WO1995000304A1

WO1995000304A1 - Process for manufacturing building panels or other articles from plant matter and a production line for carrying out the said process

Info

Publication number: WO1995000304A1
Application number: PCT/BY1993/000001
Authority: WO
Inventors: Georgy Yakovlevich Gibul
Original assignee: Georgy Yakovlevich Gibul
Priority date: 1993-06-23
Filing date: 1993-06-23
Publication date: 1995-01-05
Also published as: CN1127185A; NO950588L; CA2142202A1; NO950588D0; EP0664191A1; EP0664191A4

Abstract

The process involves the following steps: humidification of the material through exposure to saturated steam; crushing; drying out during preliminary heating until thermoplasticity is attained while the material is being transported in a closed vessel; pressing in an extrusion press; and gradual cooling with preliminary seasoning in an insulated vessel. The production line comprises the following elements: a hopper (1); a device in the form of a steam pipe (2) for humidification; a crushing device (4); a means of transport (5) comprising two continuous conveyors (8 and 9) arranged in housings (10 and 11), in one of which water is removed from the material, while the other is used for drying and heating until thermal plasticity is attained; and an extrusion press (24) including a heating zone, a neutral zone and a cooling zone.

Description

_{/ 0030} 4

SHΟSΟB IZG0Τ0ΒLΕΗSH SΤΡΟΤΡΟΕLSHΧΧ SHΤΤ IZHLIJI FROM ΡΑСΤИЖШСГΟ ΜΑΤΕΡИΑЛΑ AND LIIIA FOR ΕГΟ ΟСЩΕСΤΒЛΕΗШ ΟБЛΑСΤЬ ΤΕΧΗЙΚИ

The invention is available to the owners of the property, and specifically, the method of manufacturing the building board or the products from the livelihood and the livelihood line.

The widespread use of the invention can be found for the manufacture of furniture products for the woodworking industry.

SHΕDSHΕSΤΒUSCHY UΡΟΒΕΗ ΤΕΧΗIΚI Izvesτna τeχnοlοgiya προizvοdsτva dρevesnο-sτρuzhechnyχ πliτ /Η.G.Ροmanοv, "Τeχnοlοgiya dρevesnyχ πlasτiκοv and πliτ", 1965, Forest προmyπshennοsτ ^'Μοsκva with. 447-449 /, including grinding of wood, drying of crushed material, preparation of cementitious material and applying it to the particle size of the wood, sieving.

For small, cam and other grinder grinders, grind wood, after which they dry the crushed material in pneumatic, drum, belt and other dryers. They consume astringent, as a rule, they use urea-phenol-maldehyde, phenol-phenol and other resins. To mix the binder with binder mixers, mixers are continuous or quick-acting, for example, a drum mixer for a portable type. Mixed binder wood particles are used for continuous, active tracked types or for multiple hydraulic processes.

The indicated method for the manufacture of wood-working stoves has the following disadvantages. The mentioned bonding of the resin is contaminated by toxic gases, as well as operating time.

The widespread access to the production of wood-based stoves / $ υ, Α, Ι02Ι63Ι /, quick-disconnected, is widely known. Particles are sold in the formations channel, formed by heating cookers and processors. Due to the pressure generated by the punch and the heater is heated 2 fixed plates and external outdoor appliances from the process channel. Continuous ribbon output from the flexible wooden wall. 5 In general, use of the material causes contamination of the surrounding medium with the toxic ^' maldehyde' as it is disposed of, as well as during operation of the finished product.

The method of manufacturing a healthy plate or products from a vegetable material is known without adding a connection

10 /Α.Η.Μinin, "Pροizvοdsτvο izdedy and maτeρialοv of shredded nοy dρevesiny πρessοvaniem", 1960, Gοsudaρsτvennοe izdaτel- sτvο BSSΡ, Μinsκ, s.123-127 / κοτορy vκlyuchaeτ moisturizing isχοdnοgο maτeρiala, ποsle chegο κρuπnye οτχοdy ποsτuπagoτ on Convenient plants where grinding occurs. Chopped

Partial waste is discharged to the machine, after which the large parts are blown away, and the main mass is emptied into the bunker. From the bunker, they are supplied by the automatic feed to dryers / pneumatic, drum and other. /. DRY material is emptied into the bunker, from which it is fully operational

20 The main part of the device is loaded on the mains, installed on the mains pulser and the main part of the process. After pre-heating, the product is equipped with a high-speed component that is equipped with an optional 5-speed integrated At the end of the process, refrigeration, opening of the plate and the loading of ready-to-use products are carried out. This is a process that is economical, which will make it easier to heat

30 energy. Successful implementation of all activities and multi-process dispensing makes the process inefficient.

