CN106836947B - Frame type enamel plate anti-corrosion chimney and installation method thereof - Google Patents
Frame type enamel plate anti-corrosion chimney and installation method thereof Download PDFInfo
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- CN106836947B CN106836947B CN201710186536.0A CN201710186536A CN106836947B CN 106836947 B CN106836947 B CN 106836947B CN 201710186536 A CN201710186536 A CN 201710186536A CN 106836947 B CN106836947 B CN 106836947B
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
- E04H12/28—Chimney stacks, e.g. free-standing, or similar ducts
Abstract
The invention provides a frame type enamel plate anti-corrosion chimney and an installation method thereof, aiming at the defects of high manufacturing cost, complex construction, inconvenient use and the like of an anti-corrosion inner barrel of an industrial chimney in the prior art, the inner barrel of the anti-corrosion chimney is formed by assembling enamel plates, each enamel plate is locked by a bolt and a nut component, a high-temperature-resistant sealing sheet is arranged between the adjacent enamel plates, and acid-resistant and high-temperature-resistant elastic sealing glue is adopted to fill gaps between the adjacent enamel plates, so that the sealing performance is good, the enamel plates are welded on a steel frame through the arranged fixing plates, the welding area is small, the construction is convenient, the dead weight of the enamel plates is small, the chimney is installed by adopting a flip-chip method, the installation can be realized only by adopting conventional hoisting equipment, the construction is very convenient, the manufacturing cost of the enamel plates is lower than that of titanium steel composite plates, and the manufacturing cost of the chimney can be reduced.
Description
Technical Field
The invention relates to a chimney, in particular to a frame type anti-corrosion chimney with an enamel plate and an installation method of the frame type anti-corrosion chimney.
Background
Industrial chimneys are mostly composed of a frame and an inner cylinder, and since most of the gas discharged from chimneys is high-temperature and corrosive gas, the inner cylinder needs to be made of a material having corrosion resistance. The existing anti-corrosion inner cylinder used in the chimney is generally formed by welding a plurality of titanium steel composite plates, the titanium steel composite plates have better high-temperature-resistant anti-corrosion performance, but the titanium steel composite plates are very high in price due to the fact that the titanium steel composite plates contain rare materials, the anti-corrosion inner cylinder is manufactured by the titanium steel composite plates, the manufacturing cost is very high, the titanium steel composite plates are very heavy, large-scale hoisting equipment is needed during installation, the titanium steel composite plates are required to be welded all around, more welders are needed to be configured during installation, the installation requirement is higher, and the construction is more complex. In the prior art, an anticorrosion inner cylinder is built by adopting a steel plate scale coating scheme, large-area scale coating is needed for the inner cylinder, the construction quality is not easy to guarantee during large-area scale coating construction, scale coating is volatile and toxic, the construction environment is severe, the scale coating is harmful to constructors and has negative effects on the surrounding environment, and the coating is easy to crack and fall off in the subsequent use process and needs to be frequently checked and repaired.
Disclosure of Invention
The invention provides a frame type enamel plate anti-corrosion chimney aiming at the defects of high manufacturing cost, complex construction, inconvenient use and the like of an anti-corrosion inner barrel of an industrial chimney in the prior art, the inner barrel of the anti-corrosion chimney is formed by assembling enamel plates, all the enamel plates are locked by bolts and nut assemblies and are welded on a steel frame through a set fixing plate, the welding area is small, the construction is convenient, the dead weight of the enamel plates is small, the anti-corrosion chimney can be installed only by conventional hoisting equipment, and the construction is very convenient. The manufacturing cost of the enamel plate is lower than that of the titanium steel composite plate, so that the manufacturing cost of the chimney can be reduced.
