JPH03187890A - Method and device for discharging clayey deposit - Google Patents

Abstract

PURPOSE:To facilitate discharge by dropping a clayey substance onto a bottom shelf with a plurality of fall slots, gradually cutting off a deposit on a bottom by projecting cut-off pawls disposed under the fall slots to upper sections from each fall slot and reciprocating the cut-off pawls along the fall slots and dropping the deposit to a carrying-out body from the fall slots. CONSTITUTION:Clay cake is deposited and stocked by the opening operation of the filter plates of a filter P, and hydraulic cylinders 4 are operated, rods 4a are pullsed up and a lifting member 3 is lifted, thus projecting cut-off pawls 8 to upper sections from fall slots E. A hydraulic cylinder 9 is worked at that time, and the elongation and return of a rod 9a are repeated, thus reciprocating a sliding frame body S in the longitudinal direction. Consequently, since the cut-off pawls 8 of the sliding frame body S are moved before and behind along the falling slots E, clay cake deposited on a bottom is scraped off, is passed through the space section of the sliding frame body S from the fall slots E in a small massive shape, is guided by a chute 10, falls onto a conveyor 11 and is discharged A deposit adhering on the wall surface of a chute section 2 and is formed in a bridge shape is also scraped off by the cut-off pawls 8 and falls.

Description

[Detailed description of the invention] [Industrial application field]

The present invention relates to a method and apparatus for draining sticky clay deposits.

[Conventional technology]

Conventionally, the clay cake that had been dehydrated using a filter or the like would fall into the deposition area below and accumulate, and then be scooped up with a power shovel or the like and transferred to a dump truck for removal.This method reduces the amount of accumulation. However, if there is a large amount of clay cake, it is time-consuming, so some methods drop the clay cake into a chute, then open the hopper and discharge it onto a belt conveyor.

[Problem to be solved by the invention]

However, if the deposit is sticky such as clay, it is not practical because it sticks to the wall of the chute and does not easily fall down, resulting in clogging. Therefore, the present invention provides a method and an apparatus in which even sticky deposits can be easily dropped and discharged using J.

[Means to solve the problem]

For this reason, in the method invention, the clayey material is dropped onto a bottom shelf having a plurality of drop slots, and then nine
A discharge method in which one protruding claw is projected upward from each falling groove and reciprocated along the falling groove, whereby the sediment is gradually cut out from the bottom sediment with the cutting claw and dropped from the falling groove to the conveyance body. It is. Note that the amount of the deposit to be cut out may be detected to control and adjust the protrusion state of the cut-out claw from the falling groove. In addition, in the installation invention, a stacking section is formed by arranging a plurality of falling grooves in parallel on the frame, a lifting rail is supported and arranged under the stacking section, and a lifting device for lifting and lowering the lifting rail is provided, The rail is provided with a slide frame that moves parallel to the drop slot, and a reciprocating device that moves the slide frame back and forth, and has a cutout claw that is inserted into the drop slot and projects upward from the drop slot. , are provided on the slide frame so that a number of drop slots can be placed at intervals in each row of drop slots, and an unloading device is provided below the stacking section. In addition, it is also possible to have a detector for detecting cut-out scratches of deposits that have fallen from the falling groove, and to link the detector to the climbing gear so that the elevation of the elevator rail can be controlled based on the detection.

[For use]

In the method invention, the deposits that have fallen onto the bottom shelf are removed from the drop slots by protruding the cutting claws located under the bottom shelf upward from the respective drop slots and moving them back and forth to scrape off the deposits. It is dropped, and is gradually cut out from the sediment at the bottom where the uJijjL nail hits, falls down, and is transported. By measuring the weight of the conveyor, it is possible to detect the cutting spear of deposits and control and adjust the state of the cutting claw protruding from the falling groove. Lower the cutting claw to reduce the amount of cutting, and if the amount of cutting that falls is small, raise the cutting claw to increase the amount of cutting. Outfit 2? In the invention, the deposits that have fallen into the deposit area on the frame are
It is scraped by a cutting claw that protrudes with the upward movement of the lifting rail and reciprocated by the reciprocating device, and is then dropped from the drop slot onto the conveying device and discharged. In addition, by controlling the elevation and descent of the lifting rail using a detector that detects the amount of sediment that has fallen from the falling groove, the amount of sediment that has been cut out can be adjusted by adjusting the protrusion of the cutting claw from the falling groove. be.