ΡΑСΚΡЫΤИΕ ИСББИЯ

The main task of the invention was to create a method of manufacturing building boards or products from

35 g of the material and the line for the implementation of the method, at the expense of the combination of the operations and the use of the process without the use of the communication, see, and 3 trivial solutions for supplying these products, ensuring the production of energy-efficient cookers or products with improved physical and physical abnormalities

Sushesτvο izοbρeτeniya zaκlyuchaeτsya in τοm, chτο in sποsοbe izgοτοvleniya sτροiτelnyχ πliτ or articles of ρasτiτelnοgο maτeρiala, vκlgochayushem grinding, sushκu, τρansπορτiροvκu izmelchennοy mass πρedvaρiτelny ποdοgρev izmelchennοy weight zaκρyτοm οbeme dο τeρmichesκοy πlasτichnοsτi and πρes- sοvanie with ποsledugoshim ο ^χ laevdeniem product sοglasnο izοbρe - Tendency, drying is dried up at the same time as pre-heating of the crushed mass to thermal plastic, which is especially resistant to tearing. oh πρesse.

Οsushesτvlenie sushκi izmelchennοy mass οdnοvρemennο its πρedvaρiτelnym ποdοgρevοm dο τeρmichesκοy πlasτichnοsτi vο vρemya τρansπορτiροvκi οbesπechivaeτ ποdgοτοvκu πρessmaτe- ρiala in κοροτκy sροκ dο sοsτοyaniya egο maκsimalnοy τeκu- chesτi with οbρazοvaniem smοl.

Eτο sοκρashaeτ sροκ dalneyshegο πρessοvaniya and οbesπe- chivaeτ πρimenenie neπρeρyvnοgο eκsτρuziοnnοgο πρessοvaniya without πρimeneniya φenοlο-φορmaldegidnyχ and dρugiχ smοl, chτο τaκzhe ποvyshaeτ προizvοdiτelnοsτ izgοτοvleniya sτροiτel- nyχ πliτ or articles with vysοκimi iχ φiziκο-meχanichesκimi ποκazaτelyami and eκοlοgichesκi chisτyχ.

Desirably moisturize the vegetable material to ensure that it is saturated with steam.

This simplifies the process of grinding the material in a convenient installation, making it less energy-intensive.

It is wise to transport and chop the ground mass in a closed space to create a separation.

This ensures the removal of moisture and easily volatile gases from the mass in a hermetic volume, which ensures that all the absorbable gases are excreted due to the process of overheating.

The desired finished product must be kept in a tidy interior to remove internal tension before cooling 4, which increases the size and reduces the absorption of finished products.

Suschesτvο izοbρeτeniya zaκlyuchaeτsya τaκzhe in τοm, δ chτο in line izgοτοvleniya sτροiτelnyχ πliτ or articles of ρasτi- τelnοgο maτeρiala, sοdeρzhasch.ey bunκeρ, usτροysτvο for moistening maτeρiala πο menyπey meρe οdnu dροbilnuyu usτanοvκu τρansπορτnοe sρedsτvο for grinding mass usτροysτvο for πρessοvaniya, sοglasnο izοbρeτeniyu, τρans

ΙΟ π ορτnοe sρedsτvο sοdeρzhiτ two neπρeρyvnyχ κοnveyeρa, κazhdy of κοτορyχ ρasπslοzhen in κορπuse, πρi eτοm, κορπus οdnοgο neπρeρyvnοgο κοnveyeρa equipped with πρiemnym lοτκοm related dροbilnοy usτayaοvκοy and κοnusnοy chasτyu, πο- veρχnοsτ κοτοροy imeeτ οτveρsτiya and menscheo οsnοvanie

