Feed raw material crushing device

Abstract

The invention relates to the technical field of feed raw material smashing, and particularly discloses a feed raw material smashing device which comprises a smashing unit and a chain plate type conveyor, a smashing box is arranged in the smashing unit, and smashing wheels are arranged in the smashing box. Feed raw materials enter the position between the two smashing wheels from the feeding area, after being smashed by the smashing wheels, the feed raw materials fall onto the screening plate at the bottom, particles meeting the requirements in the smashed feed raw materials fall into the collecting box from screening holes, and particles not meeting the requirements can move to the position of the chain plate type conveyor along the inclined screening plate; the chain plate type conveyor transports the feed raw materials and lifts the feed raw materials to the position of the feed returning transfer box, then the feed raw materials with large particles are sent to the position of the smashing unit again through the feed returning track and are smashed again, smashing is conducted multiple times, the feed raw materials can be smashed more thoroughly, and the smashing efficiency is improved. And the time for treating unqualified feed raw materials does not need to be reserved independently, so that the processing time can be saved.

Description

Technical Field

[0001] The invention belongs to the technical field of feed raw material crushing, and in particular relates to a feed raw material crushing device. Background Art

[0002] Feed is the general term for food for animals raised by humans. In a narrower sense, feed mainly refers to food for animals raised in agriculture or animal husbandry. Feed includes more than ten types of feed raw materials such as soybeans, soybean meal, corn, fish meal, amino acids, miscellaneous meal, whey powder, oils, meat and bone meal, grains, feed additives, etc.

[0003] In a feed raw material mixing, crushing and drying device with a Chinese patent publication number of CN 108120267 A, it is disclosed that: a stirring blade is fixedly connected to the shaft section of the crushing shaft above the crushing roller; the stirring blade is provided with four blades; a crushing tooth is fixedly connected to the lower left side of the crushing roller, and a stopper is fixedly connected to the inner side walls of the left and right boxes of the crushing roller; a feeding chamber is provided above the stopper; a crushing tooth is provided at the connection between the stopper and the crushing roller; the crushing teeth on the crushing roller mesh with the crushing teeth on the stopper;

[0004] However, the above device has the following problems during use:

[0005] First, the feed raw materials are only crushed once by crushing teeth and crushing rollers. During the process of feed raw materials entering, the amount of feed fed at different locations is different, which will lead to different crushing degrees of feed at different locations, and it is easy to cause the feed raw materials to be crushed into particles larger than the required size;

[0006] Secondly, although the larger particles in the feed raw materials can be screened by the material balancing plate, they still need to be manually fed to the position of the crushing mechanism after screening. When feeding manually, the feeding area is not convenient to control. In order to avoid entering the same area of ​​the crushing mechanism with other feed raw materials, the feeding of other raw materials needs to be stopped during manual feeding. This results in the need to reserve some time during the crushing process of the feed raw materials for separate processing of the feed raw materials that are not completely crushed, which brings many inconveniences to the crushing of the feed raw materials. Therefore, the present application proposes a feed raw material crushing device. Summary of the invention

[0007] The object of the present invention is to provide a feed material crushing device to solve the problems raised by the above background technology.

[0008] To achieve the above object, the present invention provides the following technical solution: a feed raw material crushing device, comprising a crushing unit and a chain plate conveyor, wherein a crushing box is provided in the crushing unit, and a crushing wheel is provided in the crushing box;

[0009] An inclined screening plate is arranged at the lower side of the crushing wheel, and screening holes are arranged in the screening plate;

[0010] The chain plate conveyor includes a loading area and a unloading area. The screening plate in the crushing unit guides the loading area in the chain plate conveyor, and a return material transfer box is provided at the unloading area.

[0011] The return material transfer box is connected to the return material area of ​​the crushing unit through the return material track;

[0012] The return track comprises an extension section and a return section, and the extension section is smoothly connected with the return section.

[0013] Preferably, two crushing wheels are provided, and the two crushing wheels rotate in opposite directions.

[0014] Preferably, a side of the screen plate away from the crushing wheel is provided with a gradually narrowing portion, and a material dividing unit is provided on the upper side of the screen plate.

[0015] Preferably, the material dispensing unit includes a material dispensing barrel, which is connected to a driving mechanism for driving it to rotate intermittently, a plurality of separated material dispensing chambers are arranged in the material dispensing barrel, a pressing plate is arranged on the side of the material dispensing barrel away from its center line, and an arc-shaped portion is arranged on the side of the pressing plate close to the center line of the material dispensing barrel.

