Conveying system for chicken manure drying

Abstract

The utility model relates to the technical field of chicken manure treatment, in particular to a conveying system for drying chicken manure, which comprises a first-stage feeding unit, a second-stage feeding unit and a third-stage feeding unit, one end of the return unit is positioned on the drying equipment and is used for receiving the dried chicken manure; the mixing unit is communicated with the primary feeding unit and the returning unit and is used for mixing fresh chicken manure and dry chicken manure; the secondary feeding unit is arranged at the discharging end of the mixing unit so as to convey the mixed chicken manure to drying equipment; the other end of the material returning unit is provided with a first port and a second port; the first port is communicated with the material mixing unit; and the second port conveys the dried chicken manure to the next process. According to the conveying system, the remaining part of the dried chicken manure is mixed with the fresh chicken manure, feeding is carried out while discharging is carried out, mixing is carried out in the feeding process, the water content of the chicken manure needing to be dried is reduced, and the chicken manure is prevented from blocking air holes of drying equipment.

Description

Technical Field

[0001] The utility model relates to the technical field of chicken manure treatment, in particular to a conveying system for drying chicken manure. Background Art

[0002] Chicken manure contains rich nutrients and trace elements and can be made into organic fertilizer or feed. However, chicken manure contains a large amount of moisture, so chicken manure needs to be dried before use.

[0003] In the prior art, there is a box-type drying device. The drying device has multiple drying chambers. The bottom plate of each drying chamber has small ventilation holes. Fresh chicken manure is spread flat in the drying chamber, and air is blown into the drying chamber by a blower so that the air flow passes through the ventilation holes and penetrates through the inside of the chicken manure to achieve drying.

[0004] However, for chicken manure with high water content, the chicken manure is extremely easy to block the ventilation holes, and the gaps inside the chicken manure are filled with water, and it is difficult for the air flow to pass through the gaps and penetrate through the chicken manure, resulting in the chicken manure not being able to be dried. And if the blocked ventilation holes are not cleaned in time, it will also affect the next drying. Seriously affecting the drying efficiency of the equipment. Summary of the Utility Model

[0005] To solve the above-mentioned problems in the prior art, the utility model provides a conveying system for drying chicken manure, including:

[0006] A primary feeding unit for conveying fresh chicken manure;

[0007] A return material unit, one end of which is located at the drying device for receiving the dried chicken manure that has completed drying;

[0008] A mixing unit, which is communicated with the primary feeding unit and the return material unit for mixing fresh chicken manure and dried chicken manure;

[0009] A secondary feeding unit, which is arranged at the discharge end of the mixing unit to convey the mixed chicken manure to the drying device;

[0010] Wherein, the other end of the return material unit has a first port and a second port;

[0011] The first port is communicated with the mixing unit;

[0012] The second port conveys the dried chicken manure that has completed drying to the next process.

[0013] Further, it includes: a first monitoring unit and a second monitoring unit;

[0014] The first monitoring unit receives the dried chicken manure conveyed by the primary feeding unit and conveys the dried chicken manure to the mixing unit;

[0015] The second monitoring unit receives the fresh chicken manure conveyed by the first port of the return material unit and conveys the fresh chicken manure to the mixing unit;

[0016] The first monitoring unit and the second monitoring unit control the volume of the received chicken manure and weigh the chicken manure;

[0017] A calculation unit calculates the moisture content of the chicken manure according to the weight information measured by the first monitoring unit and the second monitoring unit;

[0018] A control unit controls the conveying speed of the primary feeding unit and / or the return material unit according to the moisture content.

[0019] Further, both the first monitoring unit and the second monitoring unit include:

[0020] A measuring conveyor belt conveys the chicken manure to the mixing unit;

[0021] A weighing device is arranged below the conveying surface of the measuring conveyor belt;

[0022] Wherein, the measuring conveyor belt has side baffles, and the side baffles define the width of the chicken manure entering the measuring conveyor;

[0023] Wherein, the measuring conveyor belt further has a limiting scraper, and the limiting scraper spans both sides of the measuring conveyor belt and divides the measuring conveyor belt into a feeding area and a measuring area;

[0024] The feeding area receives the chicken manure conveyed by the previous unit;

[0025] Wherein, the limiting scraper defines the thickness of the chicken manure entering the measuring area, and the weighing device measures the chicken manure in the measuring area.

[0026] Further, the weighing device includes:

[0027] Two supporting rollers are arranged below the conveying surface of the measuring conveyor belt and support the conveying surface of the measuring conveyor belt;

[0028] Wherein, a measuring area is formed between the two supporting rollers;

[0029] A pressure sensor is fixedly arranged on the bracket of the measuring conveyor belt and supports the supporting roller.

[0030] Further, the limiting scraper has an adjusting part, the adjusting part has a plurality of connecting holes arranged in the vertical direction, and the limiting scraper is fixedly connected to the measuring conveyor belt through the connecting holes.

[0031] Further, the limiting scraper is slidably connected to the measuring conveyor belt, and the measuring conveyor belt is fixedly provided with an adjusting part, and the adjusting part drives the limiting scraper to move in the vertical direction.

