CN217699994U

CN217699994U - Grain screening plant

Info

Publication number: CN217699994U
Application number: CN202221258078.XU
Authority: CN
Inventors: 高广恒; 李海波
Original assignee: Cccc Mechanical & Electrical Engineering Co ltd
Current assignee: Cccc Mechanical & Electrical Engineering Co ltd
Priority date: 2022-05-24
Filing date: 2022-05-24
Publication date: 2022-11-01
Anticipated expiration: 2032-05-24

Abstract

The utility model discloses a grain screening plant, which comprises a shell which is obliquely arranged on a workbench, wherein a first flow passage and a second flow passage are arranged in the shell, the second flow passage is arranged below the first flow passage, and the first flow passage is communicated with the second flow passage through a screen mesh; the grain distribution device comprises a first flow channel, a second flow channel and a screen, wherein the upper end and the lower end of the first flow channel are respectively provided with a feed inlet and a sundries outlet, the bottom of the second flow channel is provided with a grain outlet, a mixed material entering from the feed inlet is divided into a grain material and sundries through the screen, the grain material falls into the second flow channel and flows out from the grain outlet, the sundries are in the first flow channel and flow out from the sundries outlet, and the feed inlet is internally provided with a distribution dividing device. The utility model discloses realize the unpowered screening of other debris such as rope made of hemp, sack, ironware of doping in the grain, do not consume the electric energy, simple structure, distributing device is reliable durable, is applied to the edulcoration operation of grain deposit in-process.

Description

Grain screening plant

Technical Field

The utility model relates to a screening technical field, concretely relates to grain screening plant.

Background

Grain storage is one of the major strategic guidelines in China, makes stored grain storage management work, and has important effects on guaranteeing national grain safety, implementing grain macro-regulation and control, balancing grain supply, ensuring social stability and promoting the sustainable development of national economy.

Present multiple grain screening plant passes through the screen cloth through power component drive bulk grain to separate impurity in the grain with grain, but bulk grain is when collecting probably can adulterate parts such as rope made of hemp, sack piece, iron sheet, when large batch grain is put into the storehouse operation, rope made of hemp, sack piece etc. are probably twined on mechanized equipment, lead to the production to shut down, big articles such as some iron sheets can cause drive component's in the equipment wearing and tearing, cause the card machine, damage automation equipment's life-span.

Therefore, a grain screening device is needed, which screens hemp ropes, cloth bags, iron pieces and other impurities doped in grains in advance, and prevents the influence on the operation safety and the operation efficiency of grain system equipment.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a grain screening plant to debris in the grain among the solution prior art lead to the not smooth technical problem of equipment drive.

In order to solve the above technical problem, the utility model particularly provides the following technical scheme:

the utility model provides a grain screening plant, which comprises a shell which is obliquely arranged on a workbench, wherein a first flow passage and a second flow passage are arranged in the shell, the second flow passage is arranged below the first flow passage, and the first flow passage is communicated with the second flow passage through a screen;

the grain distribution device comprises a first flow channel, a second flow channel and a screen, wherein the upper end and the lower end of the first flow channel are respectively provided with a feed inlet and a sundries outlet, the bottom of the second flow channel is provided with a grain outlet, a mixed material entering from the feed inlet is divided into a grain material and sundries through the screen, the grain material falls into the second flow channel and flows out from the grain outlet, the sundries are in the first flow channel and flow out from the sundries outlet, and the feed inlet is internally provided with a distribution dividing device.

As a preferred scheme of the utility model, be provided with first flex point on the first runner, with first flex point is the demarcation point, the slope gradient grow of first runner, the vertical setting of miscellaneous mouthful.

As a preferred scheme of the utility model, a second inflection point is arranged on the second flow channel, the second inflection point is taken as a boundary point, the slope gradient of the second flow channel is increased, and the grain outlet is vertically arranged;

the height of the second inflection point is higher than the first inflection point in the horizontal direction.

As a preferred embodiment of the present invention, the screen is located between the first inflection point and the feed inlet.

As an optimized scheme of the utility model, first runner with the junction of second runner is provided with the access door, the length of access door with the length of screen cloth is the same.

As a preferred scheme of the utility model, cloth diverging device includes that a plurality of radial settings are in separation cloth in the first runner, separation cloth slope sets up in the first runner, separation cloth will the width direction of screen cloth is divided into a plurality of and casts the runner.

As a preferred scheme of the utility model, first runner with all be provided with a plurality of on the outer wall of second runner and prevent stifled door.

