JP3199107U - Solution preparation equipment - Google Patents

Abstract

The present invention provides a solution preparation apparatus capable of preparing a large amount of a solution containing a component eluted from a baked shell powder and not containing a baked shell powder. SOLUTION: A stirring tank 1a of a solution preparation apparatus 1 includes a tank body 10 having a water supply port 11, a stirring device for stirring the contents of the tank body 10 by rotation of a stirring blade 16, and a tank body 10. It is set as the structure provided with the shell powder supply part which supplies the baking shellfish powder whose average particle diameter is 5 micrometers-10 micrometers. Further, the filtration device 1b of the solution preparation device 1 has a basis weight of 500 g at least on the upstream side of the suspension transfer portion for transferring the suspension from the tank body 10, the porous mineral powder or the porous ceramic powder packed bed. / M2-800g / m2 It is set as the structure provided with the filtration layer 40 in which the nonwoven fabric filter is laminated | stacked, and the filtrate discharge pipe 45 which discharges the filtrate which passed the filtration layer 40. As shown in FIG. [Selection] Figure 1

Description

  The present invention provides a solution preparation device for obtaining a solution containing components eluted from a powder.

  After the edible portion is removed from the shell, the shell is subject to disposal as industrial waste, but the amount is said to exceed several hundred thousand tons per year. The present inventor has been conducting various studies on the idea that the shells that are to be discarded should be effectively used as resources, and has already developed a technology for new articles using the burned shell powder. Several proposals have been made (see Patent Documents 1 to 3).

  Among them, there is a device related to a liquid sprayer (see Patent Document 2). This is a liquid sprayer that ejects the liquid contained in the container from the nozzle through a tube whose tip is immersed in the liquid, and baked shell powder is added to the water in the container, and at the tip of the tube. A strainer is attached which allows liquid to pass but not powder. Alternatively, the fired shell powder is immersed in water in a container in a state of being contained in a bag body that allows liquid to pass but does not allow powder to pass. With these liquid sprayers, water containing components eluted from the fired shell powder can be sprayed from the nozzle.

  Here, various reports have been made that the fired shell powder exhibits a bactericidal action (for example, see Non-Patent Document 1). Calcium carbonate, which is the main component of the shell, is converted to calcium oxide by firing at a high temperature. The increase in pH due to the hydration of calcium oxide is said to be the main factor showing the bactericidal action, and it has been reported that the bactericidal action increases with the increase in pH. However, it has been reported that the bactericidal action is considerably higher than that of a sodium hydroxide solution having the same pH value, and the bactericidal action exhibited by the fired shell powder has some mechanism other than high alkalinity. It is believed that.

  Since the liquid sprayed from the liquid sprayer has a high sterilizing action, it is excellent in the action of sterilizing the environment sprayed with the liquid and suppressing the growth of bacteria. In addition, calcined shell powder has been used as a food additive as “shell calcined calcium” for a long time, and thus has an advantage that consumers can use it with a sense of security.

  The container of the above-mentioned liquid sprayer is of a size that can be held in the hand, so its capacity is not large, and it sprays a liquid excellent in sterilizing action little by little. On the other hand, there has been a request to use a large amount of liquid having excellent bactericidal action for business purposes. For example, food manufacturers, food processing factories, and farms that wash a large amount of vegetables with a large amount of water. It can also be conceived that the liquid from which the components of the fired shell are eluted is prepared by putting the fired shell powder into a large container that can store a large amount of water. However, in such preparation, the liquid may become white and cloudy with shell powder, and the shell powder may remain attached to the vegetables washed with water.

Utility Model Registration No. 3179638 Utility Model Registration No. 3172527 Utility Model Registration No. 3172526

Satoshi Sawai, Hideo Igarashi, Mikio Kikuchi, “Microbial control applying antibacterial activity of heat-treated shell powder”, Journal of Japanese Society for Food Microbiology, 2003, 20th, 1st, p. 1-7

  Therefore, in view of the above circumstances, an object of the present invention is to provide a solution preparation apparatus capable of preparing a large amount of a solution containing a component eluted from the fired shell powder and not containing the fired shell powder.