[0032] Further, the side baffle has a blocking surface and a guiding surface;

[0033] Wherein, when looking at the end face in the length direction of the side baffle, an included angle a is formed between the blocking surface and the guiding surface;

[0034] Wherein, the blocking surface is perpendicular to the conveying surface of the measuring conveyor belt, and the blocking surface is closely attached to the side wall of the measuring conveyor belt;

[0035] Wherein, the included angle a faces the outside of the measuring conveyor belt;

[0036] Wherein, the width of the discharge port of the primary feeding unit is parallel to the width of the measuring conveyor belt of the first monitoring unit;

[0037] Wherein, the width of the second port is parallel to the width of the measuring conveyor belt of the second monitoring unit;

[0038] Wherein, the width of the outlet of the primary feeding unit is L1, and the width of the second port is L2

[0039] Wherein, the distance between the two blocking surfaces in the first monitoring unit is L11, and the distance between the tops of the two guiding surfaces is L12;

[0040] Wherein, the distance between the two blocking surfaces in the second monitoring unit is L21, and the distance between the tops of the two guiding surfaces is L22;

[0041] Wherein, L11 < L1 < L12; L21 < L2 < L22.

[0042] Further, the first port has an adjusting baffle and an adjusting driving part; the adjusting driving part is fixedly arranged at the first port and drives the adjusting baffle to control the opening size of the first port.

[0043] Further, the return unit is provided with a section of screw conveyor;

[0044] The first port is arranged in the middle section of the screw conveyor, and the second port is arranged at the end of the screw conveyor.

[0045] Further, the return unit further includes a transition unit, the transition unit has a storage bin and a conveying part, the storage bin receives the chicken manure at the first port, and the conveying part conveys the chicken manure in the storage bin to the mixing unit.

[0046] The beneficial effects of the present utility model are reflected in that in the conveying system of the present application, a part of the dried chicken manure remaining after drying is mixed with fresh chicken manure. During the discharging process, feeding is carried out, and mixing is carried out during the feeding process, reducing the moisture content of the chicken manure to be dried and avoiding the clogging of the ventilation holes of the drying equipment by the chicken manure. And during the discharging process, the dried chicken manure is directly added to the fresh chicken manure for mixing, without the need for an additional conveying unit to add the dried chicken manure, greatly improving the conveying efficiency and drying efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] Figure 1 FIG. is a schematic structural diagram of a conveying system for drying chicken manure provided by the present utility model;

[0048] Figure 2 FIG. is a schematic structural diagram of another perspective of a conveying system for drying chicken manure provided by the present utility model;

[0049] Figure 3 FIG. is a schematic structural diagram of a measuring conveyor belt and a weighing device provided in Embodiment 2;

[0050] Figure 4 FIG. is a schematic structural diagram of a measuring conveyor belt and a weighing device provided in Embodiment 3;

[0051] Figure 5 FIG. is a schematic diagram of a pressure sensor provided by the present utility model;

[0052] Figure 6 For Figure 5 Enlarged view of part A;

[0053] Figure 7 FIG. is a schematic structural diagram of a measuring conveyor belt with another form of adjusting part provided by the present utility model;

[0054] Figure 8 For Figure 7 Front view of the form measuring conveyor belt;

[0055] Figure 9 FIG. is a front view of a return material unit provided by the present utility model;

[0056] Figure 10 FIG. is a three-dimensional structural diagram of a return material unit provided by the present utility model.

[0057] Reference signs: 1, primary feeding unit; 10, first monitoring unit; 2, secondary feeding unit; 3, return material unit; 30, second monitoring unit; 31, first port; 32, second port; 321, adjusting baffle; 322, adjusting driving part; 33, transition unit; 331, storage bin; 332, conveying part; 4, mixing unit; 5, measuring conveyor belt; 51, limiting scraper; 52, adjusting part; 521, connecting hole; 53, side baffle; 531, blocking surface; 532, guiding surface; 6, weighing device; 61, supporting roller; 62, pressure sensor; 7, control unit; 8, measuring area; 9, blanking area. Detailed implementation manners

[0058] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0059] Embodiment 1

[0060] Refer to Figure 1 - Figure 10 .

[0061] A conveying system for drying chicken manure, comprising:

[0062] A primary feeding unit 1 for conveying fresh chicken manure;

[0063] A return material unit 3, one end of which is located at the drying equipment for receiving the dried chicken manure after drying;

[0064] A mixing unit 4, which is connected to the primary feeding unit 1 and the return material unit 3 for mixing fresh chicken manure and dried chicken manure;

[0065] A secondary feeding unit 2, which is arranged at the discharge end of the mixing unit 4 to convey the mixed chicken manure to the drying equipment;

[0066] Wherein, the other end of the return material unit 3 has a first port 31 and a second port 32;

[0067] The first port 31 is connected to the mixing unit 4;

[0068] The second port 32 conveys the dried chicken manure after drying to the next process.

