TWI381878B - Solvent recycling filter - Google Patents

Description

Solvent recovery filter

A solvent recovery filter, especially a solvent recovery filter for recovering particles of chemical substances contained in exhaust gas.

According to the electronic product process, a large number of chemical agents are used for treatment. After using such chemicals, many tiny particles are suspended in the air to form exhaust gas. Such exhaust gas cannot be directly discharged and must be treated to treat the chemical in the exhaust gas. Substance separation can be discharged. The most commonly used method is to use a mist eliminator made of fiber to capture the chemical in the exhaust gas. However, because the amount of exhaust gas that can be treated by the demister is related to its surface area, if it is only separate Increasing the flow rate of the exhaust gas through the defogger will cause the chemical substance to be re-entrained by the exhaust gas and pass through the defogger, which will reduce the defogging effect. Therefore, if the amount of exhaust gas to be treated is increased, the surface area of the demister must be increased, but relative The cost will also increase a lot.

Therefore, how to solve the problems and shortcomings caused by the above-mentioned conventional technologies is the subject of the desire of those involved in this industry.

The main object of the present invention is to reduce the time that solvent particles remain on the filter to increase the ability of the filter to capture solvent particles.

In order to achieve the above object, the solvent recovery filter of the present invention is provided with a gas guiding device and a filtering device. The gas guiding device is provided with an organic body, and has a filtering chamber in the body, and the upper side of the body is connected to feed the exhaust gas into the filtering chamber. a gas pipe, and an exhaust pipe for guiding the exhaust gas to the filter chamber is connected to the lower side of the body, and the filtering device is disposed at a concentric interval with a first filter material and a second filter material which are annularly made of fibers, and The first substrate and the second substrate are respectively disposed on the lower surface of the first filter material and the second filter material, wherein the first substrate is adjacent to the intake pipe side, and the second substrate is adjacent to the exhaust pipe side, so that the exhaust gas flows. The direction is the same as the direction of gravity, so that the solvent particles captured by the first filter material and the second filter material are accelerated to fall downward by the influence of the exhaust gas flow, thereby reducing solvent particles remaining in the first filter material and The time on the second filter.

Referring to the first to fourth figures, it can be clearly seen from the figure that the solvent recovery filter of the present invention is provided with a gas guiding device 1 and a filtering device 2, wherein the gas guiding device 1 is provided with an organism 11 The inside of the body 11 has a filter chamber 111, and an intake pipe 12 is connected to the upper side of the body 11, and an exhaust pipe 13 is connected to the lower side of the body 11, and the filter chamber 111 is inside the intake pipe 12 and the exhaust pipe 13. A partition 112 is laterally spaced between.

The filter device 2 is provided with a first filter material 21 and a ring-shaped second filter material 22 which are annularly arranged in a fiber, so that the first filter material 21 forms a first passage 211, and the first filter material 21 is formed. A second channel 212 is formed between the first filter material 21 and the second filter material 22, and a first substrate 23 and a second substrate 24 are disposed on the upper surface of the first filter material 21 and the second filter material 22. a plurality of air inlets 231, and each of the air inlets 231 is opposite to the second passage 212, and the second substrate 24 is provided with an air outlet 241, and the air outlet 241 is opposite to the first passage 211, so that the first passage 211 is received The first substrate 23 is shielded, and the lower portion communicates with the air outlet 241 of the second substrate 24, and the upper portion of the second passage 212 communicates with the air inlet 231 of the first substrate 23, and the lower portion is shielded by the second substrate 24.

By the way, when the filter device 2 is installed in the air guide device 1, the first substrate 23 of the filter device 2 is positioned on the partition 112 of the filter chamber 111, and the air inlet 231 is exposed to the partition 112. Further, the first filter material 21, the second filter material 22, and the second substrate 24 are located below the partition plate 112, that is, near the side of the exhaust pipe 13.

