SU1033118A1 - Apparatus for heat treatment of food products - Google Patents

Abstract

A FOOD TREATMENT DEVICE FOR FOOD PRODUCTS, consisting of a chamber divided by a longitudinal partition into two working areas, an endless chain conveyor with containers for containers, devices for supplying steam and hot air, directing for removal of containers, characterized in that the purpose of expanding the technological capabilities of the device, it is equipped with an additional conveyor, the web of which is made of transversely arranged rods with a pitch equal to half the carrier spacing, with the additional end A fan is installed under the lower branch of the main conveyor and on its drive shaft there is a drum with slots for insertion of rods and annular grooves, one end of the guide for discharging the container is made in the form of combs for interacting with the annular grooves, and the upper working area has a tambour for dividing it into subzones.

Description

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The invention relates to devices for the heat treatment of food products in cans and can be used in the food industry, in particular for blanching and smoking fish laid in inventory forms.

A device for the heat treatment of food products in cans, including an endless chain conveyor with plates and combs for placing cans between them, is known. The combs consist of L-shaped plates, the shelves of which allow to hold the cans on the lower branch of the conveyor 1.

A disadvantage of the known device lies in its low productivity due to the fact that the plates and the dies are designed in such a way that they do not allow the banks to fully load the purpose of the conveyor. In addition, at the site of unloading, the cans of fish in carriers unfold, moving from a vertical position to a somewhat inclined towards the horizontal. For processing fish in inventory forms, which is necessary when releasing canned food from a smoked product, the known device may not be applicable, since in the turn section the fish will fall out of inventory forms. This device does not have a smoky food zone.

It is also known a device for heat treatment of food products from a chamber divided by a longitudinal partition into two working zones, an endless chain conveyor with carriers for containers, devices for supplying steam and hot air, guides for discharging containers 2.

However, this device also cannot be used to process the product in inventory forms that do not have a bottom and, moreover, it does not provide a smoke treatment area for the product.

The aim of the invention is to expand the technological capabilities of the device,

The goal is achieved by the fact that the device, consisting of a chamber divided by a longitudinal partition into two working areas, an endless chain conveyor with carriers for containers, devices for supplying steam and hot air, guides for discharging containers, is equipped with an additional conveyor; which is made of transversely arranged rods with a step equal to half the pitch of the carrier, an additional conveyor installed under the bottom net of the main conveyor and mounted on its drive shaft slave with slots for call rods and annular grooves, one end of the guide for removing the containers is formed as a comb for engagement with annular recesses, the upper working area has to separate its tambour into subzones.

The construction of the conveyor, consisting of bars, provides free access of smoke to the product. And the condition that the depth of the longitudinal grooves on the drum must be greater than the diameter of the bars is necessary for a smooth transition of the container from the bar conveyor to the comb guide.

The lower working area of the chamber is connected to the chimney, and the upper working area is divided by a reel from a row of transverse partitions into two: blanching and drying, respectively. The presence of the vestibule between the blanching and drying zones simplifies the heat exchange condition.

FIG. 1 shows the device. Lengthwise cut; in fig. 2 — part of the maintenance conveyor from the side of the discharge; in fig. 3 — combed tray guide, side view; in fig. 4 - the same plan view; in fig. 5 - comb guide with drum, plan view.

The heat treatment device consists of a loading conveyor 1, a housing 2, a pusher 3, an inclined tray 4, a discharge conveyor 5, a chain conveyor 6, shafts with asterisks 7 and 8, a chamber 9 divided by partitions 10 into upper and lower working areas. The upper zone is divided by vestibule 11, consisting of upper and lower transverse partitions 12 installed in pairs. On one side of vestibule 11, there is a blanching zone 13, on the other, a drying zone 14. Tambour 11 reduces the mutual influence of steam on the air and vice versa, eliminating temperature jumps in these zones. Air ducts 15 are located inside the device and are used to supply and suck hot air. Bubblers 16, installed in the blanching zone 13, serve to supply steam.

On the conveyor 6, carriers 17 are mounted for transporting cans or inventory forms 18. A product container is placed between each pair of carriers 17. Each cross-sectional carrier is L-shaped and the smaller shelf 19 is attached to the side of the conveyor chain 6. The carriers are corrugated with end-to-end grooves that ensures the passage of coolant to the product. In the zone of rotation of the conveyor 6 around the sprocket 7 there is a comb-shaped guide 20 preventing the container with the product from falling out of the carrier. Under the lower branch of the chain conveyor 6, a conveyor is mounted, accompanied by 21, made of a series of bars 22 fixed on chains 23 with a step two times smaller than the step between carriers. This provides guaranteed support for tare rods on the lower branch of the conveyor. On the drive shaft of the conveyor 21, a drum 24 is installed, which is provided with forming pieces 25 for rods 22. The depth of the grooves 25 must be greater than the diameter of the rods, since the container with the product must rise with the ribs 26 of the drum 24 above the rods. In addition to the longitudinal grooves 25, the drum is provided with annular grooves 27 for the entry of the comb guides 28, which serve to remove the containers from the bar conveyor. The tensioning shaft 29 of the conveyor belt 21 is installed under the guide 20. For collecting the broth in all zones, there are pallets 30, mounted under the upper branch of the conveyor 6 and under the lower branch of the conveyor 21. The comb guide 28 (Fig. 5) is a plate, one side of which is made in the form of a comb, the width of the teeth of which is commensurate with the width of the annular grooves 27 on the drum 24. The pitch between the teeth is also equal to the pitch between the annular grooves. In order to ensure smooth transfer of the container with the product from the conveyor belt 21 to the comb guide 28, the depth of the longitudinal grooves 25 of the drum 24 must be larger than the diameter of the bars 22. The comb teeth are above the bars and the fish forms move along the guide to the tray 4. Smoke pipes 31 and the tracking conveyor 21 is located in the smoky area 32. The device operates as follows. The fish (or other product) in the cans or inventory forms 18 collides with the carriers 17. Being located on the asterisk 8, the carriers are in the open position, as the conveyor moves further, the carriers descend from the asterisk, closing the container between the two carriers space. The jar or inventory with the fish is in a position on its side. With the conveyor 6, the cans successively pass through blanching, drying and smoke processing zones. On the lower branch of the can, the bar conveyor 21 is supported, the movement of which is synchronized with the main conveyor 6. The passage through the working area, the product in the cans is exposed to smoke. The process of unloading inventory forms from the device is carried out as follows. Due to the fact that the grooves 25 on the drum have a depth greater than the diameter of the products 22, the latter are installed in the grooves, and the form with the product is lifted by the ribs 26 and transferred to the comb guides 28, from which it goes along the inclined tray 4 to the discharge conveyor 5. The introduction of one device allows to obtain an economic effect in the amount of 22.5 thousand rubles. in year.

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Claims (1)

DEVICE FOR THERMAL PROCESSING OF FOOD PRODUCTS, consisting of a chamber divided by a longitudinal partition into two working zones, an endless chain conveyor with carriers for containers, devices for supplying steam and hot air, guides for the removal of containers, characterized in that, in order to expand technological capabilities device, it is equipped with an additional conveyor, the canvas of which is made of transversely spaced rods with a step equal to half the step of the location of the media, with the additional conveyor getting under the lower branch of the main conveyor and its drive shaft mounted drum with slots for entry of rods and annular grooves, one end of the guide for removing the container is formed as a comb for interaction with annular recesses, and the upper working area has to separate its tambour zone.