A haze treatment device and method

Abstract

The present invention relates to the field of haze treatment, and specifically to a haze treatment device and method, comprising a compressor fan, a filter screen is arranged in the compressor fan, and a mixing tank, a solidification tank and a colorimetric inspection device are sequentially connected to the compressor fan through a pipeline; the mixing tank is sequentially provided with an atomizing spray device, a filter screen and a liquid storage pool from top to bottom, the solidification tank is provided with a refrigerator, a spherical particle mold fixed on the inner wall of the solidification tank and a liquid storage cavity and an inclined plate at the bottom, the colorimetric inspection device is internally provided with a conveying device and a colorimeter, and the colorimetric inspection device is respectively connected with a sublimation tank and a liquefaction tank. The present invention allows haze pollutants to be converted between the three forms of gas, liquid and solid, which is convenient for the separation of haze pollutants.

Description

Technical Field

[0001] The present invention relates to the field of haze treatment, and in particular to a haze treatment device and method. Background Art

[0002] Haze is a combination of fog and smog. Haze is common in cities. Many areas in China combine fog with smog as a disastrous weather phenomenon for early warning and forecasting, collectively referred to as smog weather.

[0003] In order to improve the air quality, pollutants in the air need to be treated. However, with the participation of human activities, the natural purification process is relatively slow, so it is necessary to introduce an air treatment device. Most of the existing air treatment devices only filter through the filter and then discharge. However, when the filter is used for too long and the filtering effect is reduced, the above operation is still performed. The haze device will discharge when it does not meet the emission standards, resulting in low haze treatment efficiency in the air. Chinese patent CN108261894A discloses a haze purification device and method. The invention separates haze pollutants by using a sorting device and discharges qualified particles, but the separation process of crushing solids into particles by the sorting device is too complicated. Summary of the invention

[0004] In order to solve the disadvantages of the complicated and cumbersome haze treatment process in the prior art, the present invention provides a haze treatment device and method.

[0005] To achieve the above object, the present invention adopts the following technical solutions:

[0006] A haze treatment device comprises a compression fan, a filter screen is arranged in the compression fan, a mixing tank, a solidification tank and a colorimetric inspection device are connected in sequence through pipelines behind the compression fan; the mixing tank comprises an atomizing spray device, a filter screen and a liquid storage pool arranged in sequence from top to bottom, the solidification tank is provided with a refrigerator, a spherical particle mold and a liquid storage cavity fixed on the inner wall of the solidification tank and an inclined plate located at the bottom, a conveying device and a colorimeter are arranged inside the colorimetric inspection device, and a sublimation tank and a liquefaction tank are respectively connected behind the colorimetric inspection device.

[0007] Furthermore, the pore size of the filter is 100 μm.

[0008] Furthermore, the atomizing spray device is composed of a nozzle, an ultrasonic atomizer and a pure water tank, the outlet of the pure water tank is connected to the ultrasonic atomizer, and the ultrasonic atomizer is connected to the nozzle through a water pipe.

[0009] Furthermore, the spherical particle mold consists of a left hemispherical mold and a right hemispherical mold, the liquid storage cavity is fixedly connected to the left hemispherical mold and a plurality of liquid inlet needles are arranged between the two, and the right hemispherical mold is hinged to the top of the curing tank.

[0010] Furthermore, the number and positions of the liquid inlet needles correspond one-to-one to the hemispherical grooves in the left hemispherical mold, the left hemispherical mold is provided with a waist-shaped groove corresponding to the waist-shaped block provided on the right hemispherical mold, the right hemispherical mold is provided with a limiting block, and an arc-shaped groove is provided on the front inner wall of the curing tank.

[0011] Furthermore, the colorimetric inspection device is a circular light-shielding cylinder, which includes an inner and outer double-layer tube, the outermost tube is a black light-shielding tube, and the inner tube is a transparent tube. The conveying device is arranged in the inner tube, including a first conveyor belt and a second conveyor belt, wherein the second conveyor belt is located in the middle of the upper and lower layers of the first conveyor belt, and the first conveyor belt and the second conveyor belt are combined in an X shape. The first conveyor belt is obliquely arranged with the left side higher and the right side lower, and is evenly provided with small holes, and a controllable opening bottom plate is arranged under the small holes. A colorimeter is arranged directly above the intersection of the first conveyor belt and the second conveyor belt, and the colorimeter includes a light irradiation probe and a display. The first conveyor belt is connected to the sublimation tank, and the second conveyor belt is connected to the liquefaction tank.

