SU1329859A1 - Area for degreasing,cleaning and prime coating thin-sheet and corrugated rolled stock - Google Patents

Abstract

The invention relates to the degreasing and cleaning of thin-sheet and corrugated rolled products from preservative grease, rust, scale and other contaminants, the application of protective coatings on the rolled surface and can be used in various sectors of the national economy. The purpose of the invention is to improve the quality of the coating and reduce the production area due to the processing of rolled products in countercurrent. The products to be degreased, cleaned and primed are fed to the loading mechanism 10, after which it passes through to the degreasing area of the defatting unit 2, where preservative grease is removed from the surface of the sheet, then in the washing zone the mountain sheet is washed after leaving the degreasing unit 2, the sheet enters the drying chamber 3. where it enters the cell of the cassette. The second sheet follows the first into the drying chamber 3 and enters another cell of the cassette, etc. From the drying chamber 3, the sheet enters a day off Turning device 4. When the sheet enters the shot blasting unit 6, one side of the sheet is bombarded with small steel grit. The shot gage is rotated to treat the rear edge of the sheet. Subsequently, the cleaned sheets after the shot glue aggregate 6 enter the primer chamber 7 and the drying chamber 8 The use of the proposed site allows improving the quality of coatings, freeing up production areas, reducing operating costs. 12 il. (S ate 1 / / 2 with N5 CO CX) ate with f 5 F

Description

SUBSTANCE: invention relates to deacidification, 5an: -1K and cleaning of tokolis and corrugated corrugated paper from preservation grease, as well as avalanches, dross and loading km-shy and deposited on the top of iipoiiaTa for a1. coatings. The invention can find irimea-B of various branches of the national economy, in particular, in shipbuilding, and I specify the surface of products from JiHc-i oBoro} corrugated rolled products on me; an operating non-period.

The purpose of the invention is to improve the quality of the coating and the production of solids by processing n) okata in countercurrent.

FIG. 1 shows the proposed site, obi-1Y type; in fig. z - kzzre: -; A- A to fi | -. one; in fig. o - section 5 -B in FIG. i; on fi | -. 4 - times) ;; iJ-i i ;;: fng. 3; in fig. 5-- - section Г - Г sia (}) ng. 1: on fi1. 6 - Radzrez ZI --D on fi | . five; lia fig. E--1l incision on phi1 G; in fig. 8;) azz

LJ in FIG. one; in fig. 9 - section 3 3

in fig. eight; in fig. And) - - cut And - And in FIG. one; pas figs. 11 - section K-K, in FIG. 1: in FIG. 12 - section L - L in FIG. AND.

Degreasing site, clean up -; i I pyi - sheet products for the corrugation of the profile bar consists of TWO iiaijajuieJH -, - by iiOT04H) ix. Ji / lii degreasing and cleaning lines: -: and i-pyirroii. Is it skewed; 1 and degreased; si con - net from the following post grid; c;: - equipment: entrance control unit,. degreasing unit 2, camera 3 cyniKVi rolled from v.pagi, exhaust outlet 4.

Point-and-point line and rpyiST (contains descendants and consecutive;: 1) pass: - staging equipment; input bar} 5, the structure of which is analogous to the design of the inlet turner i, shot-breaking unit 6, primer chamber 7, drying chamber 8; ; paint and coatings and output tilter 9, but kogiggp knli - similar to output circuit: B.

The load of products on the canton. E. e. TI 1 is carried out by the mechanism of 10 loads, and V1m is the load of products from the output canton, 1 9 axes are fur 1 by measure 1 1 and zagr ZKgG The output of the 1st tilter 4 point by point. th.;: chi1-; and disintegrating connected; tsengll.m transm.m. term 12 with lined edges with gel:.; 5 gyu-tpoy line of cleaning and grooves. The entrance tilter 1 contains pein floors ang 3i for vertical neremus (according to TOHKC juseTO and corrugated rolled products, on an endless chain of which the carriage 14 is sunk non-sunk, on a frame 15 on which) asn.lo: Ke b vertical stand 16 with supporting rollers 17 and swivel frame 18, which from the pneumatic actuator 1) can be ycTaiioii-len in vertical or r-ry: k) nta .-. position, and together with new frame 18

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zankomtaet corresponding position and ob-) abativaemy sheet. Ma BCpTHKajH Hbix racks 16 are installed with the ability to lift i Ki and OHycKasn- -ri from and; Evmonriod 20 nod-dg frame 21, on which are installed, 1eni rollers 22 and 2.n.

