JP5034011B2 - Explosion equipment - Google Patents

Description

  The present invention pressurizes and pressurizes a liquid-impregnated material to be crushed, which is introduced from the inlet, into a sealed conveyance path communicating with the discharge port at the distal end and the inlet at the proximal end side by a pressure feeding means. The present invention relates to a blasting apparatus that heats a bomb to be crushed in a pressurized state by a heating means, discharges the bomb to be crushed in a pressurized state from the discharge port, and rapidly depressurizes and blasts.

As shown in FIG. 9, this type of blasting apparatus includes a cylinder 110 having a discharge port 112 at one end and a loading port 111 for loading the material B to be impregnated in water at the other end, A screw feeder 120 that pressure-feeds the detonated material B introduced from the inlet 111 in the cylinder 110 in the axial direction of the cylinder 110 and a heater 130 that heats the vicinity of the discharge port 112 in the cylinder 110 are provided. There is a thing (patent document 1).
Then, in this blasting device, by rotating the screw feeder 120, the material B to be crushed charged from the charging port 111 is transported to the discharge port 112 side and simultaneously compressed, and heated by the heater 130 in the vicinity of the discharge port 112. In addition, the crushed material B in the pressurized and heated state is discharged from the discharge port 112 and at the same time is continuously crushed by rapid pressure reduction.
Japanese Patent Laid-Open No. 10-94736

  The above-described conventional blasting apparatus transports and compresses the material B to be crushed by the screw feeder 120, but the screw feeder 120 in the cylinder 110 pressurizes the pressure in the cylinder 110 to a pressure suitable for blasting due to its structure. If it is difficult and the material to be bombed does not reach a pressure suitable for blasting, a sufficient steam explosion does not occur at the discharge port 112 and the blasting is insufficient.

  The present invention has been made in view of the above circumstances, and impregnates moisture by making the explosion-impregnated material impregnated with water into a high pressure suitable for explosion by continuous compression and maintaining the high-pressure state of the explosive material. It is an object of the present invention to provide a blasting device that transports a compressed blasted material to a discharge port and enables sufficient blasting.

(1) A blasting apparatus according to the present invention comprises:
The liquid-impregnated debris charged from the charging port is pressurized by a pressure-feeding means into a sealed conveyance path that communicates with the discharge port on the front end and the charging port on the base end side. A blasting device that heats crushed material by a heating means, discharges the crushed material in a state of being pressurized and heated from the discharge port, and rapidly depressurizes and blasts,
The conveyance path is provided with a compression section having at least two compression passages having a small diameter,
The pressure-feeding means is constituted by a reciprocating motion mechanism that alternately presses and pressurizes a material to be crushed in a sealed state in each compression passage.

  By pushing the material to be crushed into the compression passage whose conveyance path has a small diameter by the reciprocating mechanism, the material to be crushed containing water is compressed to a high pressure. Moreover, since the said reciprocating mechanism pushes an object to be crushed alternately into each compression passage having at least two, the compressed object to be crushed can be continuously conveyed downstream without interruption. Therefore, it is possible to continuously convey the detonated material maintaining a high-pressure compression state to the discharge port.

(2) In the explosion device,
The reciprocating mechanism comprising a piston having one end freely inserted into the compression passage;
A screw feeder that continuously conveys the material to be crushed charged from the charging port to the compression unit by rotational movement;
Same or separate the reciprocating mechanism and the screw feeder by the drive source may be pressurized indentation in the closed state exposure grinds by being exercise.

In this case, the material to be crushed charged from the charging port is conveyed to the compression unit at a substantially constant volume by the screw feeder, and then subdivided into the compression passages little by little by the piston of the reciprocating mechanism. Since it is pushed in and continuously compressed, the explosion is continuously performed without applying a sudden pressure change to the explosion device, and the operation of the entire explosion device can be stably performed.
In this case, the screw feeder and the piston may be driven by separate drive sources.