As an optimized scheme of the utility model, first runner with all be provided with the visual window of a plurality of on the outer wall of second runner.

Compared with the prior art, the utility model following beneficial effect has:

1. the utility model screens hemp ropes, cloth bags, iron pieces and other sundries doped in grains, does not use complex driving elements in the screening process, does not wear machinery in the screening process, has simple structure and easy operation, and can also be applied to sundries in other granular and large-fluidity materials;

2. the utility model discloses unpowered screening plant, the device do not need outside power, do not consume the electric energy.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.

Fig. 1 is a schematic side view of a grain sieving device according to an embodiment of the present invention;

fig. 2 is a schematic front structural view of a grain sieving device according to an embodiment of the present invention;

fig. 3 is an enlarged view of the structure of the cloth distribution device according to the embodiment of the present invention.

The reference numerals in the drawings denote the following, respectively:

1-a shell; 2-a first flow channel; 3-a second flow channel; 4-screening the screen; 5-a feed inlet; 6-impurity outlet; 7-grain outlet; 8-a distribution shunting device; 9-first inflection point; 10-second inflection point; 11-an access door; 12-an anti-blocking door; 13-a visual window; 14-a blocking alarm switch;

801-separation cloth; 802-projectile flow channel.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1 and 3, the utility model provides a grain screening plant, install casing 1 on the workstation including the slope, be provided with first runner 2 and second runner 3 in the casing 1, second runner 3 sets up the below of first runner 2, first runner 2 with second runner 3 passes through screen cloth 4 intercommunication.

The upper end and the lower end of the first flow passage 2 are respectively provided with a feed inlet 5 and a sundry outlet 6, the bottom of the second flow passage 3 is provided with a grain outlet 7, a mixed material entering from the feed inlet 5 is divided into a grain material and a sundry material through the screen 4, the grain material falls into the second flow passage 3 and flows out from the grain outlet 7, the sundry material is in the first flow passage 2 and flows out from the sundry outlet 6, and a material distributing and distributing device 8 is arranged in the feed inlet 5.

Specifically, bulk grain or other flowable materials are poured into the feed inlet 5, the materials flow in the first flow channel 2 and pass through the screen 4 in the flow process, at the moment, the materials smaller than the mesh diameter of the screen 4 fall into the second flow channel 3 under the action of gravity and finally flow out from the grain outlet 7, the materials larger than the mesh diameter of the screen 4 are remained in the first flow channel 2 and flow out from the impurity outlet 6 under the drive of the inclined first flow channel 2, and the materials are screened.

The cloth diverging device 8 can be shunted the combined material that gets into feed inlet 5 for the area of contact grow of combined material and screen cloth 4 improves screening speed.

Preferably, in order to improve the screening effect of the first flow channel 2, a first inflection point 9 is provided on the first flow channel 2, the first inflection point 9 is used as a dividing point, the inclination of the first flow channel 2 is increased, and the impurity outlet 6 is vertically provided.

The mixing material at first enters into first runner 2, the tipping pin angle that is located first runner 2 of first flex point 9 top is little, the velocity of flow of mixing material this moment is little, be favorable to sieving the material that the diameter is little to second runner 3, debris after the screening enters into behind first flex point 9 below, the material has sieved at this moment and has accomplished, in order to prevent the putty, need increase the slope, the unloading speed of miscellaneous material increases simultaneously, be favorable to improving the screening speed, reduce the probability of putty.

Preferably, in order to further improve the blanking rate of the grain materials, a second inflection point 10 is arranged on the second flow channel 3, the second inflection point 10 is taken as a dividing point, the inclination of the second flow channel 3 is increased, and the grain outlet 7 is vertically arranged.

The second inflection point 10 is higher in height than the first inflection point 9 in the horizontal direction.

In order to prevent the grain materials from accumulating in the second flow channel 3 to cause material accumulation, the second flow channel 3 is a variable-diameter flow channel, and the height of the second inflection point 10 is higher than that of the first inflection point 9 because the number of the grain materials is far greater than that of the miscellaneous materials.

Preferably, the first flow channel 2 located below the first inflection point 9 is arranged in an inward inclined manner in the paper surface direction of fig. 2, so that the grain outlet 7 and the impurity outlet 6 are separated in the horizontal direction, and mutual pollution of grains and impurities is prevented.

Preferably, the screen 4 is located between the first inflection point 9 and the feed opening 5.