[0069] In the prior art, there are box-type drying devices. The drying device has multiple layers of drying chambers. The bottom plate of each drying chamber has fine air-permeable holes. Fresh chicken manure is laid flat in the drying chamber, and a blower blows air towards the inside of the drying chamber, so that the air flow passes through the air-permeable holes and through the inside of the chicken manure to achieve drying.

[0070] The moisture content of fresh chicken manure is about 75%. The gaps inside the chicken manure are filled with water, making it difficult for the air flow to pass through the inside of the chicken manure. And the state of fresh chicken manure is close to liquid and it is very easy to enter the air-permeable holes. Then, during the drying process of the fresh chicken manure in the air-permeable holes, the air-permeable holes will be blocked. As a result, it is difficult for the air flow to pass through the air-permeable holes and flow through the inside of the chicken manure, greatly reducing the drying efficiency. And the air-permeable holes are very small, resulting in the chicken manure blocked inside being difficult to clean. The chicken manure in the air-permeable holes not being cleaned in time will also affect the drying of the next batch of chicken manure.

[0071] For this, the present application provides a conveying system for drying chicken manure, which is particularly suitable for box-type drying devices. It includes a primary feeding unit 1 for conveying fresh chicken manure, a return material unit 3 for conveying the dried chicken manure dried by the drying device; the mixing unit 4 receives fresh chicken manure and dried chicken manure at the same time, fully mixes and stirs them to reduce the moisture content of the fresh chicken manure, and then conveys it to the secondary feeding unit 2, and the secondary feeding unit 2 conveys the mixed chicken manure to the drying device.

[0072] Among them, one end of the return material unit 3 is the feeding end for receiving the dried chicken manure. Specifically, the front end of the return material unit 3 is set as a conveyor belt. The material taking device of the drying device concentrates the chicken manure in the drying chamber on the conveyor belt of the return material unit 3. At this time, the drying device is in an empty state and can be fed (in this embodiment, the drying device mainly refers to the box-type drying device mentioned above). Then, the other end of the return material unit 3 has a first port 31 and a second port 32. The first port 31 is communicated with the mixing unit 4 and will be mixed with fresh chicken manure; the second port 32 conveys the dried chicken manure to the next process, that is, the dried chicken manure is packaged or other elements are added.

[0073] Generally, drying devices need to be equipped with a discharging system to transfer the dried materials. The present application utilizes the discharging system (return material unit) of the prior art and performs the mixing process during the discharging process, without the need to separately add a drying medium to mix the fresh chicken manure, saving the process;

[0074] The dried chicken manure and fresh chicken manure are mixed and stirred without the need to additionally add a drying medium, ensuring the content of the nutrient components of the chicken manure. Therefore, when mixing, there is no need to consider the problem of the nutrient content of the finished chicken manure. The mixing ratio of the dried chicken manure and fresh chicken manure is not limited by the content of the nutrient components, and the moisture content of the mixed chicken manure can be better controlled.

[0075] Through the conveying system in this embodiment, a part of the dried chicken manure after drying is mixed with fresh chicken manure. During the discharging process, feeding is carried out, and mixing is carried out during the feeding process, reducing the moisture content of the chicken manure to be dried and avoiding the blockage of the air holes of the drying equipment by the chicken manure. And during the discharging process, the dried chicken manure is directly added to the fresh chicken manure for mixing, without the need for an additional conveying unit to add the dried chicken manure, greatly improving the conveying efficiency and drying efficiency.

[0076] Embodiment 2

[0077] A conveying system for drying chicken manure in this embodiment further includes: a first monitoring unit 10 and a second monitoring unit 30;

[0078] The first monitoring unit 10 receives the dried chicken manure conveyed by the primary feeding unit 1 and conveys the dried chicken manure to the mixing unit;

[0079] The second monitoring unit 30 receives the fresh chicken manure conveyed by the first port 31 of the return material unit 3 and conveys the fresh chicken manure to the mixing unit;

[0080] The first monitoring unit 10 and the second monitoring unit 30 control the volume of the received chicken manure and weigh the chicken manure;

[0081] A calculation unit calculates the moisture content of the chicken manure according to the weight information measured by the first monitoring unit 10 and the second monitoring unit 30;

[0082] A control unit 7 controls the conveying speed of the primary feeding unit 1 and / or the return material unit 3 according to the moisture content.

[0083] Through the conveying system in the embodiment, only a rough reduction in the moisture content of the chicken manure is achieved. To ensure that the moisture content of the chicken manure after mixing is low enough, an excessive amount of dried chicken manure often needs to be added. However, the total amount of chicken manure that the drying equipment can dry at one time is constant. Originally, only fresh chicken manure needed to be dried, but the added dried chicken manure occupies a part of the drying position. Therefore, the more dried chicken manure is added, the slower the drying speed. Therefore, it is necessary to control the addition amount of dried chicken manure to ensure that the moisture content of the chicken manure after mixing is within a suitable range (reduce the moisture content to a certain extent to ensure the drying effect and avoid too high a proportion of dried chicken manure to ensure the drying efficiency of the whole batch of chicken manure).

