JP2671216B2 - Slurry pumping equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial field of application> The disclosed technology relates to a technical field of a structure of a pressure feeding device used for solid-liquid separation of slurries such as waste liquids from various production plants and slurries such as sludge of agricultural and livestock industries. Belong to.

<Summary of summary> Therefore, the invention of this application is left and right when the slurry discharged from various production plants, agricultural and livestock industry, etc. is pressure-fed to a solid-liquid separation device such as a filter press, etc. A plurality of diaphragm type pressure feeding devices, such as a pair of upper and lower, are used as a connecting body between the slurry housing and the hydraulic cylinder for operation, and the slurry housing is made of rubber or the like that can be expanded and contracted through a support such as a wire mesh. The invention relates to a slurry pumping device in which the flexible membrane body is connected to the hydraulic chamber on the hydraulic cylinder side and the slurry chamber connected to the slurry tank side and to a solid-liquid separation device such as a filter press. In particular, a connecting unit of one slurry housing and its operating hydraulic cylinder is provided as a predetermined number of connecting units, and the operating hydraulic cylinder has An interlocking sub-hydraulic cylinder having a smaller diameter than the operating hydraulic cylinder is provided side by side, and the piston of the interlocking sub-hydraulic cylinder and the piston of the operating hydraulic cylinder are integrated so as to operate synchronously via a link. A plurality of links are integrally moved forward and backward with the piston of the hydraulic cylinder for operation and the piston of the interlocking sub-hydraulic cylinder by a slide guide such as a guide rod that slides on a guide sleeve provided on the frame. Compact type slurry pumping equipment that can operate the adjacent slurry pumping equipment in units of solidarity interlocking type, can be fixedly installed in the plant, or can be mounted on a truck etc. to be movable. It is an invention related to.

<Prior art> As is well known, the level of civic life has dramatically improved with the development of science and technology, and therefore the activities such as the production system in various industries have also become prosperous, resulting in the so-called pollution problem. It has become so large that it cannot be ignored, and environmental damage such as air, river, and seawater pollution is gradually progressing deeply. Therefore, establishment of technology to deal with this is strongly desired. Are becoming available.

Of these, various types of slurries containing harmful heavy metals and unsanitary sludge discharged from the heavy chemical industry, construction industry, agriculture and livestock industry, etc. have been discarded directly into rivers and seawater for a long time. However, the technique of incineration, incineration, or landfilling by incineration has been adopted, but naturally, environmental pollution is caused through the water system. A solid-liquid separation technology has been developed for a slurry such as that found in a pumping apparatus, which is an invention, through a filter press, etc. to solidify the slurry with an extremely low water content and solidify it with concrete or the like to make it into a construction material or in the ground. Volume reduction techniques such as burying have been developed.

<Problems to be solved by the invention> However, as the scale of production activities of various enterprises expands along with the improvement of citizen's life as described above, a considerable amount of slurry as industrial waste is discharged over time. Therefore, there has been a problem that a large amount of equipment, which requires a large amount of cost, is used for solid-liquid separation treatment of a continuously increasing slurry and the like, which is becoming a heavy burden on social capital.

Therefore, the solid-liquid separation process of the slurry that is continuously discharged and increased is not only the initial cost but also the running cost, and it does not require much maintenance and maintenance work, and it can be reliably and continuously processed. There has been a strong demand for the emergence of a slurry processing technique for performing processing.

Further, as is well known, since the slurry has a certain degree of viscosity, it is necessary that the structure of the device for feeding under pressure to the solid-liquid separation device is strong and robust, and the power is also high. Not only the initial cost for initial production but also the running cost is large, and because the equipment is large, only fixed processing in large plants can be performed, such as trucks. It had the drawback of lacking in elasticity that it could not be loaded on and processed in a mobile manner.

<Object of the Invention> The object of the invention of this application is to solve the problems of the pumping device associated with the slurry processing based on the above-mentioned conventional technique, and to make full use of the advantages of the slurry processing technology that has been developed so far. However, it can be designed compact and lightweight, it can be used from fixed installation type to mobile type etc., it can be used flexibly, and besides, it has good durability,
Not only the initial cost, but also the running cost can be kept low, and it is possible to perform extremely reliable slurry processing, and to provide an excellent slurry pressure-feeding device that is useful in the field of using pollution control technology in various industries. Is.

