JP2009209660A - Reclamation material manufacturing system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a reclamation material manufacturing system can simplify a device for metering sediment and cement and a control for mixing the sediment and cement at a predetermined ratio when a reclamation material manufactured by mixing the sediment, the cement, and a separation prevention agent is formed. <P>SOLUTION: This reclamation material manufacturing system includes a sediment feeder device 20 for supplying sediment; a cement supply device 30 for dropping a predetermined amount of cement on a first belt conveyor 10; a mixer 40 for forming a sediment mixture by mixing the sediment and the cement; a nozzle spray 60 for forming a reclamation material by spraying a separation prevention agent solution over the sediment mixture; and a control device 80 for calculating a water-containing weight of the sediment by subtracting the supplied amount of cement set in the cement supply device from the total weight of the sediment and cement metered by a load cell 11, calculating the dry weight of the sediment from the water-containing weight and the moisture content of the sediment, and so adjusting the amount of the sediment supplied from the sediment feeder device 20 that the ratio of the dry weight and the supplied mount of cement is a predetermined value. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a landfill production system for producing a landfill for continuously mixing a stabilizer with an earth and sand mixture and dropping it into water.

  Conventionally, landfill materials such as the construction of artificial islands or revetment of revetments have been performed by mixing landfill excavated soil and submerged dredged soil with stabilizers, etc. to form landfill materials. ing.

  As a method of forming such a landfill material, there is a pre-mixing processing method (for example, see Patent Document 1). Prior to landfilling, a landfill material is formed by adding and mixing a stabilizer (cement) and a separation inhibitor in advance to the earth and sand, and then the landfill material is transported and put into place to solidify as it is. To create ground. The ground formed by this construction method is difficult to liquefy and the earth pressure is reduced. In addition, since ground improvement work after landfill construction is not required, the construction period can be shortened and costs can be reduced.

  The landfill material is formed as follows. For example, while the earth and sand is dropped from the earth and sand feeder device to the start end of the belt conveyor, the stabilizer is dropped onto the belt conveyor via a table feeder or the like. And the earth and sand and the stabilizer which fall from the terminal part of a belt conveyor are thrown into a mixing apparatus, a earth-and-sand mixture is formed, and finally, a landfill material is formed by spraying an anti-separation agent on the earth-and-sand mixture.

  At this time, in order to obtain a good quality landfill material, it is necessary to mix the earth and sand, stabilizer, and anti-separation agent at a predetermined ratio. Based on the above, the supply amount of the earth and sand supplied from the earth and sand feeder device and the stabilizer supplied from the table feeder is adjusted so as to be a predetermined ratio.

  However, in order to measure the earth and sand and the stabilizer supplied from the earth and sand feeder device and the table feeder, it is necessary to introduce a measuring device for each of the earth and sand and the stabilizer. For this reason, the expense which concerns on each measuring device arises, and the mechanism which controls the earth and sand feeder apparatus and the table feeder based on the information obtained from each measuring device also becomes complicated.

In addition, since the earth and sand contain rocks and the viscosity varies, there is a large error even when the earth and sand supplied from the earth and sand feeder device is measured. For this reason, even if it is going to control the supply amount of earth and sand of an earth and sand feeder apparatus based on the measurement result of earth and sand from an earth and sand feeder apparatus, it is difficult to stabilize the ratio of earth and sand and a stabilizer.
Japanese Patent Publication No. 6-17571

  In view of such circumstances, the present invention simplifies the control of mixing earth and sand and stabilizers at a predetermined ratio when mixing earth and sand, stabilizers and anti-separation agents at a predetermined ratio to form a landfill material. An object of the present invention is to provide a landfill production system that can be converted into a landfill.

