WO2022120729A1

WO2022120729A1 - Vocs waste gas filter

Info

Publication number: WO2022120729A1
Application number: PCT/CN2020/135299
Authority: WO
Inventors: 张尚
Original assignee: 亚楠(南京)环保科技有限公司
Priority date: 2020-12-07
Filing date: 2020-12-10
Publication date: 2022-06-16
Also published as: CN112844014A

Abstract

A VOCs waste gas filter, comprising a box body (1), an oxidation mechanism (4), a first mounting plate (5), a second mounting plate (6), and a conveying mechanism (9). A liquid inlet cavity (2) and a treatment cavity (3) are distributed up and down; the oxidation mechanism (4) is mounted in the box body (1), and comprises clamping plates (41), a sponge body (42), through holes (43), an arc-shaped plate (44), and liquid flow holes (45); two clamping plates (41) having the same specification are fixedly mounted in the treatment cavity (3), and the two ends of each clamping plate (41) are respectively and fixedly connected to the upper and lower cavity walls of the treatment cavity (3); a plurality of through holes (43) that are uniformly distributed are formed in the two clamping plates (41); the sponge body (42) is fixedly embedded between the two clamping plates (41); and a liquid collection mechanism (9a) is mounted at the bottom of the box body (1). The VOCs waste gas filter can improve the filtering effect.

Description

A VOCs exhaust gas filter

technical field

The invention relates to the technical field of waste treatment, in particular to a VOCs exhaust gas filter.

Background technique

VOCs are volatile organic compounds, which refer to organic compounds with a saturated vapor pressure greater than 70Pa at room temperature and a boiling point below 260°C under normal pressure, or all organic compounds with corresponding volatility at a vapor pressure greater than or equal to 10Pa at 20°C. It comes from petrochemical, automobile engine exhaust, pharmaceutical, printing and other industries, and its main components are hydrocarbons, phenols, aromatics, etc. VOCs can form optical smog in the atmosphere, causing great harm to the environment and the human body. After VOCs enter the human body through the respiratory tract and skin, it will cause temporary or permanent damage to the human respiratory, blood, liver and other systems and organs, especially Polycyclic aromatic hydrocarbons such as benzene and aromatics are carcinogenic to humans. Therefore, the treatment of VOCs has attracted more and more attention from all over the world.

At present, the existing filter filtration structure adopts a simple flat-plate structure filter frame, which has a single structure. The gas enters the air inlet and then passes through the middle of the filter frame. The utilization rate of the filter material is low, the replacement time is frequent, and the utilization rate of the internal space of the equipment is low. Low.

Therefore, it is necessary to provide a VOCs exhaust gas filter to solve the above technical problems.

SUMMARY OF THE INVENTION

The technical problem solved by the present invention is to provide a VOCs exhaust gas filter that can improve the filtering effect and the cleanliness of the filtering efficiency.

In order to solve the above technical problems, the VOCs exhaust gas filter provided by the present invention includes: a box body, which is divided into a liquid inlet cavity and a treatment cavity by a fixed partition plate, and the liquid inlet cavity and the treatment cavity are distributed up and down; The mechanism is installed in the box, and the oxidation mechanism includes a splint, a sponge, a through hole, an arc plate and a liquid flow hole. Two splints of the same specification are fixedly installed in the processing chamber, and the two ends of the splint are respectively connected to the upper and lower parts of the processing chamber. The two cavity walls are fixedly connected, a number of evenly distributed through holes are opened on the two splints, and a sponge body is fixedly embedded between the two splints, and the two arc-shaped plates are fixedly installed in the liquid inlet cavity, and the liquid inlet The bottom of the cavity is provided with a liquid flow hole that communicates with the top of the sponge body; the first installation plate is fixedly installed on the inner top wall of the processing cavity and is close to the front end surface of the box body, and the front end surface of the first installation plate is fixed An adsorption mechanism is installed; a second installation plate, the second installation plate is fixedly installed on the inner top wall of the processing chamber and is close to the rear end surface of the box body, and a filter mechanism is installed on the rear end surface of the second installation plate; The mechanism is installed on the box.