The invention aims to be realized by the following technical scheme: a frame type enamel plate anti-corrosion chimney comprises a steel frame and an inner barrel, wherein the inner barrel is formed by splicing a plurality of enamel plates which are connected with each other at the periphery, each enamel plate comprises a base steel plate, the periphery of each base steel plate is provided with a hem bending towards the outer side of each base steel plate, at least one hem is fixedly connected with a fixing plate extending towards the inner side of each hem, and the fixing plate is connected with the steel frame; the inner surface of the base body steel plate and the outer surfaces of the folded edges are compounded with enamel layers, high-temperature-resistant sealing pieces are arranged between the folded edges of the adjacent enamel plates, through holes penetrating the folded edges are formed in the folded edges, the folded edges of the adjacent enamel plates are locked through bolts and nut assemblies arranged at the through holes, and acid-resistant and high-temperature-resistant elastic sealing glue is coated at the joints of the inner surfaces of the adjacent enamel plates. According to the frame type enamel plate anti-corrosion chimney, the enamel plates of the inner barrel are connected through the bolts and the nut assemblies, the defect that the enamel plates cannot be welded is overcome, and the connecting structure is stable. And the enamel plate has smaller self weight and lower manufacturing cost relative to titanium steel, can be installed only by conventional hoisting equipment, and can save the manufacturing cost. The joint of the inner surfaces of the adjacent enamel plates is coated with acid-resistant and high-temperature-resistant elastic sealant, so that gaps possibly existing at the joint can be sealed, and the sealing performance of the side wall of the inner barrel is improved.
Preferably, the outer surface of the base steel plate is provided with a reinforcing rib. The strengthening rib can increase enamel plate's structural stability, makes enamel plate structure more firm.
Preferably, the reinforcing rib is of an L-shaped structure or a T-shaped structure, and the outer end of the reinforcing rib of the L-shaped structure or the T-shaped structure is welded on the steel frame. Design into L shape structure or T shape structure with the strengthening rib, be favorable to increasing strengthening rib outer end and steel frame's welding area, increase structural stability, simultaneously, the interior end area that strengthening rib and matrix steel plate are connected is still little, is difficult for making matrix steel plate warp when welding the strengthening rib on matrix steel plate in the enamel board production process. Meanwhile, the enamel plate is welded on the steel frame through the reinforcing ribs on the outer side, the welding area is small, only a small number of welders are needed, and the installation difficulty is low.
Preferably, the through hole is a circular hole or a kidney-shaped hole. The relative position of the adjacent enamel plates is adjusted by adjusting the positions of the bolt and the nut assembly in the waist-shaped hole, so that the installation positions of the enamel plates are more accurate.
Preferably, the high-temperature-resistant sealing piece is a gasket made of polytetrafluoroethylene or fluororubber and having elasticity. The elastic gasket made of polytetrafluoroethylene or fluororubber can play a role in buffering, can reduce the natural vibration period of the enamel plate, enables the natural vibration period of the enamel plate to be less than 0.02 and the frequency to be greater than 30Hz, prevents the adjacent enamel plates from being damaged by vibration between the enamel plates, and meets the use environment of a flue.
Preferably, the outer portion of the inner cylinder is further provided with a heat insulation layer, the heat insulation layer is provided with a fixing piece, and the fixing piece is welded at the outer end of the reinforcing rib. To the environment of discharging fume that is higher than 55 ℃, need set up the heat preservation outside the inner tube, the heat preservation passes through the mounting welding in the strengthening rib outer end, can promote the structural stability of heat preservation.
Preferably, the fixing plate is arranged at the edge of the outer end of the inner side of the folded edge.
Preferably, the fixing plate is welded to the steel frame. The enamel plate is welded on the steel frame through the fixed plate, so that the enamel plate is prevented from being deformed due to the fact that the enamel plate is directly welded on the steel frame, the welding area of the enamel plate on the steel frame through the fixed plate is small, only a small amount of welders are needed, the installation difficulty is low,
preferably, the base steel plate, the folding edge and the fixing plate are of an integral structure, and the folding edge and the fixing plate are formed by bending the base steel plate. The base steel plate, the folded edge and the fixed plate are manufactured by adopting the process of bending the whole steel plate, the production process is simple, and the deformation of the base steel plate possibly caused by welding can be avoided.
Preferably, the outer surface of the base steel plate and the inner surface of the folded edge are sprayed with a ground coat layer, and epoxy zinc-rich paint is coated outside the ground coat layer. Can prevent the enamel plate from being corroded from the outer side, and prolongs the service life.
A method for installing a frame type enamel plate anti-corrosion chimney comprises the following steps:
the first step is as follows: manufacturing a positioning mould on a construction site; the positioning mould can be used for drawing a ring or manufacturing a positioning part on a construction site and used for positioning each enamel plate.