The degreasing unit 2 is a device for lechanical and blasting with a closed circulation system of non-continuous action, containing a valuable roller conveyor 24, similar to the chain roller 13 of the turning device 1. The unit in iH is in the form of a through-topel of 25, separated by two zones: a degreasing zone 26 and a washer zone 27. From the outside, the toner. 25 is covered with a layer of tenlo-: -1 zol. ia the bottom of the tunnel is placed in a vat) and zl: -01iie 28 for a chain roller table 24. Z.l5 1SddS 1Zhg: and the pump is installed and the system is installed. 29. On the input side of uscTa, the installation. washing detergents; rovodpye z.ketki 30 co.) and from cairo leop, and from the exit side - two apa.totichnye cells of 31 L, i.: 1I rast1 1rani kan.ch liquido, made i-ibie with opportunities; adjusting the distance of the conveyor axis along the axis; -: HieTOK. fio to the sides of the tonne-. 25, along the step, oasno. Laid out the contours of the short-circuit pipes 32 with eoglaze-headings 33. The bottom of the pipe is 25 BijH .o.nHen o in the form of two baths 34 and 35 from the stack. but with which my solution and tromine are 5 of a stack in accordance with the corresponding tanks 36 and 37, one of which is (36) n) intended; .dl washing plant-: - .or, and the second (37) liter of the washroom

Along with tanks 36 and 37, HacocHijie units 38 and 39 are located, supplying washing solution and washing water to cat 32 for jetting around, and cleaning and washing them with brushes 30.

From the inlet side; -1 and the product outlet, in the upper part of the unit, exhaust umbrellas 40 and 4i are installed, the branch pipes of which are connected to the pipe; a forced zeitel line has been installed: gm ;;: 1yup.1; -iero in: 5d. And through the proem to the shop.

The flushing zone 27 is for liquid jetting, and with a closed circulation system and washing water heated to a temperature of -7Q-W ° C.

But constructions zone 27 washing ai.alo: h1chna the zone of degreasing only lashes 31, which are installed at the outlet of; -; ony, || G) c-dpaschgcheny h.p rubbing n drops: the newness of degreased sheets with the aim of 11 A: 1 speed cyniKVI.

The camera for 3 days of rental from moisture consists of a short-circuit of Cornus 42, a ten-ventilation aggregate 43 with air ducts 44 and two attempts ;; century) 45. The housing 42 of the chamber 3 is a carcass, built-up m3 pro (| stainless steel and (sheet steel). The space between the skin is filled with mineral wool 46. On the front and rear walls of the housing 42 drive rollers 47 and exhaust zones 48 with openings for the passage of rolling are located.In the body 42 of the chamber 3, along the longitudinal walls, at the level of the sheets to be dried and at the top of the chamber, air ducts 49 are installed with slit-shaped nozzles, which ensure an even and intensive supply of hot air mixture. - tilting The unit 43, which serves to preheat the air recirculated in the chamber, consists of a centrifugal fan 50 and a steam radiator 51. The suction duct 52 of the heat fan unit 43 is connected to an opening in the center of the chamber body 3.

The outer air ducts 44 are covered with a layer of insulation. The compressed air is supplied to the chamber 3 by sucking in air from the room through transport openings. The system of control and automatic regulation ensures the maintenance of air temperature within the prescribed limits. In order to reduce the length of the drying chamber 3 and improve the efficiency of the drying process inside the housing 42 of chamber 3, a cassette 54 with two cells 55 and 56 is installed on rails 53, each of which is equipped with an autonomous chain conveyor (57 and 58). The cells are formed by vertical posts 59, on the shoulders of 60 which are mounted rollers 61 for vertical support of sheets.

