A flue gas desulfurization equipment for industrial kiln

Abstract

The utility model discloses a kind of flue gas desulfurization equipment for industrial kiln, including dust removal cooling tower, reaction tower and the dust removal flue that can be communicated by dust removal cooling tower and reaction tower, the dust removal flue is by the smoke channel of self-possessed dust removal chamber, and the dust removal chamber in the rear stage dust removal part of being arranged is formed, the inner wall of smoke channel is inclined downward to the direction of smoke inlet from smoke outlet to form the smoke guide wall with 0-70 gradient;The utility model can let flue set guide function, dust removal function and easy disassembly and maintenance function in one, reduce the impurity content in flue gas by the multilevel interception of residual impurities in flue gas of several groups of filter screen, reduce the erosion caused by impurities in flue gas to reaction tower, and filter screen installation and disassembly are convenient, so that the impurities in the smoke channel can be cleaned by disassembly and replacement filter screen, effectively prevent the problem of blockage caused by impurities accumulation in the smoke channel.

Description

Technical Field

[0001] This utility model relates to the field of environmental protection equipment, specifically a flue gas desulfurization device for industrial kilns. Background Technology

[0002] Flue gas from industrial kilns must undergo dust removal and desulfurization treatment before being discharged into the atmosphere. Currently, desulfurization is performed on flue gas using desulfurization towers with internal spray devices. Among them, patent publication number CN202516471U discloses an industrial kiln flue gas desulfurization device, which includes a desulfurization tower and a desulfurization unit. The desulfurization tower consists of a dust removal and cooling tower, a reaction tower, and a flue connecting the two. The desulfurization unit consists of two-stage spray devices located in the reaction tower. An alkaline solution tank is provided between the two-stage spray devices, and a dehydration device is provided above the upper-stage spray device.

[0003] However, in the aforementioned industrial kiln flue gas desulfurization device, the flue only has the function of guiding flue gas into the reaction tower. Since the flue gas contains dust and other impurities, a large amount of impurities will accumulate in the flue during long-term use. The flue is difficult to maintain, the impurities in the flue are not easy to clean, and the flue is prone to blockage. At the same time, the accumulated impurities will enter the reaction tower in large quantities along with the flue gas, thereby corroding the reaction tower and affecting its service life. Therefore, a flue gas desulfurization device for industrial kilns is proposed. Utility Model Content

[0004] The purpose of this utility model is to provide a flue gas desulfurization device for industrial kilns, so as to solve the problems mentioned in the background art, such as the single function of the flue, the difficulty in maintenance, the difficulty in cleaning impurities in the flue, the easy occurrence of flue blockage, and the high content of impurities in the flue gas causing easy corrosion to the reaction tower.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A flue gas desulfurization device for industrial kilns includes a dust removal and cooling tower, a reaction tower, and a dust-removable flue connecting the dust removal and cooling tower and the reaction tower. The dust-removable flue consists of a smoke conveying channel with its own dust removal chamber and a downstream dust removal unit installed in the dust removal chamber. One side of the smoke conveying channel is connected to the dust removal and cooling tower via a first connecting plate, and the other side of the smoke conveying channel is connected to the reaction tower via a second connecting plate. The first connecting plate has a smoke inlet communicating with the dust removal chamber, and the second connecting plate has a smoke outlet communicating with the dust removal chamber. The inner wall of the smoke conveying channel slopes downward from the smoke outlet towards the smoke inlet to form a smoke guide wall with a slope of 0-70 degrees. The top of the smoke conveying channel has interlocking holes at intervals. The downstream dust removal unit includes several sets of filter screens that pass through the interlocking holes and extend into the dust removal chamber, with the top of the filter screens extending out of the interlocking holes.

[0006] Preferably, the slope of the guide wall in the smoke conveying channel is 5-69 degrees, so that the flue gas in the dust removal and cooling tower can quickly enter from the smoke inlet and rise upwards to be guided to the reaction tower from the smoke outlet.

[0007] Preferably, the filter screen is a multi-layer stainless steel filter screen, a multi-layer metal wire filter screen, or a multi-layer ceramic filter screen.

[0008] Preferably, a cover is detachably connected to the smoke conveying channel, which is used to cover the filter part extending above the smoke conveying channel.

[0009] Preferably, both sides of the cover are integrally connected with lugs, and a second fastener can be installed on the lugs. The second fastener is used to fasten the lugs together with the cover to the smoke conveying channel.

[0010] Preferably, the width of the socket cavity exceeds the thickness of the filter screen, and the socket has a rectangular shape when viewed from above.

