阅读说明：本技术 一种粮食的螺旋循环烘干装置 (Spiral circulation drying device of grain ) 是由 于清 于 2020-06-02 设计创作，主要内容包括：本发明公开了一种粮食的螺旋循环烘干装置,包括基座,所述基座的左侧顶部竖直安装有支撑架,所述支撑架上固定安装有螺旋管,所述螺旋管缠绕于支撑架的外侧；所述基座的右侧顶部竖直固定安装有提升管,所述提升管的内腔底部固定安装有电机,所述电机的顶部固定连接有螺杆,所述螺杆位于提升管的内腔中；所述提升管的顶部与螺旋管的顶端之间倾斜安装有导管,所述提升管的底部与螺旋管的尾端之间固定连接有回流管,所述螺旋管的底部左侧倾斜安装有出料管；所述提升管的底部右侧固定安装有热风机,所述导管的顶部固定安装有进料斗,本发明结构简单,方便实用,提高了烘干效率,对粮食还有保护的功能。(The invention discloses a spiral circulation drying device for grains, which comprises a base, wherein a support frame is vertically arranged at the top of the left side of the base, a spiral pipe is fixedly arranged on the support frame, and the spiral pipe is wound on the outer side of the support frame; a lifting pipe is vertically and fixedly installed at the top of the right side of the base, a motor is fixedly installed at the bottom of an inner cavity of the lifting pipe, a screw rod is fixedly connected to the top of the motor, and the screw rod is located in the inner cavity of the lifting pipe; a guide pipe is obliquely arranged between the top of the lifting pipe and the top end of the spiral pipe, a return pipe is fixedly connected between the bottom of the lifting pipe and the tail end of the spiral pipe, and a discharge pipe is obliquely arranged on the left side of the bottom of the spiral pipe; the air heater is fixedly arranged on the right side of the bottom of the lifting pipe, and the feeding hopper is fixedly arranged on the top of the guide pipe.)

1. The utility model provides a spiral circulation drying device of grain, includes base (1), its characterized in that: a supporting frame (2) is vertically arranged at the top of the left side of the base (1), a spiral pipe (3) is fixedly arranged on the supporting frame (2), and the spiral pipe (3) is wound on the outer side of the supporting frame (2);

a lifting pipe (6) is vertically and fixedly installed at the top of the right side of the base (1), a motor (7) is fixedly installed at the bottom of an inner cavity of the lifting pipe (6), a screw rod (8) is fixedly connected to the top of the motor (7), and the screw rod (8) is located in the inner cavity of the lifting pipe (6);

a guide pipe (10) is obliquely arranged between the top of the lifting pipe (6) and the top end of the spiral pipe (3), a return pipe (11) is fixedly connected between the bottom of the lifting pipe (6) and the tail end of the spiral pipe (3), and a discharge pipe (4) is obliquely arranged on the left side of the bottom of the spiral pipe (3);

the bottom right side fixed mounting of riser (6) has air heater (9), the top fixed mounting of pipe (10) has feeder hopper (12).

2. The spiral circulation drying device of grain of claim 1, characterized in that: the discharge pipe (4) is provided with a control valve (5).

3. The spiral circulation drying device of grain of claim 1, characterized in that: and a grain sliding frame (13) is fixedly arranged at the bottom of the inner cavity of the spiral pipe (3).

4. The spiral circulation drying device of grain of claim 1, characterized in that: and a dust screen (14) is arranged at the air inlet of the air heater (9).

The technical field is as follows:

the invention relates to the field of grain processing, in particular to a spiral circulation drying device for grains.

Background art:

before grains such as rice, wheat and the like are stored, the grains need to be dried, the grains are usually exposed to the sun, the drying method is low in efficiency and easy to be affected by weather and geographical environment, many farmers have potential safety hazards when exposing the grains to the sides of roads, and a grain dryer is usually used for replacing the traditional grain drying method.

The grain drier is mainly used for drying paddy and wheat, and can be used for drying crops such as rapeseeds and the like after being slightly improved. The grain drier consists of coal stove, motor, axial flow fan, stacking rack and other parts. When the grain drier is in operation, the motor drives the impeller of the axial flow fan to rotate at high speed, so that hot air generated by combustion of the coal stove is sucked into the fan through the upper part of the air partition plate, and mixed air is formed by the hot air and cold air sucked into the fan from the lower part of the air partition plate, and the mixed air enters the stacking rack through the air-shielding pipe and then is diffused. The temperature of the mixed gas can be adjusted by the difference of the opening angles of the temperature adjusting cover and the temperature adjusting plate. In order to dry the rice evenly, a spade is often used to turn over the rice.

The direct hot air drying of current grain drier to grain, the temperature in the stoving storehouse is higher, and in grain directly got into the stoving storehouse, the quality of grain can suffer destruction, can not have gradual stoving effect to grain.

The invention content is as follows:

the invention aims to provide a spiral circulation drying device for grains, which improves the drying efficiency and has the function of protecting the grains.

The technical problem to be solved by the invention is realized by adopting the following technical scheme: a spiral circulation drying device for grains comprises a base, wherein a support frame is vertically arranged at the top of the left side of the base, a spiral pipe is fixedly arranged on the support frame, and the spiral pipe is wound on the outer side of the support frame;

a lifting pipe is vertically and fixedly installed at the top of the right side of the base, a motor is fixedly installed at the bottom of an inner cavity of the lifting pipe, a screw rod is fixedly connected to the top of the motor, and the screw rod is located in the inner cavity of the lifting pipe;

a guide pipe is obliquely arranged between the top of the lifting pipe and the top end of the spiral pipe, a return pipe is fixedly connected between the bottom of the lifting pipe and the tail end of the spiral pipe, and a discharge pipe is obliquely arranged on the left side of the bottom of the spiral pipe;

the bottom right side fixed mounting of riser has the air heater, the top fixed mounting of pipe has the feeder hopper.

Preferably, a control valve is arranged on the discharge pipe.

Preferably, the bottom of the inner cavity of the spiral pipe is fixedly provided with a grain sliding frame.

Preferably, a dust screen is installed at the air inlet of the air heater.

The invention has the beneficial effects that: the spiral pipe type grain drying machine is simple in structure, convenient and practical, grain is guided in from the feeding hopper, the grain is downward along the spiral pipe under the action of gravity and enters the lifting pipe through the return pipe, the screw rod is driven by the motor to rotate, the grain is lifted upwards and slides into the spiral pipe again when reaching the position of the guide pipe to form circulation, hot air is blown into the bottom end of the spiral pipe by the hot air blower at the moment, the hot air is conveyed from the tail end to the head end of the spiral pipe, the heat is gradually consumed in the conveying process of the spiral pipe, so that the temperature in the spiral pipe is gradually reduced from bottom to top, the grain in the charging bucket is conveyed from the head end to the tail end of the spiral pipe, the heat for drying the grain is gradually increased from top to bottom, the process that the grain is gradually adapted in the falling process can be provided, the temperature.

Description of the drawings:

in order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts;

FIG. 1 is a schematic structural view of example 1 of the present invention;

FIG. 2 is a schematic structural diagram of example 2 of the present invention;

wherein: 1. a base; 2. a support frame; 3. a spiral tube; 4. a discharge pipe; 5. a control valve; 6. a riser tube; 7. a motor; 8. a screw; 9. a hot air blower; 10. a conduit; 11. a return pipe; 12. a feed hopper; 13. a grain sliding frame; 14. a dust screen.

The specific implementation mode is as follows:

in order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further explained below by combining the specific drawings.