CN212189934U

CN212189934U - Self-cooling rice classifying screen

Info

Publication number: CN212189934U
Application number: CN202020443685.8U
Authority: CN
Inventors: 邓爱军
Original assignee: Guangxi Wanjiaxiang Agricultural Development Co ltd
Current assignee: Guangxi Wanjiaxiang Agricultural Development Co ltd
Priority date: 2020-03-31
Filing date: 2020-03-31
Publication date: 2020-12-22
Anticipated expiration: 2030-03-31

Abstract

The utility model discloses a self-cooling rice grading sieve, including grading sieve and cooling device, the grading sieve be connected with cooling device's top through the discharging pipe, cooling device include casing and cooling chamber, be provided with the air supply chamber between the lateral wall of cooling chamber and the lateral wall of casing, the upper portion and the blast pipe intercommunication of casing, the interval sets up air supply channel on the lateral wall of cooling chamber; the cooling chamber is internally provided with a material guide plate which is arranged in a wave shape in the vertical direction, the upper end of the material guide plate is connected with the lower end of the discharging pipe, the lower end of the material guide plate is connected with a supporting rod which is positioned at the bottom of the cooling chamber, and through holes which can enable rice to pass through are uniformly distributed on the inclined edge of the material guide plate which is arranged in the wave shape.

Description

Self-cooling rice classifying screen

Technical Field

The utility model relates to a rice processing equipment technical field, concretely relates to white rice classifying screen of self-cooling.

Background

Rice gets into the rice mill behind the preliminary edulcoration of destoner and peels, will peel and carry out the rice after the chaff separation directly to carry in the burnishing machine and polish in the current rice course of working, need control certain temperature and humidity during the polishing, and rice temperature is higher when the rice mill carries out the husk rice shelling, if the temperature that hardly reaches the polishing demand is polished to the direct entering burnishing machine of white rice after the husk rice shelling, cause polishing effect relatively poor, problem such as broken rice rate height, it is lower to lead to the product percent of pass. Set up cooling device at the discharge gate of classifying screen among the prior art and cool off the rice, then just get into the burnishing machine, but current cooling device rice whereabouts process is more concentrated, and the rice whereabouts distance is short in cooling device, leads to cooling efficiency not high, and the power consumption is big.

Disclosure of Invention

The utility model aims at solving the defects of the prior art and providing a self-cooling rice grading sieve.

The technical scheme of the utility model as follows:

a self-cooling rice grading sieve comprises a grading sieve and a cooling device, wherein the grading sieve is connected with the top of the cooling device through a discharge pipe, the cooling device comprises a shell and a cooling chamber, an air supply cavity is arranged between the side wall of the cooling chamber and the side wall of the shell, the upper part of the shell is communicated with an air supply pipe, and air supply channels are arranged on the side wall of the cooling chamber at intervals; the cooling chamber is internally provided with a material guide plate which is arranged in a wave shape in the vertical direction, the upper end of the material guide plate is connected with the lower end of the discharging pipe, the lower end of the material guide plate is connected with a supporting rod which is positioned at the bottom of the cooling chamber, and through holes which can enable rice to pass through are uniformly distributed on the inclined edge of the material guide plate which is arranged in the wave shape.

The lower end of the discharge pipe is provided with a horn-shaped pipe section, a horn-shaped guide block is arranged in the horn-shaped pipe section, and a cavity enabling rice to flow downwards is formed between the outer wall of the guide block and the inner wall of the horn-shaped pipe section.

Two guide plates are symmetrically arranged, a cavity is formed between the position corresponding to the guide plates in the horn pipe section and the guide block, and the inner walls of the horn pipe sections and the outer wall of the guide block at other positions are mutually and tightly connected without gaps.

The air supply channel on the side wall of the cooling chamber comprises an inclined section and a horizontal section, the inclined section is inclined downwards from the outer wall of the cooling chamber, the horizontal section is arranged at the lower end of the inclined section, and the outlet of the horizontal section is arranged on the inner wall of the cooling chamber.

