JP2013034957A - Apparatus and method for treating mixture - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an apparatus for treating a mixture capable of entirely miniaturizing and simplifying, and reducing the equipment cost and operating cost.SOLUTION: The apparatus for treating a mixture in which mortar drainage as the mixture of particulates and water is separated and treated includes: a heating unit 22; a spraying unit 23 for spraying the heating unit 22 with the mortar drainage; and a condensation unit 32 for condensing the water vapor generated by vaporizing the water contained in the mortar drainage sprayed from the spraying unit 23 and heated by the heating unit 22 to restore to water. By spraying the mortar drainage from the spraying unit 23 to the heating unit 22 to heat the mortar drainage with the heating unit 22, the water contained in the mortar drainage can be vaporized and by condensing this water vapor with the condensation unit 33 to restore it to water, the mortar drainage can be separated into particulates and water and treated.

Description

  The present invention relates to a processing apparatus and a processing method for a mixture, and more particularly to a processing apparatus and a processing method for a mixture suitable for processing a mixture of a granular material and a liquid.

  Mortar drainage (a mixture of cement, sand and water) generated from civil engineering and construction sites cannot be discharged directly into sewers or rivers due to environmental protection problems. For this reason, the target mortar wastewater is separated into cement and moisture by the coagulation sedimentation method or filtration removal method, and the cement content is disposed of as industrial waste. After the pH treatment using the agent, it is discharged into sewers and rivers.

  Moreover, the waste water treatment machine as described in the nonpatent literature 1 is used in the large-scale site where mortar waste water treatment is always required. The waste water treatment machine described in Non-Patent Document 1 includes a raw water tank for precipitating cement in mortar waste water, a neutralization tank for storing supernatant water separated from the cement in the raw water tank, and carbon dioxide gas in the neutralization tank. It is equipped with a carbon dioxide gas supply device that blows in, and this wastewater treatment machine is installed at the site, and the collected mortar wastewater is supplied to the raw water tank, thereby continuously treating the mortar wastewater generated from the site. be able to.

Tsurumi Manufacturing Co., Ltd. website, pH control system catalog, Internet <http: // www. tsurumipump. co. jp / products />

  By the way, in the wastewater treatment machine having the above-described configuration, since it is a large-sized and complex structure composed of a raw water tank, a neutralization tank, a carbon dioxide supply device, etc., the equipment cost is high, and it is installed. The possible locations are limited.

  Further, in addition to the cost of disposing the cement separated from the mortar wastewater as industrial waste, the cost of neutralizing the supernatant water separated from the mortar wastewater is required, so the cost of processing the mortar wastewater is high.

  For this reason, it is difficult to apply to small-scale sites such as renewal work where the amount of mortar drainage is small and the installation location is limited. In addition, it cannot be applied to an upper floor of a construction site because it cannot be carried on an elevator.

  The present invention has been made in view of the conventional problems as described above, and is a mixture processing apparatus and processing that can be applied to small-scale sites such as civil engineering and architecture, and upper floors of construction sites. It aims to provide a method.

In order to solve the above problems, the present invention employs the following means.
That is, the present invention is a processing apparatus for a mixture that separates and processes mortar wastewater as a mixture of a granule fraction and moisture, and includes heating means, spraying means for spraying the mortar wastewater on the heating means, And a condensing unit that condenses water vapor generated by evaporation of water contained in the mortar waste water that is sprayed from the spraying unit and heated by the heating unit, and returns the water to water.

  According to the processing apparatus for a mixture of the present invention, the mortar waste water is heated by the heating means by spraying the mortar waste water as a mixture of the granule content and the water, and the moisture contained in the mortar waste water is heated by the heating means. The water vapor is condensed, and the water vapor is condensed by the condensing means and returned to the water. Therefore, the separated cement is disposed as industrial waste, and the separated water becomes pure water, so there is no need to adjust the pH. It can be reused for manufacturing.

  Further, in the present invention, a casing having an interior divided into a first chamber and a second chamber is provided, the heating means and the spraying means are provided in the first chamber, and the condensing means is provided in the second chamber. It may be provided.

  According to the mixture processing apparatus of the present invention, since the heating means, the spraying means, and the condensing means can be housed and integrated in the casing, the whole can be reduced in size and simplified. Therefore, when processing mortar waste water, it can fully be applied to a small-scale site with a small processing amount. Further, the inside of the casing is divided into a first chamber and a second chamber, the mixture is heated in the first chamber to evaporate water contained in the mixture to generate water vapor, and the water vapor is cooled in the second chamber. Since the water is returned to water and heating and cooling are performed in separate chambers, the mortar drainage can be treated efficiently.

