A biological fertilizer production system

Abstract

A biofertilizer production system includes a mixing unit for mixing various raw materials and a granulating unit for granulating the mixed materials. The mixing unit is composed of a feeding device and a mixing device. The mixing device includes a first mixing device for primary mixing and a second mixing device for secondary mixing; the first and second mixing devices are both disc mixers. The above-mentioned biofertilizer production system has low equipment cost, small occupied site area, convenient operation, good screening effect of crushed materials and qualified particles, and improved product quality.

Description

Technical Field

[0001] The invention relates to the field of bio-fertilizer production, and in particular to a bio-fertilizer production system. Background Art

[0002] At present, there are three main defects in the production of granular bio-fertilizer. The first is that the bio-fertilizer production system occupies a large space, the equipment cost of the entire system is high, and the operation of the bio-fertilizer production system is complicated; the second is that in the traditional bio-fertilizer production system, the roller used for the granulator is easy to stick to the fertilizer particles, resulting in a large number of unqualified particles; the third is that in the subsequent screening process of the produced fertilizer particles, there is an incomplete separation of crushed materials and particles, resulting in too much crushed materials in the finished bio-fertilizer. Summary of the invention

[0003] In order to solve the above problems, the present invention provides a biological fertilizer production system.

[0004] A biofertilizer production system is characterized by comprising a mixing unit for mixing various raw materials and a granulating unit for granulating the mixed materials, wherein the mixing unit is composed of a feeding device and a mixing device.

[0005] A further solution is that the mixing device includes a first mixing device for performing primary mixing and a second mixing device for performing secondary mixing.

[0006] The first and second mixing devices are both disc mixers.

[0007] The mixing unit also includes a first conveying device, which is arranged in an inclined shape. The lower end of the first conveying device is a feeding end. The feeding device is composed of a feeding hopper arranged at the feeding end of the first conveying device. The high end of the first conveying device is a discharging end and the discharging end is arranged corresponding to the mouth of the first mixing device.

[0008] It also includes a second and a third conveying device, the second conveying device is arranged in an inclined shape, the outlet of the first mixing device is arranged corresponding to the low end of the second conveying device, the high end of the second conveying device is the unloading end, the high end of the second conveying device is arranged corresponding to the second mixing device, the outlet of the second mixing device is connected to the feeding port of the granulator constituting the granulation unit through the third conveying device, the inclination directions of the first and third conveying devices are consistent, and the conveying directions of the first and second conveying devices are opposite.

[0009] The granulator is a double-roll granulator.

[0010] The material discharging port of the granulator is connected with the vibrating screen, and a material blocking piece is arranged on the screen mesh surface at the material discharging port of the vibrating screen.

[0011] The material blocking member is composed of a circular rod member, the length direction of the material blocking member and the flow direction of the fertilizer particles on the vibrating screen are arranged in an angle shape, and the material blocking member is composed of an expandable pipe member.

[0012] The crushed material outlet of the screening machine is connected to the feed end of the second conveying device. The first, second and third conveying devices are composed of belt conveyor belts with shallow grooves on the upper belts. The feeding device and the second mixing device are arranged on the same side, and the first mixing device, screening machine and granulator are arranged on the same side.

[0013] The screening machine comprises a casing and first and second granulating rollers arranged opposite to each other in the casing, the first and second granulating rollers are respectively fixedly connected to the first and second driving shafts outside the casing, the first and second driving shafts are respectively provided with first and second cleaning pieces, the first and second impact rods are respectively provided on the sides of the first and second cleaning pieces, the rod length directions of the first and second impact rods are consistent with the radial directions of the first and second driving shafts, the first and second impact rods are respectively movably installed along the radial directions of the first and second driving shafts and are respectively equipped with first and second springs, the first and second cleaning pieces have the same structure, the first and second impact rods have the same structure, the first cleaning piece is the first driving shaft The first material cleaning piece is composed of an adjusting abutment block fixedly assembled on the moving shaft, the outer contour of the first material cleaning piece is composed of an arc and a straight line, the two ends of the arc are respectively marked as end a and end b, ends a and b are connected by a straight line, the straight line is arranged along the radial direction of the first driving shaft, and the distance between each point on the arc from end a to end b and the center line of the first driving shaft gradually increases, the end of the first impact rod close to the first driving shaft is arranged in a hemispherical shape and the end is abutted against the outer peripheral wall of the first material cleaning piece, the first spring drives the impact rod to move toward the side close to the first driving shaft, and the first spring is compressed when the first material cleaning piece abuts against the first impact rod to move away from the first driving shaft.

