Equipment for drying chicken manure through hot air and chicken manure treatment system thereof

Abstract

The invention relates to the technical field of livestock breeding manure treatment, and discloses a device for drying chicken manure through hot air, which comprises a drying box and a heating box, a plurality of layers of transportation mechanisms are arranged in the drying box, the device is characterized in that the heating box is communicated with one side of the drying box, and an air return box is communicated with the opposite position of the other side of the drying box; and hot air of the heating box is exhausted after passing through the drying box, the air return box and the drying box. The heat utilization rate is high, the drying uniformity is good, and the production cost is low.

Description

Technical Field

[0001] The invention relates to the technical field of livestock excrement treatment, and in particular to equipment for hot-air drying chicken excrement and a chicken excrement treatment system thereof. Background Art

[0002] In the field of agricultural waste treatment, the equipment for hot air drying chicken manure quickly removes moisture through high-temperature airflow, and combines intelligent control with environmental protection design to solve the pain points of low efficiency and high pollution in traditional chicken manure treatment, and realizes the resource utilization, harmlessness and high-value utilization of waste. Its mature technology and easy operation make it one of the core equipment of large-scale farms and organic fertilizer processing companies. It is based on the needs of efficient dehydration, sterilization and resource recycling of wet chicken manure, combined with thermodynamics, heat and mass transfer principles and mechanical engineering. The equipment for hot air drying chicken manure is used to solve the limitations of traditional drying: natural drying is inefficient, time-consuming, easily affected by weather, and cannot kill pathogens and insect eggs, making it difficult to meet the needs of large-scale breeding.

[0003] The initial moisture content of fresh chicken manure is usually between 75% and 80%. For safe storage and transportation, it needs to be reduced to between 15% and 20% to prevent mildew and reduce weight. For organic fertilizer production, energy utilization, or direct return to the field, a moisture content of 10% to 15% is usually required to facilitate granulation and preservation.

[0004] Chinese patent document CN221139758U discloses a manure plate guide mechanism for manure, comprising two spaced mounting plates, characterized in that a guide assembly is installed on the opposite side of the two mounting plates, the guide assembly comprises a fixed part arranged vertically and fixed on the mounting plate, a moving part arranged obliquely and sliding in the horizontal direction on the mounting plate below the fixed part, the moving part and the mounting plate are elastically connected, and the moving part and the fixed part cooperate to adjust the moving track of the manure plate. This prior art can simultaneously air-dry the upper chicken manure and the lower chicken manure on one drying line.

[0005] Chinese patent document CN206905488U discloses a chicken manure hot air drying device, including a wind collecting chamber sealed and connected to the rear of a chicken house, the rear of the chicken house is provided with a plurality of first exhaust windows connected to the wind collecting chamber, a drying box is provided in the wind collecting chamber, one end of the drying box extends out of the wind collecting chamber, the part of the drying box placed in the wind collecting chamber is open, multiple layers of conveyor belts are vertically spaced on the drying box, the multiple layers of conveyor belts are staggered so that the lower conveyor belt can catch the feces dropped from the upper conveyor belt, an exhaust fan is installed on the end of the drying box placed outside the wind collecting chamber, a chicken manure spreading device is provided on the conveying head end of the first conveyor belt, and a conveying device for outputting chicken manure is connected to the conveying end of the last conveyor belt.

[0006] At present, in order to simultaneously air-dry a large amount of chicken manure to increase production, it is necessary to set multiple sets of manure plate guide mechanisms in the hot air drying equipment for chicken manure. In the prior art, the drying box of the hot air drying equipment for chicken manure has a poor drying effect on the multi-layer conveyor belt, because the heat is easily discharged directly with the wind in the drying equipment, and the chicken manure close to the hot air outlet is easy to dry, while the chicken manure far away from the air drying outlet is not easy to dry, and the drying uniformity is poor. Therefore, it is necessary to repeat the air drying or increase the air drying temperature of the drying box, thereby increasing the cost. Summary of the invention

[0007] In order to solve the above technical problems, the present invention provides a hot air drying chicken manure device capable of simultaneously drying multiple layers of chicken manure, comprising a drying box and a heating box, wherein a multi-layer transportation mechanism is arranged in the drying box, and characterized in that the heating box is connected and arranged on one side of the drying box, and a return air box is connected and arranged at a relative position on the other side of the drying box, and the hot air from the heating box is discharged after passing through the drying box, the return air box and the drying box.

