CN113926345B - Energy-containing solid particle drives and dissolves and mix same device - Google Patents
Energy-containing solid particle drives and dissolves and mix same device Download PDFInfo
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- CN113926345B CN113926345B CN202111272001.8A CN202111272001A CN113926345B CN 113926345 B CN113926345 B CN 113926345B CN 202111272001 A CN202111272001 A CN 202111272001A CN 113926345 B CN113926345 B CN 113926345B
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Abstract
The invention discloses an energetic solid particle dissolving and mixing device, and belongs to the technical field of dissolving and mixing of energetic solid particles. The device comprises a feeding mechanism, a solution-driving mixing mechanism and a discharge hole, wherein a roller of the solution-driving mixing mechanism is sequentially provided with a front cone section, a straight cylinder section and a rear cone section from left to right, a jacket is sleeved outside the front cone section and the straight cylinder section of the roller, and a circulating heat transfer medium is arranged between the jacket and the outer wall of the roller; the mixing shoveling plate is arranged on the inner wall of the straight section of the roller; the discharging guide plate is arranged at the rear cone section part in the roller; the roller driving mechanism is used for driving the roller to rotate forward or reversely; the induced draft system is communicated with the rear cone section of the roller. The method for mixing materials by rotating the drum and the drum wall shoveling plate of the driving-dissolving mixing device has small mechanical stimulation to the materials, and is suitable for preparing explosives and powders with high mechanical sensitivity; the heat of the heat transfer medium in the jacket accelerates the volatilization speed of the solvent in the molding powder, and is suitable for the process of the driving, dissolving and mixing of energetic solid particles with mechanical sensitivity.
Description
Technical Field
The invention relates to an energy-containing solid particle drive-dissolve mixing device, in particular to a JHL series explosive modeling powder particle drive-dissolve mixing device.
Background
The introduction of the process solvent is an important process method in the granulating and forming process of the explosives and powders, can improve the safety of the preparation process and reduce the difficulty of the preparation process, and is widely applied to the manufacturing process of the propellant powder, the mixed explosive and the propellant. When the process solvent is adopted for granulating and forming, the requirements of the process solvent for the dissolution and mixing process are provided for the manufacturing process in order to meet the technical requirements of the explosive products on quality consistency and volatile content.
The process of dissolving and mixing the granular explosives and powders is completed in two independent working procedures, and the dissolving and dispersing process adopts belt type hot air to dissolve and has the problems of large occupied area of the device, and uneven heating of materials caused by difficult control of heat distribution; the mixing process of the granular explosives and powders is generally carried out in a Taraxoff mixer, and the method has low automation degree, high labor intensity and intrinsic safety risk. At present, no report is available on coupling two processes of dissolution and mixing into the same process equipment.
The spray granulation method reported by CN105218279 is a novel and efficient preparation process of the explosive modeling powder, and in order to ensure the processability of materials and improve the mixing efficiency, a process solvent is required to be introduced in the preparation process, so that the explosive modeling powder prepared by spray granulation has the requirement of dissolving. In addition, for the continuous preparation process of spray granulation, the consistency of the residence time of the materials at the same position in the device is difficult to control, so that the consistency of the quality of discharged materials is difficult to ensure, and the products prepared in multiple batches are required to be subjected to mixing treatment (batch mixing) before packaging.
For JHL series explosives, the explosive mainly comprises black-powder, ball-milled aluminum powder and an insensitive binder system, a spray granulation continuous process is adopted in a manufacturing process, and the JHL series finished products produced by the process have high volatile content and poor quality consistency and are required to be subjected to drive-dissolve mixing treatment. The adoption of hot air for driving and dissolving can promote the aluminum powder of the JHL series explosive semi-finished product to fly, so that the component deviation of the explosive is overlarge, the quality of the product is affected, and the product index requirement cannot be met.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provides an energy-containing solid particle dissolving and mixing device which is used for coupling dissolving and mixing in the same equipment for the first time.
