Filtering and discharging device for environment-friendly desulfurization chimney of power plant

Abstract

The invention relates to the technical field of flue gas desulfurization, in particular to a power plant environment-friendly desulfurization chimney filtering and discharging device which comprises a base and a flow guide filtering assembly. The flow guiding and filtering assembly comprises a desulfurization table arranged at one end of the base, a desulfurization cavity part, a lining body, a thermal insulation cylinder, a lifting plate and filter cloth, the desulfurization table is provided with a cavity, the thermal insulation cylinder is located between the lining body and the desulfurization cavity part, the lifting plate is arranged in the middle of the lining body, a plurality of pieces of filter cloth are arranged at the top of the lifting plate, and the filter cloth is arranged in a stacked mode. According to the environment-friendly desulfurization chimney filtering and discharging device for the power plant, the contact area of flue gas and the device can be increased, and the desulfurization efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of flue gas desulfurization, and in particular to an environmentally friendly desulfurization chimney filtering and emission device for a power plant. Background Art

[0002] Flue gas desulfurization refers to the removal of sulfur oxides from flue gas or other industrial waste gas. The most commonly used commercial technology in the world is the calcium method, which accounts for more than 90%. According to the dry and wet state of the absorbent and the desulfurization product during the desulfurization process, the desulfurization technology can be divided into wet method, dry method and semi-dry method. Wet FGD technology uses a solution or slurry containing an absorbent to desulfurize and treat the desulfurization product in a wet state. This method has the advantages of fast desulfurization reaction speed, simple equipment, and high desulfurization efficiency, but it generally has problems such as severe corrosion, high operation and maintenance costs, and easy secondary pollution.

[0003] The related art discloses a chimney emission device for environmentally friendly desulfurization in thermal power plants. When the flue gas is desulfurized, the time and area of ​​contact between the flue gas and the device are short, resulting in a fast flue gas emission rate, low desulfurization efficiency and poor effect. Summary of the invention

[0004] The present invention aims to solve one of the technical problems in the related art at least to a certain extent.

[0005] To this end, an embodiment of the present invention proposes a power plant environmentally friendly desulfurization chimney filtering and emission device, which can increase the contact area between the flue gas and the device and improve the desulfurization efficiency.

[0006] The power plant environmental protection desulfurization chimney filtering and discharging device according to the embodiment of the present invention comprises a base and a flow guiding and filtering component, wherein the flow guiding and filtering component is arranged on the base.

[0007] The flow guide filter assembly includes a desulfurization platform, a desulfurization chamber component, an inner lining body, a temperature-insulating cylinder, a lifting plate and a filter cloth arranged at one end of the base, the desulfurization platform has a cavity, an air intake channel pipe is arranged at one end of the desulfurization platform, the air intake channel pipe extends into the desulfurization platform and is connected with the cavity of the desulfurization platform, the top cover of the desulfurization platform is provided with a desulfurization chamber component, the vertical cross-section shape of the desulfurization chamber component is set to be conical, and the inner lining body is arranged inside the desulfurization chamber component,

[0008] An insulation tube is sleeved on the outer side of the inner lining body, and the insulation tube is located between the inner lining body and the desulfurization chamber. A plurality of convex ribs arranged at intervals are provided on the outer peripheral surface of the insulation tube. A lifting plate is provided in the middle of the inner lining body, and a plurality of filter cloths are provided on the top of the lifting plate, and the filter cloths are stacked.

[0009] The power plant environmental protection desulfurization chimney filtering and emission device according to the embodiment of the present invention can increase the contact area between the flue gas and the device and improve the desulfurization efficiency.

[0010] In some embodiments, the filter cloth is truncated cone-shaped.

[0011] In some embodiments, a plurality of through holes are formed through the surface of the lining body, and a plurality of heating blocks are fixedly disposed on each of the plurality of convex ribs.

[0012] In some embodiments, a limiting groove 19 is formed through the desulfurization platform 2 , and a clamping groove 20 which is respectively connected with the air inlet channel pipe 3 and the limiting groove is formed at the bottom of the inner wall of the desulfurization platform 2 .

