JP3189765U - Landfill production system - Google Patents

Abstract

A landfill production system capable of efficiently producing landfill in a limited space in a final disposal site.
A landfill production system has a system unit 4 for producing a type A landfill and a type B landfill for landfill in each landfill section of a final disposal site. The system unit 4 includes a kneading tank 5, a type A temporary storage place 6 for the A type waste, a type B temporary storage place 7 for the B type waste, and a cement silo 8 that air-feeds cement to the kneading tank 5. The A-type temporary storage place 6, the kneading tank 5 and the B-type temporary storage place 7 form an arrangement in one direction arranged in this order, with a cement silo on one side of the arrangement and a heavy machine on the other side. 10 or the working space 13 of the dump truck 12 is provided.
[Selection] Figure 2

Description

  The present invention relates to a landfill material manufacturing system for manufacturing a landfill material used for landfill of a large number of landfill sections set by removing ground in a final disposal site for waste.

  Conventionally, as a method for producing this kind of landfill material, there has been known a method in which inorganic waste is divided into high-density waste having large grains and low-density waste having small grains, and two kinds of landfill materials are produced using each as a material. (See Patent Document 1). The two types of landfill materials are disposed in two different spaces, compacted, and disposed in each landfill section set in a horizontal direction and a vertical direction by removing the ground in advance at the final disposal site for waste.

  When manufacturing the landfill material, a cement silo and a kneading tank installed at the final disposal site are used. That is, a predetermined amount of cement is input from a cement silo as a material for a landfill into a kneading tank, and a predetermined amount of high-density waste is input by a backhoe, and water is added as necessary. Then, by kneading these materials with a stirrer attached to the arm tip of the backhoe, a landfill material made from high-density waste can be obtained.

  Landfills made from low-density waste can be obtained in the same manner. Two types of landfill materials are manufactured in several times for each landfill section. The produced high-density waste landfill material is sequentially filled in one of the two spaces in the landfill section, and the consolidated low-density waste landfill material is sequentially arranged in the other space. The landfill material filled in the landfill section is compacted and solidifies after a certain curing period. In this way, the waste is used for the regeneration of the ground and disposed of.

Japanese Patent No. 4317260

  Production of the above-mentioned two types of landfill materials and filling of the landfill sections are repeated for a large number of landfill sections at the final disposal site and several times, for example, five times for each landfill section. For this reason, it is necessary to produce the two types of landfill materials as efficiently as possible.

  In the final disposal site, landfill materials are filled, compacted, cured, etc. in each landfill section. Various heavy machinery and trucks for transporting landfill materials, waste, and various materials are also available. Since it exists, it is necessary to produce landfill material by effectively using the space in the limited final disposal site.

  An object of the present invention is to provide a landfill material manufacturing system and a landfill material manufacturing method capable of efficiently manufacturing a landfill material in a limited space in a final disposal site in view of the problems of the related art.

The landfill material manufacturing system of the first device is a landfill section for class A landfill material and class B landfill material used for landfill of each landfill section that has been set up by removing the ground at the final disposal site of waste. A landfill production system having a system unit for alternatively producing a predetermined amount in parallel with the landfill, wherein the type A landfill has a grain size or a toxic substance concentration below a predetermined standard. It is obtained by kneading a certain type A waste, cement, and a necessary amount of water or heavy metal fixing agent, and the type B landfill material is a type B waste whose particle size or harmful substance concentration exceeds the predetermined standard, A kneading tank which is obtained by kneading cement and a necessary amount of water or heavy metal fixing agent, and wherein the system unit is used alternatively for the production of the type A landfill material and the type B landfill material; The Class A waste is brought in and temporarily stored A Type A temporary storage site, a Type B temporary storage site into which the Type B waste is carried, and a cement silo that pneumatically feeds cement to the kneading tank, the kneading tank, the Class A temporary storage site, The B-type temporary storage place forms a one-way array in which the kneading tank is disposed between the A-type temporary storage place and the B-type temporary storage place. Is disposed at a position corresponding to the kneading tank, and on the other side of the array, the A-type waste or the B-type waste is carried into the A-type temporary storage place or the B-type temporary storage place, the A Transfer of the A-type waste or B-type waste from the seed temporary storage site or the B-type temporary storage site to the kneading tank, kneading in the kneading tank, and the A-type landfill or B-type landfill from the kneading tank It is characterized by having a working space for heavy machinery or dump trucks for carrying

  According to the first device, when landfill sections are sequentially landfilled, the A-type landfill material and the B-type landfill material are used for each landfill section. For this reason, the type A landfill material or the type B landfill material required at each landfill stage in each landfill section is alternatively manufactured.