Preferably, the adsorption mechanism includes a circular casing, a stirring rod, an air intake hose and an exhaust net, the circular casing is fixedly installed on the front end surface of the first mounting plate, and the center of the outer wall of the circular casing is fixedly installed with a Drive motor, the output end of the drive motor extends into the circular casing and is fixedly installed with several stirring rods, the top of the circular casing is fixedly installed with two air intake hoses, and the bottom of the circular casing is installed There are exhaust nets for exhaust.

Preferably, an appropriate amount of activated carbon particles are stored in the circular casing, and the diameter of the activated carbon particles is larger than the mesh holes of the exhaust net.

Preferably, the filter mechanism includes an installation frame, an activated carbon mesh plate and a through hole, the installation frame is fixedly installed on the rear end surface of the second installation plate, and the other side wall of the installation frame is fixedly connected to the rear inner wall of the processing chamber, and the installation frame A plurality of groups of activated carbon mesh plates are fixedly installed, and a plurality of through holes are opened at the bottom of the installation frame.

Preferably, the distance between the first mounting plate and the second mounting plate and the inner bottom wall of the processing chamber is 8-12 cm.

Preferably, the transmission mechanism includes an air intake conduit, an exhaust conduit and a liquid intake conduit, the two intake conduits are fixedly connected to the air inlet opened on the front end of the box, and the inner wall of the air inlet is connected to one end of the air intake hose. Fixed connection, the exhaust pipe is fixedly installed on the rear end of the box, and the exhaust pipe is above the installation frame, and the liquid inlet pipe is fixedly installed on the top of the box.

Preferably, a liquid collecting mechanism is installed at the bottom of the box body, and the liquid collecting mechanism includes a waste liquid tank and a liquid discharge pipe, and the two side walls of the waste liquid tank are respectively fixed by the liquid discharge pipe and the liquid discharge cavity opened on the two side walls of the processing chamber. connect.

Compared with the related art, the VOCs exhaust gas filter provided by the present invention has the following beneficial effects:

1. The present invention discharges the VOCs exhaust gas from the intake duct into the intake hose, and turns on the drive motor to drive the stirring rod to stir the activated carbon particles, so that the VOCs exhaust gas entering the circular shell through the intake hose passes through the activated carbon particles. The activated carbon particles after stirring increase the adsorption capacity, which avoids that the adsorption capacity of the local activated carbon particles cannot be utilized because they are at the bottom;

2. The present invention injects hydrogen peroxide from the liquid inlet pipe into the liquid inlet cavity, and then wets the sponge body through the liquid flow hole, so that the VOCs waste gas entering the sponge body through the splint through hole can be oxidized;

3. The VOCs waste gas treated by the oxidation mechanism of the present invention is discharged to the bottom of the installation frame along the gap between the second installation plate and the inner bottom wall of the treatment chamber, and enters the installation frame with the through hole and is further moved by the activated carbon mesh plate in the installation frame. Therefore, the treatment of VOCs waste gas is strengthened.

Description of drawings

1 is a schematic structural diagram of a preferred embodiment of a VOCs exhaust gas filter provided by the present invention;

Fig. 2 is a partial cross-sectional structural schematic diagram of the box shown in Fig. 1;

3 is a schematic structural diagram of an adsorption mechanism provided by the present invention;

FIG. 4 is a schematic structural diagram of a filtering mechanism provided by the present invention.

Labels in the figure: 1, box body, 2, liquid inlet chamber, 3, treatment chamber, 4, oxidation mechanism, 41, splint, 42, sponge body, 43, through hole, 44, curved plate, 45, liquid flow hole , 5, the first mounting plate, 6, the second mounting plate, 7, the adsorption mechanism, 71, the circular shell, 72, the stirring rod, 73, the intake hose, 74, the exhaust net, 8, the filter mechanism, 81. Installation frame, 82, Activated carbon mesh plate, 83, Through hole, 9. Transmission mechanism, 91, Intake conduit, 92, Exhaust conduit, 93, Liquid inlet pipe, 9a, Liquid collection mechanism, 91a, Waste liquid tank, 92a, drain.