[0013] In some embodiments, a filter element is clamped in the slot, the top of the filter element extends to the bottom of the inner wall of the limiting slot, a partition is provided on one side of the filter element, the partition is embedded in one end of the air inlet channel tube close to the base, and a reflux chamber is formed between the partition and the slot.

[0014] In some embodiments, the desulfurization chamber is installed on the top of the desulfurization platform through a flange, and the bottoms of the insulation cylinder and the lining body extend to the bottom of the inner wall of the limiting groove and are covered on the outside of the filter element.

[0015] In some embodiments, a plurality of the filter cloths are provided with a plurality of guide ribs.

[0016] In some embodiments, a fan is provided at the top of the desulfurization chamber component, an extraction pipe is provided at the input end of the fan, the extraction pipe passes through the desulfurization chamber component and extends to the top of the inner cavity of the desulfurization chamber component, a delivery pipe is provided at the output end of the fan, a discharge pipe is installed at one end of the delivery pipe through a flange, and the discharge pipe is installed on one side of the base through a flange.

[0017] In some embodiments, pumps are provided on both sides of the fan, and a spray pipe is provided at the output end of the pump. The spray pipe passes through the desulfurization platform and extends to the interior of the desulfurization chamber.

[0018] In some embodiments, a pad is clamped on the top of the desulfurization chamber, and the pad is detachably connected to the fan and the pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a front view of the power plant environmental protection desulfurization chimney filtering and emission device according to an embodiment of the present invention.

[0020] Figure 2 It is a cross-sectional view of a power plant environmental protection desulfurization chimney filtering and emission device according to an embodiment of the present invention.

[0021] Figure 3 It is a three-dimensional diagram of the lifting plate, filter cloth and guide ribs of the power plant environmental protection desulfurization chimney filtering and emission device according to an embodiment of the present invention.

[0022] Figure 4It is a stereoscopic diagram of the base, desulfurization platform, air intake channel, filter element, partition and discharge pipe outlet of an embodiment of the present invention.

[0023] Figure 5 It is a stereoscopic diagram of the desulfurization chamber, spray pipe, fan and pump according to an embodiment of the present invention.

[0024] Figure 6 for Figure 5 Exploded diagram.

[0025] Reference numerals:

[0026] Base 1, desulfurization platform 2, air inlet channel pipe 3, desulfurization chamber part 4, lining body 5, insulation cylinder 6, convex rib 7, heating block 8, filter element 9, partition 10, fan 11, extraction pipe 12, pump 13, delivery pipe 14, spray pipe 15, discharge pipe mouth 16, reflux chamber 17, pad 18, limit groove 19, card slot 20, through hole 21, lifting plate 22, filter cloth 23, guide rib 24. DETAILED DESCRIPTION

[0027] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0028] To this end, an embodiment of the present invention proposes a power plant environmentally friendly desulfurization chimney filtering and emission device, which can increase the contact area between the flue gas and the device and improve the desulfurization efficiency.

[0029] The power plant environmental protection desulfurization chimney filtering and emission device according to the embodiment of the present invention comprises a base 1 and a flow guiding and filtering assembly, wherein the flow guiding and filtering assembly is arranged on the base 1.

[0030] The flow guide filter assembly includes a desulfurization platform 2, a desulfurization chamber member 4, an inner lining body 5, an insulation cylinder 6, a lifting plate 22 and a filter cloth 23 arranged at one end of a base 1. The desulfurization platform 2 has a cavity. An air intake channel pipe 3 is arranged at one end of the desulfurization platform 2. The air intake channel pipe 3 extends into the desulfurization platform 2 and is connected to the cavity of the desulfurization platform 2. The top cover of the desulfurization platform 2 is provided with a desulfurization chamber member 4. The vertical cross-sectional shape of the desulfurization chamber member 4 is set to be conical. The inner lining body 5 is arranged inside the desulfurization chamber member 4.