  Furthermore, in this invention, the said spraying means is good also as providing the dehydration filtration drum which sprays the said mortar waste_water | drain to the said heating means by the effect | action of a centrifugal force.

  Furthermore, in this invention, the said spraying means is good also as providing the nozzle sprayed toward the said heating means by pumping and injecting the said mortar waste_water | drain.

  Furthermore, in the present invention, the heating means may be a planar heater provided on the inner surface of the first chamber.

  According to the processing apparatus for a mixture of the present invention, by spraying mortar waste water on a planar heater as a heating means, the mortar waste water is heated by the planar heater, and water contained in the mortar waste water is evaporated. In addition, by using a planar heater, the sprayed mortar drainage can be received in a wide range, and at each position of the planar heater, a small amount of mortar drainage creates steam, and this small amount of mortar drainage is heated. Since the water contained in the mortar waste water can be evaporated, the water contained in the mortar waste water can be efficiently evaporated to generate water vapor.

  Furthermore, in the present invention, the condensing means may comprise a heat exchanger provided in the second chamber and a cooling fan that takes outside air into the second chamber.

  According to the mixture processing apparatus of the present invention, the vapor heated and evaporated by the heating means is led to the heat exchanger of the condensing means, and the outside air taken into the second chamber by the cooling fan by the heat exchanger. By exchanging heat between them, it is condensed and returned to water.

  Furthermore, the present invention is a treatment method of a mixture for separating and treating mortar wastewater as a mixture of a granule fraction and moisture, comprising heating means, spraying means for spraying the mortar wastewater on the heating means, Using the processing apparatus for the mixture, comprising: a condensing unit that condenses water vapor generated by evaporation of water contained in the mortar waste water that is sprayed from the spraying unit and heated by the heating unit, and returns the water to the water. The mortar waste water is sprayed toward the heating means from above, and the water contained in the mortar waste water is evaporated by heating the mortar waste water by the heating means, and the water vapor is condensed by the condensing means and returned to water. Thus, the mortar waste water is separated into powder and moisture and processed.

As described above, according to the processing apparatus and the processing method of the mixture of the present invention, the mortar wastewater is mixed by the heating means by spraying the mortar wastewater as the mixture of the granule fraction and the water to the heating means by the spraying means. When heated, the moisture contained in the mortar waste water is evaporated, and this vapor is condensed by the condensing means and returned to the water. Therefore, the separated particulate matter (cement, sand, etc.) is disposed as industrial waste, and the separated water becomes pure water, so there is no need to adjust the pH. Alternatively, it can be reused for the production of mortar.
In addition, since it has a simple structure consisting of spraying means, heating means, and condensing means, the whole can be miniaturized, equipment costs can be kept low, and the amount of mixture processed is small. Can also be applied sufficiently.

It is the schematic front view which showed 1st Embodiment of the processing apparatus of the mixture by this invention. It is a top view of FIG. It is explanatory drawing which showed the state which supplied the mortar waste_water | drain as a mixture to the dehydration filtration drum of the processing apparatus of the mixture of FIG. It is explanatory drawing which showed the spraying state of the water | moisture content of the mortar waste_water | drain by a dehydration filtration drum, the heating state of the water | moisture content by a planar heater, and the vapor | steam condensation state by a heat exchanger. It is explanatory drawing which showed the state which is discharging | emitting granular part from the 1st chamber and discharging water from the 2nd chamber. It is the schematic front view which showed 2nd Embodiment of the processing apparatus of the mixture by this invention.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 and 2 show a first embodiment of a mixture processing apparatus according to the present invention. The mixture processing apparatus (hereinafter referred to as processing apparatus 1) according to the present embodiment is applicable for separating and processing a mixture of powder and liquid into powder and liquid. In this embodiment, mortar drainage 40 (a mixture of cement, sand, and water) generated from a civil engineering or construction site is separated into a granular portion 41 made of cement and sand, and moisture 42 for treatment. Applicable.

  As shown in FIG. 1 and FIG. 2, the processing apparatus 1 of the present embodiment is provided in the first chamber 16 and the casing 2 whose interior is divided into two chambers, a first chamber 16 and a second chamber 19. The heating means 22 is provided in the first chamber 16, the spraying means 23 for spraying the collected mortar drain 40 toward the heating means 22, and the heating means 22 provided in the second chamber 19 and heated by the heating means 22. Condensing means 32 for collecting and condensing the evaporated water vapor.