The beneficial effects of the utility model reside in that:

1. the rice is firstly dispersed through the trumpet-shaped pipe section and then enters the material guide plate which is arranged in a wave shape along the vertical direction, and the material guide plate is provided with through holes, so that the rice is fully dispersed in the falling process, and the air cooling effect is enhanced; furthermore, the guide plate is arranged in a wave shape along the vertical direction, the rice falls on the guide plate by one layer, the long rice falling distance is prolonged in a limited space, and the falling speed of the rice is reduced, so that the rice is fully cooled in the cooling chamber, the energy consumption is low, and the cooling effect is good.

Drawings

FIG. 1 is a schematic structural view of a rice grading sieve of the present invention;

FIG. 2 is a schematic structural view of the cooling device of the present invention;

fig. 3 is a schematic structural view of the material guiding plate of the present invention;

FIG. 4 is a schematic structural view of the outer wall of the cooling chamber;

FIG. 5 is a schematic view of the arrangement of the air supply channel on the sidewall of the cooling chamber;

the numbers and corresponding structure names in the figure are as follows:

1-grading sieve, 2-cooling device, 3-discharging pipe, 4-shell, 5-cooling chamber, 6-air supply cavity, 7-air supply pipe, 8-air supply channel, 81-inclined section, 82-horizontal section, 9-guide plate, 10-support rod, 11-through hole, 12-trumpet tube section, 13-guide block, 14-cavity and 15-connecting rod.

Detailed Description

The present invention will be further described with reference to the accompanying drawings.

The self-cooling rice grading sieve shown in fig. 1-5 comprises a grading sieve 1 and a cooling device 2, wherein the grading sieve 1 is connected with the top of the cooling device 2 through a discharge pipe 3, the cooling device 2 comprises a shell 4 and a cooling chamber 5, an air supply cavity 6 is arranged between the side wall of the cooling chamber 5 and the side wall of the shell 4, the upper part of the shell 4 is communicated with an air supply pipe 7, and air supply channels 8 are arranged on the side wall of the cooling chamber 5 at intervals; the cooling chamber 5 is internally provided with a material guide plate 9 which is arranged in a wave shape in the vertical direction, the upper end of the material guide plate 9 is connected with the lower end of the discharging pipe, the lower end of the material guide plate 9 is connected with a supporting rod 10 positioned at the bottom of the cooling chamber, and through holes 11 which can enable rice to pass through are uniformly distributed on the inclined edge of the material guide plate 9 which is arranged in the wave shape.

The lower extreme of discharging pipe 3 sets up trumpet-shaped pipe section 12, sets up tubaeform water conservancy diversion piece 13 in the trumpet-shaped pipe section 12, has the cavity 14 that enables the rice downward flow between the inner wall of water conservancy diversion piece 13 outer wall and trumpet-shaped pipe section 12, sets up the trumpet-shaped pipe section and matches and be provided with the water conservancy diversion piece, can play the effect of dispersion to the rice that gets into the cooling chamber, and the rice dispersion falls into the cooling chamber and can improve cooling efficiency.

Two guide plates 9 are symmetrically arranged, a cavity is formed between the position corresponding to the guide plates 9 in the horn pipe section 12 and the guide block 13, and the inner walls of the horn pipe sections at other positions are mutually tightly connected with the outer wall of the guide block without a gap, so that the rice passing through the guide block enters the guide plate through the cavity, the rice can be shunted through the guide plate, and the cooling effect of the rice in the cooling chamber is further enhanced.

The guide plate can be in the below of loudspeaker pipeline section the mode that the symmetry set up, also can be the annular setting round the circumference of loudspeaker pipeline section lower extreme, and when the guide plate was the annular setting, the inner wall of loudspeaker pipeline section 12 and the outer wall of guide block 13 all were cavity 14, the place that does not contact each other, and guide block 13 passes through connecting rod 15 to be installed on loudspeaker pipeline section 12.

