Waste gas filter and electrolytic bath

Abstract

The waste gas filter is used for treating waste gas released by the electrolytic bath, the electrolytic bath comprises a tail plate and a filtering mechanism, a liquid inlet and a liquid outlet are formed in the two sides of the tail plate respectively, and the filtering mechanism comprises a liquid discharging pipe, a filtering box, a spraying end and a purifying end; a liquid outlet is formed in the liquid outlet, a liquid discharge pipe is arranged in the liquid outlet, the liquid discharge pipe is communicated with the liquid outlet, a filter box is arranged on the liquid discharge pipe in a communicated mode, a spraying end and a purifying end which are used for filtering gas are arranged in the filter box, and a gas outlet is formed in the tail end of the filter box. The tail plate has the beneficial effects that the technical problems that chlorine is discharged along with waste liquid due to the fact that a corresponding chlorine filtering mechanism is not arranged on the tail plate of electrolytic bath equipment in the prior art, and the atmosphere is easily polluted after unfiltered chlorine is discharged are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of electrolytic cell equipment, in particular to an exhaust gas filter and an electrolytic cell. Background Art

[0002] In existing production technology, the commonly used electrolytic cell is an open electrolytic cell. Due to the slow flow rate of the electrolyte, it is difficult to ensure a uniform flow rate of the liquid, which is prone to uneven flow and dead corners. This not only causes uneven current distribution on the electrodes, resulting in a decrease in electrolysis current density, but also due to the slow flow rate, the laminar layer on the electrode surface is wider, resulting in a lower concentration of electrolyte on the electrode plate surface, which leads to concentration polarization, an increase in the cell voltage, and an increased chance of side reactions, thereby limiting the increase in current density during electrolysis. In electrolysis projects, the electrolytic cell is a key investment, especially the area of ​​the electrodes, which increases the cost of the electrolytic cell. Therefore, under the condition of ensuring a certain scale of equipment, increasing unit production capacity and reducing the electrode area are the key to reducing investment.

[0003] Existing electrolytic cell equipment will discharge a mixture of waste liquid and waste gas after electrolysis. There is no corresponding filtering mechanism on the tail plate, resulting in the direct discharge of waste gas. The waste gas contains toxic gas chlorine, and the unfiltered gas is directly discharged, seriously affecting the safety of workers. Utility Model Content

[0004] The purpose of the present invention is to overcome the above technical deficiencies and provide an exhaust gas filter and an electrolytic cell to solve the technical problem that in the prior art, the tail plate of the electrolytic cell equipment is not provided with a corresponding chlorine filtering mechanism, resulting in the discharge of chlorine along with the waste liquid. After the unfiltered chlorine is discharged, it is easy to cause pollution to the atmosphere.

[0005] In order to achieve the above technical purpose, the present invention adopts the following technical solutions:

[0006] In a first aspect, the present invention provides an exhaust gas filter and an electrolytic cell for treating exhaust gas released by the electrolytic cell. The electrolytic cell includes a tail plate, and a liquid inlet and a liquid outlet are respectively provided on both sides of the tail plate.

[0007] The filtering mechanism includes a drain pipe, a filter box, a spray end and a purification end; the drain pipe is connected to the liquid outlet, and the drain pipe is connected to the filter box, the filter box is provided with a spray end and a purification end for filtering gas, and the end of the filter box is provided with an air outlet.

[0008] In some embodiments, a plurality of screw holes are provided on the outer side of the tail plate and circumferentially around the liquid outlet, a communication area is provided between the liquid inlet and the liquid outlet, and grooves are provided on the liquid inlet and the liquid outlet.

[0009] In some embodiments, a mounting plate is provided at one end of the drain pipe, a plurality of mounting holes cooperating with the screw holes are opened on the mounting plate, and one end of the drain pipe is connected to the liquid outlet.

[0010] In some embodiments, a first communication hole is formed between the drain pipe and the filter box.

