Anti-explosion metering scale feeding mechanism for blasting product production

Abstract

The utility model relates to the technical field of explosion product production, in particular to an explosion-proof metering scale feeding mechanism for explosion product production, which not only can prevent raw materials from being left in a device and improve the utilization rate of the raw materials, but also can prevent explosion caused by heating such as static electricity, friction and the like of the raw materials and improve the safety in raw material weighing. Comprising a weighing mechanism; the device further comprises a material storage mechanism, a conveying mechanism, a cooling mechanism and an exhaust mechanism, the material storage mechanism is installed on the weighing mechanism and used for temporarily storing the raw materials, the conveying mechanism is installed on the material storage mechanism and used for conveying the raw materials, and the cooling mechanism is installed on the conveying mechanism and used for reducing the temperature of the raw materials. The exhaust mechanism is installed on the material storage mechanism and exhausts air in the material storage mechanism.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of explosive production, particularly to an explosive production anti-explosion metering scale feeding mechanism. BACKGROUND

[0002] Explosive is used for non-military, listed in the name table of civil explosive, all kinds of gunpowder, explosive and its products and detonator, fuse, ignition, initiation equipment, their basic characteristics are a kind of energetic material, when receiving certain form of energy excitation can occur combustion or explosion, rapidly release the energy of special effect, and act on the surrounding medium and target.

[0003] The existing explosive production anti-explosion metering scale feeding mechanism, for example, the utility model patent with application number 202020809680.2 discloses an ammonium nitrate explosive stirring and weighing device for blasting, its main structure includes a weighing barrel, a barrel cover, a support frame, the top end of the weighing barrel is provided with a barrel cover, the bottom end of the weighing barrel is provided with an inclined plate, the lower side of the inclined plate is provided with a support frame, the weighing barrel is provided with a stirring rod penetrating through the barrel cover, the stirring rod is distributed with stirring handles, the upper end of the stirring rod is connected with a rocking handle located outside the barrel cover, the inner wall of the weighing barrel is provided with a weight scale, the barrel wall of the weighing barrel is provided with a discharge structure, the discharge structure is located at the lower end of the horizontal plane of the inclined plate, and the lower end of the horizontal plane of the inclined plate extends to the outside of the weighing barrel; in use, the fixed charge weighing barrel is closed at the bottom discharge structure, according to the requirements, a certain amount of ammonium nitrate explosive and diesel oil is poured, the wooden rocking handle is rotated, the ammonium nitrate explosive and diesel oil are mixed through the stirring handle, the weight scale is checked, the designed charge amount is confirmed, until the ammonium nitrate explosive in the barrel is emptied, and then the new ammonium nitrate explosive is poured again, and the cycle is repeated.

[0004] However, the existing feeding mechanism is easy to have explosive residue in the mechanism, causing waste of explosive, and if static electricity or friction heat is generated during the explosive conveying process, explosion is easy to be caused. UTILITY MODEL CONTENTS

[0005] To solve the above technical problems, the utility model provides an explosive production anti-explosion metering scale feeding mechanism which can not only prevent raw materials from remaining in the device, improve the utilization rate of raw materials, and prevent explosion caused by static electricity, friction and other heat generation in raw material weighing, and improve the safety of raw material weighing.

[0006] The utility model discloses a production anti -explosion weighing scale feeding mechanism of explosive product, including weighing mechanism, still including storage mechanism, conveying mechanism, cooling mechanism and exhaust mechanism, and the storage mechanism is installed on the weighing mechanism and stores the raw material temporarily, and the conveying mechanism is installed on the storage mechanism and transports the raw material, and the cooling mechanism is installed on the conveying mechanism and reduces the raw material temperature, and the exhaust mechanism is installed on the storage mechanism and exports the air in the storage mechanism, raw material is added to the storage mechanism, and the raw material in the storage mechanism is transported to the weighing mechanism and is weighed to the conveying mechanism is started, and the cooling mechanism is started to the raw material cooling, prevents raw material friction heat explosion, and exports the air in the raw material through the exhaust mechanism, improves weighing accuracy and prevents raw material splashing.