<Means and Actions for Solving the Problems> In order to solve the above-mentioned problems, the structure of the invention of the present application, which is based on the above-mentioned object, has a solid-liquid separation such as a slurry tank and a filter press. A certain number of slurry housings that can be sucked and discharged to and from the device are installed side by side in the vertical or horizontal direction, and each slurry housing is made of rubber that is expandable and contractible via a support such as a wire mesh inside. A flexible film body is provided, an operating hydraulic cylinder is provided on the side of the hydraulic chamber defined by the flexible film body, and the operating hydraulic cylinder has a smaller diameter for interlocking. A sub-hydraulic cylinder is installed side by side, and a hydraulic cylinder for operation and both pistons of the sub-hydraulic cylinder for operation are integrally connected by a link, and the sub-hydraulic cylinder for operation is linked by the operation of the hydraulic cylinder for operation. Of the slurry housing by mechanically operating the hydraulic cylinder for actuation that is attached to it simultaneously mechanically via the link, and moving the piston of the hydraulic cylinder for actuation forward and backward. The hydraulic pressure in the chamber expands and contracts the flexible membrane to suck the slurry from the slurry tank,
The liquid is discharged to a solid-liquid separation device, and a predetermined solid-liquid separation process is performed.Therefore, each interlocking sub-hydraulic cylinder with a plurality of units is connected by a passage having an opening / closing valve such as a three-way valve, A control valve provided in a passage communicating with a pressure oil tank so that the slurry housings of a plurality of units can be interlocked by opening and closing, and is thus actuated in a predetermined manner. Since the sub hydraulic cylinder for interlocking with a smaller diameter can also be made smaller, it can be used not only in a fixed installation type plant, but also in an on-vehicle type that is loaded on a truck, etc., so that it can functionally perform a predetermined slurry treatment. It is a technical measure that is made possible.

<Example> Next, an example of the invention of this application will be described below with reference to the drawings.

Reference numeral 1 denotes a slurry pressure feeding device which constitutes the gist of the invention of this application, and a device body 1'is a compact and vehicle-mounted type that can be loaded on a truck or the like. The drum type slurry housing 2 of each unit has a passage 4 having a check valve 3 and a slurry pump 6 and a switching valve 7 via a three-way valve 5 as an opening / closing valve.
Is manually connectable to the slurry tank 9 at the site by means of a passage 11 having a check valve 10 and a passage 13 is provided at a filter press 12 as a solid-liquid separation device by means of a three-way valve 5'as an on-off valve. It is made possible to connect to the site by a predetermined work through.

In each of the slurry housings 2, a flange 16 has a seal packing 15 and a swelling wire mesh support 16 of a predetermined size is installed inside the slurry housing 2. Further, a seal packing 15 is used as a base through the support 16. Similarly, a flexible film body 17 made of rubber or the like which is also swellable and expandable and contractable is attached to the seal, and the inside of the slurry housing 2 is defined by an inner hydraulic chamber 18 and an outer slurry chamber 19. An operating hydraulic cylinder 20 is fastened together with the flange 14 and the seal packing 15 to the hydraulic chamber 18 side of the slurry housing 2, and a small diameter interlocking sub-hydraulic cylinder 21 is provided on each side thereof. Is attached to a frame (not shown), and the piston 21 'of the hydraulic cylinder 20 for operation and the sub hydraulic cylinder 21 for interlocking,
22 is integrally connected by a link 25 at the upper end thereof and is vertically movable in synchronization therewith, and a guide rod 26 fixed to a predetermined portion of the link 25 serves as a slide guide provided on the frame. The pistons 21 ', 22 are slidable in concentric slide holes formed in the guide sleeve 27.
It is designed to ensure the smooth forward and backward movement of the.

Therefore, the piston 21 'of the hydraulic cylinder 20 for operation is
The same pressure oil is used for the lower side and the hydraulic chamber 18 of the slurry housing 2.
It is supposed to be filled with 28.

An air vent hole 29 is provided at the top of the interlocking sub-hydraulic cylinder 21, and a seal 30 for the rod 24 allows the rod 24 to slide freely in the sealing manner.

A seal 31 for the rod 23 is slidably mounted on the top of the hydraulic cylinder 20 for actuation so that the rod 23 is also slidable, and a hydraulic passage 33 is provided from a port 32 on the top for control switching. The valve 34 is connected to a pressure oil tank 36 via a hydraulic pump 35.

As shown in the figure, the control valve 34 can interlock hydraulic cylinders 20, 20 for operating a pair of unit mechanisms arranged side by side.

Further, the small-diameter interlocking sub-hydraulic cylinders 21, 21 are mutually communicable, and a three-way valve 37 as an opening / closing valve connected to the pressure oil tank 36 is provided in the hydraulic passage 38. There is.

Therefore, by operating the three-way valve 37 and the control valve 34, the hydraulic cylinders 20, 20 for operation can be interlocked with each other with a delay of one cycle.

Reference numeral 39 is a control device which incorporates a microcomputer, a relay, etc., and controls the control valve 34, the three-way valves 37, 5, 5 ', the slurry pump 6, the opening / closing valve 7, the filter press 12 through a predetermined cable. It is electrically connected to a motor or the like, and can be controlled and operated according to a predetermined program.