The second step is that: assembling a first circle of enamel plates on a positioning die in a segmented and ring-formed manner, wherein one side, provided with an enamel layer, of each enamel plate faces towards the inner side, placing a high-temperature-resistant sealing piece between the hem of the left and right adjacent enamel plates, and locking the hem on the adjacent enamel plate at the position of a through hole by using a bolt and a nut assembly;
the third step: installing a steel frame outside the enamel plates, and welding the fixed plate and the reinforcing ribs on each enamel plate on the steel frame;
the fourth step: inspecting the inner surface of the enamel layer on the enamel plate, inspecting the damage of the enamel layer by using an electric spark detector and naked eyes, repairing the damaged part of the enamel layer by using a special enamel repairing agent, and detecting the repaired position again by using the electric spark detector after the special enamel repairing agent is cured;
the fifth step: filling acid-resistant and high-temperature-resistant elastic sealant at the joint between the inner side surfaces of the left enamel plate and the right enamel plate, and plugging the gap at the joint by using the acid-resistant and high-temperature-resistant elastic sealant;
and a sixth step: lifting the assembled first ring of enamel plates and the steel frame by using a lifting tool, and taking anti-falling measures; the anti-falling measure can be used for hoisting the assembled first ring of enamel plates and steel frames by using another hoisting tool or supporting the assembled first ring of enamel plates and steel frames by using a supporting frame, so that the assembled enamel plates and steel frames are prevented from falling when other enamel plates are assembled below the assembled enamel plates and steel frames, and the construction safety is ensured;
the seventh step: assembling a second ring of enamel plates on a positioning mould below the lifted enamel plate, repeating the second step to the fifth step, placing a high-temperature-resistant sealing sheet on the hem at the upper end of the second ring of enamel plate, tightly locking and connecting the hem at the upper end of the just assembled ring of enamel plate and the hem at the lower end of the last ring of enamel plate by using a bolt and a nut assembly, simultaneously connecting a steel frame at the outer side of the just assembled ring of enamel plate with a steel frame at the outer side of the last ring of enamel plate, filling acid-resistant and high-temperature-resistant elastic sealant at the joint between the inner side surfaces of the upper and lower adjacent enamel plates, and plugging a gap at the joint by using the acid-resistant and high-temperature-resistant elastic sealant;
eighth step: lifting the assembled enamel plates, repeating the seventh step, and sequentially installing all the enamel plates and the steel frame from top to bottom;
the ninth step: and installing a heat-insulating layer on the outer side of the enamel plate, and welding the fixing piece on the heat-insulating layer at the outer end of the reinforcing rib or on the steel frame.
Preferably, the detection voltage of the electric spark detector is 750V.
Preferably, the through hole in the second step is a waist-shaped hole, and the relative position of the adjacent enamel plates is adjusted by adjusting the positions of the bolt and the nut assembly in the waist-shaped hole.
Compared with the prior art, the invention has the following beneficial effects: the enamel plates of the inner barrel formed by the frame type enamel plate anticorrosive chimney are connected with the nut assembly through bolts, the enamel plates are welded on the steel frame through the fixing plates and the reinforcing ribs on the outer sides, the welding area is small, only a small amount of welders are needed, the installation difficulty is low, the enamel plates are relatively small in self weight and low in manufacturing cost relative to titanium steel, the enamel plates can be installed only through conventional hoisting equipment, and the manufacturing cost can be saved. The high temperature resistant gasket that sets up between the enamel board can play the performance of buffering, prevents that the fine vibrations between the enamel board from causing the damage to adjacent enamel board, and the junction of adjacent enamel board internal surface scribbles acidproof high temperature resistant elasticity and seals up the seam that probably exists in this position, promotes the sealing performance of inner tube lateral wall. By adopting the installation method, the enamel layer of the enamel plate can not be damaged, the defect that the enamel plates cannot be welded is overcome, the connection structure is stable, the sealing performance between the enamel plates is good, and meanwhile, the enamel plate has good high-temperature resistance, corrosion resistance and acid and alkali resistance and can meet the performance requirement of a chimney. The outer surface of the base steel plate and the inner surface of the folded edge are sprayed with a ground coat layer, and epoxy zinc-rich paint is coated outside the ground coat layer, so that the enamel plate can be prevented from being corroded from the outer side, and the service life of the enamel plate is prolonged. The inner surface of the enamel layer on the enamel plate is smooth, which is beneficial to the flow of smoke.
In conclusion, the invention has better high and low temperature resistance and corrosion resistance effects, smooth inner surface, less self weight, convenient construction and moderate manufacturing cost, and is beneficial to the flow of smoke.