[0008] Preferably, the hot air outlets of the heating box and the return air box correspond to different levels of transportation mechanisms respectively, and the hot air mainly flows in a U-shape and can penetrate the transportation mechanism for cross drying.

[0009] In order to fully absorb the heat, the upper part of the heating box is an air inlet and an air outlet, the lower part of the heating box is a hot air outlet, the lower part of the return air box is a warm air inlet, and the upper part of the return air box is a warm air outlet. The hot air outlet and the warm air inlet are arranged opposite to each other on both sides of the drying box, and the warm air outlet and the air outlet are arranged opposite to each other on both sides of the drying box. The hot air dries the chicken manure from bottom to top and crosses around.

[0010] In order to reuse heat and further reduce the water content of chicken manure, a plurality of heat exchange tubes connected to the exhaust port are provided at the air inlet of the heating box, and the gaps between the heat exchange tubes allow cold air from the air inlet to enter the heating box, and a heater is provided in the middle of the heating box.

[0011] In order to make the hot air and the chicken manure move crosswise to improve the chicken manure drying effect, the feed inlet of the drying box is located at the top and the discharge port is located at the bottom.

[0012] In order to improve the uniformity of drying chicken manure on the transport mechanism, multiple groups of heating boxes and return air boxes are arranged on both sides of the drying box. The multiple heating boxes are interconnected through hot air channels, and the multiple return air boxes are also interconnected through hot air channels. The hot air channels are connected to the inside of the drying box, and hot air enters the drying box horizontally at the same time to heat the chicken manure on the transport mechanism.

[0013] Preferably, a 4-layer transport mechanism is arranged in the drying box, the hot air outlet and the warm air inlet are located between the first and second layers, the warm air outlet is located between the third and fourth layers, and the exhaust port is located above the fourth layer.

[0014] Preferably, a 4-layer transport mechanism is arranged in the drying box, the hot air outlet is located between the first and second layers, the warm air inlet is located below the first layer and between the second and third layers, the warm air outlet is located between the third and fourth layers, and the exhaust port is located above the fourth layer.

[0015] A chicken manure processing system comprises a device for hot air drying chicken manure, a spreading machine, a silo, a sorting machine, a combustion furnace and a weighing and baling machine, wherein the spreading machine is located at a feeding port at the top of the device for hot air drying chicken manure, a conveyor belt 1 is arranged at a bottom discharge port of the device for hot air drying chicken manure, the conveyor belt 1 transports the dried chicken manure to the silo, the silo is transported to the sorting machine through a conveyor belt 2, and the sorting port of the sorting machine is connected to the weighing and baling machine.

[0016] The present invention has the following beneficial effects: 1. The present invention changes the direction of the hot air by changing the position of the heating box and adding a return air box, and utilizes the longitudinal penetration of the hot air in each transport mechanism and the bottom-up flow to increase the heat exchange efficiency with the chicken manure, and each hot air will repeatedly blow through the chicken manure on the multi-layer transport mechanism, that is, the chicken manure on the lower transport mechanism is first heated, and then the chicken manure on the upper transport mechanism is heated, and the chicken manure moves on the transport mechanism from top to bottom, so each batch of chicken manure will first receive the heat of the tail section of the hot air, then the heat of the middle section of the hot air, and finally the heat of the front end, and continuously receive each hot air from the heating box, which perfectly solves the problems of low heat utilization and poor drying uniformity.

[0017] 2. The air inlet and the air outlet of the heating box of the present invention are cross-arranged to recover waste heat. The final heat of the hot air can heat the cold air at the air inlet through the heat exchange tube, heating the cold air in advance. Combined with the present invention to change the direction of the hot air, 40% of fuel can be saved and production costs can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of embodiment 1 of the present invention; Figure 2 for Figure 1 A top view of Figure 3 for Figure 2 AA section view; Figure 4 is a schematic diagram of a heating box; Figure 5 This is a schematic diagram of the interior of the heating box; Figure 6 for Figure 4 Side view of Figure 7 for Figure 1 Bottom schematic diagram of ; Figure 8 is a schematic diagram of embodiment 2 of the present invention; Fig. 9 is a schematic diagram of embodiment 3 of the present invention; Fig.10 for Fig. 9 Side view of. DETAILED DESCRIPTION