[0011] The beneficial effects of this utility model are: This invention integrates guiding, dust removal, and easy disassembly and maintenance functions into a single flue gas system. Through multiple sets of filters, it intercepts residual impurities in the flue gas at multiple stages, providing post-treatment dust removal and reducing the impurity content in the flue gas entering the reaction tower. This reduces the corrosion caused by impurities in the flue gas, effectively protecting the reaction tower and extending its service life. Furthermore, the filters are directly installed on the flue gas conveying channel via insertion holes, making installation and disassembly convenient and facilitating maintenance and cleaning of the conveying channel. Replacing the filters cleans impurities within the conveying channel, effectively preventing blockages caused by impurity accumulation. This invention solves the problems of difficult flue gas maintenance, difficulty in cleaning impurities, easy blockage, and high impurity content in the flue gas that easily corrodes the reaction tower in existing flue gas desulfurization equipment. Therefore, it is beneficial for the widespread use of this flue gas desulfurization equipment for industrial kilns. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of the flue gas desulfurization equipment for industrial kilns according to this utility model; Figure 2 This is a cross-sectional view of the structure of the present invention in the combined state of the smoke conveying channel and the subsequent dust removal unit; Figure 3 This is a cross-sectional view of the smoke conveying channel of this utility model; Figure 4 This is a three-dimensional structural view of the combination of the smoke conveying channel and the subsequent dust removal unit of this utility model. Figure 5 This is a three-dimensional view of the structure of another combination of the smoke conveying channel and the subsequent dust removal unit of this utility model; Figure 6 This is a three-dimensional view of the smoke conveying channel of this utility model.

[0013] In the diagram: 1. Dust removal and cooling tower; 2. Smoke conveying channel; 21. No. 1 connecting plate; 211. Smoke inlet; 22. No. 2 connecting plate; 221. Smoke outlet; 23. First fastener; 24. Smoke guide wall; 25. Dust removal chamber; 26. Insertion hole; 3. Subsequent dust removal section; 301. Filter screen; 302. Cover; 303. Lug; 304. Second fastener; 4. Reaction tower. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] Please see Figure 1-6 This invention provides a technical solution for a flue gas desulfurization device for industrial kilns, comprising a dust removal and cooling tower 1, a reaction tower 4, and a dust-removable flue connecting the dust removal and cooling tower 1 and the reaction tower 4. The dust-removable flue consists of a smoke conveying channel 2 with its own dust removal chamber 25 and a post-dust removal unit 3 disposed within the dust removal chamber 25. One side of the smoke conveying channel 2 is connected to the dust removal and cooling tower 1 via a first connecting plate 21, and the other side of the smoke conveying channel 2 is connected to the reaction tower 4 via a second connecting plate 22. The first connecting plate 21 has a smoke inlet 211 communicating with the dust removal chamber 25, and the second connecting plate 22 has a smoke outlet 221 communicating with the dust removal chamber 25. The side view of the smoke inlet 211 and the smoke outlet 221 is circular. The overall shape of the dust removal chamber 25 can be a rectangular chamber structure. The smoke conveying channel 2 is connected to the first connecting plate 21. The second connecting plate 22 and the first fastener 23 are detachably connected between the dust removal and cooling tower 1 and the reaction tower 4. The inner wall of the flue gas conveying channel 2 slopes downward from the flue gas outlet 221 toward the flue gas inlet 211 to form a flue gas guide wall 24 with a slope of 0-70 degrees. The slope of the flue gas guide wall 24 in the flue gas conveying channel 2 is 5-69 degrees, so that the flue gas in the dust removal and cooling tower 1 can quickly enter from the flue gas inlet 211 and rise upwards to be guided to the reaction tower 4 from the flue gas outlet 221. Preferably, in this embodiment, the slope of the flue gas guide wall 24 can be 20 degrees, 30 degrees, 45 degrees or 60 degrees, so that the flue gas in the dust removal and cooling tower 1 can quickly rise from the flue gas outlet 221 and move along the slope of the flue gas guide wall 24 toward the flue gas outlet 221 to enter the reaction tower 4 for desulfurization. The sloped flue gas guide wall 24 can greatly accelerate the speed at which the flue gas is introduced into the reaction tower 4.

[0016] Both the first connecting plate 21 and the second connecting plate 22 are equipped with first fasteners 23. The first fasteners 23 can detachably connect the first connecting plate 21 to the dust removal and cooling tower 1 and detachably connect the second connecting plate 22 to the reaction tower 4. The first fasteners 23 are, but are not limited to, screws or bolts. The side view of the first connecting plate 21 and the second connecting plate 22 is rectangular.

[0017] In this embodiment, the top of the smoke conveying channel 2 is provided with interlocking holes 26; the downstream dust removal unit 3 includes several sets of filter screens 301 that pass through the interlocking holes 26 and extend into the dust removal chamber 25, and the top of the filter screens 301 extends out of the interlocking holes 26; the width of the cavity of the interlocking hole 26 exceeds the thickness of the filter screen 301, so that the filter screen 301 can be quickly inserted into the smoke conveying channel 2 from top to bottom through the interlocking hole 26, and it is also convenient to pull the filter screen 301 out from the interlocking hole 26 from bottom to top, which facilitates the disassembly, assembly and maintenance of the filter screen 301. The top view of the interlocking hole 26 is rectangular; the filter screen 301 adopts, but is not limited to, multi-layer stainless steel filter screen, multi-layer metal wire filter screen or multi-layer ceramic filter screen. The multi-layer filter screen mentioned above is a high-efficiency filter medium that achieves graded filtration through multi-layer structure design. Its core function is to intercept impurities in the fluid from coarse to fine through the layered combination of different pore sizes, covering large particulate suspended matter, colloids, microorganisms, submicron particles, etc.