The invention provides an energy-containing solid particle dissolving and mixing device, which comprises a feeding mechanism, a dissolving and mixing mechanism and a discharge hole, wherein the dissolving and mixing mechanism comprises:
the roller comprises a front cone section, a straight cylinder section and a rear cone section which are sequentially arranged from left to right, and a feeding mechanism is connected with the front cone section of the roller and used for conveying materials into the roller; the discharge hole is positioned at the tail end of the rear cone section of the roller;
the jacket is sleeved outside the front cone section and the straight cylinder section of the roller, and a circulating heat transfer medium is arranged between the jacket and the outer wall of the roller;
the mixing shoveling plate is arranged on the inner wall of the straight section of the roller;
the discharging guide plate is arranged at the rear cone section part in the roller;
the roller driving mechanism is used for driving the roller to rotate positively or reversely;
and the induced air system is communicated with the rear cone section of the roller and is used for providing negative pressure.
Preferably, the helix angle of the mixing shoveling plate is 15-20 degrees, and the height is 30-35 mm.
Preferably, the spiral angle of the discharging guide plate is 60-65 degrees, and the depth is 300-350 mm.
Preferably, the inner diameter of the straight section of the roller is 1100-1300 mm, and the length of the straight section is 1000-1100 mm; the length of the front cone section is 500-650 mm; the length of the rear cone section is 200-300 mm, and the diameter of the discharge hole is 800-850 mm.
Preferably, the feeding mechanism comprises a motor, a screw conveying mechanism and a hopper; one end of the screw conveying mechanism is connected with the motor 7, the other end of the screw conveying mechanism extends into the front cone section of the roller, and the charging hopper is positioned above the end, close to the motor, of the screw conveying mechanism.
Preferably, the screw conveying mechanism is further sleeved with a rotary joint, the rotary joint is communicated with a heat transfer medium circulating channel formed between the jacket and the outer wall of the roller, and the rotary joint is connected with the outer wall of the roller through a bearing.
Preferably, the roller driving mechanism comprises a transmission belt, a spindle motor case and a spindle motor; the main shaft of the roller is connected with the main shaft motor through a transmission belt, and the transmission belt and the main shaft motor are positioned in a main shaft motor box.
Preferably, the tail end of the straight section of the drum is provided with a flange.
Compared with the prior art, the invention has the beneficial effects that: the device adopts a horizontal roller design, the cylinder wall is provided with the shoveling plate, the jacket is arranged outside the cylinder, firstly, the molding powder semi-finished product is put into the feed inlet, the material is conveyed into the roller through the single screw conveying device, the process of driving, dissolving and mixing is realized simultaneously along with the rotation of the roller, and the mechanical stimulation to the material is small in a mode of combining the rotation of the roller with the mixing of the material by the shoveling plate of the cylinder wall, so that the device is suitable for preparing explosives and powders with high mechanical sensitivity; the heat of the heat transfer medium in the jacket can accelerate the volatilization speed of the solvent in the molding powder. The device is suitable for the process of the drive-dissolve mixing of energetic solid particles with mechanical sensitivity.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIGS. 2a-2d are schematic views showing the direction of the discharged materials under the action of resultant force when the drum of the present invention rotates forward or backward;
FIG. 3 is a schematic view of the design of the angle of attack of the drug surface of the mixing shoveling plate of the present invention.
Reference numerals illustrate:
1. the device comprises a roller, a jacket, a mixing shoveling plate, a discharging guide plate, an induced draft system, a motor, a screw conveying mechanism, a hopper, a bearing, a driving belt, a main shaft motor box, a main shaft motor, a rotary joint and a discharging port.
Detailed Description
Specific embodiments of the present invention will be described in detail below with reference to fig. 1-3, but it should be understood that the scope of the present invention is not limited by the specific embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
In the embodiment, the explosive modeling powder for carrying out the drive-dissolution mixing is JHL series explosive, the explosive consists of a black-powder composite explosive and an insensitive binder system, wherein the aluminum powder is flaky aluminum powder FLQ A with a theoretical density of 1.83g/cm 3 。
The invention provides an energy-containing solid particle dissolving and mixing device, which comprises a feeding mechanism, a dissolving and mixing mechanism and a discharge hole, wherein the dissolving and mixing mechanism comprises:
the roller 1 comprises a front cone section, a straight cylinder section and a rear cone section which are sequentially arranged from left to right, and a feeding mechanism is connected with the front cone section of the roller 1 and is used for conveying materials into the roller 1; the discharge hole 15 is positioned at the tail end of the rear cone section of the roller 1;
the jacket 2 is sleeved outside the front cone section and the straight cylinder section of the roller 1, and a circulating heat transfer medium is further arranged between the jacket 2 and the outer wall of the roller 1;
the mixing shoveling plate 3 is arranged on the inner wall of the straight section of the roller 1;
the discharging guide plate 4 is arranged at the rear cone section part in the roller 1;
a drum driving mechanism for driving the drum 1 to rotate forward or backward;
and the induced air system 6 is communicated with the rear cone section of the roller 1 and is used for providing negative pressure.
