WO2012099380A2 - Device and method of manufacturing soil cement for restoring wasted quarry - Google Patents

Abstract

The present invention relates to a device and a method for manufacturing soil cement that is used to restore, into the original shape, a region having topographical damage, such as a quarry, and to a device and a method for manufacturing soil cement that is used in a wasted quarry, wherein the device comprises: a sludge hopper having a stirrer; a screw conveyor which conveys discharged sludge from said sludge hopper; a stabilizer tank which provides stabilizers for said sludge; a solidifier silo which provides a solidifier in order to solidify a mixture in which said sludge and the stabilizers are mixed; a mixer which mixes, crushes, and stirs the mixture of said sludge mixture and the solidifier; a ferrous sulfate tank and a deodorant tank, which are neutralizers provided to neutralize and deodorize the mixture of said mixer; an air compressor which provides air to the solidifier silo in order to smoothly convey powder of said solidifier; and a deodorizer which collects and deodorizes odors created in the mixing step of said mixer. Further, the method comprises the steps of: storing a solidifier; storing sewage, waste water, and processed sludge; stirring the sludge; mixing the sludge with stabilizers; conveying the mixture of said sludge; providing air to the solidifier; conveying the solidifier; mixing the solidifier; mixing and crushing the mixture of the mixed solidifier and the sludge; providing neutralizers and a deodorizer to the mixture of the mixed solidifier and the mixed sludge; and collecting and deodorizing odors created in the mixing step of said mixture.

Description

Manufacturing apparatus and process of solidified soil for waste quarry restoration

The present invention relates to an apparatus and a process for producing a solidified soil for use in restoring a circularly damaged area such as a quarry, including a sludge hopper equipped with a stirrer, a screw conveyor for transporting sludge discharged from the sludge hopper, and Mixing and milling the sludge mixture and the mixture of solids, between a tank for providing a stabilizer to the sludge and a screw mixer for mixing, and a solidifying material for providing a solidified material for solidifying the mixture in which each sludge and stabilizer are mixed. A blender, a ferrous sulfate tank and a deodorant tank, which are neutralizers provided for neutralizing and deodorizing the mixture of the blender, and an air compressor for providing air between the solidified materials to stably discharge the powder of the solidified materials. And collecting and smelling odor generated in the process of mixing in the blender It consists of a device which consists of deodorization, storage process of solid fire, sewage and waste water, process sludge storage process, agitation process of sludge residue, process of mixing stabilizer with sludge residue, The process of conveying the mixture of the sludge (sludge), the process of providing air to the solidified material, the conveying process of the solidified material, the mixing process of the solidified material, the process of mixing and grinding the mixed solidified material and sludge mixture, The present invention relates to a process for producing a solidified soil used in a waste quarry, comprising a process of providing a neutralizing agent to a mixed solidified material and a mixed sludge mixture, and a process of collecting and deodorizing odor generated during the mixing of the mixture.

In the conventional method for manufacturing the cover material according to the patent application No. 10-2009-0001702 filed by the applicant of the present invention (manufacture method for the recovery of waste quarry) sludge is hopper in the process of transporting the sludge mixture is naturally discharged There is a problem that is attached to the, there is a problem that there is a difference in the moisture content in the mixed mixture even if mixed with the solidified material according to the moisture content, the problem that the bad smell of the sludge worsens the working environment because the sludge is discharged by using a belt And the sludge to be transported leaks and scatters out of the belt and contaminates the workplace, and because the odor generated from the sludge and the mixture of solid waste is circulated between the solid waste, the odor is discharged together during the transfer of the solid waste to damage the environment of the workplace. There was a problem.