[0084] Therefore, a first monitoring unit 10 and a second monitoring unit 30 are added to the conveying system in this embodiment. What we need to control is the moisture content of chicken manure. After drying, the moisture content of chicken manure cannot be exactly the same, generally with an error of about 5%. The moisture content error of fresh chicken manure is even greater. For example, the moisture content of the surface chicken manure transported may be about 65%, and the moisture content of the bottom chicken manure may be about 80%. Therefore, simply controlling the weight ratio of fresh chicken manure to dry chicken manure is not enough to determine the moisture content of the mixed chicken manure.

[0085] Therefore, the conveying system also requires a calculation unit to calculate the moisture content of chicken manure based on the weight information measured by the first monitoring unit 10 and the second monitoring unit 30, and then the control unit 7 controls the mixing ratio of dry chicken manure and wet chicken manure according to the moisture content of dry chicken manure and wet chicken manure.

[0086] Specifically, the first monitoring unit 10 receives the fresh chicken manure from the primary feeding unit 1 and then conveys the fresh chicken manure to the mixing unit. When the fresh chicken manure enters the first monitoring unit 10, it weighs the fresh chicken manure.

[0087] The second monitoring unit 30 receives the dry chicken manure conveyed by the first port 31 in the return unit 3 and then conveys the dry chicken manure to the mixing unit. When the dry chicken manure enters the first monitoring unit 10, it weighs the dry chicken manure.

[0088] At the same time, the first monitoring unit 10 and the second monitoring unit 30 need to control the volume of the received chicken manure to ensure that the volume of the weighed chicken manure remains unchanged. Then, the calculation unit calculates the density of the weighed chicken manure through the weight information, and reflects the moisture content through the density.

[0089] Specifically, the first monitoring unit 10 and the second monitoring unit 30 are set in the form of conveyor belts. A weighing device 6 is arranged below the conveyor belt for weighing. For volume control, the conveying speeds of the first monitoring unit 10 / second conveying unit and the primary feeding unit 1 / return unit 3 are kept unchanged. For example, if the moisture content of fresh chicken manure increases and the moisture content of dry chicken manure remains unchanged, mixing at the previous weight ratio of dry and wet chicken manure will definitely cause the moisture content of the mixed chicken manure to increase. Therefore, the addition amount of fresh chicken manure needs to be reduced. The conveying speed of the return unit 3 can remain unchanged, and the conveying speed of the primary feeding unit 1 is reduced. It can be imagined that when the conveying speed of the primary feeding unit 1 is reduced, if the speed of the first monitoring unit 10 is not reduced accordingly, the volume of the chicken manure received by the first monitoring unit 10 will decrease. For chicken manure with a changed volume, measuring its weight is meaningless. Therefore, after the conveying speed of the primary feeding unit 1 is reduced, the first monitoring unit 10 needs to be reduced synchronously, so as to ensure that the volume of the chicken manure in the first monitoring unit 10 does not change. The second monitoring unit 30 has the same principle as the first monitoring unit 10.

[0090] Example 3

[0091] Both the first monitoring unit 10 and the second monitoring unit 30 include:

[0092] A measuring conveyor belt 5 for conveying chicken manure to the mixing unit;

[0093] A weighing device 6 is arranged below the measuring conveyor belt 5;

[0094] Wherein, the measuring conveyor belt 5 has side baffles 53, and the side baffles 53 define the width of the chicken manure entering the measuring conveyor;

[0095] Wherein, the measuring conveyor belt 5 further has a limiting scraper 51, and the limiting scraper 51 spans both sides of the measuring conveyor belt 5, dividing the measuring conveyor belt 5 into a blanking area 9 and a measuring area 8;

[0096] The blanking area 9 receives the chicken manure conveyed by the previous unit;

[0097] Wherein, the limiting scraper 51 defines the thickness of the chicken manure entering the measuring area 8, and the weighing device 6 measures the chicken manure in the measuring area 8.

[0098] In Example 2, a specific method for controlling the volume of the measured chicken manure was proposed, that is, synchronously increasing or decreasing the conveying speeds of the first monitoring unit 10 / second conveying unit and the first feeding unit 1 / returning unit 3.

[0099] However, this method needs to be based on the premise that the conveying speeds of the first feeding unit 1 and the returning unit 3 are uniform. Here, uniform means that for each revolution of the motor, the volume of the chicken manure falling is the same. For the conveyor belt type of conveying, it means that the thickness of the chicken manure laid on the conveyor belt is the same. It is not difficult to control the thickness of the chicken manure above the conveyor belt, and only a scraper needs to be added. However, adding a scraper will inevitably cause chicken manure accumulation and reduce the conveying efficiency.

[0100] Therefore, in this embodiment, another method and structure for controlling the volume of the weighed chicken manure are provided. Both the first monitoring unit 10 and the second monitoring unit 30 have a measuring conveyor belt 5 and a weighing device 6.

