Excrement drying treatment device

Abstract

The invention provides an excrement drying treatment device. The excrement drying treatment device comprises a conveying device, a drying device and a waste gas deodorization device, a plurality of rotary scrapers are sequentially arranged on a conveying belt of the conveying device at intervals in the conveying direction, the rotary scrapers are rotationally arranged above the conveying belt along the central axes of the rotary scrapers, and the projection of the central axes of the rotary scrapers on the conveying belt is perpendicular to the conveying direction of the conveying belt. When the rotary scraper rotates, a gap is formed between the rotary scraper and the surface of the conveying belt, and excrement is flattened and formed under the pressure of the rotary scraper and the conveying belt when passing through the gap. The excrement drying device is reasonable in structural design, excrement with the moisture content exceeding 70% is scraped into sheet-shaped strips in the conveying process, the excrement is easier to dry, the drying speed is high, the efficiency is high, and the excrement drying device is not limited by weather and sites; the whole treatment device is low in energy consumption and high in output, the cost is effectively saved, odor in the drying process is effectively eliminated, and environmental pollution is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of drying devices, and in particular to a feces drying and processing device. Background Art

[0002] Quail feces are rich in nutrients and can be used as organic fertilizer. However, quail feces have a high water content, and using them directly as fertilizer can easily increase soil moisture and affect crop growth. Currently, the main way to deal with quail feces is to dry them naturally, but this method is limited by factors such as weather and site, and it is easy to produce odor during the drying process, which affects the environment.

[0003] Existing treatment methods such as natural drying, biogas fermentation and high-temperature composting have defects such as long treatment cycle, large equipment investment, high operating cost, complex operation and possible odor.

[0004] The existing quail feces treatment process needs to consider the feces water content. When the feces water content is high, the moisture content exceeds 70%, if the feces are directly dried without treatment, there will be problems such as the center cannot be dried, or the drying process takes a long time and the treatment efficiency is low. During the long treatment process, the odor generated by the feces drying will also pollute the surrounding environment.

[0005] Therefore, a new quail manure drying and processing technology is urgently needed to solve these problems, so as to improve processing efficiency and reduce environmental pollution. Summary of the invention

[0006] The technical problem to be solved by the present invention is: in order to overcome the shortcomings of the prior art, the present invention provides a feces drying and processing device, which can effectively dry feces with a moisture content of more than 70%, has high drying efficiency, is not restricted by weather and site, and can effectively remove feces odor during the drying process, reducing pollution to the environment.

[0007] The technical solution adopted by the present invention to solve its technical problems is: a feces drying and processing device, including a conveying device and a drying device; the drying device is an oven, the front top of the oven is provided with a feed inlet, the rear bottom is provided with a discharge port, a drying channel is provided in the oven along the direction from the feed inlet to the discharge port, the drying channel is driven by a three-phase AC motor for conveying, and a heat pump is provided outside the oven to provide a drying heat source for the oven; the conveying device is arranged at the front end of the feed inlet of the drying device, the conveying device includes a conveying bracket, a conveyor belt and a first synchronous rotating gear driving the conveyor belt to move, the conveyor The conveyor belt is arranged on the conveying bracket, and the drying material channel is provided with a second synchronous rotating gear which moves synchronously with the drying material channel, and the first synchronous rotating gear is transmission-connected with the second synchronous rotating gear; a plurality of rotating scrapers are arranged on the conveying belt in sequence and at intervals along the conveying direction, and the rotating scraper is rotatably arranged above the conveyor belt along its central axis, and the projection of the central axis of the rotating scraper on the conveyor belt is perpendicular to the conveying direction of the conveyor belt; when the rotating scraper rotates, there is a gap between the rotating scraper and the surface of the conveyor belt, and when the feces passes through the gap, it is flattened into shape by the pressure of the rotating scraper and the conveyor belt.

[0008] In the above scheme, in order to solve the problem of difficulty in handling feces with high water content, a rotating scraper is integrated on the conveying device. The gap between the rotating scraper and the conveyor belt is utilized to scrape the feces flat during the process of conveying the feces to the oven, so that the feces is in the form of flat sheets, increasing the surface area and facilitating drying in the oven, thereby effectively improving the drying efficiency of the feces.

