Fluidizing apparatus for materials and dust-containing gas treatment apparatus

Abstract

To provide a dust-containing gas processing device that can smoothly perform processing on a high-concentration dust-containing gas, can have a simple device configuration, is easy to balance a gas flow rate and a dust removal ability, and is used by being independently installed.SOLUTION: Gas is introduced from a gas introduction unit 7 to a processing chamber 1 by an action of only a gas flow generated due to rotation of a collection body 2 including a rotation brush, and the gas is emitted from the processing chamber 1 through a gas emission unit 8.SELECTED DRAWING: Figure 1

Description

Technical Field

[0005] ,

[0001] The present invention relates to a fluidization device for a substance and a dust-containing gas treatment device for removing dust from a dust-containing gas equipped with this fluidization device for a substance.

Background Art

[0002] Conventionally, various dry and wet devices have been proposed as dust-containing gas treatment devices for removing dust from a dust-containing gas (see, for example, Patent Documents 1 and 2).

[0003] By the way, many conventional dust-containing gas treatment devices are intended to treat relatively low-concentration dust-containing gases such as exhaust gas discharged from semiconductor manufacturing devices, and when applied to the treatment of high-concentration dust-containing gases, there is a problem that the treatment cannot be carried out smoothly.

[0004] In order to address this problem, the applicant of the present application previously proposed a dust-containing gas treatment device capable of smoothly treating a high-concentration dust-containing gas (see Patent Document 3).

[0005] As shown in FIG. 5, this dust-containing gas treatment device includes a cylindrical treatment chamber 1 for introducing a dust-containing gas and removing dust from this gas, a collector 2 disposed in the treatment chamber 1 and consisting of a brush in which hairs 22 are implanted on a support 21 for collecting dust contained in the gas, a liquid spraying mechanism 3 disposed in the treatment chamber 1, a liquid storage portion 5 provided with a stirrer 4 formed at the lower part of the treatment chamber 1, a rotational drive mechanism 6 for rotating the collector 2 and the stirrer 4, a gas introduction portion 7 for introducing the dust-containing gas into the treatment chamber 1, a gas discharge portion 8 for discharging the gas from which dust has been removed from the treatment chamber 1, and a liquid discharge portion 9 for discharging the liquid containing the dust removed from the gas. Furthermore, in this dust-containing gas treatment device, the gas discharged from the gas discharge section 8 can be discharged in a dry state by shaking off the liquid with a collector 2 consisting of a brush made of hydrophobic (water-repellent) material at a position Z2 above the position where the nozzle 31 of the liquid spraying mechanism 3 is located, and the dust can be entangled with dust by a collector 2 consisting of a brush made of hydrophilic material at a position Z1 below the position where the nozzle 31 of the liquid spraying mechanism 3 is located, thereby improving the dust removal efficiency. [Prior art documents] [Patent Documents]

[0006] [Patent Document 1] Japanese Patent Publication No. 2000-140546 [Patent Document 2] Japanese Utility Model Publication No. 4-65114 [Patent Document 3] Patent No. 6739085 [Overview of the project] [Problems that the invention aims to solve]

[0007] By the way, the dust-containing gas treatment device described in Patent Document 3 is primarily intended to be installed and used in the middle of a duct through which gas flows. If this dust-containing gas treatment device is to be installed and used independently, a separate fan is required to circulate the gas. Furthermore, whether the fan's power is shared with the rotary drive mechanism 6 that rotates the collector 2 (and agitator 4), or whether a separate drive mechanism is provided, the device configuration becomes complex, and there is a problem in balancing the gas flow rate (processing capacity) with the virus removal capacity.

[0008] In view of the problems of the conventional dust-containing gas treatment apparatus described above, the present invention aims to provide a fluidizing device for a substance that can be installed and used independently, while enjoying the advantage of the dust-containing gas treatment apparatus described in Patent Document 3, which is that it can smoothly treat high concentrations of dust-containing gases, and while simplifying the apparatus configuration and making it easier to balance the gas flow rate and dust removal capacity. The present invention also aims to provide a dust-containing gas treatment apparatus equipped with this fluidizing device for a substance. [Means for solving the problem]

[0009] To achieve the above objective, the fluidizing apparatus for substances of the present invention comprises a cylindrical processing chamber, a rotating brush disposed within the processing chamber, a rotational drive mechanism for rotating the rotating brush, a substance introduction section for introducing substances into the processing chamber, and a substance discharge section for discharging substances from the processing chamber, characterized in that substances are introduced into the processing chamber from the substance introduction section and discharged from the processing chamber through the substance discharge section solely by the action of the air pressure generated by the rotation of the rotating brush.