[0007] Preferably, the weighing mechanism includes a weighter, a backing plate, a display screen, a connecting frame, three sets of explosion-proof glass, a hinge, an explosion-proof door and a container, the bottom end of the weighter is connected with the ground, the bottom end of the backing plate is connected with the top end of the weighter, the display screen is installed on the weighter, the bottom end of the connecting frame is connected with the top end of the weighter, the three sets of explosion-proof glass are all installed on the connecting frame, the hinge is installed on the connecting frame, the explosion-proof door is installed on the hinge, and the container is placed on the backing plate; the staff opens the explosion-proof door, places the container on the backing plate, closes the explosion-proof door again, then the storage mechanism transports the raw material into the container, the weighter weighs the raw material in the container, the weight is displayed through the display screen, when the appropriate weight is reached, the weighter controls the storage mechanism to stop feeding, then the staff takes out the container, by setting three sets of explosion-proof glass and the explosion-proof door, the raw material explosion in the weighing process is prevented.

[0008] Preferably, the backing plate is made of insulating material, and the weighter is provided with a grounding wire; by setting the grounding wire on the weighter, the static electricity generated in the weighing process of the weighter is prevented to cause the raw material explosion, and the electrical connection between the weighter and the container is isolated through the backing plate, further preventing the current from being generated.

[0009] Preferably, the material storage mechanism includes a conveying cylinder, a feeding pipe, a sealing cap, a conveying hose, a solenoid valve, two sets of electric cylinders, and two sets of connecting rods. The bottom end of the conveying cylinder is connected to the top end of the connecting frame. The conveying cylinder has an internal cavity. The bottom end of the feeding pipe communicates with the inside of the top end of the conveying cylinder. The top end of the feeding pipe has a feed inlet. The sealing cap is rotatably mounted on the feeding pipe. The conveying hose is mounted on the connecting frame and communicates with the inside of the cavity of the conveying cylinder. The solenoid valve is mounted on the conveying hose. Both sets of electric cylinders are mounted on the connecting frame and are located on the left and right sides of the solenoid valve, respectively. The connecting rods are installed at the bottom of the two sets of electric cylinders and are connected to the solenoid valves. After opening the sealing cover, the raw material is transported into the cavity of the conveying cylinder through the feeding pipe. The conveying mechanism transports the raw material into the conveying hose. After the explosion-proof door is closed, the two sets of electric cylinders are started. The two sets of electric cylinders drive the two sets of connecting rods and solenoid valves to descend, so that the solenoid valves are as close as possible to the inlet of the container to reduce the loss during the feeding process. The solenoid valves are opened, and the raw material in the conveying hoses is transported into the container for weighing. When the specified weight is reached, the weighing device closes the solenoid valves through an electrical signal to prevent the addition of raw material.

[0010] Preferably, the conveying mechanism includes a motor, a reducer, a first pulley, a rotating shaft, an auger, a second pulley, and a belt. The bottom end of the motor is connected to the top end of the connecting frame, and the bottom end of the reducer is connected to the top end of the connecting frame. The first pulley is rotatably mounted on the reducer, the rotating shaft is rotatably mounted in the cavity of the conveying cylinder, the auger is mounted on the rotating shaft, the second pulley is mounted on the rotating shaft, and the belt is tensioned between the first and second pulleys. When the motor is started, the motor drives the first pulley to rotate through the reducer. The first pulley drives the second pulley to rotate through the belt, and the second pulley drives the rotating shaft and the auger to rotate. The auger compresses the raw material and conveys the raw material into the conveying hose.

