Vertical grain cleaning stoning machine and method for cleaning stoning machine

Abstract

The invention relates to the field of grain cleaning equipment, in particular to a vertical grain cleaning and stoning machine which comprises a support, a grain cleaning chamber and an operation control box, the support is provided with the grain cleaning chamber and a feeding hopper, the upper edge of the grain cleaning chamber is communicated with a light impurity drainage pipe, and the grain cleaning chamber is provided with a water inlet pipe; the lower end of the grain cleaning chamber communicates with a grain and heavy impurity separation pipeline, a heavy impurity storage chamber is arranged at the end, away from the grain cleaning chamber, of the grain and heavy impurity separation pipeline, a jet pipe communicates between the grain and heavy impurity separation pipeline and the heavy impurity storage chamber, and the jet pipe communicates with a constant-pressure water tank. A grain-water mixture lifting mechanism and a grain-water mixture lifting pipeline are arranged on the support, a vibration separating screen is arranged on the support, and a discharging opening used for moving out grains is formed in one side edge of the vibration separating screen, so that the problem that in the prior art, the impurity removing efficiency is low due to the fact that equipment is not stable enough in the grain cleaning and stone removing process is solved; the grain impurity removing device is well applied to grain impurity removing manufacturers.

Description

Technical Field

[0001] The invention belongs to the field of grain cleaning equipment, and in particular relates to a vertical grain cleaning and de-stoning machine and a cleaning and de-stoning machine method. Background Art

[0002] In the process of grain production and processing, it is necessary to clean and remove impurities such as stones, dust and soil from grain raw materials. Failure to remove impurities will seriously affect the quality of grain. Traditional grain raw material cleaning and stone removal equipment has problems such as poor stone removal effect, high energy consumption and complicated operation. Therefore, it is particularly important to design a grain cleaning and stone removal machine with reasonable structure, stable impurity removal and low energy consumption. Summary of the invention

[0003] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a vertical grain cleaning and destoning machine and a cleaning and destoning machine method to solve the problem of low impurity removal efficiency caused by insufficient stability of the equipment in the prior art grain cleaning and destoning process.

[0004] The technical scheme is that the vertical grain cleaning and de-stoning machine comprises a support, a grain cleaning chamber and an operation control box, wherein the support is provided with a grain cleaning chamber and a feed hopper, the upper edge of the grain cleaning chamber is connected with a light impurity drainage pipe, and the grain cleaning chamber is provided with a water inlet pipe, so that the grains to be cleaned enter the grain cleaning chamber through the feed hopper and are mixed with water, and the light impurities with a density less than that of water float on the water surface and are discharged together with the sewage through the light impurity drainage pipe, and the grains and heavy impurities remain in the grain cleaning chamber and are cleaned by the rotating water flow to form a grain-water mixture structure, and the grains are The lower end of the grain cleaning chamber is connected with a grain and heavy impurity separation pipeline, and a heavy impurity storage chamber is arranged at one end of the grain and heavy impurity separation pipeline away from the grain cleaning chamber. A jet pipe is connected between the grain and heavy impurity separation pipeline and the heavy impurity storage chamber, and the jet pipe is connected with a constant pressure water tank, so that water in the constant pressure water tank enters the grain and heavy impurity separation pipeline at a set pressure through the jet pipe. The flow rate of water in the grain and heavy impurity separation pipeline is greater than the grain suspension speed and less than the heavy impurity suspension speed. The heavy impurities move down to the heavy impurity storage chamber by gravity, and the bracket is provided with a structure for driving A grain-water mixture lifting mechanism and a grain-water mixture lifting pipeline for moving the grain-water mixture, one end of the grain-water mixture lifting pipeline is inserted into the grain washing chamber, and the other end extends to the outside of the grain washing chamber, the grain-water mixture lifting mechanism is placed in the grain-water mixture lifting pipeline, so that the grain-water mixture, driven by the grain-water mixture lifting mechanism, flows out of the grain washing chamber along the mixture lifting pipeline at a speed greater than that of grain suspension and less than that of heavy impurities suspension, a vibration separation screen is arranged on the bracket, a screen is arranged inside the vibration separation screen, a cleaning water spray pipe is arranged near the screen, the aperture of the screen is smaller than the outer size of the grain, when the grain-water mixture is removed from the grain-water mixture lifting pipeline and enters the vibration separation screen, under the action of gravity and vibration, water flows down through the mesh holes of the vibration separation screen, the grain remains on the screen, and then meets the water sprayed from the cleaning water spray pipe, the grain is washed again, and the water also flows down through the mesh holes of the vibration separation screen, all the water flowing down through the mesh holes flows into the grain washing chamber, is reused, and saves water, and a discharge port for removing grains is arranged on one side of the vibration separation screen.

