JPS5847715A - Conveying device - Google Patents

Abstract

PURPOSE:To prevent the occurrence of a bridge phenomenon of a hopper, by a method wherein a part of a side wall of a hopper part in a conveyor case is positioned so that it can move in a direction being perpendicular to a screw shaft togetherwith the shaft, and intrusion blades are installed in a back blade surface of 2 screws. CONSTITUTION:Fluid pressure-operated cylinders 28 and 29 are supported by moving bearings 36, 37 moving along slide rails secured to terminal plates 31, 32 of a conveyor case 20. If, with the cylinders 28, 29 energized, the moving bearings 36, 37 are positioned away from bearings 25, 26, a screw 21 is kept away from a screw 22, a moving wall 61 slides over the guide part 59 with the movement of the screw 21 through the medium of a bearing box 79, a bearing cap 82, and a bearing metal 84, and a gap between the moving side wall and the stationary side wall positioned facing and opposite to a moving side wall 75 is widened. Meanwhile, intrusion blades 85, 86 are aligned so that they perform an alternate intrusion action, and dusts are effectively brought between blades 23 and 24.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a transport device for transporting a single screen.

Conventionally, in this type of transportation device, the walls of the conveyor casing and the hopper are fixed, and when bulky items such as municipal waste are stored, a bridge is created by the arching of the waste itself on the side wall, and the bridge is Rounding required to divide the number into equal parts, which led to a decrease in work efficiency. In addition, in order to release the bridge in these hoppers, there are nine cases in which a part of the side wall of the hopper is made movable using cylinders.
Even if only the hopper was moved, the lower hopper part or the transport part did not move, so it would bridge again in the lower hopper part or get caught in the transport part, and there was no sufficient surface bridging effect.The present invention , the conveyor case beside the screw and a part of the side wall of the hopper section move together with the screw shaft in a direction perpendicular to the screw shaft. Therefore, in addition to the above-mentioned drawbacks of the conventional method, the bridging phenomenon in the hopper section can be prevented or The purpose is to provide a transport device that can be released quickly. In the conventional double screw set transport device°,
Large objects such as dumbbells and garbage bags sometimes get on the blades of the two screws and become floating, impeding the transportation efficiency and the effectiveness of destroying garbage. I) A biting blade is provided on the back blade surface (in the opposite direction of axial feed) of the Z-, which eliminates the above-mentioned drawbacks of the conventional type, improves the effect of swallowing large garbage, and improves transport efficiency and The purpose of this invention is to provide a transportation device that can improve the effectiveness of trash destruction.

The present invention will be described with reference to embodiments and drawings.
・The figure shows an example of a municipal waste incineration facility, in which the garbage stored in the pit 1 is dumped into the hopper furnace by the crane Bakut J, and is supplied to the hopper incinerator 6 by the dust supply device I as a transportation device. I'm looking forward to it. In the incinerator 6, the flow air supplied by the pump p7 is passed through the dispersion plate t.
The fluid is ejected upward into the furnace, hits the inclined wall, and becomes an in-plane swirling flow 10, causing a fluid medium such as sand to flow along it to form a two-layer swirling fluidized bed. This swirling fluidized bed allows the waste to be burnt well in a short period of time without disturbing the fluidized bed, and high combustion efficiency can be obtained even if fine crushing is not performed in advance.

// is a combustion exhaust gas duct, lJ is a non-combustible material discharge device, 7.
7 is a vibrating sieve, l41 is for removing lumpy incombustibles;
I is an elevator for collecting fluid media such as sand.

Feeding device! %l6 is the inlet of the garbage, l7 is the outlet of the garbage after the bags are broken, /1 is the outlet of one large non-combustible material that is not allowed to enter the incinerator 6, /? As shown in Fig. 3, the structure of the O supply device 5, which is a return seat, is as shown in Fig. 3. A hopper is connected to the conveyor case 20 through a waste inlet l6, and a waste is connected to the conveyor case 20 at one end. exit l
At the other end, there is an outlet for discharging incombustible matter such as trout lumps that are not permitted to be fed into the incinerator. Inside the conveyor case JO are two screws that rotate in opposite directions to each other, and during normal operation rotate in the forward direction so that their upper sides approach each other, are held parallel to each other, and are twisted in opposite directions. J
/, JJ is provided・The pitch of the screw blades J3 and 2 of the screwco/, JJ is the pitch of the screw blades J3 and 2 of the left side in Figures 1 and 3. Exit l,
The shaft of one screw λ is supported by bearings Jj and J4 at the foot position with respect to the conveyor case JO, and is connected to the shaft joint by the motor cock. It is rotated directly through the body.