[0012] Furthermore, a heating and pressurizing device is provided in the sublimation tank.

[0013] Furthermore, a heating device and a filtering device are provided in the liquefaction tank, the upper limit of the heating temperature is 30° C., the filtering device comprises a peristaltic pump and a nanofiltration membrane, the nanofiltration membrane is provided at the outlet of the filtering device, and the pore size is 1 to 2 nm.

[0014] The present invention also provides a method for treating a haze device, comprising the following steps:

[0015] A. The haze pollutants are compressed and filtered by the compressor fan and sent to the mixing tank;

[0016] B. The haze pollutants after preliminary filtration are mixed and filtered with the atomized water in the mixing tank and sent to the solidification tank;

[0017] C. The mixed liquid solidifies into spherical particles in the solidification tank and is sent to the colorimetric inspection device for identification. The identified spherical particles are sent to the sublimation tank and liquefaction tank respectively;

[0018] D. The sublimation tank sublimates the spherical particles and then discharges them into the atmosphere, and the liquefaction tank liquefies the spherical particles and then filters them through a filter membrane before discharge.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. The present invention allows haze pollutants to be converted between three forms: gaseous, liquid and solid. A filter screen and a filter-like water outlet device are respectively arranged in the compression fan and the mixing tank to facilitate the separation of haze pollutants. A spherical particle mold plate is arranged in the solidification tank to facilitate the solidification of the mixed liquid into particles of uniform size, and also facilitate colorimetric identification, thereby distinguishing qualified and unqualified solidified particles, and controlling and distinguishing the dischargeable particles and the non-dischargeable particles to enter different post-processing devices.

[0021] 2. The present invention sets a liquefaction device after the colorimetric inspection device, heats and liquefies the unqualified solidified particles, and then further filters them, and finally discharges them into the natural environment, thereby reducing the pressure on the environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a flow chart of the haze treatment device of the present invention;

[0023] Figure 2 This is the internal structure diagram of the mixing tank;

[0024] Figure 3 This is one of the internal structure diagrams of the curing tank;

[0025] Figure 4 This is the second diagram of the internal structure of the curing tank;

[0026] Figure 5 It is a front view of the hemispherical mold;

[0027] Figure 6 This is a structural diagram of the first conveyor belt and the second conveyor belt.

[0028] Markings in the accompanying drawings: 1 is a compression fan, 2 is a mixing tank, 20 is a nozzle, 21 is an ultrasonic atomizer, 22 is a pure water tank, 23 is an air inlet, 24 is a filter, 25 is a liquid storage pool, 26 is a liquid outlet, 3 is a solidification tank, 30 is a liquid storage cavity, 31 is a liquid inlet needle, 32 is a left hemisphere mold, 321 is a hemisphere groove, 322 is a waist-shaped groove, 33 is a right hemisphere mold, 34 is a limit block, 4 is a colorimetry device, 41 is a first conveyor belt, 42 is a small hole, 43 is a second conveyor belt, 5 is a sublimation tank, and 6 is a liquefaction tank. DETAILED DESCRIPTION

[0029] The specific implementation modes of the present invention are further described in detail below in conjunction with the accompanying drawings.

