DE51821C - Dehydrator - Google Patents

Description

IMPERIAL

PATENT OFFICE

PATENT LETTERING

CLASS 82: Drying devices.

(Franklin County, Pennsylvania, V. St. A.).

Dehydrator.

Fatentirt in the German Empire from April 18, 1889.

This invention relates to a continuous drying apparatus Fruits and vegetables and aims a more perfect exploitation of the heat, one easier handling of the introduction and removal of the dehydrated product and a better one than a control over the dehydration process that can be carried out with the previous apparatuses, a more perfect one Product than was previously possible.

The apparatus essentially consists of two chambers arranged one above the other, which are horizontal or slightly inclined and of which the lower chamber for heating serves for the drying air, while the upper chamber is the drying chamber. The drying chamber is divided lengthways into two by a partly fixed, partly movable partition Spaces through which, by means of endless chains, the containers guided on rails, who carry the items to be dried are passed through. The heat in the two rooms is to be regulated separately by using flaps, slides, etc., from the hot-air chamber the required quantity of drying air is fed into each room separately. The withdrawing ones Gases escape through an air shaft that is attached to the rear end of the apparatus while the whole operation can be regulated from the front of the apparatus. At the front is also the so-called »vestibule«, a facility which aims to when introducing new items to be dried and when removing the finished items Block part of the apparatus from the rest of the apparatus and make it accessible without disturbing the drying process.

The accompanying drawing shows a dehydrator constructed according to this invention, namely, Fig. 1 is a length average through the same, Fig. 2 is a plan view in section and Fig. 3 is an end view in section. Fig. 4 and 5 are detailed representations which are to be explained in more detail below.

It is A the drying chamber, B the heating chamber, C the air shaft, M a heating oven for steam, water or air. In the present case, the air in chamber B is heated by steam pipes m which are passed through room B from boiler M.

The drying chamber A is divided in the middle part by the solid, upright partition D towards the ends by rotating flaps D ¹ suspended from the ceiling (the flap on the right, which may also be missing, is not shown) into two rooms α and a ¹ . At each end of the partition D there is an upright axis ee ¹ , which above and below carry chain wheels gg ¹ , around which the endless chains s and s ^{l are} guided. The individual frames R are attached to these chains and are used to hold flat plates η made of wire mesh or perforated sheet metal which carry the food to be dried. The rear wall of the scaffolding R, which is attached to the chain, is solid, otherwise they are made of wood or metal rods

Claims (1)

assembled to allow air to pass freely. The axis e carries a conical wheel ο, in which the drive o ¹ engages, w.eircher by the handle H, are rotated; can to set the chains in motion. The frames R run at the bottom with the aid of grooving wheels i on rails u and are held at the top by rails w ¹ using rollers ρ . When operating the chains ss ¹ , the containers R must follow and run through; the two spaces α and α ¹ . At the ends, the running and guide rails are curved in a semicircle, and there are also inner auxiliary rails ν attached to guide the containers around these curves. to enable. A container R comes when the rails bend any so. the rotatable partition D ^{1 must} be opened in order to let it through, which can be done by means of the handle t. The wall D ¹ can, however, also be so light that the container automatically lifts it by pushing it to the side and allowing it to fall again after passing. The product to be dried is brought in at the front of the apparatus through the door Q, which can be lifted by chains χ. As soon as Q is open and the flap D ^{1 is turned} on its side, the plates with the food to be dried are placed on the shelves of one of the containers R, which has been turned in front of the door opening, and the door Q is then closed again. The container then continues by rotating the chains in the direction of the arrows until a new container arrives in front of Q, which is then filled. In this way all containers are filled. The drying process now takes place in that, through sliders E in the floor, which can be regulated from the front by means of a handle k, drying air is let into rooms a and a ¹ from B. The vapors and used heating gases to be discharged escape through the air shaft C, which is connected to the rooms α and a ¹ by means of an adjustable slide / which can be moved from the front by the chain h. In order to be able to empty the frames and refill them with food to be dried during continuous operation of the apparatus, without letting the outside air penetrate into the whole part of the drying chamber, the arrangement is made so that, as can be seen in FIGS. 1, 2 and 3, next to the fixed rear wall of the container R slider turned in front of the Thor Q can be pushed into the drying chamber from above, which shut off the rear space. These slides // can conveniently be connected to the gate Q by means of chains and rollers over an external frame Y , as shown in FIGS. 1 and 3, so that Q rises when / / sinks, and vice versa. The sliders / go in side; Fold tv, Fig. 2, and close tightly to the rear wall of the. -Vqe Q rotated container :. R on. q is a slot made in the gate Q, which allows the gate to be lifted or lifted above the continuous shafts of the cranks H and t. can be lowered; A, - nochi zweckmäfsigere Abschlufsvorrichtung for each reservoir R during the emptying and refilling Figures 4 and 5. In this case, the door Q is connected to a box S, which is closed all round by the floor, ceiling and side walls, and only;. the rear rope is open. This box S is running by means of rollers on rails \ and into the apparatus can be slid over a frame R as shown in Fig. 4 and 5 show. Since the rear wall of the scaffolding is solid, it is closed off all around by the box pushed over from room A , and the gate Q can now be opened to remove the drying doors and introduce new ones. If the scaffold is to be moved further, the box S ^{1 is} pulled back. The lateral protrusions in the. Room A, which can be seen in FIGS. 1, 2 and 3 and which are denoted by d. Boards or sheets, which are intended to pass the heating air from bottom to top through the. To guide scaffolding and to prevent it from rising sideways next to the scaffolding. In order to prevent heating air from entering the vestibule of chamber A when the vestibule is open, a separate air slide, FIG. 1, is arranged for the front room and can be moved by means of handle f. This front air inlet can also be arranged in such a way that the slider / flaps in the floor are automatically closed when going down. Patent claims: ι. A dehydrator with two superposed, separated by air slides, valves or the like ■ rooms ·, the lower houses the heating device, while in the upper is a device for storing and moving the dehydrated. is characterized in that the for receiving the to be dried. Substances serving scaffolds R are formed through the mediation of two endless. Chains. and chain pulleys on two standing shafts in a horizontal plane around a wall Z) that is vertical along the length of the drying room on one side and back on the other side in order to reach the front At the end of the wall when you turn back to be loaded and unloaded from the outside can. On such a dehydrator to close off the drying room against the outside air during loading and unloading: a) the arrangement of vertical sliders JJ, Fig. i, 2 and 3, which can be lowered to the right and left of the rear wall of the scaffolding to be operated; b) the arrangement of a sliding box 5, Fig. 4 and 5, which is pushed through an opening in the front wall over the scaffolding to be operated and its rear wall in this case is formed by the solid rear wall of the scaffolding. For this purpose ι sheet of drawings.