[0010] Furthermore, the present invention relates to a dust-containing gas processing apparatus that removes dust from a gas equipped with a fluidizing device for the above-mentioned substance, comprising: a cylindrical processing chamber for introducing a gas containing dust and removing dust from the gas; a collecting body consisting of a rotating brush disposed in the processing chamber for collecting dust contained in the gas; a liquid spraying mechanism disposed in the processing chamber; a storage section for the liquid that has flowed down through the processing chamber; a rotational drive mechanism for rotating the collecting body; a gas introduction section for introducing a gas containing dust into the processing chamber; and a gas discharge section for discharging the gas from which dust has been removed from the processing chamber, wherein the gas is introduced into the processing chamber from the gas introduction section and discharged from the processing chamber through the gas discharge section solely by the action of the airflow generated by the rotation of the collecting body consisting of the rotating brush. Therefore, more specifically, the following configuration can be adopted. (1) An airflow guide plate is formed in the processing chamber to create a pressure difference due to the airflow generated by the rotation of a collecting body consisting of a rotating brush. (2) An opening on the processing chamber side of the gas introduction section is formed in the center of the processing chamber, and an opening on the processing chamber side of the gas discharge section is formed on the outer periphery of the processing chamber. (3) In the processing chamber, an opening on the processing chamber side of the gas inlet is formed in a direction in which the dynamic pressure of the airflow generated by the rotation of the collecting body consisting of a rotating brush does not act, and an opening on the processing chamber side of the gas outlet is formed in a direction in which the dynamic pressure of the airflow acts. (4) The gas discharge section is formed in an elbow shape so that the gas is discharged upward from the processing chamber through the gas discharge section.

[0011] In this case, the liquid collected in the liquid storage section can be circulated to the liquid dispensing mechanism.

[0012] Furthermore, a pump for a liquid dispensing mechanism can be installed in the liquid storage section, and the pump can be connected to a support for the collecting body and driven by a rotary drive mechanism that rotates the collecting body. [Effects of the Invention]

[0013] According to the fluidizing apparatus of the present invention, by introducing a substance from a substance introduction section into a processing chamber and discharging the substance from the processing chamber through a substance discharge section solely by the action of air pressure generated by the rotation of a rotating brush, the apparatus configuration can be simplified and the fluidization of the substance can be easily controlled as a fluidizing apparatus that can be installed and used independently.

[0014] Furthermore, the dust-containing gas processing apparatus of the present invention includes a cylindrical processing chamber for introducing a gas containing dust and removing dust from the gas, and a processing chamber arranged within the processing chamber for processing the dust contained in the gas. The system comprises a collecting body consisting of a rotating brush for collecting dust, a liquid spraying mechanism installed in the processing chamber, a storage section for the liquid that has flowed down through the processing chamber, a rotational drive mechanism for rotating the collecting body, a gas introduction section for introducing dust-containing gas into the processing chamber, and a gas discharge section for discharging the gas from which dust has been removed from the processing chamber. By washing away the dust collected by the collecting body with the liquid sprayed from the spraying mechanism and recovering it in the storage section for the liquid that has flowed down through the processing chamber, high-concentration dust-containing gas can be processed smoothly in a low-load environment with minimal pressure loss, without using large amounts of liquid, and without maintenance. Furthermore, in addition to removing dust contained in the gas, the liquid sprayed from the spraying mechanism can simultaneously neutralize harmful gases contained in the gas. Furthermore, by using only the airflow generated by the rotation of a collecting element consisting of a rotating brush to introduce gas from the gas inlet to the processing chamber and discharge the gas from the processing chamber through the gas discharge section, the device configuration can be simplified for use as a dust-containing gas treatment device that can be installed and used independently, and it is also easier to balance the gas flow rate with the dust removal capacity.

[0015] Furthermore, by circulating the liquid collected in the liquid storage section back to the liquid dispensing mechanism, the amount of liquid used and the amount of wastewater discharged can be reduced.

