Deep processing device using pig manure as alternative fuel

Abstract

The utility model relates to the technical field of pig manure deep processing, in particular to a deep processing device using pig manure as alternative fuel, which comprises a pig manure solid-liquid separation mechanism, the pig manure solid-liquid separation mechanism is connected with a pig manure stacking mechanism through a conveying device, the pig manure stacking mechanism is connected with a pig manure crushing mechanism through a conveying device, and the pig manure crushing mechanism is connected with a pig manure conveying device. And the pig manure crushing mechanism is connected with a pig manure fuel distribution mechanism through feeding equipment. Waste pig manure of a live pig breeding enterprise is utilized to generate heat value for use, the value of the pig manure is created, environmental pollution is reduced, water obtained after separation of the waste pig manure is filtered and reused, water resources are saved, cement enterprises utilize the pig manure subjected to filter pressing for calcination, coal consumption is reduced, energy is saved, environmental pollution is reduced, and the economic benefit is increased. And moreover, conditions are created for deep cooperation of industrial and agricultural development, more values are created for agricultural development and farmer income creation, an optimal cooperation point is found for comprehensive utilization of wastes, and mutual complementation is realized.

Description

Technical Field

[0001] This utility model relates to the field of pig manure deep processing technology, and in particular to a deep processing device that utilizes pig manure as an alternative fuel. Background Technology

[0002] With strong support and development of animal husbandry, animal husbandry is a fundamental guarantee for people's livelihood. Pig farming occupies an important position in animal husbandry, and its scale has long been formed into large-scale groups in China. The treatment of pig excrement has become a key link in the pig farming industry. In particular, large-scale group enterprises have attracted more attention due to their scale and the large amount of excrement.

[0003] Pig excrement, due to its high water content, has limited utilization potential and is often improperly treated, posing a significant challenge for livestock farms. Currently, its main applications are as organic fertilizer, biofuel, biogas feedstock, and feed ingredients. However, due to its difficulty in processing and long processing cycles, its conversion rate is low. Most of it is currently stored or discharged into abandoned ditches, causing odors, mosquito and fly infestations, and severe environmental pollution, placing a significant burden on environmental protection.

[0004] A pig manure fuel preparation system disclosed in Chinese patent document CN204981802U includes a solid-liquid separation system, a biogas fermentation system, a solid pig manure raw material processing system, a molding system, and a boiler system. The solid-liquid separation system includes a manure storage tank and a solid-liquid separation device. The biogas fermentation system includes a biogas fermentation tank and a biogas conveying system. The solid pig manure raw material processing system includes a pig manure drying device, a pig manure crushing device connected to the pig manure drying device, and a pig manure silo connected to the pig manure crushing device. The pig manure drying device is connected to the solid-liquid separation device. The molding system includes an additive silo, a mixing device, a molding machine, and a cooling tower. The boiler system includes a biomass boiler and a high-temperature steam pipe. One end of the high-temperature steam pipe is connected to the biomass boiler, and the other end is connected to the pig manure drying device. This utility model has the advantages of reasonable structural design, integrating functions such as biogas fermentation, briquette fuel preparation, and boiler heating, and high utilization rate of pig manure. However, the pig manure fuel preparation system is an integrated device suitable for small-scale pig manure fuel preparation. It has low efficiency for fuel preparation of large amounts of pig manure, and the energy consumption of high-temperature steam and other treatment methods is relatively large.

[0005] To address the shortcomings of the existing technologies, providing a deep processing device for the reuse of pig manure that can replace fuel is a problem worthy of research. Utility Model Content

[0006] The purpose of this invention is to overcome the shortcomings of the prior art and provide a deep processing device that uses pig manure as an alternative fuel, effectively solving the deficiencies of the prior art.

[0007] The purpose of this utility model is achieved through the following technical solution: a deep processing device that uses pig manure as an alternative fuel, including a pig manure solid-liquid separation mechanism A, a pig manure stacking mechanism B connected to a conveying device, a pig manure crushing mechanism C connected to a conveying device, and a pig manure fuel distribution mechanism D connected to a feeding device.

[0008] The pig manure solid-liquid separation mechanism A includes a pig manure storage tank, a sewage storage tank is provided on one side of the pig manure storage tank, a sewage suction pump is provided above the pig manure storage tank and the sewage storage tank, and a solid-liquid separator, a filter press and a belt conveyor are arranged sequentially from top to bottom above the sewage storage tank.

