Acid mist waste gas scrubbing tower based on wire mesh demister

Abstract

The present invention provides an acid mist waste gas washing tower based on a wire mesh demister, comprising a tower body, an upper inspection window and a lower inspection window welded to the outer wall of the tower body; a support grid and a support ring welded to the inner top of the tower body, the support rings being spaced above the support grid, a plurality of lower spray racks being mounted on the surface of the support grid, and each lower spray rack being connected to a fluid infusion pipe; the upper inspection window being relatively located above the support ring, and the lower inspection window being relatively located between the upper inspection window and the lower inspection window; the wire mesh demister assemblies located in the same row are connected to the same group of lifting drive assemblies above them; the wire mesh demister assemblies are flexible and movable structures. In the dust removal stage, the wire mesh demister assemblies of the present invention can automatically shake off dust and impurities attached to the outside, achieving first-level automatic cleaning; the wire mesh demister assemblies are in an unfolded state in the flushing stage, so that the unfolded wire mesh body can more fully contact the spray water, with a wider contact surface and a better flushing effect.

Description

Technical Field

[0001] The invention relates to the technical field of waste gas washing towers, in particular to an acid mist waste gas washing tower based on a wire mesh demister. Background Art

[0002] In the exhaust gas scrubber, a wire mesh demister is installed on the top of the tower body. When the wire mesh demister is working, the acid mist is entrained in the gas phase with tiny liquid droplets. When passing through the wire mesh of the wire mesh demister, the droplets hit the demister wire mesh and are adhered or adsorbed. After repeated adsorption of droplets, the extremely small droplets agglomerate and coalesce into large droplets. Under the action of gravity, the droplets move downward along the intersection of the woven wire mesh and continue to adsorb the droplets entrained in the gas. The grown droplets flow to the bottom of the demister wire mesh and fall down by the gravity of the droplets themselves. In fact, during the absorption process, since the interior of the entire wire mesh demister is filled with adsorbed droplets, the adsorption capacity of the individual metal or engineering plastic wires is enhanced, so that when working normally, the demisting rate of the demister wire mesh is greatly improved, and it can effectively adsorb and remove extremely small droplets.

[0003] After the wire mesh demister has been used for a period of filtration, the spray rack will spray flushing water onto the wire mesh to wash away impurities attached to the wire mesh. Since the wire mesh is composed of multiple layers, although it has a better interception effect during the filtration stage, during the cleaning stage, the impurities washed away will be intercepted by the wire mesh below. The spray water has limited coverage of the wire mesh, and the impurities washed away do not flow smoothly, resulting in poor flushing effect. The long-term retention of impurities will reduce the service life of the wire mesh demister and increase the company's maintenance costs.

[0004] In summary, there is a need for an acid mist exhaust gas washing tower with a higher wire mesh demister flushing efficiency. Summary of the Invention

[0005] In view of the deficiencies of the prior art, the present invention provides an acid mist waste gas washing tower based on a wire mesh demister, which solves the problems mentioned in the background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0007] The acid mist exhaust gas scrubber based on a wire mesh demister includes a tower body, an upper inspection window and a lower inspection window welded to the outer wall of the tower body; a support grid and a support ring are welded to the top of the inner part of the tower body, the support rings are spaced above the support grid, and a plurality of lower spray racks are installed on the surface of the support grid, each of which is connected to a liquid infusion pipe; the upper inspection window is relatively located above the support ring, and the lower inspection window is relatively located below the upper inspection window;

[0008] The support ring has a square groove on the top and a gathering cavity on the bottom. A restraining frame is welded inside the square groove. The restraining frame has mounting slots arranged in a rectangular array inside. Each mounting slot is equipped with a set of cubic wire mesh demisting components. The outlet of the lower spray rack points to the bottom of each wire mesh demisting component.