[0016] Preferably, the storage plate at the loading area is tilted downward, the return area is aligned with the area between the two crushing wheels, the point where the extension section is connected to the return section is spaced apart from the chain conveyor, the return track of the return section is tilted downward, and the inclination gradient gradually increases.

[0017] Preferably, an arc-shaped portion is provided at the bottom of the return material transfer box, and an inclined plate guiding the arc-shaped portion is provided on the inner wall of the return material transfer box. A return material feeding mechanism is installed at the arc-shaped portion, and the return material feeding mechanism includes a conveying blade, and the lower end surface of the conveying blade is in contact with the inner wall of the bottom of the arc-shaped portion, and the conveying blade is connected to a power mechanism for driving it to rotate.

[0018] Preferably, the return track is inserted into the support plate, and a dust reduction component is installed on the support plate, and the dust reduction component includes an atomizer and a drainage pipe.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. The feed raw materials of the present invention enter between two crushing wheels from the feeding area, are crushed by the crushing wheels, and fall onto the screening plate at the bottom. After crushing, particles that meet the requirements in the feed raw materials fall into the collection box from the screening holes, while particles that do not meet the requirements move along the inclined screening plate to the position of the chain plate conveyor; the chain plate conveyor transports the feed raw materials and raises their height to the position of the return material transfer box, and then the feed raw materials with larger particles are re-sent to the crushing unit position through the return material track and crushed again. Multiple crushing can crush the feed raw materials more thoroughly, and there is no need to set aside time for processing unqualified feed raw materials separately, which can save processing time.

[0021] 2. The present invention sets a dividing unit at the position where the screening plate and the chain plate conveyor are connected to block the feed raw materials, so that the feed raw materials can stay on the screening plate for a longer time, giving the feed raw material particles more screening time. At the same time, the dividing cylinder inside the dividing unit rotates intermittently under the drive of the driving mechanism, and can deliver the feed raw material particles to the chain plate conveyor. At the same time, it can drive the pressing plate to rotate during the rotation process. The pressing plate will squeeze the feed raw materials on the left side during the rotation process, and move it to the side close to the screening plate, thereby allowing the feed raw material particles that meet the requirements to pass through the screening holes, cooperate with the screening plate, and further screen the feed raw material particles, thereby accelerating the screening efficiency.

[0022] 3. The point where the extension section and the return section of the present invention are connected is spaced apart from the chain plate conveyor, in order to extend the overall length of the return track. When the overall height difference of the return track is constant, the feed raw materials therein move more slowly. At the same time, the return track of the return section is inclined downward, and the inclination gradient gradually increases, so that the feed raw materials are gathered to one side of the return track, in order to reduce the space for the feed raw materials to move when they are discharged from the return track. The feed raw materials finally discharged from the return track are more concentrated, which is convenient for control. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of the feed raw material crushing device in the present invention.

[0024] Figure 2 For the present invention Figure 1 Left view of .

[0025] Figure 3 For the present invention Figure 1 Rear view of.

[0026] Figure 4 For the present invention Figure 1 Top view of the .

[0027] Figure 5 It is a schematic diagram of the structure of the material distribution unit and the return material transfer box in the present invention.

[0028] Figure 6 For the present invention Figure 5 Schematic diagram of the structure at A in the middle.

[0029] Figure 7 For the present invention Figure 5 Schematic diagram of the structure at B in the figure.

[0030] In the figure: 1. Crushing unit; 101. Crushing wheel; 102. Feeding area; 103. Returning area; 104. Screening plate; 105. Collecting box; 2. Material dividing unit; 201. Material dividing barrel; 202. Material dividing chamber; 203. Pressing plate; 3. Chain conveyor; 301. Loading area; 302. Unloading area; 4. Returning transfer box; 5. Returning track; 6. Returning feeding mechanism; 7. Dust reduction component. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] Reference Figure 1-Figure 7 A feed material crushing device includes a crushing unit 1 and a chain plate conveyor 3. The crushing unit 1 is provided with a crushing box, and the crushing box is provided with a crushing wheel 101. For details, please refer to Figure 4 There are two crushing wheels 101, and the two crushing wheels 101 rotate in opposite directions. The feeding area 102 is aligned with the area between the two crushing wheels 101. The feed raw materials enter between the two crushing wheels 101 from the feeding area 102, and after being crushed by the crushing wheels 101, they fall onto the screening plate 104 at the bottom.

[0033] Furthermore, an inclined screening plate 104 is provided at the lower side of the crushing wheel 101, and screening holes are provided in the screening plate 104. Particles meeting the requirements in the crushed feed raw materials fall into the collecting box 105 from the screening holes, while particles not meeting the requirements move along the inclined screening plate 104 to the position of the dividing unit 2, and are connected to the chain conveyor 3 via the dividing unit 2.