[0009] The sludge suction pump's suction pipe is located inside the pig manure storage tank, and the sludge suction pump's discharge pipe is connected to the feed inlet of the solid-liquid separator.

[0010] Wastewater generated by the solid-liquid separator and the filter press is discharged into a wastewater storage tank. The solid discharge port of the solid-liquid separator is connected to the feed port of the filter press. The solid discharge port of the filter press is located above the belt conveyor. The belt conveyor transports the solid pig manure after solid-liquid separation to the pig manure stacking mechanism B.

[0011] This greatly reduces the moisture content in pig manure, thereby shortening the time required for subsequent drying.

[0012] The pig manure stacking mechanism B is located in the storage yard, which is equipped with a storage shed with pallet racks.

[0013] The storage sheds protect the stacked pig manure from rain and snow, preventing the drying process from being affected. After drying, the pig manure is sent to a manure crushing plant for processing.

[0014] The pig manure crushing mechanism includes a crusher, which is located next to the pig manure stacking mechanism B. The dried solid pig manure from the pig manure stacking mechanism B is fed into the crusher for crushing. The discharge port of the crusher is equipped with a conveyor belt, one end of which is equipped with an elevator. The discharge port of the elevator is equipped with a buffer chamber, and a double-tube auger is installed below the buffer chamber.

[0015] The pig manure fuel distribution mechanism D includes a metering belt scale, which is located below the discharge port of the double-tube auger. The discharge port of the metering belt scale is equipped with a feeding divider wheel, and an emergency start gate valve is installed at the discharge port of the feeding divider wheel. A decomposition furnace is located below the discharge port of the feeding divider wheel.

[0016] The crushed solid pig manure is quantitatively conveyed by a metering belt scale, so that the crushed pig manure can be evenly fed into the feeding divider wheel. This avoids the large accumulation of crushed pig manure in the feeding divider wheel, which affects the uniformity of the output. The crushed pig manure is fed into the decomposition furnace by the feeding divider wheel and the emergency start gate valve. The decomposition furnace preheats and burns the crushed pig manure to replace fuel for cement production.

[0017] Positive and beneficial effects: 1. This deep-processing device, which utilizes pig manure as an alternative fuel, generates calorific value from waste pig manure from pig farms, creating value for the manure and reducing environmental pollution. The water separated from the waste pig manure is filtered and reused, saving water resources. Cement companies use the filtered pig manure for calcination, reducing coal consumption, saving energy, reducing environmental pollution, and reducing carbon dioxide emissions. Furthermore, it creates conditions for in-depth cooperation between industry and agriculture, generating more value for agricultural development and farmers' income, finding the best cooperation point for comprehensive waste utilization, and complementing each other.

[0018] 2. This deep processing device that uses pig manure as an alternative fuel uses a pig manure solid-liquid separation mechanism to perform preliminary solid-liquid separation treatment on pig manure with high water content, which greatly reduces the water content in pig manure, thereby shortening the time consumed in subsequent pig manure drying, and can also store and centrally purify the separated wastewater.

[0019] 3. This deep processing device that uses pig manure as an alternative fuel stacks solid pig manure with a moisture content of 30% on pallet racks. After natural drying, the moisture content of the solid pig manure is reduced to 10%, making it suitable for combustion. The storage shed protects the stacked pig manure from rain and snow affecting the drying process. After drying, the pig manure is sent to a pig manure crushing mechanism for crushing. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the solid-liquid separation mechanism for pig manure of this utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the pig manure crushing mechanism of this utility model;

[0023] Figure 4 This is a schematic diagram of the pig manure fuel distribution mechanism of this utility model.

[0024] In the diagram: A-Pig manure solid-liquid separation mechanism, B-Pig manure stacking mechanism, C-Pig manure crushing mechanism, D-Pig manure fuel distribution mechanism, 1-Pig manure storage tank, 2-Sewage suction pump, 3-Solid-liquid separator, 4-Sewage storage tank, 5-Filter press, 6-Belt conveyor, 7-Crusher, 8-Conveyor belt, 9-Elevator, 10-Buffer silo, 11-Double-pipe auger, 12-Metering belt scale, 13-Feeding divider wheel, 14-Emergency start gate valve, 15-Decomposition furnace. Detailed Implementation

[0025] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model. Example 1

[0026] like Figures 1 to 4 As shown, a deep processing device for using pig manure as an alternative fuel includes a pig manure solid-liquid separation mechanism A, which is connected to a pig manure stacking mechanism B via a conveying device. The pig manure stacking mechanism B is connected to a pig manure crushing mechanism C via a conveying device. The pig manure crushing mechanism C is connected to a pig manure fuel distribution mechanism D via a feeding device.

