JPH0752191Y2 - Negative pressure type slurry recovery device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The disclosed technology belongs to the technical field of the structure of an apparatus that sucks slurry such as waste sludge water from a construction site and discharges it to a predetermined processing apparatus.

<Summary of summary> The invention of the present application is, in a negative pressure type slurry recovery device for sucking and discharging waste mud water at a construction site to a predetermined processing device, a slurry suction hose provided on a frame is connected to a suction tank, The suction tank is connected to a vacuum pump of a water-sealed centrifugal pump at its upper part, and a discharge pump is provided at the lower part, and a vacuum tank is connected to a cooling tank. In particular, the inside of a tank container having a suction tank and a cooling tank is vertically separated by a sloping plate, the upper part is a suction tank, the lower part is a cooling tank, and the sloping plate is a suction tank. It is a bottom plate so that the discharge pump faces the tip of the inclined plate,
The invention relates to a tank-integrated negative pressure type slurry recovery device in which a primary cyclone and a secondary cyclone are provided between a slurry suction hose and a suction tank.

<Technology of Device> As is well known, the rise of industry has been remarkable, raising the level of civic life.

Then, industrial activities become active, the ripple effect spreads to all fields, and therefore, full operation of production facilities such as many factories becomes active and new facilities are also actively established. Is also becoming active.

Therefore, there is a close concern that slurries such as industrial wastewater from these production facilities and waste mudwater from construction sites will cause new industrial pollution. It has become an important personality.

Then, these discharged slurries are subjected to predetermined treatments such as solid-liquid separation and removal of harmful substances, and then discharged into rivers and seas without pollution, landfill treatment, and effective reuse. .

Thus, it is necessary to provide a recovery device for feeding the slurry to these processing facilities from the source side, and various types have been put into practical use for research and development, but when sucking the slurry from the source, Negative pressure type recovery devices have been used.

In the negative pressure type recovery device, since the suction tank for the slurry is sucked into the suction tank in a negative pressure state, the suction tank is spherical in terms of its pressure resistance and the like,
Or, although it is theoretically preferable to have a circular cross-section, a batch-type recovery method is used in which the suctioned slurry is once settled and discharged and then sucked again in order to feed the slurry to the next-stage treatment device without clogging. Therefore, a cyclone type suction tank with a taper cone type on the lower side has been used.

That is, in the conventional negative pressure type slurry recovery apparatus 1 as shown in FIGS. 4 to 6, the suction connected to the cyclone type suction tank 2 of the upper cylindrical lower tapered cone type via the primary cyclone 3 The hose 4 is made to face and suck the slurry 5 in the slurry reservoir in the tunnel shield construction, and the negative pressure is applied to the slurry tank 2 by the water-sealing centrifugal vacuum pump 7 via the secondary cyclone 6. As described above, the discharge pump, which operates in a predetermined cycle without causing clogging as described above, appropriately discharges the slurry to the next slurry processing apparatus.

By the way, since the water-sealed centrifugal vacuum pump 7 has to use cooling water, a cooling tank 11 composed of a hot water tank 9 and a cold water tank 10 is provided along with the suction tank 2 by the cleaning water through a tank cleaning pipe 12. The washing and the washing of the electrolysis electrode 13 provided therein are performed with hot water from the hot water tank 9 through the electrode washing pipe 14.

In addition, 15 is an operation panel.

<Problems to be Solved by the Invention> Therefore, as shown in FIGS. 4 to 6, in the negative pressure type slurry recovery apparatus 1, two suction tanks 2 and two cooling tanks 11 that occupy a large space volume are provided side by side. Since the device becomes large in size, the space around the lower part of the suction tank 2 having a tapered cone type becomes a dead space and the device becomes bulky. Therefore, a large installation space for the device is required, and the tunnel is narrow. However, there is a problem that the workability at the construction site is remarkably reduced, and there is a disadvantage that the working environment is deteriorated.

When the construction scale is large and the construction period is long, the distance between the suction side and the discharge side of the slurry becomes long, making it difficult to carry in and connect the equipment. There was a difficulty that I could not fully respond.

<Purpose of Invention> The purpose of the invention of this application is to solve various problems of the structure of the negative pressure type slurry recovery device based on the above-mentioned conventional technique, and the structure of the device can be remarkably compact and simplified. Excellent workability, low cost, easy handling, improved durability, easy operation and control management, and excellent negative pressure slurry that contributes to the field of pollution prevention technology in the construction industry. It intends to provide a recovery device.

