SE125712C1

SE125712C1 -

Info

Publication number: SE125712C1
Authority: SE
Publication date: 1949-01-01

Description

Uppfinnare: F. LjungstrOm. Inventor: F. LjungstrOm.

Det är kant att utvinna oljeprodukter genorn uppvarmning av skifferberg in situ. En dylik oljeframstallning kan genomforas pa satt som t. ex. framgar ay patentet nr 121 737, till yilket hanvisas for en narmare beskrivning harav. Det har nu visat sig att aven om skifferberget, som oftast är fallet, är tackt av ett mer eller mindre maktigt skikt av kalksten resp. ett jordlager, komma till foljd av del: Yid avgasningen i skifferberget radande overtrycket pyrolysgaser att i viss utstra.ckning tranga upp emot markytan. Enar vissa bestandsdelar i pyrolysgaserna, sâsom kolsvavla, aro giftiga, blir den overliggande jorden darfor olamplig for odling genom att den steriliseras och att ants& bakterifloran dor. It is time to extract oil products by heating slate rock in situ. Such an oil production can be carried out in a manner such as e.g. appears from Patent No. 121,737, to which reference is made for a more detailed description thereof. It has now been shown that even though the slate rock, which is usually the case, is thanks to a more or less powerful layer of limestone resp. a layer of soil, to be followed by part: Yid the degassing in the slate rock exacerbating the overpressure pyrolysis gases to to some extent. If certain constituents of the pyrolysis gases, such as carbon sulfur, are toxic, the overlying soil therefore becomes unsuitable for cultivation by being sterilized and causing bacterial flora.

Uppfinningen her till gin uppgift all eliminera denna nackdel och att astadkomma en enkel och billig metod for bedrivande ay vfixtodling, yilket vasentligen ernas darigenom all denna bedrives ovanpa ett varnat skifferberg, som avgasats in situ for utvinning av oljeprodukter, och sedan mellan skifferberget och odlingsjorden anbringats en belaggning, genom vilken varme passerar i riktning uppat, men vilken motverkar resp. hindrar ett framtrangande av skadliga gaser till odlingsjorden. Det i skifferberget befintliga varmemagasinet, som kan underhallas genom forbranning av i skifferberget efter oljeutvinningen kvarvarande skifferkoks, nyttogores enligt uppfinningen under en mycket Fang tidsperiod och mar-ken oyanpa det avgasade skifferberget far darfor ett mangdubbelt storre yarde an forut. De kostnader, som enligt uppfinningen pedlaggas, atervinnas salunda mer an val genom vardestegringen av marken och uppfinningen medgiver vaxthusodling i industriell shale. The object of the invention is to eliminate this disadvantage and to provide a simple and inexpensive method for conducting crop cultivation, the essence of which is thereby all this is carried out on top of a warned slate rock, which is degassed in situ for extraction of oil products, and then placed between the slate rock and the cultivation soil. a coating, through which heat passes in the upward direction, but which counteracts resp. prevents the advancement of harmful gases to the arable land. The heat reservoir present in the slate rock, which can be maintained by burning slate coke remaining in the slate rock after oil extraction, is utilized according to the invention for a very long period of time and the soil on the degassed slate rock therefore has a much larger yard than before. The costs according to the invention are thus recovered more than choice through the increase in the value of the land and the invention allows greenhouse cultivation in an industrial shale.

Uppfinningen beskrives narmare i det fogjande under hanvisning till pa bifogade riffling i perspektiv och sektion yisade avsnitt ay ett for sattets genomforande preparerat fall. The invention is described in more detail in the following with reference to the accompanying rifling in perspective and sectioned sections in a case prepared for the implementation of the method.

