Automatic explosive airing device for explosives and powders
By designing the automatic drying device for explosives, and using the combined weighing method of raking and blowing airflow, the problem of uneven volatility of the agent solvent is solved, and the precise control of the quality of the agent and the improvement of the drying speed is achieved.
Patent Information
- Application Number
- CN202422156552.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-03
- Publication Date
- 2025-08-22
- Estimated Expiration
- 2034-09-03
AI Technical Summary
The existing drug drying process cannot ensure the uniformity of the drug solvent and the sufficient degree of drug drying. The traditional methods are greatly affected by environmental factors and cannot accurately control the quality of the drug.
An automatic drying device for explosives is designed, including a raking mechanism, a blowing mechanism, a weighing mechanism and a lifting mechanism. Through the lifting, raking and blowing airflow of the medicine plate, uniform volatility and accurate measurement of the chemical solvent are achieved.
The speed of drying medicine is improved, the uniformity of solvent volatility and accurate measurement of volatility in the agent is ensured, and the consistency and safety of the agent quality are ensured.
Smart Images
Figure CN223255137U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of military and civil explosions, and in particular to an automatic explosive drying device. Background Art
[0002] Ignition powder is a relatively dangerous explosive, mainly used to load detonators, fuses and other ignition equipment (for reference only: Ignition powder is an important substance specially used to ignite explosives, pyrotechnic agents, propellants and propellants. It has the characteristics of high thermal sensitivity and strong ignition ability, and is a key component of ignition and fire-transmitting explosive charges. Ignition powder is widely used in many fields such as military, civilian and industrial. For example, in the military, it can be used for the launch and detonation of weapons such as artillery shells and missiles; in civilian use, it can be used in the production of fireworks and firecrackers and the triggering of airbags; in industry, it can be used in various equipment and processes that require precise control of the ignition process.
[0003] After mixing and granulation, the raw materials in ignition powder contain a certain amount of solvent. Most of the solvent must be evaporated before proceeding to the next process to ensure the agent maintains a certain degree of fluidity and prevents agglomeration. Due to its high mechanical, electrostatic, and frictional sensitivities, ignition powder is prone to combustion and explosion. As a branch of explosives, ignition powder is widely used as the starting charge in various pyrotechnics and detonators. Its main characteristic is its sensitivity to external influences. Even minor external factors such as impact, friction, flame, heat, and static sparks can trigger an explosive transition, rapidly transitioning from combustion to detonation. Although the amount of ignition powder used in pyrotechnics and detonators is small, the metering accuracy required is extremely high. Consequently, high product quality is required, and precise control is crucial for each process. Traditional drying methods allow the agent to remain stationary and the solvent to evaporate naturally. This is based on experience and time, but the exact amount of solvent volatilization varies with ambient temperature, air flow, and other factors, and it is unknown. Therefore, our company has developed a new automatic drying device for pyrotechnics and explosives. Utility Model Content
[0004] The utility model provides an automatic explosive drying device to solve the problem that the existing drying process cannot ensure the uniformity of the volatilization of the agent solvent and the sufficient degree of drying.
[0005] To solve the above problems, the technical solution adopted by the present invention is as follows: an automatic drying device for explosives, comprising a frame, a raking mechanism, a blowing mechanism, a weighing mechanism, and a lifting mechanism; the lifting mechanism is located on the middle crossbeam of the frame, the lifting mechanism comprises a lifting part and a medicine tray seat, the output end of the lifting part is connected to the bottom surface of the medicine tray seat, and the medicine tray seat is driven to move up and down in the vertical direction by the lifting part; a vertical opening is opened on the medicine tray seat, and a movable medicine drying tray is placed on the top surface of the medicine tray seat; the raking mechanism is located on the upper crossbeam of the frame, and the raking mechanism is used to turn over and flatten the medicine in the medicine drying tray; the blowing mechanism is located next to the raking mechanism, and the blowing mechanism is used to blow air to the medicine drying tray; the weighing mechanism is located below the opening, and the weighing mechanism is used to lift the medicine drying tray and obtain the weight of the medicine drying tray; the weighing mechanism, the blowing mechanism, the raking mechanism, and the lifting mechanism are all electrically connected to an external controller.