Further, the spiral angle of the mixing shoveling plate 3 is 15-20 degrees, the height is 30-35 mm, the spiral angle of the discharging guide plate 4 is 60-65 degrees, the depth is 300-350 mm, the inner diameter of the straight barrel section of the roller 1 is 1100-1300 mm, and the length of the straight barrel section is 1000-1100 mm; the length of the front cone section is 500-650 mm; the length of the rear cone section is 200-300 mm, the diameter of the discharge hole is 800-850 mm, the basic technical effects of the invention can be realized in the parameter ranges, and the optimal parameters after the test are selected in the embodiment:
the spiral angle of the mixing and shoveling plate 3 is 15 degrees, the height is 30mm, the spiral angle of the discharging guide plate is 60 degrees, and the depth is 300mm. The inner diameter of a straight section of the roller 1 is 1200mm, and the length of the straight section is 1000mm; the front cone section has a length of 500mm; the length of the rear cone section is 200mm, and the diameter of the discharge hole is 800mm.
Further, the feeding mechanism comprises a motor 7, a screw conveying mechanism 8 and a hopper 9; one end that screw conveying mechanism 8 connects is connected with motor 7, and the other end extends to inside the preceding cone section of cylinder 1, loading hopper 9 is located screw conveying mechanism 8 and is close to the tip top of motor 7, screw conveying mechanism 8 outside still overlaps and is equipped with rotary joint 14, rotary joint 14 communicates with the heat transfer medium circulation channel that forms between the outer wall of jacket 2 and cylinder 1, rotary joint 14 and cylinder 1's outer wall passes through bearing 10 and connects. It should be noted that a supporting mechanism is also arranged below the feeding mechanism.
Further, the drum driving mechanism 5 includes a transmission belt 11, a spindle motor housing 12, and a spindle motor 13; the rear cone section of the roller 1 is connected with a spindle motor 13 through a transmission belt 11, and the transmission belt 11 and the spindle motor 13 are positioned in a spindle motor case 12. The driving belt 11 is driven by the spindle motor 13, and the drum 1 is driven to rotate forward or backward by the driving belt 11.
Further, the end of the straight section of the drum 1 is provided with a flange. Aims to realize the opening and closing of the roller.
In this embodiment, the motor 7 is located at the left side of the screw conveying mechanism 8, the screw conveying mechanism 8 is located at the lower side of the hopper 9, and is horizontally placed, the hopper 9 is located at the upper side of the screw conveying mechanism 8, the vertical placement is performed, the rotary joint 14 is located at the right side of the screw conveying mechanism 8, the bearing 10 is located at the right side of the rotary joint 14, the roller 1 is located at the right side of the bearing 10, the mixing and shoveling plate 3 is located at the inner wall of the straight section of the roller 1, the discharging guide plate 4 is located at the inner wall of the rear cone section of the roller 1, the jacket 2 is located at the outer wall of the roller 1, the induced air system 6 is located at the upper right side of the roller 1, the discharging port 15 is located at the lower right side of the roller 1, the main shaft motor case 12 is located at the right side of the induced air system 6, the main shaft motor 13 is located at the lower inside of the main shaft motor case 12, and the driving belt 11 is located between the main shaft motor 13 inside the main shaft motor case 12 and the main shaft of the roller 1. After the materials to be driven and dissolved and mixed enter a charging hopper 9, a motor 7 drives a screw conveying mechanism 8 to rotate, and the materials are conveyed in a rotating way through the screw conveying mechanism 8 and enter a roller 1; the heat transfer medium enters the jacket for internal circulation through the rotary joint 14 to complete heat exchange; after the materials enter the roller 1, the main shaft motor 13 drives the roller 1, the bearing 10 and the rotary joint 14 to rotate positively through the transmission belt 11, the materials are uniformly mixed under the action of the mixing shoveling plate 3 in the forward rotation process of the roller 1, the driving and dissolving are completed under the action of the heating and air inducing system 6 of the jacket 2, after the driving and dissolving mixing are completed, the main shaft motor 13 drives the roller 1, the bearing 10 and the rotary joint 14 to rotate reversely through the transmission belt 11, and the materials are pushed to the discharge hole 15 for discharging under the action of the reversing process of the roller 1 and the discharge guide plate 4.
