Polyanionic material waste gas treatment system

Abstract

The utility model discloses a polyanion material waste gas treatment system which comprises a spraying box body and a spraying mechanism arranged in the spraying box body, wherein a first gas inlet communicated with a waste gas exhaust pipe and a first gas outlet are formed in the spraying box body; a second air inlet communicated with the first air outlet and a second air outlet are formed in the deacidification box body; the freeze dryer is provided with a third air inlet and a third air outlet, and the third air inlet is communicated with the second air outlet; the molecular sieve adsorption dryer is provided with a fourth air inlet and a fourth air outlet, and the fourth air inlet is communicated with the third air outlet; an activated carbon adsorption box; and an induced draft fan. According to the waste gas purification device, multi-stage treatment is adopted, the purification effect is good, different pollutants in waste gas can be gradually removed through multi-stage treatment processes such as water curtain dust removal, lime water tank deacidification, water vapor removal through condensation, water vapor removal through molecular sieve adsorption and activated carbon adsorption, and the purification effect of the waste gas is effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to battery material equipment field, especially relate to a kind of polyanion material waste gas treatment system. BACKGROUND

[0002] Currently, adsorption method is mainly used, which is one of the effective methods commonly used in polyanion material waste gas treatment. Its basic principle is to use the adsorption capacity of adsorbent to various pollutants in waste gas, so that pollutants are transferred from waste gas to the surface of adsorbent, thereby realizing the purification of waste gas. The adsorption process is a dynamic equilibrium process, when the adsorption sites on the surface of adsorbent are occupied by pollutant molecules to saturation, the adsorbent needs to be regenerated or replaced to ensure continuous treatment effect. However, activated carbon is sensitive to humidity, high humidity environment may reduce its adsorption performance, because water molecules will compete with organic pollutant molecules for adsorption sites. In addition, activated carbon needs to be regenerated after adsorption saturation, the regeneration process may involve complex process and certain cost, and the adsorption performance after regeneration may decrease. SUMMARY

[0003] The utility model aims at providing a kind of polyanion material waste gas treatment system, it improves purification effect by multistage processing.

[0004] To achieve the above purpose, the utility model adopts the technical scheme of: a kind of polyanion material waste gas treatment system, it includes:

[0005] Water curtain dust collector, which includes spray box, spray mechanism installed in the spray box, the spray box is provided with first air inlet communicated with the exhaust pipe of waste gas and first air outlet;

[0006] Acid removal tank, which includes acid removal tank, the acid removal tank is provided with second air inlet communicated with the first air outlet and second air outlet;

[0007] Freeze-drying machine, which is provided with third air inlet and third air outlet, the third air inlet is communicated with the second air outlet;

[0008] Molecular sieve adsorption dryer, which is provided with fourth air inlet and fourth air outlet, the fourth air inlet is communicated with the third air outlet;

[0009] Activated carbon adsorption tank, which is provided with fifth air inlet and fifth air outlet, the fifth air inlet is communicated with the fourth air outlet;

[0010] Induced draft fan, which is provided with sixth air inlet and sixth air outlet, the sixth air inlet is communicated with the fifth air outlet.

[0011] Another embodiment, the spraying mechanism comprises a spraying disc provided on the upper end of the inside of the spraying box, a water pump for providing dust-removing water to the spraying disc, a water storage tank formed on the bottom of the spraying box for collecting dust-removing water, the water inlet of the water pump is communicated with the water storage tank, and the water outlet of the water pump is communicated with the spraying disc.

[0012] Another embodiment, the spraying disc comprises a plurality of spraying rings arranged in a ring shape and concentrically, spraying pipes communicated with the spraying rings, and the water inlets of the spraying pipes are communicated with the water outlet of the water pump.

[0013] Another embodiment, the lower end of the spraying ring is provided with a plurality of spraying openings, and each spraying opening is provided with a nozzle, the nozzle comprises an inner liner head and an outer sleeve head sleeved on the inner liner head, and a ring-shaped spraying channel is formed between the inner liner head and the outer sleeve head, which improves the atomization effect and makes dust removal more sufficient.