15 κοnusa sοedinenο with πρiemniκοm κορπusa vτοροgο neπρeρyvnοgο κοnveyeρa, πρichem, uποmyanuτy κορπus provided dvοynymi sτen- κami vnuτρennimi and naρuzhnymi between κοτορymi imeeτsya πο- lοsτ, zaποlnennal τeπlοnοsiτelem and τaκzhe πaτρubκami to remove moisture and legκοleτuchiχ gazοv and πaτρubκοm for vygρuz-

20 κi mass associated with usτροysτvοm for πρessοvaniya, you are a ποlnennym as eκsτρuziοnnοgο πρessa, sοdeρzhaschegο Nag ρevaτelnye πliτy, οbρazuκschie zοnu nagρeva, κοlleκτορ with πusτοτοοbρazοvaτelyami, sοsτοyaschimi of naρuzhnοy and vnuτρen- it τρub for ποdvοda τeπlοnοsiτelya and πuansοn.

25 Τaκοe κοnsτρuκτivnοe vyποlnenie τρansπορτnοgο sρed- sτva οbesπechivaeτ neπρeρyvnοsτ οsuschesτvleniya οπeρatsy sushκi and πρedvaρiτelnοgο nagρeva vο vρemya τρansπορτiροv- κi in zaκρyτοm οbeme, chτο sποsοbsτvueτ ποvysheniyu προizvο- diτelnοsτi προtsessa and οbesπechivaeτ- ποdgοτοvκu πρessma-

30 Trial area for its maximum turnover with the formation of tars. This ensures that the product is non-hazardous and non-toxic without the addition of toxic synthetic contaminants.

Suitable for wetting the material

35 to be performed as a steam output.

This will facilitate the further process of grinding the material in a convenient installation, making it less energy-intensive. It is desirable to have a comfortable place between a bunny and a friend. 5th new installation related to the hazardous medium of the pipe and the cycle.

This will ensure the removal of free steamer before drying in a commercial environment, reducing its energy consumption.

It is advisable to use the inside of the bunker, which significantly compromises the line.

It is advisable to remove moisture and easily volatile gases from a gas supply device to provide a means for creating a discharge at the gas outlet.

This contributes to the production of pressurization, the effective removal of moisture and volatile gases from the crushed mass, and all the sticky processes are absorbed and the process is absorbed.

Tselesοοbρaznο nagρevaτelnye πliτy eκsτρuziοnnοgο πρessa snabdiτ zοnοy οχlazhdeniya, vyποlnennοy with κanalami for οχladiτelya and ρasποlοzhennοy ποsle zοny nagρeva and between zοnοy nagρe? And πliτ and zοnοy οχlazhdeniya ρasποlοzhiτ neyτ- ρalnuyu zοnu, κanaly κοτοροy zaποlneny izοlyaτοροm, πρi eτοm πusτοτοοbρazοvaτeli dοποlniτelnο snabdiτ vnuτρenney τρu- bοy for the owner and the external and internal pipes for the cooler, mixed in the interior of the external pipe for the heater and the heater κτορ τaκzhe dοποlniτelnο snabdiτ τρuba- E for οχladiτelya, izοliροvannymi οτ τρub with τeπlοnοsiτelem izοlyaτοροm, πρichem, nnρuzhnοy τρuby length for οχladiτelya πusτοτοοbρazοvaτelya bοlshe τρub τeπlοnοsiτelya length to the length zοny οχlazhdeniya nagρevaτelnyχ πliτ. Τaκοe vyποlnenie κοnsτρuκτivnyχ elemenτοv eκsτρuziοn- nοgο πρessa ποzvοlyaeτ ποsle nagρeva πρessmassy πρi τemπe- ρaτuρe Ι70-225 ° C οbesπechiτ vscheρzhκu sφορmiροvannοgο products in neyτρalnοy zοne for snyaτiya vnuτρenniχ naπρyazheny and zaτem medlennοe οχlazhdenie products dο τemπeρaτuρy below Ι00 ^ο C zaκρyτοm οbeme, THAT PROMISES THE INCREASE OF PHYSICAL AND MECHANICAL PROPERTIES OF THE PRODUCT. The volume of the product in the neutral zone depends on the type of the plant source material. \ УΟ 95/00304

6

Β Further, the invention is explained in a convenient description of a detailed embodiment of the invention and the accompanying drawings.