[0009] The wire mesh demisting components in the same row are connected to the same set of lifting drive components above, and the lifting drive components are installed at the edge of the upper surface of the support ring; the wire mesh demisting components are flexible and movable structures;

[0010] During the tower demisting stage, each wire mesh demisting component is folded and stored in the installation slot;

[0011] During the tower cleaning stage, the lifting drive assembly drives the wire mesh demisting assembly to lift and lower; the wire mesh demisting assembly alternately expands and contracts to shake off dust and impurities attached to the outer wall; the expanded wire mesh demisting assembly is in full contact with the cleaning water sprayed from the lower spray rack.

[0012] Furthermore, the constraint frame includes a horizontal plate body and a vertical plate body, and the vertical plate bodies are vertically welded between adjacent horizontal plates. The horizontal plates and the vertical plates are welded into a grid shape, and the rectangular cavity surrounded by the horizontal plates and the vertical plates is an installation groove. The upper surface of the horizontal plate body is flush with the upper surface of the vertical plate body, and the bottom end of the horizontal plate body extends downward and outward from the vertical plate body and the protruding part is a positioning plate; both sides of the wire mesh defogger assembly are assembled with the positioning plate.

[0013] Furthermore, the wire mesh defogger assembly includes a wire mesh body, an upper plate body, a movable plate, and a lower plate body. The outer walls of the multiple movable plates are hinged by connecting rods to form a scissor-type lifting structure. The movable plate at the top is hinged to the upper plate body through a connecting rod, and the movable plate at the bottom is hinged to the lower plate body through a connecting rod. The two sides of the wire mesh body are fixedly connected to the upper plate body, the movable plate, and the lower plate body; the multiple movable plates drive the wire mesh body to expand or retract when they are lifted and lowered; the lower plate body is fixed with the positioning plate.

[0014] Furthermore, a lower plug-in plate is provided at the bottom of the lower plate body, a third screw hole is opened inside the lower plug-in plate, a first screw hole is symmetrically opened inside the positioning plate, a socket is provided on the inner wall of the positioning plate, a second screw hole is opened inside the socket, the lower plug-in plate is inserted into the socket, and the locking screw passes through the first screw hole, the third screw hole and the second screw hole in sequence from the outside.

[0015] Furthermore, a gripping rod is fixed between the two upper plates, a clamp assembly is provided in the middle of the surface of the gripping rod, and a traction rope or a lifting drive assembly is connected to the inside of the clamp assembly.

[0016] Furthermore, the lifting drive assembly includes a main box body, a hydraulic rod and a lifting rod. The top of each end of the lifting rod is connected to a hydraulic rod. The hydraulic rod is fixed to the side of the main box body. The main box body is arranged on the surface of the support ring. The clamp assemblies of the wire mesh demisting assemblies in the same row are all mounted on the lifting rod.

[0017] Furthermore, the main box is connected to the infusion pipe, and the main box is connected in parallel to each lifting rod through a hose. The lifting rod is a hollow structure, and the bottom surface of the lifting rod is vertically connected to multiple groups of upper nozzles. Each group of upper nozzles is located above a wire mesh demisting assembly. A group of upper nozzles includes a left nozzle and a right nozzle. The left nozzle and the right nozzle are respectively tilted to point to the two sides of the wire mesh body.

[0018] Furthermore, during the installation phase, the wire mesh demisting assembly:

[0019] The wire mesh demisting components are connected in series in sequence through the traction rope, and the wire mesh demisting components are clamped and fixed with the traction rope by the clamp assembly; at this time, the wire mesh demisting components are tied and positioned by the tying belt;

[0020] The worker stands on the restraint frame and pulls the traction rope to allow the series-connected wire mesh demisting components to enter the tower through the upper inspection window;

[0021] The worker cuts the strapping, holds the handle, and inserts the wire mesh demisting components one by one into the installation slot, and inserts the lower plug-in board into the socket;

[0022] The worker standing on the supporting grid screws the locking screws so that the locking screws pass through the first locking screw hole, the third locking screw hole, and the second locking screw hole;

[0023] Connect the clamp assembly on the top of the wire mesh mist eliminator to the lifting rod assembly.

[0024] Furthermore, the wire mesh demisting assembly is used in the flue gas treatment stage:

[0025] The smoke is dispersed from the gathering cavity through the wire mesh bodies folded into one;

[0026] The lower spray frame and the upper nozzle work synchronously, and the spray water contacts the particles in the flue gas in the wire mesh body, which intercepts the particles.