[0005] Preferably, one end of the jet pipe away from the constant pressure water tank is connected to a drain pipe. When the vertical grain cleaning and destoning machine is working, the drain pipe is closed, and water is supplied to the grain and heavy impurity separation pipeline at a set pressure by setting the height in the constant pressure water tank.

[0006] Preferably, there are a plurality of cleaning water spray pipes and they are evenly spaced along one end of the vibrating separation screen away from the grain cleaning chamber.

[0007] Preferably, the water inlet pipe is arranged along a tangent line of the circle where the grain cleaning chamber is located.

[0008] A method for cleaning and destoning a vertical grain cleaning and destoning machine comprises the following steps: S1, pouring the grain raw materials to be cleaned and de-stoned into the feed hopper, and the grain raw materials enter the grain cleaning chamber under the action of gravity; S2, the water in the grain washing room, because the water inlet pipe is arranged along the tangent of the circle where the grain washing room is located, and the water outlet is in the tangent direction of the circle where the grain washing room is located, drives the water in the grain washing room to rotate, and the grains coming from the feed hopper rotate with the water, and the light impurities with a density less than that of water float on the water surface and are discharged through the light impurity drainage pipe together with the sewage, and the grains remain in the rotating water in the grain washing room, the grains are washed, and a grain-water mixture is formed, so that the light impurities and the grains are separated; S3, the water in the constant pressure water tank enters the grain and heavy impurities separation pipeline through the jet pipe. Since the water pressure in the constant pressure water tank is constant, the water enters the grain and heavy impurities separation pipeline through the jet pipe at a constant pressure. The flow rate of water in the grain and heavy impurities separation pipeline is greater than the grain suspension speed and less than the heavy impurities suspension speed. The heavy impurities move down to the heavy impurities storage chamber by gravity, and the grains with a low suspension speed cannot enter the grain and heavy impurities separation pipeline, thus achieving the separation of heavy impurities from grains; S4, the grain-water mixture in the grain cleaning chamber is driven by the grain-water mixture lifting mechanism to rise along the mixture lifting pipeline to its outlet. Since the flow rate of the grain-water mixture is greater than the grain suspension speed and less than the heavy impurity suspension speed, only the grain-water mixture flows out of the mixture lifting pipeline outlet without the heavy impurities; S5. When the grain-water mixture is removed from the grain-water mixture lifting pipeline and enters the vibration separation screen, water flows through the mesh holes of the vibration separation screen under the action of gravity and vibration, and the grains remain on the screen. Then, the water meets the water sprayed from the cleaning water spray pipe to clean the grains again. Similarly, water flows through the mesh holes of the vibration separation screen. All the water that flows through the mesh holes flows into the grain cleaning chamber and is reused, saving water. The grains that remain on the screen of the vibration separation screen flow in the set direction under the action of vibration and flow out from the discharge port, realizing the separation of grains and sewage.

[0009] The beneficial effect of the present invention is that the grain raw material enters the grain cleaning chamber through the feed hopper, and is transferred to the grain and heavy impurity separation pipeline under the action of the water inlet pipe and its own gravity. The water flow in the jet pipe impacts the grain raw material, and the stones fall into the heavy impurity storage chamber under gravity. The grain moves to the vibrating separation screen through the grain water mixture lifting pipeline under the impact of the water flow and the buoyancy, and the grain is cleaned and separated under the action of the cleaning water spray pipe. The grain flows out through the discharge port, and the water returns to the water bucket. There is an overflow port on the water bucket, and the excess water and other impurities overflow through the overflow port. After washing, the rice can remove the mixed sand and other impurities and powder ash, so as to obtain cleaner and more hygienic rice. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a structural diagram of the vertical grain cleaning and destoning machine of the present invention; Figure 2 It is a cross-sectional view of the vertical grain cleaning and destoning machine of the present invention.