(3) In the explosion device,
The reciprocating mechanism comprising a piston having one end freely inserted into the compression passage and a slider that is supported so as to be able to advance and retreat, connects the other end of the piston, and provides a cam follower;
A screw feeder that continuously conveys the material to be crushed charged from the charging port to the compression unit by rotational movement;
A cam mechanism for reciprocating the piston by moving the slider forward and backward by inserting and rotating a cam follower of the slider in a cam groove formed around the outer peripheral surface;
A sun gear connected to the screw feeder and a planetary gear meshed between the sun gear and a ring gear and connected to the cam mechanism are provided. When the sun gear is rotated by a driving source, the screw feeder is rotated. And a gear mechanism in which the planetary gear revolves and the cam mechanism is rotated.

In this case, the material to be crushed charged from the charging port is conveyed to the compression unit at a substantially constant volume by the screw feeder, and then subdivided into the compression passages little by little by the piston of the reciprocating mechanism. Since it is pushed in and continuously compressed, the explosion is continuously performed without applying a sudden pressure change to the explosion device, and the operation of the entire explosion device can be stably performed.
In this case, the screw feeder and the piston can be easily and simply driven in synchronization with one drive source without providing a plurality of drive sources.

(4) In the explosion device,
The compression section includes two or more compression passages through which the bomb debris passes, and a merging section in which each compression passage merges with a cross-sectional area wider than the compression passage, thereby providing a backflow prevention means for the bomb debris. It may be configured.

In this case, since the merged portion has a wider cross-sectional area than each compression passage, the debris that has been pumped to the merge portion and the moisture contained in the debris flow into the other compression passages. Can be prevented. Therefore, it is possible to prevent the moisture contained in the detonated material that has been pumped to the merging portion from flowing back to the upstream side through another compression passage, and to prevent the moisture from escaping from the detonated material during compression. . Therefore, the high pressure state of the material to be crushed can be maintained.
In addition, as the said junction part, what spreads in a taper shape downstream may be sufficient, and the thing of various shapes, such as what spreads in a downstream step shape, is employable.

(5) In the explosion device,
A heating cylinder provided with the heating means provided at a downstream position of the compression unit and configured to heat the material to be crushed and fed from the compression unit to a pressurized state;
A blasting portion having a movable shaft disposed in the discharge port at the tip of the heating cylinder and having a tapered portion facing the discharge port and movable in the axial direction;
Propulsion means for imparting thrust to the movable shaft to urge the tapered portion toward the discharge port;
Detecting means for detecting temperature or pressure in the vicinity of the discharge port in the heating cylinder;
The propulsion means is controlled so that the inside of the heating cylinder is maintained at a constant temperature or pressure by the output from the detection means, or the heating means is maintained so that the inside of the heating cylinder is maintained at a constant temperature or pressure. And a control means for controlling.

Moisture in the material to be crushed is heated by heating from the heating means, so that the material to be crushed becomes a high temperature and high pressure state suitable for blasting, and in the blasting portion, the explosion is exposed from the gap between the discharge port and the outer periphery of the tapered portion of the movable shaft. When the crushed material is discharged, the moisture in the crushed material in a high temperature and high pressure state is rapidly depressurized and vaporized to cause a steam explosion, and the blasting proceeds continuously.
The control means reduces or increases the thrust of the propulsion means in response to the output from the detection means that changes depending on the supply speed of the material to be crushed, etc., thereby increasing the taper of the movable shaft. The opening area of the part and the discharge port is continuously changed, so that the temperature or pressure of the material to be crushed can be controlled to a constant value, and the continuous blasting of the material to be crushed in the blasting part can be stably performed. Can continue.
Further, the temperature or pressure in the vicinity of the discharge port can be kept constant by reducing the heating means (including heating stop) or increasing the heating means in response to the output from the detecting means. It can be controlled, and the continuous explosion of the material to be crushed in the blasting section can be stably continued.