PA ritningen betecknar 10 ett pa avgasat och darfor varmt skifferberg liggande lager av kalksten eller ocksh av jord, darest den senare kvarlegat under avgasningen och sa.- lunda blivit steril genom pyrolysgaserna. i'vlarkytan tackes med ett skikt 12 av grovt gnus eller grovkrossad skifferaska eller annat for gaser latt genomslappligt material. Oven- detta poresa skikt anbringas elt skikt 14 av finfordelat material, t. ex. ett mineral, sasom pinnmo eventuellt innehallande lera eller andra tatande jordarter, vilket skikt bildar ett relativt tatt holje. Skiktet 14 kan aven helt eller delvis utgOras av asfalt eller plat. I det porosa skiktet 12 inlagges ett kanalsystem 16, som kan vara utformat pa liknande salt som tackdiken i en Aker, d. v. s. vara sammansatt av ror 18 t. ex. av lergods, vilka i korta hang-der *gas intill varandra, sd att spalter 20 forefinnas mellan dem. Till kanalsystemet Oro anslutna skorstenskanaler 23, genom yilka i skiktet 12 nedifran upptrangande gaser utsugas och avledas till den yttre atmosfaren. Denna utsugning kan ske genom naturligt drag, eftersom temperaturen i skiktet 12 fir hOgre an i fria luften, eller ocksa kunna flak-tar anyandas. Kanalsystemet 16 kan aven utnyttjas for tackutdikning av odlingsoutradet, d. v. s. vatten kan avledas genom roren, som da strOmmar i deras undre del, under det att rOrens byre del tjanstgor som gaskanaler. In the drawing, 10 denotes a layer of limestone or also of soil lying on degassed and therefore hot slate, where the latter remains during the degassing and thus becomes sterile through the pyrolysis gases. The surface is covered with a layer 12 of coarse gravel or coarsely crushed shale ash or other gas-permeable material. Above this porous layer, a layer 14 of finely divided material is applied, e.g. a mineral, such as pinnmo possibly containing clay or other aggregate soils, which layer forms a relatively taken shell. The layer 14 can also be wholly or partly made of asphalt or slab. A channel system 16 is inserted in the porous layer 12, which may be formed on salt similar to the roof ditch in an Aker, i.e. be composed of tubes 18 e.g. of earthenware, which in short hangs * gas next to each other, so that gaps 20 are present between them. Chimney ducts 23 connected to the duct system Oro, by gases intruding in the layer 12 from below, are extracted and diverted to the external atmosphere. This extraction can take place by natural draft, since the temperature in the layer 12 is higher than in the open air, or it can also flatten anyandas. The duct system 16 can also be used for roof thickening of the cultivation outlet, i.e. water can be diverted through the pipes, which then flow in their lower part, while the upper part of the pipe serves as gas channels.

Ovanpd det tata skiktet 14 kan med fordel anbringas ett porost skikt 22 av samma art som skiktet 12 och detta skikt 22 Or da i sin tur tfickt av ett tatande skikt 24 motsvarande skiktet 14. Odlingsjorden, i figuren betecknad med 26, lagges ovanpa det oversta tata skiktet 24. I det porosa skiktet 22 inlagges ett kanalsystem lampligen i sinsemellan parallella langder, vilka liksom i kanalsystemet 16 kunna ligga p0 ett inbordes aystand ay en eller nagra meter. De olika kanallangderna kunna Oven i detta fall vara sammansatta av korta rel. 18 med spatter mellan dessa. En eller flera av skiktets 22 kanaler, i figuren betecknade med 28, sta genom ett ror 30 i forbindelse med en flat eller kompressor 32, medan en eller flera andra kanaler 34 utmynna i ayloppsror 36. Darest, som oftast Or fallet, pa odlingsmarken Or uppbyggt ett dri-vhus 38, 2— — kunna 1.i:wen 30, 36 vara anbragta i var sin Elide av detta hus. Endera eller hada arterna av ror kunna mynna i drivhuset resp. hava grenror 40 med ondiastningsventil 42 for rorens flirbindande med ytterluftem. Genom att medelst flakten 32 infora luft i kanalen eller kanalerna 28 kommer denna luft att passera det gasgenomslappliga skiktet 22 i riktning mot kanalen eller kanalerna 34 fiLir att sedan avga genom roren 36. A porous layer 22 of the same type as the layer 12 and this layer 22 can advantageously be applied on top of the wet layer 14. Then, in turn, a thick layer 24 corresponding to the layer 14. The cultivation soil, in the figure indicated by 26, is laid on top of the top layer. tata layer 24. In the porous layer 22, a channel system is suitably inserted in mutually parallel lengths, which, as in the channel system 16, can lie at an inboard position of one or a few meters. The different channel lengths can in this case also be composed of short rel. 18 with spatters between them. One or more of the channels 22 of the layer 22, indicated in the figure by 28, stand through a tube 30 in connection with a flat or compressor 32, while one or more other channels 34 open into ayle tubes 36. Darest, as is usually the case, on the arable land Or built a drive-house 38, 2— - can 1.i: wen 30, 36 be placed in each Elide of this house. Either or hate the species of beets can end up in the greenhouse resp. have manifolds 40 with ondiastningsventil 42 for the rudder flir binding with outer air. By introducing air into the duct or ducts 28 by means of the surface 32, this air will pass the gas-permeable layer 22 in the direction of the duct or ducts 34 and will then be discharged through the pipes 36.