[0031] An insulation tube 6 is sleeved on the outer side of the lining body 5, and the insulation tube 6 is located between the lining body 5 and the desulfurization chamber 4. A plurality of convex ribs 7 arranged at intervals are provided on the outer peripheral surface of the insulation tube 6. A lifting plate 22 is provided in the middle of the lining body 5, and a plurality of filter cloths 23 are provided on the top of the lifting plate 22, and the filter cloths 23 are stacked.

[0032] Specifically, the flow guide and filtering assembly includes a desulfurization platform 2 arranged at one end of a base 1, an air intake channel pipe 3 is arranged at one end of the desulfurization platform 2, the air intake channel pipe 3 is fixed on the desulfurization platform 2 and is connected with the desulfurization platform 2, a desulfurization chamber part 4 is arranged on the top cover of the desulfurization platform 2, a vertical cross-sectional shape of the desulfurization chamber part 4 is arranged to be conical, an inner lining body 5 is arranged inside the desulfurization chamber part 4; a desulfurization chamber is provided in the desulfurization chamber part 4.

[0033] An insulation tube 6 is sleeved on the outer side of the lining body 5, and the insulation tube 6 is located between the lining body 5 and the desulfurization chamber member 4. A plurality of convex ribs 7 are fixedly arranged on the insulation tube 6. A lifting plate 22 is arranged in the middle of the lining body 5, and a plurality of filter cloths 23 are arranged on the top of the lifting plate 22. The filter cloths 23 are stacked, and a plurality of filter cloths 23 are provided with a plurality of guide ribs 24.

[0034] Through the guide filter assembly set on the base 1, the flue gas is filtered by the filter element 9 and then transported to the desulfurization chamber 4 for desulfurization treatment. The dust impurities in the flue gas are filtered by the filter element 9 to prevent the device from being blocked. The desulfurizer contacts the filter cloth 23 and soaks the filter cloth 23, so that the flue gas can fully contact the desulfurizer for desulfurization reaction when passing through the filter cloth 23. Each filter cloth 23 is stacked to extend the contact time and area of ​​the flue gas with it, and the convex rib 7 can gather heat and reduce the heat source loss rate, so that SO2 in the flue gas is more easily absorbed and oxidized. At the same time, the water content in the flue gas is reduced, which greatly avoids the occurrence of condensation in the equipment, thereby ensuring the desulfurization effect. The stacked filter cloth 23 extends the contact time and area between the flue gas and the desulfurization medium, and improves the desulfurization efficiency.

[0035] In the power plant environmental protection desulfurization chimney filtering emission device of the embodiment of the present invention, each filter cloth 23 is stacked to extend the contact time and area of ​​the flue gas therewith, thereby increasing the contact area between the flue gas and the device and improving the desulfurization efficiency.

[0036] In some embodiments, the filter cloth 23 is truncated cone-shaped. Compared with a flat filter cloth, a truncated cone-shaped filter cloth has a larger surface area, so it can increase the contact area between the flue gas and the filter cloth. This helps to more fully capture and filter solid particles in the flue gas, thereby improving the desulfurization efficiency. The design of the truncated cone-shaped filter cloth can guide the flue gas to flow more evenly on the surface of the filter cloth, reducing the accumulation and retention of flue gas on the filter cloth. This helps to reduce the resistance during flue gas emission and improve the operating efficiency of the entire desulfurization system. The design of the truncated cone-shaped filter cloth can also enhance its structural stability. Compared with a flat filter cloth, the truncated cone-shaped filter cloth can better maintain its shape and stability when it is scour by flue gas and particulate matter is deposited, thereby extending the service life of the filter cloth.

[0037] In some embodiments, a plurality of through holes 21 are formed through the surface of the lining body 5 , and a plurality of heating blocks 8 are fixedly disposed on the plurality of ribs 7 .

