SU924936A1 - Device for heat treatment of foodstuffs - Google Patents

Abstract

A FOOD TREATMENT DEVICE FOR FOOD PRODUCTS, comprising a chamber, the front sides of which are hollow with openings for discharging the flue-air mixture, a pressure chimney installed in the central part of the chamber along its height, and a supply and removal system for the flue-air mixture, which, in order for the purpose of intensifying the flue flow to discharge and discharging the flue-gas mixture, is used for the purpose of the intensification, and for discharging the flue-air mixture, in order to intensify the flue pipe and in the supply and discharge system of the flue gas mixture, in order to intensify the flow, and for the purpose of the intensification, for the purpose of the intensification of the flue gas discharge and discharge system of the flue gas mixture. and improving the quality of the finished product by uniformly distributing the smoke-air mixture throughout the chamber, as well as reducing energy consumption and simplifying the design, at the bottom of the chamber over its width , at the location of the pressure exhaust duct there are distribution channels for supplying the smoke-air mixture to the chamber, and the pressure smoke duct has output collectors installed in the corresponding (L Distribution channels, and in the upper part of the latter along the axis of the chamber, removable unequal height guides are strengthened, the height of which increases to the periphery of the camera.

Description

19 Image (; thawing refers to food industry, to equipment for thermals (1 food processing, especially for smoked and cytiiKH fish, and meat products. Tunnel type devices are known, containing a chamber, the end sides of which are hollow with holes for removing the air-flue mixture, and the system for supplying and discharging the air-flue gas (ICE). The drawbacks of the known devices are the inability to use for smoking products, since the ICE will go through the gaps between spaces and doors. the productivity of the injection manifold into the production room; performance is low since every load and unload of the product stands when the doors are open, the ICE supply must be shut off due to leakage through the doorways to the production room; high aerodynamic resistance to flow ICE, because of the considerable distance from one pressure end to the other (suction), leads to a decrease in its speed and pressure, and, consequently, to a decrease in performance and an increase in energy consumption. and decreasing the effect on the possibility of the product resin Splashing during smoking product in connection with a sharp change of channels for passage of the internal combustion engine at the end face discharge chamber; ICE movement is organized only in one direction longitudinal, from one end to the other. A device is also known to contain a chamber with a discharge chimney installed in its central part along its height and a supply and discharge system for the smoke-air mixture. However, in such a device, the ICE flow is organized only in the transverse direction, which does not allow creating a uniform effect on the product with large chamber lengths and, as a result, causes unproductive energy and material costs. In addition, such a device has the following disadvantages; the inevitability of tarring a product located close to a large number of horizontal chimney slots, which were resistance to the flow of internal combustion engines, will contribute to the condensation of tar from Him, and an increase in the distance between the product and the slots will reduce the effective volume of the chamber; the inability to work with a continuous cycle due to the need to stop the circulation system at the time of loading and unloading the stands with the product, because of the difficulty of evenly distributing the flow through the multiple gaps in the chamber volume, overpressure zones will form that will cause the engine to exit through the open doors ; design complexity and sanitization; unequal conditions for the effects of ICE on the product in terms of chamber volume. The aim of the invention is to intensify the process and improve the quality of the finished product by uniformly distributing the smoke-and-air mixture throughout the chamber, as well as reducing energy costs and simplifying the design. This is achieved in that the proposed device for thermal processing of food products contains a chamber, the end sides of which are hollow with openings for evacuating the flue-air mixture, installed in the central part of the chamber along its height, a forced flue duct and an inlet and exhaust system for flue air. At the bottom of the chamber, along its width, at the location of the pressured flue duct, distribution channels are placed for supplying the flue air mixture to the chamber, and the pressure chimney has output collectors installed in the respective distribution channels, and in the upper part of the latter along the chamber axis, removable unequal height guides are fastened which increases towards the periphery of the chamber. FIG. 1 shows a schematic of a device for heat treatment of food products, a plan view; in fig. 2 shows a section A-A in FIG. on fig.Z - section bb in fig. one; in fig. 4 is a view along arrow B in FIG. 2; in fig. 5 is a diagram of the movement of the working environment in the tunnel chambers, plan view. The device for thermal processing of food products consists of one or two tunnel chambers 1 (see Fig. 1), a section; the first is a continuous vertical partition 2 in the extended direction, and a recirculation system for supplying and discharging working heat. At the ends of the chambers 1 there are hollow doors 3 (Fig. 2), outer 4 and inner 5, the surfaces of which form a vertical channel 6 (see Fig. 1, 2) On the inner surface 5 each of the doors 3 have horizontal windows 7 (Fig. 3) through which chambers 1 communicate with channel 6. On windows 7, there are curtains 8 for adjusting the discharge of working medium from the chamber. Above doors 3 at the ends of chambers 1, suction headers 9 are installed (see Fig. 1, 2, 4) with flaps 10, using pipes 11-15 connected to the mixing chamber 16 of the recirculation system, equipped with nozzles 17 and 18 for supplying smoke and conditioned air respectively. The mixing chamber 16 is in common with the suction inlet of a medium-pressure centrifugal fan 19. The exhaust pipe of the fan 19 through the distributor 20 of the flow of the working medium with a damper 21 adjustable discharge into the atmosphere, the heater 22 and the pipe 23 is connected to a vertical chimney 24 installed in the central part of the partition 2. The divider 25 is connected to the duct 24, output collectors 26 which led to the transverse distribution channels 27, made in the floor of each chamber across the entire width of its working part and open from the side of the product carriers. The openings of the output headers 26 are directed to the bottom STI of the opposite wall of the chamber (see Fig. 3). The channels 27 are covered by removable grids 28, to which, at the bottom, uneven guide plates 29 are attached, arranged parallel to the longitudinal axis of the chamber. The height of the plates 29 increases with distance from the collector 26. The plates 29 themselves are bent so that the lower ends are directed toward the collectors 26, and the upper toward the chamber ceiling. The proposed device works as follows. H 64 Crates with fish in suspension or on the floor (not shown). They are loaded when doors 3 are opened into one or simultaneously into two chambers 1 from one end. Loading is carried out on one or two stands in each chamber at o) time intervals depending on the total processing cycle of the product and the number of stands in the chamber. Moreover, at first, one or two stands of the help mechanism of the movement (not shown) are unloaded from the chamber np; i, the remaining stands are moved towards the unloading doors by the length of the unloaded stands, and then the semi-finished products are loaded onto the empty space. . After loading and unloading, the doors are closed. Thus, each stand passes along the entire length of the tunnel chamber 1, which is exposed to the air mixture. From the mixing chamber 16, the smoke-air mixture is blown by the fan 19 into the heater 22, where it is heated to the temperature required by the process, and through the pipe 23 enters the vertical discharge chimney 24. In the flow divider 25, the smoke-air mixture is divided into two parts and fed into the distribution channels 27. When leaving the collectors 26, the flue-air mixture dramatically expands and, changing the direction of its movement, is captured by differently high plates 29, evenly under pressure enters the chamber 1 of its entire width ine bottom upwards with respect to the cage with fish m. At the same time, resinous substances in the smoke-air mixture are deposited in the tank 30. Since there are no suction holes (collectors) near the channels 27, an overpressure zone of the smoke-air mixture occurs in the central part of the chambers, which contributes to the intensification of the fish processing process. product flow and turbulent movement of the smoke-air mixture in this zone. The flow of air mixture spreads in both directions from the central zone to the ends and meets in its path aerodynamic resistance in the form of cages with fish, while the pressure of the flow of the smoke / air mixture is gradually quenched, and the flow is sucked at the ends of chamber 1 through window 7 in hollow doors 3. Through the channels 6, the collectors 9, the pipes 11, 12, 13, 14, 15 and the mixing chamber 16, the smoke-air mixture is discharged by a centrifugal fan 19. Thus, in the center of each chamber 1, an overpressure is created and discharges along the ends.

