JP3044353U - Filter device with a clogging prevention function - Google Patents

Abstract

(57) [Abstract] [Problem] No clogging of the filter body
It enables efficient removal of pollutants in pollutant gas, and enables inexpensive pollutant removal with a small device. It also enables neutralization, decomposition and detoxification of pollutants contained in polluted gas. In addition, since the filter body is not clogged, continuous operation of the device is possible. A pollutant gas inlet 2 and a clean gas outlet 4 are formed in a casing 1. This inlet 2 and outlet 4
The filter main body 5 for filtering the polluted gas is rotatably arranged at a space between and. The casing 1 is filled with the cleaning liquid 14 which makes a part of the filter body 5 in the circumferential direction into contact by immersion.

Description

[Detailed description of the invention]

[0001]

[Industrial applications]

 The present invention relates to a filter device having a function of preventing clogging, which purifies various pollutant gases such as dust, oil smoke, ozone, toxic gases, and factory exhaust and discharges them to the outside.

[0002]

[Prior art]

 Conventionally, there are various types of filter devices for purifying polluted gas. In the purification of pollutant gas with a filter device, prevention of filter clogging is the biggest problem. As a method of preventing this clogging, for example, two different dust collecting mechanisms are arranged in parallel as in the invention described in Japanese Patent Laid-Open No. 3-278811. Then, one of the dust collecting mechanisms performs dust collecting work, while the other dust collecting mechanism removes attached contaminants. There is known a device in which, when the removal is completed, one of the dust collecting mechanisms is stopped, the pollutants of the stopped mechanism are removed, and the other dust collecting mechanism is operated to collect the dust.

Further, the invention described in JP-A-63-214316, the invention described in JP-A-63-4822, the invention described in JP-A-62-225223, and the JP-A-61-187911 are described. As in the invention, etc., the clogging of the filter is removed by blowing a pressurized gas to the filter part from the direction opposite to the inflow direction of the contaminated gas, and the clogging is removed by vibrating the filter itself Etc. are known.

[0004]

[Problems to be solved by the device]

 However, in the invention described in JP-A-3-278811, two dust collecting mechanisms are installed and the dust collecting mechanisms are alternately operated in order to continuously operate the dust collecting apparatus. is there. For this reason, the device becomes large in size, and even though there are two dust collecting mechanisms, the cleaning function of the polluted gas can only exert the capacity of one, which is extremely economical and economical in terms of the area occupied by the device. It has the drawback of being inefficient.

Further, by performing backwashing, vibration and the like on the filter body to remove pollutant gas and pollutants, the purifying function of pollutant gas is temporarily stopped, or the pollutant released is removed. There is a problem in that it causes problems such as re-sucking into the filter body, which is not efficient and workability is poor.

Further, these devices can remove solid particles of polluted gas, but it is difficult to neutralize or detoxify the components contained in the polluted gas. In order to perform the above work, a separate device is required.

In order to solve the above-mentioned problems, the present invention prevents clogging of the filter body with a small-sized device and enables decontamination of pollutants contained in polluted gas and removal of pollutants. The present invention aims to provide a filter device having a function of preventing clogging.

[0008]

[Means for Solving the Problems]

 In order to solve the above problems, the present invention forms a pollutant gas inlet and a clean gas outlet in a casing, and filters the pollutant gas in a space between the inlet and the outlet. The filter is rotatably arranged, and the casing is filled with a cleaning solution for contacting part of the filter body in the circumferential direction by immersion.

Further, a suction fan may be arranged at the outlet of the clean gas, and the pollutant gas introduced from the inlet may be sucked through the filter body.

Further, the cleaning liquid may be water.

Further, the cleaning liquid may have a function of neutralizing the pollutants of the introduced polluting gas.

Further, the cleaning liquid may be a mixture of microorganisms that decompose the pollutants of the introduced polluting gas.

Further, the cleaning liquid may have a deodorizing function of removing the odor of the introduced polluting gas.

In addition, an ultrasonic transducer may be disposed in the storage portion of the cleaning liquid so as to face the filter body so that the filter body can be ultrasonically cleaned.

[0015]

[Action]

 Since the present invention is configured as described above, when purifying pollutant gas, the pollutant gas is introduced through the inlet and the pollutant gas is discharged through the outlet. Since the filter body exists between the inlet and the outlet, the pollutant gas is removed from the pollutant in the process of passing through the filter body and is discharged from the outlet in a purified state.

Further, the filter main body is rotatably arranged, and the cleaning liquid in the casing and a part thereof in the circumferential direction are brought into contact with each other by immersion. Therefore, if a contaminant that causes clogging is attached to the filter body, rotating the filter body to bring it into contact with the cleaning liquid can remove the contaminant attached to the filter body with this cleaning liquid. it can.

This removal method enables effective removal by using the cleaning liquid most suitable for the expected removal of contaminants. For example, in the case of a water-soluble pollutant, it is possible to remove the pollutant by using water as the cleaning liquid. Further, by forming an ultrasonic vibrator or the like on the bottom bottom of the casing, it is possible to remove contaminants adhering to the filter body by vibrating the ultrasonic vibrator.

