JP3059446U - Continuous sludge treatment equipment - Google Patents

Abstract

(57) [Summary] [Problem] The present invention is to continuously discharge sludge in which a high-concentration mud is sucked in a vertical shaft to separate the soil particles and gravel, and only the soil particles are pumped to the upper part of the shaft. It is an object to provide a processing device. According to the present invention, a sludge inlet 2 and an inlet 3 communicating with the inside of a processing apparatus main body 1 are provided at an upper part of the processing apparatus main body 1, and the sludge inlet 2 transfers sludge discharged from an excavator. The suction port 3 is connected to a negative pressure generator, and the sludge F
Plate 7 is provided to separate the soil into a gravel G and a mud soil H.
The mud H thus separated can be transferred to an arbitrary location by a delivery pump from a mud port 12 which is communicated with the inside of the processing apparatus main body 1.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention is applied to the laying work of various underground pipes such as water and sewer pipes, and maintains the vacuum in the tank of the mud discharged by the vacuum discharging method, which is one of the propulsion discharging methods. The present invention relates to a device for continuously discharging in a state in which the discharge is performed.

[0002]

[Prior art]

 Conventionally, the propulsion method of excavating while cutting the ground by rotating the cutter head of the excavator is based on groundwater existing in the face, earth and sand, gravel, clay, etc., and muddy water sent to the face. High concentration of mud is added to the wastewater.

[0003] A vacuum discharging method is known as one of the methods for discharging this muddy soil from the face to the upper part of the starting shaft. In this method, as shown in FIG. 7, the mud soil cut by the excavator d by the vacuum suction of the negative pressure generator c connected to the sludge tank b installed around the start shaft a It is transported into the sludge tank b, and every time the sludge tank b is filled with mud, the pressure in the sludge tank b is returned from vacuum to atmospheric pressure and transferred to a mud storage tank or mud treatment tank. That is the current situation.

[0004]

[Problems to be solved by the invention]

 However, in each of the above-mentioned sludge transfer mechanisms, since the vacuum suction is performed by the negative pressure generator provided above the starting shaft, when transferring the high-concentration sludge once filled in the sludge tank, the internal pressure of the sludge tank is reduced. Work had to be returned to atmospheric pressure, which led to a problem that work efficiency had to be reduced due to interruption of excavation work.

In addition, when the starting shaft is long, the vacuum suction power of the negative pressure generator is insufficient, and it becomes difficult to transfer the muddy soil to the upper part of the shaft, and it is necessary to use a negative pressure generator having a higher capacity. There is a problem. Furthermore, installing the above-mentioned mud storage tank or mud treatment tank around the shaft requires a wide area, especially when performing construction work in urban areas, etc. A mud tank or mud treatment device must be installed. In this case, there is a problem that the length of the pipe is further increased, and a load is further applied to the negative pressure generator on the shaft.

In order to solve the above-mentioned problem, the present invention suctions high-concentration muddy soil in the shaft to separate the soil particles and gravels, and sends only the soil particles again to the upper part of the shaft. It is an object of the present invention to provide a continuous sludge treatment apparatus.

[0007]

[Means for Solving the Problems]

 The above object of the present invention can be achieved by an apparatus having the following configuration. That is, the gist of the invention is that a drainage inlet and an inlet are provided at the upper part of the main body of the processing apparatus, and the drainage inlet is connected to a transfer pipe for transferring the sludge discharged from the excavator. In both cases, the suction port is connected to a negative pressure generator, and a sieve plate is provided in the main body of the processing apparatus to separate mud soil into gravel and mud, and the mud separated by the sieve plate is used in the main body of the processing apparatus. A continuous sludge treatment device characterized by a mechanism capable of being transferred to an arbitrary location by a delivery pump from a mud outlet that is in communication with the mud. The sieve plate or the processing unit itself is vibrated by a vibrator or the like to improve the effect of separating the gravel and mud from the sludge, and a gravel take-out port is provided to take out the separated gravel. Configuration.

[0008]

[Action]

 In the present invention, as shown in FIGS. 4 and 5, the processing apparatus main body 1 is installed at the bottom of the starting shaft A, and the negative pressure generator installed around the intake port 3 of the processing apparatus main body 1 and around the starting shaft A. B is connected by a pipe 14. Further, a mud feeding pipe 4 from the excavator C is connected to the mud discharge port 2 of the processing apparatus main body 1, and a mud feeding port 12 of the processing apparatus main body 1 is further connected to the starting shaft A by a transport pipe 15 via a transport pump D. It is configured to be connected to a mud storage tank E installed around. Accordingly, the negative pressure generator B generates a negative pressure in the processing apparatus main body 1 to suck muddy soil from the excavator C into the processing apparatus main body 1 to separate the gravel and the mud and separate the gravel and mud. Only the transport pump D is continuously transported into the mud storage tank E by the transport pump D.

[0009] Therefore, as shown in FIG. 6, the mud F discharged into the processing apparatus main body 1 from the mud inlet 2 is dispersed and dropped on the sieve plate 7 by the buffer plate 6. The sieve plate 7 separates the gravel G from the muddy mud H, and the mud H passes through the sieve plate 7 and is dropped into the mud storage chamber 11.