【Example】

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, details of the present invention will be explained with reference to illustrated embodiments, and the method invention will also be explained. In this example shown in Figures 1 to 5, C is a9 on the ground.
It is a reinforced concrete frame with rectangular cylindrical steel 1. By arranging them in parallel at intervals, the drop slots E are formed into parallel bottom shelves, and are surrounded by the chute part 2 to form the accumulation part K. In this example, the interval between the rectangular tube steels 1 is 100 m. A longitudinal lifting member 3 connected by a connecting member 3a is provided on both sides of the bottom of the accumulation section, and the tip of a downward rod 4a of a hydraulic cylinder 4 fixed to the frame C via a bracket is attached to the frame C via a bracket. It is fixed to the side projecting plate 3b of the elevating member 3, and the elevating member 3 is suspended and supported by a pair of hydraulic cylinders 4 on each side. Further, the elevating member 3 is provided with a rail R in the front-rear direction, and the rollers 5 of the slide frame S are transferred and arranged 2 on the rail R. The slide frame S has bearing members 5b fitted on both sides of rotating shafts 5a of rollers 5 provided at equal intervals in the front and rear, and
A rectangular cylindrical steel 6 is fixed on the bearing member 5b, and horizontal bars 7 connecting the rectangular cylindrical steels 6 on both sides are fixed at intervals in the front and back, and cut-out claws 8 are attached to each bar 7. They are placed horizontally at intervals and protrude upwards. In this example, nine cutting claws 8 are welded in a horizontal line, and are attached to the falling groove E between the rectangular cylindrical steel 1 at a position where the cutting claws 8 can pass through. As shown in FIG. 2, a plurality of cutting claws 8 (nine in this example) are provided for each drop slot row, and a cutting plate 8a is attached to the upper end of each cutting claw 8. In addition, as shown in FIG. 4, a rearward-facing hydraulic cylinder 9 is installed on a side projecting plate 3C in the approximate center of the elevating member 3, and the tip of the rod 9a is connected to the rectangular cylindrical steel of the slide frame S. The arm 6a is welded to the arm 6a. In addition, P is the r plate type-transfer machine installed on the -L side of the frame C, 1
0 is a chute disposed below the stacking section, 11 is a conveyor disposed below the chute 10, and a detector 12 for detecting the weight of the conveyor is provided below. Next, the operation of this example will be explained. First, the clay cake that has been dehydrated and filtered by the plate-opening operation of the filtration machine P falls onto the stacking section K on the frame C. At this time, since the clay cake is in the form of a plate, it falls from the drop slot E. Moreover, the elevating member 3 is in a lowered state, and the cutout claw 8 does not protrude from the drop slot E. After the clay cake is accumulated and stocked by this plate-opening operation, the hydraulic cylinder 4 is operated to pull the rod 4a and raise the elevating member 3, thereby causing the cutting claw 8 to protrude upward from the drop groove E. 9 and repeating the extension and return of the load 7 9a, the slide frame S is reciprocated in the front and back direction. This allows the cutout claw 8 of the slide frame S to fall into the slot E.
, the clay cake deposited on the bottom is scraped off and formed into small lumps, which pass through the empty space of the slide frame S from the drop slot E and are guided to the chute 10 and onto the conveyor 11. It falls and is ejected. Further, the bridge-shaped deposits adhering to the wall surface of the chute section 2 are also scraped off by the cutting claws 8 and fall. Then, by measuring the weight of the transport conveyor 11 with the detector 12, the amount of deposits to be cut out is detected, and if it is heavy and the amount of fallen deposits is large, the hydraulic cylinder 4 is activated to lower the elevating member 3 a little. By doing so, the cutout claw 8 falls into the slot E.
Since the protrusion from the conveyor 11 can be shortened, the amount of cutout can be reduced. Conversely, if the conveyor 11 is light and the amount of cutout that falls is small, the hydraulic cylinder 4 can be activated to slightly raise the lifting member 3 to reduce the cutout length. Claw 8 falling groove E
Since the protrusion can be made longer, the cutout ζ can be increased. In this way, according to this example, the clay cake stocked in the chute section 2 of the accumulation section does not stick to the chute section 2 and stay there, but is scraped from the bottom by the cutting claws 8 and gradually falls and is discharged. During the accumulation, the cutting claws 8 are prevented from protruding from the drop slot E, so that the cutting claws 8 are not damaged. Moreover, since the cutting claw 8 is raised and reciprocated, the initial operation becomes smooth. Furthermore, by activating the detector 12, the state of protrusion of the cutting claw 8 from the falling groove E is controlled according to the amount of falling cutting, and the amount of cutting can therefore be adjusted, allowing smooth quantitative discharge. In the event of a failure, all the constituent members can be exposed by lowering the elevating member 3 using the cylinder 4 while leaving the deposits as they are, making maintenance and parts replacement easier. In this regard, in the past, it was necessary to inspect the chute after all the deposits had been removed, which required a lot of work. Although this example is configured as described above, the present invention is not limited thereto. In the method invention, the falling groove may be provided in the direction perpendicular to the conveyor as shown in FIG. 6, and the cutting claw may be moved back and forth. The measurement method does not matter. In the invention of the device, the configuration of the stacking section formed by the parallel drop slots does not matter, and the length and q shape of the drop slots also does not matter. Further, the shape of the cut-out claw is not limited either, and the structure of the slide frame body in which the cut-out claw is provided is also suitable. Further, the reciprocating device for the slide frame is also optional, and may be reciprocated using a toggle aa or the like. Note that a four-down rail elevating liI device is also optional. Further, the structure of the carrying-out device for carrying the deposits that have fallen from the falling groove is not limited. Furthermore, the type of detector for detecting the excision of the deposits that have fallen from the falling groove is also arbitrary.