  As described above, according to the present invention, it is possible to continuously convey a compressed crushed object impregnated with a predetermined amount of moisture into the discharge port to a high pressure state, and thus the bomb crushed object can be satisfactorily continuously. Can be blasted.

Embodiments of the present invention will be described below with reference to the accompanying drawings.
As shown in FIG. 1 and FIG. 2, the blasting apparatus according to the embodiment includes a cylindrical column 1 into which a liquid-impregnated bomb to be crushed B is charged and a front side of the column 1 to compress the bomb to be crushed B. Compression block (compression unit) 2, screw feeder 3 for conveying the detonated material B put into the column 1 to the compression block 2, and detonated material B conveyed by the screw feeder 3 are compressed in the compression block 2 4 pistons (reciprocating motion mechanism) 4 for heating, a heating cylinder 5 provided at the front part of the compression block 2 for heating the object B to be crushed, and a front part of the heating cylinder 5 provided for the object B And a blasting head (blasting part) 6 for performing the blasting. In addition, each internal space (10, 21, 22, 50) of the column 1, the compression block 2, and the heating cylinder 5 forms a continuous conveyance path for conveying the material B to be crushed. In addition, examples of the material B to be crushed include waste paper impregnated with water.

  3 (a) and 3 (b), the column 1 is provided with a loading port 11 for loading the material to be crushed B on the outer peripheral surface, and the inside of the column 1 is a conveyance path for conveying the material to be crushed B. Has become a department. Although not shown, a hopper provided with a pushing device may be attached to the insertion port 11. A screw feeder 3 is disposed in the column 1 (see FIG. 2), and the material B to be blasted introduced into the column 1 from the insertion port 11 by the rotation of the screw feeder 3 is conveyed to the front compression block 2. Is done. Further, a first flange 12 and a second flange 13 are formed on the outer peripheral surface of the column 1 in the front-rear direction. Each of the first flange 12 and the second flange 13 is provided with four guide holes 12 a to 12 d and four guide holes 13 a to 13 d for inserting and guiding the piston 4 that pressurizes and compresses the material B to be crushed by the compression block 2. ing. A taper cam 7 for reciprocating the pistons 4 is disposed at the rear of the column 1 (see FIGS. 1 and 2).

  4 (a) and 4 (b), the taper cam 7 is formed in the shape of a truncated cone having a reduced diameter in the front, and the outer circumferential surface of the taper cam 7 is a single cam that rotates once in the circumferential direction. A groove 71 is formed. The cam groove 71 is formed so as to incline relatively steeply from the vicinity of the rear end to the vicinity of the center, and to be gradually inclined from the vicinity of the center to the vicinity of the front end. It is formed with a gradient. Four rectangular sliders 40 with the piston 4 attached to the front end are arranged on the outer periphery of the taper cam 7 at intervals of 90 degrees in the circumferential direction (see FIG. 1). Each piston 4 is inserted into each of the guide holes 12 a to 12 d and 13 a to 13 d formed in the first flange 12 and the second flange 13 of the column 1, and the front portion thereof is inserted into the compression block 2. Is done.

  Each slider 40 has a cam follower 41 projecting from an inner surface facing the outer peripheral surface of the taper cam 7, and the cam follower 41 is disposed in a cam groove 71 of the taper cam 7 (see FIG. 1). Each slider 40 has two slide shafts 42 inserted into both ends thereof and is disposed so as to be able to advance and retreat. Each slide shaft 42 is disposed on the rear flange 9 and the column 1 disposed on the rear end of the taper cam 7. It is installed between the first flange 12 (see FIG. 1). Accordingly, when the taper cam 7 rotates, each slider 40 is guided to the cam groove 71 and moves forward and backward. At this time, the four sliders 40 arranged at intervals of 90 degrees are sequentially advanced and retracted one by one along the cam grooves 71 of the taper cam 7 with different phases, so that each piston 4 is sequentially moved one by one. Will be reciprocated.