[0011] Preferably, the cooling mechanism includes an air pump, an air extraction pipe, a filter, an air delivery pipe, and multiple sets of nozzles. The bottom end of the air pump is connected to the top end of the connecting frame. The air extraction pipe is installed on the air pump. The bottom end of the filter is connected to the top end of the connecting frame and communicates with the inside of the air extraction pipe. The air delivery pipe is installed on the air pump. Multiple sets of nozzles are installed in the cavity of the conveying cylinder and communicate with the inside of the air delivery pipe. The reducer drives the air pump to extract air. After the filter filters and cools the air, the air pump extracts the cold air from the filter through the air extraction pipe and then delivers it to the multiple sets of nozzles through the air delivery pipe. The nozzles deliver the cold air to the cavity of the conveying cylinder, which can not only accelerate the discharge of raw materials but also reduce the temperature of the raw materials and prevent the raw materials from heating up due to friction during the extrusion process.

[0012] Preferably, the exhaust mechanism includes an exhaust pipe and an exhaust valve. The exhaust pipe is installed on the conveying hose and communicates with the inside of the conveying hose. The exhaust valve is installed on the exhaust pipe. The cold air in the cavity of the conveying cylinder is discharged through the exhaust pipe and the exhaust valve to prevent the air from following the conveying hose and causing raw material splashing. The exhaust valve is provided to prevent the raw material from being discharged through the exhaust pipe and causing waste.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: the raw material is added into the storage mechanism, the conveying mechanism is started to transport the raw material in the storage mechanism to the weighing mechanism for weighing, the cooling mechanism is started to cool the raw material to prevent the raw material from generating heat and exploding through friction, and the air in the raw material is discharged through the exhaust mechanism to improve the weighing accuracy and prevent the raw material from splashing. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the isometric structure of this utility model;

[0015] Figure 2 This is an isometric structural diagram of the weighing mechanism of this utility model;

[0016] Figure 3 This is a partially enlarged front view schematic diagram of the material storage mechanism of this utility model;

[0017] Figure 4 This is a partially enlarged isometric structural diagram of the conveying mechanism and cooling mechanism of this utility model;

[0018] Figure 5 This is a partially enlarged cross-sectional isometric structural diagram of the conveying mechanism, cooling mechanism, and exhaust mechanism of this utility model.

[0019] The attached diagram is labeled as follows: 01, Weighing mechanism; 11, Weighing instrument; 12, Pad; 13, Display screen; 14, Connecting frame; 15, Explosion-proof glass; 16, Hinge; 17, Explosion-proof door; 18, Container; 02, Storage mechanism; 21, Conveying cylinder; 22, Feeding pipe; 23, Sealing cover; 24, Conveying hose; 25, Solenoid valve; 26, Electric cylinder; 27, Connecting rod; 03, Conveying mechanism; 31, Electric motor; 32, Reducer; 33, Pulley 1; 34, Rotating shaft; 35, Screwdriver; 36, Pulley 2; 37, Belt; 04, Cooling mechanism; 41, Air pump; 42, Air extraction pipe; 43, Filter; 44, Air supply pipe; 45, Nozzle; 05, Exhaust mechanism; 51, Exhaust pipe; 52, Exhaust valve. Detailed Implementation

[0020] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete.