The present invention provides a sludge hopper equipped with a stirrer, a screw conveyor for transporting the sludge discharged from the sludge hopper, a screw mixer for mixing and transporting the sludge and the stabilizer, and a tank for supplying a stabilizer to the screw mixer, and each of the sludges and Ferrous sulfate, which is a neutralizing agent provided to neutralize the mixture of the blender, between a solidified material which provides a solidified material for solidifying the mixture to be mixed, a mixer which mixes, pulverizes and mixes the mixture of the sludge mixture and the solidified material A deodorant tank provided to remove the odor and the tank, an air compressor that provides air between the solidified fire to maintain the smooth transfer of the solidified fire, and the odor generated in the mixing process of the mixer. Configure the device consisting of deodorizer,

Storage process of solidified fire, sewage / wastewater, process sludge storage process, agitation of sludge, process of mixing stabilizer to sludge, transfer of mixture of stabilizer and sludge, and providing air to solidified fire The process of transferring the solidified material, the process of mixing the solidified material, the process of mixing and grinding the mixed solidified material and the sludge mixture, the process of providing a neutralizing agent and a deodorant to the mixed solidified material and the mixed sludge mixture, and the mixture The purpose of the present invention is to provide a manufacturing apparatus and process for solidified soil used in waste quarry by collecting and deodorizing odor generated in the mixing process.

In the present invention, n pieces are installed to increase workability of a hopper containing a sludge having a water content of 70 to 80% composed of sewage and wastewater sludge and process sludge.

At the bottom of each hopper is installed a stirrer for mixing the sludge.

Stabilizer tanks are installed to prevent heavy sludge from the sludge.

In order to prevent the dispersion and odor of the mixed sludge discharged from each hopper, the screw conveyor is used to transfer.

Combustion, incineration and cement which can be mixed with sludge to lower the water content of the sludge to 50% or less. Install a furnace to store quicklime.

Install a compressor that can replenish air for smooth discharge of each solidified fire.

A mixer is installed to transfer and mix the solid waste discharged between the solid wastes using a screw conveyor.

The mixed solid material and mixed sludge are configured to be mixed and ground in a mixer.

Neutralizer and deodorant tanks are installed to provide neutralizer and deodorant in the process of mixing the mixed solid material and the mixed sludge.

It is configured to capture and deodorize odor generated in the mixing process of the mixed solid material and the mixed sludge.

The apparatus and manufacturing process of the solidified soil according to the present invention improves the workability of the hopper by the stirring operation of the hopper, thereby improving productivity, and the ejection of the sludge and the solidified material by using a screw conveyor to transfer the sludge and the solidified material As it is prevented, the working environment can be kept clean, and the use of deodorants to prevent odors and the installation of deodorizers for collecting and deodorizing odors can improve the atmosphere and improve the living environment.

1 is a manufacturing process diagram of the present invention

2 is a manufacturing process flow chart according to the present invention

The present invention is a screw conveyor for transporting the sludge hopper (12a, 12b, 12c) equipped with agitator (13a, 13b, 13c), and the sludge discharged from the sludge hopper (12a, 12b, 12c) as shown in FIG. (14a, 14b, 14c), tanks 15, 16 for providing a stabilizer and a deodorant, and a solids for providing a solidified material for solidifying a mixture in which the respective sludge, stabilizer, and neutralizer are mixed (11a, 11b). 11c), mixers 18a and 18b for mixing and pulverizing the mixture of the sludge mixture and the solidified material, and a neutralizer tank 21 for providing neutralization of the mixture mixed in the mixers 18a and 18b, Air compressor 17 for providing air between the solidified material (11a, 11b, 11c) for smooth discharge of the solidified material, sludge and solidified material and neutralizer, and deodorant tank (16) in the mixer (18a, 18b) Captures the odor generated during the mixing of the deodorant supplied from It is comprised by the deodorizer 19 which deodorizes.

The present invention, as shown in Figure 1, the process of storing the solidified materials, such as combustion materials, incineration ash, cement, quicklime, sewage, wastewater sludge and process sludge is introduced into the hopper (12a, 12b, 12c), and A process in which each sludge is agitated in the agitators 13a, 13b, and 13c formed in the 12a, 12b, and 12c, a process in which the sludge is conveyed, a process in which the conveyed sludge is mixed with a stabilizer in a screw mixer 14g, and , The process of providing air to each solidified material, the conveying process of each solidified material, the mixing process of each solidified material, the process of conveying the mixed solidified material to the mixer 18a, and the sludge in the mixer 18a Process of mixing the mixture of the solidified material with the mixture of the solidified material, providing a neutralizer and a deodorant to the mixer 18b in which the solidified material and the sludge are mixed, and collecting and deodorizing the odor generated during the mixing of the mixture. It consists of a process.