  In the production of the A-type landfill material, the A-type waste is supplied to the kneading tank from the A-type temporary storage site located on one side of the kneading tank. The required amount of cement is supplied from a cement silo on one side of the arrangement formed by the type A temporary storage, the kneading tank, and the type B temporary storage.

  At this time, the supply of the A type waste from the A type temporary storage place to the kneading tank can be performed by a heavy machine, for example, a hydraulic excavator with a bucket, disposed in the working space located on the other side of the arrangement. The temporary storage of the A-type waste in the A-type temporary storage place can be performed by carrying the A-type waste into the A-type temporary storage place from the working space side by a dump truck or the like.

  Kneading of the Class A waste and cement supplied to the kneading tank can be performed by a hydraulic excavator with a mixer disposed in the working space. Moreover, the transfer to the landfill section of the Class A landfill obtained by kneading can be performed from the working space side by a power shovel with a bucket or a dump truck.

  In the production of the Type B landfill, as in the case of the Type A waste, the introduction of the Type B waste into the Type B temporary storage site, the supply of the Type B waste to the kneading tank, the kneading in the kneading tank, and The B type landfill material is transferred to the landfill section.

  According to this, the supply of the A type waste or the B type waste from the A type temporary storage site or the B type temporary storage site to the kneading tank is performed by the shortest route by the heavy machinery on the working space, and the A type waste or B A kneading tank is also used for kneading seed waste and cement, etc., and using a working space, waste can be carried in by a dump truck or heavy equipment, supplied, kneaded, transported to landfill, etc. without any trouble.

  Therefore, necessary A type landfill material or B type landfill material is sequentially used according to the landfill stage in each landfill section while effectively utilizing the limited space in the final disposal site for the A type landfill material and the B type landfill material. It can be selected and manufactured efficiently.

  The landfill production system according to a second aspect is the landfill material manufacturing system according to the first aspect, wherein the system unit is installed on the one side of the array and stores water supplied to the kneading tank; the kneading tank; It is installed between the A-type temporary storage site or the B-type temporary storage site, and includes a storage tank for storing equipment cleaning water or a water-soluble or water-dispersible heavy metal fixing agent.

  According to this, water or a water-soluble or water-dispersible heavy metal fixing agent can be immediately supplied to the kneading tank as needed. In addition, by storing equipment cleaning water in the storage tank, buckets, mixers, and the like of heavy machinery located in the working space can be appropriately cleaned.

  The landfill production system according to the third aspect is the first or second aspect, wherein the plurality of system units are arranged such that the type A temporary storage place or the type B temporary storage place is also used between adjacent system units. It is characterized by being arranged in the direction.

  According to the third device, also in the kneading tank of each system unit, there are the A type temporary storage site and the B type temporary storage site on both sides thereof, and the cement silo exists in the corresponding position. Further, on the side opposite to the cement silo of the arrangement formed by all the system units, there is an operating space extending along the arrangement. Further, the A type temporary storage place or the B type temporary storage place is also used between adjacent system units.

  For this reason, by using the kneading tank of each system unit in parallel, more A type landfill material or B type landfill material can be supplied efficiently, utilizing the space in a final disposal site more effectively. it can.

  Further, when a plurality of landfill sections are landed in parallel, the kneading tanks of each system unit are appropriately distributed and used for the production of the Class A landfill material or the Class B landfill material, thereby requiring the landfill sections in each landfill. The type A landfill material or the type B landfill material can be efficiently manufactured and supplied.

It is a top view of the landfill area | region of the final disposal site where the landfill material manufacturing system which concerns on 1st Embodiment of this invention was applied. It is a top view of the landfill material manufacturing system of a 1st embodiment. It is a top view of the landfill production system of a 2nd embodiment. It is a perspective view which shows an image when a part of FIG. 3 is seen from the working space side. It is a flowchart which shows the manufacturing process by the landfill material manufacturing system of FIGS.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a plan view of a landfill area in a final disposal site for waste to which a landfill production system according to the first embodiment is applied. As shown in FIG. 1, this landfill material production system 1 is used in the landfill area of the final disposal site 2 to produce a landfill material using inorganic waste as a material.