During normal operation, the screw head JJ is front-assembled in a counterclockwise direction when viewed from the motor J7 side, and the screw head J/ is rotated in a clockwise direction.

The off view is an enlarged sectional view taken along the line AA in FIG. 23.

The movable bearing box SU is supported as shown in FIG. 291 similarly to the movable bearing box 3S. The off view is an enlarged sectional view taken along the p-axis of FIG. By age 3
End plate of conveyor case aO, F
/, a movable bearing box 3J that moves along a slide rail J3 held by a slide rail mounting plate J0 fixed to JJ; a movable bearing 36 fitted into a movable bearing box 31; The movable bearing 36 is fitted into the movable bearing shaft JW so as to be allowed to move in the axial direction, and the collar 3t which is fitted into the screw 5--J/ is supported by the movable bearing shaft JW.
The collar 3t is fixed to a set screw 3t' screwed into the female thread in the #-radial direction, and the collar 3t is fixed in the axial direction to the screener, and the shaft sealing material 39 is inserted into the inner circumferential groove. The cover (1) provided for this is fitted and fixed into the moving bearing box (3), and the OVO (i) is a shaft sealing material.

In order to prevent the movable bearing 3 from moving in the axial direction toward the movable bearing box 3j, the outer ring of the taper roller bearing is held down by a capper ring fitted and fixed in the movable bearing box 3j, and is locked to the shaft end of the screw J/. It is fixed by a lock nut screwed in through a washer 413 so as not to move in the axial direction. at is the shaft sealing material・Conveyor Case Co. O
The end plate of ? / l, the part through which the screw l of 7J is inserted is a long hole J/' to allow movement of the screw J/,
,? λ' is open/Bearing 3. Each roller is an end plate,
7/,, bearing box fixed to 7J $4. pt, bearing box 9L4. Each $7 includes a cover of $9. J/ is fitted and fixed, bearing box pa, sc and cover l? is shaft sealing material s
Seal the shaft of screw J-2, ss, and sp respectively.

The bearing S has a bearing l1ea so that it is allowed to move in the axial direction.
into the shaft of staryu-2-2 and tighten the machine screw S.
The axial movement of the bearing 26 is stopped by the collar saK, which is added by m, and the outer ring of the bearing 26 is held down by the bearing box and the cover St so that it does not move in the axial direction, and the inner ring is held down by the screw JJ. Four washers on the shaft! It is fixed with four nuts that fit through the hole. Since the cylinders Jf and J9 are configured to be displaced by equal distances by a known synchronized hydraulic circuit (not shown), the screw J/ is moved parallel to the screw 2, and the shaft is The distance is adjusted from J/ to JJt.
One side of the wall of the conveyor case JO next to J/ is scratched! A moving wall 1 is guided by the guide portion I9 so as to be movable in the angular direction.

