Granular ammonium nitrate feeding device for on-site mixed loading explosive truck

Abstract

The utility model discloses a granular ammonium nitrate feeding device for an on-site mixed loading explosive truck, which comprises a feed box, a support frame is fixedly arranged on the periphery of the feed box, a discharge port is arranged at the lowest point of the feed box, and a discharge mechanism is arranged outside the discharge port. The discharging mechanism comprises a discharging cover plate covering the discharging port and a plurality of sets of driving connecting rods and driven connecting rods, one end of each driven connecting rod is hinged to one end of the corresponding driving connecting rod in the same set, the other end of each driven connecting rod is hinged to the discharging cover plate, the other end of each driving connecting rod is vertically and fixedly connected with an operating rod, and the operating rod is fixedly connected with the discharging port. The two ends of the operating rod are rotationally connected with the supporting frame in a shaft hole positioning mode, and the operating rod is perpendicularly and fixedly connected with a plurality of operating handles. The device has the advantages of being simple in structure, free of maintenance, convenient to use, low in energy consumption, small in equipment investment and the like.

Description

Technical Field

[0001] This utility model relates to the technical field of feeding devices. More specifically, this utility model relates to a feeding device for granular ammonium nitrate used in on-site mixing explosives vehicles. Background Technology

[0002] The on-site mixing and loading granular ammonium nitrate explosive truck is a special type of equipment used for mixing and loading ammonium nitrate explosives on-site in mines. The truck carries porous granular ammonium nitrate and diesel fuel as raw materials. Generally, there are two methods for feeding porous granular ammonium nitrate. One method involves using a forklift to lift the ton bags of porous granular ammonium nitrate to the feeding hopper. After the bags are broken, the porous granular ammonium nitrate flows into the hopper and is then lifted by an elevator to the storage tank in the feeding tower for storage. When loading the raw materials, the explosive truck is parked directly below the storage tank in the feeding tower, and the discharge electric push valve is opened, allowing the porous granular ammonium nitrate to flow into the ammonium nitrate hopper of the explosive truck under gravity. The other method involves using a forklift in conjunction with a feeding screw. First, the explosive truck is parked below the discharge port of the feeding screw. The forklift lifts the ton bags of porous granular ammonium nitrate to above the bottom hopper of the screw. After the bags are broken, the porous granular ammonium nitrate flows into the hopper, and the motor drives the screw to transport the porous granules to the top discharge port of the screw, thus entering the ammonium nitrate hopper of the explosive truck. Both of the above methods require a forklift to add porous granular ammonium nitrate to the hopper, and then an electric elevator or electric screw conveyor to lift the ammonium nitrate. Finally, the porous granular ammonium nitrate is loaded onto the truck. This process requires not only a forklift but also electricity. Existing technology, such as the utility model patent with authorization announcement number CN209065791U, discloses an ammonium nitrate feed hopper, which has a rotating shaft, turntable, and drive motor installed in the discharge chute. This also relies on electricity, and cannot operate when there is a power outage in the plant area. Furthermore, the equipment requires regular maintenance and needs improvement. Utility Model Content

[0003] This utility model provides a granular ammonium nitrate feeding device for on-site mixing of explosives, which has the advantages of simple structure, maintenance-free operation, convenient use, low energy consumption, and small equipment investment.

[0004] To achieve these objectives and other advantages according to this utility model, a granular ammonium nitrate feeding device for on-site mixing explosives is provided, comprising a material box, a supporting frame fixedly arranged around the material box, a discharge port at the lowest point of the material box, a feeding mechanism installed outside the discharge port, the feeding mechanism including a feeding cover plate covering the discharge port, and multiple sets of active and passive connecting rods, one end of each passive connecting rod being hinged to one end of a corresponding active connecting rod in the same set, the other end of each passive connecting rod being hinged to the feeding cover plate, and a control lever being vertically fixed to the other end of each active connecting rod, the two ends of the control lever being rotatably connected to the supporting frame through shaft hole positioning, and multiple control handles being vertically fixed to the control lever.

[0005] Preferably, the bottom of the material box is provided with a conical part, the discharge port is close to the bottom end of one side of the support frame and is flush with one side wall of the support frame, and an inclined discharge channel is connected between the bottom end of the conical part and the discharge port.

[0006] Preferably, the support frame includes multiple vertical support rods fixed to the outer periphery of the material box, and the bottom ends of the multiple vertical support rods are vertically fixed to a base. A lifting hole is provided on one side of the base for the fork arm of a forklift to be matched and inserted.