[0101] Wherein, the measuring conveyor belt 5 has side baffles 53. When conveying granular chicken manure, side baffles 53 are often provided on the conveyor belt to prevent the chicken manure from spilling out from both sides, and at the same time, the maximum width of the chicken manure on the measuring conveyor belt 5 is defined, so that the chicken manure is within this width.

[0102] The measuring conveyor belt 5 is also provided with a limiting scraper 51. The limiting scraper 51 spans across both sides of the measuring conveyor belt 5, dividing the measuring conveyor belt 5 into two material dropping areas 9 and a measuring area 8. When the chicken manure enters the measuring conveyor belt 5, it falls into the material dropping area 9, and then enters the measuring area 8 through the limiting scraper 51. When passing through the limiting scraper 51, the limiting scraper 51 will level it, so that the thickness of the chicken manure entering the measuring area 8 is uniform. The length of the measuring area 8 will not change. By controlling the length, width and height of the measured chicken manure, the measured chicken manure always maintains the same volume, and even if the conveying speeds of the return unit 3 and the primary feeding unit 1 are uneven, it does not affect the volume of the measured chicken manure.

[0103] Furthermore, the weighing device 6 includes:

[0104] Two support rollers 61, which are arranged below the conveying surface of the measuring conveyor belt 5 and support the conveying surface of the measuring conveyor belt 5;

[0105] Wherein, the measuring area 8 is formed between the two support rollers 61;

[0106] A pressure sensor 62, which is fixedly arranged on the bracket of the measuring conveyor belt 5 and supports the support roller 61.

[0107] Specifically, the weighing unit is arranged below the conveying surface of the measuring conveyor belt 5 and does not weigh the overall weight of the entire measuring conveyor belt 5. This is because the measuring conveyor belt 5 includes its motor and other driving structures as well as the support structure, and the weight is necessarily very large. For a weighing device 6 that can weigh large-mass objects, it will inevitably lead to a reduction in accuracy under the same cost, and the change in the weight of the chicken manure is a tiny change relative to the overall mass of the measuring conveyor belt 5. Therefore, when the accuracy of the weighing device 6 is insufficient, it is very difficult to monitor the change in the weight of the chicken manure. In this embodiment, the weighing device 6 is arranged below the conveying surface to form a measuring area 8. The specific measuring device includes two support rollers 61. The measuring area 8 is formed between the two support rollers 61. The support rollers 61 are in contact with the belt of the measuring conveyor belt 5. When the measuring area 8 bears the chicken manure, the pressure on the support rollers 61 increases. A weighing sensor is arranged at the position where the support rollers 61 are connected to the measuring conveyor belt 5 to convert the pressure signal into an electrical signal to obtain a specific weight value.

[0108] In this embodiment, the weighing device 6 in the form of the support rollers 61 weighs the chicken manure locally on the measuring conveyor belt 5, and no longer weighs the entire measuring conveyor belt 5. The total weight of the weighed object is reduced, and thus the weighing device 6 can adopt a more sensitive pressure sensor 62 to obtain a more accurate weight value of the chicken manure.

[0109] Embodiment 4

[0110] Refer to Figure 5 andFigure 6 。

[0111] The limiting scraper 51 has an adjusting part 52, the adjusting part 52 has a plurality of connecting holes 521 arranged in the vertical direction, and the limiting scraper 51 is fixedly connected to the measuring conveyor belt 5 through the connecting holes 521.

[0112] When connected to the measuring conveyor belt 5 through the lowermost connecting hole 521, the distance between the bottom surface of the limiting scraper 51 and the conveying surface of the measuring conveyor belt 5 is the largest. The closer the connection is made to the measuring conveyor belt 5 through the connecting hole 521 away from the bottom of the limiting scraper 51.

[0113] The situations of each factory are different. The mixing unit 4 in some factories is larger or smaller in size, and the total amount of chicken manure to be processed is also different. When the discharging speed of the mixing unit 4 is relatively fast, chicken manure is likely to accumulate in the feeding area 9. This will first cause chicken manure to spill out. Secondly, the excessive accumulation of chicken manure will also exert pressure on the supporting roller 61, affecting the measurement of the moisture content.

[0114] In this embodiment, to address this, the limiting scraper 51 is provided with an adjusting part 52. When the discharging speed of the mixing unit 4 in the conveying system is relatively high, the distance between the limiting scraper 51 and the conveying surface of the measuring conveyor belt 5 is increased, enabling more chicken manure to enter the measuring area 8 and preventing chicken manure from accumulating. At the same time, when the discharging speed of the mixing unit 4 is relatively low, the distance between the limiting scraper 51 and the conveying surface of the measuring conveyor belt 5 can be reduced to prevent chicken manure from not being able to contact the limiting scraper 51.

[0115] Embodiment 5

[0116] Refer to Figure 7 and Figure 8 。

[0117] The limiting scraper 51 is slidably connected to the measuring conveyor belt 5. The measuring conveyor belt 5 is fixedly provided with an adjusting part 52, and the adjusting part 52 drives the limiting scraper 51 to move in the vertical direction, and the distance between the limiting scraper 51 and the conveying surface of the measuring conveyor belt 5.