The key components of the energy-containing solid particle dissolving and mixing device of the embodiment are a mixing shoveling plate 3 in the straight barrel section and a discharging guide plate 4 in the rear cone section. The straight section is mainly used for completing the mixing of a large amount of materials in the cylinder, so that the mixing shoveling plate 3 with a large shoveling plate height is needed, and the mixing of the section also needs to generate the mixing effect along the axial direction of the cylinder, so that the mixing shoveling plate needs to have a certain included angle with the axial direction of the cylinder. Meanwhile, the quantity of the materials is larger, so that more serious dust is prevented from being generated by bringing excessive materials above the axis of the drum, and the quantity of the mixing shoveling plates 3 is smaller. The back cone section is mainly used for completing the reverse discharging function, and then a certain taper can be matched with the straight cylinder section to complete a certain amount of material accumulation and mixing, so that a discharging guide plate 4 is designed in the back cone section on the basis of a cone structure, and the depth and the angle of the discharging guide plate jointly determine the discharging efficiency. The key technological parameter of the mixing device is the rotating speed of the roller. The height of the mixing shoveling plate 3 and the rotation speed of the roller determine the quality of the mixing effect. When the materials enter the roller 1, the materials roll in the roller 1 under the action of the rotation of the roller 1 and the mixing shoveling plate 3. The lowest uniformity achieved by blending gradually decreases as the height of the blending blade 3 is higher, because the uniformity of the material before and after the blending blade is not high, and the higher the blade is, the more remarkable the unevenness is. The smaller the difference between the average temperature and the minimum temperature, the more uniform the mixing, as the rotation speed of the drum 1 is greater. And (3) selecting different heights of the shoveling plates and different rotating speeds of the rollers, testing the mixing effect and the mixing efficiency of the materials at the same temperature, and when the height of the mixing shoveling plate 3 is 30mm and the rotating speed of the roller 1 is 15rmp, optimizing the mixing effect and the mixing efficiency.
The automatic discharging principle of the embodiment: the mixing shoveling plate 3 and the axis of the roller 1 have a 15-degree spiral angle, and the discharging guide plate 4 and the axis of the roller 1 have a 60-degree spiral angle. As shown in fig. 2a-2d, when the roller 1 rotates positively, the material is driven and dissolved in the straight section of the roller 1 all the time in the forward rotation process of the roller 1 because the resultant force F of the material is directed into the roller 1 under the action of the gravity G, the supporting force FN1 of the mixing shoveling plate 3 and the discharging guide plate 4; when the roller 1 is reversed, the material is directed to the outside of the roller 1 in the resultant force F combining direction under the action of the gravity G, the supporting force FN2 of the mixing shoveling plate 3 and the discharging guide plate 4, so that the material continuously moves to the discharging hole 15 in the reversing process of the roller 1, and discharging is completed.
The height, number and rotation speed of the mixing shoveling plates 3 determine the quality of the mixing effect.
And (3) designing the height of the mixed shoveling plate: the uniformity of mixing is characterized by standard deviation, the model is divided into 70 x 1 x 70 grids by using the grid bin group function of the EDEM, 4900 units are added, and the number of two particles of each unit is derivedEliminating the units with the total number of particles less than 5, calculating the ratio of the total a particles to the total particle number of the units with the total number of particles being 5, and solving the standard deviation of the total a particles to the theoretical 2:3:
smaller values indicate more uniform results.
Different shoveling plate heights are respectively 10mm, 20mm, 30mm and 40mm, and influence rules on material uniformity are designed. The material was gradually uniform over time, the standard deviation fluctuated between 0.2 and 0.3, and the time spent was the shortest when the standard deviation reached 0.35 and the shoe plate height was 30mm and 40mm, but as the shoe plate height increased, the lowest uniformity achievable with the mixing was gradually decreased, because the material uniformity was not high at the front and rear of the shoe plate, the higher the shoe plate height was, the more significant the non-uniformity was. Therefore, the h is 30mm as the optimal height of the shoveling plate, which is beneficial to improving the mixing speed and can achieve ideal uniformity.
