Apparatus and method for processing fluids to be processed

Abstract

To provide a simple processing apparatus and processing method for a fluid to be processed. [Solution] The above problem is solved by a fluid processing apparatus 1 characterized by comprising: a cylindrical filter 2 having powder adhering to its outer surface 3 and an opening 7 at its upper end that serves as both a fluid outlet and inlet; a cylindrical body 6 housing the filter 2; and a dish-shaped body 10 positioned below the cylindrical body 6, having an opening 8 that serves as both an inlet 17 and outlet for the powder-containing fluid, and an inlet 12 for the fluid to be processed.

Description

Technical Field

[0001] The present invention relates to a processing apparatus and a processing method for a fluid to be processed.

Background Art

[0002] In deodorization, concentration, dehumidification, etc., the adsorption action of powders is utilized. Currently, for example, there is a method in which a powder is attached to the surface of a filter and then a fluid such as a gas or a liquid is passed through the filter.

[0003] Specifically, for example, in processing facilities for exhaust gas, collected ash, etc., a proposal has been made to attach a carbon-based adsorbent to the surface of a bag filter and then pass exhaust gas through the bag filter to remove dioxins contained in the exhaust gas and dust flying in company with the exhaust gas (see, for example, Patent Document 1). According to this apparatus, dioxins and dust are removed, and it becomes easier to discharge the exhaust gas (clean gas) into the atmosphere.

[0004] However, in the apparatus of Patent Document 1, valves, valves, etc. for each process such as the process of attaching the adsorbent to the bag filter, the process of processing the exhaust gas, and the process of removing the adsorbent are required, and the apparatus becomes extremely complicated.

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0006] The problem to be solved by the present invention is to provide a simple processing apparatus and a processing method for a fluid to be processed.

Means for Solving the Problems

[0007] The means to solve the above problems are as follows: [First aspect] A cylindrical filter having powder adhering to its outer surface and an opening at its upper end that serves as both a fluid outlet and inlet, A cylindrical body that houses this filter, A dish-shaped body having an opening that serves as both an inlet and outlet for the powder-containing fluid, and an inlet for the fluid to be processed, located below this cylindrical body. 、 It comprises a box that houses the aforementioned dish and to which the fluid to be processed is supplied, The aforementioned dish-shaped body is movable vertically, and when it moves upward, it comes into contact with the cylindrical body, and when it moves downward, the fluid to be processed inside the box flows in through the gap between it and the cylindrical body. A processing apparatus for a fluid to be processed, characterized by the above.

[0008]

[0009] [Number 2 [The manner of] The lower end of the cylindrical body is in the shape of an inverted cone or an inverted pyramid. The dish-shaped body is shaped to follow the lower end of the cylindrical body. The 1 Apparatus for processing a fluid to be processed according to the embodiment described above.

[0010] [Number 3 [The manner of] Processing apparatus according to either claim 1 or claim 2 Using placement, The airflow velocity of each fluid is controlled so that the airflow velocity of the filter is equal to or greater than a predetermined value. A method for processing a fluid to be processed, characterized by the features described above.

[0011] [Number 4 [The manner of] The aforementioned ventilation speed is 0.5 to 1 m / min. Claim 3 A method for processing the fluid to be processed as described above. [Effects of the Invention]

[0012] According to the present invention, a simple processing apparatus and processing method for a fluid to be processed is provided. [Brief explanation of the drawing]

[0013] [Figure 1] The processing apparatus in this form (the hopper is closed). [Figure 2] The processing apparatus in this form (the hopper is open).

Embodiments for Carrying Out the Invention

[0014] Next, embodiments for carrying out the present invention will be described. Note that this embodiment is an example of the present invention. The scope of the present invention is not limited to the scope of this embodiment. Hereinafter, the fluid to be treated such as cleaning is also referred to as the fluid to be treated, the powder such as activated carbon and zeolite for treating this fluid to be treated is also referred to as powder or functional powder, and the fluid to be treated after treatment is also referred to as a cleaning fluid or the like.