[0021] Example 1

[0022] This utility model discloses an explosion-proof weighing scale feeding mechanism for producing explosive products, including a weighing mechanism 01; it also includes a storage mechanism 02, a conveying mechanism 03, a cooling mechanism 04, and an exhaust mechanism 05. The storage mechanism 02 is installed on the weighing mechanism 01 and temporarily stores the raw materials; the conveying mechanism 03 is installed on the storage mechanism 02 and conveys the raw materials; the cooling mechanism 04 is installed on the conveying mechanism 03 and reduces the temperature of the raw materials; the exhaust mechanism 05 is installed on the storage mechanism 02 and exhausts the air inside the storage mechanism 02. The weighing mechanism 01 includes a weighing device 11, a pad 12, a display screen 13, a connecting frame 14, and three sets of explosion-proof... The weighing device 11 consists of glass 15, hinges 16, an explosion-proof door 17, and a container 18. The bottom of the weighing device 11 is connected to the ground, the bottom of the pad 12 is connected to the top of the weighing device 11, a display screen 13 is mounted on the weighing device 11, and the bottom of the connecting frame 14 is connected to the top of the weighing device 11. All three sets of explosion-proof glass 15 are mounted on the connecting frame 14, the hinges 16 are mounted on the connecting frame 14, the explosion-proof door 17 is mounted on the hinges 16, and the container 18 is placed on the pad 12. The pad 12 is made of insulating material, and a grounding wire is installed on the weighing device 11. The storage mechanism 02 includes a conveying cylinder 21, a feeding pipe 22, a sealing cover 23, and a conveying... The system includes a material hose 24, a solenoid valve 25, two sets of electric cylinders 26, and two sets of connecting rods 27. The bottom end of the conveying cylinder 21 is connected to the top end of the connecting frame 14. The conveying cylinder 21 has an internal cavity. The bottom end of the feeding pipe 22 communicates with the inside of the top end of the conveying cylinder 21. The top end of the feeding pipe 22 has a feed inlet. A sealing cap 23 is rotatably mounted on the feeding pipe 22. The material conveying hose 24 is mounted on the connecting frame 14 and communicates with the inside of the cavity of the conveying cylinder 21. The solenoid valve 25 is mounted on the material conveying hose 24. The two sets of electric cylinders 26 are both mounted on the connecting frame 14 and are located on the left and right sides of the solenoid valve 25, respectively. The two sets of connecting rods 27 are respectively... The conveying mechanism 03 includes a motor 31, a reducer 32, a first pulley 33, a rotating shaft 34, an auger 35, a second pulley 36, and a belt 37. The bottom end of the motor 31 is connected to the top end of the connecting frame 14, the bottom end of the reducer 32 is connected to the top end of the connecting frame 14, the first pulley 33 is rotatably mounted on the reducer 32, the rotating shaft 34 is rotatably mounted in the cavity of the conveying cylinder 21, the auger 35 is mounted on the rotating shaft 34, the second pulley 36 is mounted on the rotating shaft 34, and the belt 37 is tensioned between the first pulley 33 and the second pulley 36.During operation, the operator first opens the explosion-proof door 17, places the container 18 on the pad 12, and then closes the explosion-proof door 17 again. The sealing cover 23 is then opened, and the raw material is conveyed through the feeding pipe 22 into the cavity of the conveying cylinder 21. The motor 31 is started, and the motor 31 drives the pulley 33 to rotate via the reducer 32. The pulley 33 drives the pulley 36 to rotate via the belt 37. The pulley 36 drives the rotating shaft 34 and the auger 35 to rotate. The auger 35 compresses the raw material, conveying it into the conveying hose 24. After the explosion-proof door 17 is closed, two sets of electric cylinders 26 are activated. The two sets of electric cylinders 26 drive the two sets of connecting rods 27 and the solenoid valve 25 to descend. To minimize material loss during feeding, the solenoid valve 25 is positioned as close as possible to the feed inlet of the container 18. Opening the solenoid valve 25 allows the raw material in the conveying hose 24 to be transported into the container 18 for weighing. Once the specified weight is reached, the weighing device 11 closes the solenoid valve 25 via an electrical signal to prevent further material addition. The container 18 is then removed. Three sets of explosion-proof glass 15 and an explosion-proof door 17 are installed to prevent explosions during weighing. A grounding wire on the weighing device 11 prevents static electricity from causing an explosion. A pad 12 isolates the electrical connection between the weighing device 11 and the container 18, further preventing current generation.