Drawings
FIG. 1 is a schematic view of the structure of the present invention;
FIG. 2 is an enlarged view of FIG. 1 at E;
FIG. 3 is a top view of the present invention;
FIG. 4 is an enlarged view at F of FIG. 3;
FIG. 5 is a schematic view of the joint structure of adjacent enamel plates;
the labels in the figure are: 1. the enamel plate comprises a steel frame, 2, an inner cylinder, 3, an enamel plate, 4, a base steel plate, 5, a hem, 6, a fixing plate, 7, an enamel layer, 8, a high-temperature-resistant sealing sheet, 9, a through hole, 10, a bolt and nut assembly, 11, an acid-resistant and high-temperature-resistant elastic sealant, 12, a reinforcing rib, 13, a heat preservation layer, 14, a fixing piece, 15 and a bottom glaze layer.
Detailed Description
The invention will be further described with reference to examples of embodiments shown in the drawings to which:
example 1
As shown in fig. 1-5, a frame-type enamel plate anti-corrosion chimney comprises a steel frame 1 and an inner tube 2, wherein the inner tube 2 is formed by splicing a plurality of enamel plates 3 which are connected with each other all around, each enamel plate 3 comprises a base steel plate 4, the peripheries of the base steel plates 4 are provided with flanges 5 which are bent towards the outer sides of the base steel plates 4, at least one flange 5 is fixedly connected with a fixing plate 6 which extends towards the inner sides of the flanges 5, the fixing plate 6 is arranged at the edge of the outer ends of the inner sides of the flanges 5, the fixing plate 6 is welded on the steel frame 1, the base steel plates 4, the flanges 5 and the fixing plate 6 are of an integral structure, and the flanges 5 and the fixing plate 6 are formed by bending the base steel plates 4. Enamel layers 7 are compounded on the inner surface of the base steel plate 4 and the outer surface of the hem 5, a high-temperature-resistant sealing piece 8 is arranged between the hems 5 of the adjacent enamel plates 3, and the high-temperature-resistant sealing piece 8 is a gasket made of polytetrafluoroethylene and has elasticity. Be equipped with the through-hole 9 that runs through hem 5 on hem 5, through-hole 9 is waist shape hole, locks through setting up bolt and nut assembly 10 at through-hole 9 position between the hem 5 of adjacent enamel plate 7, adjusts the relative position of adjacent enamel plate 3 through adjusting bolt and nut assembly 10 position regulation in waist shape hole. The joint of the inner surfaces of the adjacent enamel plates 3 is coated with acid-resistant and high-temperature-resistant elastic sealant 11. The outer surface of the base steel plate 4 is provided with a reinforcing rib 12, the reinforcing rib 12 is of an L-shaped structure, and the outer end of the reinforcing rib 12 of the L-shaped structure is welded on the steel frame 1. And a heat-insulating layer 13 is further arranged outside the inner cylinder 2, a fixing piece 14 is arranged on the heat-insulating layer 13, and the fixing piece 14 is welded at the outer end of the reinforcing rib 12.
The outer surface of the base steel plate 4 and the inner surface of the folded edge 5 are sprayed with a ground coat 15, and the ground coat 15 is coated with epoxy zinc-rich paint for preventing the outer side of the base steel plate 4 from being corroded.