[0011] In some embodiments, a partition is horizontally installed inside the filter box, and the partition divides the inside of the filter box into a water storage area and a purification area. A second connecting hole is provided between the water storage area and the purification area.

[0012] In some embodiments, a spray end is provided between the water storage area and the purification area, and a drain outlet is provided on the outside of the filter box, and the drain outlet is communicated with the water storage area.

[0013] In some embodiments, the spray end includes a pump body, a water pipe and a spray plate; one end of the water pipe extends into the water storage area, and the other end extends into the purification area, and a pump body is installed on the water pipe, and the end of the water pipe is connected to the spray plate, and the spray plate is located above the second connecting hole.

[0014] In some embodiments, guide plates are obliquely provided on both sides of the second connecting hole.

[0015] In some embodiments, the purification end includes a first filter screen and a second filter screen; the first filter screen and the second filter screen are installed equidistantly in the filter box.

[0016] Compared with the prior art, the utility model provides an exhaust gas filter and an electrolytic cell, in which exhaust gas and waste liquid enter the tail plate from the liquid inlet and enter the drain pipe through the liquid outlet. Since a filter box is provided on the drain pipe, the gas enters the filter box and is sprayed and filtered by the spray end. The gas is then purified for a second time by the purification end and then discharged outwardly from the gas outlet, thereby greatly improving the purification efficiency of the exhaust gas and avoiding direct discharge of the exhaust gas without filtration to pollute the environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a front view of an electrolytic cell tail plate exhaust gas filter provided by an embodiment of the utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of the filter mechanism of the electrolytic cell tail plate exhaust gas filter provided by an embodiment of the utility model;

[0019] Figure 3 This is a side view of an electrolytic cell tail plate exhaust gas filter provided by an embodiment of the utility model;

[0020] Figure 4 It is a schematic diagram of the back side of the exhaust gas filter of the tail plate of the electrolytic cell provided by an embodiment of the present utility model.

[0021] Explanation of the accompanying drawings: 1. Tail plate; 11. Liquid inlet; 12. Liquid outlet; 121. Screw hole; 13. Communication area; 14. Groove; 2. Filter mechanism; 21. Drain pipe; 211. Mounting plate; 212. Mounting hole; 22. Filter box; 221. First communication hole; 222. Partition; 223. Water storage area; 224. Purification area; 225. Second communication hole; 23. Spray end; 231. Pump body; 232. Water guide pipe; 233. Spray plate; 24. Purification end; 241. First filter screen; 242. Second filter screen; 25. Air outlet; 26. Drain outlet. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0023] In order to solve the technical problem that in the prior art, there is no corresponding chlorine filtering mechanism on the tail plate of the electrolytic cell equipment, which causes chlorine to be discharged together with the waste liquid, and the unfiltered chlorine is easily polluted to the atmosphere after being discharged, the utility model provides an exhaust gas filter and an electrolytic cell, which can filter the exhaust gas and avoid direct discharge and environmental pollution.

[0024] It should be noted that the electrolytic cell tail plate exhaust gas filter described in the present invention is used for but not limited to electrolytic cell equipment, etc. For the convenience of explanation, in the present invention, only the electrolytic cell tail plate exhaust gas filter applied to electrolytic cell equipment is used as an example for explanation, and the principle of applying the electrolytic cell tail plate exhaust gas filter to other types of equipment is essentially the same as the principle of applying it to electrolytic cell equipment, which will not be repeated here.

[0025] See also Figure 1 , Figure 1This is a structural schematic diagram of the exhaust gas filter of the electrolytic cell tail plate in one embodiment of the present invention. The exhaust gas filter is used to treat the exhaust gas released by the electrolytic cell. The electrolytic cell includes a tail plate 1 and a filtering mechanism 2. A liquid inlet 11 and a liquid outlet 12 are respectively provided on both sides of the tail plate 1. A connecting area 13 is provided between the liquid inlet 11 and the liquid outlet 12, and a groove 14 is provided on the liquid inlet 11 and the liquid outlet 12; the filtering mechanism 2 includes a drain pipe 21, a filter box 22, a spray end 23 and a purification end 24; the drain pipe 21 is connected to the liquid outlet 12, and the drain pipe 21 is connected to the filter box 22, and the filter box 22 is provided with a spray end 23 and a purification end 24 for filtering gas, and an air outlet 25 is provided at the end of the filter box 22.