As shown in fig. 3, the angle design of the medicine facing surface of the mixing shoveling plate:
because the device is used for the drive-dissolution mixing of the energetic material, the energetic material can collide with the mixing shoveling plate in the drive-dissolution mixing process, the impact is characterized by impulse for stimulating the material, the impulse is the product of force and action time, the larger the force is, the higher the energy is, and the higher the probability of danger is. The relationship between the impulse I and the angle of attack α is expressed by the following formula:
I＝F·COSα·t
wherein F is the acting force of the material facing the medicine, and t is the acting time; when the rotating speed of the roller is fixed, the acting time t is unchanged, the impulse I is reduced along with the increase of the medicine facing angle alpha, however, the mixing effect is affected when the medicine facing angle alpha is increased to a certain degree, so that the medicine facing angle alpha is not excessively large.
Spiral angle design of a discharging guide plate 4:
in order to determine the optimal spiral angle of the discharge guide plate, four angles of 40 degrees, 50 degrees, 60 degrees and 70 degrees are selected respectively to study the discharge efficiency of the materials, and table 1 shows experimental results, and as can be seen from table 1, the discharge time of the same spiral angle is reduced along with the increase of the rotating speed; at the same drum rotation speed, the discharge time is firstly reduced and then increased along with the increase of the helix angle, and the discharge time is shortest when the helix angle is 60 degrees, so that the helix angle of the discharge guide plate is selected to be 60 degrees.
TABLE 1 influence of discharge guide helix angle on discharge time
And (3) deep design of a discharging guide plate:
in order to determine the optimal depth of the discharging guide plate, four depths of 200mm, 300mm, 400mm and 500mm are selected respectively to study the discharging efficiency of the materials, and table 2 shows the experimental results, and the deeper the discharging guide plate is, the shorter the discharging time is under the same rotating speed. This is because the deeper the discharge guide, the more material the drum rotates one revolution, and the less time is required. However, the deeper the discharge guide plate is, the larger the free volume is in the forward rotation process of the roller, the lower the utilization efficiency of the roller is, and the depth of the guide plate is determined to be 300mm by considering the discharge efficiency and the utilization efficiency of the roller.
TABLE 2 influence of discharge guide depth on discharge time
The application method of the energy-containing solid particle driving-dissolving mixing device of the embodiment is as follows:
the method comprises the steps of placing materials to be driven and mixed into a charging hopper 9, starting a motor 7, enabling the motor 7 to drive a screw in a screw conveying mechanism 8 to rotate, enabling the materials in the charging hopper 9 to enter a roller 1 under the action of a rotating screw, starting a spindle motor 13 in a spindle motor case 12 to rotate positively, enabling the spindle motor 13 to drive the roller 1 to rotate positively through a transmission belt 11, setting the rotating speed to be 15rpm, enabling the materials to be mixed under the action of a mixing shoveling plate 3 in the roller 1 and the roller, enabling the materials to volatilize solvents in the materials under the action of heat released by a heat transfer medium in a jacket 2 while mixing, generating negative pressure in the roller 1 by an induced air system 6, enabling the volatilized solvents to be discharged out of the roller 1, enabling the spindle motor 13 in the spindle motor case 12 to rotate reversely through the transmission belt 11 after the driving of the mixing, enabling the materials to be pushed to a discharging port to complete discharging under the action of the reversing roller 1, the mixing shoveling plate 3 and a discharging guide plate 4, and obtaining a finished product.
The finished product prepared by adopting the energy-containing solid particle dispersing and mixing device has good quality consistency and good flowability, and the volatile content meets the explosive index requirement.
The embodiment contains the energy solid particle and drives and dissolve the mixing device. In order to verify the dissolution-driving effect of the dissolution-driving mixing device for the energetic solid particles, a dissolution-driving effect test is designed.
Tiling the material before and after the mixture is dissolved in a driving way in two trays with the same depth of 100mm, and taking 4 groups of samples at different positions and different depths to test the volatile content, wherein the test data are as follows:
in order to verify the mixing effect of the energy-containing solid particle driving-dissolving mixing device, a mixing effect test is designed.
And (3) drying the materials before the mixture of the flooding and the dissolving, so that the volatile component content of the materials is kept at the same level as that of the materials after the mixture of the flooding and the dissolving, then tiling the two materials in two trays which are identical and have the depth of 100mm, and taking 6 groups of samples at different positions and different depths for component content testing.