[0007] Preferably, each of the vertical support rods adjacent to both ends of the control lever is provided with a shaft hole, and each end of the control lever is provided with a shaft portion. The end of the shaft portion and the opening of the shaft hole are provided with matching rounded corners. The shaft portion and the shaft hole adopt a transition fit, and the shaft portion and the shaft hole are axially positioned by means of a pin connection. The center line of the shaft portion and the shaft hole coincides.

[0008] Preferably, the discharge port is also provided with a discharge hopper, which includes a vertically connected bottom plate and two side guard plates.

[0009] Preferably, the discharge port is close to the base, and the bottom plate of the discharge hopper is inclined to one side of the base.

[0010] Preferably, the discharge hopper and the lifting hole are located on opposite sides of the base.

[0011] Preferably, each active link is a linear structure, each driven link is an arc-shaped structure, each driven link is hinged to the outer bottom end of the discharge cover, and the operating lever is located above the discharge port.

[0012] Preferably, each set of active and driven links, and each driven link and the discharge cover plate are hinged with anti-loosening nuts.

[0013] This utility model has at least the following beneficial effects: The granular ammonium nitrate feeding device for on-site mixed explosives trucks described in this utility model only requires one forklift to cooperate with, and the feeding process can be completed without the need for electric energy. It has the advantages of simple structure, maintenance-free, convenient use, low energy consumption, and small equipment investment. It can be used for feeding porous granular ammonium nitrate in on-site mixed granular ammonium nitrate explosives trucks, as well as for feeding porous granular ammonium nitrate in on-site mixed heavy ammonium nitrate explosives trucks.

[0014] Other advantages, objectives and features of this invention will be partly apparent from the following description, and partly understood by those skilled in the art through study and practice of this invention. Attached Figure Description

[0015] Figure 1 This is a front view of the on-site mixing explosive vehicle granular ammonium nitrate feeding device described in one of the technical solutions of this utility model;

[0016] Figure 2 This is a rear view of the on-site mixing explosives vehicle granular ammonium nitrate feeding device described in one of the technical solutions of this utility model;

[0017] Figure 3 This is a left view of the on-site mixing explosive vehicle granular ammonium nitrate feeding device described in one of the technical solutions of this utility model;

[0018] Figure 4 This is a left cross-sectional view of the on-site mixing explosive vehicle granular ammonium nitrate feeding device described in one of the technical solutions of this utility model. Detailed Implementation

[0019] The present invention will now be described in further detail with reference to the accompanying drawings, so that those skilled in the art can implement it based on the description.

[0020] It should be understood that terms such as “having,” “comprising,” and “including” as used herein do not exclude the presence or addition of one or more other elements or combinations thereof.

[0021] It should be noted that, unless otherwise specified, the experimental methods described in the following embodiments are conventional methods, and the reagents and materials described are commercially available. In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "setting" should be interpreted broadly. For example, they can refer to fixed connection or setting, detachable connection or setting, or integral connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. The terms "lateral," "longitudinal," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description. They 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, and therefore should not be construed as a limitation of this utility model.

[0022] like Figure 1-4As shown, this utility model provides a granular ammonium nitrate feeding device for on-site mixing explosives vehicles, including a material box 100. A support frame 101 is fixedly arranged around the material box 100. A discharge port 102 is opened at the lowest point of the material box 100. A feeding mechanism 103 is installed outside the discharge port 102. The feeding mechanism 103 includes a feeding cover plate 104 covering the discharge port 102, and multiple sets of active connecting rods 105 and driven connecting rods 106. One end of each driven connecting rod 106 is hinged to one end of the corresponding active connecting rod 105 in the same set. The other end of each driven connecting rod 106 is hinged to the feeding cover plate 104. The other end of each active connecting rod 105 is vertically fixed to an operating lever 107. The two ends of the operating lever 107 are rotatably connected to the support frame 101 through shaft hole positioning. Multiple operating handles 108 are vertically fixed to the operating lever 107.