[0006] The basic principle of this scheme is as follows: During the drying process, a medicine tray is placed on a lifting mechanism. The lifting mechanism descends, causing the tray seat to descend with it. A weighing mechanism then passes through an opening in the tray seat, allowing the tray to land on the weighing mechanism, and the initial weight of the medicine is measured. The lifting mechanism then rises, and the tray seat lifts the tray upward. The medicine in the tray contacts a rake, and the drive unit rotates, driving the rake forward and reverse to stir and flatten the medicine. Compressed air is introduced into the blowing mechanism, creating a gentle breeze across the surface of the medicine. During this raking and breeze process, the solvent within the medicine evaporates, ensuring uniform solvent evaporation across the entire tray, eliminating uneven distribution of the solvent inside and outside. After the initial raking and breeze process, the lifting mechanism descends, allowing the tray to land on the weighing mechanism. The weight of the medicine is then measured again. The weight difference provides the weight of the evaporated solvent, which is then used to determine the degree of drying. Once the medicine reaches the desired drying level, the tray is removed, completing the drying process. Any remaining medicine on the tray falls into the residual medicine receiving tray for collection and disposal.
[0007] The beneficial effects of this solution include: by raking the medicine and creating a breeze on the surface of the medicine, the drying speed is increased while ensuring uniform volatilization within the medicine. The amount of solvent volatilization is accurately determined by weighing. Furthermore, the medicine tray in this solution can be raised and lowered, allowing it to be separated from the weighing device during the raking process. When weighing is required, it can be lowered for weighing, resulting in a more accurate net weight value for the medicine. This allows for uniform solvent volatilization and precise measurement of the volatilization amount, ensuring consistency in the amount of solvent volatilized during the drying process for multiple batches of medicine in the industrial process, while also accelerating the drying process.
[0008] Furthermore, a medicine tray holder is provided on top of the weighing mechanism, and a movable residual medicine tray is placed on the top surface of the medicine tray holder. The residual medicine tray is used to catch medicine dripping from the medicine rake mechanism. After the medicine is dried, the medicine tray is removed, and the residual medicine tray can be used to catch the residual medicine dripping from the medicine rake, thereby facilitating the collection of residual medicine.
[0009] Furthermore, the blowing mechanism includes an annular pipe and an air source, the air source being used to deliver air to the annular pipe. The annular pipe is horizontally arranged above the medicine drying tray, and a plurality of fine holes are formed at the bottom of the annular pipe. The air is delivered along the annular pipe and blown out from the fine holes onto the surface of the medicine drying tray.
[0010] Furthermore, the medicine rake mechanism includes a medicine rake and a driving unit. The output end of the driving unit is connected to the medicine rake. The driving unit can drive the medicine rake to rotate forward and reverse. The medicine rake is composed of a plurality of blades spaced apart in the circumferential direction, and the bottom surface of the blades is provided with teeth.
[0011] Furthermore, the tooth shape is a sawtooth shape with alternating heights.
[0012] Furthermore, a plurality of limit blocks are provided on the periphery of the opening of the medicine tray seat, and the limit blocks are close to the inner wall of the opening and in contact with the side wall of the medicine tray for drying the medicine, so as to fix the medicine tray and prevent it from shifting during the medicine raking process.
[0013] Furthermore, the bottom surface area of the medicine drying tray is larger than the outer diameter of the opening.
[0014] Furthermore, the drug rake is made of soft conductive rubber, which can achieve the raking effect while avoiding hard contact with the drug. The drug rake is installed at multiple points, which is firm and reliable.
[0015] Furthermore, a plurality of limiting posts are provided at intervals along the circumference of the top surface of the medicine tray holder, and the height of the limiting posts is higher than the residual medicine tray, so as to ensure that the weighing mechanism can stably lift and receive the medicine tray. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 This is a schematic diagram of the installation structure of the utility model;
[0017] Figure 2 This is a partial diagram of the drug raking mechanism;
[0018] Figure 3 This is a partial diagram of the weighing mechanism. DETAILED DESCRIPTION
[0019] The following is further described in detail through specific implementation methods:
[0020] The figure marks in the drawings of the specification include: frame 1, medicine rake mechanism 2, driving part 21, medicine rake 22, blowing mechanism 3, lifting mechanism 4, lifting part 41, medicine tray seat 42, circular hole 421, limit block 43, weighing mechanism 5, weighing sensor 51, limit column 52, residual medicine receiving tray 6, and medicine drying tray A.