[0016] Furthermore, by installing a pump for the liquid dispensing mechanism in the liquid storage section, connecting the pump to the support for the collecting body, and driving it with a rotary drive mechanism that rotates the collecting body, the drive mechanism for the pump of the liquid dispensing mechanism can be simplified. [Brief explanation of the drawing]

[0017] [Figure 1] This diagram illustrates a first embodiment of the dust-containing gas treatment apparatus of the present invention, where (a) is an overall front view, (b) is a cross-sectional view of (a) at XX, and (c) is a cross-sectional view of (a) at YY. [Figure 2]Explanatory drawing showing a second embodiment of the dust-containing gas treatment apparatus of the present invention. (a) is an overall front view, (b) is a cross-sectional view taken along the line X-X of (a), and (c) is a cross-sectional view taken along the line Y-Y of (a). [Figure 3] Explanatory drawing showing a third embodiment of the dust-containing gas treatment apparatus of the present invention. (a) is an overall front view, (b) is a cross-sectional view taken along the line C-C of (a), (c) is a cross-sectional view taken along the line D-D of (a), (d) is a view taken in the direction of arrow A-A of (a), (e) is a cross-sectional view taken along the line B-B of (a), (f) is a cross-sectional view taken along the line E-E of (a), (g) is a view taken in the direction of arrow F of (f), and (h) is a view taken in the direction of arrow G of (g). [Figure 4] Overall front view showing a fourth embodiment of the dust-containing gas treatment apparatus of the present invention. [Figure 5] Explanatory drawing showing an example of a conventional dust-containing gas treatment apparatus.

Mode for Carrying Out the Invention

[0018] Hereinafter, embodiments of the material fluidization apparatus and the dust-containing gas treatment apparatus of the present invention will be described based on the drawings.

[0019] FIG. 1 shows a first embodiment of a dust-containing gas treatment apparatus for removing dust from a gas equipped with the material fluidization apparatus of the present invention. This dust-containing gas treatment apparatus is for removing dust from a gas containing dust. It introduces a gas containing dust and removes dust from this gas. It includes a cylindrical, preferably circular, treatment chamber 1, a collector 2 composed of a rotating brush disposed in the treatment chamber 1 for collecting the dust contained in the gas, a liquid spraying mechanism 3 disposed in the treatment chamber 1, a liquid storage part 5 formed at the lower part of the treatment chamber 1, a rotation drive mechanism 6 for rotating the collector 2, a gas introduction part 7 for introducing the gas containing dust into the treatment chamber 1, a gas discharge part 8 for discharging the gas from which dust has been removed from the treatment chamber 1, and a liquid discharge part 9 for discharging the liquid containing the dust removed from the gas.

[0020] The rotating brush constituting the collector 2 is composed of a brush in which hairs 22 are implanted on a support 21, and the hairs This includes brushes in which the bristles 22 are implanted in localized areas of the support 21, and brushes in which the bristles 22 are implanted in a dispersed manner over almost the entire surface of the support 21. Brushes in which the bristles 22 are concentrated and implanted in a localized area of ​​the support 21 include spiral brushes (in this embodiment), disc brushes, and the like.

[0021] It is preferable that the rotating brush constituting the collecting body 2 has bristles 22 implanted on the support 21 so that the tips of the bristles contact the inner surface of the cylindrical processing chamber 1. This allows the rotating brushes that make up the collecting body 2 to keep the inner surface of the processing chamber 1 clean at all times.

[0022] The material of the support 21 and bristles 22 of the rotating brush is not particularly limited, but the processing temperature can be taken into consideration. For example, if the processing temperature is relatively low, such as room temperature or around 100-something degrees Celsius, various synthetic resins with relatively low heat resistance, such as polyethylene terephthalate resin or polyamide resin, or conductive synthetic resins obtained by blending these synthetic resins with powders of good electrical conductors such as metals can be used. If the processing temperature is higher than this, synthetic resins with high heat resistance, highly heat-resistant conductive synthetic resins obtained by blending these highly heat-resistant synthetic resins with powders of good electrical conductors such as metals, or metal can be used. When increasing the processing temperature, selecting materials with particularly high thermal conductivity, such as metals like copper, aluminum, iron, and stainless steel, or ceramic wool, or fibers formed from a mixture of metal and ceramic, allows the heat in the processing chamber to be efficiently absorbed by the collecting material. Furthermore, if a heating means is provided to heat the collecting material, the heat generated by the heating means can be efficiently conducted to the surface of the collecting material. This allows for a rapid rise in processing capacity when the device is started up, and also enables active chemical processing on the surface of the collecting material, making it easy and efficient to collect solid matter generated by the chemical processing into the collecting material.