  In order to achieve the above object, a first aspect of the present invention is a method for producing a landfill material for producing a landfill material to be dropped into water by continuously mixing an anti-separation agent into a sand and sand mixture obtained by mixing earth and sand and a stabilizer. The system includes a first belt conveyor that conveys the earth and sand and the stabilizer, a earth and sand feeder device that supplies earth and sand to a starting end portion of the first belt conveyor, and the first belt conveyor from above the first belt conveyor. A stabilizer supply device for dropping a predetermined amount of stabilizer in the middle of the belt conveyor, and the earth and sand falling from the terminal portion of the first belt conveyor are received, and the earth and sand mixture is mixed by mixing the earth and stabilizer. Separating into a mixing device to be formed, a second belt conveyor for conveying the earth and sand mixture discharged from the mixing device, and an earth and sand mixture falling from the end portion of the second belt conveyor Spraying means for spraying an anti-separation agent dissolving solution in which a stopper is dissolved to form a landfill material, and disposed on the terminal side of the area where the earth and sand of the first belt conveyor is dropped, and earth and sand and stabilizer A weighing device for measuring the total weight of the soil, and subtracting the supply amount of the stabilizer set in the stabilizer supply device from the total weight of the soil and stabilizer to calculate the moisture content of the soil, A control device that calculates the dry weight of the earth and sand based on the water content ratio and adjusts the amount of earth and sand supplied from the earth and sand feeder device so that the ratio between the dry weight and the supply amount of the stabilizer becomes a predetermined value; It is in the landfill material manufacturing system characterized by comprising.

  In the first aspect, the earth and sand and the stabilizer are weighed together, and the amount of earth and sand supplied is controlled so that the earth and sand and the stabilizer become a predetermined ratio based on the result. Thereby, the apparatus which measures earth and sand and a stabilizer separately can be simplified. Moreover, the control for mixing at a predetermined ratio can be simplified.

  According to a second aspect of the present invention, in the landfill material manufacturing system described in the first aspect, the stabilizer supply device includes a silo in which the stabilizer is stored, and a hopper that stores the stabilizer supplied from the silo. And a feeder that discharges a predetermined amount of the stabilizer of the hopper to the outside, and the feeder is disposed at a position where the stabilizer is dropped to the start end side of the weighing device of the first belt conveyor. It is in the landfill production system that features.

  In the second aspect, a predetermined amount of stabilizer can be supplied to the first belt conveyor.

  According to a third aspect of the present invention, in the landfill material manufacturing system described in the second aspect, the control device is configured such that when the stabilizing material stored in the hopper falls below a predetermined amount, the silo is stabilized by the hopper. In a landfill production system characterized by supplying

  In this third aspect, a predetermined amount of stabilizer can be continuously supplied to the first belt conveyor.

  According to a fourth aspect of the present invention, in the landfill material manufacturing system described in any one of the first to third aspects, a separation preventing agent having a mass set in advance with respect to the dry weight of earth and sand is An anti-separation agent dissolving tank that dissolves the anti-separation agent in water to form a predetermined concentration to form an anti-separation agent solution, and an anti-separation agent solution that stores the anti-separation agent solution from the anti-separation agent dissolution tank A liquid storage tank, and a pump that pumps the separation inhibitor solution from the separation inhibitor solution storage tank to the spraying means, and a predetermined amount of the separation inhibitor solution stored in the separation inhibitor solution storage tank. In the landfill production system, the separation inhibitor and water are supplied to the separation inhibitor dissolution tank to form a separation inhibitor solution having a predetermined concentration when the following occurs.

  In the fourth aspect, the separation inhibitor solution having a predetermined concentration can be continuously sprayed onto the earth and sand mixture.

  According to a fifth aspect of the present invention, in the landfill material manufacturing system according to any one of the first to fourth aspects, the control device includes a total weight of earth and sand and a stabilizer from the measuring device, and the supply of the stabilizer. Acquires and records information consisting of the amount of stabilizer supplied from the device and the amount of anti-separation agent solution sprayed by the spraying means, and displays the operation status of the landfill manufacturing system based on the information There is a landfill manufacturing system characterized by being configured to do so.