A method for installing a frame type enamel plate anti-corrosion chimney comprises the following steps:
the first step is as follows: manufacturing a positioning mould on a construction site; the positioning mould is used for drawing a circle on a construction site to position each enamel plate 3;
the second step is that: assembling a first circle of enamel plates 3 on a positioning die in a slicing and looping manner, wherein one side, provided with an enamel layer 7, of each enamel plate 3 faces towards the inner side, a high-temperature-resistant sealing piece 8 is arranged between the folded edges 5 of the left and right adjacent enamel plates 3, then locking the folded edges 5 on the adjacent enamel plates 3 at the position of a through hole 9 by using a bolt and nut assembly 10, wherein the through hole 9 is a waist-shaped hole, and the relative position of the adjacent enamel plates 3 is adjusted by adjusting the position of the bolt and nut assembly 10 in the waist-shaped hole;
the third step: installing a steel frame 1 outside the enamel plates 3, and welding the fixed plate 6 and the reinforcing ribs 12 on each enamel plate 3 on the steel frame 1;
the fourth step: inspecting the inner surface of the enamel layer 7 on the enamel plate 3, inspecting the damage of the enamel layer 7 by using an electric spark detector and naked eyes, repairing the damaged part of the enamel layer 7 by using a special enamel repairing agent, detecting the repaired position again by using the electric spark detector after the special enamel repairing agent is cured, wherein the detection voltage of the electric spark detector is 750V;
the fifth step: filling acid-resistant and high-temperature-resistant elastic sealant 11 into the joint between the inner side surfaces of the left and right adjacent enamel plates 3, and plugging the gap at the joint by using the acid-resistant and high-temperature-resistant elastic sealant 11;
and a sixth step: lifting the assembled first ring of enamel plates 3 and the steel frame 1 by using a lifting tool, and taking anti-falling measures;
the seventh step: assembling a second ring of enamel plates 3 on a positioning mould below the lifted enamel plates 3, repeating the second step to the fifth step, placing high-temperature-resistant sealing pieces 8 on the hem 5 at the upper end of the second ring of enamel plates 3, connecting the hem 5 at the upper end of the just assembled ring of enamel plates 3 with the hem 5 at the lower end of the last ring of enamel plates 3 in a locking way by bolts and nut assemblies 10, simultaneously connecting a steel frame 1 on the outer side of the just assembled ring of enamel plates 3 with a steel frame 1 on the outer side of the last ring of enamel plates 3, filling acid-resistant and high-temperature-resistant elastic sealing glue 11 in the joint between the inner side surfaces of the upper and lower adjacent enamel plates 3, and plugging the gap at the joint by the acid-resistant and high-temperature-resistant elastic sealing glue 11;
eighth step: lifting the assembled enamel plates 3, repeating the seventh step, and sequentially installing all the enamel plates 3 and the steel frame 1 from top to bottom;
the ninth step: an insulating layer 13 is arranged on the outer side of the enamel plate 3, and fixing pieces 14 on the insulating layer are welded on the outer ends of the reinforcing ribs 12 or the steel frame 1.
The detection of the enamel plate of the frame type enamel plate anti-corrosion chimney is carried out as follows:
| inspection item | Standard of merit | Detection method | Index (es) |
| Appearance of the product | ISO28763 | Visual inspection of | No glaze beading, scaling and falling off |
| Sulfuric acid resistance | ISO28706-2 | 18h weight loss measurement with boiling sulfuric acid of 30% concentration | ≦10g/㎡ |
| Citric acid resistant | ISO28706-1 | Corroding with 10% citric acid at room temperature for 15min | Grade AA |
| Alkali resistance | QB/T1855 | Corroding with 10% sodium carbonate at room temperature for 15min | Without light loss |
| Temperature rapid change (aqueous medium) | ISO28764 | Keeping the temperature at 200 deg.C for 5min, and adding into 23 + -3 deg.C water medium for 5 times | Without cracks |
| Temperature rapid change (air medium) | ISO28764 | Keeping the temperature at 450 deg.C for 5min, and adding into air medium at 23 + -3 deg.C for 5 times | Without cracks |
| Adhesion force | EN10209 | Impact of 1.5kg impact bar with height of 750mm | ≧ 2 |
| Voltage resistance | 750V voltage copper brush detects enamel layer surface | No electric spark |
The comparison table of the common flue chimney anticorrosive material and the chimney flue material of the invention at home and abroad:
| anticorrosive material for chimney | Characterised by the feature |
| Glass flakes | Easy cracking and falling off, poor construction environment and easy danger |
| Foam glass brick | Uneven quality, great influence by construction and long construction period |
| Titanium alloy plate | The material is expensive and is rare metal; the manufacturing cost is high, and the construction difficulty is high; galvanic corrosion easily occurs between the titanium alloy and the steel plate |
| Glass fiber reinforced plastic | Uneven quality, great influence from construction, difficulty in long-term high temperature resistance |
| Enamel plate | Good anti-corrosion effect, smooth inner surface, convenient construction, moderate price, excellent performance and high and low temperature corrosion resistance, is beneficial to the flow of smoke gas |