[0021] The embodiment is basically as shown in the attached Figures 1 to 3 As shown:
[0022] An automatic explosive drying device comprises a frame 1, a charge rake mechanism 2, a blowing mechanism 3, a lifting mechanism 4, and a weighing mechanism 5. The frame 1 is constructed from a combination of profiles and is shaped like a hollow rectangular frame. The left and right sides and bottom of the frame 1 are each a square frame structure. Four diagonal braces are fixed to the four bases of the frame 1 to stabilize the frame 1. A crossbeam track is fixed to the top surface of the frame 1, and a charge rake mechanism 2 is fixed to the bottom surface of the crossbeam track. The charge rake mechanism 2 includes a drive unit 21 and a charge rake 22. The charge rake 22 is keyed to the output shaft of the drive unit 21. In this embodiment, the drive unit 21 is a motor, and the forward and reverse rotation of the drive unit 21 drives the charge rake 22 to rotate forward and reverse in a horizontal plane. The charge rake 22 is composed of three circumferentially spaced blades arranged at 120-degree intervals. The bottom surface of the charge rake 22 is provided with teeth in a staggered, serrated pattern.
[0023] The blowing mechanism 3 is fixed to the side of the rake mechanism 2. The blowing mechanism 3 includes an annular pipe and an air source. The annular pipe is horizontally "C"-shaped. The annular pipe is welded in an annular shape by a stainless steel pipe. The annular pipe is fixed to the outer periphery of the driving part 21 through a clamp. A number of fine holes are opened at the bottom of the annular pipe along the length of the annular pipe. The air flow is pumped into the annular pipe through the air source, and the breeze is transported to the fine holes in different directions.
[0024] A plurality of beams are provided on the bottom surface of the frame 1, and a lifting mechanism 4 is fixed to the top surface of the beams. The lifting mechanism 4 includes a lifting portion 41 and a medicine tray seat 42. In this embodiment, the lifting portion 41 is a vertically arranged cylinder, and the output shaft at the upper end of the cylinder is fixed to the middle portion of the bottom surface of the medicine tray seat 42. The cylinder can drive the medicine tray seat 42 to move up and down in the vertical direction. Two circular holes 421 are symmetrically opened on the medicine tray seat 42, and a limiting block 43 is fixed on the circumference of the circular hole 421. The inner edge of the limiting block 43 can respectively contact the outer edge of the medicine drying tray A. In this embodiment, the medicine drying tray A is shaped like a square bucket. The size of the square bucket exceeds the size of the circular hole 421, so that the square bucket can be placed flat on the top surface of the medicine tray seat 42. When the medicine tray seat 42 moves up and down, the medicine drying tray A moves up and down accordingly.
[0025] A "well"-shaped frame is fixed in the middle of the frame 1, and the weighing mechanism 5 is installed on the top surface of the "well"-shaped frame. In this embodiment, the weighing mechanism 5 includes a weighing sensor 51 and a medicine tray holder. The medicine tray holder is fixed on the top surface of the weighing sensor 51. The medicine tray holder is disc-shaped, and the outer diameter of the medicine tray holder is smaller than the inner diameter of the circular hole 421. A number of limiting columns 52 are fixed circumferentially on the top surface of the medicine tray holder. A movable residual medicine receiving tray 6 is placed on the top surface of the medicine tray holder. The residual medicine receiving tray 6 is restricted between the limiting columns 52, and the height of the residual medicine receiving tray 6 is smaller than the limiting columns 52. The residual medicine receiving tray 6 is used to catch the medicine remaining on the medicine rake 22, and the medicine will fall into the residual medicine receiving tray 6 and finally be collected and processed in a unified manner.
[0026] Since the medicine tray holder is smaller than the circular hole 421, when the lifting part 41 drives the medicine tray seat 42 to move downward, the medicine tray A can fall onto the medicine tray holder, so that the weighing sensor 51 can measure the weight before and after the medicine is dried.
[0027] The weighing sensor 51, the driving part 21, the lifting part 41, and the blowing mechanism 3 are all electrically connected to the controller. The controller is used to control the forward and reverse rotation of the driving part 21, control the up and down movement of the lifting part 41 according to the weight information feedback from the weighing sensor 51, and control the air flow of the blowing mechanism 3.
