JP2008096026A - Dry type processed object discharging device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a dry type processed object discharging device which is stably driven even under a high temperature atmosphere. <P>SOLUTION: The dry type processed object discharging device has: a fixed-side rail 15 and a free-side rail 16 which are disposed on a bottom portion of an internal area A defined by a casing 4, extend along the moving direction of a pushing-out portion 3 disposed in the internal area A, and are arranged in parallel with each other in the direction orthogonal to the moving direction; and a fixed-side receiving portion 26 guided by the fixed-side rail 15 and a free-side receiving portion 27 guided by the free-side rail 16. The fixed-side receiving portion 26 is engaged with the fixed-side rail 15 to be controlled in its movement in the direction orthogonal to the moving direction, and the free-side rail 16 and the free-side receiving portion 27 are engaged with each other in a state of permitting their expansion and contraction by heat in the direction orthogonal to the moving direction. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a dry process product discharging apparatus.

Conventionally, it has a casing that deposits the pyrolysis residue (processed material) that has been heat-treated in the pyrolysis reactor, and the inlet side is made airtight with respect to the discharge port side by the pyrolysis residue deposited in the casing. There is known a pyrolysis residue transfer mechanism (dry process discharge device) that seals and drives the piston back and forth by an air cylinder to push out and discharge the pyrolysis residue to the discharge port (see, for example, Patent Document 1). .
JP 09-296919 A

  However, in the dry-processed product discharging apparatus, there is a problem that the piston rod rubs against the direction orthogonal to the traveling direction and becomes inoperable.

  The present invention has been made to solve such a problem, and an object of the present invention is to provide a dry-processed product discharging apparatus capable of stable driving even in a high-temperature atmosphere.

  A dry-processed product discharge apparatus according to the present invention includes an internal region, an input port for supplying a workpiece into the internal region, and a discharge port for discharging the workpiece input into the internal region. Then, deposits are made by advancing and retreating the push-out portion disposed in the internal region while the input port side is hermetically sealed with respect to the discharge port side by the processing object that is thrown into the internal region and deposited on the bottom of the internal region. In the dry processed product discharge device for discharging the processed object from the discharge port, the dry processed product discharge device is provided at a lower portion of the inner region, and extends along the advancing / retreating direction of the pushing portion and arranged in parallel in a direction perpendicular to the advancing / retreating direction. A first rail and a second rail, a first receiving portion provided in the pushing portion and guided by the first rail, and a second receiving portion guided by the second rail, The first receiving unit is configured so that movement in a direction orthogonal to the advancing / retreating direction is restricted. Engages Lumpur, the second rail and the second receiving portion, characterized in that the expansion and contraction due to the direction of the heat that is orthogonal to forward and backward direction are engaged with each other as permitted.

  In such a dry-type processed material discharge apparatus, when the first receiving portion is engaged with the first rail, the position in the direction orthogonal to the advancing / retreating direction of the pushing portion is fixed. Since the second rail and the second receiving portion are engaged so as to allow expansion and contraction due to heat in a direction orthogonal to the advancing and retreating direction, the first rail and the second rail are caused by thermal expansion and contraction. Even if the positional relationship between the first receiving portion and the second receiving portion with respect to the positional relationship between the first rail and the second rail is changed, the second rail and the second receiving portion are appropriately engaged. As described above, the extrusion portion is stably guided by the first rail and the second rail, and even if the inner region is in a high temperature atmosphere, the appropriateness between the second rail and the second receiving portion is appropriate. It is guided stably by the engagement and can be driven stably.

  In addition, it is preferable that a second discharge port for discharging the workpiece when the push-out portion moves backward is provided behind the tip position when the push-out portion is positioned at the retreat limit. When such a configuration is adopted, since the second discharge port is provided on the rear side from the tip position when the pushing portion is located at the retreat limit, the workpiece leaks out from the internal region through the second discharge port. In addition, the object to be processed pushed back by the backward movement of the pushing portion can be discharged through the second discharge port while maintaining the airtightness of the inner region. For this reason, it can prevent that a to-be-processed object accumulates on the back side of an extrusion part, and a more stable drive is attained.