[0027] Furthermore, during the cleaning process, the wire mesh demisting assembly:

[0028] Scheduled cleanup phase:

[0029] The hydraulic rod drives each lifting rod to move up and down;

[0030] The lifting rod drives the connected wire mesh demisting components to expand and retract, so that the dust attached to the outer wall of the wire mesh body is shaken off;

[0031] The upper nozzle and the lower spray frame work synchronously to regularly flush the main body of the screen;

[0032] Replacement cleaning phase:

[0033] Workers separate the clamp assembly and remove the locking screws;

[0034] Draw the wire mesh defogger assembly from the upper inspection window.

[0035] The present invention provides an acid mist waste gas scrubber based on a wire mesh demister. Compared with the prior art, it has the following advantages:

[0036] 1. The cubic structure of the wire mesh demister assembly is smaller in size and easier to pass through the upper inspection window, making installation and disassembly simpler. This solves the problem of traditional wire mesh demister panels being large in size and difficult to transport.

[0037] 2. During the cleaning phase, the screen demisting component can automatically shake off the dust and impurities attached to the outside, achieving first-level automatic cleaning. The screen demisting component is in the unfolded state during the flushing phase. In this way, the unfolded screen body can be more fully exposed to the spray water, with a wider contact surface and better flushing effect. At the same time, the unfolded screen body allows the spray water to flow downward more smoothly, and sewage and impurities flow out quickly, achieving second-level automatic cleaning; thereby effectively improving the screen cleaning effect and extending the service life of the screen;

[0038] 3. In the flue gas treatment stage, the main body of the wire mesh is stacked in a snake shape, so that it can meet the multi-layer interception in the filtration stage and the expansion and contraction functions in the cleaning stage. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0040] Figure 1 The schematic diagram of the structure of the acid mist exhaust gas washing tower based on the wire mesh demister of the present invention is shown;

[0041] Figure 2 A schematic diagram of the cross-sectional structure of the constraint frame of the present invention is shown;

[0042] Figure 3 A schematic diagram of a partial three-dimensional structure of a constraint frame of the present invention is shown;

[0043] Figure 4 A schematic diagram of the connection structure between the wire mesh demisting assembly and the traction rope of the present invention is shown;

[0044] Figure 5 A schematic diagram of the structure of the wire mesh demisting assembly of the present invention being pulled and deployed by a lifting rod is shown;

[0045] Figure 6 It shows a schematic structural diagram of the screen main body in the flushing state of the present invention;

[0046] Figure 7 It shows a schematic structural diagram of the wire mesh demisting assembly of the present invention being retracted into the installation slot;

[0047] As shown in the figure: 1. Tower body; 11. Support ring; 111. Square groove; 112. Gathering chamber; 12. Upper inspection window; 13. Lower inspection window; 14. Support grid; 2. Lifting drive assembly; 21. Main box; 22. Hydraulic rod; 3. Lifting rod; 31. Upper nozzle; 4. Constraint frame; 41. Horizontal plate; 411. Positioning plate; 4111. First screw hole; 42. Vertical plate; 43. Installation Mounting slot; 44, socket; 441, second screw hole; 45, locking screw; 5, wire mesh defogger assembly; 51, upper plate; 52, movable plate; 53, lower plate; 531, plug plate; 5311, third screw hole; 54, connecting rod; 55, grip rod; 56, wire mesh body; 57, clamp assembly; 571, lower base; 572, upper splint; 6, lower spray rack; 7, traction rope; 8, infusion tube. DETAILED DESCRIPTION

[0048] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0049] Example 1

[0050] In order to solve the technical problems in the background technology, the following acid mist exhaust gas washing tower based on a wire mesh demister is provided:

