RU2684039C1 - Platform dryer - Google Patents

Abstract

FIELD: agriculture; machine building.SUBSTANCE: device relates to agricultural machine building, in particular, to seeds and grain drying machines. Device comprises two drying channels, each of which comprises in-series connected generator drying agent, fan, gate, diffuser, wherein each channel is connected to an injection chamber, which through a gas-permeable wall is connected to a drying chamber, which is covered by a detachable grate; control inputs of channels through keys are connected to first and second outputs of control device, respectively, which includes clock generator, which output is connected to counting input of countering counter, output of which is connected to information input of multiplexer, control input of which is connected to output of pulses coding unit, and the output is connected to the summation counter reset input and the subtracting input of the reversible counter, the parallel data reception input of which is connected to the pulse repetition rate encoding unit output, and the negative overflow output is connected to the data parallel reception enable input, is the control device first output and is connected to the control device second output through the inverter.EFFECT: invention increases efficiency and accelerates the drying process.1 cl, 1 dwg

Description

The device relates to agricultural machinery, in particular to machines for drying seeds and grains.

A single-section dryer is known (Maltri V. et al. Drying plants for agricultural purposes: Abridged lane with it. [Text] / V. Maltri, E. Petke, B. Schneider; Lane V.M. Komissarov, Yu.L. Fraeger; Edited by V.G. Evdokimov. - M.: Mechanical Engineering; 1979. - 525 p., Ill. - p. 270), working on heated air to dry elite seeds in bags.

Multi-sectional platforms reach an area of 36 and 80 m ² . To load some of them, the car drives onto the platform.

A common drawback of these dryers is their time consuming.

Closest to the invention in technical essence is a platform dryer - SP - 12A (Machines and laboratory equipment for breeding work in crop production: Ref., Manual [Text] / Under the general editorship of VM Drinchi - Voronezh: NPO MODEK, 2010 - 432 p., P. 200). The SP-12A dryer contains a series-connected electric air heater, a fan, a diffuser, an injection chamber on which a drying chamber is installed, a breathable wall between the chambers, and a removable grill covers the drying chamber.

The disadvantage of this dryer is the high cost of time (20 hours or more).

The purpose of the invention is to increase efficiency and speed up the drying process.

The goal is achieved in that the device contains two drying channels, each of which contains a drying agent generator, a fan, a gate, a diffuser connected in series with each channel being connected through a corresponding open wall to a discharge chamber, which is connected through a gas-permeable wall to a drying chamber, which covers the removable grill, the control inputs of the channels through the keys are connected respectively to the first and second outputs of the control device, which contains a clock generator, the output of which is connected is connected to the counting input of the summing counter, the output of which is connected to the information input of the multiplexer, the control input of which is connected to the output of the pulse duration coding unit, and the output with the reset input of the summing counter and the subtracting input of the reversible counter, the input of which is receiving data in parallel, is connected to the output of the coding block pulse repetition rate, and the negative overflow output is connected to the input enable parallel data reception, is the first output of the control device and through an inverter connected to the second output of the control device.

New significant features of the invention.

1. The introduction of a second generator of drying agents, a second fan, a second diffuser, two oppositely arranged gates, provides an alternate supply of two drying agents from different sides.

2. The introduction of the control device provides the ability to change the ratio of drying time by different agents. This makes it possible to choose the optimal drying option in terms of time and energy.

Thanks to the new essential features, the proposed device provides continuous and cyclic drying. Research (Gracheva N.N. Bioenergy potential of grain drying / N.N. Gracheva // Electrotechnologies and electrical equipment in agricultural production. Collection of scientific papers. - Zernograd: FSEI HPE AChGAA, 2004. - Issue 4. Volume 2 - p. 117-121) show that the activity of grains during cyclic drying reduces the drying time by 30%, which is equivalent to an increase in the speed of the drying agent by 1.3 times and a decrease in energy intensity by 21%.

There are patents:

1. RU No. 2519809 class. A01F 25/00. Published on June 20, 2014 Bull. No. 17)

2. RU No. 2539860 class. B02B 5/00; F26B 17/12. Published 01/27/2015), confirming the advantages of cyclic drying.

There are multiple works showing the benefits of using ozonized and ionized air for drying. One of the reasons hindering their implementation is that the ratio of drying times by different agents has not been established.