[0014] The beneficial effects of the present invention are: the equipment cost of the biofertilizer production system is low, the occupied area is small, the operation is convenient, and the screening effect of crushed materials and qualified particles is good, thereby improving the product quality. At the same time, the problem that the traditional granulation mechanism is easy to stick to the particles can be solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the present invention;

[0016] Figure 2 for Figure 1 A top view of

[0017] Figure 3 for Figure 1 Side view of

[0018] Figure 4 It is a schematic diagram of the assembly between the first cleaning member and the first driving shaft;

[0019] Figure 5It is a structural schematic diagram of the first cleaning component.

[0020] The corresponding relationship between the reference numerals and components in the figure is as follows:

[0021] 11-feeding device, 12-first conveying device, 13-first mixing device, 14-second conveying device, 15-second mixing device, 16-third conveying device, 17-granulator, 18-screening machine, 20-first cleaning piece, 21-first impact rod, 22-first spring, 23-first assembly cylinder, 24-first and second granulation rollers, 25-first driving shaft. DETAILED DESCRIPTION

[0022] In order to make the purpose and advantages of the present invention more clearly understood, the present invention is specifically described below in conjunction with embodiments. It should be understood that the following text is only used to describe one or several specific embodiments of the present invention, and does not strictly limit the scope of protection of the specific claims of the present invention.

[0023] As used herein, the terms "parallel," "perpendicular," and the like are not limited to their strict geometric definitions, but include tolerances for reasonable and inconsistent machining or human errors.

[0024] like Figure 1 , 2As shown, a biofertilizer production system includes a mixing unit for mixing various raw materials and a granulation unit for granulating the mixed materials, and the mixing unit is composed of a feeding device 11 and a mixing device. A further scheme is: the mixing device includes a first mixing device 13 for primary mixing and a second mixing device 15 for secondary mixing; the first and second mixing devices are both disc mixers. The mixing unit also includes a first conveying device 12, which is arranged in an inclined shape, and the lower end of the first conveying device 12 is a feeding end. The feeding device 11 is composed of a feeding hopper arranged at the feeding end of the first conveying device 12, and the high end of the first conveying device 12 is a discharge end and the discharge end is arranged corresponding to the mouth of the first mixing device 13. It also includes a second and a third conveying device, the second conveying device 14 is arranged in an inclined shape, the outlet of the first mixing device 13 is arranged corresponding to the lower end of the second conveying device 14, the upper end of the second conveying device 14 is the discharge end, the upper end of the second conveying device 14 is arranged corresponding to the second mixing device 15, the outlet of the second mixing device 15 is connected to the feeding port of the granulator 17 constituting the granulation unit through the third conveying device 16, the inclination direction of the first and third conveying devices is consistent, and the conveying directions of the first and second conveying devices are opposite. The granulator 17 is a roller granulator 17. The crushed material outlet of the sieving machine 18 is connected to the feeding end of the second conveying device 14, the first, second and third conveying devices are composed of belt conveyors with shallow grooves on the upper belt, the feeding device 11 and the second mixing device 15 are arranged on the same side, and the first mixing device 13, the sieving machine 18 and the granulator 17 are arranged on the same side.

[0025] The biofertilizer production system of the above structure can minimize the cost of the equipment while ensuring various functions required for biological production. The entire system only occupies a site area of ​​about 10 square meters, which is small in area and easy to operate.

[0026] Furthermore, the discharge port of the granulator 17 is connected to the vibrating screen, and a material blocking piece is provided on the screen mesh surface at the discharge port of the vibrating screen. The material blocking piece is composed of a circular rod, and the length direction of the material blocking piece is arranged at an angle to the flow direction of the fertilizer particles in the vibrating screen, and the material blocking piece is composed of an expandable pipe. The setting of the material blocking piece can extend the residence time of the crushed material on the screening net, and the complete particles can flow out normally and reliably, so that the crushed material can be screened. The material blocking piece is arranged to be composed of an expandable pipe, mainly to meet the production needs of different products.