[0027] like Figures 1 to 2 As shown, the pig manure solid-liquid separation mechanism A includes a pig manure storage tank 1, a sewage storage tank 4 is provided on one side of the pig manure storage tank 1, a sewage suction pump 2 is provided above the pig manure storage tank 1 and the sewage storage tank 4, and a solid-liquid separator 3, a filter press 5 and a belt conveyor 6 are arranged sequentially from top to bottom above the sewage storage tank 4.

[0028] The sludge suction pipe of the sludge suction pump 2 is located inside the pig manure storage tank 1, and the discharge pipe of the sludge suction pump 2 is connected to the inlet of the solid-liquid separator 3.

[0029] Wastewater from both the solid-liquid separator 3 and the filter press 5 is discharged into the wastewater storage tank 4. The solid discharge port of the solid-liquid separator 3 is connected to the feed port of the filter press 5. The solid discharge port of the filter press 5 is located above the belt conveyor 6. The belt conveyor 6 transports the solid pig manure after solid-liquid separation to the pig manure stacking mechanism B. A suction pump 2 is installed in the pig manure solid-liquid separation mechanism A to extract the pig manure stored in the pig manure storage tank 1 and transport it to the solid-liquid separator 3. The solid-liquid separator 3 performs preliminary solid-liquid separation on the pig manure. The separated wastewater is directly discharged into the wastewater storage tank 4, while the separated solid pig manure is directly transported to the filter press 5 below for further solid-liquid filtration. The liquid separated by the filter press 5 is discharged into the sewage pump 2, while the solids fall onto the belt conveyor 6. The initial water content of the pig manure is 70%. After double solid-liquid separation, the water content of the solid pig manure is 30%. The solid pig manure with 30% water content can then be transported to the pig manure stacking mechanism B via the belt conveyor 6. The pig manure stacking mechanism B further dries the solid pig manure. The pig manure solid-liquid separation mechanism A performs preliminary solid-liquid separation on the pig manure with higher water content, which greatly reduces the water content in the pig manure, thereby shortening the time consumed in subsequent pig manure drying. It can also store and centrally purify the separated wastewater.

[0030] like Figures 1 to 3 As shown, pig manure stacking mechanism B is set up in the storage yard, which is equipped with a storage shed with pallet racks. By setting up the storage shed with pallet racks in the storage yard, solid pig manure with a moisture content of 30% is stacked on the pallet racks and naturally dried, reducing the moisture content of the solid pig manure to 10%, making it usable as fuel. The storage shed can protect the stacked pig manure and prevent rain and snow from affecting the drying process. After drying, the pig manure is sent to the pig manure crushing mechanism for crushing.

[0031] like Figures 1 to 4 As shown, the pig manure crushing mechanism includes a crusher 7, which is located next to the pig manure stacking mechanism B. The dried solid pig manure from the stacking mechanism B is fed into the crusher 7 for crushing. The discharge port of the crusher 7 is equipped with a conveyor belt 8, and one end of the conveyor belt 8 is equipped with an elevator 9. The discharge port of the elevator 9 is equipped with a buffer chamber 10, and a double-tube auger 11 is located below the buffer chamber 10. By setting up a pig manure crushing mechanism C behind the stacking mechanism B, the dried pig manure is crushed into granules, increasing the contact area between the pig manure and air during combustion, thus making the pig manure more fully combustible as fuel. Example 2

[0032] like Figures 1 to 4As shown, the pig manure fuel distribution mechanism D includes a metering belt scale 12, which is located below the discharge port of the double-tube auger 11. A feeding divider wheel 13 is installed at the discharge port of the metering belt scale 12, and an emergency start gate valve 14 is installed at the discharge port of the feeding divider wheel 13. A decomposition furnace 15 is located below the discharge port of the feeding divider wheel 13. By installing the metering belt scale 12 between the decomposition furnace 15 and the double-tube auger 11, the metering belt scale 12 quantitatively conveys the crushed solid pig manure, ensuring that the crushed pig manure enters the feeding divider wheel 13 evenly. This prevents the crushed pig manure from accumulating excessively in the feeding divider wheel 13, which would affect the uniformity of the discharge. The feeding divider wheel 13 and the feeding divider wheel 14... The emergency start gate valve 14 feeds crushed pig manure into the decomposition furnace 15, where it is preheated and burned to replace fuel in cement production. This deep-processing device utilizes the waste pig manure from pig farms to generate calorific value, creating value from the manure and reducing environmental pollution. The water separated from the waste pig manure is filtered and reused, saving water resources. Cement companies use the filtered pig manure for calcination, reducing coal consumption, saving energy, reducing environmental pollution, and reducing carbon dioxide emissions. It also creates conditions for deep cooperation between industry and agriculture, generating more value for agricultural development and farmers' income, finding the best cooperation point for comprehensive waste utilization, and complementing each other.