The miscibility effect of the energetic solid particle drive-dissolve miscibility device is characterized by the variance of the test data. The variance is the average value of the squares of the differences between the actual value and the expected value, and the smaller the variance of the test data is, the smaller the fluctuation of the test data is, and the better the mixing effect of the energy-containing solid particle flooding mixing device is. The variance is calculated by the following formula:
the variance of each component is shown in the following table:
although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a contain can solid particle drive and dissolve and mix same device, its characterized in that includes feed mechanism, drives and dissolve and mix same mechanism and discharge gate (15), wherein drive and dissolve and mix same mechanism and include:
the roller (1) is sequentially provided with a front cone section, a straight cylinder section and a rear cone section from left to right, and the feeding mechanism is connected with the front cone section of the roller (1) and is used for conveying materials into the roller (1); the discharge hole (15) is positioned at the tail end of the rear cone section of the roller (1);
the jacket (2) is sleeved outside the front cone section and the straight cylinder section of the roller (1), and a circulating heat transfer medium is further arranged between the jacket (2) and the outer wall of the roller (1);
the mixing shoveling plate (3) is arranged on the inner wall of the straight barrel section of the roller (1), the spiral angle of the mixing shoveling plate (3) is 15-20 degrees, and the height is 30-35 mm;
the energetic solid particles can generate impact with the mixing shoveling plate (3) in the process of dissolving and mixing, the impact is characterized by impulse I for stimulating the energetic solid particle materials, and the relation between the impulse I and the face angle alpha of the mixing shoveling plate (3) is as follows:
I＝F·COSα·t；
wherein F is the acting force of the material facing the medicine, and t is the acting time;
the discharging guide plate (4) is arranged at the rear cone section part in the roller (1), the helix angle of the discharging guide plate (4) is 60-65 degrees, and the depth is 300-350 mm;
a roller driving mechanism (5) for driving the roller (1) to rotate forward or backward;
and the induced air system (6) is communicated with the rear cone section of the roller (1) and is used for providing negative pressure.
2. The energetic solid particle dissolving and mixing device according to claim 1, wherein the inner diameter of the straight section of the roller (1) is 1100-1300 mm, and the length of the straight section is 1000-1100 mm; the length of the front cone section is 500-650 mm; the length of the rear cone section is 200-300 mm, and the diameter of the discharge hole is 800-850 mm.
3. The energetic solid particle drive-mix apparatus of claim 1, wherein the feed mechanism comprises a motor (7), a screw conveyor mechanism (8) and a hopper (9); one end of the screw conveying mechanism (8) is connected with the motor (7), the other end of the screw conveying mechanism extends into the front cone section of the roller (1), and the charging hopper (9) is positioned above the end part, close to the motor (7), of the screw conveying mechanism (8).
4. A device for mixing and dispersing energetic solid particles according to claim 3, wherein the screw conveying mechanism (8) is externally sleeved with a rotary joint (14), the rotary joint (14) is communicated with a heat transfer medium circulation channel formed between the jacket (2) and the outer wall of the roller (1), and the rotary joint (14) is connected with the outer wall of the roller (1) through a bearing (10).
5. The energetic solid particle drive-mixing apparatus according to claim 1, wherein the roller driving mechanism (5) comprises a transmission belt (11), a spindle motor housing (12) and a spindle motor (13); the main shaft of the roller (1) is connected with a main shaft motor (13) through a transmission belt (11), and the transmission belt (11) and the main shaft motor (13) are positioned in a main shaft motor case (12).
6. The energetic solid particle drive-dissolve mixing device according to claim 1, characterized in that the end of the straight section of the drum (1) is provided with a flange.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB196108A (en) * | 1922-01-24 | 1923-04-19 | William Dalrymple Borland | Improvements in and relating to explosives |
| RU2156159C2 (en) * | 1997-10-15 | 2000-09-20 | Тамбовский государственный технический университет | Drum granulator |
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| GB196108A (en) * | 1922-01-24 | 1923-04-19 | William Dalrymple Borland | Improvements in and relating to explosives |
| RU2156159C2 (en) * | 1997-10-15 | 2000-09-20 | Тамбовский государственный технический университет | Drum granulator |
| RU2179164C1 (en) * | 2001-01-30 | 2002-02-10 | Научно-техническая фирма "Взрывтехнология" | Apparatus for manufacture of industrial explosives |
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| CN206911240U (en) * | 2017-06-27 | 2018-01-23 | 山西北方兴安化学工业有限公司 | A kind of granular material automatically continuously confuses device |
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| CN113926345A (en) | 2022-01-14 |
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