[0018] The smoke conveying channel 2 is detachably connected to a cover 302, which is used to cover the portion of the filter screen 301 that extends above the smoke conveying channel 2. Both sides of the cover 302 are integrally connected to lugs 303, and second fasteners 304 can be installed on the lugs 303. The second fasteners 304 are used to fasten the lugs 303 together with the cover 302 to the smoke conveying channel 2. The second fasteners 304 are, but are not limited to, screws, bolts, or bolts. The lugs 303 have a rectangular shape when viewed from above. The cover 302 can effectively protect the portion of the filter screen 301 that is exposed on the smoke conveying channel 2 and can also seal the insertion hole 26, thereby effectively reducing the probability of smoke leakage from the insertion hole 26 in the smoke conveying channel 2. The cross-sectional shape of the cover 302 is an inverted "U" shape.

[0019] It should be noted that when the flue gas is treated by the dust removal and cooling tower 1 and then introduced into the reaction tower 4 through the flue gas conveying channel 2, it can pass through several sets of filter screens 301 to intercept residual impurities in the flue gas in multiple stages, thereby performing post-dust removal treatment on the flue gas and reducing the impurity content in the flue gas entering the reaction tower 4. Then, the flue gas after dust removal enters the reaction tower 4 for desulfurization, accelerating the desulfurization speed of the flue gas, thereby reducing the corrosion of the reaction tower 4 caused by impurities in the flue gas. The impurities trapped on the filter screens 301 can be removed by opening the cover 302, thereby improving the flue gas conveying channel. The flue gas duct 2 is cleaned to prevent impurities from accumulating and causing blockages. The sloping flue gas guide wall 24 allows several sets of filter screens 301 to be installed at different heights, with a height difference between adjacent filter screens 301. This improves the interception efficiency of the filter screens 301 and greatly reduces the impurity content in the flue gas entering the reaction tower 4. The filter screens 301 are directly installed on the flue gas duct 2 through the insertion holes 26. The installation and removal of the filter screens 301 are convenient, and the flue gas duct 2 is easy to maintain and clean. The top view of the filter screens 301 is rectangular.

[0020] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0021] The above embodiments only illustrate preferred embodiments of the present utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be understood that for those skilled in the art, several modifications and improvements can be made without departing from the concept of the present utility model, and these all fall within the protection scope of the present utility model. In the present utility model, unless otherwise explicitly specified and limited, the terms "installation", "connection", "joining", "fixing", etc. should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal communication of two components or the interaction between two components. Among them, there are various ways of detachable installation, such as by plugging and snapping, or by bolt connection, etc.

[0022] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A flue gas desulfurization device for industrial kilns, characterized in that: The system includes a dust removal and cooling tower, a reaction tower, and a dust-removable flue connecting the dust removal and cooling tower and the reaction tower. The dust-removable flue consists of a smoke conveying channel with its own dust removal chamber and a downstream dust removal unit installed inside the dust removal chamber. One side of the smoke conveying channel is connected to the dust removal and cooling tower via a first connecting plate, and the other side is connected to the reaction tower via a second connecting plate. The first connecting plate has a smoke inlet communicating with the dust removal chamber, and the second connecting plate has a smoke outlet communicating with the dust removal chamber. The inner wall of the smoke conveying channel slopes downward from the smoke outlet towards the smoke inlet to form a smoke guide wall with a slope of 0-70 degrees. The top of the smoke conveying channel has interlocking holes at intervals. The downstream dust removal unit includes several sets of filter screens that pass through the interlocking holes and extend into the dust removal chamber, with the top of the filter screens extending out of the interlocking holes.

2. A flue gas desulphurization plant for industrial furnaces according to claim 1, characterized in that: The slope of the guide wall in the smoke conveying channel is 5-69 degrees, so that the flue gas in the dust removal and cooling tower can quickly enter from the smoke inlet and rise upwards to be guided to the reaction tower from the smoke outlet.

3. A flue gas desulphurization equipment for industrial kilns as claimed in claim 1, wherein: The filter screen is made of multi-layer stainless steel, multi-layer metal wire, or multi-layer ceramic.

4. A flue gas desulphurization equipment for industrial kilns as claimed in claim 1, wherein: A cover is detachably connected to the smoke conveying channel, which is used to cover the filter part that extends above the smoke conveying channel.

5. A flue gas desulphurization plant for industrial furnaces according to claim 4, characterized in that: Both sides of the cover are integrally connected with lugs, and a second fastener can be installed on the lugs. The second fastener is used to fasten the lugs together with the cover to the smoke conveying channel.

6. A flue gas desulphurization equipment for industrial kilns as claimed in claim 1, wherein: The width of the insertion hole exceeds the thickness of the filter screen, and the top view of the insertion hole is rectangular.

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