As shown in Fig. 6, the bottom of the cleaning case 10 has a garbage outlet, and except for the discharge port /1, the 6 sloping bottoms are arranged like a boat bottom on the side of the bottom 1J≧-JJ, and between the screws J/ and JJ. A chevron-shaped inclined bottom 6J is formed at the lower part of the movable wall 61.
K is a slanted bottom 4JfC symmetrically movable slanted plate 6 bait is fixedly installed.
Links 4j and A& are rotatably fitted into the shaft ends of J/ and JJ on the motor side, respectively, and links As and A& are links 6! A gear 69 is rotatably connected to the shaft 6 fixed to the shaft 6, and a gear 69 that meshes with the gear 6 fixed to one end of the screw J is rotatably fitted into the shaft 6). A gear 7-2, which is rotatably fitted into a shaft fixed to the link 6j, meshes with the gear 69, and the gear 7-2 engages with the gear 69.
A is interlocked with a gear J fixed to the shaft end of the screw col. Therefore, as shown in the off-figure, the screw λ
Even if the distance between the axes 11 of L and 21 changes to the distance jJ as shown in the figure, the axis of the screw J/ and the axis 6, the axis/
, 6, since the distances between the axis l and the axis of the screw do not change, the rotation of the screw is transmitted to the screw 11. The gears 4t and 4t have the same number of teeth and rotate in opposite directions at a constant speed. The hotupada is the upper corner o-) shaped part a, the square tubular part da b, the IO1 square tubular part, the wall containing the leader line with the symbol -b, and the axially both sides of the screw J/e-1. An end plate placed perpendicular to the axis serves as a vertical fixed wall on three sides, and one of the remaining nine expands toward the end and becomes an inclined wall aa.The inner side wall is a movable side wall? It becomes j. The movable side wall 7j is pivotally connected to the fixed wall of the hopper by a hinge 76 on the outside of the lip between the two end walls of the square tube part PB provided at the boundary between the square funnel-shaped sea and the square tube part. Screwco l, -
-Moving side wall by hinge t0 at the position where the distance between -om is the minimum of 11/above the moving wall 6/? , t) (The auxiliary wall 7 is pivotally mounted, and the auxiliary wall 7 is at 2/OrllJ).
As shown in Figures 6 and 7, a bearing housing holder is attached to the moving wall 61 by 15 m to the bolt nut TL, and a bearing cap is attached to the bearing housing holder. is fixed by bolts, and the bearing metal t, which slides on the shaft of the screwdriver, is housed in the bearing box and bearing cap so that it does not rotate. 9. The bearing cap j and the bearing metal ff<4 are located near the both end plates of the conveyor case Jo, 7/, 7J, and are connected to the aforementioned cylinder cylinder.

When the screw J/ is kept parallel to the screw J- by the knob and the distance between the shafts is changed, the screw z-I moves through the bearing metal tv, the bearing box t1, and the bearing cap r1 as the screw z-J/ moves. A/ is moved, and when the opening position of jJMj is changed from 1.1, the opening position of jJMj is changed from 1.1 to The auxiliary wall 11 rotates counterclockwise around .

The movable side wall 7j rotates clockwise around the hinge 74,
And the side wall moves around hinge r0! The auxiliary wall rotates and becomes as shown in the diagram.

Similarly, the state shown in Fig. 1210 is returned to the state of Fig.
The mechanism shown in -ttttqo-@- is preferred.

In this embodiment, the movement of the movable side wall 41 is restricted by the sq-J/K movement through bearings.
1 kvh shown in the figure is another example of a moving wall 61
may be moved by providing a moving means separately from the movement of the screw J/.

Further, in the embodiment, only the screws J/ are moved, but the screws J/, , 2- may be moved toward both sides and away from each other, and movable side walls 5 may be provided on both sides. It is.

With the above-described structure, when debris is bridged in the rectangular tube part of the hopper, the movable side wall 7j is moved to widen the gap between it and the opposing fixed side wall. The cylinders Ji and J9 are energized to move the moving bearings 34 and 39 to the bearings J3. Sui and Sufu 9 to keep away from J4 &
-J/ moves away from the screw 12 and moves through the bearing box KUDE, bearing cap iJ, and bearing metal r#, and the wall 61 moves as the screw J/ moves. Since the moving side walls move from the state shown in Fig. 210 ■ to the moving side wall ! in the IO state as already mentioned, the gap between the opposing fixed side walls becomes wider, so the bridging debris moves to the moving side wall. Loss of support between I and the opposing sidewalls ev%, scree s, −J/.