[0019] The following is further described in detail through specific implementation methods: The figure marks in the drawings of the specification include: drying box 1, heating box 2, return air box 3, air inlet 4, exhaust port 5, hot air outlet 6, warm air inlet 7, warm air outlet 8, heat exchange tube 9, heating tube 10, feed port 11, discharge port 12, hot air channel 13, first-floor transport mechanism 14, second-floor transport mechanism 15, third-floor transport mechanism 16, fourth-floor transport mechanism 17, equipment for hot air drying chicken manure 18, spreading machine 19, silo 20, sorting machine 21, combustion furnace 22, conveyor belt one 23, conveyor belt two 24, conveyor belt three 25, weighing and baling machine 26, fan 27, dehumidifying fan 28. Example 1

[0020] like Figure 1-7 As shown, a device 18 for hot air drying chicken manure includes a drying box 1 and three heating boxes 2. A four-layer transportation mechanism is arranged in the drying box 1. The heating boxes 2 are arranged at intervals and connected on one side of the long side of the drying box 1. Three return air boxes 3 are arranged at relative positions on the other side of the long side of the drying box 1. The hot air from the heating box 2 passes through the drying box 1, the return air box 3 and the drying box 1 and is discharged. The heating box 2, the return air box 3 and the drying box 1 at the corresponding position are a set, which can be lengthened or shortened according to the length of the transportation mechanism.

[0021] The hot air outlets 6 of the heating box 2 and the return air box 3 correspond to different levels of transportation mechanisms respectively. The hot air mainly flows in a U-shape and can penetrate the transportation mechanism for cross drying.

[0022] The upper part of the heating box 2 is an air inlet 4 and an air outlet 5, the lower part of the heating box 2 is a hot air outlet 6, a fan 27 is arranged at the hot air outlet 6, and the fan 27 draws hot air into the drying box 1, the lower part of the return air box 3 is a warm air inlet 7, the upper part of the return air box 3 is a warm air outlet 8, the hot air outlet 6 and the warm air inlet 7 are arranged opposite to each other on both sides of the drying box 1, and the warm air outlet 8 and the air outlet 5 are arranged opposite to each other on both sides of the drying box 1, and the hot air dries the chicken manure from bottom to top.

[0023] A plurality of heat exchange tubes 9 connected to the exhaust port 5 are provided at the air inlet 4 of the heating box 2. The heat exchange tubes 9 are connected to the dehumidification fan 28. The gaps between the outer walls of the heat exchange tubes 9 allow the cold air from the air inlet 4 to enter the heating box 2. A plurality of heating tubes 10 are provided in the middle part of the heating box 2. The cold air exchanges heat through the gaps between the heating tubes 10.

[0024] The feed inlet 11 of the drying box 1 is located at the top, and the discharge port 12 is located at the bottom.

[0025] The three heating boxes 2 are interconnected through the hot air channel 13, and the multiple return air boxes 3 are also interconnected through the hot air channel 13. The hot air channel 13 is connected to the interior of the drying box 1 through a mesh structure. The fan 27 draws hot air into the hot air channel 13 and then enters the interior of the drying box 1 through the mesh structure. The hot air enters the drying box 1 horizontally and simultaneously to heat the chicken manure on the transport mechanism.

[0026] The drying box 1 is provided with 4 layers of transport mechanisms, the hot air outlet 6 and the warm air inlet 7 are located between the first and second layer transport mechanisms 15 , the warm air outlet 8 is located at the third layer transport mechanism 16 , and the exhaust port 5 is located at the fourth layer transport mechanism 17 .

[0027] The transport mechanism adopts an upper and lower two-layer flap structure, specifically adopts a structure in a manure plate guide mechanism for manure and sewage disclosed in the existing patent document CN221139758U, which will not be described in detail here. Example 2

[0028] like Figure 8 As shown, the difference between this embodiment and embodiment 1 is that 4 layers of transport mechanisms are arranged in the drying box 1, the hot air outlet 6 is located between the first and second layer transport mechanisms 15, the warm air inlet 7 is located below the first layer transport mechanism 14 and between the second and third layer transport mechanisms 16, the warm air outlet 8 is located between the third and fourth layer transport mechanisms 17, and the exhaust port 5 is located at the fourth layer transport mechanism 17, and the hot air dries each layer of chicken manure from bottom to top and cross-surrounds. Example 3