  In the fifth aspect, an operator or the like can grasp at a glance the operation status of the landfill material production system.

  According to the present invention, the landfill material can be formed by mixing the earth and sand, the stabilizer, and the separation inhibitor at a predetermined ratio, and the equipment for measuring the earth and sand and the stabilizer can be simplified, and at a predetermined ratio. Control for mixing can also be simplified.

  Hereinafter, the best mode for carrying out the present invention will be described. The description of the present embodiment is an exemplification, and the present invention is not limited to the following description.

  FIG. 1 is a schematic configuration diagram of a landfill production system according to the present embodiment.

  As shown in FIG. 1, the first belt conveyor 10 is disposed to be inclined so as to rise in the transport direction. The first belt conveyer 10 is supplied with earth and sand from a later-described earth and sand feeder device 20 at its starting end and supplied with cement as an example of a stabilizer from a cement supply device (stabilizing material supply device) 30 to the downstream side thereof. The And these earth and sand and cement are dropped from the terminal part of the 1st belt conveyor 10, and are supplied to the mixing apparatus 40. FIG. Moreover, the load cell 11 is provided in the 1st belt conveyor 10, The load cell 11 measures the weight of the earth and sand conveyed by the 1st belt conveyor 10, and cement.

  In addition, in this embodiment, although comprised from the single belt conveyor, it is not limited to such a structure, It is good also as a 1st belt conveyor by connecting a some belt conveyor in series. Moreover, the 1st belt conveyor 10 does not need to raise toward the conveyance direction, and may be horizontal.

  FIG. 2A is a front view of the earth and sand feeder device, and FIG. 2B is a cross-sectional view taken along line AA in FIG.

  As shown in the figure, the earth and sand feeder device 20 includes an earth and sand hopper 21 to which earth and sand 100 is supplied through an upper opening 23, and a belt feeder 22 that conveys the earth and sand 100 in the earth and sand hopper 21 to the outside. The earth and sand hopper 21 is provided with a discharge port 24 on a side surface, and an opening is provided at the bottom of the earth and sand hopper 21. The belt feeder 22 is disposed so as to receive the earth and sand 100 through the opening and to convey the earth and sand 100 to the outside through the discharge port 24. The terminal portion of the belt feeder 22 is located above the starting end portion of the first belt conveyor 10, and the earth and sand conveyed by the belt feeder 22 falls from the terminal portion and is supplied to the starting end portion of the first belt conveyor 10. Is done.

  The conveyor speed of the belt feeder 22 is adjusted by a control device 70 described later. That is, the amount of earth and sand supplied from the earth and sand feeder device 20 to the first belt conveyor 10 can be adjusted by adjusting the conveyance speed of the belt feeder 22.

  Returning to FIG. 1, the cement supply device 30 includes a cement silo 31 for storing powdered cement, a cement hopper 32 for storing cement supplied from the cement silo 31, and cement from the cement hopper 32 for the first belt conveyor 10. It is comprised from the table feeder 33 dropped down.

  The cement hopper 32 is supplied with cement from the cement silo 31 so that a predetermined amount of cement is always stored. Further, cement is supplied to the table feeder 33 from the cement hopper 32. The table feeder 33 discharges the cement to the outside so that the discharge amount per unit time is constant. This discharge amount is set by the control device 70.

  Further, as will be described below, the table feeder 33 is disposed such that the cement discharged from the table feeder 33 is closer to the start end side than the load cell 11 disposed on the first belt conveyor 10.

  Fig.3 (a) is a top view which shows the positional relationship of a 1st belt conveyor and a cement supply apparatus, FIG.3 (b) is an AA arrow directional view of Fig.3 (a).