[0030] A haze treatment device, such as Figures 1 to 6As shown, it includes a compressor fan 1, a filter screen 24 is arranged in the compressor fan 1, the pore size of the filter screen 24 is 100μm, the compressor fan 1 is connected to the mixing tank 2, an air inlet 23 is arranged on the mixing tank 2, the mixing tank 2 includes an atomizing spray device, the atomizing spray device is arranged at the upper part of the mixing tank 2, the atomizing spray device is composed of a plurality of nozzles 20, an ultrasonic atomizer 21 and a pure water tank 22, the outlet of the pure water tank 22 is connected to the ultrasonic atomizer 21, the ultrasonic atomizer 21 is connected to the nozzle 20 through a water pipe, the pure water in the pure water tank 22 is atomized by the ultrasonic atomizer 21 and then sent to the nozzle 20 in the mixing tank 2 through the water pipe and sprayed from top to bottom in the mixing tank 2, a filter screen 24 is arranged in the middle of the mixing tank 2, a liquid storage pool 25 is arranged under the filter screen 24, a liquid outlet 26 is arranged on the side of the liquid storage pool 25, and the liquid outlet 26 is connected to the curing tank 3 through a pipeline.

[0031] The pipe connected to the liquid outlet 26 penetrates into the side wall of the solidification tank 3 and is connected to the square liquid storage chamber 30. The angle between the liquid storage chamber 30 and the horizontal plane is 45°~75°. The liquid storage chamber 30 is fixedly connected to the left hemispherical mold 32. A plurality of liquid inlet needles 31 are arranged between the liquid storage chamber 30 and the left hemispherical mold 32. The positions and numbers of the liquid inlet needles 31 correspond one to one with the hemispherical grooves 321 in the left hemispherical mold 32. One end of the liquid inlet needle 31 is inserted into the liquid storage chamber 30 and the other end is inserted into the hemispherical groove 321, so as to control the mixed liquid in the liquid storage chamber 30 to flow into the hemispherical mold. The volume of the liquid inlet needle 31 is determined according to the size of the spherical particles. For example, 5mL and 10mL liquid inlet needles 31 can be selected. The specification selected in this embodiment is 5mL. The left hemispherical mold 32 is snap-fitted with the right hemispherical mold 33, and the hemispherical grooves 321 on the left hemispherical mold 32 and the right hemispherical mold 33 correspond one to one; the upper part of the right hemispherical mold 33 is hinged to the top of the curing tank 3 and driven by a motor, and a limiting block 34 is provided on the right hemispherical mold 33. Correspondingly, an arc-shaped groove is provided on the side wall of the curing tank 3, and the limiting block 34 is inserted into the arc-shaped groove, which is used to limit the movement trajectory when the motor drives the right hemispherical mold 33 to move. Furthermore, the left hemisphere mold 32 is also provided with a waist-shaped groove 322, and correspondingly, the right hemisphere mold 33 is provided with a raised waist-shaped block. When the motor drives the right hemisphere mold 33 to rotate clockwise, the waist-shaped block of the right hemisphere mold 33 is embedded in the waist-shaped groove 322 of the left hemisphere mold 32, which plays a fixing and sealing effect. The solidification tank 3 is provided with a refrigeration system with a temperature range of -30°C to -50°C. The bottom of the solidification tank 3 is also provided with an inclined plate with a higher left and a lower right. The angle of the inclined plate is 5° to 20°, preferably 10°; a particle outlet is provided at the connection between the right side of the inclined plate and the inner wall of the solidification tank 3, and is connected to the colorimetric inspection device 4 through a pipeline.