[0011] Among them: 1. Heavy impurity storage room 2. Bracket 3. Jet pipe 4. Grain cleaning room 5. Constant pressure water tank 6. Light impurity drainage pipe 7. Vibrating separation screen 8. Grain-water mixture lifting pipeline 9. Cleaning water spray pipe 10. Grain-water mixture lifting mechanism 11. Feed hopper 12. Operation control box 13. Grain and heavy impurity separation pipeline 14. Drain pipe 15. Discharge port. DETAILED DESCRIPTION

[0012] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings.

[0013] Embodiment 1: As shown in the drawings of the specification, a vertical grain cleaning and de-stoner includes a bracket 2, a grain cleaning chamber 4 and an operation control box 12. The bracket 2 is fixed with a grain cleaning chamber 4 by bolts, and one end of the grain cleaning chamber 4 close to the ground is a hollow truncated cone structure. The bracket 2 is provided with a feed hopper 11 connected to the grain cleaning chamber 4. The feed hopper 11 is fixed to the bracket 2 by bolts. The feed hopper 11 belongs to the prior art. The grain raw materials to be cleaned and de-stoned enter the grain cleaning chamber 4 through the feed hopper 11. A water inlet pipe is connected to one side of the grain cleaning chamber 4. The water inlet pipe is arranged along the tangent position of the circle where the grain cleaning chamber 4 is located. The water inlet pipe is connected to a water pump, and the water pump is electrically connected to the power supply through the operation control box 12. The grain washing chamber 4 is connected to a light impurity drainage pipe 6 at one end away from the ground, and the grains to be washed are formed, and enter the grain washing chamber 4 through the feed hopper 11 to mix with water. The light impurities with a density less than that of water float on the water surface and are discharged together with the sewage through the light impurity drainage pipe 6. The grains and heavy impurities remain in the grain washing chamber 4 and are washed by the rotating water flow to form a grain-water mixture structure. The grain washing chamber 4 is connected to a grain and heavy impurity separation pipe 13 at one end close to the ground, and a heavy impurity storage chamber 1 is provided at one end away from the grain washing chamber 4. A jet pipe 3 is connected between the grain and heavy impurity separation pipe 13 and the heavy impurity storage chamber 1. The jet pipe 3 is connected to the constant pressure water tank 5, and the water in the constant pressure water tank 5 enters the grain and heavy impurity separation pipe 13 at a set pressure through the jet pipe 3. The flow rate of the water in the grain and heavy impurity separation pipe 13 is greater than the grain suspension speed and less than the heavy impurity suspension speed. The heavy impurities move down to the heavy impurity storage chamber 1 by gravity. The support 2 is provided with a grain-water mixture lifting mechanism 10 and a grain-water mixture lifting pipeline 8 for driving the grain-water mixture to move. The grain-water mixture lifting pipeline 8 is fixed to the support 2 with screws. One end of the grain-water mixture lifting pipeline 8 is placed in the grain cleaning chamber 4, and the other end extends to the outside of the grain cleaning chamber 4. The grain-water mixture lifting mechanism 10 is placed in the grain-water mixture lifting pipeline 8, forming a structure in which the grain-water mixture flows out of the grain cleaning chamber 4 along the mixture lifting pipeline 8 at a speed greater than the grain suspension and less than the heavy impurity suspension under the drive of the grain-water mixture lifting mechanism 10. The lifting mechanism 10 includes a motor electrically connected to a power supply through an operation control box 12. A vibrating separation screen 7 for separating the grain-water mixture removed through the grain-water mixture lifting pipeline 8 is fixed with screws on the support 2. The vibrating separation screen 7 belongs to the prior art. A screen is fixed with screws inside the vibration separation screen 7, and a cleaning water spray pipe 9 is fixed to the bracket 2 by screws near the screen. The aperture of the screen is smaller than the outer size of the grain. When the grain-water mixture is removed from the grain-water mixture lifting pipeline 8 and enters the vibration separation screen 7, water flows through the mesh holes of the vibration separation screen 7 under the action of gravity and vibration, and the grain remains on the screen and meets the water sprayed from the cleaning water spray pipe 9 to wash the grain again. Similarly, water flows through the mesh holes of the vibration separation screen 7. All water flowing through the mesh holes flows into the grain cleaning chamber 4 and is reused to save water.A discharge port 15 for removing grains is provided on one side of the vibrating separation screen 7. A drain pipe 14 is connected to one end of the jet pipe 3 away from the constant pressure water tank 5. The drain pipe 14 is closed when the vertical grain cleaning and de-stoning machine is working. By setting the height in the constant pressure water tank 5, water is supplied to the grain and heavy impurity separation pipeline 13 at a set pressure. There are multiple cleaning water spray pipes 9 and they are evenly spaced along the end of the vibrating separation screen 7 away from the grain cleaning chamber 4.

