SU1335230A1 - Apparatus for determining water-resistance of granulated mixed feed for fish - Google Patents

Abstract

FIELD OF THE INVENTION The invention relates to fish farming, namely, to the technique of quality control of animal feed for fish. The purpose of the invention is to reduce the time for obtaining data on water resistance. In (L so oo JV GS 00 /////////////////////////////////

Description

The device for determining the water resistance of granulated animal feeds for fish is a device for placing the granules in an aquatic environment in the form of partially joined spring-loaded dielectric branches 3 and 4, which are fitted with coaxially arranged waterproof nests 6 for clamping the granules of the compound feed. Moreover, electrical contacts in the sockets are fixed in series electrically connected to a current source 11 and a recording electrical measuring device 12, such as a microammeter, and electrical contacts 14 and 15 are connected parallel to the current source, fixed symmetrically to the nests 6 of the clamps 7 at opposite ends of the connecting dielectric branches 3 and 4 and electrically connected directly to the detector 16,

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The invention relates to fish farming, in particular, to devices for determining the water resistance of granulated feed for fish, and can be used to obtain comparative express information on the water resistance of feed obtained by various processing methods in order to expeditiously optimize the selection of recipes and production methods for obtaining feed with the required fish-breeding characteristics.

The purpose of the invention is to reduce the time to determine the water resistance by creating an external mechanical compressive force on the tested granules and thereby eliminating the long phase of purely gravitational separation of the particles of disintegration of the granules under the influence of an aqueous medium.

The drawing shows a structural diagram of a device for determining the water resistance of granulated feed for fish.

A device for determining the water resistance of granulated feed for fish contains a capacity of 1 for

for example, sound or light. When the tested granule is clamped in the waterproof nests 6 and immersed them and the water tank 1 begins the process of destructive influence of the aqueous medium on the granule. As a result of the diffusion penetration of moisture into the micro- and macrocapillaries of the granule tested for water resistance, the initial electrical resistance of the granule structure decreases, and consequently, the electric current in the circuit increases: granule 7, current source 11 and recording device 12 or recorder 13 continuously fixing the kinetics of the diffusion process penetration of moisture into the granule 7 tested for water resistance, i.e. the possibility of both visual and automatic registration of the very initial stage of the destructive effect of the aquatic environment on the granule is provided. 1 il.

water, equipped with a device for the placement of granules, made in the form of dielectric bridges 3 and 4 immersed in an aquatic environment and fixed with a spring 5, which are immersed in an aquatic environment, are attached to the collet 1, and branches 3 and 4 partially immersed in an aquatic environment for clamping the water-resistant granule 7 feed. The waterproofness of the nests 6 is ensured by rubber cuffs (tubes 8) which tightly press the ends of the pellets 7 of the compound feed. Electrical sockets 9 and 10 are fixed in slots 6, which adjoin granule 7 and are electrically connected in series with current source 11 and register with an electrical measuring device, such as microammeter 12 for visual or recorder 13 for automatic recording of a monitored indicator. .Symmetrically to the sockets 6 at the opposite joining dielectric jaws 3 and 4, electrical contacts 14 and 15 are fixed at their upper ends, one of which

connected to a current source, and the other directly to the detector 16, for which an electric bell or incandescent lamp can be used, the latter being connected to the current source 11 and the registering device 12, the electrical contact 14 is provided with a lock 17, providing the possibility adjusting the threshold (electrical closure) of contacts 14 and 15 in the process of closing the dielectric branches 3. and 4 as a result of the destruction of the granule 7 being tested for water resistance.

The device works as follows.

When the tested granule 7 is clamped in the waterproof nests 6 of the joining spring-loaded dielectric branches 3 and 4 and then immersed in the tank 1 filled with water, the process of destroying the aqueous medium on the granule 7 begins. The very first stage of the destructive effect of the aqueous medium on granule 7 consists in diffusion penetration of moisture into micro- and macrocapillaries of the face tested for resistance to water; granule tested for resistance to water

7, the process of determining water resistance is intensified (accelerated), since eliminates the need for a long-lasting time lag to separate the particles of destruction (decay) of the granules under the action of gravitational forces.

zeros, which is accompanied by a decrease in the initial electrical resistance of the structure of the granules 7.