[0038] The heating block 8 can be an existing heating device or heating component. The heating block 8 is used for heating, and the convex rib 7 can gather the heat source and reduce the heat source loss rate, so that after the flue gas is heated, the SO2 in the flue gas is more easily absorbed and oxidized. At the same time, the water content in the flue gas is reduced, which greatly avoids the occurrence of condensation in the equipment, thereby ensuring the desulfurization effect.

[0039] The through holes 21 on the lining body 5 enable the flue gas of the desulfurization reaction to be more evenly distributed on the surface and inside of the lining body 5. When the desulfurizer is injected into the desulfurization chamber, these through holes allow the desulfurizer to penetrate into various parts of the lining body, ensuring that the flue gas and the desulfurizer can fully contact. When the flue gas passes through the through holes 21, disturbance and turbulence effects will be generated. This disturbance helps to increase the degree of mixing between the flue gas and the desulfurizer, improve the efficiency of the desulfurization reaction, and accelerate the desulfurization process. The through holes 21 also serve as a heat transfer channel. During the desulfurization process, the heat generated by the reaction can be transferred to other parts of the lining body through the through holes, which helps to maintain the temperature stability in the desulfurization chamber. This is conducive to the continuous progress of the desulfurization reaction and avoids the decrease in desulfurization efficiency due to excessively high or low local temperatures. By rationally designing the size and distribution of the through holes 21, the accumulation and clogging risks of solid particles in the flue gas on the surface of the lining body can be effectively reduced. These through holes can serve as channels for smoke flow, helping particulate matter to be carried away more smoothly and avoiding the formation of a deposition layer on the lining body.

[0040] In some embodiments, the desulfurization platform 2 is provided with a limiting groove 19, and the bottom of the inner wall of the desulfurization platform 2 is provided with a clamping groove 20 respectively connected with the air intake channel pipe 3 and the limiting groove. The desulfurization platform 2 is provided with a limiting groove 19, and the limiting groove 19 is connected with the air intake channel pipe 3 through the clamping groove 20, that is, the bottom of the inner wall of the limiting groove 19 is provided with a clamping groove 20.

[0041] In some embodiments, a filter element 9 is clamped in the slot 20, and the top of the filter element 9 extends to the bottom of the inner wall of the limiting groove 19. A partition 10 is provided on one side of the filter element 9, and the partition 10 is embedded in one end of the air inlet channel tube 3 close to the base 1, and a reflux chamber 17 is formed between the partition 10 and the slot 20. A filter element 9 is clamped in the slot 20, and the top of the filter element 9 extends to the bottom of the inner wall of the limiting groove 19. A partition 10 is provided on one side of the filter element 9, and the partition 10 is embedded in one end of the air inlet channel tube 3 close to the base 1, and a reflux chamber 17 is formed between the partition 10 and the slot 20. The desulfurization chamber part 4 is installed on the top of the desulfurization platform 2 through a flange, and the bottoms of the insulation cylinder 6 and the lining body 5 extend to the bottom of the inner wall of the limiting groove 19 and are covered on the outside of the filter element 9.

[0042] In some embodiments, the desulfurization chamber member 4 is installed on the top of the desulfurization platform 2 through a flange, and the bottoms of the insulation cylinder 6 and the lining body 5 extend to the bottom of the inner wall of the limiting groove 19 and are covered on the outside of the filter element 9.

[0043] Specifically, the desulfurization chamber member 4 is installed on the top of the desulfurization platform 2 through a flange. This connection method not only ensures the stability of the desulfurization chamber member, but also facilitates subsequent maintenance and replacement. Flange connection usually has a high sealing performance and can prevent flue gas leakage, thereby ensuring the continuity and efficiency of the desulfurization process.

[0044] The bottom extension of the insulation cylinder 6 and the lining body 5 can provide additional protection for the filter element, prevent solid particles in the flue gas from directly impacting the filter element, and extend the service life of the filter element. The presence of the insulation cylinder 6 helps to reduce the loss of heat from the desulfurization chamber to the outside, thereby improving the temperature stability in the desulfurization chamber. The bottom of the lining body 5 extends and covers the outside of the filter element 9, which can further disturb the flue gas, increase the probability of contact between the flue gas and the desulfurizer, and improve the desulfurization efficiency.