[0026] In this embodiment, the exhaust gas and waste liquid enter the communication area 13 of the tail plate 1 from the liquid inlet 11, and enter the drain pipe 21 through the liquid outlet 12. Since the filter box 22 is connected to the drain pipe 21, the gas enters the filter box 22 and is sprayed and filtered by the spray end 23. The gas is then purified for a second time by the purification end 24 and then discharged outwardly from the gas outlet 25, thereby greatly improving the purification efficiency of the exhaust gas and avoiding direct discharge of the exhaust gas without filtration, which causes pollution to the environment.

[0027] In one embodiment, see Figure 2-4 In order to improve the installation efficiency of the drain pipe 21, a plurality of screw holes 121 are opened on the outer side of the tail plate 1 and circumferentially around the liquid outlet 12. A mounting plate 211 is provided at one end of the drain pipe 21. A plurality of mounting holes 212 that match the screw holes 121 are opened on the mounting plate 211. One end of the drain pipe 21 is connected to the liquid outlet 12.

[0028] In this embodiment, three screw holes 121 are formed on the outer side of the tail plate 1 to facilitate cooperation with the three mounting holes 212 on the mounting plate 211, thereby enabling the mounting plate 211 to be connected to the tail plate 1 and the drain pipe 21 to be connected to the liquid outlet 12, so as to facilitate the discharge of liquid and gas together.

[0029] In one embodiment, see Figure 3 In order to improve the utilization efficiency of the internal space of the filter box 22, a first connecting hole 221 is provided between the drain pipe 21 and the filter box 22, and a partition 222 is horizontally installed inside the filter box 22. The partition 222 divides the interior of the filter box 22 into a water storage area 223 and a purification area 224. A second connecting hole 225 is provided between the water storage area 223 and the purification area 224, and a spray end 23 is provided between the water storage area 223 and the purification area 224.

[0030] In this embodiment, a first connecting hole 221 is provided on the drain pipe 21 and the filter box 22 to facilitate the entry of gas into the drain pipe 21. Secondly, a partition 222 is provided in the filter box 22 to separate the internal space of the filter box 22 so that a neutralizing liquid is stored in the water storage area 223 and is sprayed in the purification area 224. The neutralizing liquid is an alkaline solution, such as sodium hydroxide. When the alkaline solution comes into contact with the chlorine in the exhaust gas, a neutralization reaction will occur and corresponding salts and hypochlorites will be generated.

[0031] In one embodiment, see Figure 1-3 In order to improve the purification efficiency of the device for exhaust gas, the spray end 23 includes a pump body 231, a water pipe 232 and a spray plate 233; one end of the water pipe 232 extends into the water storage area 223, and the other end extends into the purification area 224, and the pump body 231 is installed on the water pipe 232, and the end of the water pipe 232 is connected to the spray plate 233, and the spray plate 233 is located above the second connecting hole 225. Guide plates are obliquely arranged on both sides of the second connecting hole 225, and the purification end 24 includes a first filter screen 241 and a second filter screen 242; the first filter screen 241 and the second filter screen 242 are equidistantly installed in the filter box 22, and a drain outlet 26 is opened on the outside of the filter box 22, and the drain outlet 26 is connected to the water storage area 223.

[0032] The neutralizing liquid stored in the water storage area 223 is extracted through the cooperation of the water conduit 232 and the pump body 231, and is sprayed into the purification area 224 through the circular spray plate 233 for contact with the gas. A second connecting hole 225 is set in the purification area 224 and the water storage area 223, and a bamboo charcoal filter is installed in the second connecting hole 225 to filter the reacted liquid so that it can be used for a second time, thereby achieving a better spraying effect. The gas after contacting the agent floats toward the air outlet 25, and is filtered through the first filter 241 and the second filter 242 layer by layer before being discharged to the outside.