[0014] Another embodiment, the spraying channel between the inner liner head and the outer sleeve head comprises a front end channel, a spraying outlet, and a transition channel connected between the front end channel and the spraying outlet, the transition channel gradually narrows from the front end channel to the spraying outlet, the transition channel compresses the cross-sectional area of the channel, increases the ejection speed, and further improves the atomization effect.

[0015] Another embodiment, the outer side wall of the inner liner head and the inner side wall of the outer sleeve head forming the transition channel are respectively provided with staggered shear plates, and the atomized water droplets passing through the shear plates are sheared into smaller water droplets, further improving the atomization effect.

[0016] Another embodiment, the spraying pipes are arranged along the radial direction of each spraying ring and have at least two connection openings distributed on both sides of the center of each spraying ring, which ensures that the water flow of each nozzle is uniformly sprayed.

[0017] Another embodiment, the acid-removing tank is provided with an acid-removing gas pipe for fully contacting the waste gas with the liquid for acid removal, the second gas inlet is provided at one end of the acid-removing gas pipe, a plurality of acid-removing gas holes are provided on the circumferential surface of the acid-removing gas pipe, and the second gas outlet is provided at the upper end of the acid-removing tank.

[0018] Another embodiment, the activated carbon adsorption box comprises an adsorption box body and an adsorption filler box, a plurality of front-to-back through filter channels and a plurality of activated carbon mounting grooves perpendicular to the filter channels are formed in the adsorption box body, the two ends of the filter channel are respectively a fifth gas inlet and a fifth gas outlet, and the adsorption filler box is inserted into the activated carbon mounting groove, when the waste gas enters the filter channel from the fifth gas inlet, passes through a plurality of adsorption filler boxes, and then enters the induced draft fan from the fifth gas outlet.

[0019] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art:

[0020] 1. Multi-stage treatment with good purification effect: Through multi-stage treatment processes such as water curtain dust removal, lime water pool acid removal, condensation to remove water vapor, molecular sieve adsorption to remove water vapor and activated carbon adsorption, different pollutants in the waste gas can be removed step by step, which effectively improves the purification effect of the waste gas and makes the final emission of waste gas meet the strict environmental protection standards.

[0021] 2. It is highly targeted and adaptable to a variety of pollutants. It has corresponding treatment measures for common pollutants such as dust, acidic gases, water vapor and organic pollutants in the exhaust gas of polyanion materials. It can adapt to the complexity and diversity of exhaust gas composition and has wide applicability.

[0022] 3. Resource recycling and utilization: Sediments generated during the water curtain dust removal process of the spray system and the acid removal process in the lime water tank can be recycled after appropriate treatment, such as for use in building materials. Simultaneously, the heat recovered during the condensation process can also be utilized, improving energy efficiency and reducing the overall energy consumption of the system. The spray system also has good atomization effect, improving dust removal efficiency.

[0023] 4. Environmental protection and safety: The entire treatment process reduces the pollution of the environment by waste gas and avoids the emission of harmful substances in the waste gas; and safety design is emphasized in each treatment link, such as preventing gas leakage, controlling temperature and pressure, etc., to ensure the safety of the production process. Attached Figure Description

[0024] Appendix Figure 1 This is a schematic diagram of the structure of this utility model;

[0025] Appendix Figure 2 This is a schematic diagram of the spray plate structure;

[0026] Appendix Figure 3 This is a schematic diagram of the nozzle structure. Detailed Implementation

[0027] like Figure 1 As shown, the polyanion material exhaust gas treatment system includes: a water curtain dust collector 1, an acid removal tank 2, a freeze dryer 3, a molecular sieve adsorption dryer 4, an activated carbon adsorption box 5, and an induced draft fan 6.

[0028] The water curtain dust collector 1 includes a spray box 11 and a spray mechanism 12 installed in the spray box 11. The spray box 11 is provided with a first air inlet 1A and a first air outlet 1B that are connected to the exhaust pipe 8 of the exhaust gas.