1 shows a process for producing solidified soil according to the present invention.

Figure 2 shows the system of the production process of solidified soil according to the present invention.

The present invention will be described with reference to the embodiment and the drawings.

As shown in FIG. 1, a plurality of hoppers 12a, 12b, and 12c are formed to randomly receive sewage and wastewater sludge and process sludge.

The sludge forms a water content of 70 to 80%, and agitators 13a, 13b, and 13c are installed below the hoppers 12a, 12b, and 12c to form a sludge mixture having an equivalent water content.

A stabilizer tank 15 is provided for providing a stabilizer to the screw mixer 14g into which the sludge flows.

The stabilizer can be introduced into the screw mixer (14g), it is configured so that the mixing, dispersion and transfer process can be performed at the same time.

The sludge introduced into each of the hoppers 12a, 12b, and 12c is configured to be transported by using the screw conveyors 14a, 14b, and 14c to pass through the agitators 13a, 13b, and 13c and mix again.

As described above, the sludge conveyed to each screw conveyor 14a, 14b, 14c is introduced into one screw mixer 14g and is configured to be conveyed to the mixer 18a while the stabilizer and the sludge are mixed.

As shown in FIG. 2, each solidified material is stored in a plurality of passages 11a, 11b, and 11c.

Solidified material composed of combustion material, incineration material, cement, quicklime is composed of material that can lower the water content of sludge.

In particular, quicklime is composed of hydrated lime when mixed with water, and the change of hydrated lime is effective in drastically lowering the water content of sludge because a large amount of water is required in the process.

As described above, each solidified material accommodated in each tank 11a, 11b, and 11c is transferred to one screw mixer 14h while being conveyed through the screw conveyors 14d, 14e, and 14f, so that each solidified material is mixed. have.

The mixture of solidified materials is transferred to the mixer 18a.

As described above, the sludge mixture and the solid mixture are configured to be mixed in the mixer 18a.

The sludge and solid mixture as described above are configured to lower the water content of the sludge while mixing in the mixer 18a.

Degrading the water content of the sludge as described above is different depending on the mixing ratio of the solidified material, the water content of the sludge can visually determine the water content of the sludge flowing into the hopper (12a, 12b, 12c) can be added or subtracted. .

As described above, a neutralizer tank 21 is provided to provide a neutralizing agent, ferrous sulfate, so that the sludge and the solidified material mixture may constitute neutral properties.

As described above, while the mixture of the sludge mixture and the solidifying material is mixed in the second mixer 18b, a odor gas deodorizer 19 for absorbing and removing odor gas generated during the neutralization and deodorization process is formed.

The odor-free mixture is transferred to the belt conveyor 22 is used as a solidified soil 23.

 Example-1

The present invention is an improvement of the conventional manufacturing method of the cover material according to the patent application No. 10-2009-0001702 filed by the applicant (manufacture method of the cover material for the recovery of the waste quarry, hereinafter referred to as an application).

The prior application is composed of a cover material having a constant moisture content because the water content of the sludge is low when the sludge is introduced into the hopper, and sometimes the water content of the sludge is different depending on the water content of the sludge is different depending on the water content. There was a problem to adjust the amount of solidified from time to time, there was a problem that odor caused by the chemical reaction generated when transporting and stirring the sludge, and when the sludge mixture conveyed from the hopper is transported, it is transferred to the belt conveyor Therefore, there was a problem that the working environment is poor due to the odor and sludge is separated from the belt conveyor.In addition, the odor generated when the sludge and the solidified material are mixed in the first source is transferred to the solidified fire tank and composed of cover material. There is a problem that odor occurs in the The.