【Effect of the invention】

According to the method invention of claim 1, the deposits are removed by the reciprocating movement of the cutting claws that are projected upward from the respective falling grooves during discharge.
Since the clayey deposits are scraped and dropped from the drop groove, the clayey deposits can be discharged smoothly and quickly, which is very effective. According to the second aspect of the present invention, the amount of deposits to be cut out is detected by measuring the weight of the conveyor, and the state of protrusion of the cutting claws from the falling groove can be controlled and adjusted, thereby making it possible to adjust the amount of cut-out discharge by 21J. In the device invention of claim 3 JJl, clayey deposits can be reliably discharged without clogging, maintenance is simple, and the equipment can be installed at low cost. In the fourth aspect of the present invention, the state of protrusion of the cut-out claw from the falling groove can be controlled and adjusted, and the amount of cut-out discharge can be adjusted, so that breakage of the cut-out claw can be prevented and the conveyance device can be operated smoothly.

BRIEF DESCRIPTION OF THE DRAWINGS The drawings show one embodiment of the mounting invention, and FIG. 1 is a partially longitudinally sectional front view thereof. FIG. 2 is a side view with the elevating member slightly lowered. Fig. 3 is an enlarged longitudinal sectional front view, and Fig. 4 is an enlarged perspective view of the main parts. FIG. 5 is a partial plan view of the deposition section. FIG. 6 is a partial plan view of a separate deposition section. : Hydraulic cylinder, 9a: Rod. O: Shoe), 11: Conveyor, 2: Detector. : Frame, To: Accumulation section, E: Falling groove, Ni-Ride frame, R: Rail.

Claims (4)

[Claims] (1) A clay material is dropped onto a bottom shelf with multiple drop grooves, and then the cutout claws placed under the drop grooves are made to protrude upward from each drop groove to reciprocate along the drop grooves. 1. A method for discharging deposits, which comprises gradually cutting out the deposits at the bottom with the cutting claws and causing the deposits to fall from a drop groove to a carrying body. (2) The discharge method according to claim 1, characterized in that the amount of the deposit to be cut out is detected to control and adjust the state of protrusion of the cut-out claw from the falling groove. (3) A stacking section is formed by arranging a plurality of drop slots in parallel on the frame, a lifting rail is supported and arranged under the stacking section, and a lifting device for raising and lowering the lifting rail is provided, and the dropping slots are A slide frame that moves parallel to the rail is provided on the rail, and a reciprocating device that moves the slide frame back and forth,
A slide frame is provided with a plurality of cutout claws that are inserted into the drop slots and protrude upward from the drop slots so that a plurality of them can be arranged at intervals in each row of drop slots, and a carry-out device is provided below the stacking section. A sediment discharge device characterized by comprising: (4) Claim 3, further comprising a detector for detecting the amount of deposits that have fallen from the falling groove, and the detector and the lifting device are linked to control the lifting and lowering of the lifting rail based on the detection. ejection device.