[0029] The acid removal tank 2 includes an acid removal box 21, which is provided with a second air inlet 2A and a second air outlet 2B that are connected to the first air outlet 1B.

[0030] The freeze dryer 3 is equipped with a third air inlet 3A and a third air outlet 3B, and the third air inlet 3A is connected to the second air outlet 2B.

[0031] The molecular sieve adsorption dryer 4 is equipped with a fourth air inlet 4A and a fourth air outlet 4B, and the fourth air inlet 4A is connected to the third air outlet 3B.

[0032] The activated carbon adsorption box 5 is equipped with a fifth air inlet 5A and a fifth air outlet 5B, and the fifth air inlet 5A is connected to the fourth air outlet 4B.

[0033] The induced draft fan 6 is equipped with a sixth air inlet 6A and a sixth air outlet 6B, and the sixth air inlet 6A is connected to the fifth air outlet 5B.

[0034] like Figures 2-3 As shown, specifically, the spraying mechanism 12 includes a spray plate 13 located on the upper inner side of the spray box 11, a water pump 14 for supplying dust removal water to the spray plate 13, and a water storage tank 15 formed at the bottom of the spray box 11 for collecting the dust removal water. The water storage tank 15 is provided with a water inlet 1C, the water inlet 1D of the water pump 14 is connected to the water storage tank 15, and the water outlet of the water pump 14 is connected to the spray plate 13. The spray plate 13 includes multiple rings arranged concentrically. A spray ring 16 is provided, and a spray pipe 17 is connected to the spray ring 16. The inlet of the spray pipe 17 is connected to the outlet of the pump 14. A plurality of spray ports 18 are provided at the lower end of the spray ring 16. Each spray port 18 is provided with a nozzle 19. The nozzle 19 includes an inner liner head 110 and an outer liner head 111 sleeved on the inner liner head 110. An annular spray channel 10 is formed between the inner liner head 110 and the outer liner head 111. The spray channel 10 raises the water level of the spray pipe 19. To achieve atomization and more thorough dust removal, the spray channel 10 between the inner liner head 110 and the outer liner head 111 includes a front channel 112, a spray outlet 114, and a transition channel 113 connecting the front channel 112 and the spray outlet 114. The transition channel 113 gradually narrows from the front channel 112 towards the spray outlet 114, compressing the cross-sectional area of ​​the channel and increasing the spray speed, further improving the atomization effect. The outer side wall of the inner liner head 110 and the inner side wall of the outer liner head 111 forming the transition channel 113 are respectively provided with staggered shear plates 115. The atomized water droplets are sheared into smaller droplets as they pass through the shear plates 115, further improving the atomization effect. The spray pipe 17 is arranged radially along each spray ring 16 and has at least two connection ports distributed on both sides of the center of each spray ring 16, ensuring that the pressure of the water flow from each nozzle 19 is uniform.

[0035] The acid-removing tank 2 is provided with an acid-removing pipe 22 for fully contacting the waste gas with the liquid for removing acid, the second gas inlet 2A is arranged at one end of the acid-removing pipe 22, a plurality of acid-removing holes are arranged on the circumferential surface of the acid-removing pipe 22, and the second gas outlet 2B is arranged at the upper end of the acid-removing tank 21.

[0036] The activated carbon adsorption tank 5 comprises an adsorption tank 51 and an adsorption filler tank 52, a plurality of filter channels 53 and a plurality of activated carbon installation grooves 54 are formed in the adsorption tank 51, the two ends of the filter channel 53 are respectively the fifth gas inlet 5A and the fifth gas outlet 5B, the adsorption filler tank 52 is inserted into the activated carbon installation groove 54, and after the waste gas enters the filter channel 53 from the fifth gas inlet 5A, the waste gas passes through a plurality of adsorption filler tanks 52 and then enters the induced draft fan 6 from the fifth gas outlet 5B.