Medan skikten 12, 14 och de liar belagna kanalsystemen hindra underifran kommande gaser frdn att tranga upp till odlingsjorden hava skikten 22, 24 och till dessa horande kanalsystein till uppgift att ventilera skikten, ifall odlingsjordens temperatur sommartid blir for hog pa grund av varmeavgivningen frail skifferberget. Darest det byre kanalsystemet shlunda i dylikt fall a" i funktion ph natten, dâ temperaturen r lagre, astadkommes en nedkylning av skikten 22, 24, vilken befordras av luf tens innehall av fuktighet resp. genom att ventilationsluften upptager fukt i skiktet 22 och darigenom binder varme. While the layers 12, 14 and the well-covered duct systems prevent underlying gases from penetrating up to the cultivation soil, the layers 22, 24 and to these associated duct systems have the task of ventilating the layers, if the temperature of the cultivation soil in summer is too high due to heat dissipation from the slate. In such a case, when the temperature is lower, a cool duct system is thus provided, a cooling of the layers 22, 24 is effected, which is promoted by the content of moisture in the air or by the ventilation air absorbing moisture in the layer 22 and thereby binding heat.

FOr att underhalla den pa djupet liggande skiffermassans temperatur verkstalles med vissa mellanrum, exempelvis nattetid en forbranning av skifferkoks genom att man nedfor forbranningsluft i skifferberget genom ledningar och med tillhjalp av sirskilda kompressorer eller flaktar (icke visade). In order to maintain the temperature of the deep-lying slate mass, a combustion of slate coke is carried out at certain intervals, for example at night by lowering the combustion air into the slate rock through pipes and with the aid of separate compressors or flakes (not shown).

Uppfinningen ar givetvis ej begransad till den beskrivna mer eller mindre specifika utforingsformen utan kan varieras i vidstracktaste bemarkelse mom ramen av den till grund for uppfinningen liggande iden. The invention is of course not limited to the described more or less specific embodiment, but can be varied in the broadest sense within the framework of the idea underlying the invention.

Claims

Patent claim:

1. Set to grow plants, characterized by the fact that this cultivation is carried out on top of a warm slate rock, which has been degassed in situ for the extraction of oil products, and then a coating has been applied between the slate rock and the cultivation soil, through which heat passes upwards but which counteracts resp. prevents the advancement of harmful gases to the arable land.

2. Device for carrying out the set according to claim 1, characterized by a pH of the hot slate rock and a coating arranged below the cultivation soil, which is composed of a layer (12) of gas-permeable material and of a relatively Hit layer (14) lying on top of it. ).

Device according to claim 2, characterized by a duct system (16) connected to the first layer (12) for extraction or the intrusive gases into the open air either by natural draft in a chimney (23) or by means of a flue.

Device according to claim 2 or 3, characterized by a different coating stored by the ph coatings (12, 14), which is also composed of a lower, gas-permeable layer (22) and an upper, relatively thin layer (24), ph which later the cultivated soil (26) is laid.

Device according to claim 4, characterized by a duct system (28) inserted in the lower layer (22), which is flowed through by cooling air with the aid of a flake or compressor (32). Stockholm 1949. Kungl. Boktr. P. A. Norstedt & Sour 490089 GENERAL STAEIENS LITOGR. INSTITUTION