It's very hot to have people clearing the bridge because it's falling on JJ or SOIIIK. Moving side wall on the tread S
HajojI! Since the inside of the hopper is widened at the end of the hopper, it is completely impossible for the rod-shaped object to change its nodding temperature and bridge again. In the drawing showing the screw &-Jl, JJ's Neshiba 'II'
j e ' @ 0-II axis t tr I II
If s 2 / J diagram is a cross-sectional view of O//go sea 1. The figure is commonly used for Sufu 1 Fu-J/, JJ, and the symbol is 絖 (numbers represent screw J/, JJ). Screw feather ll1IJJ, Jll)tsc'JJ--J
/, JJO axis J/a, JJai (because the slender flat I [is wrapped around t so that the cross section is perpendicular to the axis), now 2/
/11KThvhScuri & -J / , plane in the transport direction that propels the transported object when moving to the right due to the rotation of J J, a, 7a.

Counter-axis feed direction opposite to Jpa 01jJJb, Jl't1
is equipped with reinforced lips fl &, t4 &
Diamond-shaped biting blades fj, t4 that match the plane of the drawing are provided by welding the screw blades *2Jm-2 to the shafts J/&, JIL.

The off-figure shows the mounting arrangement of the biting blade II, t&. As shown in the diagram, the biting blades 11 and 14 located at opposite positions of the screw blades JJ and Jll are arranged so as to perform biting action alternately.
In the longitudinal direction of J, it is divided into appropriate groups and arranged with shifted pitches.
The transportation capacity can be improved and stabilized, and the bag-breaking effect can be further improved.

f4. If the biting blade tBtb is attached to a normal screw, it will become impossible to transport the garbage due to biting during the 1iAjP, but in the present invention, which has a movement (escape #f) mechanism in the stopper 94-, it is extremely difficult to transport at sP%/m. Screw blades to effectively remove debris
27. It works to bring it in between Jl1. The off figure 3 shows the biting blade and the screw J showing an example of the actual vagina.
This is a cutaway view including the shafts of / and -1. In this example, the screw blades -27, J- and the ends of the shafts J/a and JJILK are in contact, and the biting blades g:z, tb are welded, and the biting blades are welded. Included feather IS, t
4 has large corners and is rounded off by arcs ts' and tν.

The arrangement is the same as shown and explained in the diagram. As shown, there are end plates at both ends of the 1J knee J/, JJ, and 7/, ? Screw blades Jj, so that the processed material does not go to the hole through which J's screw l, -2- is inserted.
Jll and the screw blade with the opposite twist direction? (II.

? ! ? , t4 and t9 are provided. Therefore, the screw blade is 3°J
When u sends the material to be treated to the garbage outlet 17, is it a screw blade?
Bait, De 4 is opposite and sends garbage to the exit 9, and Screw: L-J / , When J J is reversed, the screw blade f! ,?
? sends bulky unprocessable waste back to the discharge port/I, protects the furnace with the bearing metal, and prevents waste from coming out of the conveyor case. Cylinder λt, at is 1 in cylinder type with piston rond! Use the cylinder-type one from I4 (Piston Rot) 'Mill is equipped with a dog gt, and the dog it is used to screen! It will now operate at the position where the distance between the axes of L-J/ and JJ is maximum during steady state! It is equipped with a pressure switch 91 to measure the supply pressure of the cylinder t as shown in FIG.
pressure switch ti.

A reverse control scissor holder that operates based on a signal or a signal sent when a constant current value or more of the overcurrent detector 9J is generated.
Reverse the motor cock! 5K>(and!/
9x-J/, JJilK When large items such as iron ingots and stone blocks are caught, the IK is reversely rotated, sent to the discharge port 11, and returned to the bit I through the chute /1. At that time, 1) z - J / , J J is set to move wider than the steady maximum distance between the axes, and the cylinders Ji, Jj
or switch the fluid control circuit to widen the interval between screws J/ and JJ to transfer pressure fluid to cylinder Jt.
, JtllC is sent.

By doing this, in the event that large debris gets jammed between the screers J/J and JJ due to destruction, the debris will automatically be returned to the original debris bit, allowing operation. (as mentioned above), the transport device of the present invention allows the side wall of the hopper to move together with the movable wall of the conveyor case, thereby preventing bridging within the hopper. The bridge can be quickly removed. ・The screener drive motor is reversed by detecting the steady maximum distance between the screw axes and the allowable expansion force between the screws, so large debris caught between the screws is automatically removed. is returned in bits. Since a biting blade is provided on the back of the screw blade, large pieces of garbage such as cardboard and garbage bags will not remain on the screw, but will be bitten by the back blade and rolled into the screw.