[0028] The specific implementation process is as follows:
[0029] During the drying process, the medicine tray is placed on the lifting mechanism 4. The lifting mechanism 4 is lowered, and the medicine tray A lands on the weighing mechanism 5, where the initial weight of the medicine is measured. The lifting mechanism 4 then rises, and the medicine in the medicine tray A contacts the medicine rake 22. The medicine rake drive unit drives the medicine rake 22 in forward and reverse rotation, stirring and flattening the medicine. Compressed air is then passed through the blowing mechanism, which blows a breeze through several small holes onto the surface of the medicine. During the raking and breeze process, the solvent in the medicine evaporates, ensuring uniform solvent volatilization throughout the entire tray, eliminating any uneven distribution. After the first stage of raking and breeze, the lifting mechanism 4 is lowered, allowing the medicine tray to land on the weighing mechanism 5. The medicine weight is then measured again. The weight difference is used to determine the weight of the volatile solvent, which can then be used to determine the degree of drying. Once the medicine reaches the desired drying level, the medicine tray A is removed, completing the drying process. If any medicine remains on the medicine tray, it will fall into the residual medicine receiving tray 6 for collection and disposal.
[0030] The above is only an embodiment of the present invention, and the commonly known specific structures and characteristics of the scheme are not described in detail here. It should be pointed out that for those skilled in the art, several modifications and improvements can be made without departing from the structure of the present invention, and these should also be regarded as the scope of protection of the present invention. These will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection claimed by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.
Claims
1. An automatic airing device for explosives, characterized by: It includes a frame, a medicine raking mechanism, a blowing mechanism, a weighing mechanism, and a lifting mechanism; The lifting mechanism is located on the middle crossbeam of the frame, and the lifting mechanism includes a lifting part and a medicine tray seat. The output end of the lifting part is connected to the bottom surface of the medicine tray seat, and the medicine tray seat is driven to move up and down in the vertical direction by the lifting part; The medicine tray seat is provided with a vertical opening, and a movable medicine drying tray is placed on the top surface of the medicine tray seat; The medicine raking mechanism is located on the upper crossbeam of the frame and is used to turn over and spread the medicine in the medicine tray; The blowing mechanism is located beside the medicine raking mechanism and is used to blow air toward the medicine drying tray; The weighing mechanism is located below the opening and is used to lift the medicine drying tray and obtain the weight of the medicine drying tray; The weighing mechanism, blowing mechanism, medicine raking mechanism and lifting mechanism are all electrically connected to an external controller.
2. The automatic explosive drying device according to claim 1, characterized in that: A medicine tray holder is provided on the top of the weighing mechanism, and a movable residual medicine receiving tray is placed on the top surface of the medicine tray holder. The residual medicine receiving tray is used to receive medicine dripping from the medicine raking mechanism.
3. The automatic explosive drying device according to claim 2, characterized in that: The blowing mechanism includes an annular pipe and an air source, the air source is used to convey airflow to the annular pipe, the annular pipe is horizontally arranged above the medicine drying tray, and a plurality of fine holes are opened at the bottom of the annular pipe.
4. The automatic explosive drying device according to claim 3, characterized in that: The medicine rake mechanism includes a medicine rake and a driving part. The output end of the driving part is connected to the medicine rake. The driving part can drive the medicine rake to rotate forward and reverse. The medicine rake is composed of a plurality of blades distributed at intervals in the circumferential direction, and the bottom surface of the blades is provided with teeth.
5. The automatic explosive drying device according to claim 4, characterized in that: The tooth shape is a sawtooth shape with high and low staggered.
6. The automatic explosive drying device according to claim 5, characterized in that: A plurality of limiting blocks are provided on the periphery of the opening of the medicine tray seat, and the limiting blocks are close to the inner wall of the opening and in contact with the side wall of the medicine drying tray.
7. The automatic explosive drying device according to claim 6, characterized in that: The bottom surface area of the medicine drying tray is larger than the outer diameter of the opening.
8. The automatic explosive drying device according to claim 7, characterized in that: The medicine rake is made of soft conductive rubber.
9. The automatic explosive drying device according to claim 8, characterized in that: A plurality of limiting posts are provided on the top surface of the medicine tray holder at intervals in the circumferential direction, and the height of the limiting posts is higher than the residual medicine receiving tray.