[0015] As shown in FIGS. 1 and 2, the processing apparatus 1 for the fluid to be treated in this form includes a cylindrical filter 2 having an opening 7 at the upper end that serves as both a fluid outlet and an inlet, and a cylindrical body 6 that houses the filter 2. Below the cylindrical body 6, a dish body 10 (hereinafter, also referred to as a hopper or the like, for example) having an opening 8 that serves as both an outlet and an inlet for the powder-containing fluid and an inlet for the fluid to be treated is arranged.

[0016] In FIG. 2, the flow of the fluid to be treated is indicated by a white arrow, the flow of the cleaning fluid is indicated by a dashed arrow, the flow of the powder is indicated by a black arrow, and the flow of the powder-containing fluid is indicated by a white arrow and a black arrow.

[0017] As described above, the opening 7 of the filter 2 serves as both an outlet and an inlet for the fluid to be treated. That is, it functions as an outlet for the cleaning fluid and an inlet (jet outlet) for the fluid during the air pulse. The air pulse is used to remove the powder adhering to the outer peripheral surface 3 of the filter 2. On the other hand, the opening 16 of the dish body 10 functions as an inlet for the powder adhering to the filter 2 and also functions as an outlet for the powder removed from the filter 2. As described above, since the opening 7 and the opening 16 serve as both inlets and outlets for the fluid and the powder, the number of valves and valves can be reduced. Moreover, according to this form, the fluid treatment and the pulse treatment can be performed only by changing the direction of the flow of various fluids.

[0018] Outside the dish-shaped body 10, a cylindrical box-shaped body 11 is provided in the illustrated example to house the dish-shaped body 10. The fluid to be processed is supplied into this box-shaped body 11. Meanwhile, the dish-shaped body 10 is made movable up and down by, for example, a cylinder 14. The cylinder 14 can be made up of an electric cylinder, a hydraulic cylinder, an air cylinder, etc., but it is preferable to make it a hydraulic cylinder or an air cylinder that handles fluid.

[0019] When the dish-shaped body 10 moves upward, it comes into contact with the lower end of the cylindrical body 6, and when it moves downward, it separates from the cylindrical body 6, forming a gap 15. When the dish-shaped body 10 separates from the cylindrical body 6 and the gap 15 is formed between the cylindrical body 6 and the dish-shaped body 10, the fluid to be processed in the box-shaped body 11 flows into the dish-shaped body 10. In other words, the gap 15 becomes the inlet 12 for the fluid to be processed in the dish-shaped body 10.

[0020] Incidentally, before processing the fluid to be processed begins, it is preferable to attach powder to the outer surface 3 of the filter 2 (this attachment may also be called impregnation, etc.) and filter the fluid to be processed using both the filter 2 and the powder attached to the outer surface 3 of the filter 2. In attaching this powder, as shown in Figure 2, first, the inside of the cylindrical body 6 is sucked from the valve 9 located above the cylindrical body 6 by a suction blower (not shown). Consequently, a fluid such as air containing powder (powder-containing fluid) flows into the dish body 10 from the opening 16 of the dish body 10, and the fluid to be processed flows into the dish body 10 from the inlet 12 of the dish body 10, and is stirred and mixed.

[0021] This mixed fluid flows in a swirling motion between the cylindrical body 6 and the filter 2 13, flowing from the outer circumferential surface 3 to the inner circumferential surface 4 of the filter 2. During this process, the powder is blocked by the filter 2 and adheres to the outer circumferential surface 3 of the filter 2, forming a powder layer. On the other hand, the fluid to be processed passes through the filter 2.

[0022] When processing the fluid to be treated, the fluid taken in from the inlet 12 of the dish body 10 flows upward while swirling between the cylindrical body 6 and the filter 2 13, and is filtered by passing through the powder layer and the filter 2. The clean fluid after filtration flows through the inner part of the filter 2 and is discharged out of the system by passing through the valve 9, etc.

[0023] While a larger amount of powder adhering to filter 2 increases filtration efficiency, a larger amount of powder can cause it to detach from filter 2 during processing of the fluid, increasing the likelihood of through-passes and uneven filtration. Therefore, it is preferable to increase the airflow velocity of the mixed fluid to press the powder against filter 2 as much as possible.