  As shown in FIGS. 3A and 3B, the table feeder 33 is provided with a discharge port 34 serving as an outlet for cement discharged from the table feeder 33. The discharge port 34 is located above the first belt conveyor 10 and is disposed so as to drop cement onto the first belt conveyor 10. Further, the discharge port 34 is disposed on the start end side of the load cell 11 of the first belt conveyor 10. As a result, the total weight of the earth and sand supplied from the earth and sand feeder device 20 to the start end side of the first belt conveyor 10 and the cement supplied from the table feeder 33 is measured by the load cell 11.

  In this embodiment, the table feeder 33 is used to supply a predetermined amount of cement. However, the present invention is not limited to this. For example, a screw feeder, a rotary feeder, or the like that can supply a predetermined amount of cement based on a set value may be used.

  The mixing device 40 crushes and mixes earth and sand and cement with a chain 45 that rotates at high speed in a cylindrical casing 41. More specifically, the housing 41 is provided with a supply port 42 as an opening in the upper portion, and receives earth and sand and cement dropped from the terminal portion of the first belt conveyor 10 through the supply port 42. ing. A rotation shaft 44 is rotatably provided in the housing 41. A plurality of chains 45 are attached to the rotation shaft 44.

  When the rotation shaft 44 rotates, the chain 45 also rotates around the rotation shaft 44. In this state, when earth and sand and cement are supplied from the supply port 42, the earth and sand and cement are crushed and mixed by the chain 45 while falling in the housing 41. Hereinafter, the earth and sand mixed by the mixing device 40 are referred to as an earth and sand mixture. The earth and sand mixture is discharged from the mixing device 40 onto the second belt conveyor 50 disposed below the mixing device 40.

  In the present embodiment, the mixing device is crushed and mixed by the chain 45 that rotates at high speed.

  The 2nd belt conveyor 50 is arrange | positioned so that the earth and sand mixture discharged | emitted from the mixing apparatus 40 may be conveyed to a predetermined place. Two nozzle sprays 60, which are an example of spraying means for spraying the anti-separation agent solution to the earth and sand mixture falling from the end portion, are disposed below the end portion of the second belt conveyor 50. Yes. Each nozzle spray 60 sprays the separation inhibitor solution from both sides so as to sandwich the falling earth and sand mixture. Thereby, the earth and sand mixture and the separation inhibitor solution are mixed evenly.

  In the separation inhibitor dissolving liquid sprayed from the nozzle spray 60, a separation inhibitor having a predetermined ratio is dissolved with respect to the dry weight of the earth and sand contained in the earth and sand mixture. As a result, the separation inhibitor solution is sprayed onto the earth and sand mixture falling from the second belt conveyor 50, thereby forming a landfill material in which earth and sand, cement, and the separation inhibitor are mixed at a predetermined ratio.

  Here, the separation preventing agent is a water-soluble polymer material that prevents separation of earth and sand and cement in water, and examples thereof include cellulose-based and acrylic-based water-soluble polymers. The separation inhibitor solution is formed as follows.

  FIG. 4 is a schematic configuration diagram of the landfill material manufacturing system according to the present embodiment.

  As shown in the figure, the seawater tank 80 stores seawater 101 pumped up by a water pumping pump 81. Further, the separation preventing agent powder feeder 82 stores a powdered separation preventing agent.

  The separation inhibitor dissolving tank 83 is supplied with seawater 101 from the seawater tank 80 via the feed water pump 84, and supplied with the separation inhibitor from the separation inhibitor powder feeder 82. As a result, the separation inhibitor is dissolved in the seawater 101 to form a separation inhibitor solution. The separation inhibitor dissolving tank 83 is provided with a stirrer 85, and the stirrer 85 promotes dissolution of the separation inhibitor in the seawater 101 by stirring. The anti-separation agent solution formed in the anti-separation agent dissolving tank 83 is supplied to the anti-separation agent solution storage tank 87 via the anti-separation agent solution pump 86.

