RU2523518C1 - Washing and roasting machine - Google Patents

Abstract

FIELD: machine building.

SUBSTANCE: washing and roasting machine comprises a washing chamber, a chamber to separate water from the raw material and a roasting chamber. A helical band with oval protrusions on its surface is attached to the inner side of the washing chamber. A vertical shaft with multirow brushes is set in the centre of the washing chamber. The outer surface of the washing chamber is fitted with nozzles for washing water supply, and its lower part - with branch pipes for the supply of waste superheated steam from the roasting chamber. The chamber to separate water from the raw material is installed under the washing chamber and is equipped with a screw which is connected to a compound screw by a constant velocity joint, the first and the last turns of the latter screw are solid, all the other turns are perforated. Segment cuts are provided in the perforated turns with the certain pitch. The compound screw is installed in the roasting chamber whose lower perforated part is supplied with superheated steam from a steam generator. A washing circuit and a superheated steam circuit are operated according to the recirculation principle.

EFFECT: use of the invention will allow for the improvement of the raw material washing and roasting quality.

2 dwg

Description

The invention relates to the oil industry, in particular to equipment for washing and frying the feedstock.

The closest in technical essence and the achieved effect is a combined installation for the production of cooked-dried cereals [US Pat. No. 2182805, IPC ⁷ A23L 1/10. Combined plant for the production of cooked-dried cereals. Ostrikov A.N., Shevtsov S.A., Glotova E.V., Kalashnikov G.V. No. 2000105729/13. Claim 03/07/2000, publ. May 27, 2002], including a housing, a cooking chamber containing step sections with a mesh bottom, located under the cooking chamber, a drying chamber, a finished product unloading chamber, humidifiers, a fan with a recirculation pipe and air heater.

A disadvantage of the known installation is the low efficiency of washing the raw materials, the low efficiency of drying and cooking of raw materials, high energy and water costs.

An object of the invention is to reduce energy consumption, reduce overall dimensions, intensify the washing and frying process of raw materials, select the most rational modes for processing products without compromising their quality.

The problem is achieved in that in a washing and frying apparatus containing a washing chamber, a chamber for separating water from raw materials and a frying chamber, it is new that a spiral-shaped tape is attached to the inside of the vertical cylindrical washing chamber, on the surface of which there are oval-shaped protrusions, a vertical shaft with multi-row brushes is installed in the center of the washing chamber, nozzles for supplying washing water are located on the outer surface of the washing chamber, and nozzles for supplying waste waste are located in its lower part superheated steam from the frying chamber, under the washing chamber there is a horizontal cylindrical chamber for separating water from raw materials, in which there is a screw connected by a constant velocity joint with a combined screw, the first and last turns of which are solid and the rest are perforated, and perforated coils through a certain step, segment cutouts are made, the combined screw is mounted in the frying chamber, in the lower perforated part of which superheated steam is supplied from the steam generator torus, washing circuit and superheated steam circuit operating on the principle of recirculation.

Figure 1 presents a three-dimensional image of the washing and frying apparatus; figure 2 - spiral tape with protrusions on it.

The washing and frying apparatus (Fig. 1) includes a vertical cylindrical chamber of the sink 2, in the upper part of which a loading funnel 1 is located. A spiral tape 23 is attached to the inside of the vertical cylindrical chamber of the sink 2, on the surface of which there are oval-shaped protrusions 24 designed for more intensive mixing of the raw material during its movement in the washing process (figure 2). In the center of the washing chamber 2, a vertical shaft with multi-row brushes 7 is installed, which ensure the movement of raw materials on the surface of the spiral tape 23. The shaft with multi-row brushes 7 is driven from the electric motor 4 using a bevel gear 3.

On the outer surface of the washing chamber 2 in its upper part are nozzles 6 designed to disperse the water supplied to the washing of raw materials. The nozzles 6 are combined by a common collector connected via a pipe 14 to the pump 25.

On the outer surface of the washing chamber 2 in its lower part there are pipes 8 for supplying the spent superheated steam from the confuser 15 of the frying chamber 28 through the steam line 16. The pipes 8 supply the spent superheated steam to the lower part of the washing chamber 2 with the aim of heating the circulating water supplied through the pipe 14 through nozzles 6.

Under the washing chamber 2, a horizontal cylindrical chamber for separating water from the raw material 29 is installed, in which there is a screw 9 connected via a constant velocity joint (CV joint) 11 with a combined screw 18. A constant velocity joint (CV joint) 11 provides uniform rotation of both screws 9 and 18. The first and last turn of the combined screw 18 is made continuous to prevent leakage of superheated steam, and the rest are perforated, and segmented cutouts 26 are made in the perforated turns after a certain step. the lower part of the horizontal cylindrical chamber for separating water from raw materials 29, which is perforated, a collector 12 is attached.

The perforated screw 18 is mounted in the roasting chamber 28, in the lower perforated part of which superheated steam is supplied from the steam generator 22 by means of a fan 20. The washing circuit and the superheated steam circuit operate according to the recirculation principle. The washing circuit includes: nozzles 6, pipe 14, pump 25, circulating water filter 13 and collector 12. The superheated steam circuit includes: pipes 8, steam pipe 16, confuser 15, fan 20, steam generator 22 and pipe 21. Steam generator 22 is connected to the filter 13, and the valve 10 installed on the pipe 21 is designed for a controlled water supply.