[0023] The liquid dispensing mechanism 3 installed in the processing chamber 1 is configured such that the nozzle 31 of the liquid dispensing mechanism 3 is positioned in the middle of the processing chamber 1 so that the liquid can be uniformly dispensed within the processing chamber 1. Furthermore, it is preferable that the bristles of the collecting body 2 located above the nozzle 31 are made of a hydrophobic (water-repellent) material such as polyolefin resin such as polypropylene resin, synthetic resin such as polyethylene terephthalate resin, or metal, while the bristles of the collecting body 2 located below are made of a hydrophilic material such as polyamide resin nylon, polyvinyl chloride resin, or polyvinylidene chloride resin. As a result, the gas discharged from the gas discharge section 8 can be discharged in a dry state by using a collector 2, whose bristles are made of a hydrophobic (water-repellent) material, to shake off the liquid at a position above the position where the nozzle 31 of the liquid spraying mechanism 3 is located. At the same time, the dust removal efficiency can be improved by using a collector 2, whose bristles are made of a hydrophilic material, to trap dust at a position below the position where the nozzle 31 of the liquid spraying mechanism 3 is located.

[0024] The liquid sprayed from the liquid spraying mechanism 3 can be water, or a liquid appropriate to the properties of the dust-containing gas to be treated and the chemical treatment performed in the treatment chamber 1, specifically oxidation, reduction, decomposition, neutralization, etc.

[0025] The liquid storage section 5, formed at the bottom of the processing chamber 1, collects and stores the liquid containing dust collected by the collecting body 2 and washed away by the liquid sprayed from the spraying mechanism 3, and sequentially discharges it through the liquid discharge section 9. Here, depending on the properties of the dust-containing gas to be processed and the processing content, a stirring device (not shown) may be provided to stir the dust-containing liquid stored in the storage section 5 and homogenize its concentration.

[0026] The liquid storage section 5 can be integrally formed at the bottom of the processing chamber 1, or it can be detachably installed in the processing chamber 1 for maintenance or handling large amounts of dust.

[0027] The rotational drive mechanism 6, which rotates the collecting body 2 (and the agitator), is intended to enhance the dust collection effect of the collecting body 2 and the effect of the agitator in homogenizing the concentration of the liquid containing dust stored in the liquid storage section 5, by rotating the collecting body 2 (and the agitator). Furthermore, the rotating shaft of the collecting body 2 (the support 21 of the rotating brush) is equipped with bearings at both ends to enable high-speed rotation operation of, for example, 1000 rpm or more, but it is also possible to equip the bearing only at the upper end. Here, the rotational speed of the rotating shaft of the collecting body 2 is set to approximately 100 to 3600 rpm, preferably 300 to 2400 rpm, and more preferably 600 to 1800 rpm, taking into consideration the dust collection effect of the collecting body 2, energy consumption, etc.

[0028] Furthermore, by circulating the liquid collected in the liquid storage section 5 to the liquid dispensing mechanism 3 via the liquid discharge section 9, the amount of liquid used and the amount of wastewater discharged can be reduced. In this case, a filter may be installed in the liquid circulation path as needed. Specifically, in a dust-containing gas treatment apparatus equipped with a treatment chamber 1 with a diameter of 200 mm, the liquid spraying mechanism 3 typically sprays several liters to several hundred liters per minute, preferably several tens of liters per minute. By circulating the liquid in this way, the amount of liquid used and the amount of wastewater discharged can be reduced to less than 1 / 10 of the amount of liquid sprayed.

[0029] Incidentally, this dust-containing gas treatment device can be installed and used independently. Therefore, it is designed so that gas is introduced from the gas introduction section 7 into the treatment chamber 1 and discharged from the treatment chamber 1 via the gas discharge section 8, solely by the airflow generated by the rotation of the collector 2, which consists of a rotating brush.

[0030] Therefore, at the openings formed on the outer periphery of the processing chamber 1, which forms the gas introduction section 7 and the gas discharge section 8, airflow guide plates 11 and 12 are formed so as to create a pressure difference due to the airflow generated by the rotation of the collecting body 2, which consists of a rotating brush, so that gas is introduced into the processing chamber 1 from the gas introduction section 7 and discharged from the processing chamber 1 through the gas discharge section 8.