Further, when the pollutant introduced from the introduction port contains, for example, an acidic pollutant, it is possible to use an alkaline liquid as the cleaning liquid to neutralize it. In addition, when used for purification of pollutant gas containing oil, a surfactant is used in the cleaning liquid, or a detergent or microorganisms such as bacteria capable of degrading oil are mixed in the cleaning liquid to remove contaminants. Can be removed. In addition, when the polluted gas has a strong odor and is required to be removed, it is possible to add a deodorant to the cleaning liquid or to add activated carbon to the filter body.

Further, if a suction fan is provided at the discharge port, the polluted gas introduced from the introduction port can be efficiently contacted with the filter body and discharged to the outside.

[0020]

【Example】

 An embodiment of the present invention will be described with reference to the drawings. (1) is a casing, which is made of a highly airtight material, and has a pollutant gas inlet (2) at its upper end and side walls ( An outlet (4) for purified gas is formed in 3). The inlet (2) may be tubular depending on the purpose of introducing the polluted gas, or the entire top plate portion (9) of the casing (1) may be used as the inlet to allow introduction of a wide range of polluted gas indoors. Also good.

Further, a filter body (5) is arranged in a space between the discharge port (4) and the introduction port (2), and only gas passing through the filter body (5) is discharged from the discharge port (4). It is configured so that it can be discharged to the outside. For the filter body (5), an appropriate material such as non-woven fabric, metal fiber, metal mesh, synthetic resin, ceramics, glass wool, etc. can be selected and used according to the type of pollutant gas, purification purpose and the like. Further, the filter body (5) can be mixed with various materials depending on the purpose of purification, and for example, activated carbon is blended for the purpose of deodorization. Then, a cylindrical support tube (7) provided with a number of vent holes (6) is inserted in the central axial direction, and the gas flowing in through the filter body (5) is guided to the exhaust port (4). Is formed. Further, the filter main body (5) can have an appropriate shape such as a triangular shape or a square shape in addition to the circular cross section.

Further, both ends of the support tube (7) are axially supported by the casing (1) so that the filter body (5) can rotate. A support shaft (8) having an end projecting outward from the casing (1) is fixed to one end of the support pipe (7). The protrusion of the support shaft (8) is performed via a highly airtight bearing (10), and the filter shaft (5) such as a manual handle and a motor is rotated on the support shaft (8) of the protruding portion. The appropriate mechanism of is connected.

A connecting pipe (11) communicating with the discharge port (4) is connected to the other end of the support pipe (7) through a connecting shaft (12) and introduced into the support pipe (7). The clean gas that has been purified is discharged from the discharge port (4) to the outside. A suction fan (13), which is connected to a motor such as a motor and rotates, is arranged at this discharge port (4) to discharge pollutant gas from the introduction port (2) to the discharge port (4). Efficient and easy. However, this suction fan (13) is not always necessary, and may be configured to discharge the clean gas from the discharge port (4) by the introduction pressure of the pollutant gas from the introduction port (2). In addition, the clean gas discharged from the discharge port (4) is appropriately adjusted according to the purpose of work, such as adding aroma, humidifying and adding moisture, or conversely dehumidifying and drying. This is possible.

Further, the cleaning liquid (14) is filled in the casing (1), and a part of the filter body (5) in the circumferential direction is immersed and contacted. Then, a part of the length of the filter body (5) in the cleaning liquid (14) is immersed in the cleaning liquid (14) to constantly clean the filter body (5) to prevent clogging. It is configured to prevent.

The cleaning liquid (14) can be appropriately selected depending on the type of pollutants contained in the pollutant gas introduced from the inlet (2). For example, non-toxic dust or the like may be introduced through the inlet (2), or if the dust is water-soluble, the cleaning liquid (14) may be composed of only water. Further, if the ultrasonic vibrator (15) is arranged on the lower bottom of the casing (1), it becomes possible to apply ultrasonic vibration to the filter body (5) in the cleaning liquid (14). Then, the contaminants attached to the filter body (5) can be easily removed by the ultrasonic vibration.

If the introduced pollutant gas has a high acidity, the cleaning liquid (14) can be neutralized with an alkaline liquid. If the contaminated gas contains bacteria etc., the disinfecting liquid can be used as the cleaning liquid (14). Further, if the polluted gas contains oil, it is possible to consider a method such as using a surfactant in the purification liquid (14) or mixing bacteria to decompose and remove the oil. Further, when the polluting gas has a strong odor, it becomes possible to add a deodorant, an aromatic, or ozone water to the cleaning liquid.

It is also possible to enhance the cleaning effect of the filter body (5) by arranging a heater (16) in the cleaning liquid (14) and heating the cleaning liquid (14) if necessary. Become.

When the pollutant gas to be introduced has a high temperature, a cooling pipe (19) in which cooling water is circulated may be arranged in the cleaning liquid (14). Then, the inside of the casing (1), the filter body (5), etc. can be cooled. Further, by cooling the cleaning liquid (14), when the pollutant gas contains steam, it is possible to condense and remove the steam.

