[0022] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention.
[0023] Such as Figure 1~Figure 4 As shown, a concentrated acid mist purification device provided by an embodiment of the present invention includes a cabinet 1 in which eleven closed and liquid containers are sequentially connected in series, a first container 11 and a second container 12. The liquid in the third container 13, the fourth container 14, the seventh container 17, the eighth container 18, the ninth container 19, the tenth container 20 and the eleventh 21st container is clean water, the fifth container 15 and the sixth container The liquid in the container 16 is an alkaline liquid, and the alkaline liquid is a sodium hydroxide solution with a concentration of 5% to 8%; each container is provided with a connecting plate 112 that divides the container into a large container 110 and a small container 111. The upper and middle parts of the large container 110 and the small container 111 are airtight, and the bottom is connected. The upper side of the small container 111 is provided with at least one air inlet 113, and the upper side of the large container 110 is provided with at least one exhaust port 114. The air outlet 114 and the air inlet 113 between are respectively connected through a duct 24, the air inlet 113 of the first container 11 is communicated with an exhaust gas outlet 22 that discharges concentrated acid mist, the tenth container 20 and the eleventh container A suction pump 23 is connected between 21, the exhaust port 114 of the tenth container 20 is in communication with the suction port (not shown) of the suction pump 23 through a duct 24, and the air outlet (not shown) of the suction pump 23 passes through the duct 24 In communication with the air inlet 114 of the eleventh container 21, the suction pump 23 increases the gas pressure and flow rate in each container, so that the concentrated acid mist can pass through the liquid in each container smoothly, and the processing speed of the concentrated acid mist is increased;
[0024] Such as figure 2 As shown, the large containers 110 of the first container 11 to the tenth container 20 are respectively provided with a pair of first homogenizers 115 that separate the concentrated acid mist from bottom to top, so that the concentrated acid mist is fully contacted with water or alkaline liquid. The second homogenizer 116 and a first demister 117 that separates the mist from the gas in the concentrated acid mist and cannot pass the mist. The first homogenizer 115 is provided with a number of evenly arranged first pores 118. A pore 118 has a diameter of 0.4~0.9mm. The second homogenizer 116 is provided with a number of evenly arranged second pores 1160. The second pore 1160 has a diameter of 0.1~0.3mm. The first demister 117 There are a number of S-shaped first micropores evenly arranged and for gas to pass through and to trap mist. The diameter of the first micropore is 2×10 -10 ~3×10 -10 m;
[0025] Such as Figure 4 As shown, the large container 110 of the eleventh container 21 is sequentially spaced from bottom to top with a pair of third homogenizers 120 that separate the incompletely purified concentrated acid mist. A third homogenizer 120 separates the mist and gas in the concentrated acid mist. The second mist eliminator 121 through which the mist passes, a mesh container 122 for placing molecular sieve 1220, and an activated carbon layer 123. The third homogenizer 120 is provided with a number of uniformly arranged third pores 124. The pore diameter of the pores is 0.4~0.9mm, and the second demister is provided with a number of second micropores that are evenly arranged and allow gas to pass through and trap the mist. The pore diameter of the second micropores is 2×10 -10 ~3×10 -10 m.
[0026] Such as figure 2 As shown, further, the inner top of the large container 110 in the first container 11 to the tenth container 20 is respectively hinged with an automatic cleaner 125 for cleaning the large container 110, and each automatic cleaner 125 is respectively connected to an inlet pipe ( (Not shown) are connected, and the bottoms of the first container 11 to the tenth container 20 are respectively provided with a drainage port (not shown) for draining the waste water after washing in the first container 11 to the tenth container 20.
[0027] Specifically, the air inlet 113 and the air outlet 114 are located at the same height.
[0028] Such as figure 2 As shown, specifically, the clean water in the first container 11, the second container 12, the third container 13, the fourth container 14, the seventh container 17, the eighth container 18, the ninth container 19, and the tenth container 20 The height is located in the middle position between the second homogenizer 166 and the first demister 117.
[0029] Such as image 3 As shown, specifically, the heights of the alkaline liquid in the fifth container 15 and the sixth container 16 are both located in the middle position between the second homogenizer 166 and the first demister 177.
[0030] Such as Figure 4 As shown, specifically, the height of the clean water in the eleventh container 21 is located at an intermediate position between the third homogenizer 120 and the second demister 121.
[0031] Further, the fifth container 15 and the sixth container 16 are provided with an indicator 126 that displays the height of the alkaline liquid in the fifth container 15 and the sixth container 16 respectively. By looking at the indicator 126, you can know that the fifth container 15 and the first 6. The height of the alkaline liquid in the container 16.