[0031] In this case, the collecting body 2, which consists of a rotating brush, can be a spiral brush (as in this embodiment), a disc brush, a brush in which bristles 22 are dispersed and planted over almost the entire surface of the support 21, etc. In the case of a spiral brush, the flow rate (processing amount) of the gas can be increased by matching the direction of gas flow in the processing chamber 1 (from bottom to top) with the direction of feeding the spiral brush, depending on the rotation direction of the collecting body 2 consisting of the rotating brush.

[0032] Here, instead of the airflow guide plate 11, as shown in the second embodiment in Figure 2, the opening of the gas introduction section 7 on the processing chamber 1 side is formed in the center of the processing chamber 1 where the pressure is low due to the airflow generated by the rotation of the collector 2 consisting of a rotating brush, and the opening of the gas discharge section 8 on the processing chamber 1 side is formed on the outer periphery of the processing chamber 1 where the pressure is high. Alternatively, as shown in the third embodiment in Figure 3, the processing of the gas introduction section 7 is directed in a direction where the dynamic pressure of the airflow (arrow in Figure 3(h)) generated by the rotation of the collector (not shown) consisting of a rotating brush does not act. By forming an opening on the chamber 1 side and also forming an opening on the processing chamber 1 side of the gas discharge section 8 in the direction in which the dynamic pressure of the airflow acts, or by replacing the airflow guide plate 12 with the opening on the processing chamber 1 side of the gas discharge section 8 in the direction in which the dynamic pressure of the airflow (arrow in Figure 3(d)) generated by the rotation of a collector (not shown) consisting of a rotating brush acts, as shown in the third embodiment in Figure 3, it is also possible to introduce gas from the gas introduction section 7 into the processing chamber 1 and discharge gas from the processing chamber 1 via the gas discharge section 8. Furthermore, the gas discharge section 8 is formed in an elbow shape, as shown in the third embodiment in Figure 3. The gas can be discharged upward from the processing chamber 1 via the gas discharge section 8.

[0033] Furthermore, in the above embodiment, the pump of the liquid spraying mechanism 3 was installed outside the liquid storage section 5. However, as shown in the fourth embodiment in Figure 4, the pump 32 of the liquid spraying mechanism 3 can be installed in the liquid storage section 5, and this pump 32 can be connected to the support 21 of the collecting body 2 and driven by a rotary drive mechanism 6 that rotates the collecting body 2. In this case, the pump 32 can be directly connected to the support 21 of the collector 2, or it can be connected via a reduction gear mechanism. This allows for a simplification of the drive mechanism of the pump 32 in the liquid dispensing mechanism 3.

[0034] This dust-containing gas treatment device washes off the dust collected by the collector 2 with liquid sprayed from the spraying mechanism 3 and collects it in a liquid storage section 5 formed at the bottom of the treatment chamber 1. This allows for the smooth, maintenance-free treatment of high-concentration dust-containing gases in a low-load environment with minimal pressure loss, without the need for large amounts of liquid. Furthermore, in addition to removing dust contained in the gas, the liquid sprayed from the spraying mechanism 3 can simultaneously neutralize harmful gases contained in the gas. Furthermore, the device can be configured to operate solely by the driving force of the rotary drive mechanism 6 that rotates the collection body 2 (and the agitator which may be provided as needed), simplifying the device configuration and making it easier to balance the gas flow rate (processing capacity) with the virus removal capacity compared to the case where a fan is provided to circulate the gas.

[0035] The fluidizing apparatus for substances and the dust-containing gas processing apparatus of the present invention have been described above based on several embodiments of a dust-containing gas processing apparatus equipped with a fluidizing apparatus for substances that removes dust from a gas. However, the present invention is not limited to the configurations described in the above embodiments. The configurations can be appropriately modified without departing from the spirit of the invention, such as combining the configurations described in each embodiment as appropriate, forming the gas introduction section at the top (upper surface) of the processing chamber and the gas discharge section at the bottom of the processing chamber, forming the gas introduction section and the gas discharge section at the same height position in the processing chamber, or arranging the axes of the processing chamber and the collecting body (rotating brush) in a horizontal or diagonal direction other than the vertical direction. [Industrial applicability]