[0034] Specifically, a narrowing portion is provided on one side of the screening plate 104 away from the crushing wheel 101 , and the narrowing portion can gather larger raw material particles and allow them to enter the position of the material separation unit 2 . The material separation unit 2 is provided on the upper side of the screening plate 104 .

[0035] Since the screening plate 104 is set at an angle, if a large amount of crushed feed raw materials fall onto the screening plate 104, the feed raw materials on the top will directly slide downward along the screening plate 104 and will not pass through the screening holes at the bottom. This will cause some qualified feed raw materials to be unable to pass through the screening holes normally. Therefore, the dividing unit 2 is intercepted at the position where the screening plate 104 is connected to the chain plate conveyor 3 to block the feed raw materials, so that the feed raw materials can stay on the screening plate 104 for a longer time. The feed raw material particles are gradually screened over time, and finally the feed raw material particles that meet the requirements fall into the collecting box 105 instead of directly flowing to the position of the chain plate conveyor 3. If the feed raw material particles that meet the requirements flow to the chain plate conveyor 3 and subsequent components, they will be crushed again by the crushing wheel 101, which will cause the crushed feed raw material particles to be smaller, which is not convenient for subsequent processing of the feed raw materials.

[0036] Specifically, the material dispensing unit 2 includes a dispensing barrel 201, which is connected to a driving mechanism for driving the dispensing barrel 201 to rotate intermittently. A plurality of separated dispensing chambers 202 are arranged in the dispensing barrel 201, and a pressing plate 203 is arranged on the side of the dispensing barrel 201 away from the center line thereof. During the rotation process, when the pressing plate 203 rotates to the position of the sieve plate 104, it is always in contact with the upper end surface of the sieve plate 104, and an arc portion is arranged on the side of the pressing plate 203 close to the center line of the dispensing barrel 201, which can be referred to Figure 5 , Figure 6 The material distribution cylinder 201 rotates intermittently, and can collect the larger feed raw material particles at the screening plate 104 into the material distribution chamber 202. The material distribution chamber 202 rotates to the right, and the feed raw material particles therein can be sent to the chain plate conveyor 3. When the material distribution chamber 202 and the material distribution cylinder 201 rotate, the pressing plate 203 can be driven to rotate. During the rotation of the pressing plate 203, the feed raw materials on the left side will be squeezed (see Figure 6 , the dividing barrel 201 rotates counterclockwise to squeeze the feed raw materials on the left side), allowing it to move to the side close to the screening plate 104, so that the feed raw material particles that meet the requirements pass through the screening holes, and cooperate with the screening plate 104 to further screen the feed raw material particles.

[0037] Furthermore, the chain plate conveyor 3 includes a loading area 301 and a unloading area 302. The screening plate 104 in the crushing unit 1 guides the loading area 301 in the chain plate conveyor 3. A return material transfer box 4 is provided at the unloading area 302. The storage plate at the loading area 301 is tilted downward, so that the feed raw materials entering the loading area 301 are not easy to fall. When rotating to the position of the unloading area 302, the tilted storage plate sends the feed raw materials stored therein into the return material transfer box 4.

[0038] In order to send the feed materials with larger particles back to the grinding unit 1 for grinding, the return material transfer box 4 is connected to the return material area 103 of the grinding unit 1 through the return material track 5, and the return material area 103 is aligned with the area between the two grinding wheels 101.

[0039] Specifically, the return track 5 includes an extension section and a return section. The extension section is smoothly connected to the return section, and there is a gap between the point where the extension section and the return section are connected and the chain plate conveyor 3. The return track 5 of the return section is inclined downward, and the inclination gradient gradually increases, so that the feed raw materials are gathered to one side of the return track 5, and it is also to reduce the space for the feed raw materials to move when they are discharged from the return track 5. There is a gap between the point where the extension section and the return section are connected and the chain plate conveyor 3, which is to extend the overall length of the return track 5. When the overall height difference of the return track 5 is certain, the movement speed of the feed raw materials therein will be slower, and when they are finally discharged from the return track 5, the speed is slower, so that the space required for the feed raw materials to fall from the return track 5 is not large, and the squeezing of the feeding area 102 in the crushing unit 1 is small, that is, the crushing unit 1 can have more space for the entry of new feed raw materials, and the proportion occupied by the return area 103 is small (the feed raw materials that need to be processed by the return area 103 are relatively small, so it should not occupy too large a proportion).