The air supply channel 8 on the side wall of the cooling chamber comprises an inclined section 81 and a horizontal section 82, wherein the inclined section 81 is inclined downwards from the outer wall of the cooling chamber, the horizontal section 82 is arranged at the lower end of the inclined section 81, and the outlet of the horizontal section 82 is arranged on the inner wall of the cooling chamber. One section that air supply channel is close to the casing is the slope section 81 of downward sloping, the setting is like this in order to avoid the rice to spill the cooling chamber outside through air supply channel, if the wind-force export is for blowing down, so can accelerate the speed of rice whereabouts in guide plate 9, be unfavorable for the abundant cooling of rice, consequently set up horizontal segment 81 at the slope section lower extreme, let wind-force export level, avoid the rice because of receiving the effect of wind force to accelerate the speed of whereabouts, lead to the not good problem of cooling efficiency.

Rice classifying screen, the rice falls to the upper end of stock guide 9 through cavity 14 from classifying screen discharging pipe 3, the rice is at the in-process of stock guide 9 whereabouts, some falls to the slope limit of next-level through-hole 11, some is from the surface of the slope limit of stock guide 9 to whereabouts, so on and so on, until falling to the bottom of cooling chamber 5, and discharge from the cooling chamber bottom, at rice whereabouts in-process, supply-air duct 7 carries the wind to supply-air chamber 6 in, the wind rethread air supply passageway 8 of air supply intracavity gets into the inside rice to the whereabouts of cooling chamber 5 and carries out the forced air cooling, the wind that gets into in the cooling chamber is together discharged from the cooling chamber bottom with the rice.

The rice is firstly dispersed through the flared pipe section and then enters the material guide plate 9 which is arranged in a wave shape along the vertical direction, and the material guide plate 9 is provided with the through holes 11, so that the rice is fully dispersed in the falling process, and the air cooling effect is enhanced; further, the material guide plate 9 is arranged in a wave shape along the vertical direction, rice falls on the material guide plate by one layer, the long rice falling distance is prolonged in a limited space, and the falling speed of the rice is reduced, so that the rice is fully cooled in the cooling chamber.

Claims

1. A white rice classifying screen of self-cooling which characterized in that: the device comprises a grading sieve (1) and a cooling device (2), wherein the grading sieve (1) is connected with the top of the cooling device (2) through a discharge pipe (3), the cooling device (2) comprises a shell (4) and a cooling chamber (5), an air supply cavity (6) is arranged between the side wall of the cooling chamber (5) and the side wall of the shell (4), the upper part of the shell (4) is communicated with an air supply pipe (7), and air supply channels (8) are arranged on the side wall of the cooling chamber (5) at intervals; the rice cooler is characterized in that a material guide plate (9) which is arranged in a wave shape in the vertical direction is arranged in the cooling chamber (5), the upper end of the material guide plate (9) is connected with the lower end of the discharging pipe, the lower end of the material guide plate (9) is connected with a supporting rod (10) which is positioned at the bottom of the cooling chamber, and through holes (11) which can enable rice to pass through are uniformly distributed on the inclined edge of the material guide plate (9) which is arranged in the wave shape.

2. The self-cooling rice grading screen of claim 1, wherein: the lower extreme of discharging pipe (3) sets up loudspeaker pipeline section (12), sets up tubaeform water conservancy diversion piece (13) in loudspeaker pipeline section (12), has between the inner wall of water conservancy diversion piece (13) outer wall and loudspeaker pipeline section (12) and enables cavity (14) that the rice flows downwards.

3. The self-cooling rice grading screen of claim 2, wherein: two material guide plates (9) are symmetrically arranged, a cavity is formed between the position corresponding to the material guide plates (9) in the flared tube section (12) and the flow guide block (13), and the inner walls of the flared tube sections and the outer wall of the flow guide block at other positions are mutually tightly connected without gaps.

4. The self-cooling rice grading screen of claim 1, wherein: the air supply channel (8) on the side wall of the cooling chamber comprises an inclined section (81) and a horizontal section (82), the inclined section (81) is inclined downwards from the outer wall of the cooling chamber, the horizontal section (82) is arranged at the lower end of the inclined section (81), and the outlet of the horizontal section (82) is arranged on the inner wall of the cooling chamber.