  As described above, according to the present invention, it is possible to provide a dry-processed product discharging apparatus that can be stably driven even in a high-temperature atmosphere.

  DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, a preferred embodiment of a dry-processed product discharging apparatus according to the invention will be described with reference to the drawings. FIG. 1 is a side sectional view showing a dry-processed product discharging apparatus 1 according to the present embodiment, FIG. 2 is a top view showing a relationship between the pushing portion 3, the fixed side rail 15 and the free side rail 16, and FIG. It is the III-III arrow line view in FIG.

  As shown in FIG. 1, the dry-processed product discharge device 1 according to the present embodiment air-cools the workpiece 2 that has been roasted in a roasting furnace (not shown) such as an upstream rotary kiln, and advances and retracts the extrusion unit 3. It is discharged by driving.

  The dry-processed product discharge apparatus 1 includes a casing 4 for storing the workpiece 2 discharged from the upstream side, and the casing 4 defines an internal region A therein. The casing 4 is provided with an input port 6 through which the workpiece 2 is input via a chute 5. The bottom of the casing 4 is a base plate 7 on which the workpiece 2 that has been input from the input port 6 is deposited. The base plate 7 is made of a highly rigid metal or the like in order to receive the workpiece 2 that falls, and is provided so as to extend in the advancing / retreating direction (the left-right direction in the drawing) of the pushing portion 3. Moreover, the casing 4 is provided with a partition plate 4a that hangs down from the upper portion of the casing 4 so as to be close to the extrusion portion 3 and partitions the inside of the casing 4 into a front side (right side in the drawing) and a rear side. The partition plate 4 a is for receiving the workpiece 2 together with the base plate 7. The base plate 7 is provided so as to extend forward and rearward from the partition plate 4a.

  A first discharge port (discharge port) 8 that discharges the workpiece 2 deposited on the base plate 7 is provided at the bottom of the base plate 7 in front of the longitudinal tip. The first discharge port 8 is provided with a thermometer 9 for measuring the temperature of the processing object 2 that falls. Further, a sieve 10 is provided at the first discharge port 8. This sieve 10 has a sieve hole to such an extent that a large mass such as a melt, a clinker, and a refractory generated in a roasting furnace can be sieved from the workpiece 2.

  Further, the casing 4 is provided with a deposition amount adjusting means 50 for adjusting the deposition amount of the workpiece 2. The accumulation amount adjusting means 50 airtightly penetrates the casing 4 and enters the inner region A and extends toward the base plate 7 side, and a gate actuator 13 that is installed outside the casing 4 and drives the gate 12. It has. The gate 12 is provided over the entire width of the casing 4 (perpendicular to the paper surface) and is formed in a rectangular plate shape. The length of the gate 12 entering the casing 4 is adjusted by driving the gate actuator 13. Then, the deposition amount adjusting means 50 inserts the tip of the gate 12 into the workpiece 2 deposited on the base plate 7 by driving the gate actuator 13 and adjusts the insertion amount to deposit the workpiece 2. The amount is adjusted, and the inlet 6 side is hermetically sealed with respect to the first outlet 8 side. In the casing 4, a camera (not shown) for monitoring the workpiece 2 deposited on the base plate 7 or a sensor (not shown) for detecting the workpiece 2 is provided.

  The casing 4 is provided with a cooling duct 14 for blowing air in order to air-cool the workpiece 2 deposited on the base plate 7 exclusively.

  As shown in FIGS. 1 to 3, the base plate 7 constituting the bottom portion of the inner region A extends to the base plate 7 in the longitudinal direction (the left-right direction in the drawing) and guides the advancing and retreating movement of the pushing portion 3 ( The first rail 15 and the free side rail (second rail) 16 are laid so as to be aligned in a direction (vertical direction in FIG. 1) perpendicular to the advancing / retreating direction of the pushing portion 3.

  As shown in FIG. 3, the fixed-side rail 15 is configured to have a convex fixed-side engaging portion 17 configured as a mountain-shaped convex at the top of the rectangular body.

  The free side rail 16 is configured in a rectangular shape, and the upper portion thereof is a convex free side engaging portion 18.