[0023] In the above technical solution, the on-site mixing explosives vehicle granular ammonium nitrate feeding device mainly includes a material box 100, around which a support frame 101 is fixedly installed. The material box 100, as the main structure for storing granular ammonium nitrate, is made of high-quality materials to ensure it can withstand the weight and pressure of the explosive raw materials, while also possessing good sealing performance to prevent the raw materials from getting damp or contaminated. The support frame 101 is cleverly fixedly installed around the material box 100; this structure not only enhances the overall stability of the material box 100 but also provides a solid foundation for the installation of other components. The entire device can be made of 304 stainless steel to improve its stability. A discharge port 102 is opened at the lowest point of the material box 100. This design allows the granular ammonium nitrate to be smoothly discharged when needed without manual handling or dumping, greatly improving work efficiency. The size and shape of the discharge port 102 are precisely calculated to ensure that the raw materials can flow out smoothly and evenly, avoiding blockages or accumulation. To precisely control the opening and closing of the discharge port 102, a discharge mechanism 103 is installed at the discharge port 102. This mechanism mainly consists of a discharge cover plate 104, multiple sets of active connecting rods 105, and driven connecting rods 106. The active connecting rods 105 and driven connecting rods 106 are parallel to each other. The discharge cover plate 104 tightly covers the outside of the discharge port 102. When discharge is required, the active connecting rods 105 are operated to drive the driven connecting rods 106, thereby opening or closing the discharge cover plate 104. This mechanical linkage design not only improves the convenience of operation but also ensures the stability and accuracy of the discharge process. The active connecting rods 105 and driven connecting rods 106 are connected by a hinge, with one end hinged to the active connecting rod 105 and the other end hinged to the discharge cover plate 104. This connection method allows the connecting rods to rotate flexibly, adapting to different opening angles of the discharge cover plate 104. The other end of the active linkage 105 is vertically fixed to a control lever 107. The control lever 107 is rotatably connected to the support frame 101 via a shaft hole positioning method, allowing the operator to easily control the movement of the feeding mechanism 103 by rotating the control lever 107. To facilitate multi-person collaborative operation or accommodate operators of different heights and operating habits, multiple control handles 108 are vertically fixed to the control lever 107. These handles are designed to conform to ergonomic principles and have anti-slip functions, ensuring that the operator can easily and stably hold the handles during operation, achieving precise control of the feeding mechanism 103. When it is necessary to feed granular ammonium nitrate, the operator holds the control handles 108 on the control lever 107 and rotates the control lever 107 by applying external force. Since the control lever 107 is vertically fixed to the active linkage 105, the rotation of the control lever 107 will drive the active linkage 105 to rotate around the connection point with the control lever 107. When the active linkage 105 rotates, it drives the driven linkage 106 to move through the hinge point.The movement of the driven link 106 causes the discharge cover 104 to rotate around the hinge point with the driven link 106, thereby opening and closing the discharge cover 104. When the discharge cover 104 is open, the granular ammonium nitrate in the feed box 100 flows out from the discharge port 102 under the action of gravity, completing the feeding operation; when the discharge cover 104 is closed, it prevents the granular ammonium nitrate from continuing to flow out, and feeding can be paused. This structural design allows operators to easily control the discharge of granular ammonium nitrate through simple manual operation, making the operation simple and reliable. This technical solution, through its ingenious design and reasonable layout, achieves efficient and safe feeding of granular ammonium nitrate, providing strong support for the automation and mechanization of explosives preparation processes.

[0024] In another technical solution, the bottom of the material bin 100 is provided with a conical portion 109, and the discharge port 102 is close to the bottom end of one side of the support frame 101 and flush with one side wall of the support frame 101. An inclined discharge channel 110 connects the bottom end of the conical portion 109 and the discharge port 102. In this technical solution, to ensure smooth discharge, the bottom of the material bin 100 is designed as a conical portion 109. This allows the granular ammonium nitrate inside the material bin 100 to flow more smoothly to the discharge port 102 under the action of gravity. The position of the discharge port 102 is carefully set close to the bottom end of one side of the support frame 101 and flush with one side wall of the support frame 101. This not only facilitates the discharge of granular ammonium nitrate but also makes the operation of the entire device more convenient. In addition, an inclined discharge channel 110 is connected between the bottom end of the conical part 109 and the discharge port 102, which further ensures that the granular ammonium nitrate can flow out smoothly and quickly.

[0025] In another technical solution, the support frame 101 includes multiple vertical support rods 111 fixed to the outer periphery of the material bin 100. A base 112 is vertically fixed to the bottom end of each vertical support rod 111. A lifting hole 113 for a forklift's fork arm is provided on one side of the base 112. In this technical solution, the support frame 101 is a crucial support structure for the entire device. It consists of multiple vertical support rods 111 fixed to the outer periphery of the material bin 100. These support rods not only provide sufficient support force but also make the entire device more stable. The bottom end of each vertical support rod 111 is vertically fixed to a base 112. This design not only increases the stability of the device but also facilitates its movement and fixation. A lifting hole 113 for a forklift's fork arm is provided on one side of the base 112, allowing the entire device to be easily moved and lifted by a forklift.