[0024] The airflow velocity is preferably adjusted by controlling the airflow velocity of various fluids so that the airflow velocity is above a predetermined value. Specifically, the airflow velocity is preferably 0.5 to 2 m / min, more preferably 0.75 to 1.5 m / min, and particularly preferably 1 to 1.5 m / min. In this regard, increasing the airflow velocity increases the amount of powder adhering to the filter 2, and the adhesion becomes stronger. Moreover, because the differential airflow pressure increases, the adhesion of powder to the filter 2 becomes less uneven, and it adheres more uniformly. However, if the airflow velocity is increased too much, the contact rate between the fluid being processed and the powder may decrease.

[0025] In this regard, from the viewpoint of uniformly adhering the powder, it is preferable that the powder has a uniform particle size and concentration. The particle size of the powder is preferably 0.5 to 50 μm, more preferably 1 to 30 μm, and particularly preferably 1 to 15 μm. If the particle size of the powder is too small, the airflow resistance will increase. On the other hand, if the particle size of the powder is too large, the adsorbed powder will be more likely to peel off.

[0026] On the other hand, the concentration of the powder is preferably 0.5 to 50 g / m³. 3 Comfortably 1-15g / m 3 Particularly preferred is 5-10 g / m 3If the powder concentration is too low, the deposition time for the functional powder will be longer. On the other hand, if the powder concentration is too high, the powder will not be uniformly deposited on the outer surface 3 of the filter 2.

[0027] The powder can be dispensed, for example, from a sealed tank filled with flocculated powder using a quantitative dispensing device such as a table feeder, and then transported by a fluid such as air to the opening 16 at the bottom of the dish 10. When suction is performed from the valve 9, the transported powder is sucked (supplied) into the dish 10 and stirred and mixed with the fluid to be processed supplied from the box 11 within the dish 10. This stirring and mixing makes the powder concentration uniform. This uniformly concentrated powder flows toward the filter 2 together with the fluid to be processed and adheres to the outer surface 3 of the filter 2.

[0028] Incidentally, from the standpoint of effectively stirring and mixing the aforementioned powder with the fluid to be processed, the following configuration is recommended. Specifically, the lower end of the cylindrical body 6 is made into an inverted cone or inverted pyramidal shape. The dish body 10 is shaped to follow the lower end of the cylindrical body 6. In other words, the dish body 10 is inverted cone or inverted pyramidal shape, and can be a hopper, for example. The dish body 10 is made to be movable up and down, so that when it moves upward it comes into contact with the cylindrical body 6, and when it moves downward the fluid to be processed in the box body 11 flows into the dish body 10 through the gap 15 between the cylindrical body 6 and the dish body 10. With this configuration, the gap 15 between the cylindrical body 6 and the dish body 10 can be narrowed, so the flow velocity of the fluid to be processed flowing into the dish body 10 can be increased, improving the stirring and mixing effect between the fluid to be processed and the powder. Moreover, if the fluid to be processed flows spirally through the gap 15, the flow velocity of the fluid to be processed gradually increases, further improving the stirring and mixing effect.

[0029] Furthermore, as an embodiment to enhance the stirring and mixing effect of the powder, although not shown in the figures, it is also conceivable that the inner surface of the dish body 10 is equipped with multiple nozzles that blow the fluid to be processed into the dish body 10.

[0030] Incidentally, in this configuration, where the powder and the fluid to be processed are flowed upwards, larger powder particles are more likely to remain in the dish 10 or fall off along the way, thus providing a classification effect. From the perspective of this classification effect, it is clear that simply increasing the airflow velocity is not sufficient, as mentioned above.

[0031] Furthermore, in this embodiment, since there are two fluid inlets, the inlet 12 for the fluid to be processed and the opening 16 which is the inlet for the powder-containing fluid, there is also the effect of increasing the pressure that causes the powder to adhere to the outer surface 3 of the filter 2.

[0032] Filter 2 can be a pleated filter, an air filter, or the like. However, a filter with a large surface area, such as a pleated filter, is preferred. A double-fold pleated filter can also be used to increase the surface area.

[0033] Furthermore, it is preferable that at least the outer surface of filter 2 be a film with a high adhesion effect for powder particles, such as a nanofiber film.