Referring to the first, fifth and sixth figures, it can be clearly seen from the figure that when the invention is used, the exhaust gas is sent from the intake pipe 12 of the air guiding device 1 to the body 11 for filtration. In the chamber 111, since the filter chamber 111 is partitioned by the partition 112, the exhaust gas cannot pass through the partition 112, and since the intake port 231 of the filter device 2 is exposed to the partition 112, the exhaust gas flows into the air inlet 231. a second channel 212 formed between the filter material 21 and the second filter material 22, but because the second channel 212 is shielded by the second substrate 24, the exhaust gas can only enter the first channel through the first filter material 21. In 211, and entering the filter chamber 111 through the second filter material 22, the exhaust gas is continuously discharged from the exhaust pipe 13 to the filter chamber 111.

By the way, when the exhaust gas passes through the first filter material 21 and the second filter material 22, the solvent particles contained in the exhaust gas are captured by the first filter material 21 and the second filter material 22, and are in the first filter material 21 The second filter material 22 is assembled into a liquid state by the polymerization force, and is further dropped by gravity to facilitate recovery. However, since the flow direction of the exhaust gas flows from the first substrate 23 toward the second substrate 24, the direction of the exhaust gas flows. In the same direction as the direction of gravity, it is a solvent particle that is assembled into a liquid state, which is accelerated by the influence of the flow of the exhaust gas, and the time during which the solvent particles remain on the first filter material 21 and the second filter material 22 is reduced. So that the first filter material 21 and the second filter material 22 can capture more solvent particles for better recovery.

Referring to the seventh figure, it can be clearly seen from the figure that the filter device 2 is disposed at one or more side by side of the partition plate 112 of the air guide device 1, so that the intake pipe 12 can introduce more exhaust gas for treatment.

Therefore, the present invention is capable of solving the shortcomings and deficiencies of the prior art. The key technology is that the flow direction of the exhaust gas in the air guiding device 1 is the same as the gravity direction of the solvent particles, and the solvent particles remain in the first residue. The time on the filter material 21 and the second filter material 22 increases the ability of the first filter material 21 and the second filter material 22 to capture solvent particles, in addition to increasing the filtration efficiency, and increasing the passage of the first filter material per unit time. The amount of exhaust gas between the 21 and the second filter material 22.

1. . . Air guide

11. . . Body

111. . . Filter room

112. . . Partition

12. . . Intake pipe

13. . . exhaust pipe

2. . . filter

twenty one. . . First filter

211. . . First channel

212. . . Second channel

twenty two. . . Second filter

twenty three. . . First substrate

231. . . Air inlet

twenty four. . . Second substrate

241. . . Air outlet

The first figure is a side cross-sectional view of the present invention.

The second figure is a perspective view of the filter device of the present invention.

The third figure is a perspective view of a further perspective of the filter device of the present invention.

The fourth figure is an exploded perspective view of the filtering device of the present invention.

The fifth figure is a schematic diagram (1) of the exhaust gas flow during the filtration of the present invention.

The sixth figure is a schematic diagram (2) of the exhaust gas flow during the filtration of the present invention.

Figure 7 is a side cross-sectional view of a preferred embodiment of the present invention.

1. . . Air guide

11. . . Body

111. . . Filter room

112. . . Partition

12. . . Intake pipe

13. . . exhaust pipe

2. . . filter

twenty two. . . Second filter

twenty three. . . First substrate

twenty four. . . Second substrate

Claims (2)

A solvent recovery filter is provided with a gas guiding device and a filtering device, wherein: the gas guiding device is provided with an organism, the inside of the body has a filtering chamber, and the upper side of the body is connected to be used for sending the exhaust gas into the filter. An intake pipe of the chamber, and an exhaust pipe for exhausting the exhaust gas to the filter chamber is connected to the lower side of the body, and a partition is laterally spaced between the intake pipe and the exhaust pipe in the filter chamber; the filtering device is arranged at a concentric interval a first filter material and a ring-shaped second filter material made of a fiber, a first channel is formed in the first filter material, and a second channel is formed between the first filter material and the second filter material, and a first substrate and a second substrate are respectively disposed on the upper surface of the first filter material and the second filter material, and the first substrate surface is provided with a plurality of air inlets, and each air inlet is opposite to the second channel, and the second The substrate is provided with an air outlet, and the air outlet is opposite to the first passage, and the first substrate is positioned on the partition, so that the first filter material, the second filter material and the second substrate are located below the partition plate, and the air inlet is exposed In the partition The solvent recovery filter of claim 1, wherein the filter device is disposed side by side on the separator.