[0036] The fluidizing apparatus and dust-containing gas treatment apparatus of the present invention can smoothly process high-concentration dust-containing gases, have a simple apparatus configuration, and possess characteristics that make it easy to balance gas flow rate and dust removal capacity. Therefore, as a dust-containing gas treatment apparatus that can be installed and used independently, it can be widely used for applications such as gas washing, air purification, sterilization, and deodorization. Furthermore, the fluidizing apparatus of the present invention can be widely used for applications involving the fluidization of various gases other than dust-containing gases, as well as solids such as powders. [Explanation of symbols]

[0037] 1 Processing Room 11 Airflow guide plate 12 Airflow guide plate 2. Collector (rotating brush) 21 Support 22 hair 3. Liquid Dispersion Mechanism 31 nozzles 32 pumps 4. Stirring body 5. Liquid storage section 6. Rotary drive mechanism 7. Gas introduction section 8. Gas discharge section 9 Liquid drain

Claims

1. A fluidizing apparatus for substances comprising a cylindrical processing chamber, a rotating brush disposed within the processing chamber, a rotational drive mechanism for rotating the rotating brush, a substance introduction section for introducing a substance into the processing chamber, and a substance discharge section for discharging a substance from the processing chamber, wherein the substance introduction section and the substance discharge section are provided at positions separated in the axial direction of the cylindrical processing chamber, the opening of the substance introduction section on the processing chamber side is formed so that the dynamic pressure of the airflow does not act on the center of the processing chamber where the pressure is low due to the airflow generated by the rotation of the rotating brush, and the opening of the substance discharge section on the processing chamber side is formed so that the dynamic pressure of the airflow acts on the outer circumference of the processing chamber where the pressure is low due to the airflow generated by the rotation of the rotating brush, thereby introducing a substance from the substance introduction section into the processing chamber and discharging the substance from the processing chamber through the substance discharge section solely by the air pressure generated by the rotation of the rotating brush.

2. A fluidizing apparatus for a substance comprising a cylindrical processing chamber, a rotating brush disposed within the processing chamber, a rotational drive mechanism for rotating the rotating brush, a substance introduction section for introducing a substance into the processing chamber, and a substance discharge section for discharging a substance from the processing chamber, wherein the fluidizing apparatus for a substance introduces a substance from the substance introduction section into the processing chamber and discharges the substance from the processing chamber through the substance discharge section solely by the action of the air pressure generated by the rotation of the rotating brush, the dust-containing gas treatment apparatus for removing dust from a gas comprising a cylindrical processing chamber for introducing a dust-containing gas and removing dust from the gas, a collector made of a rotating brush disposed within the processing chamber for collecting dust contained in the gas, a liquid spraying mechanism disposed within the processing chamber, a storage section for the liquid that has flowed down through the processing chamber, and the collector A dust-containing gas processing apparatus comprising a rotary drive mechanism for rotating a brush, a gas introduction section for introducing a dust-containing gas into a processing chamber, and a gas discharge section for discharging the gas from which the dust has been removed from the processing chamber, wherein the opening of the gas introduction section on the processing chamber side is formed so that the dynamic pressure of the airflow does not act on the center of the processing chamber where the pressure is low due to the action of the airflow generated by the rotation of the rotating brush, and the opening of the gas discharge section on the processing chamber side is formed so that the dynamic pressure of the airflow acts on the outer circumference of the processing chamber where the pressure is low due to the action of the airflow generated by the rotation of the rotating brush, thereby introducing gas from the gas introduction section into the processing chamber and discharging gas from the processing chamber through the gas discharge section solely by the action of the airflow generated by the rotation of the collecting body consisting of the rotating brush.

3. The gas discharge section is formed in an elbow shape, and the gas is discharged upward from the processing chamber through the gas discharge section. The dust-containing gas treatment apparatus according to claim 2, characterized in that it is designed to discharge in a certain direction.

4. The dust-containing gas processing apparatus according to claim 2 or 3, characterized in that the liquid recovered in the liquid storage section is circulated to the liquid dispensing mechanism.

5. The dust-containing gas processing apparatus according to claim 4, characterized in that a pump for a liquid dispensing mechanism is installed in the liquid storage section, the pump is connected to a support for a collecting body, and the pump is driven by a rotary drive mechanism that rotates the collecting body.

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