The casing 2 has a box shape composed of four side plates 3 to 6, a bottom plate 8, and an upper plate 7, and the inside of the casing 2 is a first chamber 16 and a second chamber 19 by a partition plate 9. It is divided into.
In the upper part (upper plate 7) of the casing 2, an input port 12 for supplying mortar drainage 40 into the first chamber 16 is provided, and the input port 12 is configured to be opened and closed by an opening / closing lid 13. The side portion (side plate 5) of the casing 2 is provided with a discharge port 14 for discharging the granular portion 41 from the first chamber 16, and the discharge port 14 is configured to be opened and closed by an opening / closing lid 15. The inside of the first chamber 16 of the casing 2 is divided into two chambers, an upper chamber 17 and a lower chamber 18, by the partition plate 11, heating means 22 is provided in the upper chamber 17, and will be described later in the upper chamber 17 and the lower chamber 18. A spraying means 23 is provided.

  The upper portion (upper plate 7) of the casing 2 is provided with an outside air port 20 for taking outside air into the second chamber 19, and the outside air port 20 is provided with a cooling fan 36 of the condensing means 32 described later. By the operation of the fan 36, outside air is taken into the second chamber 19 through the outside air port 20. In the upper part of the partition plate 9 of the casing 2, a plurality of inflow ports 10 that communicate with each other between the first chamber 16 and the second chamber 19 are provided. The water vapor is guided to a heat exchanger 33 (described later) installed in the second chamber 19. A drain port 21 for discharging water from the second chamber 19 is provided on the side portion (side plate 6) of the casing 2, and the drain port 21 is connected to a sewer or the like via a hose or the like.

  The heating means 22 is, for example, a planar heater 22 such as an IH heater. In the present embodiment, a plurality of planar sheets are provided so as to cover the entire inner surface (inner surface and bottom surface) of the first chamber 16. A heater 22 is provided on the inner surface of the first chamber 16. By spraying the mortar drainage 40 from the spraying means 23 to be described later onto the planar heater 22, the mortar drainage 40 is heated and the moisture 42 contained in the mortar drainage 40 evaporates.

  The heating means 22 is not limited to the planar heater 22 and may be any means that can efficiently heat and evaporate the moisture 42 contained in the mortar drainage 40. Further, the planar heater 22 may be configured to be provided only at least in a portion that receives the mortar drainage 40 sprayed from the spraying means 23.

  The spraying means 23 is provided, for example, in a dehydration filtration drum 24 rotatably provided in the central portion of the upper chamber 17 of the first chamber 16 and a lower chamber 18 of the first chamber 16, and the dehydration filtration drum 24 It comprises a drive source 25 that is driven to rotate.

  For example, the dewatering filtration drum 24 has three cylindrical first filter members 26, second filter members 27, and third filter members 28, each having a side surface and a bottom surface formed by a filter, spaced in this order from the inside. The mortar drainage 40 is put into the innermost first filter member 26 inside the first filter member 26.

  In the present embodiment, the filter mesh of each of the filter members 27 to 28 is such that the filter mesh becomes smaller in the order of the first filter member 26, the second filter member 27, and the third filter 28. Is set. Thereby, the mortar drainage 40 thrown into the inside of the first filter member 27 is sequentially filtered by the filter of the first filter member 26, the filter of the second filter member 27, and the filter of the third filter member 28, and the third Moisture 42 separated from the mortar waste water 40 that has passed through the filter of the filter member 28 is sprayed onto the surface of the planar heater 22 by centrifugal force.

  In the present embodiment, for example, the filter mesh of the first filter member 26 is 1.0 mm, the filter mesh of the second filter member 27 is 100 μm, and the filter of the third filter member 28 is used. The roughness of the eyes is 25 μm.

  In addition, what is necessary is just to set the roughness of the filter of each filter member 26-28 according to the particle size of the mortar part 41 contained not only in said size but the mortar waste water 40 made into object. Further, the dewatering filtration drum 24 is not limited to three layers, and may be one layer, two layers, or four layers or more.

  The condensing unit 32 includes a heat exchanger 33 provided in the second chamber 19 and a cooling fan 36 provided in the outside air port 20 of the second chamber 19. The heat exchanger 33 is connected to each inlet 10 of the partition plate 9, and is attached to the condensing pipe 34 and a condensing pipe 34 that is bent into a desired shape so as to reach almost the entire second chamber 19. And a plurality of cooling fins 35.

  The steam in the first chamber 16 flows into the condensation pipe 34 of the heat exchanger 33 through each inlet 10, and is taken into the second chamber 19 by the cooling fan 35 when flowing in the condensation pipe 34. The heat is exchanged with the outside air to be condensed and returned to water, and stored in the second chamber 19.