  The extruding part 3 guided by the fixed side rail 15 and the free side rail 16 is an extruding part for extruding the workpiece 2 deposited on the base plate 7, and is provided over the entire width of the casing 4 in the width direction. As shown in FIG. 1, when the push-out part 3 is located at the backward limit (see the solid line 3a), its tip is located in front of the partition plate 4a and is located at the forward limit (two-dot chain line 3b). Reference) is configured such that the rear end is located on the rear side of the partition plate 4a. The extrusion unit 3 is connected to a drive unit 20 installed outside the casing 4 via a rod 19. And the drive part 20 drives the extrusion part 3 forward / backward. In addition, since the extrusion part 3 also receives the to-be-processed object 2 falling from a roasting furnace, it is formed with the metal etc. with high rigidity.

  As shown in FIGS. 2 and 3, the extrusion unit 3 includes a flat plate-like upper surface portion 21 that forms the upper surface thereof, and side surface portions 22 that extend downward from the upper surface portion 21 to the vicinity of the base plate 7 on both sides in the width direction of the casing 4. 23, a front surface portion 24 extending obliquely forward and downward from the upper surface portion 21 to the vicinity of the base plate 7 on the front side of the extrusion portion 3, and a rear surface portion 25 extending downward from the upper surface portion 21 to the vicinity of the base plate 7 on the rear side of the extrusion portion 3. It is configured. The front surface portion 24 and the rear surface portion 25 are provided with grooves at portions that interfere with the fixed side rail 15 and the free side rail 16, and the rod 19 is connected to the center portion of the rear surface portion 25. On the lower surface of the upper surface portion 21, a pair of fixed side receiving portions (first receiving portions) 26 that are engaged with the fixed side rail 15 are disposed along the fixed side rail 15 so as to be separated from each other. A pair of free-side receiving portions (second receiving portions) 27 that engage with 16 are disposed along the free-side rail 16 so as to be separated from each other.

  As shown in FIG. 3, the fixed side receiving portion 26 extends downward from the upper surface portion 21, and the lower end surface center portion thereof engages with the convex fixed side engaging portion 17 of the fixed side rail 15. Part 28. The concave fixed side receiving portion 28 has a shape that matches the convex fixing side engaging portion 17 having a mountain shape. Then, by placing the fixed side receiving part 26 on the fixed side rail 15, the convex fixed side engaging part 17 of the fixed side rail 15 fits into the concave fixed side receiving part 28 of the fixed side receiving part 26, The pushing portion 3 is restricted from moving in a direction orthogonal to the advancing / retreating direction.

  The free side receiving portion 27 extends downward from the upper surface portion 21, and the lower end surface center portion thereof is a concave concave free side receiving portion 29 that engages with the convex free side engaging portion 18 of the free side rail 16. Yes. The width of the concave free side receiving portion 29 is wider than the width of the convex free side engaging portion 18. Thus, when the free side receiving portion 27 is placed on the free side rail 16, the side surface of the concave free side receiving portion 29 of the free side receiving portion 27 and the side surface of the convex free side engaging portion 18 of the free side rail 16. Even if a gap is formed between the free side rail 16 and the free side receiving part 27 in the direction perpendicular to the advancing / retreating direction, proper engagement can be achieved.

  As shown in FIG. 1, the workpiece 2 is placed on the rear side of the front end position when the pushing portion 3 is positioned at the retreat limit, specifically, on the rear end portion of the base plate 7 when the pushing portion 3 moves back. A second discharge port 30 for discharging is provided downward. The second discharge port 30 discharges the workpiece 2 that has been pushed back when the push-out unit 3 moves backward.

  A conveyor 31 is provided below the first discharge port 8 and the second discharge port 30 so as to extend from below the second discharge port 30 so as to pass below the first discharge port 8. The conveyor 31 discharges the workpiece 2 dropped from the first discharge port 8 and the second discharge port 30 to the outside of the dry-processed product discharge device 1.

  The casing 4 is provided with a cooling duct 32 that blows air in order to air-cool the extrusion unit 3 exclusively.

  Then, the operation | movement of the dry-type processed material discharge apparatus 1 is demonstrated.