[0045] In some embodiments, a plurality of the filter cloths 23 are provided with a plurality of guide ribs 24. The guide ribs 24 can guide the flow of fluid (such as smoke) on the surface of the filter cloth, reduce the scouring and wear of the filter cloth 23 by the fluid, and improve the filtering efficiency. By designing the guide ribs 24, it is possible to ensure that the fluid is evenly distributed on the filter cloth to avoid local excessive wear or blockage. The provision of the guide ribs 24 can increase the structural strength of the filter cloth 23, so that it can withstand greater filtering pressure, thereby extending the service life of the filter cloth 23.

[0046] In some embodiments, a fan 11 is provided at the top of the desulfurization chamber 4, and an extraction pipe 12 is provided at the input end of the fan 11, and the extraction pipe 12 passes through the desulfurization chamber 4 and extends to the top of the inner cavity of the desulfurization chamber 4. A delivery pipe 14 is provided at the output end of the fan 11, and a discharge pipe 16 is installed at one end of the delivery pipe 14 through a flange, and the discharge pipe 16 is installed on one side of the base 1 through a flange. Specifically, the fan 11 can extract the gas in the desulfurization chamber 4 through the extraction pipe 12, and transport it to the discharge pipe 16 through the delivery pipe 14, and finally discharge it into the atmosphere. The input end of the fan 11 is connected to the extraction pipe 12, which passes through the desulfurization chamber 4 and extends to the top of its inner cavity. Such a configuration ensures that the fan can efficiently extract the gas at the top of the desulfurization chamber, and avoids the gas from accumulating or forming vortices in the desulfurization chamber, which affects the desulfurization effect.

[0047] In some embodiments, pumps 13 are provided on both sides of the fan 11, and a spray pipe 15 is provided at the output end of the pump 13, and the spray pipe 15 penetrates the desulfurization platform 2 and extends to the interior of the desulfurization chamber 4. At the same time, when the flue gas is filtered by the filter element 9 and transported to the desulfurization chamber 4, the desulfurizer is transported to the desulfurization chamber 4 through the spray pipe 15 by the pump 13 and sprayed out, and the desulfurizer contacts and soaks the filter cloth 23, so that the flue gas can fully contact the desulfurizer for desulfurization reaction when passing through the filter cloth 23. Each filter cloth 23 is stacked to extend the contact time and area of ​​the flue gas therewith, and the guide ribs 24 prevent the flue gas from gathering together, so as to achieve efficient desulfurization treatment while guiding the flow.

[0048] In some embodiments, a backing plate 18 is clamped on the top of the desulfurization chamber member 4 , and the backing plate 18 is detachably connected to the fan 11 and the pump 13 .

[0049] The following is an overall description of the power plant environmental protection desulfurization chimney filtering and emission device according to the embodiment of the present invention:

[0050] As attached Figure 1 - Figure 6 The power plant environmental protection desulfurization chimney filtering and emission device shown in the figure, through the guide filtering assembly arranged on the base 1, the flue gas is filtered by the filter element 9 and then transported to the desulfurization chamber 4 for desulfurization treatment. The dust impurities in the flue gas are filtered by the filter element 9 to prevent the device from being blocked. The desulfurizer contacts and soaks the filter cloth 23, so that the flue gas can be fully in contact with the desulfurizer for desulfurization reaction when passing through the filter cloth 23. Each filter cloth 23 is stacked to extend the contact time and area of ​​the flue gas with it, and the guide ribs 24 prevent the flue gas from gathering together, realizing efficient desulfurization treatment while guiding, and heating is carried out by the heating block 8, and the convex ribs 7 can gather the heat source to reduce the heat source loss rate, so that after the flue gas is heated, SO2 in the flue gas is more easily absorbed and oxidized, and the water content in the flue gas is reduced, which greatly avoids the occurrence of condensation of the equipment, thereby ensuring the desulfurization effect, and the specific structure of the assembly is arranged as follows;