[0014] The cleaning and de-stoning method of a vertical grain cleaning and de-stoning machine comprises the following steps: S1, pouring the grain raw materials to be cleaned and de-stoned into a feed hopper 11, and the grain raw materials enter the grain cleaning chamber 4 under the action of gravity; S2, the water in the grain cleaning chamber 4, because the water inlet pipe is arranged along the tangent of the circle where the grain cleaning chamber 4 is located, and the water outlet is in the tangent direction of the circle where the grain cleaning chamber 4 is located, drives the water in the grain cleaning chamber 4 to rotate, and the grains entering from the feed hopper 11 rotate together with the water, and the light impurities with a density less than that of water float on the water surface and are mixed with the sewage. The grains are then discharged through the light impurity drainage pipe 6, and the grains remain in the rotating water in the grain cleaning chamber 4 to clean the grains and form a grain-water mixture, thereby separating the light impurities from the grains; S3, the water in the constant pressure water tank 5 enters the grain and heavy impurity separation pipe 13 through the jet pipe 3. Since the water pressure in the constant pressure water tank 5 is constant, the water enters the grain and heavy impurity separation pipe 13 through the jet pipe 3 at a constant pressure. The flow rate of the water in the grain and heavy impurity separation pipe 13 is greater than the grain suspension speed and less than the heavy impurity suspension speed. The heavy impurities rely on gravity to separate the grains. Move down to the heavy impurity storage chamber 1, the grains with low suspension speed cannot enter the grain and heavy impurity separation pipeline 13, thus achieving separation of heavy impurities from grains; S4, the grain-water mixture in the grain cleaning chamber 4, driven by the grain-water mixture lifting mechanism 10, rises to its outlet along the mixture lifting pipeline 8. Since the flow rate of the grain-water mixture is greater than the grain suspension speed and less than the heavy impurity suspension speed, only the grain-water mixture flows out from the outlet of the mixture lifting pipeline 8 without containing heavy impurities; S5. When the grain-water mixture is removed from the grain-water mixture lifting pipeline 8 and enters the vibrating separation screen 7, under the action of gravity and vibration, water flows down through the mesh holes of the vibrating separation screen 7, and the grains remain on the mesh, and then meet the water sprayed from the cleaning water spray pipe 9 to clean the grains again. Similarly, water flows down through the mesh holes of the vibrating separation screen 7. All the water that flows down through the mesh holes flows into the grain cleaning chamber 4 for reuse, saving water, and the grains remaining on the mesh of the vibrating separation screen 7 flow in the set direction under the action of vibration and flow out from the discharge port 15, thus achieving separation of grains from sewage.

[0015] Working principle: After the grain raw materials enter the grain cleaning chamber, the grains and stones sink at the same time, and the sinking speeds of the grains and stones are different. The sinking speed of grains is slower than that of stones, that is, the suspension speeds of the two materials are different. There is a constant pressure water flow in the jet pipe, and the speed of the water flow is greater than the sinking speed of grains but less than the sinking speed of stones. The grains will not fall into the heavy dirt storage chamber, but the stones will fall down, and the grains and stones will be separated through the grain and heavy impurity separation pipeline. The grain-water mixture falls onto the vibrating separation screen through the grain-water mixture lifting pipeline, and the grains flow out from the discharge port, and the water can be recycled. After washing, the grains can remove the mixed sand and other impurities and powder ash, so as to obtain cleaner and more hygienic grains.

[0016] In the present invention, the grain raw material enters the grain cleaning chamber through the feed hopper, and is transferred to the grain and heavy impurity separation pipeline under the action of the water inlet pipe and its own gravity. The water flow in the jet pipe impacts the grain raw material, and the stones fall into the heavy impurity storage chamber under gravity. The grain moves to the vibrating separation screen through the grain water mixture lifting pipeline under the impact of the water flow and the buoyancy, and the grain is cleaned and separated under the action of the cleaning water spray pipe. The grain flows out through the discharge port, and the water returns to the water bucket. There is an overflow port on the water bucket, and the excess water and other impurities overflow through the overflow port. After washing, the rice can remove the mixed sand and other impurities and powder ash, so as to obtain cleaner and more hygienic rice.