That is, in the present embodiment, the cam groove 71 has a relatively large inclination from the 0-degree position to the vicinity of the 360-degree position, and gradually decreases from the middle to the front end from the vicinity of the rear end of the taper cam 7. The taper cam 7 is formed so as to be inclined in a convex shape near the front end of the taper cam 7 from the vicinity of the 360 degree position to the 360 degree position (FIGS. 4A and 4B). ). Therefore, as shown in FIG. 5, each piston 4 protrudes quickly at the initial stage (position from the 0 degree position of the cam groove 71 to 180 degrees), and is late (around the position from the 180 degree position of the cam groove 71 to 360 degrees). Then, it is slowly projected, and then driven to move backward at once.
This is because the volume in the compression passage 22 is large and the density of the explosive material B is low at the initial stage of pushing the explosive material B into the compression passage 22 by the piston 4, so that the piston 4 is moved forward rapidly to push the explosive material B all at once. Then, as the piston 4 is inserted into the compression passage 22, the volume in the compression passage 22 decreases and the density of the crushed object B increases. Therefore, in the latter stage, the piston 4 is moved relatively slowly so that the crushed object B is removed. This is because the pressure is gradually pushed in.

  Further, a bottom wall 72 having a shaft hole 70 formed in the center is formed at the rear portion of the taper cam 7, and the rear end shaft portion of the screw feeder 3 is pivotally supported by the shaft hole 70. Further, three pins 73 are provided around the shaft hole 70 on the outer surface of the bottom wall 72. A rear flange 9 provided with a gear mechanism 8 that drives the screw feeder 3 and the taper cam 7 synchronously is disposed at the rear end of the taper cam 7.

  As shown in FIG. 6, the gear mechanism 8 includes a cylindrical ring gear 80, a sun gear 81 arranged at the center, and three planets arranged in mesh between the sun gear 81 and the ring gear 80. And a gear 83. The rear end shaft portion of the screw feeder 3 exposed from the shaft hole 70 of the bottom wall 72 of the taper cam 7 is connected to the shaft portion 82 of the sun gear 81, while the bottom of the taper cam 7 is connected to each of the three planetary gears 83. Three pins 73 provided on the wall 72 are connected. The sun gear 81 is connected to a motor shaft of a motor (drive source) M disposed at the rear portion of the rear flange 9. Accordingly, when the sun gear 81 is rotated by driving the motor M, the three planetary gears 83 revolve around the sun gear 81, and the screw feeder 3 is rotated by the rotation of the sun gear 81, while each planetary gear 83 is rotated. The taper cam 7 is rotated by the revolution of the gear 83 and each slider 40 is guided to the cam groove 71 of the taper cam 7 to move back and forth so that each piston 4 sequentially reciprocates one by one.

  The compression block 2 is also referred to in FIGS. 7 (a), 7 (b) and FIG. 8, and in the interior thereof, a buffer portion 21 composed of a space formed in a substantially frustoconical shape, a communication with the buffer portion 21, and other There are provided four compression passages 22 having a smaller diameter than the conveyance space, and a joining portion 23 formed by joining the ends of the respective compression passages 22 opposite to the side communicating with the buffer portion 21. In the buffer part 21, the front-end | tip part of the screw feeder 3 is arrange | positioned, and the to-be-destructed material B conveyed by the screw feeder 3 is stored temporarily (refer FIG. 2). Each piston 4 attached to the tip of each slider 40 is inserted into and removed from each compression passage 22 by reciprocating motion.

  Therefore, when the screw feeder 3 is rotated and the taper cam 7 is rotated by driving of the motor M, the material B to be crushed in the column 1 by the rotation of the screw feeder 3 is conveyed into the buffer portion 21. As the taper cam 7 rotates, the sliders 40 move back and forth, and the piston 4 moves forward. As a result, the material to be crushed B conveyed into the buffer portion 21 is substantially sealed and pushed into the compression passage 22 and compressed. At this time, since the four pistons 4 are moved forward one by one in different phases one after another, the detonated material B in the buffer portion 21 is sequentially pushed into the four compression passages 22. Since the passage 22 is merged at the junction 23 at the downstream end, as a result, the material B to be crushed is continuously compressed without interruption and is pumped into the front heating cylinder 5.