[0051] The flow guide filter assembly includes a desulfurization platform 2 arranged at one end of a base 1, an air intake channel pipe 3 is arranged at one end of the desulfurization platform 2, the air intake channel pipe 3 is fixed on the desulfurization platform 2 and communicated with the desulfurization platform 2, a desulfurization chamber member 4 is arranged on the top cover of the desulfurization platform 2, the vertical cross-section shape of the desulfurization chamber member 4 is set to be conical, and an inner lining body 5 is arranged inside the desulfurization chamber member 4;

[0052] An insulation tube 6 is sleeved on the outer side of the lining body 5, and the insulation tube 6 is located between the lining body 5 and the desulfurization chamber member 4. A plurality of convex ribs 7 are fixedly arranged on the insulation tube 6. A lifting plate 22 is arranged in the middle of the lining body 5, and a plurality of filter cloths 23 are arranged on the top of the lifting plate 22. The filter cloths 23 are stacked, and a plurality of filter cloths 23 are provided with a plurality of guide ribs 24.

[0053] A plurality of through holes 21 are provided through the surface of the lining body 5, a plurality of heating blocks 8 are fixedly provided on the plurality of convex ribs 7, a limiting groove 19 is provided through the desulfurization platform 2, the limiting groove 19 extends into the air inlet channel tube 3 and is connected with the air inlet channel tube 3, a card slot 20 is provided at the bottom of the inner wall of the limiting groove 19, a filter element 9 is carded in the card slot 20, the top of the filter element 9 extends to the bottom of the inner wall of the limiting groove 19, a partition 10 is provided on one side of the filter element 9, the partition 10 is embedded in one end of the air inlet channel tube 3 close to the base 1, and a reflux chamber 17 is formed between the partition 10 and the card slot 20, the desulfurization chamber part 4 is installed on the top of the desulfurization platform 2 through a flange, and the bottom of the insulation cylinder 6 and the lining body 5 both extend to the bottom of the inner wall of the limiting groove 19 and are covered on the outside of the filter element 9;

[0054] A fan 11 is arranged at the top of the desulfurization chamber member 4, and an extraction pipe 12 is arranged at the input end of the fan 11. The extraction pipe 12 penetrates the desulfurization chamber member 4 and extends to the top of the inner cavity of the desulfurization chamber member 4. A delivery pipe 14 is arranged at the output end of the fan 11. A discharge pipe 16 is installed at one end of the delivery pipe 14 through a flange. The discharge pipe 16 is installed on one side of the base 1 through a flange. Pumps 13 are arranged on both sides of the fan 11. A spray pipe 15 is arranged at the output end of the pump 13. The spray pipe 15 penetrates the desulfurization platform 2 and extends to the interior of the desulfurization chamber member 4. A pad 18 is clamped at the top of the desulfurization chamber member 4, and the pad 18 is detachably connected to the fan 11 and the pump 13 through bolts.

[0055] According to the above structure, when in use, the staff installs the device at the designated position. When desulfurizing and filtering the high-temperature flue gas generated by the operation of the power plant, the high-temperature flue gas is transported to the air intake channel pipe 3 through the duct, and the flue gas is transported through the air intake channel pipe 3. After being filtered by the filter element 9, the flue gas is transported to the desulfurization chamber 4 for desulfurization treatment. The dust and impurities in the flue gas are prevented from clogging the device by filtering through the filter element 9. At the same time, the flue gas passes through the reflux chamber 17 so that it rotates through the reflux chamber 17 in the air intake channel pipe 3 and fully contacts with the filter element 9, thereby preventing the flue gas from refluxing and leaking.

[0056] At the same time, when the flue gas is filtered by the filter element 9 and transported to the desulfurization chamber 4, the desulfurizer is transported to the desulfurization chamber 4 through the spray pipe 15 by the pump 13 and sprayed out. The desulfurizer contacts and soaks the filter cloth 23, so that the flue gas can fully contact with the desulfurizer for desulfurization reaction when passing through the filter cloth 23. Each filter cloth 23 is stacked to extend the contact time and area of ​​the flue gas therewith, and the guide ribs 24 prevent the flue gas from gathering together, thereby achieving efficient desulfurization treatment while guiding the flow.