[0009] Furthermore, the rotary scraper includes a rotary shaft and a plurality of scraper parts fixed on the outer circumference of the rotary shaft, the two ends of the rotary shaft are rotatably connected to the conveying bracket through rolling bearings, the inner ring of the rolling bearing is fixed to the rotary shaft, and the outer ring is fixed to the conveying bracket through a fixed steel frame, the fixed steel frame has a mounting hole, the mounting hole is threaded with a positioning bolt, the lower end surface of the positioning bolt is fixed with a sliding fixing sheet, and the outer ring of the rolling bearing is clamped and fixed by the sliding fixing sheet and the fixed steel frame. By setting the rolling bearing, the rotary scraper can be effectively limited and set above the conveyor belt, and can be rotated along the rotary shaft, thereby realizing the rotation operation of the rotary scraper, which provides convenience for scraping feces.

[0010] Preferably, the feces drying and processing device includes two rotating scrapers, which are divided into a distal rotating scraper and a proximal rotating scraper according to the distance from the oven; the scraper portion of the distal rotating scraper is a flat plate structure, and the lower edge of the flat plate structure is a flat end; the scraper portion of the proximal rotating scraper is also a flat plate structure, and the lower edge of the flat plate structure is serrated. The feces first pass through the distal rotating scraper and are scraped flat into a flat sheet structure, and then pass through the proximal rotating scraper and are further shaped and cut into strips by the serrated lower edge, which further increases the surface area of ​​the treated feces and improves the efficiency of heat exchange in the drying operation.

[0011] On the basis of the above-mentioned scraping and drying, the feces drying and processing device also includes a waste gas deodorization device. The waste gas deodorization device is used to purify the gas generated by feces. The waste gas deodorization device includes a spray tower, an induced draft fan and a chimney. The top of the oven is provided with an air outlet, the lower end of the spray tower is provided with an air inlet, the air inlet and the air outlet are connected through a pipeline, the induced draft fan is arranged on the side of the spray tower, the air inlet of the induced draft fan is connected with the top pipeline of the spray tower, and the air outlet of the induced draft fan is connected with the chimney pipeline.

[0012] Preferably, the spray solution of the spray tower is an alkaline solution. The alkaline solution can effectively react with the gas, effectively remove sulfur-containing hydrogen and ammonia, and deodorize the malodorous gas generated when the feces is dried.

[0013] Furthermore, in order to ensure the drying efficiency of the oven and maintain the internal temperature of the oven, the outer wall of the oven is wrapped with an insulation layer, and the insulation layer is a rock wool board.

[0014] Furthermore, the oven has a heat source circulation inlet at the bottom and a heat source circulation outlet at the top; the heat source circulation outlet and the heat source circulation inlet are connected via a heat source circulation pipeline; an axial flow fan and a heat exchanger are sequentially arranged on the heat source circulation pipeline along the circulation direction; the hot air provided by the heat pump is connected to the front end of the axial flow fan through a pipeline to provide hot air for the axial flow fan.

[0015] Furthermore, the hot air provided by the heat pump is heated by cold coal.

[0016] The beneficial effect of the present invention is that the feces drying and processing device provided by the present invention has a reasonable structural design. For feces with a moisture content of more than 70%, the feces can be effectively scraped into flakes and strips during the transmission process, making it easier to dry, with a fast drying speed and high efficiency, and is not restricted by factors such as weather and site. At the same time, the overall processing device has low energy consumption, high output, and effective cost savings. The odor in the drying process is effectively eliminated, reducing environmental pollution. When used to process quail feces with a moisture content of more than 70%, the dried quail feces has good quality and can be used as high-quality organic fertilizer to increase economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0018] Figure 1 It is a schematic diagram of the structure of the conveying device and the drying device in the optimal embodiment of the present invention.

[0019] Figure 2 It is a stereoscopic diagram of a conveying device and a drying device in the best embodiment of the present invention.

[0020] Figure 3 It is a stereoscopic view of the distal rotating scraper in the best embodiment of the present invention.

[0021] Figure 4 It is a stereoscopic view of the proximal rotating scraper in the best embodiment of the present invention.

[0022] Figure 5 It is a schematic diagram of the best embodiment of the present invention.