The cassette 54 is made with the possibility of a fixed shift by the amount of a across the axis of movement of the sheets to be dried using the pneumatic cylinder 62.

The drives of the conveyors 63 and 64 are moved together with the cassette 54. The cassette 54 is shifted by the amount a and is carried out immediately after the sheet has entered one of the transport cassettes 54 in order for the next sheet to be able to move onto the parallel transport system of the cassette 54.

The output positioner 4 is similar in design to the input positioner I. The difference is the presence of pneumatic cylinders 65 and 66, fixed with brackets 67 on vertical posts 16. Moreover, pneumatic cylinder 65 is designed to push the sheets from the dead position, and pneumatic cylinder 66 to push the sheets into horizontal position out of range of the chain roller table 13.

The shot-blasting unit 6 consists of two hollow welded chambers 68 and 69, the inlet and outlet face openings of which are equipped with feed 70 and clamping 71 paired rubber rollers.

The rollers 71 are made in the form of discs mounted for rotation on spring-loaded levers 72 and installed between the corrugations of the sheets to be processed.

The levers are fixed on a common vertical axis 73. Depending on the width of the sheets being processed, the rollers 70 and 71 can be installed in several rows vertically. N. 5Cameras 68 and 69 are arranged in series one after another and are connected through chute 74 with bucket elevators 75, shot-blasting shotguns, 76 and 77, mounted on chamber 68 on the right .Q side along the sheets being processed and shot-blasting devices 78 and 79, installed on the camera 69 on the left side along the processed sheets. Inside each of the chambers 68 and 69, opposite the shot-blasters, a support platform 80 consisting of a row of horizontal bridges is movable in the vertical direction. Two rubber-coated vertical rollers 81 and 82 between bridges 83 are fixed on the supporting platform. Rollers 81 and 82 are arranged symmetrically about the axis

 each of the chambers 68 and 69 and arranged in such a way that the plane of movement of the sheets being processed is a common tangent plane to the outer surface of the rollers 81 and 82.

5 Each shot blasting machine 76-79 is rotatable by an angle of 30 ° by means of an air cylinder 84. A supporting platform 80 is mounted on a support 85, which is driven by a screw drive 86. The chambers 68 and 69 are different from each other. The design is based on the fact that in chamber 68, platform 80 is made with the possibility of a fixed transverse stroke from pneumatic cylinder 87. The magnitude of the transverse stroke / g is determined by the height of the corrugations on the treated

5 corrugated sheet. Non-driven supporting rollers 88 are installed inside chambers 68 and 69. An air separator 89 is installed for separating the shot from dust and inclusions.

Chamber 7 primer contains a chain

 conveyor 90, support roller 91 and openings 92 for the passage of products. Paint spraying devices 93 are placed inside the chamber 7, applying protective coatings simultaneously from two sides of the sheets.

5 Camera 8 drying paint coatings are made similar to the camera 3 with the ears of products from moisture. The difference of its design is only that of electrical equipment and. fans are used in explosion-proof design.

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The sheet loading mechanism 10 is designed to supply sheets to be degreased, cleaned, and painted to the entrance tilter of the 1 degreasing line. The main units of the mechanism are turning5 on frame 94, cargo yoke 95 with pneumatic suction cups 96, pneumatic cylinder 97 for driving the swing frame 95, lifting table 98 with pneumatic actuator.

The loading mechanism 11 is similar in design to the loading mechanism 10 and is intended for lifting sheets from the rotary frame 18 of the exit edge 9, stacking them in packs on the lifting table 98.

The chain conveyor 12 is a welded frame 99 mounted on racks 100. The guide surfaces 101 of which are designed to move transport chains 102 along them. The conveyor 12 has 1 attachment 103 and drive station 104. The bearing surface of the chains 102 is above the surface of the pivoting frames 18, tilters 1 and 2, provided that the pivoting frames 18 are in a horizontal position.

The plot works as follows.