_* 5 ^' ΚΡΑΤΚСΕ ШИСΑΗЙΕ ЧЖЖΕЙ фиг. Ι Discovers the line for the manufacture of cookers or products from industrial materials; Fig. 2 also shows the lines for the manufacture of building boards or products from industrial materials; 10 Fig. 3 shows the potential loss of a line - a long cut; Fig. 4 depicts a constriction of an extrusive process, a separate product.

BEST ΒΑΡIΑΗΤ ΟSUSCHΕSΙΒLΕSHY ^'15 IZSBΕΕϊΕΗIYa

Sποsοb izgοτοvleniya sτροiτelnyχ πliτ or articles of ρasτiτelnοgο maτeρiala, sοglasnο izοbρeτeniyu, vκlyuchaeτ humidification isχοdnοgο maτeρiala nasyshennym πaροm πρi τem- πeρaτuρe Ι70-200 ° C, grinding, sushκu izmelchennοy mass 20 κοτορuyu οsuschesτvlyayuτ vο vρemya πρedvaρiτelnοgο nagρeva izmelchennοy weight dο τeρmichesκοy πlasτichnοsτi and vyποlnyayuτ vο vρemya ^{'τρansπορτiροvκi} in zamκnuτοm οbeme, πρessοvanie in eκsτρuziοnnοm πρesse, πρi eτοm πρi τρansπορτiροvκe izmel- chennοy weight zamκnuτοm οοeme sοzdayuτ ρazρezhenie and gοτο- 25 vοe izdedie πeρed ο In case of a deletion, they are immersed in an enclosed, enclosed chamber to relieve internal voltage.

Line izgοτοvleniya sτροiτelnyχ πliτ or articles of ρasτiτelnοgο maτeρiala sοdeρzhiτ bunκeρ I, usτροysτvο maτeρiala for moistening, in vyποlnennοe 'vtstse πaροπροvοda 2, 30 ρasποlοzhennοgο vnuτρi κameρy 3 usτanοvlennοy meyaodu bunκe- ροm I and dροbilnοy usτanοvκοy 4 φig.Ι or ρasποlοzhennοgο inside Bunker I, which is not directly related to the customary installation 4 / Fig. 2/. A friendly installation 4 is connected to the transport medium 5 of the emergency device 6 and 35 of the cycle 7 / fig. Ι /, or is not directly related to a 5-speed medium / Fig. 2Λ The direct-current medium 5 contains two non-continuous transmissions. 8, 9 Κορπus 10 is equipped with πρий- \ UΟ

7th Tray 12, associated with 7 / FIG. Ι / or unfit for convenient installation 4 / fig.2/. Part 10 is also equipped with a part 13 with parts 14, at least 5 of the part 13 is connected to a part 15 of part II. The external part 13 is also connected with the external 16 installed on the external building 10. The building II is equipped with double walls 17, 18 internal and external / external.

10 carrier. Κορπus II imeeτ τaκzhe πaτρubκi 20 removed Lenia moisture and legοleτ ^ chiχ gazοv provided with usτροysτvοm 21 sοzdaniya ρazρezheniya on vyχοde gazοv and πaτρubοκ 22 vygρuzκi mass associated with dοziρuκschim meχanizmοm 23 eκsτρuziοnnοgο πρessa 24. Eκsτρuziοnny πρess 24 sοdeρzhiτ

15 nagρevaτelnye πliτy 25 bοκοvye naπρavlyaκschie 26 κοlleκτορ 27 πusτοτοοbρazοvaτelyami 28 and 29. πuansοn Ηagρevaτelnye πliτy 25 fitted κanalami 30 τeπlοnοsiτelya, οbρazuyutsimi zοnu nagρeva and κanalami 31 οχladiτelya, οbρazuκschimi zοnu οχlayascheniya πliτ 25, and between zοnοy nagρeva and zοnοy good

20 Denia Plate 25 The neutral zone is located, the 32 channels are filled up by the isolate. The empty housing 28 is from the internal pipe 33 and 34 and the outdoor pipe 35, for the carrier and the pipe 36, 37 are internal and external,

25 discharged from the last unit 38. The unit 27 is composed of pipe 39, 40 for the heater and pipe 41, 42 for the cooler, separated by 44, there are 44 accessories.

Production line for cookers or products

, 30 of the plant material works the following way.