Detailed ways

The present invention will be further described below with reference to the accompanying drawings and embodiments.

Please refer to Fig. 1, Fig. 2, Fig. 3 and Fig. 4 in combination, wherein Fig. 1 is a schematic structural diagram of a preferred embodiment of the VOCs exhaust gas filter provided by the present invention; Fig. 2 is a part of the box shown in Fig. 1 Schematic cross-sectional view of the structure; FIG. 3 is a schematic view of the structure of the adsorption mechanism provided by the present invention; FIG. 4 is a schematic view of the structure of the filter mechanism provided by the present invention. The VOCs exhaust gas filter includes: a box body 1 , an oxidation mechanism 4 , a first mounting plate 5 , a second mounting plate 6 and a transmission mechanism 9 .

In the specific implementation process, as shown in Figures 1 and 2, the box body 1 is divided into a liquid inlet chamber 2 and a processing chamber 3 by a fixedly installed partition, and the liquid inlet chamber 2 and the processing chamber 3 are distributed up and down, and the oxidation The mechanism 4 is installed in the box body 1, and the oxidation mechanism 4 includes a splint 41, a sponge 42, a through hole 43, an arc plate 44 and a liquid flow hole 45. Two splints 41 of the same specification are fixedly installed in the processing chamber 3, And the two ends of the splint 41 are respectively fixedly connected with the upper and lower chamber walls of the processing chamber 3 , the two splints 41 are provided with a number of evenly distributed through holes 43 , and the two splints 41 are fixedly fitted with a sponge 42 . , the two arc-shaped plates 44 are fixedly installed in the liquid inlet chamber 2, and the bottom of the liquid inlet chamber 2 is provided with a liquid flow hole 45 that communicates with the top of the sponge body 42, and the bottom of the box body 1 is installed with a liquid collecting mechanism 9a , and the liquid collecting mechanism 9a includes a waste liquid tank 91a and a liquid discharge pipe 92a.

It should be noted that: the hydrogen peroxide is injected into the liquid inlet chamber 2 from the liquid inlet pipe 93, and then the sponge body 42 is soaked through the liquid flow hole 45, so that the VOCs waste gas entering the sponge body 42 through the through hole 43 of the splint 41 can be oxidized. , and the generated waste water enters the waste liquid tank 91a through the drain pipe 92a for collection.

Referring to FIG. 2 and FIG. 3 , the first mounting plate 5 is fixedly installed on the inner top wall of the processing chamber 3 and is close to the front end surface of the box body 1, and the front end surface of the first mounting plate 5 is installed with an adsorption mechanism 7, and the adsorption The mechanism 7 includes a circular casing 71, a stirring rod 72, an intake hose 73 and an exhaust net 74. The circular casing 71 is fixedly installed on the front end surface of the first mounting plate 5, and the center of the outer wall of the circular casing 71 is A drive motor is fixedly installed at the top of the circular housing 71, and the output end of the drive motor extends into the circular casing 71 and is fixedly installed with several stirring rods 72. The top of the circular casing 71 is fixedly installed with two intake air hoses 73 , and an exhaust net 74 for exhausting is installed at the bottom of the circular casing 71 , and an appropriate amount of activated carbon particles are stored in the circular casing 71 , and the diameter of the activated carbon particles is larger than the mesh hole of the exhaust net 74 .

It should be noted that: the drive motor is turned on to drive the stirring rod 72 to stir the activated carbon particles, so that the VOCs exhaust gas entering the circular casing 71 through the intake hose 73 is absorbed by the activated carbon particles, and the activated carbon particles after stirring are enlarged. The adsorption capacity is improved, and the adsorption capacity of local activated carbon particles is prevented from being unutilized because they are located at the bottom. At the same time, the activated carbon particles in the circular shell 71 are stirred to make the VOCs exhaust gas flow more smoothly, and the treated exhaust gas passes through the exhaust net 74. It is discharged and discharged to the clamping plate 41 along the gap between the first installation plate 5 and the inner bottom wall of the processing chamber 3 .