Since the ends of the granule 7 are in contact with electrical contacts 9 and 10 fixed in waterproof sockets 6 and electrically connected in series with current source 11 and recording electrical measuring device 12, the electrical resistance of the granule 7 decreases as a result of diffusion penetration of moisture into its structure causes an increase in the electric current in the circuit: the granule 7, the current source 11, the registering device 12. In this case, the change in the magnitude of the electric current flowing through the granule 7 is functionally It reflects the intensity of the process of diffusion of moisture into granule 7 tested for water resistance. This allows recording the change in the magnitude of electric current by microammeter 12 or recorder 13 to continuously record the kinetics of the process of diffusion penetration of moisture into granule 7 tested for resistance to water, i.e. the opportunity is provided as a visual.

and automatic registration of the most initial stage of the destructive effect of the aquatic environment on the compound tested for water resistance. It is characteristic that the water resistance of the nests of the granule 7 provided by the rubber cuffs 8 only selectively records the informative parameter — the change in the electrical resistance of the granule 7 caused by a controlled factor — diffusion penetration of moisture into the product being tested for waterproofing the granule ensures leakage electric current only through the analyzed product and eliminates the possibility of direct closure (bypass) electrical contacts 9 and 10 water environment).

The compressive force of the spring 5, fixed on the junction branches 3 and 4, is tested on the granule 7 tested for resistance to water, in the slots of which the analyzed granule 7 is fixed. As a result of this external mechanical force on the granule tested for resistance to water

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7, the process of determining water resistance is intensified (accelerated), since eliminates the need for a long-lasting time lag to separate the particles of destruction (decay) of the granules under the action of gravitational forces.

When granule 7 is destroyed by the aqueous medium, mechanical closing of branches 3 and 4 of electrical contacts 14 and 15 fixed on the upper ends occurs and, as a result, the electrical circuit of the power supply from current source 11 to the alarm 16, h Ro is accompanied by an audible or CBet signal. This allows, by eliminating the complexity of visual observation, in a timely manner to obtain accurate signaling information about the mechanical destruction of the compound tested for water resistance.

This device, as a result of its implementation, reduces the time required to obtain data on water resistance by eliminating the need for long-term visual observation of the process of mechanical disintegration of the granules while obtaining an informative indicator

only after particles of disintegration of adhesion and autohesion adhesion forces are overcome and their subsequent sedimentation under the action of gravitational forces is no less than 3 times, and the information content of water resistance data is expanded by creating possibilities for detecting the initial stages of diffusive penetration of moisture into the analyzed product and issuing alarm information about the beginning of the process of mechanical disintegration of the granules as a result of the damaging effects of the aquatic environment.

Fore, Mula Invention

A device for determining the water resistance of granulated feed for fish, containing a container for

Editor N. Rogulich Order 3992/5

Compiled by G. Bogachev

Tehred c. Kadar Proofreader M. Demchik

Circulation 627 Subscription

VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

Production and printing company, Uzhgorod, st. Project, 4

water, equipped with a device for placing granules, and a registering device, characterized in that, in order to reduce the time to determine the water resistance, it is equipped with a consistently installed current source and a signaling device, and the device for placing the granules is made in the form of spring-loaded dielectric branches, at both ends of which there are electrical contacts, with the upper electrical contact of one branch connected to the current source, its lower contact with the recording device, the upper contact of the other the branch is connected to the detector, and the bottom is connected to the current source, and in the bottom of each branch there are jacks for clamping the granules.

Claims (1)

Claim A device for determining the water resistance of granular compound feeds for fish, containing a container for ² 5230 ⁶ water, equipped with a device for placement of granules, and a recording device, characterized in that, in order to reduce time 5 of the determination of water resistance, it is equipped with a sequentially installed current source and signaling device, and the device for placing the granules is made in the form of spring-loaded dielectric branches, at both ends of which there are electrical contacts, while the upper electrical contact of one branch is connected 5 with a current source, its lower contact is with a recording device, the upper contact of the other branch is connected to the signaling device, and the lower one is connected to the current source, and the nests ⁰ for clamping the granules are made in the lower part of each branch.