  In addition, the detonated material B pushed into each compression passage 22 is separated from the detonated material B stored in the upstream buffer portion 21 by each piston 4 and is compressed in the compression passage 22.

As shown in FIG. 8A, the joining portion 23 at the downstream end of each compression passage 22 has a cylindrical shape with a straight outer peripheral wall, and the inclination angle becomes small in the vicinity of the joining portion 23 of each compression passage 22. Therefore, the merging portion 23 has a wider cross-sectional area than each compression passage 22. Then, the detonated material existing in the confluence 23 is pumped by the reciprocating mechanism, so that the debris is accommodated in the confluence 23 in a high density state without any gaps. Therefore, the debris is crossed from the confluence 23 through the confluence 23. The flow does not flow back into each compression passage 22 having a small diameter. As described above, it is possible to prevent the detonated material B that has been pressure-fed to the junction 23 from flowing into the other compression passages 22. That is, the compression passage 22 and the merging portion 23 constitute a backflow prevention means for the material to be crushed.
As shown in FIG. 8B, the joining portion 23 of the compression block 2 has a wider cross-sectional area than the compression passages 22 because the outer peripheral wall of the joining portion 23 ′ is tapered to the open end. Various shapes, such as being expanded like a staircase, may be employed.

  As shown in FIG. 2, the heating cylinder 5 has a heater (heating means) 51 embedded in its peripheral wall, and the detonated material B that is pressure-fed to the conveyance path 50 in the heating cylinder 5 by the heat generated by the heater 51 Heated. The heating temperature in the heating cylinder 5 is set to 130 ° C. to 160 ° C. when the material B to be crushed is waste paper. A discharge port 52 communicating with the internal conveyance path 50 is provided at the tip of the heating cylinder 5.

As shown in FIG. 2, the blasting head 6 is attached to the tip of the heating cylinder 5, and an open port 60 is formed below and a movable shaft 62 facing the discharge port 52 of the heating cylinder 5 is inserted and disposed. A cylindrical portion 61 is provided for this purpose. The movable shaft 62 has a conical tapered portion 621 at the tip, and the tip tapered portion 621 is urged toward the discharge port 52 by a propulsion means 63 such as a hydraulic cylinder. The thrust in the axial direction of the propulsion means 63 is set so that the pressure of the material to be crushed B discharged from the discharge port 52 of the heating cylinder 5 becomes a value suitable for blasting. In other words, the amount of heat supplied by the heating cylinder 5, the pressure by the piston 4 in the compression block 2, the supply speed of the material B to be crushed, and the thrust of the propulsion means 63 are balanced, and the discharge by the tapered portion 621 of the movable shaft 62. The degree of blockage of the outlet 52 is automatically determined. As a result, the material B to be crushed is discharged from the outer peripheral gap of the taper portion 621 and is rapidly depressurized, and the water in the material B is crushed by causing a steam explosion.
As an example of actual operation, when the inner diameter of the heating cylinder 5 is 40 mm, the temperature of the heating cylinder 5 is set to 150 ° C., the material to be crushed is pushed by the piston 4 at 30 MPa, and the pressure of the propulsion means 63 is set to 6 MPa. Was confirmed to be blasted.

  Further, when the internal pressure in the heating cylinder 5 becomes abnormally high, the thrust by the propulsion means 63 becomes insufficient from the state in which the explosion is performed, so that the movable shaft 62 moves backward, thereby increasing the opening of the discharge port 52 and making it movable. The discharge amount of the detonated material B from the outer peripheral gap of the tapered portion 621 of the shaft 62 increases, and the pressure in the heating cylinder 5 decreases. Thereby, abnormal pressurization and abnormal heating in the present explosion apparatus can be prevented.