The proposed device allows you to accurately determine this ratio.

In FIG. 1 shows a block diagram of a device.

The device shown in FIG. 1, contains generators 1.2 of drying agents - the first and second, fans 3, 4 - the first and second, gates 5, 6 - the first and second, diffusers 7, 8 - the first and second, forming two drying channels, the first of which contains series-connected first: generator 1 drying agent, fan 3, gate 5, diffuser 7, and the second channel contains series-connected second: generator 2 drying agent, fan 4, gate 6, diffuser 8; each channel is connected to a corresponding open wall of the discharge chamber 9, which is connected through a gas-permeable wall to the drying chamber 10, which is covered by a removable grill 11; the control inputs of blocks 1, 3, 5 through a key 12 are connected to the first output of the control device 14, and the control inputs of blocks 2, 4, 6 through a key 13 are connected to the second output of the control device 14, which contains a clock generator 15, the output of which is connected to the counting the input of the summing counter 16, the output of which is connected to the information input of the multiplexer 17, the control input of which is connected to the output of the pulse duration coding unit 18, and the output with the reset input of the summing counter 16 and the subtracting input of the reverse counter and 20, whose parallel data input is connected to the output of the pulse repetition frequency coding unit 19, and the negative overflow output is connected to the parallel data reception enable input, is the first output of the control device 14 and connected through the inverter 21 to the second output of the control device 14.

The device operates as follows.

The drying chamber 10 is filled with the removable grating 11 removed. After the drying chamber 10 is filled with drying material, the drying agent generators 1, 2 and the control device 14 are turned on. The clock generator 15 sets the minimum pulse duration and frequency of their repetition. A multiplexer 17 is included in the feedback of the summing counter 16, which multiplies the pulse duration by the generator 15 by a multiple of times. The pulse width increasing rate is set by the pulse duration coding unit 18. The multiplicity of the increase in the intervals between pulses sets the block 19 encoding the pulse repetition rate. The specified code is entered into block 19 and when the signal Re permits group reception of data, which appears when the overflow of the reverse counter 20 is negative, is stored in the reverse counter 20. The pulses received at the subtractive input of the counter reduce the recorded code to a negative value and the code is received again from this pulse unit 19. The pulses from the reversible counter 20 are supplied to the first output of the device and through the inverter 21 to the second output of the control device, to which the corresponding keys 12 and 13 are connected, which are on chayut appropriate drying agent generator, fan gate for passing drying agent. Drying agent generators operate alternately. The gates are supplied to reduce the passage of the drying agent through the idle channel. The removable grill provides higher moisture saturation for the spent drying agent. It is removed when loading the camera.

The list of items in the drawing FIG. 1 to application

Platform dryer

1, 2 - Generators of drying agents;

3, 4 - Fans;

5, 6 - gates;

7, 8 - Diffusers;

9 - Pressure chamber;

10 - Drying chamber;

11 - Removable grill;

12 -

3 - Keys;

14 - control device;

15 - Clock generator;

16 - Summing counter;

17 - Multiplexer;

18 - Block encoding the duration of the pulses;

19 - Block coding of the pulse repetition rate;

20 - Reversible counter;

21 - Inverter.

Claims (1)

A platform dryer containing a drying agent transfer channel from the generator through a fan and a diffuser to a discharge chamber connected in series through a gas-permeable wall to a drying chamber, which is covered by a removable grate, characterized in that the second drying agent transmission channel of the same type is introduced and introduced in both channels gates between the fan and the diffuser; entered control device and keys; the channel control inputs via keys are connected respectively to the first and second outputs of the control device, which contains a clock generator, the output of which is connected to a counting input of a totalizing counter, the output of which is connected to the information input of the multiplexer, the control input of which is connected to the output of the pulse duration coding unit, and the output - with the reset input of the totalizing counter and the subtracting input of the reversible counter, the input of which parallel data reception is connected to the output of the coding unit pilots at pulse repetition, and an underflow outlet is connected to the parallel enable input for receiving data, a first output of the control device and via an inverter connected to the second output of the control device.

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