  First, in the state shown in FIG. 1 to FIG. 3, the concave fixed side receiving portion 28 of the fixed side receiving portion 26 engages with the convex fixed side engaging portion 17 of the fixed side rail 15 and the free side receiving portion. When the concave free side receiving portion 29 of the portion 27 is engaged with the convex free side engaging portion 18 of the free side rail 16, the pushing portion 3 is in a state where the position in the direction orthogonal to the advancing / retreating direction is fixed It is slidable in the direction of travel. Therefore, even if there is much quantity of the to-be-processed object 2, the extrusion part 3 is guided (guide) by the fixed side rail 15 and the free side rail 16, and can advance / retreat favorably.

  Then, the gate actuator 13 is driven to insert the gate 12 into the casing 4 for a predetermined length, and then the object to be processed 2 roasted in the roasting furnace is thrown into the casing 4 from the inlet 6 through the chute 5. Then, the workpiece 2 falls on the base plate 7 and accumulates on the base plate 7 while being blocked by the partition plate 4a and the gate 12. In this way, the workpiece 2 is deposited to a position higher than the tip of the gate 12, whereby the inlet 6 side is hermetically sealed with respect to the first outlet 8 side. The workpiece 2 is air-cooled by the cooling duct 14.

  Thereafter, the discharge operation of the workpiece 2 is started by driving the drive unit 20. At this time, the inside of the casing 4 has a high temperature atmosphere due to the upstream temperature and the workpiece 2, the extruded portion 3 and / or the fixed rail 15 and the free rail 16 thermally expand, and the fixed rail 15 and the free side Although the positional relationship between the fixed side receiving portion 26 and the free side receiving portion 27 with respect to the positional relationship of the rail 16 changes, there is a gap between the free side rail 16 and the free side receiving portion 27 in a direction perpendicular to the advancing and retreating direction. Therefore, the free side rail 16 and the free side receiving portion 27 are appropriately engaged with each other. Therefore, the pushing portion 3 is guided by the fixed side rail 15 and the free side rail 16 and advances well in the casing 4 from the backward limit 3a to the forward limit 3b, and the lower portion covered by the base plate 7 is covered. The processed product 2 is extruded by the extrusion unit 3 and falls toward the conveyor 31 from the first discharge port 8. At that time, the large mass is sieved by the sieve 10, and only the workpiece 2 finer than the sieve hole falls on the conveyor 31, and is conveyed by the conveyor 31 and discharged to the outside. In addition, by monitoring the workpiece 2 that falls on the base plate 7 from a camera (not shown) provided in the casing 4, it is determined whether or not there is a large lump in the casing 4 and the size of the large lump. Judgment can be made. For this reason, when the large block falling on the base plate 7 is larger than the gap formed by the base plate 7 and the gate 12, the insertion length of the gate 12 is shortened so that the large block can pass through the gate 12, Discharge to the sieve 10 side.

  Note that the discharge amount of the workpiece 2 can be adjusted by the insertion length of the gate 12, the interval of the advancing / retreating drive of the pushing portion 3, and the advancing / retreating stroke length of the pushing portion 3.

  Further, by measuring the temperature of the workpiece 2 falling from the first discharge port 8 with the thermometer 9, the temperature of the workpiece 2 to be discharged can be determined. Therefore, when the temperature of the discharged workpiece 2 is other than a desired temperature, the gate actuator 13 and the drive unit 20 are driven and controlled to adjust the discharge amount, and the supply amount by the cooling duct 14 is adjusted. Thus, it is possible to discharge the workpiece 2 that has been cooled in the casing 4 as desired.

  On the other hand, after the push-out unit 3 reaches the forward limit 3b, the drive unit 20 is reversely driven to move the push-out unit 3 backward to the backward limit 3a. At this time, as described above, the free side rail 16 and the free side receiving portion 27 eliminate the influence of thermal expansion, and the free side rail 16 and the free side receiving portion 27 are appropriately engaged. Retreat to. During the retreat, the extruding unit 3 enters the processing object 2 that has entered the extruding unit 3 through the gap between the extruding unit 3 and the base plate 7, and enters the backward through the gap between the partition plate 4 a and the extruding unit 3. The processed object 2 is pushed back. The extruding unit 3 drops these objects 2 through the second discharge port 30 when the extruding unit 3 moves backward, and the objects 2 are conveyed by the conveyor 31 to the outside. Discharged.