[0037] The waste gas is purified by once passing through the water curtain dust collector 1, the acid-removing tank 2, the freeze dryer 3, the molecular sieve adsorption dryer 4, the activated carbon adsorption tank 5 and the induced draft fan 6.

[0038] The above embodiment is only for illustrating the technical concept and characteristics of the present application, and the purpose is to enable those skilled in the art to understand the content of the present application and implement it, and cannot limit the protection scope of the present application. Any equivalent changes or modifications made according to the spirit and essence of the present application shall be covered within the protection scope of the present application.

Claims

1. A waste gas treatment system using polyanion exchange materials, characterized in that, It includes: A water curtain dust collector includes a spray box and a spray mechanism installed in the spray box. The spray box is provided with a first air inlet and a first air outlet connected to an exhaust pipe of the exhaust gas. An acid removal tank includes an acid removal chamber, wherein the acid removal chamber is provided with a second air inlet and a second air outlet connected to a first air outlet; A freeze dryer is provided with a third air inlet and a third air outlet, wherein the third air inlet is connected to the second air outlet; A molecular sieve adsorption dryer is provided with a fourth air inlet and a fourth air outlet, wherein the fourth air inlet is connected to the third air outlet. An activated carbon adsorption box is provided with a fifth air inlet and a fifth air outlet, wherein the fifth air inlet is connected to the fourth air outlet. The induced draft fan has a sixth air inlet and a sixth air outlet, and the sixth air inlet is connected to the fifth air outlet.

2. The polyanion material waste gas treatment system according to claim 1, characterized in that: The spraying mechanism includes a spray plate disposed on the upper part of the inner side of the spray box, a water pump for supplying dust removal water to the spray plate, and a water storage tank formed at the bottom of the spray box for collecting dust removal water. The water inlet of the water pump is connected to the water storage tank, and the water outlet of the water pump is connected to the spray plate.

3. The polyanion material waste gas treatment system according to claim 2, characterized in that: The spray plate includes multiple concentrically arranged ring-shaped spray rings and spray pipes that are connected to the spray rings. The inlet of the spray pipes is connected to the outlet of the pump and the spray pipes.

4. The polyanion material waste gas treatment system according to claim 3, characterized in that: The lower end of the spray ring is provided with a plurality of spray ports, each of which is provided with a nozzle. The nozzle includes an inner liner head and an outer liner head fitted onto the inner liner head, and an annular spray channel is formed between the inner liner head and the outer liner head.

5. The polyanion material waste gas treatment system according to claim 4, characterized in that: The spray channel between the inner lining head and the outer lining head includes a front end channel, a spray outlet, and a transition channel connecting the front end channel and the spray outlet. The transition channel gradually narrows from the front end channel toward the spray outlet.

6. The polyanion material waste gas treatment system according to claim 5, characterized in that: The outer side wall of the inner liner head and the inner side wall of the outer jacket head that form the transition channel are respectively provided with staggered shearing plates.

7. The polyanion material waste gas treatment system according to claim 3, characterized in that: The spray pipe is arranged radially along each spray ring and has at least two connection ports distributed on both sides of the center of each spray ring.

8. The polyanion material waste gas treatment system according to claim 3, characterized in that: The deacidification tank is equipped with a deacidification gas pipe that allows the waste gas to fully contact the deacidification liquid. The second air inlet is located at one end of the deacidification gas pipe, and a plurality of deacidification gas holes are provided on the circumferential surface of the deacidification gas pipe. The second air outlet is located at the upper end of the deacidification box.

9. The polyanion material waste gas treatment system according to claim 1, characterized in that: The activated carbon adsorption box includes an adsorption box body and an adsorption packing box. The adsorption box body has multiple through-flow filtration channels and multiple activated carbon mounting slots perpendicular to the filtration channels. The two ends of the filtration channels are a fifth air inlet and a fifth air outlet, respectively. The adsorption packing box is inserted into the activated carbon mounting slot. When the waste gas enters the filtration channel from the fifth air inlet, it passes through multiple adsorption packing boxes and then enters the induced draft fan from the fifth air outlet.

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