  In order to treat the mortar drainage 40 using the treatment apparatus 1 of the present embodiment configured as described above, first, as shown in FIG. The collected mortar waste water 40 is introduced into the inside of the first filter member 26 of the dewatering filtration drum 24 in the first chamber 16 from the inlet 12, and the inlet 12 is closed with the opening / closing lid 13.

  Next, as shown in FIG. 4, the driving source 25 is operated to rotate the dehydration filtration drum 24, thereby causing centrifugal force to act on the mortar drainage 40 thrown inside the first filter member 26, and The mortar waste water 40 is separated into the particulate matter 41 and the moisture 42 by sequentially filtering through the filter of the first filter member 26, the filter of the second filter member 27, and the filter of the third filter member 28.

  Here, the particulate matter 41 separated from the mortar waste water 40 is collected inside the first filter member 26, inside the second filter member 27, and inside the third filter member 28, and each filter member 26. The granular part 41 that has passed through the lower filter of ˜28 is collected at the bottom of the first chamber 16.

  Further, the moisture 42 separated from the mortar drainage 40 that has passed through the filter of the first filter member 26, the filter of the second filter member 27, and the filter of the third filter member 28 is removed from the side filter of the third filter member 28. To the surface of the planar heater 22.

  The moisture 42 sprayed on the planar heater 22 evaporates and becomes water vapor when heated by the planar heater 22, and the water vapor rises in the first chamber 16 and passes through each inlet 10 to the second chamber 19. When the refrigerant flows into the condenser tube 34 of the heat exchanger 33 and flows through the condenser tube 34, it is condensed by heat exchange with the outside air taken into the second chamber 19 by the cooling fan 35, To be stored in the second chamber 19.

  Then, as shown in FIG. 5, the water stored in the second chamber 19 is discharged from the second chamber 19 to a sewer or a river through a drain port 21 or is reused as pure water for the production of mortar. Use.

  In the processing apparatus 1 of the present embodiment configured as described above, the spraying means 23 (dehydration filtration drum 24), the heating means 22 (planar heater 22), and the condensing means 32 (heat exchanger 33). Are integrated and housed in one casing 2, so that the whole can be reduced in size.

  Therefore, the present invention can be sufficiently applied even in a small site where the installation space is limited. Moreover, since it can carry in to an upper floor using an elevator also when using it for the process of the mortar waste_water | drain 40 in the upper floor etc. of a construction site, it can respond also to such an on-site.

  The dewatering filtration drum 24 of the spraying means 23 is a combination of cylindrical filter members 26 to 28 in three layers, and the planar heater 22 of the heating means 22 is an IH heater or the like. In addition, since the condensing means 32 is a combination of the heat exchanger 33 and the cooling fan 36, the overall structure can be simplified and the equipment cost can be kept low.

  Furthermore, the mortar waste water 40 is separated into a granular portion 41 and moisture 42, and the granular portion 41 is disposed as industrial waste. The moisture 42 is once evaporated and then returned to water, so the pH of the water needs to be adjusted. Therefore, it can be discharged as pure water into a sewer or the like, or can be reused for the production of mortar and the like, and the cost required for pH adjustment can be reduced.

  Furthermore, the water 42 separated from the mortar waste water 40 is sprayed on the planar heater 22 as the heating means 22 to evaporate it into water vapor, and this water vapor is condensed and returned to water, so that it is necessary for the treatment of the water 42. Time can be shortened and the separation process of the mortar waste_water | drain 40 can be performed efficiently.

  Furthermore, by using the planar heater 22, the sprayed mortar drainage 40 can be received in a wide range, and the drainage mortar 40 that generates steam at each position of the heater 22 becomes a small amount. Since the water 42 contained in the mortar waste water 40 may be evaporated by heating, the water 42 contained in the mortar waste water 40 can be efficiently evaporated to generate water vapor.

  Furthermore, the inside of the casing 2 is partitioned into a first chamber 16 and a second chamber 19, and the mortar drain 40 is heated in the first chamber 16 to evaporate the moisture 42 contained in the mortar drain 40 to generate water vapor. Since the water vapor is heated in the second chamber 19 and returned to water, and the heating and cooling are performed in separate chambers, the treatment of the mortar waste water 40 can be performed efficiently.