[0027] The preferred solution is that the screening machine 18 includes a casing and first and second granulating rollers 24 arranged opposite to each other in the casing, the first and second granulating rollers 24 are fixedly connected to the first and second driving shafts outside the casing, respectively, the first and second driving shafts are respectively provided with first and second cleaning pieces, the first and second cleaning pieces are respectively provided with first and second impact rods on the sides thereof, the rod length directions of the first and second impact rods are consistent with the radial directions of the first and second driving shafts, the first and second impact rods are respectively movably installed along the radial directions of the first and second driving shafts and the first and second springs are respectively mounted thereon, the first and second cleaning pieces have the same structure, the first and second impact rods have the same structure, the first cleaning piece 20 is on the first driving shaft 25 The first cleaning member 20 is composed of an adjustable abutment block that is fixedly assembled, and the outer contour of the first cleaning member 20 is composed of an arc and a straight line. The two ends of the arc are respectively recorded as end a and end b, and ends a and b are connected by a straight line. The straight line is arranged along the radial direction of the first drive shaft 25. The distance between each point on the arc from end a to end b and the center line of the first drive shaft 25 gradually increases. The end of the first impact rod 21 close to the first drive shaft 25 is set to be hemispherical and the end is abutted against the outer peripheral wall of the first cleaning member 20. The first spring 22 drives the impact rod to move toward the side close to the first drive shaft 25. When the first cleaning member 20 abuts against the first impact rod 21 and moves away from the first drive shaft 25, the first spring 22 is compressed. Specifically, a first assembly cylinder 23 is set on the frame, and the first impact rod 21 and the first spring 22 are assembled in the first assembly cylinder 23.

[0028] The above structure can knock the first and second drive shafts at the same time as the first and second granulating rollers, thereby vibrating the first and second granulating rollers to make the bonded particles fall off reliably, thereby solving the problem of easy bonding of particles in the traditional granulator 17, and has a simple structure and low implementation cost.

[0029] The above is only a preferred embodiment of the present invention. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principles of the present invention, and these improvements and modifications should also be considered as the protection scope of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to the conventional means in the art unless otherwise specified and limited.

Claims

1. A biofertilizer production system, characterized in that: It includes a mixing unit for mixing various raw materials and a granulation unit for granulating the mixed materials, the mixing unit is composed of a feeding device and a mixing device; the mixing device includes a first mixing device for primary mixing and a second mixing device for secondary mixing; the first and second mixing devices are both disc mixers; the mixing unit also includes a first conveying device, the first conveying device is arranged in an inclined shape, the lower end of the first conveying device is the feeding end, the feeding device is composed of a feeding hopper arranged at the feeding end of the first conveying device, the high end of the first conveying device is the discharging end and the discharging end is arranged corresponding to the mouth of the first mixing device; it also includes a second and a third conveying device, the second conveying device is arranged in an inclined shape, the outlet of the first mixing device corresponds to the lower end of the second conveying device, the high end of the second conveying device is the discharging end, the high end of the second conveying device corresponds to the second mixing device, the outlet of the second mixing device is connected to the feeding port of the granulator constituting the granulation unit through the third conveying device, the inclination directions of the first and third conveying devices are consistent, and the conveying directions of the first and second conveying devices are opposite; The granulator is a double-roll granulator; the crushed material outlet of the screening machine is connected to the feeding end of the second conveying device, the first, second and third conveying devices are composed of belt conveyors with shallow grooves on the upper belt, the feeding device and the second mixing device are arranged on the same side, and the first mixing device, the screening machine and the granulator are arranged on the same side; the screening machine includes a casing and first and second granulating rollers arranged opposite to each other in the casing, the first and second granulating rollers are respectively fixedly connected to the first and second driving shafts outside the casing, the first and second driving shafts are respectively provided with first and second cleaning parts, the first and second impact rods are respectively provided on the sides of the first and second cleaning parts, the rod length direction of the first and second impact rods is consistent with the radial direction of the first and second driving shafts, and the first and second impact rods are respectively arranged to move along the radial direction of the first and second driving shafts. The first and second springs are respectively installed thereon, the first and second cleaning pieces have the same structure, the first and second impact rods have the same structure, the first cleaning piece is composed of an adjusting abutment block fixedly installed on the first driving shaft, the outer contour of the first cleaning piece is composed of an arc and a straight line, the two ends of the arc are respectively recorded as end a and end b, the a and b ends are connected by a straight line, the straight line is arranged along the radial direction of the first driving shaft, and the distance between each point on the arc from end a to end b and the center line of the first driving shaft gradually increases, the end of the first impact rod close to the first driving shaft is arranged in a hemispherical shape and the end is abutted against the outer peripheral wall of the first cleaning piece, the first spring drives the impact rod to move toward the side close to the first driving shaft, and the first spring is compressed when the first cleaning piece abuts against the first impact rod to move away from the first driving shaft.

2. The biofertilizer production system according to claim 1, characterized in that: The material discharging port of the granulator is connected with the vibrating screen, and a material blocking piece is arranged on the screen mesh surface at the material discharging port of the vibrating screen.

3. The biofertilizer production system according to claim 2, characterized in that: The material blocking member is composed of a circular rod member, the length direction of the material blocking member and the flow direction of the fertilizer particles on the vibrating screen are arranged in an angle shape, and the material blocking member is composed of an expandable pipe member.

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