[0029] like Figure 9-10As shown, a chicken manure processing system comprises the hot air drying chicken manure device 18, a distributor 19, a silo 20, a sorter 21 and a combustion furnace 22 in Example 1, wherein the distributor 19 is located at the feed inlet 11 at the top of the hot air drying chicken manure device 18, and a conveyor belt 23 is arranged at the bottom discharge port 12 of the hot air drying chicken manure device 18, wherein the conveyor belt 23 transports the dried chicken manure to the silo 20, and the silo 20 transports the dried chicken manure to the sorter 21 via a conveyor belt 24. The sorting port of the sorting machine 21 is connected to the weighing and baling machine 26. The sorting machine 21 can sort out powdered chicken feathers, powdered chicken manure and granular chicken manure. The powdered chicken manure heats the fresh chicken manure to reduce the viscosity and humidity to prevent sticking to the transportation mechanism. The sorting machine 21 is provided with a combustion furnace 22 vacuum cleaner, and the combustion furnace 22 vacuum cleaner is connected to the combustion furnace 22 for dust removal. The combustion furnace 22 provides hot water to the heating tube 10 through a pipeline (the pipeline is not shown in the figure), and the combustion furnace 22 continuously provides fuel through the conveyor belt three 25.

[0030] The above is only an embodiment of the present invention. The common sense such as the known specific structure and characteristics in the scheme is not described in detail here. The ordinary technicians in the relevant field know all the common technical knowledge in the technical field of the invention before the application date or priority date, can obtain all the existing technologies in the field, and have the ability to apply the conventional experimental means before that date. The ordinary technicians in the relevant field can improve and implement this scheme in combination with their own abilities under the enlightenment given by this application. Some typical known structures or known methods should not become obstacles for ordinary technicians in the relevant field to implement this application. It should be pointed out that for those skilled in the art, without departing from the structure of the present invention, several deformations and improvements can be made, which should also be regarded as the protection scope of the present invention, which will not affect the effect of the implementation of the present invention and the practicality of the patent. The protection scope required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A hot air drying equipment for chicken manure, comprising a drying box and a heating box, wherein a multi-layer transport mechanism is arranged in the drying box, characterized in that: The heating box is connected to one side of the drying box, and a return air box is connected to the other side of the drying box. The hot air from the heating box is discharged after passing through the drying box, the return air box and the drying box.

2. The equipment for hot air drying chicken manure according to claim 1, characterized in that: The hot air outlets of the heating box and the return air box correspond to transport mechanisms at different levels respectively.

3. The equipment for hot air drying chicken manure according to claim 2, characterized in that: The upper part of the heating box is an air inlet and an air exhaust port, the lower part of the heating box is a hot air outlet, the lower part of the return air box is a warm air inlet, the upper part of the return air box is a warm air outlet, the hot air outlet and the warm air inlet are arranged opposite to each other on both sides of the drying box, and the warm air outlet and the air exhaust port are arranged opposite to each other on both sides of the drying box.

4. The equipment for hot air drying chicken manure according to claim 3 is characterized in that: A plurality of heat exchange tubes connected to the exhaust port are arranged at the air inlet of the heating box, and the gaps between the heat exchange tubes allow cold air from the air inlet to enter the heating box. A heater is arranged in the middle of the heating box.

5. The equipment for hot air drying chicken manure according to claim 4, characterized in that: The feed inlet of the drying box is located at the top, and the discharge outlet is located at the bottom.

6. The equipment for hot air drying chicken manure according to claim 5, characterized in that: Multiple groups of heating boxes and return air boxes are arranged on both sides of the drying box. The multiple heating boxes are interconnected through hot air channels, and the multiple return air boxes are also interconnected through hot air channels. The hot air channels are connected to the inside of the drying box.

7. The equipment for hot air drying chicken manure according to claim 6, characterized in that: A 4-layer transport mechanism is arranged in the drying box, the hot air outlet and the warm air inlet are located between the first and second layers, the warm air outlet is located on the third layer, and the exhaust port is located on the fourth layer.

8. The equipment for hot air drying chicken manure according to claim 6, characterized in that: A 4-layer transport mechanism is arranged in the drying box, the hot air outlet is located between the first and second layers, the warm air inlet is located below the first layer and between the second and third layers, the warm air outlet is located on the third layer, and the exhaust port is located on the fourth layer.

9. A chicken manure treatment system, characterized in that: The invention comprises equipment for drying chicken manure with hot air, a spreading machine, a silo, a sorting machine, a combustion furnace and a weighing and baling machine. The spreading machine is located at a feeding port on the top of the equipment for drying chicken manure with hot air, a conveyor belt 1 is arranged at a feeding port at the bottom of the equipment for drying chicken manure with hot air, the conveyor belt 1 transports the dried chicken manure to the silo, the silo is transported to the sorting machine through a conveyor belt 2, and the sorting port of the sorting machine is connected to the weighing and baling machine.

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