<Means / Actions for Solving the Problems> The configuration of the present invention, which is based on the above-mentioned purpose and has the scope of the above-mentioned utility model registration request, comes out from the construction work of the shield construction in order to solve the above-mentioned problems. When sucking slurry such as waste mud and sending it to the next predetermined treatment step, it is sucked and discharged in a badge type using a negative pressure type slurry recovery device, and thus the negative pressure type slurry recovery device is used. In that case, the tank container is made into a cubic shape or the like to have a large capacity, and
An inclined plate is installed inside the tank container, and it is divided into an upper suction tank and a lower cooling water tank.Suction slurry from the slurry suction hose is sucked into the suction tank via the primary cyclone, and negative pressure suction is performed. The water-sealed centrifugal vacuum pump is cooled by cooling water, and the slurry that is sucked and settled is transferred by the inclined plate and discharged by the discharge pump to the predetermined next-stage treatment process, so that the cooling water in the cooling tank is centrifuged. The vacuum pump is cooled, the suction tank is washed through the washing pipe, and the electrolytic electrode provided in the suction tank can be washed, so that the tank container has a cubic shape. By forming a suction tank in the upper part and a cooling tank in the lower part, it is an integrated type despite the large capacity of the tank container. The whole device is made compact, and it is made into a cubic shape to reduce the weight, and it is easy to handle, and technical measures are taken to make it easy to carry in, install, and connect in a tunnel. It is a thing.

<Embodiment> An embodiment of the invention of this application will be described below with reference to FIGS. It should be noted that parts that are the same as those in FIG. 4 and subsequent figures will be described using the same symbols.

Similar to the conventional embodiment shown in FIG. 4 and subsequent figures, the illustrated embodiment is an embodiment used for sucking and discharging the slurry 5 of the waste mud water that comes out with the shield work to a predetermined next step, and 1'is the gist of the invention of this application. It is a negative pressure type slurry recovery device which forms the center of the tank container 2 ′, which is formed in a cubic shape, and a predetermined electric instrumentation device is installed in the side space portion thereof so that the entire device is formed in a cubic shape. It is designed to be easy to handle.

Then, an inclined plate 16 is provided at a predetermined angle in the tank container 2 ', and an upper suction tank for the slurry 5 is provided.
It is divided into a cooling tank 22 and a lower cooling tank 22.

A primary cyclone 3 is provided in the suction tank 21 on the upper side so that a slurry suction hose 4 is connected to suck the slurry 5, and an air portion sucked is secondary to the primary cyclone 3. Cyclone 6 is attached.

The suction tank 21 is provided with an electrode 13 for electrolysis as in the conventional mode.

These primary cyclones 3, secondary cyclones 6, electrodes 13
Etc. are arranged on one surface (upper surface) of the cubic tank container 2 ', and a water-sealing type centrifugal vacuum pump 7'is provided on one side surface of both side surfaces and a discharge pump on the lower side of the other side surface. 8 is provided so as to face the inclined end of the inclined plate 16, and a cooling water tank 10 and a warm water tank 9 are provided on one side of the cooling tank 22, and the slurry suction hose 4 is provided through the cleaning pipe 12.
Further, a washing pipe 14 for the electrode 13 is provided from the hot water tank 9 via a valve, a filter and the like.

Therefore, as shown in the figure, the tank container 2'is not only a cubic shape, but various devices and electric instrumentation are arranged in the side surface space of the tank container 2 ', and the entire apparatus is formed in a cubic shape. It is designed to facilitate the operation, maintenance, inspection, maintenance and management of the entire device.

Therefore, there is no dead space as in the prior art shown in FIG. 4 and subsequent figures, and the entire apparatus is remarkably compact.

In the above-mentioned configuration, the water-sealing centrifugal vacuum pump 7'is operated to bring the suction tank 21 into a negative pressure state, whereby the slurry 5 is sucked together with air from the slurry suction hose 4, and the primary cyclone 3 into the suction tank 21. And is settled using the inclined surface of the inclined plate 16.

The sucked air is cleaned by the secondary cyclone 6 and sucked by the centrifugal vacuum pump 7 '.

Further, as described above, since the water-sealed centrifugal vacuum pump is the vacuum pump 7 ', it needs to be cooled by the cooling water, but the space below the inclined plate 16 of the tank container 2'is the cooling tank 22'. With this, the function of the vacuum pump 7'is not deteriorated at all and the vacuum pump 7'is stopped after the operation for a predetermined time, and the discharge pump 8 is operated to operate the suction tank 21. Slurry in 5
Are discharged to the next stage through the inclined plate 16 in a predetermined manner.