  In the landfill area of the final disposal site 2, a large number of landfill sections 3 are set in a horizontal direction and a vertical direction in a space for landfill secured by removing the ground beforehand. One landfill section 3 has, for example, a rectangular parallelepiped shape having a length of 8 m, a width of 6.8 m, a height of 1.3 m, and a height direction coinciding with the vertical direction.

  The number of sections of the landfill section 3 in the vertical direction is 15, for example. Accordingly, the final disposal site 2 has a large number of landfill sections 3 that are horizontally divided into a grid pattern and stacked, for example, in 15 layers.

  The production of the landfill material by the landfill material production system 1 is performed a plurality of times for one landfill section 3. The landfill material is sequentially supplied to each landfill section 3, solidified, and used for the regeneration of the ground. The landfill of the landfill section 3 is performed from the landfill section 3 belonging to the lower layer. In the same layer, landfill is performed sequentially on adjacent landfill sections 3.

FIG. 2 is a plan view of the landfill material production system 1. As shown in FIG. 2, the landfill production system 1 selects a necessary amount of each of the A type landfill material and the B type landfill material used for landfill in each landfill section in parallel with the landfill in each landfill section. System unit 4 as a minimum configuration for manufacturing the system.

  The system unit 4 includes a kneading tank 5 that is used alternatively for the production of the A-type landfill material and the B-type landfill material, the A-type temporary storage place 6 where the A-type waste is carried and temporarily placed, and the B-type A B-type temporary storage place 7 into which waste is carried and temporarily placed, and a cement silo 8 that pneumatically feeds cement to the kneading tank 5 are provided.

  Type A waste is a waste having a particle size or a hazardous substance concentration of a predetermined standard or less among inorganic wastes. The B-type waste is a waste having a particle size or a harmful substance concentration exceeding the predetermined standard among the inorganic wastes. Hazardous substances include radioactive substances as well as hazardous substances and heavy metals contained in incineration ash of general waste such as garbage and waste plastic.

  Specifically, as Class A waste and Class B waste, the smaller grain waste and the larger grain waste separated by a sizing machine such as Trommel, and the amount of radioactivity per kilogram This is applicable to wastes having a value of 500 becquerel or less and wastes exceeding this.

  The kneading tank 5, the A-type temporary storage place 6, and the B-type temporary storage place 7 form a unidirectional arrangement in which the kneading tank 5 is disposed between the A-type temporary storage place 6 and the B-type temporary storage place 7. On one side of the array, a cement silo 8 is disposed at a position corresponding to the kneading tank 5. On the other side of the arrangement, there is an operating space 13 for operating heavy equipment such as a hydraulic excavator 10 with a bucket 9 and a hydraulic excavator 10 with a mixer 11, a dump truck 12, and the like.

  The dumping car 12 can be used to carry the A-type waste or the B-type waste into the A-type temporary storage 6 or the B-type temporary storage 7. The transfer of the A type waste or the B type waste from the A type temporary storage site 6 or the B type temporary storage site 7 to the kneading tank 5 can be performed using a hydraulic excavator 10 with a bucket 9.

  The kneading in the kneading tank 5 can be performed using a hydraulic excavator 10 with a mixer 11. The transfer of the type A landfill material or the type B landfill material from the kneading tank 5 to the landfill section 3 (see FIG. 1) being landfilled can be performed using a hydraulic excavator 10 with a bucket 9 and a dump truck 12.

  Further, the system unit 4 includes a water tank 14 for storing water to be supplied to the kneading tank 5, a storage tank 15 for storing equipment cleaning water, and a storage 16 for storing heavy metal fixing agents. The storage tank 15 may be used for storing a water-soluble or water-dispersible heavy metal fixing agent. Or you may add the storage tank for that separately.