[0057] When the flue gas is desulfurized, it is heated by the heating block 8, and the convex ribs 7 can gather the heat source to reduce the heat source loss rate, so that after the flue gas is heated, the SO2 in the flue gas is more easily absorbed and oxidized, and the water content in the flue gas is reduced, which greatly avoids the occurrence of condensation in the equipment, thereby ensuring the desulfurization effect. After the flue gas is desulfurized, it is extracted by the fan 11 and transported to the discharge pipe port 16 through the spray pipe 15 for discharge.

[0058] Different from the prior art, the present application discloses an environmentally friendly desulfurization chimney filtering and emission device for a power plant, in which the flue gas is filtered by a filter element 9 and then transported to a desulfurization chamber 4 for desulfurization treatment. The filter element 9 filters to prevent dust and impurities in the flue gas from clogging the device. The desulfurizer contacts and soaks the filter cloth 23, so that the flue gas can fully contact the desulfurizer for desulfurization reaction when passing through the filter cloth 23. Each filter cloth 23 is stacked to extend the contact time and area of ​​the flue gas therewith, while the guide ribs 24 prevent the flue gas from gathering together, achieving efficient desulfurization treatment while guiding the flow. The flue gas is heated by a heating block 8, and the convex ribs 7 can gather the heat source to reduce the heat source loss rate, so that after the flue gas is heated, the SO2 in the flue gas is more easily absorbed and oxidized, and at the same time, the water content in the flue gas is reduced, which greatly avoids the occurrence of condensation in the equipment, thereby ensuring the desulfurization effect.

[0059] Technical effects and advantages of the present invention:

[0060] 1. The present invention filters the flue gas through the filter element 9 and then transports it to the desulfurization chamber 4 for desulfurization treatment. The filter element 9 filters the flue gas to prevent dust and impurities in the flue gas from clogging the device. At the same time, the flue gas passes through the reflux chamber 17 in the air inlet channel tube 3 and rotates through the reflux chamber 17 and contacts the filter element 9 in full, thereby preventing the flue gas from refluxing and leaking out.

[0061] 2. When the flue gas of the present invention is filtered by the filter element 9 and transported to the desulfurization chamber 4, the desulfurizer is transported to the desulfurization chamber 4 through the pump 13 and the spray pipe 15, and the desulfurizer contacts and soaks the filter cloth 23, so that the flue gas can fully contact with the desulfurizer to perform a desulfurization reaction when passing through the filter cloth 23. Each filter cloth 23 is stacked to extend the contact time and area of ​​the flue gas therewith, and the guide ribs 24 prevent the flue gas from gathering together, so as to achieve efficient desulfurization treatment while guiding the flow;

[0062] 3. When the flue gas of the present invention is desulfurized, it is heated by the heating block 8, and the convex ribs 7 can gather the heat source, reduce the heat source loss rate, so that after the flue gas is heated, SO2 in the flue gas is more easily absorbed and oxidized, and the water content in the flue gas is reduced, which greatly avoids the occurrence of condensation of the equipment, thereby ensuring the desulfurization effect;

[0063] To sum up, through the corresponding coordinated use of various structures, the flue gas is filtered by the filter element 9 and then transported to the desulfurization chamber 4 for desulfurization treatment. The filter element 9 is used to prevent dust and impurities in the flue gas from clogging the device. The desulfurizer contacts the filter cloth 23 and soaks the filter cloth 23, so that the flue gas can fully contact the desulfurizer for desulfurization reaction when passing through the filter cloth 23. The filter cloths 23 are stacked to extend the contact time and area of ​​the flue gas therewith, and the guide ribs 24 prevent the flue gas from gathering together, thereby achieving efficient desulfurization treatment while guiding the flow. The flue gas is heated by the heating block 8, and the convex ribs 7 can gather the heat source to reduce the heat source loss rate, so that after the flue gas is heated, the SO2 in the flue gas is more easily absorbed and oxidized, and the water content in the flue gas is reduced, which greatly avoids the occurrence of condensation in the equipment, thereby ensuring the desulfurization effect.