Then, the predetermined cooling water from the cooling water tank 10 of the cooling tank 22 cools the vacuum pump 7 ', and is supplied to the suction tank 21 every predetermined cycle to perform a predetermined cleaning action.

Further, hot water is supplied to the electrode 13 from the hot water tank 9 side to the cleaning pipe 14
And is subjected to predetermined cleaning.

As shown in FIGS. 2 and 3, the negative pressure type slurry recovery device 1 ′ of the invention of this application has a remarkably whole structure as compared with the conventional negative pressure type slurry recovery device 1 shown in FIGS. It was found that it was neatly simplified and made compact, and it became extremely easy to carry in the negative pressure type slurry recovery device 1'into the gallery and to connect the slurry reservoir and the discharge to the next stage processing device, and various It also makes it easier to perform operations such as operation and maintenance and inspection.

Needless to say, the embodiment of the invention of this application is not limited to the above-mentioned embodiment. For example, if the tank container 2'is formed in a cubic shape, it is possible to form a radius in the corner portion. .

Further, the slurry to be applied can be adopted not only in the shield work in the construction work but also in various modes such as being applicable to the slurry of waste mud water from various factories.

<Effects of the Invention> As described above, according to the invention of this application, in a negative pressure type slurry recovery device used in a treatment process of slurry such as waste mud discharged from a shield work, etc. However, the suction tank that intermittently discharges to the next stage by the discharge pump and the cooling tank that is used to cool the vacuum pump are integrated and separated adjacently via a sloping plate in a cubic tank container. By using the conventional type cyclone type suction tank, the entire space of the entire device can be effectively used without creating a dead space in the lower side space of the cyclone type suction tank. On the contrary, the tank capacity is increased by that much and the compactness is promoted. Therefore, the handling work is significantly facilitated, the degree of freedom in design is increased, and as a result, the cost can be reduced. It

Further, since the tank container having the suction tank in the upper part and the cooling tank in the lower part integrally has a cubic shape, it is easy to perform molding and assembling operation as well as manufacturing, and other equipment such as electric instrumentation. By arranging on the side surface, the whole structure can be summarized in a clean and simple manner, which not only has the effect of improving workability and serviceability, but also has the effect of improving durability.

In addition, since the equipment can be compactly assembled, it is easy to carry in and install it in a narrow area such as a tunnel, and even if the connection with the next-stage processing equipment becomes long, it can be installed, relocated, or changed in setup. Has the advantage that it can be done easily.

[Brief description of drawings]

1 to 3 are explanatory views of an embodiment of the invention of this application, FIG. 1 is an overall schematic sectional view, FIG. 2 is a side view of the same aspect, FIG. 3 is a front view of the same, and FIG. The drawings below are schematic views of a negative pressure type slurry recovery device of a conventional mode, FIG. 4 is an overall schematic sectional view thereof, and FIGS. 5 and 6 are side views and front views of the device. 4 ... Slurry suction hose, 7 '... vacuum pump, 8 ...
… Discharge pump, 21 …… Suction tank, 22 …… Cooling tank, 1 ′ …… Negative pressure type slurry recovery device, 16 …… Sloping plate, 3 …… Primary cyclone, 6 …… Secondary cyclone.

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Hirotaka Ikari 2-24-2 Nishinippori, Arakawa-ku, Tokyo Inside Shimazaki Manufacturing Co., Ltd. (56) Bibliographic references Sho 55-88474 (JP, U) Flat 1-137391 (JP, U) Actual flat 2-125007 (JP, U)

Claims (3)

[Scope of utility model registration request] 1. A negative pressure type slurry recovery apparatus having a suction tank connected to a slurry suction hose, an upper vacuum pump and a lower discharge pump, and a cooling tank connected to the vacuum pump, wherein a cubic tank is provided. A suction plate is formed inside the container with the suction hose side facing upward, a suction tank is formed on the upper side, a cooling tank connected to the vacuum pump is formed on the lower side, and a discharge pump is formed at the tip of the inclined plate. A negative pressure type slurry recovery device characterized by being provided. 2. A utility model registration characterized in that a primary cyclone is provided between the slurry suction hose and the suction tank, and a secondary cyclone for the air portion is provided between the primary cyclone and the vacuum pump. The negative pressure type slurry recovery device according to claim 1. 3. The negative pressure type slurry recovery device according to claim 1, wherein each equipment is arranged in a space forming an outer cubic shape of the cubic tank container.