  As described above, according to the blasting apparatus according to the present embodiment, the material B to be impregnated with the moisture introduced from the inlet 11 is conveyed to the compression block 2 by the screw feeder 3 at a substantially constant volume, The four pistons 4 are sequentially pushed into the respective compression passages 22 in small portions and pressurized. The pressurized material B is heated by the heating cylinder 5 and finally discharged from the outer peripheral gap of the taper portion 621 at the explosion head, and the material B is rapidly decompressed and exploded.

  In addition, the four pistons 4 sequentially push the crushed material B into the respective compression passages 22 in different phases, so that the compressed crushed material B is continuously pumped to the downstream heating cylinder 5 without interruption. can do. Therefore, the compressed material B in a compressed state impregnated with a predetermined amount of water can be continuously conveyed to the discharge port 52, and the material B to be bombed can be continuously crushed well at the discharge port 52.

  In addition, since the compression of the material B to be crushed is performed by subdividing it into the four compression passages 22 little by little, a sudden pressure change is not applied to the blasting device, and the operation of the entire blasting device is performed stably. Can do.

  In addition, since the screw feeder 3 and each piston 4 are driven by the single motor M via the gear mechanism 8, the screw feeder and the piston are driven easily and simply in synchronization without providing a plurality of motors. be able to.

(Other embodiments)
In the blasting apparatus, the inside of the heating cylinder 5 is maintained at a constant temperature or pressure by a detection means (not shown) for detecting the temperature or pressure in the vicinity of the discharge port 52 and an output from the detection means. Control means (not shown) for controlling the heater 51 so as to control the propulsion means 63 or to maintain the inside of the heating cylinder 5 at a constant temperature or pressure may be provided.

When the temperature or pressure in the vicinity of the discharge port 52 exceeds the upper limit of a predetermined set value, the control means is responsive to the output from the detection means in combination with the control of the propulsion means 63 or alone. You may make it make the heater 51 of the cylinder 5 into a heating reduction state (a heating stop is also included).
As a result, the internal pressure of the heating cylinder 5 decreases as the temperature in the heating cylinder 5 decreases. Therefore, the abnormal increase in temperature or pressure near the discharge port 52 is eliminated, and continuous explosion of the material B to be crushed in the explosion head 6 is continued. can do.

When the temperature or pressure in the vicinity of the discharge port 52 is lower than the lower limit of a predetermined set value, the control means is responsive to the output from the detection means in combination with the control of the propulsion means 63 or alone. You may make it make the heater 51 of the cylinder 5 into a heating increase state.
As a result, the internal pressure rises as the temperature in the heating cylinder 5 rises, so that an abnormal drop in temperature or pressure near the discharge port 52 is eliminated, and continuous explosion of the detonated material B in the explosion head 6 is continued. be able to.

(Other)
In addition, this invention is not limited only to the above embodiment, A various design change can be given.
For example, although four compression passages 22 of the compression block 2 are provided, it is sufficient that at least two compression passages 22 are provided.
The slider 40 is provided with one piston 4, but a plurality of pistons 4 may be provided.
Further, although three planetary gears 83 of the gear mechanism 8 are provided, one or more than two may be provided.
Further, the screw feeder 3 and each piston 4 are driven together by the same motor M (drive source) by the gear mechanism 8, but each piston 4 is driven by another drive source such as a hydraulic cylinder. Each piston 4 and screw feeder 3 may be driven by separate drive sources.