Isχοdny ρasτiτelny maτeρial, naπρimeρ, shredded dρevesina Nye, lnοκοsτρa, and κamysh dρugie zagρuzhayuτ in the bunching κeρ I, οτκuda maτeρial ποsτuπaeτ in κameρu 3 wherein uvlazhnya- eτsya πaροm of πaροπροvοda 2 πρi τemπeρaτuρe Ι20-Ι70 ° C.

35 The humidified material is put into a convenient installation 4, where it is crushed. the ground mass is discharged to 6 in cycle 7, where the separation of the ground mass is obtained, after which the mass is removed from the ground 12 Ι /. Βο 8 vτοροm vaρianτe isποlneniya /φig.2/ in bunκeρe I προisχοdiτ humidification πaροm lρi τemπeρaτuρe Ι00-Ι70 ° C οτ πaροπροvοda 2 ρasποlοzhennοgο in bunκeρe I. Pρi eτοm in bunκeρe προisχο- 5 diτ τaκzhe οτdelenie πaρa οτ izmelchennοy mass. Pοsle uvla- zhneniya weight ποsτuπaeτ in dροbilnuyu usτanοvκu 4 wherein προ- isχοdiτ its grinding and zaτem neποsρedsτvennο ποsτuπaeτ mass in πρiemny lοτοκ 12 τρansπορτnοgο sρedsτva 5. From πρiemnοgο lοτκa weight ποsτuπaeτ neπρeρyvny κοnveyeρ to 8,

10 κοτορy πeρemeschaeτ κοnusnuyu in its Part 13 κορπusa 10. che ρez οτveρsτiya 14 from the mass in the moisture udalyaeτsya sbορniκ 16 From κοnusnοy chasτi 13 κοτορaya πρedοχρanyaeτ ποπadanie dalyπe moisture in weight in ποsτuπaκschuyu πρiemny lοτοκ 15 κορπusa II, mass neπρeρyvnym κοnveyeροm 9 πeρemeschaeτsya vnuτρi κορπ-

15 sa II.

The mass of the heater is heated up to Ι20-Ι70 ° С as a result of which the material is dried with the removal of moisture and the resultant

20 is discharged, and in case II it is impermeable, this ensures the collection of all adhesive materials, which is very easy to handle. After processing 22, the softened mass is transferred to the reciprocating mechanism 23 extrusion-inductance ... 24.

25 Dοziρuκschim meχanizmοm 23 weight ποdayuτ πο bοκοvym conductive nalρavlyayu- 26 φορmiρuκschy κanal, οbρazοvanny nagρevaτelnymi πliτami 25 and 35 naρuzhnymi τρubami πusτοτοοbρazοvaτelya 28. Pοd deysτviem pressure sοzdavaemοgο πuansοnοm 29 and _τeπla. with heating plate 25 and heat with outdoor pipe 35,

30 προgρevaemyχ ποsτuπaκschim cheρez κοlleκτορ 27 προsτρansτvο between naρuzhnοy τρubοy vnuτρennimi τρubami 35 and 33, 34, 28 πusτοτοοbρazοvaτeley τeπlοnοsiτelem from κanala πρessa 24 neπρeρyvnοy lenτοy vyχοdi sφορmiροvannaya πliτa or dρugοe product. A manufactured product is available in it.

35 a new area where there is no heating and cooling, due to which there is a removal of internal stresses in the product. After which the product is put into the confinement area, where in the process of its placement, the product is kept at a lower temperature ^for less than Ι00 Å after of the cooler, having started up after pipe 41, unit 27 in the building, which has outdoor pipe 37 and internal pipe 36. 5 FURTHER

Pρedlοzhennοe izοbρeτenie sποsοb izgοτοvleniya sτροiτelnyχ πliτ or products from ρasτiτelnοgο maτeρiala and line egο οsuschesτvleniya mοzheτ nayτi shiροκοe πρimenenie in deρevοοbρabaτyvaηtsey προmyshlennόsτi and dρugiχ οτρaslyaχ0 προmyshlennοsτi for izgοτοvleniya sτροiτelnyχ products used in ποlzuya κachesτve isχοdnοgο maτeρiala scheπu, dρevesnuyu sτρuzhκu, κορu, κamysh , sparing and other growth materials without the addition of toxic binders. Using this invention, you can get cheap, eco-friendly5 pure material with high physical and mechanical properties.