[0051] Combine Figure 1-Figure 7 As shown, the acid mist waste gas washing tower based on the wire mesh demister provided by the present invention includes a tower body 1, an upper inspection window 12 and a lower inspection window 13 are welded to the outer wall of the tower body 1; a support grid 14 and a support ring 11 are welded to the top of the inner part of the tower body 1, and the support ring 11 is spaced above the support grid 14. A plurality of lower spray racks 6 are installed on the surface of the support grid 14, and each lower spray rack 6 is connected to the infusion pipe 8; the upper inspection window 12 is relatively located above the support ring 11, and the lower inspection window 13 is relatively located below the upper inspection window 12;

[0052] The support ring 11 has a square groove 111 formed on the upper portion thereof and a gathering chamber 112 formed on the lower portion thereof. A restraining frame 4 is welded to the interior of the square groove 111. The restraining frame 4 has mounting grooves 43 formed on the interior thereof in a rectangular array. Each mounting groove 43 has a set of cubical wire mesh demisting assemblies 5 mounted therein. The outlet of the lower spray frame 6 is directed downwardly from each wire mesh demisting assembly 5.

[0053] The wire mesh demisting components 5 in the same row are connected to the same set of lifting drive components 2 above, and the lifting drive components 2 are installed at the edge of the upper surface of the support ring 11; the wire mesh demisting components 5 are flexible and movable structures;

[0054] During the demisting stage of the tower body 1, each wire mesh demisting assembly 5 is folded and stored in the mounting slot 43;

[0055] During the cleaning stage of the tower body 1, the lifting drive assembly 2 drives the wire mesh demisting assembly 5 to lift and lower; the wire mesh demisting assembly 5 is alternately expanded and retracted to shake off dust and impurities attached to the outer wall; the expanded wire mesh demisting assembly 5 is in full contact with the cleaning water sprayed by the lower spray rack 6.

[0056] By designing the wire mesh defogger assembly 5 as a cube and a flexible movable structure, the following effects can be achieved: 1. The wire mesh defogger assembly 5 with a cube structure is smaller in size, and the wire mesh defogger assembly 5 is easier to pass through the upper inspection window 12, which is simpler in the installation and disassembly stages; it solves the problem that the traditional wire mesh defogger plate is large in size and difficult to transport and transfer; 2. The wire mesh defogger assembly 5 can automatically shake off the dust and impurities attached to the outside during the cleaning stage, thereby realizing the first-level automatic cleaning. The wire mesh defogger assembly 5 is in an expanded state during the flushing stage. In this way, the expanded wire mesh main body 56 can more fully contact the spray water, with a wider contact surface and a better flushing effect. At the same time, the expanded wire mesh main body 56 allows the spray water to flow downward more smoothly, and sewage and impurities flow out quickly, thereby realizing the second-level automatic cleaning; 3. In the flue gas treatment stage, the wire mesh main body 56 is stacked in a serpentine shape, so that it can meet the multi-layer interception in the filtration stage and the expansion and retraction functions in the cleaning stage.

[0057] In this embodiment, the constraint frame 4 includes a horizontal plate body 41 and a vertical plate body 42. The vertical plate body 42 is vertically welded between adjacent horizontal plates 41. The horizontal plate body 41 and the vertical plate body 42 are welded into a grid shape. The rectangular cavity surrounded by the horizontal plate body 41 and the vertical plate body 42 is the installation groove 43. The upper surface of the horizontal plate body 41 is flush with the upper surface of the vertical plate body 42. The bottom end of the horizontal plate body 41 extends downward and outward from the vertical plate body 42 and the protruding part is the positioning plate 411; both sides of the wire mesh defogger assembly 5 are assembled with the positioning plate 411.

[0058] The bottom of the constraint frame 4 is designed with an outwardly extending positioning plate 411 , which can facilitate workers to install and remove screws; workers can perform quick operations by standing on the supporting grid 14 .