After the frame type enamel plate anti-corrosion chimney is used for a long time, the following problems possibly exist: in the process of operation and use, the corrosion of the local enamel plate 3 caused by the corrosion of smoke and acid liquor can be carried out on the defects which are not detected in the manufacturing and installation processes, and the defects can be detected and repaired by adopting the following methods: checking whether rust exists on the enamel plate 3, analyzing the cause of the rust, removing the rust caused by corrosion of the base steel plate 4 on the non-enamel plate 3, and confirming whether the base steel plate 4 on the enamel plate 3 needs to be repaired; repairing positions with corrosion and rust on the base steel plate 4, repairing by adopting a method of patching a repair plate, selecting a repair plate with a proper size, drilling and tapping holes on the enamel plate according to hole positions of the repair plate, installing the repair plate on the positions, needing repairing, on the enamel plate 3 by using bolts, coating acid-resistant and high-temperature-resistant elastic sealant 11 on the repaired positions on the enamel plate 3 and the repair plate, fastening the bolts, and completing the repair, wherein the standard repair plate is a stainless steel plate with the thickness of 3mm, and holes are pre-formed in the repair plate.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
Claims (9)
1. A frame type enamel plate anti-corrosion chimney comprises a steel frame (1) and an inner barrel (2), and is characterized in that the inner barrel is formed by splicing a plurality of enamel plates (3) which are connected with each other at the periphery, each enamel plate comprises a base steel plate (4), the periphery of each base steel plate is provided with a hem (5) which is bent towards the outer side of each base steel plate, at least one hem is fixedly connected with a fixing plate (6) which extends towards the inner side of each hem, and the fixing plates are connected with the steel frame; enamel layers (7) are compounded on the inner surface of the base steel plate and the outer surfaces of the folded edges, high-temperature-resistant sealing pieces (8) are arranged between the folded edges of the adjacent enamel plates, through holes (9) penetrating through the folded edges are formed in the folded edges, the folded edges of the adjacent enamel plates are locked by bolts and nut assemblies (10) arranged at the through holes, and acid-resistant and high-temperature-resistant elastic sealing glue (11) is coated at the joint of the inner surfaces of the adjacent enamel plates;
the installation method of the frame type enamel plate anticorrosive chimney comprises the following steps:
the first step is as follows: manufacturing a positioning mould on a construction site;
the second step is that: assembling a first circle of enamel plates on a positioning die in a segmented and ring-formed manner, wherein one side, provided with an enamel layer, of each enamel plate faces towards the inner side, placing a high-temperature-resistant sealing piece between the hem of the left and right adjacent enamel plates, and locking the hem on the adjacent enamel plate at the position of a through hole by using a bolt and a nut assembly;
the third step: installing a steel frame on the outer side of the enamel plate, and welding a fixing plate and reinforcing ribs on each enamel plate on the steel frame;
the fourth step: inspecting the inner surface of the enamel layer on the enamel plate, inspecting the damage of the enamel layer by using an electric spark detector and naked eyes, repairing the damaged part of the enamel layer by using a special enamel repairing agent, and detecting the repaired position again by using the electric spark detector after the special enamel repairing agent is cured;
the fifth step: filling acid-resistant and high-temperature-resistant elastic sealant at the joint between the inner side surfaces of the left and right adjacent enamel plates, and plugging the gap at the joint by using the acid-resistant and high-temperature-resistant elastic sealant;
and a sixth step: lifting the assembled first ring of enamel plates and steel frames by using a lifting tool, and taking anti-falling measures;
the seventh step: assembling a second ring of enamel plates on a positioning mould below the lifted enamel plate, repeating the second step to the fifth step, placing high-temperature-resistant sealing pieces on the folded edges at the upper ends of the second ring of enamel plates, locking and connecting the folded edges at the upper ends of the enamel plates and the folded edges at the lower ends of the enamel plates which are just assembled by bolts and nut assemblies, connecting a steel frame outside the enamel plates which are just assembled with a steel frame outside the enamel plates, filling acid-resistant and high-temperature-resistant elastic sealant in the joints between the inner side surfaces of the upper and lower adjacent enamel plates, and plugging the gaps at the joints by the acid-resistant and high-temperature-resistant elastic sealant;
eighth step: and lifting the assembled enamel plates, repeating the seventh step, and sequentially installing all the enamel plates and the steel frame from top to bottom.
2. A frame-type enamel plate anti-corrosion chimney according to claim 1, characterised in that the outer surface of the base steel plate is provided with reinforcing ribs (12).