[0032] Further, the cabinet 1 is also provided with an automatic dosing device (not shown) for adding alkaline liquid to the fifth container 15 or the sixth container 16, and the fifth container 15 and the sixth container 16 are respectively provided with a Automatic probe (not shown), when the automatic probe detects that the pH value of the alkaline liquid in the fifth container 15 or the sixth container 16 has decreased, the metering pump (not shown) connected to the automatic probe calculates the need to add alkali For the amount of sexual liquid, the automatic probe sends a signal to control the automatic dosing device to add an appropriate amount of alkaline liquid to the fifth container 15 or the sixth container 16.
[0033] Further, the cross section of the first micropore 119 and the second micropore 1210 is S-shaped. The S-shaped first micropore 119 and the second micropore 1210 can separate the mist and the gas in the concentrated acid mist. The first micropores 119 and the second micropores 1210 prevent the accumulation of water droplets from flowing into the clean water.
[0034] The working principle of the present invention is as follows: firstly, the air suction pump 23 is turned on, and the circulating air flow generated by the air suction pump 23 draws the concentrated acid mist discharged from the exhaust port 22 into the first container 11 containing clean water. In the small container 111 of the container 11, the concentrated acid mist circulates from the upper end of the small container 111 to the bottom of the small container 111, passing through the first fine hole 118 on the first homogenizer 115 provided at the bottom of the large container 110 of the first container 11 However, the first pore 118 blocks the particles and impurities in the concentrated acid mist at the bottom of the first container 11. The clear water in the first container 11 can make the water-soluble organic substances in the concentrated acid mist dissolve in the water, and the first The pores 118 preliminarily disperse and diffuse the concentrated acid mist, and then precisely diffuse it through the second pore 1160 of the second homogenizer 116, so that the concentrated acid mist and clean water are fully contacted, and the clean water can clean the concentrated acid mist in all directions, reducing the concentration. The concentration of the acid mist is separated from the gas in the concentrated acid mist by the first microhole 119 of the first demister 117. The mist is blocked by the first microhole 119 to form water droplets and flows into the clean water. The acid gas passes through the first microhole 119. A demister 117 enters the second container 12 from the exhaust port 114 of the first container 11. The clean water in the second container 12 further cleans the acid gas and reduces the acid gas concentration. The clean water in the second container 12~the fourth container 14 is in full contact, and the clean water continuously cleans the acid gas in all directions, which can reduce the concentration of the acid gas by about 50%; then, the acid gas and the fifth container 15 and the sixth container The alkaline liquid in the container 16 is fully contacted to carry out a neutralization reaction, and the acid gas concentration is reduced by about 80%; then the acid gas is fully contacted with the clean water in the seventh container 17 to the tenth container 20 to extend the treatment Over time, the clean water continues to clean the acid gas in all directions, reducing the concentration of the acid gas by about 98%. Finally, the molecular sieve 1220 and the activated carbon layer 123 in the eleventh container 21 absorb the remaining small amount of acid gas and deodorize it. , And finally discharged from the air outlet of the suction pump 23.
[0035] The invention provides a concentrated acid mist purification device, in which eleven containers are connected in series in the cabinet 1, and a high-speed air flow is generated by an air pump 23 to sequentially dissolve the concentrated acid mist into the clear water or alkaline liquid in the eleven containers Among them, the concentrated acid mist first passes through the filtering and splitting of the first homogenizer 115 and the second homogenizer 116 in the first container 11 to the fourth container 14 to dissolve the pollutants in the concentrated acid mist into the clean water. It can be contacted with concentrated acid mist in all directions, prolonging the treatment time in clean water, can effectively remove particulate matter in the concentrated acid mist and dissolve water-soluble organic substances in water, and the first demister 117 will initially purify the acid The gas is separated from the mist, and the acid gas passes through the alkaline liquid in the fifth container 15 and the sixth container 16 in a full-bath type, by the first homogenizer 115 and the second equalizer 115 in the fifth container 15 and the sixth container 16. The flow equalizer 116 divides the flow, which greatly increases the contact area of the acid gas and the alkaline liquid. The acid gas fully contacts and reacts with the alkaline liquid, improves the absorption efficiency of the alkaline liquid, and realizes the dilution, neutralization and reduction of the acid gas. For the purpose of acid gas concentration, the flow is divided by the first and second equalizers 115 and 116 in the seventh vessel 17 to the tenth vessel 20, and the acid gas is fully integrated with the clean water in the seventh vessel 17 to the tenth vessel 20. The azimuth contact can further purify the acid mist gas. Finally, the molecular sieve 1220 and the activated carbon layer 123 in the eleventh container 21 absorb and deodorize the remaining trace acid gas, which realizes the thorough purification of the concentrated acid mist and makes the purified acidity. The gas meets national emission standards.
[0036] The above are the preferred embodiments of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications are also considered This is the protection scope of the present invention.