Sludge is injected into the plurality of hoppers 12a, 12b, and 12c shown in FIG. 2, respectively or mixed.

The sludge introduced into the hoppers 12a, 12b, and 12c, and the mixture of each sludge have a process of storage, agitation, and mixing by stirring in the agitators 13a, 13b, and 13c during the transfer process.

Stabilizers may be injected into the screw mixer 14g which transfers the mixed sludge mixed in the plurality of hoppers 12a, 12b, and 12c while mixing again.

As described above, the sludge is mixed in each of the hoppers 12a, 12b, and 12c, and all of the mixed sludges are mixed with the stabilizer again and transferred to the mixer 18a.

As shown in Fig. 2, solidifying materials such as combustion materials, incineration ash, cement or quicklime are accommodated in the respective passages 11a, 11b and 11c, and the solidifying materials are composed of a material for lowering the water content of the sludge. Other types of solidified fires can be prepared.

The solidified material conveyed from each of the solidified materials 11a, 11b, and 11c is conveyed through the respective screw conveyors 14d, 14e, and 14f, and conveyed to the respective screw conveyors 14d, 14e, and 14f. Is transferred to one screw mixer 14h and mixed while being conveyed to the mixer 18a.

All of the solidified materials may be mixed and mixed with the mixture of sludge, or at least two or more kinds of solidified materials may be mixed with the mixture of sludge.

Such a method can be implemented by selecting the method during the implementation process.

Adjust the mixing ratio of the mixture of the sludge and the mixture of the solidified material so that the mixture of the sludge and the solidified material conveyed to the mixer (18a, 18b) as described above so that the moisture content of the mixture of the sludge is at least 50% While mixing.

When the sludge mixture and the solid mixture are mixed and discharged immediately, unmixed agglomerated solids may be generated, so that the mixture mixed in the first mixer 18a may be mixed in the second mixer 18b. The solidified soil 23, which is a mixture of the sludge and the solidified mixture, is allowed to aggregate into the soil of the small grain structure.

As described above, the sludge and the solidified work were carried out in a closed state, but after the completion of the solidified soil 23, the exposure to the atmosphere may occur because the odor may occur. Odors from the waste are collected and sent to the deodorizer.

As described above, since most of the sludge and the like is composed of a neutral material and the solidified material is alkaline, an alkaline odor is generated due to a rise in pH when the sludge and the solidified material are mixed. A neutralizing agent is provided to form a solidified clay 23 near neutrality.

[Description of the code]

11: between fires (a, b, c) 12: sludge hopper (a, b, c)

13: agitator (a, b, c) 14: screw conveyor (a, b, c, d, e, f)

14 screw mixer (g, h) 15 stabilizer tank

16 deodorant tank 17 compressor 18 blender (a, b)

19: deodorizer 21: neutralizer tank

22: belt conveyor 23: Gohwa soil

Claims (3)

A stirrer formed at the bottom of the hopper and mixing each sludge received into the hopper, a screw conveyor for conveying the mixed sludge mixture in the sludge hopper, and a stabilizer tank installed to provide the sludge mixture and the sludge and the solid mixture And, between a solidified material for providing a solidified material mixed with the mixture so as to lower the water content of the mixture in which the respective sludge and the stabilizer are mixed, a mixer for mixing the sludge mixture and the solidified material, and a mixture of the blender. A neutralizer tank and a deodorant tank accommodating the neutralizing agent and the deodorizing agent to neutralize and deodorize the air, an air compressor for providing air to the lower part between the solidified material to facilitate the discharge and transport of the solidified powder, and mixed in the mixer. Deodorizer to capture and deodor odor generated in the process Quarry waste solidified soil producing system for recovery, characterized in that. The apparatus of claim 1, wherein the sludge mixture is configured to be transferred using a screw conveyor. 2. The apparatus of claim 1, wherein a deodorizer is formed in the second mixer in order to capture and deodor odor generated in the second mixer.

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