[0032] The colorimetric inspection device 4 is a circular light-shielding cylinder, which includes an inner and outer double-layer tube, the outermost tube is a black light-shielding tube, the inner tube is a transparent tube, and two layers of conveyor belts are arranged at the bottom of the inner tube. The conveying device is arranged on the inner tube, including a first conveyor belt 41 and a second conveyor belt 43, wherein the second conveyor belt 43 is located between the upper and lower layers of the first conveyor belt 41, and the first conveyor belt 41 and the second conveyor belt 43 are combined in an X shape, and a colorimeter is arranged directly above the intersection, the colorimeter includes a light irradiation probe and a display, the light irradiation probe is fixed on the inner wall of the transparent tube, and the display is arranged on the outer wall of the black light-shielding tube; the first conveyor belt 41 is inclined at 5° with the left higher and the right lower, and small holes 42 of the same aperture are arranged at equal distances, and a bottom plate is arranged under the small holes 42, and the bottom plate is connected to a control system, and its opening and closing can be controlled by colorimetric sensing. The first conveyor belt 41 is connected to the pipeline leading to the sublimation tank 5, and the second conveyor belt 43 is connected to the pipeline leading to the liquefaction tank 6. When the light source irradiates the spherical particles on the first conveyor belt 41 and the chromaticity value on the chromaticity display does not exceed the standard, the particles are conveyed into the sublimation tank 5 by the first conveyor belt 41. When the light source irradiates the particles on the first conveyor belt 41 and the chromaticity value on the chromaticity display exceeds the standard, the bottom plate of the small hole 42 where the corresponding particles are located is controlled to open, so that the particles fall on the second conveyor belt 43 and are conveyed to the liquefaction tank 6. The heating and pressurizing device set in the sublimation tank 5 is a microwave heating machine, which quickly raises the pressure in the sublimation tank 5 to about 600Pa and the temperature to about 10°C. The liquefaction tank 6 is provided with a heating device and a filtering device. The heating method adopts electric heating, and the upper limit of the heating temperature is 30°C. The filtering device includes a peristaltic pump and a nanofiltration membrane. The peristaltic pump has the advantages of high stability and precision; the nanofiltration membrane is set at the outlet of the filtering device, and the pore size is 1-2nm.

[0033] The working process is as follows:

[0034] The haze pollutants are compressed and preliminarily filtered by the compressor fan 1, and then contacted with the atomized pure water from the air inlet 23 of the mixing tank 2 to the mixing tank 2. The haze pollutants are further mixed with the atomized pure water through diffusion and sedimentation, and fall to the bottom of the mixing tank 2. They are collected into the liquid storage pool 25 through the bottom filter 24. The mixed liquid in the liquid storage pool 25 flows into the liquid storage chamber 30 in the solidification tank 3 through the liquid outlet 26 and the pipeline. At this time, the solidification tank 3 is as follows. Figure 4 , the right hemisphere mold 33 and the left hemisphere mold 32 are in an open and closed state, such as Figure 4 Turn on the motor, the motor drives the right hemispherical mold 33 to rotate clockwise, gradually approaching and engaging the left hemispherical mold 32, so that the left and right hemispherical grooves 321 form a closed spherical groove, such as Figure 3As shown; turn off the motor, and send the mixed liquid in the liquid storage chamber 30 to each spherical groove through the liquid inlet needle 31. The refrigeration system reduces the temperature in the solidification tank 3 to -30℃~-50℃, and the mixed liquid solidifies into spherical particles. After the solidification is completed, the motor drives the right hemisphere mold 33 to rotate counterclockwise and separate from the left hemisphere mold 32. The solidified particles fall onto the inclined plate due to gravity and are sent to the colorimetric inspection device 4 through the pipe at the lowest point of the inclined plate. The spherical particles are sent to the first conveyor belt 41 of the colorimetric inspection device 4. Due to the inclined setting, the particles roll to the corresponding small holes 42 and stay there for 10 seconds. The colorimeter begins to irradiate and identify the spherical particles. Spherical particles with a chromaticity not exceeding 5° are qualified particles, and spherical particles with a chromaticity greater than 5° are unqualified particles. The qualified spherical particles are directly sent to the sublimation tank 5 for sublimation and finally discharged into the atmosphere; when the display of the colorimeter shows that the spherical particles are unqualified, the corresponding small holes 42 on the bottom plate of the first conveyor belt 41 are opened according to the colorimetric sensing control, so that the particles fall onto the second conveyor belt 43, and then are sent to the liquefaction tank 6 for liquefaction. The liquefied particles are filtered by a peristaltic pump and a nanofiltration membrane and then discharged into the sewer pipe.

[0035] It should be noted that the above embodiments are intended to deepen the understanding of the present invention and are only used to explain the present invention, and do not constitute a limitation on the scope of protection of the present invention. Various changes can be made within the knowledge of ordinary technicians in this field without departing from the purpose of the present invention.