When the mud H accumulates to the level of the float switch 13a, the transport pump D is operated by the float switch 13a to transport the mud H into the mud storage tank E, and the mud H is moved to the level of the float switch 13b. When H drops, the transport pump D is stopped by the float switch 3b, and by repeating this, continuous sludge treatment can be performed. A sight glass will be provided at the top of the gravel outlet 10 to check how much gravel is stored. Only when the amount increases, the negative pressure generator is turned off, the inside of the processing apparatus body 1 is returned to the atmospheric pressure, the gravel is taken out from the gravel take-out port 10 and transported to around the starting shaft.

[0011]

[Embodiment of the invention]

 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings showing the embodiments. As shown in FIGS. 1 and 2, the upper end of the processing apparatus main body 1 having a cylindrical shape is connected to a sludge inlet 2 and an inlet 3. The mud inlet 2 is connected to a mud pipe 4 from an excavator (not shown), and the inlet 3 is connected to a negative pressure generator (not shown). It is assumed that.

Further, a backflow prevention plate 5 for preventing backflow of the muddy soil is provided at the above-mentioned intake port 3, and at the opening end of the above-mentioned muddy discharge port 2, the wastewater to be injected into the processing apparatus main body 1 is dispersed. This is a mechanism provided with a buffer plate 6 to be made.

Therefore, the inside of the processing apparatus main body 1 is obliquely partitioned by a sieve plate 7, and the sieve plate 7 has sieves 8 arranged in rows and columns as shown in FIG. Thus, the mud discharged into the processing apparatus body 1 is separated into gravel and mud.

Further, a gravel chamber 9 is formed at a lower portion of the sieve plate 7, and a mechanism for extracting the gravel collected in the gravel chamber 9 from a gravel outlet 10 provided on the outer peripheral wall of the processing apparatus main body 1. . In order to smoothly separate the gravel and the mud, the vibrator or the like is used to apply vibration to the sieve plate 7 or a mechanism to apply vibration to the processing apparatus body 1 itself.

Next, a mud port 12 is provided at the bottom of the mud storage chamber 11 formed below the sieve plate 7, and a pump (not shown) connected to the mud port 12 reaches a predetermined location. It is sent mud. The mud storage chamber 11 is provided with float switches 13a and 13b. When the mud accumulates to the level of the float switch 13a, the pump is operated by the float switch 13a to pump the mud, When the mud drops to the level of the float switch 13b, the operation of the pump is stopped by the float switch 3b, and these operations are repeated.

The size of the sieve 8 of the sieve plate 7 can be changed according to the ability of the pump to transport gravel. In the case of a tube type pump, the size of the cylinder type pump can be reduced to about 25 mm. In this case, the size is generally up to about 50 mm. If the ground to be excavated does not contain any gravel, the sieve plate will be removed so that the mud can be transferred more smoothly.

[0017]

[Effect of the invention]

 As described above, according to the present invention, the excavation work efficiency is extremely improved because the muddy soil can be continuously transferred from the excavator without interrupting the vacuum suction by the negative pressure generator as in the related art. Get better. In addition, by installing a continuous sludge treatment device inside the shaft, the negative pressure generator can be downsized, and only the gravel is taken out and only the mud is transported. There is no possibility that sludge cannot be discharged due to insufficient capacity. Furthermore, since only the mud is transported to the mud storage tank, it is possible to respond to the continuous reprocessing process.

[Brief description of the drawings]

FIG. 1 is an explanatory plan view of the present invention.

FIG. 2 is an explanatory side view showing the inside of the present invention.

FIG. 3 is an explanatory front view showing the inside of the present invention.

FIG. 4 is an explanatory cross-sectional view showing an outline of the present invention.

FIG. 5 is an explanatory plan view showing an outline of the present invention.

FIG. 6 is an explanatory view showing an operation state of the present invention.

FIG. 7 is a schematic explanatory view showing a conventional sludge treatment mechanism.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Processing apparatus main body 2 Exhaust discharge port 3 Intake port 5 Backflow prevention plate 6 Buffer plate 7 Sieve plate 8 Sieve 9 Gravel storage room 10 Gravel removal port 11 Mud storage room 12 Mud supply port 13a, b Float type switch

Claims (3)

[Utility model registration claims] An exhaust port and an intake port are provided at an upper portion of a main body of a processing apparatus, and the exhaust port is connected to a transfer pipe for transferring mud discharged from an excavator. At the same time, the above intake port is connected to the negative pressure generator,
A sieve plate for separating muddy soil into gravel and mud is provided in the processing device main body, and the mud separated by the sieve plate is arbitrarily controlled by a pump for sending from a mud port which is communicated with the processing device main body. A continuous sludge treatment device characterized by a mechanism capable of transferring to a place. 2. The continuous sludge treatment apparatus according to claim 1, wherein the sieve plate or the treatment apparatus main body itself is configured to vibrate by a vibrator or the like. 3. The continuous sludge treatment apparatus according to claim 1, wherein the treatment apparatus main body is provided with a gravel take-out port for taking out the gravel separated by the sieve plate.