for pre-humidifying emulsion explosive conveyor belts according to claim 1, characterized in that, The adjustable guide (11) has a rotating shaft (18) installed on both sides, and a guide groove (19) is provided in the middle of the adjustable guide (11).

8. A through-type secondary air-based de-drip humidification module for pre-wetting emulsion explosive conveyor belts according to claim 7, characterized in that, The cross section of the guide channel (19) is a frustum-shaped structure, and a corrugated pipe (20) is installed at the bottom of the guide channel (19). A pull-out small collection box (8) is installed below the corrugated pipe (20) for temporary liquid storage and maintenance cleaning.

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