  The water tank 14 and the storage 16 are installed on the one side of the arrangement formed by the kneading tank 5, the A-type temporary storage place 6, and the B-type temporary storage place 7. The storage tank 15 is disposed between the kneading tank 5 and the A-type temporary storage place 6. Instead of this, the storage tank 15 may be disposed between the kneading tank 5 and the B-type temporary storage place 7. Accordingly, the other side of the array can be applied to the above-described working space 13 that extends along the array.

  Further, the system unit 4 may be provided with a temporary sand storage place 17 adjacent to the B-type temporary storage place 7 or the like. This sand can be used, for example, when preparing a mortar for a coating layer provided on a compacted body formed of a landfill material in each landfill section 3 (see FIG. 1).

Further, the system unit 4 may include a receiving hopper 18 that can be used when supplying cement from the cement silo 8 to the kneading tank 5. The receiving hopper 18 is disposed at the cement supply position in the kneading tank 5, and the cement is air-fed into the interior, and then retracted, whereby the cement can be supplied to the supply position.

  FIG. 3 is a plan view showing a landfill production system according to the second embodiment. FIG. 4 is a perspective view showing an image when a part of FIG. 3 is viewed from the working space side. As shown in FIGS. 3 and 4, in this landfill production system, the two system units 21 and 22 similar to the system unit 4 described above are used as the A-type temporary storage place 6 between the adjacent system units 21 and 22. To be arranged side by side.

  That is, this landfill production system 20 includes one type A temporary storage place 6, two kneading tanks 5, and two type B temporary storage places, and a type A temporary storage place 6 exists on one side of each kneading tank 5. An arrangement in which the B-type temporary storage place 7 exists on the other side and the kneading tank 5 and the A-type temporary storage place 6 or the B-type temporary storage place 7 are alternately arranged, and one of the arrangements And two cement silos 8 respectively arranged at positions corresponding to the kneading tanks 5 on the side.

  On the other side of the arrangement, various heavy equipment such as a hydraulic excavator 10 and a dump truck 12 are operated from a position corresponding to one B-type temporary storage place 7 to a position corresponding to the other B-type temporary storage place 7. The working space 13 extends. The storage tank 15, the water tank 14, and the storage 16 are shared between the system units 21 and 22.

  FIG. 5 is a flowchart showing a process of manufacturing a landfill material by the landfill material manufacturing system 1 of FIG. 2 or the landfill material manufacturing system 20 of FIGS. 3 and 4. As shown in FIG. 5, when manufacturing the landfill material, first, in step S <b> 1, the A type waste or the B type waste is transferred from the working space 13 side to the A type temporary storage place 6 or the B type temporary storage place 7 by the dump truck 12. Carry in and temporarily place (first step). This step is performed at any time according to the remaining amount of the A-type waste or the B-type waste in the A-type temporary storage 6 or the B-type temporary storage 7.

  Next, in step S2, the landfill material to be manufactured (hereinafter referred to as “target landfill material”) among the type A landfill material or the type B landfill material, and a kneading tank (hereinafter referred to as “target landfill material”). , “Used kneading tank”) is determined (second step).

  The target landfill material is determined in consideration of the type A landfill material or the type B landfill material required next in each landfill section 3 during the landfill. That is, in each landfill section 3, first, the B type landfill material is filled and compacted for each layer for a plurality of layers, and then the A type landfill material is filled and compacted for each layer for a plurality of layers. Landfill is performed at.

  Therefore, for example, the required landfill material is determined as the target landfill material according to the stage of the current landfill procedure in the landfill section 3 that is currently the target of the landfill. When a plurality of landfill sections 3 are landed in parallel, a necessary type of landfill material is determined as the target landfill material according to the stage of the current landfill procedure in the landfill sections 3.

  The use kneading tank is determined in consideration of the use situation of each kneading tank 5. When there is only one kneading tank 5 as in the landfill material production system 1 of FIG. 2, the kneading tank 5 is determined as the use kneading tank. When there are a plurality of kneading tanks 5 as in the case of the landfill material manufacturing system 20 in FIG. 3, for example, if there is an empty kneading tank 5 out of the two kneading tanks 5, Determined to be used kneading tank. If there is no empty kneading tank 5, then the kneading tank 5 that becomes empty most quickly is determined as the use kneading tank.