[0040] Furthermore, an arc-shaped portion is provided at the bottom of the return material transfer box 4, and an inclined plate guiding the arc-shaped portion is provided on the inner wall of the return material transfer box 4. A return material feeding mechanism 6 is installed at the arc-shaped portion. The return material feeding mechanism 6 includes a conveying blade, and the lower end surface of the conveying blade is in contact with the inner wall of the bottom of the arc-shaped portion, and the conveying blade is connected to a power mechanism for driving the conveying blade to rotate. The power mechanism drives the conveying blade to rotate, thereby pushing the feed raw materials in the return material transfer box 4 into the return material track 5, which can give the feed raw materials an initial moving force to prevent them from stagnating on the return material track 5;

[0041] Furthermore, the return track 5 is inserted into the support plate, and a dust reduction component 7 is installed on the support plate. The dust reduction component 7 includes an atomizer and a drainage pipe. The drainage pipe is connected to an external water tank. An atomizer is installed on the drainage pipe. The atomizer converts the water flowing thereinto in the drainage pipe into mist, and then sprays the mist water onto the feed raw materials moving on the return track 5, thereby preventing dust mixed in the feed raw materials from being raised.

[0042] Working principle:

[0043] The raw materials of the feed enter between the two grinding wheels 101 from the feeding area 102, and after being crushed by the grinding wheels 101, they fall onto the screening plate 104 at the bottom. After being crushed, the particles that meet the requirements in the feed raw materials fall into the collecting box 105 from the screening holes, while the particles that do not meet the requirements will move along the inclined screening plate 104 to the position of the chain plate conveyor 3.

[0044] The chain plate conveyor 3 transports the feed raw materials and raises them to the position of the return material transfer box 4. Then, the feed raw materials with larger particles are sent back to the position of the crushing unit 1 through the return material track 5 and crushed again. By repeating the above operation, the feed raw materials can be crushed into a suitable size.

[0045] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A feed material pulverizing device, comprising a pulverizing unit (1) and a chain plate conveyor (3), characterized in that: The pulverizing unit (1) is provided with a pulverizing box, and a pulverizing wheel (101) is provided in the pulverizing box; A slanted screening plate (104) is arranged at the lower side of the crushing wheel (101), and screening holes are arranged in the screening plate (104); The chain plate conveyor (3) comprises a loading area (301) and a unloading area (302); the screening plate (104) in the crushing unit (1) guides the loading area (301) in the chain plate conveyor (3); and a return material transfer box (4) is provided at the unloading area (302); The return material transfer box (4) is connected to the return material area (103) of the pulverizing unit (1) via a return material track (5); The return track (5) comprises an expansion section and a return section, and the expansion section is smoothly connected to the return section.

2. A feed material crushing device according to claim 1, characterized in that: Two crushing wheels (101) are provided, and the two crushing wheels (101) rotate in opposite directions.

3. A feed material crushing device according to claim 1, characterized in that: A gradually narrowing portion is provided on the side of the screening plate (104) away from the grinding wheel (101), and a material dividing unit (2) is provided on the upper side of the screening plate (104).

4. A feed material crushing device according to claim 3, characterized in that: The material dispensing unit (2) comprises a material dispensing barrel (201), the material dispensing barrel (201) being connected to a driving mechanism for driving the material dispensing barrel (201) to rotate intermittently, a plurality of separated material dispensing chambers (202) being arranged in the material dispensing barrel (201), a material pressing plate (203) being arranged on a side of the material dispensing barrel (201) away from its center line, and an arc-shaped portion being arranged on a side of the material pressing plate (203) close to the center line of the material dispensing barrel (201).

5. A feed material crushing device according to claim 1, characterized in that: The storage plate at the loading area (301) is tilted downward, the return area (103) is aligned with the area between the two crushing wheels (101), the point where the expansion section is connected to the return section is spaced apart from the chain plate conveyor (3), and the return track (5) of the return section is tilted downward, and the inclination gradually increases.

6. A feed material crushing device according to claim 1, characterized in that: The return material transfer box (4) is provided with an arc-shaped portion at the bottom, and an inclined plate guiding the arc-shaped portion is provided on the inner wall of the return material transfer box (4). A return material feeding mechanism (6) is installed at the arc-shaped portion. The return material feeding mechanism (6) includes a conveying blade, the lower end surface of the conveying blade is in contact with the inner wall of the bottom of the arc-shaped portion, and the conveying blade is connected to a power mechanism for driving the conveying blade to rotate.

7. A feed material crushing device according to claim 1, characterized in that: The return track (5) is inserted into the support plate, and a dust reduction component (7) is installed on the support plate. The dust reduction component (7) includes an atomizer and a drainage pipe.

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