[0033] The working principle of this utility model is as follows:

[0034] S1. The pig manure storage tank 1, containing 70% water, is pumped by the sewage pump 2 to the solid-liquid separation 3 to separate the water from the pig manure. The separated water is stored in the sewage tank 4 for subsequent sewage treatment. The solid enters the filter press 5 to filter the water-containing solid and form pig manure blocks of a fixed size. The solid pig manure after filtration has a water content of about 30%.

[0035] S2. After the solid pig manure blocks are filtered, they are stacked on pallet racks by a belt conveyor and stored in a storage shed to air dry naturally until the moisture content reaches about 10% before use.

[0036] S3. The dried pig manure blocks are crushed into pig manure particles smaller than 20mm by the crusher 7. The pig manure particles are conveyed by the conveyor belt 8 and lifted by the elevator 9 to the newly built buffer silo 10 on the cement kiln preheater frame. A material stabilizing double-pipe auger 11 is installed under the storage silo. After the pig manure particles pass through the double-pipe auger for material stabilization, they enter the metering belt scale 12 and are weighed according to a certain ratio. After passing through the feeding dividing wheel 13, they enter the emergency start gate valve 14, which feeds the crushed pig manure into the decomposition furnace 15. The decomposition furnace 15 preheats and burns the crushed pig manure to replace fuel for cement production.

Claims

1. A deep processing device for using pig manure as an alternative fuel, characterized in that: The system includes a pig manure solid-liquid separation mechanism (A), which is connected to a pig manure stacking mechanism (B) via a conveying device. The pig manure stacking mechanism (B) is connected to a pig manure crushing mechanism (C) via a conveying device. The pig manure crushing mechanism (C) is connected to a pig manure fuel distribution mechanism (D) via a feeding device.

2. The deep processing device for using pig manure as an alternative fuel according to claim 1, characterized in that: The pig manure solid-liquid separation mechanism (A) includes a pig manure storage tank (1), a sewage storage tank (4) is provided on one side of the pig manure storage tank (1), a sewage suction pump (2) is provided above the pig manure storage tank (1) and the sewage storage tank (4), and a solid-liquid separator (3), a filter press (5) and a belt conveyor (6) are arranged sequentially from top to bottom above the sewage storage tank (4). The sludge suction pump (2) has its sludge suction pipe installed inside the pig manure storage tank (1), and the discharge pipe of the sludge suction pump (2) is connected to the feed inlet of the solid-liquid separator (3). Wastewater generated by the solid-liquid separator (3) and the filter press (5) is discharged into the wastewater storage tank (4). The solid discharge port of the solid-liquid separator (3) is connected to the feed port of the filter press (5). The solid discharge port of the filter press (5) is located above the belt conveyor (6). The belt conveyor (6) transports the solid pig manure after solid-liquid separation to the pig manure stacking mechanism (B).

3. The deep processing device for using pig manure as an alternative fuel according to claim 1, characterized in that: The pig manure stacking mechanism (B) is located in the storage yard, which is equipped with a storage shed with pallet racks.

4. A deep processing device for using pig manure as an alternative fuel according to claim 1, characterized in that: The pig manure crushing mechanism (C) includes a crusher (7), which is located next to the pig manure stacking mechanism (B). The dried solid pig manure from the pig manure stacking mechanism (B) is fed into the crusher (7) for crushing. The discharge port of the crusher (7) is equipped with a conveyor belt (8), and one end of the conveyor belt (8) is equipped with an elevator (9). The discharge port of the elevator (9) is equipped with a buffer chamber (10), and a double-pipe auger (11) is installed below the buffer chamber (10).

5. A deep processing device for using pig manure as an alternative fuel according to claim 4, characterized in that: The pig manure fuel distribution mechanism (D) includes a metering belt scale (12), which is located below the discharge port of the double-tube auger (11). The discharge port of the metering belt scale (12) is equipped with a feeding divider wheel (13), and an emergency start gate valve (14) is provided at the discharge port of the feeding divider wheel (13). A decomposition furnace (15) is located below the discharge port of the feeding divider wheel (13).

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