  The anti-separation agent solution storage tank 87 and the nozzle spray 60 are connected via a metering pump 88, and the anti-separation agent solution stored in the anti-separation agent solution storage tank 87 is brought to a predetermined pressure by the metering pump 88. And is sprayed onto the earth and sand mixture falling from the second belt conveyor 50 through the nozzle spray 60. An electromagnetic flow meter 89 is attached between the metering pump 88 and the nozzle spray 60, and the flow rate of the separation inhibitor measured by the electromagnetic flow meter 89 is transmitted to the control device 70.

  Further, the separation inhibitor solution storage tank 87 is supplied with the separation inhibitor solution from the separation inhibitor dissolution tank 83 so that the amount of the separation inhibitor solution stored therein is constant. Similarly, the separation inhibitor dissolving tank 83 is supplied with seawater 101 from the seawater tank 80 so that the amount of the separation inhibitor dissolving liquid stored therein is constant, and from the separation inhibitor powder feeder 82. An anti-separation agent is supplied.

  In this embodiment, seawater is used as a solvent for the separation inhibitor solution, but water may be used.

  The control device 70 is configured to obtain the total weight of earth and sand and cement from the load cell 11 and adjust the conveying speed of the belt feeder 22 of the earth and sand feeder device 20. The control device 70 is composed of, for example, a sequencer, an inverter, and information processing equipment. For example, the sequencer obtains the total weight from the load cell 11, performs a predetermined calculation based on the total weight, and adjusts the conveyance speed of the belt feeder 22 via the inverter based on the calculation result.

  Specifically, the control device 70 first subtracts the cement supply amount set in the cement supply device 30 from the total weight. The result of this subtraction is referred to as the moisture content. And the moisture content of the earth and sand measured separately is previously input into the control apparatus 70, and the dry weight of earth and sand is calculated from this moisture content and moisture content. Next, the conveying speed of the belt feeder 22 is adjusted so that the ratio between the dry weight and the cement supply amount becomes a predetermined value, and the amount of earth and sand supplied from the earth and sand feeder device 20 to the first belt conveyor 10 is adjusted. Adjust.

  In addition, the control device 70 controls the cement hopper 32 to always supply a predetermined amount of cement. Specifically, it is as follows. As shown in FIG. 1, an upper level meter 32H is provided at the upper part of the cement hopper 32, and a lower level meter 32L is provided at the lower part. Both the upper level meter 32 </ b> H and the lower level meter 32 </ b> L measure the height of cement stored in the cement hopper 32. The heights measured by the upper level meter 32H and the lower level meter 32L are transmitted to the control device 70. The control device 70 supplies cement from the cement silo 31 to the cement hopper 32 when the height of the cement in the cement hopper 32 falls below the height of the lower level meter 32L. When the height reaches the height of the upper level meter 32H, the supply is stopped. Similarly, an upper level meter 31H is provided at the upper part of the cement silo 31, and a lower level meter 31L is provided at the lower part. The upper level meter 31H and the lower level meter 31L both measure the height of cement stored in the cement silo 31. The heights measured by the upper level meter 31H and the lower level meter 31L are transmitted to the control device 70. For example, when the cement in the cement silo 31 falls below a predetermined amount, the operator is notified of that fact. It is like that.

  Moreover, the control apparatus 70 acquires various information from various apparatuses, such as the earth and sand feeder apparatus 20 and the cement supply apparatus 30, and has recorded these information by information processing apparatus. Examples of information obtained from various devices include the total weight of soil and cement measured by the load cell 11, the amount of cement supplied from the cement supply device 30, and the cement stored in the cement silo 31 and the cement hopper 32. These are the remaining amount, the remaining amount of the separation inhibitor solution stored in the separation inhibitor solution storage tank 87, the state of the mixing device 40, the flow rate of the separation inhibitor solution measured by the electromagnetic flow meter 89, and the like. These various types of information are plotted and displayed in a time series and are subjected to statistical processing such as the total amount of landfill material formed within a predetermined period, and are displayed and output. In addition, the information processing device displays various information together with images simulating various devices related to the landfill material manufacturing system, thereby monitoring the overall configuration of the landfill material manufacturing system and the operating status of various devices. Also equipped. In short, the information processing device processes and displays various types of information so that workers and the like can grasp the operating status of the landfill production system.