[0017] The present invention has been described in detail above through specific implementation modes and embodiments, but these do not constitute limitations of the present invention. Without departing from the principles of the present invention, those skilled in the art may also make many variations and improvements, which should also be regarded as the protection scope of the present invention.

Claims

1. A vertical grain cleaning and destoning machine, comprising a support (2), a grain cleaning chamber (4) and an operation control box (12), It is characterized in that The support (2) is provided with a grain cleaning chamber (4) and a feed hopper (11). A light impurity drainage pipe (6) is connected to the upper edge of the grain cleaning chamber (4). A water inlet pipe is provided on the grain cleaning chamber (4). Grains to be cleaned enter the grain cleaning chamber (4) through the feed hopper (11) and are mixed with water. Light impurities having a density less than that of water float on the water surface and are discharged together with sewage through the light impurity drainage pipe (6). Grains and heavy impurities remain in the grain cleaning chamber (4) and are cleaned by the rotating water flow to form grain water. The structure of the mixture, wherein the lower end of the grain cleaning chamber (4) is connected to a grain and heavy impurity separation pipe (13), an end of the grain and heavy impurity separation pipe (13) away from the grain cleaning chamber (4) is provided with a heavy impurity storage chamber (1), a jet pipe (3) is connected between the grain and heavy impurity separation pipe (13) and the heavy impurity storage chamber (1), the jet pipe (3) is connected to a constant pressure water tank (5), and water in the constant pressure water tank (5) enters the grain and heavy impurity separation pipe (13) at a set pressure through the jet pipe (3). 13), the flow rate of water in the grain and heavy impurities separation pipeline (13) is greater than the grain suspension speed and less than the heavy impurities suspension speed, and the heavy impurities move downward to the heavy impurities storage chamber (1) by gravity, the support (2) is provided with a grain water mixture lifting mechanism (10) and a grain water mixture lifting pipeline (8) for driving the grain water mixture to move, one end of the grain water mixture lifting pipeline (8) is inserted into the grain cleaning chamber (4), and the other end extends to the outside of the grain cleaning chamber (4), the grain water mixture lifting mechanism (10) is placed in the grain water mixture lifting pipeline (8), so that the grain water mixture is driven by the grain water mixture lifting mechanism (10) and flows out of the grain cleaning chamber (4) along the mixture lifting pipeline (8) at a set speed, the support (2) is provided with a vibration separation screen (7), a screen is provided in the vibration separation screen (7), a cleaning water spray pipe (9) is provided near the screen, and a discharge port (15) for removing grain is provided on one side of the vibration separation screen (7).

2. The vertical grain cleaning and destoning machine according to claim 1, It is characterized in that One end of the jet pipe (3) away from the constant pressure water tank (5) is connected to a water discharge pipe (14).

3. The vertical grain cleaning and destoning machine according to claim 1, It is characterized in that There are a plurality of cleaning water spray pipes (9) which are evenly spaced and arranged along one end of the vibrating separation screen (7) away from the grain cleaning chamber (4).

4. The vertical grain cleaning and destoning machine according to claim 1, It is characterized in that The water inlet pipe is arranged along a tangent line of the circle where the grain cleaning chamber (4) is located.

5. The method for cleaning and destoning a vertical grain cleaning and destoning machine according to claim 1, comprising the following steps: S1, pouring the grain raw materials to be cleaned and de-stoned into the feed hopper (11), and the grain raw materials enter the grain cleaning chamber (4) under the action of gravity; S2, water is introduced into the water inlet pipe arranged along the tangent direction of the circle where the grain cleaning chamber (4) is located, so that the water in the grain cleaning chamber (4) and the grains entering through the feed hopper (11) rotate together and clean the grains, and light impurities with a density less than that of water float on the water surface and are discharged together with the sewage through the light impurity drainage pipe (6); S3, water in the jet tube (3) enters the grain and heavy debris separation pipe (13) at a set pressure, and the heavy debris moves down to the heavy debris storage chamber (1) by gravity, thereby separating the heavy debris from the grain; S4, the grain-water mixture in the grain cleaning chamber (4) is driven by the grain-water mixture lifting mechanism (10) to rise along the mixture lifting pipeline (8) to its outlet; S5, the grain-water mixture is removed from the grain-water mixture lifting pipeline (8) and enters the vibrating separation screen (7) to separate the grain and water, and the water is sprayed through the cleaning water spray pipe (9). After the grain is cleaned again, the vibrating separation screen (7) moves the grain to the discharge port.

Images