Further, a supply pipe (17) of the cleaning liquid (14) is formed in the casing (1), and the cleaning liquid (14) is introduced from the supply pipe (17) constantly or at an appropriate interval. The overflow portion (18) is made to overflow and discharged to the outside. However, at the overflow portion (18), the tip portion (21) of the overflow pipe (20) is provided in order to prevent the pollutant gas from being discharged without being purified from the overflow pipe (20). Since the water is sealed, the purifying liquid (14) can be overflowed and discharged to the outside through the liquid sealing portion (22).

In addition, a sensor (23) is arranged in the casing (1) if necessary, and the temperature of the cleaning liquid (14), the contamination state of the cleaning liquid (14), and the like are measured to determine the supply pipe ( It is possible to arbitrarily select the amount, composition and the like of the purification liquid (14) introduced from 17).

In the configuration as described above, the pollutant gas introduced from the inlet (2) passes through the filter body (5) and is purified from the outlet (4) via the support pipe (7). Is discharged to the outside in the state of being kept. During this purification process, contaminants in the pollutant gas that adhere to the filter body (5) are removed by coming into contact with the cleaning liquid (14) as the filter body (5) rotates, so the filter body (5) Does not cause clogging.

Therefore, the filter body (5) can always maintain the pollutant gas removal capacity at the beginning of use, and it is assumed that clogging will occur as in the conventional case and that two dust collecting mechanisms will be provided to operate alternately. It is possible to remove pollutants with high efficiency without having to re-adsorb the pollutants once attached and then shake them off by backwashing.

Further, since there is no clogging, the filter body (5) is small and good, and it is possible to remove pollutants of pollutant gas at low cost and efficiently.

Further, the contact between the filter body (5) and the cleaning liquid (14) causes the cleaning liquid (14) to continuously rotate so that the cleaning liquid (14 ) May always be attached. In another method, the filter body (5) is intermittently rotated by a constant angle to form a drying section where the cleaning liquid (14) does not adhere to the filter body, and the drying section cleans the polluted gas. You may do it.

According to the above usage, for example, when the pollutant particles contained in the polluted gas are large and the filter body (5) has a coarse mesh, the cleaning liquid (14) is always attached to the entire circumference of the filter body (5). It is preferable to be in a state. Further, even when the cleaning liquid (14) has a function of neutralizing and detoxifying polluted gas, it is preferable that the cleaning liquid (14) is always attached to the entire circumference of the filter body (5). If the filter body (5) has fine meshes and the pollutant particles contained in the pollutant gas are also small, a drying part to which the cleaning liquid (14) does not adhere is formed on the filter body (5), and contamination occurs at this drying part. It is preferable to purify the gas. Further, the above adjustment can be arbitrarily determined according to the kind of pollutant contained in the polluted gas, the kind of the cleaning liquid, and the like.

[0036]

[Effect of the invention]

 Since the present invention does not cause clogging of the filter body as described above, it is possible to remove pollutants in pollutant gas very efficiently, and it is possible to remove pollutants at low cost with a small device. Further, by contacting with the cleaning liquid, the clogging of the filter body can be removed by the cleaning liquid, so that the pollutants contained in the polluted gas can be neutralized, decomposed and detoxified. In addition, since the filter body will not be clogged, continuous operation of the equipment will be possible and efficient purification of pollutant gas will be possible with a small equipment.

[Brief description of the drawings]

FIG. 1 is a sectional view showing an embodiment of the present invention.

[Explanation of symbols]

 1 Casing 2 Inlet 4 Outlet 5 Filter Main Body 13 Suction Fan 14 Purifying Liquid 15 Ultrasonic Transducer

Claims (7)

[Utility model registration claims] 1. A casing is provided with a pollutant gas inlet and a clean gas outlet, and a filter body for filtering the pollutant gas is rotatably disposed in a space between the inlet and the outlet. A filter device having a clogging prevention function, characterized in that the casing is filled with a cleaning liquid for contacting part of the circumference of the filter body in the circumferential direction by immersion. 2. The clogging prevention according to claim 1, characterized in that a suction fan is arranged at the clean gas discharge port, and the pollutant gas introduced from the introduction port is sucked through the filter body. Filter device with functions. 3. The filter device having the function of preventing clogging according to claim 1, wherein the cleaning liquid is water. 4. The filter device having a clogging prevention function according to claim 1, wherein the cleaning liquid has a function of neutralizing pollutants of introduced pollutant gas. 5. The filter device having a clogging prevention function according to claim 1, wherein the cleaning liquid is a mixture of microorganisms that decompose pollutants of the introduced polluting gas. 6. The filter device having a clogging preventing function according to claim 1, wherein the cleaning liquid has a deodorizing function of removing an odor of the introduced polluting gas. 7. The clogging prevention function according to claim 1, wherein an ultrasonic transducer is arranged in the cleaning liquid storage portion so as to face the filter body, and the filter body can be ultrasonically cleaned. The equipped filter device.