RU2755827C1 - Conveyor bakery electric contact oven - Google Patents

Abstract

FIELD: baking industry.

SUBSTANCE: invention relates to the baking industry, in particular to devices for baking crust-free bakery products. A conveyor baking electric contact oven is proposed, which contains a baking chamber, a belt with circular motion along the conveyor for moving the baking mold into the baking chamber and a control unit, while a cushion of dielectric material with a height of 10 mm with the possibility of bending is rigidly fixed on the belt made of a current-conducting rubber material, on which the baking mold is fixed, divided into two parts, with a conductive plate fixed on the inner wall, which has the possibility of contact with the electrode, fixed inside the baking chamber, the walls of which are made of Teflon, on which a humidity sensor, a temperature sensor, a fan, an infrared radiation source, an ultraviolet lamp connected via a bus line to the control unit are fixed.

EFFECT: invention provides an increase in the productivity of the oven, as well as a reduction in labor costs in the production of bakery products in the field conditions.

1 cl, 2 dwg

Description

The invention relates to the baking industry, in particular to a device for baking crustless bakery products.

A device for baking bread and producing rusks is known. (A device for baking bread and the production of rusks. Romanchikov S.A., Ermoshin N.A. baking chamber, stainless steel plate and power supply system. The power supply system allows both alternating and direct current to be supplied to the plates. The disadvantage of the known design is low productivity and high labor costs.

The technical objective of the invention is to increase the productivity of the oven, reduce labor costs in the production of bakery products in the field.

The technical task is performed due to the fact that the conveyor bakery electrocontact oven, characterized by the fact that it contains a baking chamber, a belt with a circular motion along the conveyor for moving the baking form into the baking chamber and a control unit, while on the belt, made of non-conductive rubber material, is rigidly fixed a pillow, made of dielectric material, 10 mm high, with the ability to bend, on which a baking form is fixedly attached, divided into two parts, with a conductive plate fixed on the inner wall, having the possibility of contact with an electrode, fixed inside the baking chamber, the walls of which are made of teflon, on which a humidity sensor, a temperature sensor, a fan, an infrared radiation source, an ultraviolet lamp are fixed, connected through a bus with a control unit.

The appearance of the conveyor electric contact oven is illustrated in FIG. 1, which shows: pos. 1 - tape; pos. 2 - conveyor; pos. 3 - electrode; pos. 4 - control unit; pos. 5 - leading disk; pos. 6 - grounding; pos. 7 - UV lamp; pos. 8 - electric wire; pos. 9 - source of infrared radiation; pos. 10 - temperature sensor; pos. 11 - fan; pos. 12 - humidity sensor; pos. 13 - perforation; pos. 14 - bar; pos. 15 - case; pos. 16 - bakery mold.

FIG. 2 shows the connection of a bakery form with an electric power supply, where pos. 17 - conductive plate; pos. 18 - baking chamber; pos. 19 - dielectric plate; pos. 20 - pillow.

The essence of the technical solution lies in the use of an electro-contact method of heating dough pieces placed in baking molds fixed on a conveyor belt.

The design of the conveyor electric contact oven provides for the inclusion in its composition of the case (15) (optionally, made of stainless steel), inside which the baking chamber (18) (optionally made of Teflon) is located (Fluoroplast: application, properties, production and price. [ Electronic resource] www.kp.ru) [2]. The roof of the baking chamber (15) has a perforation (13) (optionally, several round holes).

A dielectric plate (19) (optionally, food grade plastics, rectangular, 3 mm thick, divided into two parts) is rigidly fixed (by adhesive) on the outer side of the pillow (20) (optionally, made of a dielectric material, 10 mm high, with the possibility bend). On the outer side of the bottom of the baking mold (16) (optionally, rectangular, made of aluminum), a groove is made by laser cutting (not shown in the figure) along the length of the conductive plate (17) rigidly fixed to the inner wall. The dielectric plate (19) provides electrical safety and does not allow moisture to come into contact with the metal parts of the furnace. The pillow (20) is fixedly (bolted) fixed on the outside of the tape (1).

The conductive plate (17) through the electrode (3) (optionally, in the form of a metal brush) is connected to a source of alternating electric current of industrial frequency. The electrode (3) is rigidly fixed on the side walls and the rod (14) fixed in the center to the ceiling of the baking chamber (18) along its entire length.

Automation of the control process is achieved by including a control unit (4) in the furnace kit, which provides automatic adjustment of the supplied voltage (120 V, 220 V), at a current strength of up to 6 A to the conductive plate (17) (acting as an electrode) and maintaining the optimal mode transformation of dough-bread.

The control unit (4) through the bus has a feedback with a humidity sensor (12), a temperature sensor (10), as well as a fan (11), an ultraviolet lamp (7), a source of infrared radiation (9) (as an additional source of heat treatment of dough pieces) ...

The baking oven works as follows. The dough with a moisture content of W = 55-58% after kneading (unpaired method of dough making) is placed in a baking mold (16) placed on a belt (1) in front of the baking chamber (15). The circular movement of the belt (1) along the conveyor (2) allows the movement of the baking form (16) into the baking chamber (15), which ensures the contact of the electrode (3) with the conductive plate (17). The belt speed (1) is set on the control unit (4) and depends on the mass of the dough piece, its moisture content and the amount of salt. The inclusion of additional heat sources and a fan inside the baking chamber in the oven set ensures the creation of optimal (temperature t = 31-33 ° C, air humidity W = 79-84%) conditions for baking crustless bread. Perforation (13) along the axis of the housing cover (15) allows the vapors released from the dough pieces to escape. The baked bread is removed from the baking mold (16) independently, at the moment the belt (1) moves through the drive roller (5).

Experimental studies carried out in August 2020 at the production base of Proektintertekhnika LLC made it possible to obtain the following results: it was found that the electric contact heat supply to the dough preparation during its movement along the conveyor inside the baking chamber allows for the production of bread that meets the requirements of standards, while increasing the amount baking molds in a row increase the productivity of the oven, compared to the prototype;

the proposed technical solution allows simulating the design of a baking oven and adjusting its performance.

Thus, the conveyor bakery electrocontact oven has a novelty and significant differences from the prototype, makes it possible to increase the productivity of the oven, reduce labor costs in the production of bakery products in the field. The proposed device can be used in power structures, when baking bread and bakery products in hard-to-reach areas and extreme conditions.

Bibliography

1. A device for baking bread and producing rusks. Romanchikov S.A., Ermoshin N.A. Patent for utility model RU 189947 U1, 11.06.2019. Application No. 2019101066 dated 10.01.2019

2. Fluoroplastic: application, properties, production and price. [Electronic resource] www.kp.ru.

Claims (1)

Conveyor bakery electrocontact oven, characterized by the fact that it contains a baking chamber, a belt with a circular motion along the conveyor for moving a baking form into the baking chamber and a control unit, while a pillow made of a dielectric material 10 mm high with the ability to bend is rigidly fixed on the belt made of non-conductive rubber material , on which the baking form is fixedly attached, divided into two parts, with a conductive plate fixed on the inner wall, which has the possibility of contact with the electrode, fixed inside the baking chamber, the walls of which are made of Teflon, on which the humidity sensor, temperature sensor, fan are fixed , a source of infrared radiation, an ultraviolet lamp, connected through a bus with a control unit.

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