[0034] The thickness of the powder layer is preferably 0.3 to 3 mm, more preferably 0.5 to 2 mm, and particularly preferably 1 to 1.5 mm. If the powder layer is too thin, the filtration effect of the fluid to be treated may be insufficient, while if the powder layer is too thick, the filtration may become uneven due to some of the powder peeling off.

[0035] The type of powder is not particularly limited, and fine particle powders such as activated carbon, zeolite, and MOF can be used to deodorize, dehumidify, etc., the fluid to be treated.

[0036] By adhering powder to the outer surface 3 of the filter 2, the fluid to be treated can be processed effectively. During the processing of the fluid, the dish 10 is moved downward so that the fluid to be treated flows into the dish 10 from the inlet 12.

[0037] Specifically, for example, the internal cavity of the filter 2 is drawn in by a suction blower or the like through a valve 9 located above the cylindrical body 6. As a result, the fluid to be processed inside the box body 11 flows into the dish body 10 through the gap 15.

[0038] The fluid to be treated, which flows into the dish-shaped body 10, flows upward while swirling between the cylindrical body 6 and the filter 2 13, and is filtered as it passes through the filter 2 to which powder is attached, becoming a clean fluid. This clean fluid flows upward through the inner cavity of the filter 2 and is discharged from the opening 7, which is the fluid outlet located at the upper end of the filter 2.

[0039] If the above processing continues, the powder will naturally become coated with various removal substances, reducing its processing capacity, and thus requiring the powder to be replaced.

[0040] First, the powder adhering to the filter 2 is removed (pulsed). In this pulsed process, the dish 10 is moved upward, and as shown in Figure 1, the dish 10 and the lower end of the cylindrical body 6 come into contact, eliminating the gap 15. Then, a shock wave such as an air pulse is applied to the inner surface of the filter 2 through the valve 9, sweeping the powder off the outer surface 3 of the filter 2. The swept-off powder falls into the dish 10 and is discharged from the opening 16 at the lowest end of the dish 10.

[0041] Once the powder has been removed in the manner described above, the powder adhesion treatment to filter 2, as explained earlier, is performed. As described above, in this embodiment, a series of operations can be carried out simply by changing the fluid flow, resulting in an extremely simple apparatus. [Industrial applicability]

[0042] This invention can be used as a processing apparatus for a fluid to be treated. [Explanation of Symbols]

[0043] 1... Processing apparatus, 2... Filter, 3... Filter outer surface, 4... Filter inner surface, 5... Filter inner cylinder, 6... Cylindrical body, 7... Upper opening, 8... Lower opening, 9... Valve, 10... Dish body, 11... Box body, 12... Inlet for the fluid to be processed, 13... Between the cylindrical body and the filter, 14... Cylinder, 15... Gap, 16... Opening of the dish body, 17... Inlet for the powder-containing fluid.

Claims

1. A cylindrical filter having powder adhering to its outer surface and an opening at its upper end that serves as both a fluid outlet and inlet, A cylindrical body that houses this filter, This cylindrical body has a dish-shaped body positioned below it, which has an opening that serves as both an inlet and outlet for the powder-containing fluid, as well as an inlet for the fluid to be processed. A processing apparatus for a fluid to be processed, characterized by the above.

2. The box contains the aforementioned dish and is supplied with the fluid to be processed, The aforementioned dish-shaped body is movable vertically, and when it moves upward, it comes into contact with the cylindrical body, and when it moves downward, the fluid to be processed inside the box flows in through the gap between it and the cylindrical body. Apparatus for processing a fluid to be processed according to claim 1.

3. The lower end of the cylindrical body is in the shape of an inverted cone or an inverted pyramid. The dish-shaped body is shaped to follow the lower end of the cylindrical body. The apparatus for processing a fluid to be processed according to claim 2.

4. A cylindrical filter having a fluid outlet and an inlet, Using a device having an inlet and outlet for a powder-containing fluid, and a dish having a fluid inlet, positioned below this filter, The airflow velocity of each fluid is controlled so that the airflow velocity of the filter is equal to or greater than a predetermined value. A method for processing a fluid to be processed, characterized by the features described above.

5. The aforementioned ventilation speed is 0.5 to 1 m / min. The method for processing a fluid to be processed according to claim 4.

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