The uniformity of flow distribution along the height of chamber 1 is adjusted by the shutters 8 on the windows 7, and the uniformity of the degree of suction on all four ends of the device is adjusted by the shutters 10 once during adjustment.

The cage with fish during processing in the device, moving along the length of chamber 1 from loading to unloading, is exposed to a flow of smoke and air in three directions:

longitudinal counter - from the door of loading to the central part of chamber 1;

transverse (bottom to top) - in the central part;

longitudinal passing - from the central part to the doors of unloading.

Such exposure to an air-smoke mixture with the presence of an overpressure zone allows to intensify the process of fish processing, to obtain uniformly treated fish in all cages and the entire volume of each cage.

6

Sanitary device handling is simplified. and carried out by supplying steam to the recirculation system. After that, the removable grids 28 are lifted and the squeezers 30 are removed to clean and remove the resin.

The technical and economic efficiency of the invention lies in the fact that the device allows the maximum use of internal combustion engines and energy consumption for processing the product, since the heating costs of the chamber structures are reduced, the agent’s contact with products both in its section and in length is improved, and ICE through the product is approximately halved; increases the intensity and improves the quality of product processing due to the presence of the pressure zone of the internal combustion engine and its impact on the product in three directions in one chamber; eliminates emissions of the internal combustion engine outside the chamber and, accordingly, the pollution of the industrial premises; allows you to conduct the process continuously without stopping during the loading and unloading of the product, which improves performance and reduces energy costs; during the reconstruction of the existing tunnel chambers, their productivity increased by 30% with a significant improvement in product quality and working conditions.

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Claims (1)

DEVICE FOR THERMAL PROCESSING OF FOOD PRODUCTS, containing a chamber, the end sides of which are hollow with openings for exhausting a flue mixture, a pressure chimney installed in the central part of the chamber along its height and a flue-gas supply and exhaust system, characterized in that, for the purpose of intensification process and improve the quality of finished products by uniform distribution of the smoke-air mixture throughout the chamber, as well as reducing energy consumption and simplifying the design, in the bottom of the chamber along its width, in months those locations of the pressure chimney have distribution channels for supplying the air-flue mixture to the chamber, and the pressure chimney has output manifolds installed in the respective distribution channels, and removable rails of different height are strengthened along the chamber axis in the upper part of the chambers, the height of which increases to the periphery of the chamber.