  FIG. 6 shows a second embodiment of the mixture processing apparatus according to the present invention. The mixture processing apparatus 1 according to the present embodiment includes a spraying means 23, a nozzle 29 having a plurality of injection holes for spraying the mortar drainage 40 onto the planar heater 22, and a pressure feed pump 31 for pumping the mortar drainage 40 to the nozzle 29. The pump 30 is configured by a pipe 30 that connects the pressure feed pump 31 and the nozzle 29, and the other configurations are the same as those shown in the embodiment.

  In the present embodiment, the pressure feed pump 31 is operated to supply the mortar drainage 40 to the nozzle 29 via the pipe 30, and this mortar drainage 40 is directed from the nozzle 29 to the surface of the planar heater 22. By spraying in the form of a mist, the mortar waste water 40 is heated by the planar heater 22, and the water 42 contained in the mortar waste water 40 evaporates to become water vapor, which is led to the heat exchanger 33 in the second chamber 19. .

  Here, the nozzle 29 is not limited as long as the mortar waste water 40 can be sprayed in the form of a mist, and for example, a spiral nozzle (manufactured by Kyoritsu Alloy Co., Ltd.) can be used. Moreover, after filtering the mortar waste_water | drain 40 with a filter, you may supply to the nozzle 29 and a nozzle with a filter may be used.

  And even if it exists in the processing apparatus of the mixture of this Embodiment, there exists an effect similar to what is shown in the said 1st Embodiment.

  In addition, you may apply to the process of the mortar waste_water | drain 40 in a large-scale site | surface by installing two or more processing apparatuses 1 of said each embodiment.

  Moreover, in each said embodiment, although the processing apparatus 1 of the mixture by this invention was applied when isolate | separating and processing the mortar waste_water | drain 40 into the granular part 41 and the water | moisture content 42, The present invention may be applied to a case where a mixture with a liquid is subjected to separation treatment, and in this case, the same effect is obtained.

DESCRIPTION OF SYMBOLS 1 Processing apparatus 2 Casing 3 Side plate 4 Side plate 5 Side plate 6 Side plate 7 Top plate 8 Bottom plate 9 Partition plate 10 Inlet 11 Partition plate 12 Input port 13 Opening lid 14 Outlet 15 Opening lid 16 First chamber 17 Upper chamber 18 Lower chamber 19 Second chamber 20 Outside air port 21 Drain port 22 Heating means (planar heater)
DESCRIPTION OF SYMBOLS 23 Spraying means 24 Dehydration filtration drum 25 Drive source 26 1st filter member 27 2nd filter member 28 3rd filter member 29 Nozzle 30 Piping 31 Condensing means 32 Condensing means 33 Heat exchanger 34 Condensation pipe 35 Cooling fin 36 Cooling fan 40 Mortar Wastewater 41 Granular content 42 Moisture

Claims (7)

A processing apparatus for a mixture that separates and treats mortar wastewater as a mixture of granule content and moisture,
Heating means, spraying means for spraying the mortar drainage on the heating means, and water vapor generated by evaporation of moisture contained in the mortar drainage sprayed from the spraying means and heated by the heating means And a condensing means for returning to water.   The apparatus for treating a mixture according to claim 1, wherein the heating means is a planar heater.   An interior is provided with a casing partitioned into two chambers, a first chamber and a second chamber, the heating means and the spraying means are provided in the first chamber, and the condensing means is provided in the second chamber. The processing apparatus of the mixture of Claim 1 or 2 characterized by the above-mentioned.   The said spraying means is equipped with the dehydration filtration drum which sprays the said mortar waste_water | drain to the said heating means by the effect | action of a centrifugal force, The processing apparatus of the mixture of any one of Claims 1-3 characterized by the above-mentioned.   The processing apparatus for a mixture according to any one of claims 1 to 3, wherein the spraying unit includes a nozzle that sprays the mixture toward the heating unit by pumping and spraying the mixture. .   The mixture according to any one of claims 3 to 5, wherein the condensing means includes a heat exchanger provided in the second chamber and a cooling fan for taking outside air into the second chamber. Processing equipment. A method for treating a mixture by separating and treating mortar waste water as a mixture of a granule content and moisture,
Heating means, spraying means for spraying the mortar drainage on the heating means, and water vapor generated by evaporation of moisture contained in the mortar drainage sprayed from the spraying means and heated by the heating means Using a treatment device for the mixture comprising a condensing means for returning to water,
The mortar waste water is sprayed from the spraying means toward the heating means, the water contained in the mortar waste water is evaporated by heating the mortar waste water by the heating means, and the water vapor is condensed by the condensation means. The processing method of the mixture characterized by isolate | separating and processing the said mortar waste_water | drain into a granule part and a water | moisture content by returning to (2).

Images