Products (thin sheets or corrugated profiles) to be degreased, cleaned and primed in packs 200-200 mm high are placed on a pneumatic lifting table 98 under the yoke 95 of the loading mechanism 10. Traverse 95 with pneumatic suction cups 96 is lowered onto the top sheet and vacuum is applied. Under the action of a vacuum, the suckers stick tightly to the sheet, and at the command of the control system, the pneumatic cylinder 97 lifts the pivoting frame 94 and the sheet is transferred to the horizontal pivoting frame 18 of the inlet beater 1.

Traverse 95 and pivoting frame 18 return to their original position, after which the pivoting frame 18 of the tilting device 1 from the pneumatic actuator 19 together with the sheet is rotated to a vertical position, in which the sheet is installed with the lower edge on the bearing carriages 14 of the chain roller table 13. After the sheet has occupied the vertical the position, the supporting frame 21 is lowered, after which the rotating frame 18 is lowered, the drive of the chain roller table 13 of the inlet tilting device 1 is turned on, and the sheet supported by the rollers enters the degreasing area 29 of the unit ezzhirivani 2 on roller 24, which is incorporated permanently during operation section. The sheet is held in a vertical position with the help of rollers 22 mounted on rails 28. Here, preservative grease and other contaminants are removed from the surface of the sheet using cleaning brushes 30 by continuous blasting with a hot cleaning alkaline solution coming from tank 36 using a pump installation 38 in a tubular circuit 32.

In the washing zone 27, the sheet is washed in the same way with hot water from aka using a pumping unit 39. The washing solution and washing water flow into the drainage baths 34 and 35, from where the spent washing solution and washing water flow into the tanks 36 and 37, respectively, and from there using pumping units 38 and 39 are again fed to the tube

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outlines 32 for degreasing and rinsing. At the exit of the degreasing unit 2, brushes 31 are mounted to rub down the drops of moisture, which makes the sheets more rapid in the drying chamber 3.

After exiting the degreasing unit 2, the sheet enters the chamber 3 of the pumpkin where it enters the cell 55 of the cassette 54. At the same time, the cell is in the working position and its conveyor 57 moves the sheet inside the chamber 3 of the tank. When the working position of the cell 55, the axis of its conveyor 57 coincides with the axis of the transport system of the re-entry line. After the rear edge of the sheet leaves the first cell 55 according to the command of the track sensors of the electric control system, the cartridge 54 is transversely displaced by an amount a equal to the distance between the axes of the cells 55 and 56. In this case, the pneumatic cylinder 62 moves the cartridge 54 to the left against the stop, thus aligning the axis of the conveyor 58 of the cell 56 with the axis of the transport system of the line, after which the drive of the conveyor 58 of the cell 56 is activated.

In cell 55, the sheet moves until the front edge of the sheet reaches its extreme position and stops at the command of the track sensors of the electrical control system. Following the first sheet, the second sheet enters chamber 3 and enters the cell 56 of the cassette 54. After the trailing edge of the second sheet has entered, the cell 56 is commanded by the track sensors of the electrical control system to the lateral shift of the cassette 54, while the pneumatic cylinder 62 moves the cassette 54 to the right the stop thus aligning the axis of the cell 58 and the conveyor 57 with the axis of the transport system of the degreasing line, after which the drive of the conveyor 57 is turned on and the sheet in the cell 55 is transported from the chamber 3 of the spaghetti and comes to its place after uyuschy (third) sheet like the first.

Thus, in the chamber 3 of the substrate, the sheet is subjected to draining as it enters the chamber 3, then it is kept in the chamber 3, finally dried out and heated to a predetermined temperature of 40-60 ° C. This design of the chamber 3 reduces its dimensions by half, as well as reduces the weight and heat losses to the environment and the heating of the chamber. After the chamber 3 of the sheet, the sheet enters the output turner 4, in the initial position of which the pivot 18 and the supporting 21 frames are omitted. After the trailing edge of the sheet has come to the tilter 4, the chain roller table 13, the tilter 4 stops. The pivoting frame 18 is raised, after which the supporting frame 22 is raised, then the pivoting frame 18 is lowered together with the sheet which collides from the dead position by means of pneumatic cylinders 65. After

The lowering of the sheet lies on its surface on the chain 102 of the conveyor 99 and is pushed out by the pneumatic cylinder 66, freeing the area of the transport system of the line. The support frame 21 is lowered, and the conveyor 12 transports the sheet to the rotary frame of the inlet beater 5 of the production cleaning and priming line.