[0118] During the process of the measuring conveyor belt 5 conveying chicken manure, the chicken manure entering the measuring conveyor belt 5 from the mixing unit 4 is always greater than the chicken manure leaving the measuring conveyor belt 5. This is because a part of the chicken manure that should have completely left the measuring conveyor belt 5 is blocked by the limiting scraper 51. Therefore, the chicken manure in the feeding area 9 accumulates the chicken manure flowing out of the mixing unit 4 and the chicken manure blocked by the limiting scraper 51. When the chicken manure in the feeding area accumulates over a long time, it will cause excessive accumulation of chicken manure in the feeding area 9. The most direct solution is to stop the primary feeding unit 1 and the return unit 3. The time required for stopping will not be very long, but it will definitely affect the overall conveying efficiency of the system.

[0119] In this embodiment, an actively controlled adjusting part 52 is provided. Specifically, the adjusting part 52 can be set as an electric push rod, a lead screw mechanism, etc. The limiting scraper 51 is used to control the volume of the measured chicken manure, so as to obtain the accurate moisture content of the chicken manure. However, the moisture content of the chicken manure cannot change significantly in a short period of time. Therefore, after the system obtains the moisture content of the chicken manure, the adjusting part 52 drives the limiting scraper 51 to move upward, so that the limiting scraper 51 no longer blocks the chicken manure transportation. At this time, the system no longer analyzes the moisture content of the chicken manure by weight. The measuring conveyor belt 5 conveys all the chicken manure in the blanking area 9 to the secondary feeding unit 2 during this period, and then the limiting scraper 51 descends to the preset position every once in a while.

[0120] Embodiment 6

[0121] Refer to Figure 8 。

[0122] The side baffle 53 has a blocking surface 531 and a guiding surface 532;

[0123] Wherein, facing the end surface in the length direction of the side baffle 53, an included angle a is formed between the blocking surface 531 and the guiding surface 532;

[0124] Wherein, the blocking surface 531 is perpendicular to the conveying surface of the measuring conveyor belt 5, and the blocking surface 531 is closely attached to the side wall of the measuring conveyor belt;

[0125] Wherein, the included angle a faces the outside of the measuring conveyor belt 5;

[0126] Wherein, the width of the discharge port of the primary feeding unit 1 is parallel to the width of the measuring conveyor belt 5 of the first monitoring unit 10;

[0127] Wherein, the width of the second port 32 is parallel to the width of the measuring conveyor belt 5 of the second monitoring unit 30;

[0128] Wherein, the width of the outlet of the primary feeding unit 1 is L1, and the width of the second port 32 is L2

[0129] Wherein, the distance between the two blocking surfaces 531 in the first monitoring unit 10 is L11, and the distance between the tops of the two guiding surfaces 532 is L12;

[0130] Wherein, the distance between the two blocking surfaces 531 in the second monitoring unit 30 is L21, and the distance between the tops of the two guiding surfaces 532 is L22;

[0131] Wherein, L11 < L1 < L12; L21 < L2 < L22.

[0132] The chicken manure is in granular form, and there is a problem of easy dropping in the conveyor belt. Therefore, side baffles 53 are required on both sides when the conveyor belt conveys granular chicken manure. The discharge port of the previous device of the conveyor belt only needs to be smaller than the spacing of the side baffles 53 to ensure that the chicken manure will not spill, but this will also result in less chicken manure on both sides of the conveyor belt. In this case, during the application, the limit scraper 51 will not be able to hang on the chicken manure on both sides, making the thickness of the measured chicken manure inconsistent and the volume difficult to control; or when the mixing unit 4 conveys a large amount of chicken manure, the side baffles 53 will push a part of the large amount of excess chicken manure to both sides for filling, which will cause the chicken manure to accumulate in the blanking area 9 quickly, and the program needs to be frequently switched to handle the accumulated chicken manure.

[0133] For this, in this embodiment, the side baffle 53 is divided into upper and lower sections. The lower section is the blocking surface 531, which has no difference from the general side baffle 53, while the upper section includes a guiding surface 532. The guiding surface 532 forms an angle a with the blocking surface 531, and the angle a faces the outside of the measuring conveyor belt 5 (that is, does not face the belt of the measuring conveyor belt 5); when viewed from the end face in the length direction of the side baffle 53, the guiding surfaces 532 on both sides form an inverted trapezoid.

[0134] Taking the first monitoring unit 10 and the primary feeding unit 1 as an example, the primary feeding unit 1 will continuously feed materials towards the first monitoring unit 10. The width of the chicken manure falling at one time is equal to the width of the discharge port of the primary feeding unit 1, that is, L1. L11 < L1 < L12. Before the chicken manure completely falls, both ends will first contact the guiding surface 532, and the guiding surface 532 will gather the chicken manure within the spacing of the blocking surface 531, so that the chicken manure can cover the edge of the conveying surface.

[0135] The relationship between the second port 32 of the return unit 3 and the second monitoring unit 30 is the same.