Claims

1. A haze treatment device, comprising a compressor fan (1), wherein a filter screen (24) is arranged in the compressor fan (1), characterized in that: The compressor fan (1) is connected to a mixing tank (2), a solidification tank (3) and a colorimetric inspection device (4) in sequence through pipelines; the mixing tank (2) comprises an atomizing spray device, a filter (24) and a liquid storage tank (25) arranged in sequence from top to bottom; the solidification tank (3) is provided with a refrigerator, a spherical particle mold fixed on the inner wall of the solidification tank (3) and a liquid storage chamber (30) and an inclined plate located at the bottom; the colorimetric inspection device (4) is provided with a conveying device and a colorimeter; and the colorimetric inspection device (4) is connected to a sublimation tank (5) and a liquefaction tank (6) in sequence; The spherical particle mold is composed of a left hemispherical mold (32) and a right hemispherical mold (33); the liquid storage cavity (30) is fixedly connected to the left hemispherical mold (32) and a plurality of liquid inlet needles (31) are arranged between the two; the right hemispherical mold (33) is hinged to the top of the solidification tank (3); and the angle between the liquid storage cavity (30) and the horizontal plane is 45° to 75°; The number and position of the liquid inlet needles (31) correspond one-to-one to the hemispherical grooves (321) in the left hemispherical mold (32); the left hemispherical mold (32) is provided with a waist-shaped groove (322) corresponding to the waist-shaped block provided on the right hemispherical mold (33); the right hemispherical mold (33) is provided with a limit block (34); and the inner wall of the curing tank (3) is provided with an arc-shaped groove; The colorimetric inspection device (4) is a circular light-shielding cylinder, the circular light-shielding cylinder comprises an inner and outer double-layer tube, the outermost tube is a black light-shielding tube, and the inner tube is a transparent tube. The conveying device is arranged on the inner tube and comprises a first conveyor belt (41) and a second conveyor belt (43), wherein the second conveyor belt (43) is located between the upper and lower layers of the first conveyor belt (41), the first conveyor belt (41) and the second conveyor belt (43) are combined in an X-shape, the first conveyor belt (41) is arranged obliquely with the left side higher and the right side lower, and is evenly provided with small holes (42), a bottom plate that can be controlled to open is arranged under the small holes (42), a colorimeter is arranged directly above the intersection of the first conveyor belt (41) and the second conveyor belt (43), the colorimeter comprises a light irradiation probe and a display, the first conveyor belt (41) is connected to the sublimation tank (5), and the second conveyor belt (43) is connected to the liquefaction tank (6).

2. A haze treatment device according to claim 1, characterized in that: The pore size of the filter (24) is 100 μm.

3. The haze treatment device according to claim 1, characterized in that: The atomizing spray device is composed of a nozzle (20), an ultrasonic atomizer (21) and a pure water tank (22); the outlet of the pure water tank (22) is connected to the ultrasonic atomizer (21), and the ultrasonic atomizer (21) is connected to the nozzle (20) via a water pipe.

4. The haze treatment device according to claim 1, characterized in that: The sublimation tank (5) is provided with a heating and pressurizing device.

5. The haze treatment device according to claim 1, characterized in that: The liquefaction tank (6) is provided with a heating device and a filtering device, the upper limit of the heating temperature is 30° C. The filtering device comprises a peristaltic pump and a nanofiltration membrane, and the nanofiltration membrane is provided at the outlet of the filtering device and has a pore size of 1 to 2 nm.

6. A method for using the haze treatment device according to any one of claims 1 to 5, characterized in that: The following steps are involved: A. The haze pollutants are compressed and filtered by the compressor fan (1) and sent to the mixing tank (2); B. The haze pollutants after preliminary filtration are mixed and filtered with the atomized water in the mixing tank (2), and then sent to the solidification tank (3); C. The mixed liquid solidifies into spherical particles in the solidification tank (3) and is sent to the colorimetric inspection device (4) for identification. The identified spherical particles are sent to the sublimation tank (5) and the liquefaction tank (6) respectively; D. The sublimation tank (5) sublimates the spherical particles and then discharges them into the atmosphere, and the liquefaction tank (6) liquefies the spherical particles and then filters them through a filter membrane before discharge.

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