[Brief explanation of drawings]

The drawings relate to practical examples of the present invention, and Fig. O1 is a side cross-sectional view of a garbage incinerator, Fig. Oa is a vertical cross-sectional view of the water supply equipment, Fig. OJ is a plan view of Fig. O, and Fig. O# is a longitudinal sectional view of the water supply system. Moum enlarged cross-sectional view of O diagram, O! The figure is an enlarged left side view of the O-diagram, and Fig. 6 is the O-A1
1-4 Enlarged sectional view, Off view, OtWJ is O of O diagram.
The arrow view, O, is an enlarged sectional view of the Oko diagram, taken from 0.
Figure 210) is a schematic view of Figure 1.
a! II is the installation diagram of the biting blade, O/Ja! ! l is o / / rI! Jo? -1 sectional view, O1sWJ+* installation diagram of other embodiments of biting blades, and O1 reference figure are arrangement diagrams of biting blades. l・・Bit −・・Crane Ji・Packet −・
・Hopper IIa...Square funnel-shaped part pb...Square tube part!
・Based on the water supply equipment. Furnace...pwa r...dispersion plate!・・Slanted wall 1
0... swirl flow //... combustion exhaust gas duct) /J...
Non-combustible material discharge device is... Vibration #/--φ conveyor?
/jφ・Elevator 16・・Garbage inlet 17・φDomi O exit it・・Discharge port lde・・Returning tool −)
JO・No. Conveyor Case Kol, -1...Meku9&-J
J. J Bait...Screw blade Jj, Ji...Bearing - Motor J7'...Shaft joint Ji, Jj @Cylinder 3
0...Slide rail mounting plate 3/, 32--m plate 3
3...Slide rail 344,3! r...Moving bearing box jA, 37...Moving bearing Taro. Riff...bearing shaft! 9... Guide part 61... Moving wall
4J, Aj... Slanted bottom 6II... Moving inclined plate 4! ,
la&...link 6ri...axis AF. 6t...-Fu Ri 1--Shaft 7 Ri...Gear 3.
・Moving side wall 76・・Hinge φ・Auxiliary wall ・
・Hinge t・・Bearing box t0・Hinge JjJ・
・Bearing cap tll...Bearing metal t3. t4・
- Biting blade - Patent applicant Ebara Corporation Agent Arai - Department Figure 10 (A) Figure 11

Claims (1)

[Claims] l A conveyor case comprising two screws rotatably held horizontally and parallel to each other in a conveyor case, a part of the conveyor case next to the screws being perpendicular to the axis of the screws. In the transportation device, the side wall of the hopper is perpendicular to the axis of the screw together with the movable wall. A transportation device characterized by having a moving side wall that moves in a direction. At least one of the JJ screws has a movable screen and a movable wall that move in a direction perpendicular to the axis of the screw, and the movable side wall moves together with the movable screw and the movable wall. transport equipment. j Equipped with a drive device so that each screw rotates in opposite directions and rotates in opposite directions. A fluid pressure cylinder is installed that supports the force of pushing and expanding one screw at both ends of the screw by urging it in the direction perpendicular to the axis. i is provided with a switch that detects the piston position of the fluid pressure cylinder, and a pressure switch that detects the working fluid pressure of the fluid pressure cylinder or a detector that detects the current value of the screw drive motor is used to detect when the fluid pressure exceeds the maximum pressure. or a motor reversal control device that operates in accordance with a signal issued when the motor current value exceeds the maximum load current and a switch for detecting the piston position of the fluid pressure cylinder is operated, and the reversal control device operates in the reverse direction. It is equipped with a fluid pressure control circuit that de-energizes the fluid pressure cylinder or expands the distance between the shafts of the screw to move the fluid pressure cylinder further backward, and it is equipped with a fluid pressure control circuit that deenergizes the fluid pressure cylinder or expands the distance between the shafts of the screw. A transportation device according to claims 1 to 3, wherein the handled material is discharged through an outlet. The transportation device according to claim 1, wherein a biting blade is provided on the back surface of the blade of the one corclew.