[0136] Embodiment 7

[0137] Refer to Figure 9 and Figure 10 。

[0138] The return unit 3 is provided with a section of screw conveyor.

[0139] The first port is arranged in the middle section of the screw conveyor, and the second port is arranged at the end of the screw conveyor.

[0140] The screw conveyor is a kind of machinery that uses an electric motor to drive the screw to rotate and push the chicken manure to achieve the purpose of conveying. It can convey horizontally, obliquely or vertically, and has the advantages of simple structure, small cross-sectional area, good sealing performance, convenient operation, easy maintenance, and convenient for enclosed transportation. The working principle of the screw conveyor is that the rotating screw blades push the chicken manure for conveying by the screw conveyor. Therefore, the discharge port of the screw conveyor is often set at the end, and the chicken manure is all pushed out by the screw blades. In this embodiment, the first port is set in the middle section of the screw conveyor, and the second port is set at the end of the screw conveyor. Most of the chicken manure is pushed out by the screw blades from the second port, and a small part flows out and enters the mixing unit 4 due to gravity when passing through the first port.

[0141] Example 8

[0142] Refer to Figure 9 and Figure 10 .

[0143] The first port is provided with an adjusting baffle 321 and a driving adjustment part 52; the adjusting driving part 322 is fixedly arranged at the first port to drive the adjusting baffle 321 to control the opening size of the first port.

[0144] The control unit 7 controls the driving adjustment part 52 to control the opening size of the discharge port. When the first port is increased, the proportion of dry chicken manure in the mixing unit 4 is increased. When the first port is decreased, the proportion of dry chicken manure in the mixing unit 4 is decreased. And the adjusting driving part 322 can close the first port through the adjusting baffle 321. After drying the last batch of chicken manure, no dry chicken manure is conveyed to the mixing unit 4.

[0145] In this embodiment, the feeding speed of the return unit 3 towards the mixing unit 4 can be controlled by controlling the adjusting baffle 321, and there is no need to control the discharge speed by controlling the motor of the return unit 3 anymore.

[0146] In this embodiment, the feeding speed of the return unit 3 towards the mixing unit 4 can be controlled by controlling the adjusting baffle 321, and there is no need to control the discharge speed by controlling the motor of the return unit 3 anymore.

[0147] Example 9

[0148] Refer to Figure 1 and Figure 2 .

[0149] The return unit 3 further includes a transition unit 33. The transition unit 33 has a storage bin 331 and a conveying part 332. The storage bin 331 receives the chicken manure from the first port, and the conveying part 332 conveys the chicken manure in the storage bin 331 to the mixing unit 4.

[0150] In this embodiment, a transition unit 33 is provided. The return unit 3 first conveys the chicken manure into the storage bin 331 of the transition unit 33, and then the conveying part 332 in the storage bin 331 conveys the chicken manure to the mixing unit 4.

[0151] When directly conveying chicken manure towards the mixing unit 4 through the intermediate conveying unit, it is difficult to ensure a uniform conveying speed. There may be a situation where the chicken manure is squeezed in the spiral blades of the spiral conveyor of the return unit 3 and does not fall from the first port at a certain moment, or the amount of falling is different.

[0152] In this embodiment, the return unit 3 can first fill a part of the storage bin 331 with dry chicken manure, and then the conveying part 332 continuously conveys chicken manure quantitatively. The storage bin 331 can supplement the chicken manure lacking at the first port and can also receive the excess chicken manure at the first port.

[0153] Specifically, the conveying part 332 is set as a spiral conveyor, which is arranged at the bottom of the storage bin 331, and a section of the spiral blades of the spiral conveyor is always buried at the bottom of the storage bin 331.

[0154] It can be understood that when adjusting the ratio of dry and wet chicken manure, the control unit 7 needs to control the rotation speed of the motor of the conveying part 332 while regulating the adjusting baffle 321.

[0155] It can be understood that when adjusting the ratio of dry and wet chicken manure, the control unit 7 needs to control the rotation speed of the motor of the conveying part 332 while regulating the adjusting baffle 321.

[0156] In the description of the embodiments of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "center", "top", "bottom", "top part", "bottom part", "inner", "outer", "inner side", "outer side", etc. is the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present utility model. Among them, the "inner side" refers to the internal or enclosed area or space. The "periphery" refers to the area around a specific component or a specific area.

[0157] In the description of the embodiments of the present utility model, the terms "first", "second", "third", "fourth" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first", "second", "third", "fourth" may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is two or more.

[0158] In the description of the embodiments of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", "linkage", and "assembly" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a direct connection or an indirect connection through an intermediate medium, and it may be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0159] In the description of the embodiments of the present utility model, specific features, structures, materials, or characteristics may be combined in a suitable manner in any one or more embodiments or examples.

[0160] In the description of the embodiments of the present utility model, it should be understood that "-" and "~" represent two ranges with the same numerical values, and this range includes the endpoints. For example: "A - B" represents a range greater than or equal to A and less than or equal to B. "A ~ B" represents a range greater than or equal to A and less than or equal to B.