3. A frame type enamel plate anti-corrosion chimney according to claim 2, wherein the reinforcing ribs are L-shaped or T-shaped, and outer ends of the reinforcing ribs of the L-shaped or T-shaped structure are welded to the steel frame.
4. A frame-type enamel plate anti-corrosion chimney according to claim 1, wherein the through-hole is a circular hole or a kidney-shaped hole.
5. A frame-type enamel plate anti-corrosive chimney according to claim 1, wherein the high temperature-resistant sealing piece is a gasket made of teflon or fluororubber and having elasticity.
6. A frame-type enamel plate anti-corrosion chimney according to claim 2 or 3, characterized in that an insulating layer (13) is further provided outside the inner tube, and a fixing member (14) is provided on the insulating layer and welded to the outer end of the reinforcing rib.
7. A frame-type enamel plate anti-corrosive chimney according to claim 1, wherein the electric spark detector has a detection voltage of 750V.
8. A frame-type enamel plate anti-corrosion chimney according to claim 1, wherein the eighth step is followed by a ninth step of: and (4) installing a heat-insulating layer on the outer side of the enamel plate, and welding the fixing piece on the heat-insulating layer at the outer end of the reinforcing rib or on the steel frame.
9. A frame-type enamel plate anti-corrosion chimney according to claim 1, wherein the through holes in the second step are slotted holes, and the relative position of adjacent enamel plates is adjusted by adjusting the position of the bolt and nut assembly in the slotted holes.
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| CN201710186536.0A CN106836947B (en) | 2017-03-27 | 2017-03-27 | Frame type enamel plate anti-corrosion chimney and installation method thereof |
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| CN201710186536.0A CN106836947B (en) | 2017-03-27 | 2017-03-27 | Frame type enamel plate anti-corrosion chimney and installation method thereof |
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| CN108952305A (en) * | 2018-07-23 | 2018-12-07 | 浙江开尔新材料股份有限公司 | A kind of pressing plate linking enamel plate Anti-corrosive chimney and its installation method |
| CN113616017B (en) * | 2021-09-08 | 2023-10-20 | 今创集团股份有限公司 | Back-to-back seat and manufacturing method thereof |
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| DE4415178A1 (en) * | 1994-04-29 | 1995-11-02 | Flucorrex Ag Flawil | Corrosion-proof composite tube for use in contact with flue gas etc. |
| CN2548994Y (en) * | 2002-01-18 | 2003-05-07 | 陈泽峰 | Enamel steel assembled tank for sewage treatment |
| RU2004137087A (en) * | 2004-12-20 | 2006-05-27 | Сергей Михайлович Хожаев (RU) | SMOKE PIPE AND METHOD FOR ITS MANUFACTURE |
| CN102145844A (en) * | 2011-03-28 | 2011-08-10 | 江南嘉捷电梯股份有限公司 | Car wall structure of elevator car |
| CN202371736U (en) * | 2011-11-07 | 2012-08-08 | 北京恺岚一方科技发展有限公司 | Steel internal cylinder chimney expansion joint anticorrosion system used after wet desulphurization |
| CN202594576U (en) * | 2012-05-30 | 2012-12-12 | 江南嘉捷电梯股份有限公司 | Car wall arrangement structure |
| CN204006053U (en) * | 2014-05-12 | 2014-12-10 | 邱伟朝 | A kind of chimney and flue with cage modle framework inner liner metal enamel structure |
| CN206646910U (en) * | 2017-03-27 | 2017-11-17 | 浙江开尔新材料股份有限公司 | A kind of frame-type enamel plate Anti-corrosive chimney |
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Address after: 321036 333 Guangshun Street, Jinyi Urban Economic Development Zone, Jinhua City, Zhejiang Province Applicant after: ZHEJIANG KAIER NEW MATERIALS Co.,Ltd. Address before: 321031 Zhejiang province Jinhua City Jindong Cao Zhai Zhen Industrial Zone Zhejiang Kaier new materials Limited by Share Ltd Applicant before: ZHEJIANG KAIER NEW MATERIALS Co.,Ltd. |
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Application publication date: 20170613 Assignee: Zhejiang Kaier Environmental Technology Co.,Ltd. Assignor: ZHEJIANG KAIER NEW MATERIALS Co.,Ltd. Contract record no.: X2023980042335 Denomination of invention: A frame type enamel plate anti-corrosion chimney and its installation method Granted publication date: 20220610 License type: Common License Record date: 20230924 |