It is a perspective view which shows the external appearance structure of the blasting apparatus by embodiment of this invention. It is sectional drawing which shows the internal structure of the blasting apparatus by embodiment of this invention. It is the perspective view which shows the column in a blasting apparatus, The figure (a) is the perspective view seen from one direction, The figure (b) is the perspective view seen from the opposite direction. It is the perspective view which shows the taper cam in a blasting apparatus, The same figure (a) is the perspective view seen from one direction, The same figure (b) is the perspective view seen from the opposite direction. It is a graph which shows the pushing amount of the piston with respect to the rotation angle of a taper cam. It is a perspective view which shows the gear mechanism for driving the screw feeder and each piston in a blasting apparatus. It is the perspective view which shows the compression block in a blasting apparatus, The same figure (a) is the perspective view seen from one direction, The same figure (b) is the perspective view seen from the opposite direction. It is sectional drawing which shows the internal structure of the compression block in a blasting apparatus. It is sectional drawing which shows the structure of the conventional blasting apparatus.

Explanation of symbols

1 Column 2 Compression block 3 Screw feeder 4 Piston (reciprocating mechanism, pressure feeding means)
5 Heating cylinder 6 Explosion head (explosion section)
7 Taper cam 8 Gear mechanism 11 Input port 21 Buffer portion 22 Compression passage 23 Merge portion 40 Slider (reciprocating motion mechanism)
41 cam follower 51 heater (heating means)
52 Discharge port 71 Cam groove B

Claims (5)

The liquid-impregnated debris charged from the charging port is pressurized by a pressure-feeding means into a sealed conveyance path that communicates with the discharge port on the front end and the charging port on the base end side. A blasting device that heats crushed material by a heating means, discharges the crushed material in a state of being pressurized and heated from the discharge port, and rapidly depressurizes and blasts,
The conveyance path is provided with a compression section having at least two compression passages having a small diameter,
The blasting device is constituted by a reciprocating mechanism that presses and pressurizes the material to be crushed alternately in a sealed state in the compression passages. The explosion apparatus according to claim 1,
The reciprocating mechanism comprising a piston having one end freely inserted into the compression passage;
A screw feeder that continuously conveys the material to be crushed charged from the charging port to the compression unit by rotational movement;
A blasting device that pushes and pressurizes an object to be crushed in a sealed state by moving the reciprocating mechanism and the screw feeder by driving the same or different driving sources. The explosion apparatus according to claim 1,
The reciprocating mechanism comprising a piston having one end freely inserted into the compression passage and a slider that is supported so as to be able to advance and retreat, connects the other end of the piston, and provides a cam follower;
A screw feeder that continuously conveys the material to be crushed charged from the charging port to the compression unit by rotational movement;
A cam mechanism for reciprocating the piston by moving the slider forward and backward by inserting and rotating a cam follower of the slider in a cam groove formed around the outer peripheral surface;
A sun gear connected to the screw feeder and a planetary gear meshed between the sun gear and a ring gear and connected to the cam mechanism are provided. When the sun gear is rotated by a driving source, the screw feeder is rotated. And a gear mechanism in which the planetary gear revolves and the cam mechanism is rotated. The explosion apparatus according to any one of claims 1 to 3,
The compression section includes two or more compression passages through which the bomb debris passes, and a merging section in which each compression passage merges with a cross-sectional area wider than the compression passage, thereby providing a backflow prevention means for the bomb debris. The blasting device that composes. The explosion device according to any one of claims 1 to 4,
A heating cylinder provided with the heating means provided at a downstream position of the compression unit and configured to heat the material to be crushed and fed from the compression unit to a pressurized state;
A blasting portion having a movable shaft disposed in the discharge port at the tip of the heating cylinder and having a tapered portion facing the discharge port and movable in the axial direction;
Propulsion means for imparting thrust to the movable shaft to urge the tapered portion toward the discharge port;
Detecting means for detecting temperature or pressure in the vicinity of the discharge port in the heating cylinder;
The propulsion means is controlled so that the inside of the heating cylinder is maintained at a constant temperature or pressure by the output from the detection means, or the heating means is maintained so that the inside of the heating cylinder is maintained at a constant temperature or pressure. And a control means for controlling the blasting device.

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