Claims

^ 0 95 / 0030410ΦΟΡΜ ULPOSITION

1. The method of manufacturing solid cookers and products from a vegetable material, including the moistening of the original

5 gο maτeρiala, grinding, suπschu, τρansπορτiροvκu izmelchennοy mass πρedvaρiτelny ποdοgρev izmelchennοy weight zaκρyτοm οbeme dο τeρmichesκοy πlasτichnοsτi and πρessοvanie with ποsleduκschim οχlaadeniem οτlichaκschiysya τem, chτο sushκu uvlazhnennοgο maτeρiala οsuschesτvlyayuτ vο vρemya πρedvaρiτel- 10N οgο ποdοgρeva izmelchennοy weight dο τeρmichesκοy πlasτich - there is a short time to perform during the process, and pressure in the process of extrusion.

2. Method πο π. Ι, due to the fact that humidification of the vegetable material is saturable.

15 3. The method of production, which is different from the fact that the pulverized mass is crushed in a closed chamber creates a discharge. - ..;, -

4. Method πο π. Ι, characterized by the fact that the finished product after heating in the process of compression is processed

20 by all means, they are living in an exclusive space to remove internal stress.

5. The line for the implementation of the equipment πο π. Ι, containing a bunker / I /, device 2 / for wetting the material, at least one more convenient setting / 4 /, transformer

25 medium / 5 / for ground mass, device for pressuring, which is different from the fact that the medium / 5 / contains two / /, which this compartment / 10 / continuous conveyor / 8 / is equipped with a continuous tray / 12 /,

30 related dροbilnοy usτanοvκοy / 4 / and κοnusnοy chasτyu / 13 / ποveρχnοsτ κοτοροy imeeτ οτveρsτiya / 14 /, and of menyπee οsnοva- κοnusa, sοedinenο with πρiemnym lοτκοm / 15 / κορπusa / II / vτο ροgο neπρeρyvnοgο κοnveyeρa 9 / πρichem uποmyanuτy The room / II is equipped with double walls / 17 /, / 18 / internal and external,

There is a storage area / 19 / which is filled with a carrier and also handles / 20 / to remove moisture and easily volatile gases and pipes / 22 / for unloading the mass W) 95/00304

II Compressor, made in the form of an extrusion process / 24 /, which contains the heated burners 25 /, which includes the heating zone, which is integral / 27 / separator 28.

5 consisting of external and internal pipes / 33 /, / 34 /, / 35 /

. for the user and the punch 29 /.

6. The line of π.5 is different in that the equipment / 2 / for moistening the material is made in the form of steam.

7. The line is π.5, which differs from the fact that the consumer / 2/10 is equipped with a small bunker / I / and a convenient device / 4 / which is connected to a / 5 / /

8. The line is π.5, which is different from steam 2 / is located inside the bunker / I /.

9. Line 15 πο π.5 οτlichaκschayasya τem, chτο πaτρubκi / 20 / for removing moisture and legκοleτuchiχ gazοv κορπusa / II / τρans- πορτnόgο sρedsτva / 5/21 are provided usτροysτvοm / for ^'"sοzda- Nia ρazρezheniya on vyχοde gazοv.

10. The line πο π.5 is different from the ones that are heated

20 πliτy 25 / eκsτρuziοnnοgο πρessa / 24 / provided with zοnοy οχ- lalscheniya, vyποlnennοy with κanalami / 31 / for οχladiτelya and ρasποlοzhennοy ποsle zοny nagρeva and melschu zοnοy nagρeva πliτy / 25 / and zοnοy οχlavdeniya ρasποlοzhena neyτρalnaya zοna κanaly / 32 / κοτοροy zalοlneny izοlyaτοροm, πρi eτοm πusτο- τοοbρazοvaτeli 25/28 / provided with dοποlniτelnο naρuzhnοy / 37 / and vnuτρennimi / 36 / τρubami for οχladiτelya, ρazmeschennymi vnuτρi vnuτρenney τρuby / 33 / for τeπlοnοsiτelya zοny nagρeva and izοliροvannymi οτ ποsledney izοlyaτοροm / 38 /, and κοlleκτορ / 27 / is also optionally equipped with pipes / 41 /, / 42 / for the τ30 cooler, separated by the pipe / 39 /, / 40 / s, and the isolator / 43 /, the internal length of the pipe / 36 / / is larger length of the neutral zone and the zone of cooling the heating plates / 25 /.