Therefore, once the program is set, the slurry pressure feeding device 1 of the invention of this application is made to operate fully automatically, and in the case of the in-vehicle type, the control device 39 is set at the driver's seat of the automobile or the like and the predetermined operation is performed. The filter press 12 and the slurry tank 9 of the existing plant are connected to the existing cables.
The open / close valve 7 and the slurry pump 6 are freely connectable.

In this case, the control valve 34, the pressure oil tank 36, and the like can be installed on the automobile side in a predetermined manner.

Further, the filter press 12 may be loaded in the same car, or may be set in another car which accompanies it,
You may make it a stationary type in a fixed plant.

In addition, 40 is a nipple for injecting the pressure oil 28 in the hydraulic cylinder 20 for operation, 41 is a nipple for injecting the pressure oil of the sub-hydraulic cylinder 21, and 42 is for cleaning the slurry housing 2 slurry. The nipple for supplying the wash water of
Is a slurry.

In the above configuration, when the slurry tank 9 installed in a town factory or the like is filled with the slurry 43 and solid-liquid separated in a predetermined manner and needs to be discarded, a vehicle equipped with the apparatus body 1 ' Alternatively, an automobile equipped with the filter press 12 is accompanied and goes straight to the factory where the slurry tank 9 is installed to perform a predetermined solid-liquid separation action.
Explaining the mode of operating in an interlocking manner, the three-way valve 37 is communicated so that both sub hydraulic cylinders 21, 21 are interlocked,
Further, the three-way valves 5 and 5'are connected to the switching valve 7 of the slurry tank 9 and the slurry pump 6 through the passages 8 and 13 and also to the filter press 12.

Therefore, when the control device 39 is operated, the control valve 34 is set as shown in the figure according to a predetermined program, and the pressure oil 28 from the pressure oil tank 36 passes through the control valve 34 by the hydraulic pump 35 to The pressure oil 28 is supplied to the port 32 on the operating hydraulic cylinder 20 side, and the port 32 of the other operating hydraulic cylinder 20 is connected to the oil drain side.

Then, pressure oil 28 is applied to the hydraulic cylinder 20 for operation on the right side in the drawing.
Is pumped, the piston 21 'is pushed forward and the rod 23,
The rod 24 of the small-diameter sub-hydraulic cylinder 21 also pushes its piston 22 synchronously via the link 25, thus
The pressure oil 28 on the side of the sub-hydraulic cylinder 21 is passed through the passage 38 by the three-way valve 37 and the sub-hydraulic cylinder 21 for interlocking on the adjacent small-diameter side.
The compressed air on the upper side is pumped into the piston 22 so that the compressed air on the upper side is discharged to the outside through the air vent hole 29, and therefore, via the rod 24 and the link 25, the rod 23 of the hydraulic cylinder 20 for the other operation. As a result, the piston 21 'rises and the upper pressure oil 28 is returned to the pressure oil tank 36 via the passage 33 and the control valve 34, so that both pistons 21', 21 ', and 22,22 links 25,25
The synchronous ascending / descending operation via the guide 25 is ensured by the guide of the guide rod 26, which is integrally connected to the link 25 and extends downward, with respect to the guide sleeve 27.

Thus, in order to operate one of the hydraulic cylinders 20 for operation, in order to discharge the pressure oil from the hydraulic cylinder 21 for interlocking, which is attached to the hydraulic cylinder 20, and to send the pressure oil to the sub hydraulic cylinder 21 for interlocking next to it, The advance and retreat of the hydraulic cylinders 20, 20 for both operations will be delayed by a half cycle, and at the end of the stroke, the control valve 34 is switched through the control device 39 to operate the two operation cylinders. The hydraulic cylinders 20, 20 have opposite phases on one side and the other side, and through the sub hydraulic cylinders 21, 21 for interlocking with a small diameter as described above, the hydraulic cylinder 20 for operating one side allows the hydraulic pressure for the other side to operate. The operation of the cylinder 20 is performed in conjunction with the cycle.

Thus, such a pair of operating hydraulic cylinders 20,
The pressure oil 28 in the hydraulic chambers 18, 18 inside each slurry housing 2 is caused by the continuous interlocking operation of 20 mutually delayed by half cycle.
For expanding and contracting the flexible membrane body 17 via the support body 16, the three-way valves 5, 5'and the check valves 3, 3, 10, 10 are used.
The slurry 38 from the slurry tank 9 can be sucked in by the slurry pump 6 via the, and can be pressure-fed to the filter press 12, so that solid-liquid separation processing can be performed.

It should be noted that the embodiment of the invention of this application is not limited to the above-mentioned embodiment, and for example, the above-mentioned apparatus main body is not mounted on a vehicle, but is fixed to a slurry processing factory where a pressure oil tank or a filter press is installed. It is possible to employ various modes such as a type in which the device is installed stationary.