[0059] Example 2

[0060] like Figure 1-Figure 7 As shown, based on the above embodiment, this embodiment further provides the following content:

[0061] In order to enable the wire mesh demisting assembly 5 to achieve the above-mentioned functions of unfolding, folding, and stable setting during flue gas treatment, the following structural design is given:

[0062] In this embodiment, the wire mesh defogger assembly 5 includes a wire mesh body 56, an upper plate body 51, a movable plate 52, and a lower plate body 53. The outer walls of the multiple movable plates 52 are hinged to form a scissor-type lifting structure through a connecting rod 54. The movable plate 52 at the top is hinged to the upper plate body 51 through the connecting rod 54, and the movable plate 52 at the bottom is hinged to the lower plate body 53 through the connecting rod 54. The two sides of the wire mesh body 56 are fixedly connected to the upper plate body 51, the movable plate 52, and the lower plate body 53; the multiple movable plates 52 drive the wire mesh body 56 to expand or retract when they are lifted and lowered; the lower plate body 53 is fixed with the positioning plate 411.

[0063] In this embodiment, a lower plug-in plate 531 is provided at the bottom of the lower plate body 53, a third screw hole 5311 is opened inside the lower plug-in plate 531, a first screw hole 4111 is symmetrically opened inside the positioning plate 411, a socket 44 is provided on the inner wall of the positioning plate 411, a second screw hole 441 is opened inside the socket 44, the lower plug-in plate 531 is inserted into the socket 44, and the locking screw 45 passes through the first screw hole 4111, the third screw hole 5311 and the second screw hole 441 in sequence from the outside.

[0064] By cooperating with the lower plug-in plate 531 and the socket 44, the wire mesh defogger assembly 5 can be initially positioned during installation. Then the worker tightens the screws to fix the lower plate body 53. In this way, the lower plate body 53 always remains fixed during the unfolding and folding actions.

[0065] In this embodiment, a gripping rod 55 is fixed between the two upper plates 51 , a clamp assembly 57 is provided in the middle of the surface of the gripping rod 55 , and a traction rope 7 or a lifting drive assembly 2 is connected to the inside of the clamp assembly 57 .

[0066] The clamp assembly 57 exemplarily includes a lower base 571 and an upper clamping plate 572 , wherein one end of the surface of the lower base 571 is hingedly connected to the upper clamping plate 572 and the other end is connected to the upper clamping plate 572 via screws;

[0067] The design of the grip 55 makes it easy for workers to hold and transfer the wire mesh demisting assembly 5. During the loading stage, the wire mesh demisting assembly 5 can be connected in series with the traction rope 7 through the clamp assembly 57 to achieve rapid loading.

[0068] During the use phase, the clamp assembly 57 is connected to the lifting drive assembly 2 to achieve quick connection and disassembly.

[0069] Example 3

[0070] like Figure 1-Figure 7 As shown, based on the above embodiment, this embodiment further provides the following content:

[0071] In this embodiment, the lifting drive assembly 2 includes a main box body 21, a hydraulic rod 22 and a lifting rod 3. The top of each end of each lifting rod 3 is connected to a hydraulic rod 22. The hydraulic rod 22 is fixed to the side of the main box body 21. The main box body 21 is arranged on the surface of the support ring 11. The clamp assemblies 57 of the wire mesh demisting assemblies 5 in the same row are all mounted on the lifting rod 3.

[0072] The lifting rod 3 can be used to control multiple wire mesh demisting components 5 at one time to achieve expansion and folding, with high efficiency and high degree of automation.

[0073] In this embodiment, the main box body 21 is connected to the infusion pipe 8, and the main box body 21 is connected in parallel to each lifting rod 3 through a hose. The lifting rod 3 is a hollow structure, and the bottom surface of the lifting rod 3 is vertically connected to multiple groups of upper nozzles 31. Each group of upper nozzles 31 is located above a wire mesh demisting assembly 5. A group of upper nozzles 31 includes a left nozzle and a right nozzle. The left nozzle and the right nozzle are respectively tilted to point to the two sides of the wire mesh body 56.

[0074] The liquid delivery pipe 8 delivers the spray water to the lifting rod 3, and then the water is sprayed out through each upper nozzle 31, so as to flush the screen body 56 from both sides nearby, thereby improving the flushing effect.