In order to solve the above problems, a solution preparation apparatus according to the present invention is:
“A tank body with a water supply port to which water is supplied,
A stirring device for stirring the contents of the tank body by rotation of a stirring blade; and
A shell powder supply unit for supplying a fired shell powder having an average particle diameter of 5 μm to 10 μm inside the tank body;
A stirring tank comprising:
A suspension transfer unit for transferring a suspension in which the fired shell powder is suspended in a solution containing a component eluted from the fired shell powder by stirring in the stirring tank, from the tank body;
At least the upstream basis weight of 500g ^/ m ² ~800g / m 2 on the side non-woven fabric filter packed bed of powder of a powder or a porous ceramic porous minerals are stacked, the which is transported by the suspension transport unit A filtration layer for filtering the suspension; and
A filtration device comprising a filtrate discharge pipe for discharging the filtrate that has passed through the filtration layer;
Is provided. "

  That is, the solution preparation device of the present invention mainly includes a “stirring tank” and a “filtration device”. Among them, the “stirring tank” includes a “tank main body”, a “stirring device”, and a “shell powder supply unit”. On the other hand, the “filtration device” includes a “suspension transfer section”, a “filtration layer”, and a “filtrate discharge pipe”. The “filtration layer” includes a nonwoven fabric filter, a porous mineral powder or a porous And a filled layer filled with a powder of ceramic material.

  The kind of shellfish used as “baked shellfish powder” is not particularly limited, and scallops, oysters, seashells, clams, clams and the like can be used. In Japan, it is said that scallops account for the largest amount of industrial waste and scallops account for more than 60% of the total, so it is desirable to use scallop shells in terms of effective use of resources. . The temperature at which the shell is “baked” can be between 1000 ° C. and 1200 ° C. When the crystal phase of the shell is identified by X-ray diffraction, the main component of the unfired shell is calcium carbonate, but when heated at 700 ° C or higher, a diffraction peak of calcium oxide is observed. It becomes a single phase of calcium oxide.

  With the above configuration, the water and the fired shell powder supplied to the inside of the tank body of the stirring tank are sufficiently stirred by the stirring blade of the stirring device, and the components of the fired shell are eluted in the water and have a high alkaline and bactericidal action. Become a solution. Here, calcium oxide which is the main component of the calcined shell powder becomes calcium hydroxide by hydration, and part of it is dissolved in water (the solubility of calcium hydroxide in water is about 0.16 at 20 ° C.). In addition, it is believed that there are components that are eluted from the fired shell powder into water.

  It is considered that the smaller the particle diameter of the fired shell powder, the greater the specific surface area, so that the components of the fired shell are more likely to elute into water. However, the smaller the particle size of the fired shell powder, the more difficult it is to separate it from the aqueous medium.

As a result of repeated studies by the present inventors, it is easy to elute the components of the baked shellfish into water by making the baked shell powder fine powder having an average particle size of 5 μm to 10 μm, and the basis weight is 500 g / m ² to. It has been found that the fired shell powder can be effectively separated from the aqueous medium by using an 800 g / m ² non-woven fabric filter and a packed layer of porous mineral powder or porous ceramic powder as a filter medium. Here, if the gap of the filter medium is too large with respect to the particle diameter of the fired shell powder, the fired shell powder will pass through the filter medium. On the other hand, if the gap of the filter medium is too small with respect to the particle diameter of the fired shell powder, the filter medium is clogged early, and the fired shell powder cannot be collected sufficiently. In addition, depending on the filter medium, components that are eluted from the fired shell powder into water are adsorbed, and there is a possibility that useful components eluted in water may be removed by the filter medium.

In contrast, in the present configuration, the suspension firing shell powder are suspended, first basis weight in the upstream side in the filtration layer is passed through a nonwoven filter ^{500g / m 2 ~800g / m 2} . Thereby, most of the fired shell powder is collected by the nonwoven fabric filter. The finer baked shell powder that has passed without being collected by the nonwoven fabric filter is collected in the open pores in the packed bed of porous mineral powder or porous ceramic powder downstream of the nonwoven fabric filter. As a result of the investigation, it was found that the components eluted in the water from the fired shell powder were hardly adsorbed in the packed layer of the porous mineral powder or the porous ceramic powder, so the solid content of the fired shell powder was mainly used. It can remove and can obtain the solution containing the component eluted from the baked shell powder. The filtration layer may be a porous mineral powder or a porous ceramic powder packed layer as long as it is provided on the nonwoven fabric filter at least upstream of the porous mineral powder or porous ceramic powder packed layer. It can be set as the structure by which a nonwoven fabric filter is further provided in the downstream.