[0064] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0065] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0066] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0067] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0068] In the present invention, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0069] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A power plant environmental protection desulfurization chimney filtering and emission device, characterized in that: It includes a base and a flow guide filter component, the base is provided with a flow guide filter component, the flow guide filter component includes a desulfurization platform, a desulfurization chamber component, an inner lining body, a temperature insulation cylinder, a lifting plate and a filter cloth arranged at one end of the base, the desulfurization platform has a cavity, one end of the desulfurization platform is provided with an air intake channel pipe, the air intake channel pipe extends into the desulfurization platform and is connected with the cavity of the desulfurization platform, the top cover of the desulfurization platform is provided with a desulfurization chamber component, the vertical cross-section shape of the desulfurization chamber component is set to be conical, and the interior of the desulfurization chamber component is provided with an inner lining body, An insulation tube is sleeved on the outer side of the inner lining body, and the insulation tube is located between the inner lining body and the desulfurization chamber. A plurality of convex ribs arranged at intervals are provided on the outer peripheral surface of the insulation tube. A lifting plate is provided in the middle of the inner lining body, and a plurality of filter cloths are provided on the top of the lifting plate, and the filter cloths are stacked.

2. The power plant environmental protection desulfurization chimney filtering and emission device according to claim 1 is characterized in that: The filter cloth is in a truncated cone shape.

3. The power plant environmental protection desulfurization chimney filtering and emission device according to claim 1 is characterized in that: A plurality of through holes are formed through the surface of the lining body, and a plurality of heating blocks are fixedly arranged on the plurality of convex ribs.

4. The power plant environmental protection desulfurization chimney filtering and emission device according to claim 1 is characterized in that: The desulfurization platform is provided with a limiting groove through and through, and the bottom of the inner wall of the desulfurization platform is provided with a clamping groove which is respectively connected with the air inlet channel pipe and the limiting groove.

5. The power plant environmental protection desulfurization chimney filtering and emission device according to claim 1 is characterized in that: A filter element is clamped in the slot, the top of the filter element extends to the bottom of the inner wall of the limiting slot, a partition is provided on one side of the filter element, the partition is embedded in one end of the air inlet channel tube close to the base, and a reflux chamber is formed between the partition and the slot.

6. The power plant environmental protection desulfurization chimney filtering and emission device according to claim 1 is characterized in that: The desulfurization chamber is installed on the top of the desulfurization platform through a flange, and the bottoms of the insulation cylinder and the lining body are extended to the bottom of the inner wall of the limiting groove and are covered on the outside of the filter element.

7. The power plant environmental protection desulfurization chimney filtering and emission device according to claim 1 is characterized in that: A plurality of guide ribs are provided on the plurality of filter cloths.

8. The power plant environmental protection desulfurization chimney filtering and emission device according to claim 1 is characterized in that: A fan is arranged at the top of the desulfurization chamber component, and an extraction pipe is arranged at the input end of the fan. The extraction pipe penetrates the desulfurization chamber component and extends to the top of the inner cavity of the desulfurization chamber component. A delivery pipe is arranged at the output end of the fan, and a discharge pipe port is installed at one end of the delivery pipe through a flange. The discharge pipe port is installed on one side of the base through a flange.

9. The power plant environmental protection desulfurization chimney filtering and emission device according to claim 1 is characterized in that: Pumps are arranged on both sides of the fan, and a spray pipe is arranged at the output end of the pump. The spray pipe penetrates the desulfurization platform and extends to the interior of the desulfurization chamber.

10. The power plant environmental protection desulfurization chimney filtering and emission device according to claim 1, characterized in that: A backing plate is clamped on the top of the desulfurization chamber component, and the backing plate is detachably connected to the fan and the pump.

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