In the initial position, the pivoting frame 18 is below the carrying surfaces of the transport chains 102 of the conveyor 12. After the sheet stops, the pivoting frame 18 rises together with the sheet to a vertical position, then the supporting frame 21 descends and fixes the sheet in a vertical position, and the pivoting frame 18 drops to a horizontal position . The chain roller conveyor 13 of the tilting device 5 is turned on, and the sheet is transported in a vertical position to the shot blasting unit 6.

In the initial position of the shot-blasting unit 6, the upper plane of the supporting step 80 is lowered below the upper edge of the sheet 50 mm away in order to prevent the shot from falling onto the surface of the supporting flat area. Shotblasting devices 76 and 78 are rotated by an angle; 10 °, at which the axial plane of the fraction torches of the said shot-blasting apparatus passes through the axes of the corresponding rubberized rollers 81 and 82, and the axial plane of the fractional torches of the shot-blasting apparatus 77 and 79 are perpendicular to the side walls of the chambers 68 and 69.

When the sheet approaches the chamber 68, it is gripped by the feed and pressure paired rollers 70 and 71 and supported by the rollers 88 is pushed into the chamber 68. The rollers 71 press the sheet against the feed rollers 70 and thus create the forces necessary to push the sheet through the chamber. After the sheet enters the chamber 68 for a certain distance, at which the sheet with the front edge covers the supporting platform 80 with the rollers 81 and 82 by an amount equal to mm, the fraction is fed into the shot-blasting apparatuses 76 and 77, while simultaneously turning the shot-blasting unit counterclockwise by an angle of up to 10 ° until the axial plane of the fraction torch is aligned with the axis of the rubberized roller 82. When the shotblasting device 77 is rotated, the shot edge of the sheet is machined.

Thus, small steel shot is bombarded by one side of the sheet passing through the shot-blasting chamber 63. Under the impact of the shot, the thin sheet is its left side, and the corrugated sheet with its corrugations rests on rollers 81 and 82, which increase the rigidity of the thin sheets at the place of processing and reduce resistance to sheet movement.

Since the supporting platform, both in height and in length, overlaps with the sheet being processed, it wears out slightly, in view of the fact that direct blows of 5 balers do not reach it. After the exit edge of the sheet reaches the edge of the support platform 80, at the command of the electrical control system, the shot-jet apparatus 76 is rotated counterclockwise, Q by the angle a; 10 ° and at the end of the turn, the fractional feed to both shot-blasting devices is turned off. The shot blasting unit 76 is rotated to treat the rear edge of the sheet with a shot and eliminate the direct impact of the shot torch on the support pad 80. After the sheet entrance edge leaves the chamber 68, the sheet is caught by the rollers 70 and 71 and transported further to the camera 69

At the entrance to the chamber 69, the sheet is gripped by the rollers 70 and 71 mounted

0 at the entrance to the chamber 69, and pushed, supported by the roller 88, into the chamber 60, inside which the opposite side of the sheet is cleaned with a shot-jet apparatus 78 and 79, and corrugated

5 sheets are supported by rubberized rollers 81 and 82 on the side with no protruding parts (corrugations). The sequence of operations on and off the supply of the fraction, rotation of the shot-blasting devices 78 and 79 is similar

0 the sequence of these operations performed in the chamber 68. There is no need for a fixed movement of the support platform 80 in the transverse direction in the chamber 69, since the protruding parts (corrugations) are on the cleaned side

5 sheets, while in chamber 68 the corrugated sheet rests on rollers 81 and 82 with its corrugations. After the sheet leaves the chamber 69, it is caught by the drive and pressure rollers 70 and 71 and pushed further onto the conveyor 90 into the chamber

0 primer 7.

Spent fraction from chambers 68 and 69 through chute 74 enters the bucket elevator 75 and further into the air separator 89, where it is separated from dust and inclusions and re-enters the pneumatic pullers of shot-jet apparatus 76-79.