  And since the said structure does not have the element which prevents an enlargement, it makes the tank main body large-capacity, and makes the scale of a filtration apparatus according to this, and includes the component eluted from the baking shell powder, and baking Solutions that do not contain shell powder can be prepared in large quantities.

In addition to the above-described configuration, the solution preparation apparatus according to the present invention includes:
“The shell powder supply unit supplies a predetermined amount of calcined shell powder based on the operation of the operation unit”.

  According to the above configuration, a predetermined amount of the baked shell powder is supplied by the shell powder supply unit at the time of preparing the solution once, so that the operator does not need to measure the baked shell powder and a certain amount of baking is performed. Shell powder can be supplied into the tank body. And, if a certain amount of water is supplied to the inside of the tank body at the time of preparing the solution once, the ratio of the baked shell powder to the water can always be kept constant, so the concentration, pH, etc. of the obtained solution are kept constant. Can be held. Therefore, according to the solution preparation apparatus of this configuration, it is possible to always supply a large amount of a solution having a constant quality.

  As described above, according to the present invention, it is possible to provide a solution preparation apparatus that can prepare a large amount of a solution that contains a component eluted from the fired shell powder and does not contain the fired shell powder.

It is a block diagram of the solution preparation apparatus of one Embodiment of this invention. It is a block diagram of the solution preparation apparatus of other embodiment.

  Hereinafter, the solution preparation apparatus 1 which is one embodiment of this invention is demonstrated using FIG. The solution preparation device 1 includes a stirring tank 1a and a filtration device 1b.

  The stirring tank 1a includes a tank body 10 having a water supply port 11 to which water is supplied, a stirring device for stirring the contents of the tank body 10, and a fired shell having an average particle diameter of 5 μm to 10 μm inside the tank body 10. A shell powder supply unit for supplying powder.

Further, the filtration device 1b includes a suspension transfer unit for transferring a suspension in which the fired shell powder is suspended in the solution in which the components of the fired shell are eluted by stirring in the stirring tank 1a, and a suspension transfer unit. It has the filtration layer 40 which filters the suspension transferred by the turbid liquid transfer part, and the filtrate discharge pipe 45 which discharges the filtrate which passed the filtration layer 40. The filtration layer 40 of the present embodiment includes a porous mineral powder or a porous ceramic powder filling layer 42 (hereinafter referred to as a “porous material filling layer 42”) and a basis weight of 500 g stacked in a plurality of layers upstream thereof. and / ^{m 2} ~800g / ^m 2 of the layer 41a of the nonwoven fabric filter, a basis weight which is stacked downstream of the porous material filling layer 42 and a layer 41b of non-woven filter 500g ^{/ m 2 ~800g /} m 2 Yes.

  If it demonstrates in detail, the tank main body 10 is a large sized container by which the lower end of the cylindrical side peripheral wall was coat | covered with the bottom part, and the upper end was coat | covered with the ceiling part, and a capacity | capacitance is 200 liters-300 liters. The stirrer includes a rotating shaft 15 suspended from the ceiling of the tank body 10, an agitating blade 16 that rotates integrally with the rotating shaft 15, and a motor 17 that rotationally drives the rotating shaft 15.

  The water supply port 11 of the tank body 10 is open to the side peripheral wall of the tank body 10, and is connected to the downstream end of a water supply pipe 12 that supplies water. The upstream end of the water supply pipe 12 can be connected to a water pipe for transferring tap water or well water or a tank for storing purified water.

  The shell powder supply unit includes a shell powder container 20 that stores the fired shell powder, and a shell powder supply pipe 21 that connects the shell powder container 20 and the ceiling of the tank body 10. Here, in this embodiment, a powder obtained by firing and pulverizing a scallop shell at a temperature of 1200 ° C. is used as the fired shell powder, and the particle diameter (diameter) of the fired shell powder is the most frequent by the laser diffraction method. The diameter is about 9 μm. The shell powder supply unit is configured to supply a predetermined single amount from the shell powder container 20 based on the operation of the operation lever and the operation button by the operator.