  According to the landfill material manufacturing system described above, the first belt conveyor 10 is supplied with earth and sand from the earth and sand feeder apparatus 20 and cement from the cement supply apparatus 30, and the mixing apparatus 40 mixes these earth and sand and cement. Transport to. And in the mixing apparatus 40, an earth and sand mixture is formed from earth and sand and cement. When the earth and sand mixture falls from the second belt conveyor 50, the separation inhibitor solution is sprayed from the nozzle spray 60, whereby the earth and sand mixture and the separation agent solution are mixed to form a landfill material.

  The landfill material thus formed is useful when applied to the construction of an artificial island or the like using the landfill material. This is because the anti-separation agent is added to the earth and sand mixture, so that even when dropped in water, cement does not separate from the earth and sand, and the addition of the anti-separation agent adds adhesion to the earth and sand. This is because it is possible to prevent liquefaction from occurring on an artificial island using a landfill material, and it is stable against landslides and earth pressure.

  As described above, when the landfill material is formed by mixing the earth and sand, the cement, and the separation preventing agent so as to have a predetermined ratio, the load cell 11 does not measure the respective supply amounts of the earth and sand and the cement. The total weight of earth and sand and cement was measured.

  This is particularly because cement (stabilizer) has little variation in grain shape, so once the control device 70 is set to supply a predetermined amount of cement to the cement supply device 30, the predetermined amount of cement will be as set. It is because it is discharged. Therefore, if the control device 70 obtains the total weight of the earth and sand and the cement via the load cell 11, the control device 70 can calculate the water content weight by subtracting the supply amount set in the cement supply device 30 from the total weight. The amount of earth and sand conveyed to the first belt conveyor 10 can be calculated from the moisture content of the earth and sand.

  Thereby, since it is not necessary to individually measure the amount of cement supplied from the cement supply device 30 and the amount of earth and sand supplied from the earth and sand feeder device 20, equipment related to measurement becomes unnecessary, and cost reduction is achieved. And the configuration of the landfill material manufacturing system can be simplified.

  In particular, it is difficult to measure the supply amount of earth and sand by providing a load cell in the earth and sand feeder device 20, and it is difficult to control the supply amount to be constant based on this measurement value. Then, since the soil and cement are collectively measured by the first belt conveyor 10, such a problem that is affected by the fluctuation of the supply amount of the soil cannot occur.

  Furthermore, once the amount of the cement supplied from the cement supply device 30 is set, the control device 70 only needs to adjust the supply amount of the earth and sand of the earth and sand feeder device 20, so that the earth and sand and cement are removed. Control to a predetermined ratio can be simplified.

  Further, the table feeder 33 is disposed on the start end side of the load cell 11 of the first belt conveyor 10 in order to allow the load cell 11 to measure earth and sand and cement. On the other hand, since the starting end side of the first belt conveyor 10 is low and the terminal end side is high, the table feeder 33 is disposed in a relatively low place. That is, since it is not necessary to dispose the table feeder 33 at a high place, the cost related to the member that supports the table feeder 33 can be reduced.