[0023] Example 2

[0024] like Figures 1 to 5As shown, the present invention discloses a feeding mechanism for an explosion-proof weighing scale used in the production of explosive products, based on embodiment 1. The cooling mechanism 04 includes an air pump 41, an extraction pipe 42, a filter 43, an air supply pipe 44, and multiple sets of nozzles 45. The bottom end of the air pump 41 is connected to the top end of the connecting frame 14. The extraction pipe 42 is mounted on the air pump 41. The bottom end of the filter 43 is connected to the top end of the connecting frame 14 and communicates with the inside of the extraction pipe 42. The air supply pipe 44 is mounted on the air pump 41. Multiple sets of nozzles 45 are all installed in the cavity of the conveying cylinder 21 and communicate with the inside of the air supply pipe 44. The exhaust mechanism 05 includes an exhaust pipe 51 and an exhaust valve 52. The exhaust pipe 51 is mounted on the conveying hose 24 and communicates with the conveying... The hose 24 is internally connected, and the exhaust valve 52 is installed on the exhaust pipe 51. During operation, the operator first opens the explosion-proof door 17, places the container 18 on the pad 12, then closes the explosion-proof door 17 again, opens the sealing cover 23, and feeds the raw material through the feeding pipe 22 into the cavity of the conveying cylinder 21. The motor 31 is then started, and the motor 31 drives the pulley 33 to rotate via the reducer 32. The pulley 33 drives the pulley 36 to rotate via the belt 37. The pulley 36 drives the rotating shaft 34 and the auger 35 to rotate. The auger 35 compresses the raw material, conveying it into the conveying hose 24. Simultaneously, the reducer 32 drives the air pump 41 to extract air, and the filter 43 filters the air. After filtration and cooling, the air pump 41 extracts the cold air from the filter 43 through the air extraction pipe 42, and then delivers it to multiple sets of nozzles 45 through the air delivery pipe 44. The nozzles 45 deliver the cold air into the cavity of the conveying cylinder 21, which not only accelerates the discharge of raw materials but also reduces the temperature of the raw materials and prevents them from heating up due to friction during the extrusion process. The cold air in the cavity of the conveying cylinder 21 is discharged through the exhaust pipe 51 and the exhaust valve 52 to prevent air from following the material delivery hose 24 and causing raw materials to splash. The exhaust valve 52 prevents raw materials from being discharged through the exhaust pipe 51 and wasting them. After the explosion-proof door 17 is closed, the two sets of electric cylinders 26 are activated. The two sets of electric cylinders 26 drive the two sets of connecting rods 27 and electric... The solenoid valve 25 descends, bringing it as close as possible to the feed inlet of the container 18 to reduce losses during the feeding process. The solenoid valve 25 is then opened, and the raw material in the conveying hose 24 is transported into the container 18 for weighing. Once the specified weight is reached, the weighing device 11 closes the solenoid valve 25 via an electrical signal to prevent further addition of raw material. Then, the operator removes the container 18. Three sets of explosion-proof glass 15 and explosion-proof doors 17 are installed to prevent explosions during the weighing process. A grounding wire is installed on the weighing device 11 to prevent static electricity from causing an explosion. The pad 12 isolates the electrical connection between the weighing device 11 and the container 18 to further prevent current generation.

[0025] The electric motor 31, reducer 32, air pump 41, and filter 43 of this utility model are commercially available. Technical personnel in this industry only need to install and operate them according to the accompanying instruction manual, without requiring any creative work from those skilled in the art.

[0026] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. An anti-explosion weighing scale feeding mechanism for explosive product production, comprising a weighing mechanism (01); characterized in that, The device also comprises a storage mechanism (02), a conveying mechanism (03), a cooling mechanism (04) and an exhaust mechanism (05), the storage mechanism (02) is installed on the weighing mechanism (01) and temporarily stores raw materials, the conveying mechanism (03) is installed on the storage mechanism (02) and conveys raw materials, the cooling mechanism (04) is installed on the conveying mechanism (03) and lowers the temperature of raw materials, and the exhaust mechanism (05) is installed on the storage mechanism (02) and exhausts air in the storage mechanism (02).