The screws 9 and 18 are driven by an electric motor 4, a belt drive 5 and pulleys 27. The frequency of rotation of the screws 9 and 18 can be adjusted using a thyristor frequency controller on the electric motor 4. The shaft of the combined screw 18 is fixed at one end to the SHRUS 11 basket and the other - in the rear wall of the roasting chamber 28.

Segment cutouts 26, made in the perforated turns of the combined screw 18, are designed for free passage of superheated steam through a layer of fried raw materials.

Under the screws 9 and 18, perforated grids with holes are installed, the diameter of which is much smaller than the processed raw materials. Under the screw 9 there is a collector 12, which collects the waste water after washing the feedstock. From the collection 12, the wastewater enters the filter 13, and then through the pipe 14 using the pump 25 is fed into the nozzle 6.

In the frying chamber 28, superheated steam is supplied from the steam generator 22 by means of a fan 20. In this case, water is supplied to the steam generator 22 from the filter 13 by opening the valve 10.

At the outlet of the fan 20, a diffuser 17 is installed to create a uniform fluidized bed of raw materials in the frying chamber 28.

Above the combined screw 18 in the chamber for separating water from the raw material 29, there is a perforated mesh 30, necessary so that the raw material is not carried away by the flow of exhaust steam. From the confuser 15, the spent superheated steam is supplied through the steam line 16 to the nozzles 8.

The finished product is unloaded from the washer-fryer through the pipe 19.

Washing and frying apparatus operates as follows (Fig.1, 2).

The initial oilseeds (sunflower seeds, peanuts, pine nuts, etc.) through the feed funnel 1 enters the vertical chamber of the sink 2 on a fixed spiral tape 23.

The motor 4 is turned on, which, with the help of a bevel gear 3, drives the shaft with multi-row brushes 7. At the same time, the pump 25 is turned on, which feeds recycled water to the nozzles 6 through the pipe 14. The nozzles 6 spray water above the layer of raw material located on the surface of the spiral tape 23 .

Moreover, from the nozzles 8 located on the outer surface of the washing chamber 2 in its lower part, the spent superheated steam is supplied from the confuser 15 of the frying chamber 28 through the steam line 16.

The movement of raw materials is due to the following factors.

Firstly, due to the force of gravity acting on the raw materials. Secondly, with the help of multi-row brushes 7, which advance the raw materials on the surface of the spiral tape 23. Thirdly, due to the flow of water that comes from the pipe 14 through the nozzles 6, and the steam stream coming from the nozzles 8.

Moving down, the raw materials are thoroughly washed. This is achieved due to the fact that on the spiral tape 23 there are protrusions of oval shape 24, which give additional turbulization to the movement of raw materials, as a result of which the particles of raw materials, intensively contacting each other, are subjected to intensive and efficient washing.

After washing the raw materials in the washing chamber 2, it enters the horizontal cylindrical chamber for separating water from the raw materials 29. All water flows through a perforated mesh into the confuser 12. Then it enters the filter 13 for water purification. Then the purified water through the pipeline 14 by means of a pump 25 enters the nozzles 6 and the cycle becomes continuously closed.

Further, after the water has separated from the raw material, it is transported by a conveyor screw 9 into the frying chamber 28. The auger is driven by an electric motor 4, a belt drive 5 and pulleys 27. The combined auger 18 is rotated using a hinge of equal angular speeds 11.

Having entered the frying chamber 28, the raw material is exposed to superheated steam, which is supplied from the steam generator 22 by means of a fan 20. Due to this, the raw material located above the diffuser 17 is given a “boiling state”. Due to the 18 segment cutouts 26 and holes in the perforated coils available in the combined screw, superheated steam evenly washes all the particles of the fried raw material, contributing to their uniform and efficient frying.

The temperature of superheated steam is 120 ... 150 ° C, depending on the type of initial oilseeds, which does not adversely affect the raw materials.

Superheated steam, leaving the roasting chamber 28, enters the confuser 15 and from it is sent to the pipe 16 and then through the nozzles 8 is fed to the lower part of the washing chamber 2.

The fried product is unloaded from the washer-fryer through the pipe 19 and then goes to the packaging.

Thus, the use of the invention will allow:

- select the most rational modes for processing raw materials without compromising its quality;

- intensify the process of washing and frying oilseeds;

- provide energy and resource savings due to recirculation flows.

Claims (1)

A washing and frying apparatus comprising a washing chamber, a chamber for separating water from raw materials and a frying chamber, characterized in that a spiral-shaped tape is attached to the inside of the vertical cylindrical washing chamber, on the surface of which there are oval-shaped protrusions, a vertical shaft with multi-row is installed in the center of the washing chamber brushes, on the outer surface of the washing chamber in its upper part there are nozzles for supplying washing water, and in its lower part there are nozzles for supplying spent superheated steam from the frying chamber, under a washing measure installed a horizontal cylindrical chamber for separating water from raw materials, in which there is a screw connected by a constant velocity joint with a combined screw, the first and last turns of which are solid and the others are perforated, and segmented cuts are made in perforated turns after a certain step , the combined screw is mounted in a frying chamber, in the lower perforated part of which superheated steam is supplied from the steam generator, the washing circuit and the superheated steam circuit work on the principle of recycling.

Images