It is a schematic structure figure of a landfill material manufacturing system concerning an embodiment. It is the front view and sectional drawing of an earth and sand feeder apparatus. It is the top view and arrow view which show the positional relationship of a 1st belt conveyor and a cement supply apparatus. It is a schematic structure figure of a landfill material manufacturing system concerning an embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Belt conveyor 11 Load cell 20 Sediment feeder device 21 Sediment hopper 22 Belt feeder 23 Upper opening 24 Discharge port 31 Cement supply device 31 Cement silo 31L Lower level meter 31H Upper level meter 32 Cement hopper 32L Lower level meter 32H Upper level meter 33 Table feeder 34 Discharge port 40 Mixing device 41 Housing 42 Supply port 44 Rotating shaft 45 Chain 50 Belt conveyor 60 Nozzle spray 70 Control device 80 Seawater tank 81 Water pumping pump 82 Separation inhibitor powder feeder 83 Separation inhibitor dissolution tank 84 Water supply pump 85 Stirrer 86 Separation inhibitor solution pump 87 Separation agent solution storage tank 88 Metering pump 89 Electromagnetic flow meter 100 Earth and sand 101 Seawater

Claims (5)

A landfill production system for producing a landfill material to be dropped into water by continuously mixing an anti-separation agent into a sand-and-sand mixture in which earth and sand and a stabilizer are mixed,
A first belt conveyor for conveying the earth and sand and the stabilizer;
An earth and sand feeder device for supplying earth and sand to the starting end of the first belt conveyor;
A stabilizer supply device for dropping a predetermined amount of stabilizer from above the first belt conveyor into the middle of the first belt conveyor;
A mixing device for receiving earth and sand falling from the terminal end of the first belt conveyor and mixing the earth and sand and forming the earth and sand mixture;
A second belt conveyor for conveying the earth and sand mixture discharged from the mixing device;
Spraying means for forming a landfill material by spraying an anti-separation agent solution obtained by dissolving an anti-separation agent in the earth and sand mixture falling from the terminal portion of the second belt conveyor;
A weighing device disposed on the terminal side of the area where the earth and sand of the first belt conveyor is dropped and weighing the total weight of earth and sand and a stabilizer;
The moisture content of the earth and sand is calculated by subtracting the supply amount of the stabilizer set in the stabilizer material supply device from the total weight of the earth and sand and the stabilizer, and the dry weight of the earth and sand is calculated based on the moisture content and the moisture content of the earth and sand. A landfill material comprising: a control device that calculates and adjusts the amount of earth and sand supplied from the earth and sand feeder device so that a ratio between the dry weight and the supply amount of the stabilizing material becomes a predetermined value Manufacturing system. In the landfill material manufacturing system according to claim 1,
The stabilizing material supply device is composed of a silo for storing the stabilizing material, a hopper for storing the stabilizing material supplied from the silo, and a feeder for discharging a predetermined amount of the stabilizing material of the hopper to the outside.
The landfill production system according to claim 1, wherein the feeder is disposed at a position where the stabilizer is dropped toward the start end side of the weighing device of the first belt conveyor. In the landfill production system according to claim 2,
The control device causes the hopper to supply a stabilizing material from the silo to the hopper when the stabilizing material stored in the hopper falls below a certain amount. In the landfill material manufacturing system according to any one of claims 1 to 3,
An anti-separation agent dissolution tank that forms an anti-separation agent solution by dissolving the anti-separation agent in water so that the anti-separation agent having a preset mass with respect to the dry weight of the earth and sand has a predetermined concentration relative to water. When,
An anti-separation agent solution storage tank for storing an anti-separation agent solution from the anti-separation agent solution tank;
A pump for pumping the separation inhibitor solution from the separation inhibitor solution storage tank to the spray means;
When the anti-separation agent solution stored in the anti-separation agent solution storage tank falls below a predetermined amount, the anti-separation agent and water are supplied to the anti-separation agent dissolution tank to dissolve the anti-separation agent at a predetermined concentration. A landfill production system characterized by forming a liquid. In the landfill material manufacturing system according to any one of claims 1 to 4,
The control device comprises information comprising the total weight of the earth and sand and the stabilizer from the metering device, the supply amount of the stabilizer from the stabilizer supply device, and the amount of the separation inhibitor solution sprayed by the spray means. The landfill material manufacturing system is configured to display the operation status of the landfill material manufacturing system based on the information.

Images