  Thus, in the dry-processed product discharging apparatus 1 according to the present embodiment, the position in the direction orthogonal to the advancing / retreating direction of the push-out portion 3 is fixed by the engagement of the fixed-side receiving portion 26 and the fixed-side rail 15. In addition, since the free side rail 16 and the free side receiving portion 27 are engaged so as to allow expansion due to heat in a direction orthogonal to the advancing and retreating direction, the fixed side rail 15 and the free side rail 16 are caused by thermal expansion. When the positional relationship between the fixed side receiving portion 26 and the free side receiving portion 27 with respect to the positional relationship is changed, the free side rail 16 and the free side receiving portion 27 are appropriately engaged. Therefore, the pushing portion 3 is stably guided by the fixed side rail 15 and the free side rail 16 and can be driven stably.

  Moreover, according to the dry-type processed material discharge apparatus 1 according to the present embodiment, the second discharge port 30 is provided on the rear side from the tip position when the pushing portion 3 is positioned at the retreat limit, 2 does not leak from the inner region A through the second discharge port 30, and the workpiece 2 pushed back by the retraction of the push-out portion 3 is discharged through the second discharge port while maintaining the airtightness of the inner region A. The For this reason, it can prevent that the to-be-processed object 2 accumulates on the back side of the extrusion part 3, and a more stable drive is attained.

  As described above, the present invention has been specifically described based on the embodiment. However, the present invention is not limited to the above embodiment. For example, in the above embodiment, the base plate 7 is the bottom of the casing 4. The base plate may be installed on the casing 4.

  Further, the second discharge port 30 has been described as being provided at the rear end portion of the base plate 7. However, for example, as shown in FIG. 4, the second discharge port 30 a may be provided in the middle or the front side of the base plate 7. In short, it is only necessary that the push-out portion 3 is provided on the rear side from the tip position when the push-out portion 3 is located at the retreat limit.

  Moreover, in the said embodiment, although the application with respect to a roasting furnace was described, of course, it is applicable also to an incinerator.

  In addition, although the said Example demonstrated the case where the extrusion part 3 and / or the fixed side rail 15 and the free side rail 16 thermally expanded, it is applicable similarly when these thermally contract.

It is side surface sectional drawing which shows the dry type processed material discharge apparatus which concerns on this embodiment. It is a top view which shows the relationship between an extrusion part, a fixed side rail, and a free side rail. It is the III-III arrow line view in FIG. It is side surface sectional drawing which shows another dry type processed material discharge apparatus.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Dry-type processed material discharge apparatus, 2 ... To-be-processed object, 3 ... Extrusion part, 4 ... Casing, 6 ... Input port, 8 ... 1st discharge port (discharge port), 15 ... Fixed side rail (1st rail) ), 16... Free side rail (second rail), 26... Fixed side receiving portion (first receiving portion), 27... Free side receiving portion (second receiving portion), 30, 30 a. Exit, A ... internal area.

Claims (2)

An internal region, an input port for supplying a workpiece into the internal region, and a discharge port for discharging the workpiece input into the internal region; The deposited object to be processed by advancing and retreating the pushing part disposed in the inner area while sealing the inlet side with respect to the outlet side by the object to be deposited on the bottom of the inner area. In the dry-processed product discharge device for discharging from the discharge port,
A first rail and a second rail provided at the bottom of the inner region, extending along the advancing / retreating direction of the pushing portion and arranged in parallel in a direction perpendicular to the advancing / retreating direction;
A first receiving portion provided in the push-out portion and guided by the first rail, and a second receiving portion guided by the second rail;
The first receiving portion engages with the first rail so that movement in a direction orthogonal to the advance / retreat direction is restricted,
The dry-processed product discharging apparatus, wherein the second rail and the second receiving portion are engaged with each other so that expansion and contraction due to heat in a direction orthogonal to the advancing and retreating direction is allowed.   A second discharge port for discharging the object to be processed when the push-out unit moves backward is provided on the rear side from the tip position when the push-out unit is located at the retreat limit. The dry-processed product discharging apparatus according to claim 1.

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