  When the target landfill material and the used kneading tank are determined, next, in step S3, an amount of cement suitable for manufacturing the target landfill material is supplied to the used kneading tank from the corresponding cement silo 8 by air pressure feeding (first operation). 3 steps).

  The cement is supplied by placing a receiving hopper 18 in which a corresponding air pressure hose 23 of a cement silo 8 is connected to a hose joint 18a at a supply position in the target kneading tank 5 (see FIG. 3). The cement is received from 8 and air-fed to the hopper 18, and then the receiving hopper 18 is retracted. The receiving hopper 18 is arranged and retracted by suspending the receiving hopper 18 with a crane.

  Next, in step S4, the type A waste or the type B waste used for manufacturing the target landfill material is supplied to the use kneading tank (fourth step). This supply is performed from the A-type temporary storage place 6 or the B-type temporary storage place 7 closest to the used kneading tank. Further, this supply can be performed by transferring A-type waste or B-type waste from the A-type temporary storage place 6 or the B-type temporary storage place 7 using the hydraulic excavator 10 equipped with the bucket 9.

  Next, in step S5, a necessary amount of water is supplied to the used kneading tank (fifth step). For this supply, water stored in the water tank 14 is used.

  Next, in step S6, a necessary amount of heavy metal fixing agent is supplied to the used kneading tank (sixth step). For this supply, a powdery heavy metal fixing agent stored in the storage 16 is used. Instead, a water-soluble or water-dispersible heavy metal fixing agent may be stored in the storage tank 15 and used.

  Next, in step S7, the cement, type A waste or type B waste, and a necessary amount of water or heavy metal fixing agent supplied to the used kneading tank are kneaded (seventh step). This kneading is performed by a hydraulic excavator 10 with a mixer 11 disposed in the working space 13. Thereby, the 1st class A landfill material or B class landfill material supplied to the landfill division 3 is obtained.

  Next, in step S8, the type A landfill material or the type B landfill material obtained by the kneading is transferred to the landfill section 3 being landfilled (eighth step). This transfer is performed by a hydraulic excavator 10 with a bucket 9 and a dump truck 12 arranged in the working space 13. That is, the A type landfill material or the B type landfill material in the used kneading tank is loaded on the dump truck 12 by the hydraulic excavator 10, carried to the landfill section 3 by the dump truck 12, and discharged into the landfill section 3.

  The type A landfill material and the type B landfill material which are transferred to the landfill section 3 and used for the landfill are formed into a compacted body at the time of the landfill, and further solidified through a curing period. Thereby, the Class A landfill material and the Class B landfill material are regenerated as the ground, and the final disposal is completed.

  According to the present embodiment, the supply of the A-type waste or the B-type waste from the A-type temporary storage 6 or the B-type temporary storage 7 to the kneading tank 5 is performed by the heavy machinery on the working space 13 through the shortest path, The kneading tank 5 is also used for the kneading of Class A waste or Class B waste and cement, etc., and the operation space 13 is used to carry in the waste with a dump truck or heavy machinery, supply, kneading, transfer of landfill material, etc. Is carried out without hindrance.

  Therefore, necessary A type landfill material or B type landfill material is used according to the landfill stage in each landfill section 3 while effectively utilizing the limited space in the final disposal site 2 for the A type landfill material and the B type landfill material. The materials can be manufactured sequentially and efficiently.

The system unit 4 is installed on one side of the arrangement formed by the type A temporary storage place 6, the kneading tank 5 and the type B temporary storage place 7, and a water tank 14 for storing water to be supplied to the kneading tank 5, The storage tank 15 is installed between the tank 5 and the A-type temporary storage place 6 or the B-type temporary storage place 7 and stores equipment cleaning water or a water-soluble or water-dispersible heavy metal fixing agent. For this reason, water or this heavy metal fixing agent can be immediately supplied to the kneading tank 5 as needed. Further, the bucket 9 and the mixer 11 of the excavator 10 located in the working space 13 can be cleaned as appropriate.

  In addition, as in the case of the landfill material manufacturing system 20 of FIG. 3, when the system units 21 and 22 are arranged in one direction so that the A-type temporary storage place 6 is also used between them, each system is provided. By using the kneading tanks 5 of the units 21 and 22 in parallel, more types of A-type landfill material or B-type landfill material can be efficiently produced while using the space in the final disposal site 2 more effectively. Can do.