[0026] In another technical solution, shaft holes are provided on the vertical support rods 111 adjacent to both ends of the control lever 107. Shaft portions are provided at both ends of the control lever 107, and the ends of the shaft portions have matching fillets within the shaft holes. A transition fit is used between the shaft portions and the shaft holes, and the shaft portions and shaft holes are axially positioned by a pin connection. The center lines of the shaft portions and shaft holes coincide. In this technical solution, to ensure stable and flexible rotation of the control lever 107, shaft holes are provided on the vertical support rods 111 adjacent to both ends of the control lever 107. Simultaneously, shaft portions are provided at both ends of the control lever 107, and the ends of these shaft portions have matching fillets within the shaft holes to ensure smooth insertion of the shaft portions into the shaft holes. Furthermore, a transition fit is used between the shaft portions and the shaft holes, which not only increases the tightness of the connection but also allows the control lever 107 to rotate more smoothly. To ensure axial positioning between the shaft portions and the shaft holes, a pin connection is also used. This design ensures the stability and accuracy of the control lever 107 during rotation. When the operator rotates the control lever 107, its shaft rotates within the shaft hole of the vertical support rod 111. Because the center line of the shaft coincides with the center line of the shaft hole, and axial positioning is achieved through a pin connection, the stability of the control lever 107 during rotation is guaranteed, preventing axial movement. This allows the feeding mechanism 103 to accurately open and close the feeding cover 104 according to the operator's intention, ensuring the normal operation of the feeding device.

[0027] In another technical solution, a discharge hopper 114 is also provided at the discharge port 102. The discharge hopper 114 includes a vertically connected bottom plate 115 and two side guard plates 116. In this technical solution, the addition of a discharge hopper 114 at the discharge port 102 not only increases the capacity of the discharge port 102 but also allows granular ammonium nitrate to flow out more smoothly. The discharge hopper 114 is composed of a vertically connected bottom plate 115 and two side guard plates 116, a structure that is both simple and practical. The bottom plate 115 can bear the granular ammonium nitrate and guide it to the required position; while the side guard plates 116 can prevent the granular ammonium nitrate from scattering or splashing during the outflow process.

[0028] In another technical solution, the discharge port 102 is located near the base 112, and the bottom plate of the discharge hopper 114 is inclined to one side of the base 112. In this technical solution, the discharge port 102 is positioned near the base 112, and the bottom plate of the discharge hopper 114 is inclined to one side of the base 112. This design allows granular ammonium nitrate to flow more smoothly out of the discharge port 102 under gravity and along the inclined bottom plate to the desired location. This not only improves discharge efficiency but also reduces the loss of granular ammonium nitrate during the outflow process, ensuring the fluidity and smoothness of the discharge.

[0029] In another technical solution, the discharge hopper 114 and the lifting hole 113 are located on opposite sides of the base 112. In this technical solution, the discharge hopper 114 and the lifting hole 113 are respectively positioned on opposite sides of the base 112. This design not only makes the overall structure of the device more reasonable and compact, but also avoids collisions or damage that may occur during handling and movement, ensuring the stability and safety of the entire device during use.

[0030] In another technical solution, each active link 105 is a linear structure, and each driven link 106 is an arc-shaped structure. Each driven link 106 is hinged to the outer bottom end of the discharge cover 104, and the operating lever 107 is located above the discharge port 102. In this technical solution, the active link 105 is designed as a linear structure in the design of the discharge mechanism 103, which allows it to rotate more smoothly and drive the driven link 106 to move. The driven link 106 is designed as an arc-shaped structure, which allows it to better adapt to the movement trajectory of the discharge cover 104. The driven link 106 is hinged to the outer bottom end of the discharge cover 104, which allows the discharge cover 104 to flexibly open or close the discharge port 102. The operating lever 107 is located above the discharge port 102, which allows the operator to easily control the movement of the discharge mechanism 103 through the operating handle 108.

[0031] In another technical solution, each set of active connecting rods 105 and driven connecting rods 106, and each driven connecting rod 106 and the discharge cover plate 104, are hinged using anti-loosening nuts. This technical solution uses anti-loosening nuts for hinged connections to ensure a stable and reliable connection between the active connecting rods 105 and driven connecting rods 106, and between the driven connecting rods 106 and the discharge cover plate 104. This not only increases the tightness of the connection but also prevents loosening or detachment that may occur during use, improving the stability and safety of the entire device and extending its service life.