[0075] Example 4

[0076] like Figure 1-Figure 7 As shown, based on the above embodiment, this embodiment further provides the following content:

[0077] The wire mesh demisting assembly 5 is in the installation stage:

[0078] The wire mesh demisting assemblies 5 are connected in series in sequence through the traction rope 7, and the wire mesh demisting assemblies 5 are clamped and fixed with the traction rope 7 by the clamp assembly 57; at this time, the wire mesh demisting assemblies 5 are tied and positioned by the tying belt;

[0079] The worker stands on the restraining frame 4 and pulls the traction rope 7 to allow the series-connected wire mesh demisting assembly 5 to enter the tower through the upper inspection window 12;

[0080] The worker cuts the strapping tape, holds the handle 55, and inserts the wire mesh demisting components 5 one by one into the installation slot 43, and inserts the lower insert plate 531 into the socket 44;

[0081] A worker standing on the support grid 14 screws on the locking screw 45 so that the locking screw 45 is screwed through the first locking screw hole, the third locking screw hole, and the second locking screw hole;

[0082] The clamp assembly 57 at the top of the wire mesh demister is fitted and connected to the lifting rod 3.

[0083] The wire mesh demisting component 5 is in the flue gas treatment stage:

[0084] The smoke is dispersed from the gathering chamber 112 through each of the folded-in-one wire mesh bodies 56;

[0085] The lower spray frame 6 and the upper nozzle 31 work synchronously, and the spray water contacts the particles in the flue gas in the wire mesh body 56, which intercepts the particles.

[0086] The wire mesh demisting assembly 5 is in the cleaning process stage:

[0087] Scheduled cleanup phase:

[0088] The hydraulic rod 22 drives each lifting rod 3 to move up and down;

[0089] The lifting rod 3 drives each wire mesh demisting assembly 5 connected thereto to expand and retract, so that the dust attached to the outer wall of the wire mesh body 56 is shaken off;

[0090] The upper nozzle 31 and the lower spray frame 6 work synchronously to regularly flush the screen body 56;

[0091] Replacement cleaning phase:

[0092] The worker separates the clamp assembly 57 and unscrews the locking screw 45;

[0093] The upper wire mesh demisting assembly 5 is thrown out from the upper inspection window 12.

[0094] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0095] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. The acid mist exhaust gas scrubber based on a wire mesh demister includes a tower body, with upper and lower inspection windows welded to the outer wall of the tower body; a support grid and support ring are welded to the top of the tower body, with the support rings spaced above the support grid. Multiple lower spray racks are mounted on the surface of the support grid, and each lower spray rack is connected to a liquid infusion pipe; the upper inspection window is relatively above the support ring, and the lower inspection window is relatively below the upper inspection window: The support ring has a square groove on the top and a gathering cavity on the bottom. A restraining frame is welded inside the square groove. The restraining frame has mounting slots arranged in a rectangular array inside. Each mounting slot is equipped with a set of cubic wire mesh demisting components. The outlet of the lower spray rack points to the bottom of each wire mesh demisting component. The wire mesh demisting components in the same row are connected to the same set of lifting drive components above, and the lifting drive components are installed at the edge of the upper surface of the support ring; the wire mesh demisting components are flexible and movable structures; During the tower demisting stage, each wire mesh demisting component is folded and stored in the installation slot; During the tower cleaning phase, the lifting drive assembly drives the wire mesh demisting assembly to move up and down; the wire mesh demisting assembly alternately expands and contracts to shake off dust and impurities attached to the outer wall; the expanded wire mesh demisting assembly is in full contact with the cleaning water sprayed from the lower spray rack; The constraint frame includes a transverse plate body and a longitudinal plate body, and the longitudinal plates are vertically welded between adjacent transverse plates. The transverse plates and the longitudinal plates are welded into a grid shape. The rectangular cavity surrounded by the transverse plates and the longitudinal plates is a mounting groove. The upper surface of the transverse plate body is flush with the upper surface of the longitudinal plate body. The bottom end of the transverse plate body extends downwardly from the longitudinal plate body, and the extended portion is a positioning plate. Both sides of the wire mesh demisting assembly are assembled with the positioning plate. The wire mesh demisting assembly includes a wire mesh body, an upper plate body, a movable plate, and a lower plate body. The outer walls of the multiple movable plates are hinged by connecting rods to form a scissor-type lifting structure. The movable plate at the top is hinged to the upper plate body through a connecting rod, and the movable plate at the bottom is hinged to the lower plate body through a connecting rod. The two sides of the wire mesh body are fixedly connected to the upper plate body, the movable plate, and the lower plate body; the multiple movable plates drive the wire mesh body to expand or retract when they are lifted and lowered; the lower plate body is fixed in cooperation with the positioning plate.