[0161] In the description of the embodiments of the present utility model, the term "and / or" herein is merely a description of the relationship between associated objects, indicating that three relationships may exist. For example, A and / or B may represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " herein generally represents an "or" relationship between the associated objects before and after.

[0162] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and deformations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A conveying system for drying chicken manure, characterized in that: include: The first-level feeding unit is used to convey fresh chicken manure; A return unit, one end of which is located at the drying equipment and is used to receive the dried chicken manure; A mixing unit, connected to the primary feeding unit and the returning unit, for mixing fresh chicken manure and dry chicken manure; A secondary feeding unit is arranged at the discharge end of the mixing unit to transport the mixed chicken manure to the drying equipment; Wherein, the other end of the material return unit has a first port and a second port; The first port is in communication with the mixing unit; The second port transports the dried chicken manure to the next process.

2. A conveying system for drying chicken manure according to claim 1, characterized in that: include: a first monitoring unit and a second monitoring unit; The first monitoring unit receives the dry chicken manure delivered by the first-level feeding unit, and delivers the dry chicken manure to the mixing unit; The second monitoring unit receives the fresh chicken manure delivered by the first port of the return unit, and delivers the fresh chicken manure to the mixing unit; The first monitoring unit and the second monitoring unit control the volume of the received chicken manure and weigh the chicken manure; A calculation unit, which calculates the moisture content of the chicken manure according to the weight information measured by the first monitoring unit and the second monitoring unit; A control unit controls the conveying speed of the primary feeding unit and / or the return unit according to the moisture content.

3. A conveying system for drying chicken manure according to claim 2, characterized in that: The first monitoring unit and the second monitoring unit both include: A measuring conveyor belt is used to convey the chicken manure to the mixing unit; A weighing device is arranged below the measuring conveyor belt; Wherein, the measuring conveyor belt has a side baffle, and the side baffle limits the width of chicken manure entering the measuring conveyor; Wherein, the measuring conveyor belt further has a limiting scraper, and the limiting scraper spans across both sides of the measuring conveyor belt to divide the measuring conveyor belt into a material dropping area and a measuring area; The dropping area receives the chicken manure transported by the previous unit; The limiting scraper limits the thickness of the chicken manure entering the measuring area, and the weighing device measures the chicken manure in the measuring area.

4. A conveying system for drying chicken manure according to claim 3, characterized in that: The weighing device comprises: Two support rollers, which are arranged below the conveying surface of the measuring conveyor belt and support the conveying surface of the measuring conveyor belt; Wherein, the measuring area is formed between the two support rollers; The pressure sensor is fixedly arranged on the bracket of the measuring conveyor belt and supports the supporting roller.

5. The conveying system for drying chicken manure according to claim 3, characterized in that: The limiting scraper has an adjusting portion, and the adjusting portion has a plurality of connecting holes arranged in a vertical direction. The limiting scraper is fixedly connected to the measuring conveyor belt through the connecting holes.

6. The conveying system for drying chicken manure according to claim 3, characterized in that: The limiting scraper is slidably connected to the measuring conveyor belt, and the measuring conveyor belt is fixedly provided with an adjusting portion, and the adjusting portion drives the limiting scraper to move in a vertical direction.

7. A conveying system for drying chicken manure according to claim 5 or 6, characterized in that: The side baffle has a blocking surface and a guiding surface; Wherein, when viewed from the end face of the side baffle in the length direction, the blocking surface and the guiding surface form an angle a; Wherein, the blocking surface is perpendicular to the conveying surface of the measuring conveyor belt, and the blocking surface is in close contact with the side wall of the measuring conveyor belt; Wherein, the angle a is toward the outside of the measuring conveyor belt; Wherein, the width of the discharge port of the first-level feeding unit is parallel to the width of the measuring conveyor belt of the first monitoring unit; Wherein, the width of the second port is parallel to the width of the measuring conveyor belt of the second monitoring unit; The width of the first-stage feed unit outlet is L1, and the width of the second port is L2. The distance between the blocking surfaces on both sides of the first monitoring unit is L11, and the distance between the tops of the guiding surfaces on both sides is L12; The distance between the blocking surfaces on both sides of the second monitoring unit is L21, and the distance between the tops of the guiding surfaces on both sides is L22; Among them, L11 <L1<L12;L21<L2<L22。 8. The conveying system for drying chicken manure according to claim 7, characterized in that: The first port has an adjusting baffle and an adjusting driving unit; the adjusting driving unit is fixedly arranged on the first port to drive the adjusting baffle to control the opening size of the first port.

9. A conveying system for drying chicken manure according to claim 8, characterized in that: The material return unit is provided with a section of screw conveyor; The first port is arranged at the middle section of the screw conveyor, and the second port is arranged at the end of the screw conveyor.

10. A conveying system for drying chicken manure according to claim 9, characterized in that: The return material unit further includes a transition unit, which includes a storage bin and a conveying unit. The storage bin receives the chicken manure from the first port, and the conveying unit conveys the chicken manure in the storage bin to the mixing unit.

Images