  Further, when a plurality of landfill sections 3 are landfilled in parallel, the kneading tanks of the system units 21 and 22 are appropriately distributed and used for the production of the Class A landfill material or the Class B landfill material, thereby performing the landfill during each landfill. The type A landfill material or the type B landfill material required by the section 3 can be efficiently manufactured and supplied.

  In addition, the determination of the target landfill material and the used kneading tank is made in accordance with the usage status of each kneading tank and the type of the required landfill material each time. For this reason, manufacture of the Class A landfill material or the Class B landfill material for landfill in each landfill section can be efficiently performed without excess or deficiency in accordance with the progress of landfill in each landfill section.

  In addition, the A type landfill material, the B type landfill material, or the cement is supplied to each kneading tank from the A type temporary storage place 6 or the B type temporary storage place 7 or the cement silo 8 in the vicinity of each kneading tank 5. In addition, transportation of waste to the A-type temporary storage place 6 or B-type temporary storage place 7, supply of waste to each kneading tank 5, kneading in each kneading tank 5, and transfer of the obtained landfill material are The operation space 13 is used by a heavy machine or the like on the operation space 13 extending to the other side of the arrangement formed by the seed temporary storage place 6, the kneading tank 5, and the B type temporary storage place 7.

  Therefore, it is possible to efficiently manufacture the type A landfill material and the type B landfill material while effectively utilizing the limited space in the final disposal site 2.

  In addition, this invention is not limited to the above-mentioned embodiment. For example, FIG. 3 shows a landfill material manufacturing system 20 including two system units 21 and 22, but instead of this, the landfill material manufacturing system has three or more system units between adjacent system units. You may arrange in one direction so that the storage place 6 or the B type temporary storage place 7 may be shared.

  DESCRIPTION OF SYMBOLS 1,20 ... Landfill material manufacturing system, 2 ... Final disposal site, 3 ... Landfill section, 4, 21, 22 ... System unit, 5 ... Kneading tank, 6 ... Class A temporary storage place, 7 ... Type B temporary storage place, 8 ... Cement silo, 12 ... dump truck, 13 ... working space, 14 ... water tank, 15 ... storage tank.

Claims (3)

At the final disposal site of waste, necessary amount of Type A landfill material and Type B landfill material used for landfill of each landfill section set by removing the ground in parallel with landfill of each landfill section A landfill production system having a system unit for alternatively producing,
The type A landfill material is obtained by kneading a type A waste, a cement, and a required amount of water or heavy metal fixing agent having a grain size or a harmful substance concentration of a predetermined standard or less, and the type B landfill material is , Obtained by kneading the B-type waste, cement, and the necessary amount of water or heavy metal fixing agent whose grain size or harmful substance concentration exceeds the predetermined standard,
The system unit is
A kneading tank that is also used for alternative production of the type A landfill material and the type B landfill material,
A-type temporary storage place where the A-type waste is carried and temporarily stored;
B-type temporary storage place where the B-type waste is carried and temporarily stored;
A cement silo that pneumatically feeds cement to the kneading tank,
The kneading tank, the A-type temporary storage place, and the B-type temporary storage place form an array in one direction in which the kneading tank is arranged between the A-type temporary storage place and the B-type temporary storage place,
On one side of the array, the cement silo is disposed at a position corresponding to the kneading tank,
On the other side of the array, the A-type waste or the B-type waste is carried into the A-type temporary storage or the B-type temporary storage, and the kneading tank from the A-type temporary storage or the B-type temporary storage A heavy machine or dump truck operating space for transferring the Class A waste or Class B waste to the kneading tank, kneading in the kneading tank, and carrying out the Class A landfill or Class B landfill from the kneading tank Landfill material manufacturing system characterized by The system unit is
A water tank installed on the one side of the array and storing water to be supplied to the kneading tank;
It is installed between the kneading tank and the Class A temporary storage or the Class B temporary storage, and comprises a storage tank for storing equipment cleaning water or a water-soluble or water-dispersible heavy metal fixing agent. The landfill production system according to claim 1.   The landfill according to claim 1, wherein a plurality of the system units are arranged in the one direction so that the A-type temporary storage site or the B-type temporary storage site is also used between adjacent system units. Material production system.