Referring to FIG. 2 and FIG. 4 , the second mounting plate 6 is fixedly installed on the inner top wall of the processing chamber 3 and is close to the rear end surface of the box body 1 , and a filter mechanism 8 is installed on the rear end surface of the second mounting plate 6 . The filter mechanism 8 includes an installation frame 81, an activated carbon mesh plate 82 and a through hole 83, the installation frame 81 is fixedly installed on the rear end face of the second installation plate 6, and the other side wall of the installation frame 81 is fixedly connected to the rear inner wall of the processing chamber 3, A plurality of groups of activated carbon mesh plates 82 are fixedly installed in the installation frame 81 , and a plurality of through holes 83 are opened at the bottom of the installation frame 81 , and the first installation plate 5 and the second installation plate 6 are separated from the inner bottom wall of the processing chamber 3 by 8 -12cm.

It should be noted that: the VOCs exhaust gas treated by the oxidation mechanism 4 is discharged to the bottom of the installation frame 81 along the gap between the second installation plate 6 and the inner bottom wall of the treatment chamber 3, and enters the installation frame 81 along with the through hole 83 and is installed by the installation frame 81. The activated carbon mesh plate 82 in the frame 81 is further processed, thus enhancing the treatment of VOCs exhaust gas.

Referring to Figure 1, the transmission mechanism 9 is installed on the box body 1, and the transmission mechanism 9 includes an air intake conduit 91, an exhaust conduit 92 and a liquid inlet conduit 93. The air inlet is fixedly connected, and the inner wall of the air inlet is fixedly connected with one end of the air intake hose 73, the exhaust duct 92 is fixedly installed on the rear end surface of the box 1, and the exhaust duct 92 is above the installation frame 81, The liquid inlet pipe 93 is fixedly installed on the top of the box body 1 .

The working principle of the VOCs exhaust gas filter provided by the present invention is as follows:

The VOCs exhaust gas is discharged from the intake duct 91 into the intake hose 73, and the drive motor is turned on to drive the stirring rod 72 to stir the activated carbon particles, so that the VOCs exhaust gas entering the circular housing 71 through the intake hose 73 passes through the activated carbon The particles are absorbed, and the activated carbon particles after stirring increase the adsorption capacity, which avoids that the adsorption capacity of local activated carbon particles is not utilized because they are at the bottom. Smooth, and the treated exhaust gas is discharged through the exhaust net 74 and is discharged to the splint 41 along the gap between the first installation plate 5 and the inner bottom wall of the treatment chamber 3, and the hydrogen peroxide is injected from the liquid inlet pipe 93 into the liquid inlet chamber 2. , and then wet the sponge body 42 through the liquid flow hole 45, so that the VOCs waste gas entering the sponge body 42 through the through hole 43 of the splint 41 can be oxidized, and the generated waste water enters the waste liquid tank 91a through the drain pipe 92a for collection, and The VOCs exhaust gas treated by the oxidation mechanism 4 is discharged to the bottom of the installation frame 81 along the gap between the second installation plate 6 and the inner bottom wall of the treatment chamber 3, and enters the installation frame 81 along with the through hole 83 and is removed by the activated carbon in the installation frame 81. The screen plate 82 is further processed, thus strengthening the treatment of VOCs waste gas, which can improve the filtering effect and the cleanliness of filtering efficiency.

In the present invention, the drive motor adopts the Y80M1-2 model, the drive motor operates as an existing conventional circuit, and the power supply interface of the drive motor is connected to the power supply system through a switch to realize the rotation control of the drive motor. The circuits and controls involved in the present invention are all existing There are technologies, and details are not repeated here.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation or a specific orientation. construction and operation, and therefore should not be construed as limiting the invention.

The above are only the embodiments of the present invention, and are not intended to limit the scope of the patent of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, All are similarly included in the scope of patent protection of the present invention.