Depending on the design, it is also possible to design the slurry housing, the hydraulic cylinder for operation, and the sub hydraulic cylinder for interlocking with the hydraulic cylinder for operation in the horizontal direction as well as in the vertical direction. Of course, it is possible.

<Effects of the Invention> As described above, according to the invention of this application, in pumping the slurry from the slurry tank by the diaphragm-type pumping device to the solid-liquid separation device from the slurry tank to the filter press, an extremely large pumping force can be continuously and repeatedly performed. Therefore, the solid-liquid separation process of the slurry can be performed by the flow system instead of the badge system, and the solid-liquid separation process of a large amount of continuously discharged slurry is relatively reliable in the increasing machine production factories and agricultural and livestock businesses. The excellent effect that it can be performed is exhibited.

Thus, since a plurality of units in which the slurry housing and the hydraulic cylinder for operation are connected can be arranged vertically or laterally side by side to form an interlocking type, as described above, a flow type is used instead of a badge type. The solid-liquid separation treatment of the slurry can be performed smoothly, and an excellent effect that the treatment efficiency is extremely good is exhibited.

Then, the piston of the hydraulic cylinder for operation and the piston of the sub hydraulic cylinder for interlocking, which is provided in parallel with the hydraulic cylinder for operation, are integrally connected through a link so that they can be moved back and forth synchronously. As a result, since the interlocking operation of the hydraulic cylinders for operating the multiple units installed side by side is performed through the sub-hydraulic cylinder for interlocking, the sub-hydraulic cylinder for interlocking is pushed. By moving back and forth only the piston and its rod of the hydraulic cylinder for operation, which is installed side by side through the action, since it is possible to perform the contraction operation for an extremely small load, it is possible to downsize the sub hydraulic cylinder for interlocking with the small diameter. It is possible to do it, the capital investment is cheap, the initial assembly and operation are easy, and the structure is small and simple, so maintenance, inspection, maintenance, etc. Tondo need not, and improved durability,
The running cost is low, and in addition, since it can be loaded on a truck or the like, the maneuverability is improved, and the flexibility of use is given flexibility, which is an excellent effect.

Since the interlocking sub-hydraulic cylinder can integrally advance and retreat the link by the piston of the operating hydraulic cylinder, it is not necessary to control the suction and discharge of the pressure oil with respect to the interlocking sub-hydraulic cylinder. As described above, the structure is simplified, and maintenance and inspection operations are easily performed.

Therefore, there is also an effect that the entire pressure feeding device can be automatically operated laborlessly and unattended simply by providing a switching valve such as a pressure oil control valve for one of a plurality of operating hydraulic cylinders.

When installed and installed in a setting plant such as various production factories or agricultural and livestock product processing factories, in order to make it small and compact as described above, another solid-liquid separation treatment device such as a slurry tank or a filter press. There is an effect that there is no interference with the connection with the device, the installation is easy, and the processing capacity and the storage capacity can be increased by making the slurry tank and the like relatively large in capacity.

[Brief description of the drawings]

The drawing is an overall schematic diagram of the slurry pressure-feeding device of one embodiment of the invention of this application. 9 ... Slurry tank, 12 ... Slurry processing device, 2 ... Slurry housing, 16 ... Support, 18 ... Hydraulic chamber, 19 ... Slurry chamber, 17 ... Flexible membrane, 20 ... Actuation Hydraulic cylinder, 1 ... slurry pump, 21, 22 ... piston, 25 ... link, 26, 27 ... slide guide, 38 ... hydraulic passage, 37 ... opening / closing valve, 33 ... hydraulic passage, 34 ... Control valve

Claims (5)

(57) [Claims] 1. A flexible film body for partitioning a hydraulic chamber and a slurry chamber is provided in a slurry housing connected to a slurry tank and a slurry processing device through a support, and a flexible film body for operating the hydraulic chamber is provided. In the slurry pumping apparatus having the hydraulic cylinder attached thereto, the operating hydraulic cylinder and the slurry housing are provided in a plurality of units, and the operating hydraulic cylinders are provided with sub-hydraulic cylinders for interlocking each having a smaller diameter. The piston and the piston of the operating hydraulic cylinder are integrally connected via a link, and the interlocking sub-hydraulic cylinders are communicated with each other via an opening / closing valve, and thus the plurality of operating hydraulic cylinders are provided side by side. Slurry pumping device characterized in that a switching control valve that can be interlocked with is installed in a passage from the pressure oil tank. 2. The slurry pressure-feeding device according to claim 1, wherein each of the links is provided with a slide guide. 3. The slurry pressure-feeding device according to claim 1, wherein each of said mechanisms is of a fixed installation type. 4. The slurry pressure-feeding device according to claim 1, wherein each of the mechanisms is movable. 5. The slurry pressure-feeding device according to claim 1, wherein each of the mechanisms is formed on a vehicle.