2. A blast product production explosion-proof weighing scale feed mechanism as claimed in claim 1, characterized in that, The weighing mechanism (01) comprises a weighing scale (11), a backing plate (12), a display screen (13), a connecting frame (14), three sets of explosion-proof glass (15), a hinge (16), an explosion-proof door (17) and a container (18), the bottom end of the weighing scale (11) is connected with the ground, the bottom end of the backing plate (12) is connected with the top end of the weighing scale (11), the display screen (13) is installed on the weighing scale (11), the bottom end of the connecting frame (14) is connected with the top end of the weighing scale (11), the three sets of explosion-proof glass (15) are all installed on the connecting frame (14), the hinge (16) is installed on the connecting frame (14), the explosion-proof door (17) is installed on the hinge (16), and the container (18) is placed on the backing plate (12).

3. A blast article production explosion-proof metering scale feed mechanism as defined in claim 2, wherein, The backing plate (12) is made of insulating material, and the weighing scale (11) is provided with a grounding wire.

4. An anti-explosive weighing scale feed mechanism for the production of explosive articles as claimed in claim 2, characterized in that, The storage mechanism (02) comprises a conveying cylinder (21), a feeding pipe (22), a sealing cover (23), a conveying hose (24), an electromagnetic valve (25), two sets of electric cylinders (26) and two sets of connecting rods (27), the bottom end of the conveying cylinder (21) is connected with the top end of the connecting frame (14), the conveying cylinder (21) is internally provided with a cavity, the bottom end of the feeding pipe (22) is in communication with the top end of the conveying cylinder (21) internally, the top end of the feeding pipe (22) is provided with a feeding opening, the sealing cover (23) is rotatably installed on the feeding pipe (22), the conveying hose (24) is installed on the connecting frame (14) and in communication with the cavity of the conveying cylinder (21) internally, the electromagnetic valve (25) is installed on the conveying hose (24), the two sets of electric cylinders (26) are both installed on the connecting frame (14) and respectively located on the left and right sides of the electromagnetic valve (25), and the two sets of connecting rods (27) are respectively installed on the bottom ends of the two sets of electric cylinders (26) and connected with the electromagnetic valve (25).

5. A blast article production explosion-proof metering scale feed mechanism as defined in claim 4, wherein, The conveying mechanism (03) comprises a motor (31), a speed reducer (32), a belt pulley I (33), a rotating shaft (34), an auger (35), a belt pulley II (36) and a belt (37), the bottom end of the motor (31) is connected with the top end of the connecting frame (14), the bottom end of the speed reducer (32) is connected with the top end of the connecting frame (14), the belt pulley I (33) is rotatably installed on the speed reducer (32), the rotating shaft (34) is rotatably installed in the cavity of the conveying cylinder (21), the auger (35) is installed on the rotating shaft (34), the belt pulley II (36) is installed on the rotating shaft (34), and the belt (37) is tightly installed between the belt pulley I (33) and the belt pulley II (36).

6. An anti-explosive weighing scale feed mechanism for the production of explosive articles as claimed in claim 2, characterized in that, The cooling mechanism (04) comprises an air pump (41), an air suction pipe (42), a filter (43), an air conveying pipe (44) and a plurality of groups of spray heads (45), the bottom end of the air pump (41) is connected with the top end of the connecting frame (14), the air suction pipe (42) is installed on the air pump (41), the bottom end of the filter (43) is connected with the top end of the connecting frame (14) and communicates with the inside of the air suction pipe (42), the air conveying pipe (44) is installed on the air pump (41), and the plurality of groups of spray heads (45) are all installed in the cavity of the conveying cylinder (21) and communicate with the inside of the air conveying pipe (44).

7. A blast article production explosion-proof weighing scale feed mechanism as defined in claim 4 wherein, The exhaust mechanism (05) comprises an exhaust pipe (51) and an exhaust valve (52), the exhaust pipe (51) is installed on the conveying hose (24) and communicates with the inside of the conveying hose (24), and the exhaust valve (52) is installed on the exhaust pipe (51).

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