[0032] The specific working process of the above-mentioned device is as follows:

[0033] 1. Loading: Use a forklift to lift the porous granular ammonium nitrate ton bag to the top of the material box 100, and use a scraper to cut open the bottom of the ton bag so that the porous granular ammonium nitrate enters the material box 100 under the action of gravity.

[0034] 2. Lifting: Insert the forklift's combination forks into the corresponding lifting holes 113, lift the entire device to the top of the explosives truck, and align the discharge port 102 with the explosives truck's feeding port.

[0035] 3. Discharge: Manually operate the control lever 107 to swing the active connecting rod 105 of the discharge mechanism 103 upward. The active connecting rod 105 drives the driven connecting rod 106 to lift, thereby opening the discharge cover plate 104. The porous granular ammonium nitrate enters the explosives cart's material box 100 through the discharge hopper 114 under the action of gravity.

[0036] 4. After the material is discharged, manually operate the control lever 107 to make the active connecting rod 105 of the material discharge mechanism 103 swing downward. The active connecting rod 105 drives the driven connecting rod 106 to descend, close the material discharge cover plate 104, and stop the material discharge.

[0037] 5. Lower the device and operate the forklift to move the entire device to the ground. The forklift arm will then retract from the lifting hole 113, and the loading process will be completed.

[0038] The number of devices and processing scale described herein are for the purpose of simplifying the description of this utility model. Applications, modifications, and variations of this utility model will be readily apparent to those skilled in the art.

[0039] Although the embodiments of this utility model have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for this utility model. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, this utility model is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A granular ammonium nitrate feeding device for on-site mixed explosives trucks, characterized in that, The device includes a material bin, around which a support frame is fixedly installed. A discharge port is provided at the lowest point of the material bin, and a feeding mechanism is installed outside the discharge port. The feeding mechanism includes a feeding cover plate covering the discharge port, and multiple sets of active and passive connecting rods. One end of each passive connecting rod is hinged to one end of the corresponding active connecting rod in the same set, and the other end of each passive connecting rod is hinged to the feeding cover plate. The other end of each active connecting rod is vertically fixed to a control lever. Both ends of the control lever are rotatably connected to the support frame through shaft hole positioning. Multiple control handles are vertically fixed to the control lever.

2. The on-site mixing explosives vehicle granular ammonium nitrate feeding device as described in claim 1, characterized in that, The bottom of the material box is provided with a conical part, the discharge port is close to the bottom end of one side of the support frame and is flush with one side wall of the support frame, and an inclined discharge channel is connected between the bottom end of the conical part and the discharge port.

3. The on-site mixing explosives vehicle granular ammonium nitrate feeding device as described in claim 2, characterized in that, The support frame includes multiple vertical support rods fixed to the outer periphery of the material box. The bottom ends of the multiple vertical support rods are vertically fixed to a base. A lifting hole is provided on one side of the base for the fork arm of a forklift to be matched and inserted.

4. The on-site mixing explosives vehicle granular ammonium nitrate feeding device as described in claim 2, characterized in that, Each of the vertical support rods adjacent to both ends of the control lever is provided with a shaft hole. Both ends of the control lever are provided with a shaft portion. The end of the shaft portion and the opening of the shaft hole are provided with matching rounded corners. The shaft portion and the shaft hole adopt a transition fit. The shaft portion and the shaft hole are axially positioned by means of a pin connection. The center line of the shaft portion and the shaft hole coincide.

5. The on-site mixing explosives vehicle granular ammonium nitrate feeding device as described in claim 3, characterized in that, The discharge port is also equipped with a discharge hopper, which includes a vertically connected bottom plate and two side guard plates.

6. The on-site mixing explosives vehicle granular ammonium nitrate feeding device as described in claim 5, characterized in that, The discharge port is close to the base, and the bottom plate of the discharge hopper is inclined on one side of the base.

7. The on-site mixing explosives vehicle granular ammonium nitrate feeding device as described in claim 6, characterized in that, The discharge hopper and the lifting hole are located on opposite sides of the base, respectively.

8. The on-site mixing explosives vehicle granular ammonium nitrate feeding device as described in claim 1, characterized in that, Each active link is a linear structure, each driven link is an arc-shaped structure, and each driven link is hinged to the outer bottom end of the discharge cover plate. The operating lever is located above the discharge port.

9. The on-site mixing explosives vehicle granular ammonium nitrate feeding device as described in claim 1, characterized in that, Each set of active and driven links, as well as each driven link and the discharge cover plate, are hinged with anti-loosening nuts.

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