Preferably, the junction of first flow channel 2 with second flow channel 3 is provided with access door 11, the length of access door 11 with the length of screen cloth 4 is the same, and screen cloth 4 can be followed access door 11 roll-off in first flow channel 2 and second flow channel 3, and this practicality has the screen cloth 4 of multiple different apertures to select, can replace screen cloth 4 through opening access door 11 to the material screening that supplies different apertures.

In this embodiment, the distribution splitting device 8 includes a plurality of partition cloths 801 radially disposed in the first flow channel 2, the partition cloths 801 are obliquely disposed in the first flow channel 2, the partition cloths 801 divide the width direction of the screen 4 into a plurality of casting flow channels 802, the partition cloths 801 divide the mixed material into a plurality of strands, and the material is cast in the first flow channel 2 through the casting flow channels 802, so that the material flow is spread and thinned in the width direction of the screen 4.

Preferably, first runner 2 with all be provided with a plurality of on the outer wall of second runner 3 and prevent stifled door 12, when putty in the runner, can open and prevent stifled door 12, adopt external force to dredge the runner.

Preferably, a plurality of viewing windows 13 are arranged on the outer walls of the first flow channel 2 and the second flow channel 3.

Preferably, the upper end and the lower end of the first flow channel 2 and the upper end and the lower end of the second flow channel 3 are both provided with a blocking alarm switch 14, and the blocking alarm switch 14 can alarm after the screen 4 is blocked and the impurity outlet 6 is blocked, and can send a stop signal by interlocking with upstream system equipment, so that the upstream system equipment stops feeding the feeding port 5.

Through the grain screening plant of this embodiment, can realize the screening of other debris such as rope made of hemp, sack, ironware of adulteration in the grain, also can be applied to the device of debris in the screening grain or other graininess, the big mobility material, and the device does not need external power, does not consume the electric energy, and this device simple structure, and screen cloth change convenient operation, and the distributing device does not have movable part reliably durable, and the complete machine does not consume the electric energy, can be applied to the edulcoration operation of grain deposit in-process.

The above embodiments are only exemplary embodiments of the present application, and are not intended to limit the present application, and the protection scope of the present application is defined by the claims. Various modifications and equivalents may be made by those skilled in the art within the spirit and scope of the present application and such modifications and equivalents should also be considered to be within the scope of the present application.

Claims

1. The grain screening device is characterized by comprising a shell (1) which is obliquely arranged on a workbench, wherein a first flow passage (2) and a second flow passage (3) are arranged in the shell (1), the second flow passage (3) is arranged below the first flow passage (2), and the first flow passage (2) is communicated with the second flow passage (3) through a screen (4);

the grain distribution device is characterized in that a feed inlet (5) and a sundry outlet (6) are respectively arranged at the upper end and the lower end of the first flow channel (2), a grain outlet (7) is arranged at the bottom of the second flow channel (3), mixed materials entering from the feed inlet (5) are distributed into grains and sundry materials through the screen (4), the grains fall into the second flow channel (3) and flow out from the grain outlet (7), the sundry materials are in the first flow channel (2) and flow out from the sundry outlet (6), and a distribution device (8) is arranged in the feed inlet (5).

2. A grain screening device according to claim 1, characterized in that the first flow channel (2) is provided with a first inflection point (9), the first inflection point (9) is taken as a dividing point, the slope of the first flow channel (2) is increased, and the impurity outlet (6) is vertically arranged.

3. A grain screening device according to claim 2, characterized in that a second inflection point (10) is arranged on the second flow channel (3), the second inflection point (10) is taken as a dividing point, the inclination of the second flow channel (3) is increased, and the grain outlet (7) is vertically arranged;

the second inflection point (10) has a height higher than the first inflection point (9) in the horizontal direction.

4. A grain screening device according to claim 3, characterized in that the screen (4) is located between the first inflection point (9) and the feed inlet (5).

5. A grain screening device according to claim 1, characterized in that the connection of the first flow channel (2) and the second flow channel (3) is provided with an access door (11), the length of the access door (11) being the same as the length of the screen (4).

6. A grain screening device according to claim 1, characterized in that the distribution flow divider means (8) comprises a plurality of partition cloths (801) arranged radially inside the first flow channel (2), the partition cloths (801) being arranged obliquely inside the first flow channel (2), the partition cloths (801) dividing the width direction of the screen (4) into a plurality of casting flow channels (802).

7. A grain screening device according to claim 1, characterised in that the outer walls of the first flow channel (2) and the second flow channel (3) are provided with a number of anti-blocking doors (12).

8. A grain screening device according to claim 1, characterized in that the outer walls of the first flow channel (2) and the second flow channel (3) are provided with a number of viewing windows (13).