[0033] In order to better understand the present invention, the following Figures 1 to 4The technical solution of the present invention is described in detail: the waste liquid enters the connecting area 13 of the tail plate 1 from the liquid inlet 11, and is finally discharged from the liquid outlet 12 to the inside of the drain pipe 21, wherein a groove 14 is provided at the liquid outlet 12, which can prevent the flow rate in the cavity from being greater than the flow rate of the liquid outlet 12, thereby preventing the occurrence of suffocation. Secondly, after the waste liquid enters the drain pipe 21, the waste gas enters the filter box 22 from the first connecting hole 221, and finally enters the purification area 224. Through the cooperation of the pump body 231 and the water guide pipe 232, the neutralizing liquid inside the water storage area 223 is extracted, and the waste gas is sprayed and neutralized by the spray plate 233. The gas after spraying contacts the first filter screen 241 and the second filter screen 242, and is finally discharged outward from the air outlet 25, avoiding direct discharge. A drain port 26 is provided on the filter box 22 for discharging the neutralized liquid after use, and a water inlet is also provided on the front of the filter box 22 for adding neutralizing liquid.

[0034] The specific embodiments of the present invention described above do not limit the scope of protection of the present invention. Any other corresponding changes and modifications made based on the technical concept of the present invention should be included in the scope of protection of the claims of the present invention.

Claims

1. An exhaust gas filter for treating exhaust gas released by an electrolytic cell, wherein the electrolytic cell comprises a tail plate, and a liquid inlet and a liquid outlet are respectively opened on both sides of the tail plate, characterized in that: The filtering mechanism includes a drain pipe, a filter box, a spray end and a purification end; the drain pipe is connected to the liquid outlet, and the drain pipe is connected to the filter box, the filter box is provided with a spray end and a purification end for filtering gas, and the end of the filter box is provided with an air outlet.

2. The exhaust gas filter according to claim 1, characterized in that: A plurality of screw holes are provided on the outer side of the tail plate and in the circumferential direction of the outer periphery of the liquid outlet. A communication area is provided between the liquid inlet and the liquid outlet. Grooves are provided on the liquid inlet and the liquid outlet.

3. The exhaust gas filter according to claim 2, characterized in that: One end of the liquid discharge pipe is provided with a mounting plate, and the mounting plate is provided with a plurality of mounting holes that match the screw holes. One end of the liquid discharge pipe is communicated with the liquid outlet.

4. The exhaust gas filter according to claim 1, characterized in that: A first communicating hole is formed between the drain pipe and the filter box.

5. The exhaust gas filter according to claim 1, characterized in that: A partition is horizontally installed inside the filter box, and the partition divides the inside of the filter box into a water storage area and a purification area. A second communication hole is provided between the water storage area and the purification area.

6. The exhaust gas filter according to claim 5, characterized in that: A spray end is provided between the water storage area and the purification area, and a drain port is provided on the outside of the filter box, and the drain port is communicated with the water storage area.

7. The exhaust gas filter according to claim 6, characterized in that: The spray end includes a pump body, a water pipe and a spray plate; one end of the water pipe extends into the water storage area, and the other end extends into the purification area, and the pump body is installed on the water pipe, and the end of the water pipe is connected to the spray plate, and the spray plate is located above the second connecting hole.

8. The exhaust gas filter according to claim 7, characterized in that: Guide plates are obliquely arranged on both sides of the second communicating hole.

9. The exhaust gas filter according to claim 1, characterized in that: The purification end includes a first filter screen and a second filter screen; the first filter screen and the second filter screen are installed in the filter box at equal distances.

10. An electrolytic cell, characterized in that: Comprising the exhaust gas filter according to any one of claims 1 to 9.

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