The cleaned sheets after the shot blasting unit 6 enter the primer chamber 7, where simultaneously from two sides along the surface of the moving sheet by

0 spray guns 93 is applied a protective coating of a certain thickness.

After the primer chamber, the sheets enter the drying chamber 8 of paint coatings, where the protective coating applied to the surface of the sheet is dried in a stream of hot air, and the sheets are transported through chamber 8 in a special cassette 54 with two cells 55 and 56.

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The sequence of operations of the drying process of the paint-and-lacquer coating completely coincides with the sequence of operations described when drying the same product from moisture.

After the drying chamber 8, the sheet enters the output tilter 9, where immediately after the trailing edge of the sheet reaches the conveyor 13 of the tilting device 9, the pivoting frame rises to a vertical position, after which the supporting frame 21 rises, and the pivoting frame 18 after raising the supporting frame 21 lowers into horizontal position. Together with the pivoting frame 18, the sheet withdrawn from the equilibrium "dead position with the aid and pushing pneumatic cylinders 65" is also lowered. After the sheet is lowered, it is pushed out by the pneumatic cylinder 66 into the zone of the unloading mechanism 11, which captures the sheet with a traverse beam 95 and vacuum suction 96, after which the rotating frame 94 is rotated in the opposite direction by means of the pneumatic cylinder 97 and delivers the sheet to the lifting table 98, which after the arrival of the rotating frame 94 with the cargo crosshead 95 to the initial position on command of the system emy PLC rises until until its surface touches the sheet held crosspiece 95, and then stopped. The pneumatic pressure valve depressurises and the lifting table is lowered again to its original position.

Thus, at the site, the operations of degreasing, shot blasting and priming of thin-sheet and corrugated rolled products are automatically performed.

The turning of processed sheets at the exit from the re-activation line and transporting them in a horizontal position from the re-production line to the cleaning and priming line allows to combine two production lines with different speeds of transport systems in one continuous process flow.

In addition, the proposed solution allows lines to be installed parallel to the counterflow of sheets, which leads to more rational use of production areas and eliminates the need to use a sheet heating furnace in the cleaning and priming lines, since the heat obtained by the sheet in the extractor cell line is used. .

The use of the site for degreasing, cleaning and priming products provides the following technical and economic advantages:

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the quality of the coating is improved, since after blast cleaning there is no scaling and no rust on the thin sheets and corrugated profiles; the production area is released due to the absence of the kiln and the reduction of the length of the drying chambers for both lines and improved layout of the production lines; saving material and fuel necessary for the manufacture and operation of the kiln; reduced operating costs.

Claims (1)

Invention Formula A section for defatting, cleaning and priming thin-sheet and corrugated rolled products consisting of a degreasing production line containing a rental mechanism, equipped with supporting rollers, an in-line tilter in series, a degreasing unit, a drying chamber, an output tilter, as well as a production cleaning and priming line, containing an inlet tilter equipped with rolling rollers, shot blasting chambers, a primer chamber, a paint coating drying chamber, an exit canto A unloading mechanism and mechanism, characterized in that, in order to improve the quality of the coating and reduce the production area by treating the rolled metal in countercurrent, the cleaning and primer production line is installed parallel to the degreasing production line and equipped with a cross-section vehicle connecting the degreasing line tilter and the output a tilter of the cleaning and priming line, while the degreasing unit is equipped with rubbing brushes installed at the exit from it, and each drying chamber of the sleep unit A parallel cell cassette is mounted with the possibility of reciprocating transverse movement by an amount equal to the distance between the cell axes; successively installed shot-blasting chambers, in each of which two shot-blasting machines are installed with the possibility of processing one side of the sheet op ponents on a turntable and provided with two vertical rollers located opposite to shot-blasting machines. 95 v . /five cpus.Z nineteen bb .one -at J qjusA (rig 5 S445 : - / -: - -Ж-уС if.2 60 S3 54fie.7  .  N 47 e.7  . .v4 /, -  V x xv x /  N .. S4 75 - well 3 3 (I rig h-77 FIG. ten fus.ff rffff / Li 702S1 Phage./2