2. The acid mist exhaust gas scrubber based on a wire mesh demister according to claim 1, characterized in that: A lower plug-in plate is provided at the bottom of the lower plate body, a third screw hole is opened inside the lower plug-in plate, a first screw hole is symmetrically opened inside the positioning plate, a socket is provided on the inner wall of the positioning plate, a second screw hole is opened inside the socket, the lower plug-in plate is inserted into the socket, and the locking screw passes through the first screw hole, the third screw hole and the second screw hole in sequence from the outside.

3. The acid mist exhaust gas scrubber based on a wire mesh demister according to claim 1, characterized in that: A gripping rod is fixed between the two upper plates, a clamp assembly is provided on the middle portion of the surface of the gripping rod, and a traction rope or a lifting drive assembly is connected inside the clamp assembly.

4. The acid mist exhaust gas scrubber based on a wire mesh demister according to claim 3, characterized in that: The lifting drive assembly includes a main box body, a hydraulic rod and a lifting rod. The top of each end of each lifting rod is connected to a hydraulic rod. The hydraulic rod is fixed to the side of the main box body. The main box body is arranged on the surface of the support ring. The clamp assemblies of the wire mesh demisting assemblies in the same row are all mounted on the lifting rod.

5. The acid mist exhaust gas scrubber based on a wire mesh demister according to claim 4, characterized in that: The main box is connected to the infusion pipe, and the main box is connected to each lifting rod in parallel through a hose. The lifting rod is a hollow structure, and the bottom surface of the lifting rod is vertically connected to multiple groups of upper nozzles. Each group of upper nozzles is located above a wire mesh demisting assembly. A group of upper nozzles includes a left nozzle and a right nozzle. The left nozzle and the right nozzle are respectively tilted to point to the two sides of the wire mesh body.

6. The acid mist exhaust gas scrubber based on a wire mesh demister according to claim 5, characterized in that: The wire mesh demisting assembly is in the installation stage: The wire mesh demisting components are connected in series in sequence through the traction rope, and the wire mesh demisting components are clamped and fixed with the traction rope by the clamp assembly; at this time, the wire mesh demisting components are tied and positioned by the tying belt; The worker stands on the restraint frame and pulls the traction rope to allow the series-connected wire mesh demisting components to enter the tower through the upper inspection window; The worker cuts the strapping, holds the handle, and inserts the wire mesh demisting components one by one into the installation slot, and inserts the lower plug-in board into the socket; The worker standing on the supporting grid screws the locking screws so that the locking screws pass through the first locking screw hole, the third locking screw hole, and the second locking screw hole; Connect the clamp assembly on the top of the wire mesh mist eliminator to the lifting rod assembly.

7. The acid mist exhaust gas scrubber based on a wire mesh demister according to claim 6, characterized in that: The wire mesh demisting assembly is in the flue gas treatment stage: The smoke is dispersed from the gathering cavity through the wire mesh bodies folded into one; The lower spray frame and the upper nozzle work synchronously, and the spray water contacts the particles in the flue gas in the wire mesh body, which intercepts the particles.

8. The acid mist exhaust gas scrubber based on a wire mesh demister according to claim 7, characterized in that: The wire mesh demisting assembly is in the cleaning process stage: Scheduled cleanup phase: The hydraulic rod drives each lifting rod to move up and down; The lifting rod drives the connected wire mesh demisting components to expand and retract, so that the dust attached to the outer wall of the wire mesh body is shaken off; The upper nozzle and lower spray rack work synchronously to regularly flush the main body of the screen; Replacement cleaning phase: Workers separate the clamp assembly and remove the locking screws; Draw the wire mesh defogger assembly from the upper inspection window.

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