  The suspension transfer unit is located in the middle of the tank body 10 in the height direction, and the suspension transfer pipe 31 connected to the tank body 10 and the filtration layer from the tank body 10 via the suspension transfer pipe 31. And a pump 35 for driving the transfer of up to 40 suspensions. Further, a strainer 36 having an open mesh that prevents particles larger than 10 μm from passing is interposed at a connecting portion between the tank body 10 and the suspension transfer pipe 31. Without providing the pump 35, an on-off valve is provided in the middle of the suspension transfer pipe, and the on-off valve is positioned at a lower height than the connecting portion between the tank body and the suspension transfer pipe. The suspension may be transferred from the tank body to the filtration device by gravity when the is opened.

  The downstream end of the suspension transfer pipe 31 is connected to the upstream end of the filtration layer 40. The filtration layer 40 is filled in a cylindrical casing 49 extending in the vertical direction. The upper end of the casing 49 is the upstream end of the filtration layer 40, and the lower end of the casing 49 is the downstream end of the filtration layer 40. And the filtration layer 40 of this embodiment is laminated | stacked from the upstream toward the downstream, 10-15 nonwoven fabric filter layers 41a, porous material filling layer 42, 3-5 nonwoven fabric filter layers. It consists of three types of layers 41b.

Here, each of the non-woven fabric filters constituting the layers 41a and 41b of the non-woven fabric filter is a disc having a thickness of 1.5 cm to 3 cm and a diameter of 10 cm to 15 cm intertwined with resin fibers. is the basis weight is ^{500g / m 2 ~800g / m 2} . The porous material filling layer 42 includes one to five porous material filters in which a porous mineral powder or a porous ceramic powder is filled in a bag formed of a net having a smaller opening than the powder. Each porous material filter has a disk shape with a thickness of 1.5 cm to 3 cm and a diameter of 10 cm to 15 cm.

  A filtrate discharge pipe 45 through which the filtrate that has passed through the filtration layer 40 flows is connected to the lower end of the casing 49 filled with the filtration layer 40.

  With the above configuration, a solution is prepared as follows in the solution preparation apparatus of the present embodiment. First, water is supplied into the tank body 10 through the water supply pipe 12. For example, by detecting the amount of water inside the tank body 10 with a water level meter, a flow meter, etc., and stopping the supply of water through the water supply pipe 21 based on this detection, a certain amount of water is supplied during one solution preparation. The main body 10 can be supplied.

  On the other hand, a single amount of the baked shell powder having an average particle diameter of about 9 μm is supplied from the shell powder container 20 to the inside of the tank body 10 through the shell powder supply pipe 21.

  When the motor 17 is driven and the stirring blade 16 is rotated, the fired shell powder is mixed with water and stirred. In this stirring process, the components of the fired shell are eluted in water. In particular, the calcined shell powder has a fine average particle size of about 9 μm and a very large specific surface area, so that the components of the calcined shell shell are efficiently eluted into water. In addition, since the fired shell powder is very fine, most of it is suspended in water.

  When the rotation of the stirring blade 16 is stopped and the tank body 10 is allowed to stand for a while, a fired shell powder having a particle size that cannot be suspended in water is slightly precipitated. Therefore, the pump 35 is operated to transfer the suspension to the filtration device 1b through the suspension transfer pipe 31. At this time, the strainer 36 prevents the fired shell powder having a particle size that cannot be suspended in water from flowing into the suspension transfer pipe 31.

  The suspension transferred to the filtration device 1b by the suspension transfer pipe 31 first passes through the layer 41a of the nonwoven fabric filter. Thereby, most of the fired shell powder contained in the suspension is collected by the nonwoven fabric filter.

  The liquid that has passed through the nonwoven fabric filter layer 41 a passes through the porous material filling layer 42. The porous mineral or porous ceramic constituting the porous material filling layer 42 has fine open pores from the voids of the nonwoven fabric filter. Therefore, in the process of passing through the porous material filling layer 42, the fired shell powder that could not be collected by the nonwoven fabric filter is collected. However, the component eluted into the water from the fired shell powder is hardly adsorbed to the porous material filling layer 42.

  Therefore, the filtrate that has passed through the porous material filling layer 42 is a solution that contains components eluted from the fired shell powder and does not contain the fired shell powder. This solution is discharged from the filtrate discharge pipe 45 and has a high bactericidal action. Can be used as a solution.