Claims

A VOCs exhaust gas filter, characterized in that, comprising:

The box body (1) is divided into a liquid inlet chamber (2) and a treatment chamber (3) by a fixedly installed partition plate, and the liquid inlet chamber (2) and the treatment chamber (3) are distributed up and down ;

An oxidation mechanism (4), the oxidation mechanism (4) is installed in the box body (1), and the oxidation mechanism (4) comprises a splint (41), a sponge body (42), a through hole (43), an arc plate ( 44) and the liquid flow hole (45), two said splints (41) of the same specification are fixedly installed in the processing chamber (3), and the two ends of the splint (41) are respectively connected with the upper and lower two parts of the processing chamber (3). The cavity walls are fixedly connected, the two splints (41) are provided with a number of evenly distributed through holes (43), and a sponge (42) is fixedly fitted between the two splints (41), and the two splints (41) are The arc-shaped plate (44) is fixedly installed in the liquid inlet chamber (2), and the bottom of the liquid inlet chamber (2) is provided with a liquid flow hole (45) that communicates with the top of the sponge body (42);

A first mounting plate (5), the first mounting plate (5) is fixedly mounted on the inner top wall of the processing chamber (3) and is close to the front end surface of the box body (1), and the front end of the first mounting plate (5) An adsorption mechanism (7) is installed on the surface;

A second mounting plate (6), the second mounting plate (6) is fixedly mounted on the inner top wall of the processing chamber (3) and is close to the rear end surface of the box (1), and the rear of the second mounting plate (6) A filter mechanism (8) is installed on the end face;

The transmission and communication mechanism (9) is installed on the box body (1).
The VOCs exhaust gas filter according to claim 1, wherein the adsorption mechanism (7) comprises a circular casing (71), a stirring rod (72), an air intake hose (73) and an exhaust net (71). 74), the circular casing (71) is fixedly installed on the front end surface of the first mounting plate (5), and a driving motor is fixedly installed at the center of the outer wall of the circular casing (71), and the output end of the driving motor extends Several stirring rods (72) are fixedly installed in the circular casing (71), and two air intake hoses (73) are fixedly installed on the top of the circular casing (71). An exhaust net (74) for exhaust is installed at the bottom of the shaped casing (71).
The VOCs exhaust gas filter according to claim 2, wherein an appropriate amount of activated carbon particles are stored in the circular casing (71), and the diameter of the activated carbon particles is larger than the mesh holes of the exhaust net (74).
The VOCs exhaust gas filter according to claim 1, wherein the filter mechanism (8) comprises a mounting frame (81), an activated carbon mesh plate (82) and a through hole (83), and the mounting frame (81) It is fixedly mounted on the rear end face of the second mounting plate (6), and the other side wall of the mounting frame (81) is fixedly connected with the inner wall of the rear side of the processing chamber (3). Activated carbon mesh plates (82) are assembled, and a plurality of through holes (83) are opened at the bottom of the mounting frame (81).
The VOCs exhaust gas filter according to claim 1, characterized in that, the distance between the first mounting plate (5) and the second mounting plate (6) and the inner bottom wall of the processing chamber (3) is 8-12 cm.
The VOCs exhaust gas filter according to any one of claims 1-4, characterized in that, the transmission mechanism (9) comprises an intake conduit (91), an exhaust conduit (92) and a liquid intake conduit (93), The two air intake ducts (91) are fixedly connected to the air inlet opened on the front end of the box body (1), and the inner wall of the air inlet is fixedly connected to one end of the air intake hose (73). (92) is fixedly installed on the rear end surface of the box body (1), the exhaust duct (92) is above the installation frame (81), and the liquid inlet pipe (93) is fixedly installed on the top of the box body (1).
The VOCs exhaust gas filter according to claim 1, wherein a liquid collecting mechanism (9a) is installed at the bottom of the box body (1), and the liquid collecting mechanism (9a) includes a waste liquid tank (91a) and a drain A liquid pipe (92a), the two side walls of the waste liquid tank (91a) are respectively fixedly connected to the liquid discharge chambers opened on the two side walls of the processing chamber (3) through the liquid discharge pipe (92a).