The nonwoven fabric filter layer 41b provided downstream of the porous material-filled layer 42 is a so-called “just in case” layer, and the fired shell powder is added to the filtrate discharged from the filtrate discharge pipe 45 for some reason. This is a layer provided in preparation for the case so as not to remain. In order to suppress the use of a filter material having a high collecting action as a layer for such a “just in case”, the filter medium may remove components eluted from the fired shell powder into water. A non-woven filter is used. When the nonwoven fabric filter layer is provided both upstream and downstream of the porous material filling layer 42 as in this embodiment, the basis weight of the downstream nonwoven fabric filter is larger than the basis weight of the upstream nonwoven fabric filter. It is desirable to set the numerical range narrowly. For example, the basis weight of the nonwoven fabric in the upstream of the nonwoven filter layer 41a of the porous material filling layer 42 while a ^{500g / m 2 ~800g / m 2} , the nonwoven fabric in the downstream of the non-woven filter layer 41b of porous material filling layer 42 the basis weight may be ^{700g / m 2 ~800g / m 2} .

  As described above, according to the solution preparation apparatus 1 of the present embodiment, by using a fine fired shell powder having an average particle diameter of about 9 μm, the fired shell components can be efficiently eluted into water. And since the fine baked shell powder is suspended in water and difficult to separate from the aqueous medium, the components eluted in the water are removed by filtering the suspension with a filtration layer 40 using a specific filter medium. The solution in which only the solid content of the fired shell powder is removed from the suspension can be prepared.

  And since the solution preparation apparatus 1 of this embodiment is equipped with the stirring tank 1a which has the large sized tank main body 10, and is equipped with the filtration apparatus 1b which can be filtered at the scale corresponding to this, A large amount of the solution in which the components are eluted can be prepared.

  In addition, since it has a shell powder supply unit that supplies a single amount of calcined shellfish powder at the time of preparing a single solution, the concentration and pH of the solution does not vary with each preparation, and a constant quality is always maintained. A solution can be prepared.

  The present invention has been described with reference to a preferred embodiment. However, the present invention is not limited to this embodiment, and various improvements and modifications can be made without departing from the spirit of the present invention as described below. Design changes are possible.

  For example, as illustrated in FIG. 2, a large amount of solution can be obtained by placing the tank body 10 on a carriage 50 that is moved by a tire 51 with a stopper after the filtration apparatus 1 b is supported by the tank body 10. It is possible to provide a solution preparation apparatus 2 that can be easily moved while being an apparatus capable of preparing the liquid.

DESCRIPTION OF SYMBOLS 1, 2 Solution preparation apparatus 1a Stirring tank 1b Filtration apparatus 10 Tank main body 11 Water supply port 15 Rotating shaft (stirring apparatus)
16 Stirring blade (stirring device)
17 Motor (Agitator)
20 Shell powder container (shell powder supply unit)
21 Shell powder supply pipe (shell powder supply section)
31 Suspension transfer pipe (Suspension transfer part)
35 Pump (Suspension transfer part)
40 Filtration layers 41a, 41b Non-woven fabric filter layer 42 Porous material filling layer (porous mineral powder or porous ceramic powder filling layer)
45 Filtrate discharge pipe

Claims (2)

A tank body having a water supply port to which water is supplied,
A stirring device for stirring the contents of the tank body by rotation of a stirring blade; and
A shell powder supply unit for supplying a fired shell powder having an average particle diameter of 5 μm to 10 μm inside the tank body;
A stirring tank comprising:
A suspension transfer unit for transferring a suspension in which the fired shell powder is suspended in a solution containing a component eluted from the fired shell powder by stirring in the stirring tank, from the tank body;
At least the upstream basis weight of 500g ^/ m ² ~800g / m 2 on the side non-woven fabric filter packed bed of powder of a powder or a porous ceramic porous minerals are stacked, the which is transported by the suspension transport unit A filtration layer for filtering the suspension; and
A filtration device comprising a filtrate discharge pipe for discharging the filtrate that has passed through the filtration layer;
A solution preparation apparatus comprising: The solution preparing apparatus according to claim 1, wherein the shell powder supply unit supplies a predetermined amount of calcined shell powder based on the operation of the operation unit.

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