[0023] In the figure, 1, conveying device; 2, distal rotating scraper; 21, positioning bolt of distal rotating scraper; 22, fixed steel frame of distal rotating scraper; 23, scraper portion of distal rotating scraper; 24, sliding fixed plate of distal rotating scraper; 25, rolling bearing of distal rotating scraper; 3, proximal rotating scraper; 31, positioning bolt of proximal rotating scraper; 32, fixed steel frame of proximal rotating scraper; 33, scraper portion of proximal rotating scraper; 34, sliding fixed plate of proximal rotating scraper; 35, rolling bearing of proximal rotating scraper; 4, first synchronous rotating gear; 5, feed inlet; 6, oven; 7, discharge outlet; 8, three-phase AC motor; 9, chimney; 10, spray tower; 11, induced draft fan; 12, heat exchanger; 13, axial flow fan; 14, heat pump. DETAILED DESCRIPTION

[0024] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams that only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention, and directions and references (e.g., up, down, left, right, etc.) may only be used to help describe the features in the drawings. Therefore, the following specific embodiments are not to be taken in a limiting sense, and the scope of the subject matter claimed is limited only by the attached claims and their equivalents.

[0025] like Figure 5 The feces drying and processing device shown is the best embodiment of the present invention. The feces drying and processing device provided in this embodiment is used to specifically process quail feces with a moisture content of more than 70%.

[0026] The feces drying and processing device comprises a conveying device 1, a drying device and an exhaust gas deodorizing device. According to the feces conveying and processing direction, the conveying device 1 is arranged in front of the drying device, and is used to convey feces to the drying device, and completes the preliminary scraping and stripping of the feces during the conveying process. The shaped feces is dried in the drying device, and the odor generated therein is purified by the exhaust gas deodorizing device and then discharged to the outside.

[0027] Specifically, Figure 1 and Figure 2 As shown, the conveying device 1 includes a conveying support, a conveyor belt and a first synchronous rotating gear 4 for driving the conveyor belt. The conveyor belt is arranged on the conveying support. Two rotating scrapers are arranged on the conveyor belt in sequence along the conveying direction. The rotating scraper is arranged above the conveyor belt along its central axis, and the projection of the central axis of the rotating scraper on the conveyor belt is perpendicular to the conveying direction of the conveyor belt. When the rotating scraper rotates, there is a gap between the rotating scraper and the surface of the conveyor belt. When the feces passes through the gap, it is pressed and formed by the pressure of the rotating scraper and the conveyor belt.

[0028] In this embodiment, if Figure 3 and Figure 4 As shown, the rotating scraper and the conveying bracket are positioned and installed by rolling bearings. The rotating scraper includes a rotating shaft and four scraper parts fixed on the outer peripheral surface of the rotating shaft at equal angles in the circumferential direction. The two ends of the rotating shaft are rotatably connected to the conveying bracket through rolling bearings. The inner ring of the rolling bearing is fixed to the rotating shaft, and the outer ring is fixed to the conveying bracket through a fixed steel frame. The fixed steel frame has a mounting hole, and a positioning bolt is connected to the inner thread of the mounting hole. A sliding fixing plate is fixed to the lower end surface of the positioning bolt, and the outer ring of the rolling bearing is clamped and fixed by the sliding fixing plate and the fixed steel frame. Through the setting of the rolling bearing, the rotating scraper can be effectively limited and set above the conveyor belt, and can be rotated along the rotating shaft, thereby realizing the rotation operation of the rotating scraper, which provides convenience for scraping feces.

[0029] The power of the rotating scraper blade is provided by the conveyor belt, and the conveyor belt, the distal rotating scraper blade 2 and the proximal rotating scraper blade 3 may adopt a transmission structure such as, but not limited to, a belt transmission. For example, one side of the transmission shaft of the conveyor belt is connected to the rotating shaft belt of the distal rotating scraper blade 2, and the rotating shaft of the proximal rotating scraper blade 3 is connected to the rotating shaft belt of the distal rotating shaft, so that the conveying power of the conveyor belt is used to drive the distal rotating scraper blade 2 and the proximal rotating scraper blade 3 to be conveyed synchronously, that is, the conveyor belt conveys feces from left to right, and the distal rotating scraper blade 2 and the proximal rotating scraper blade 3 rotate counterclockwise synchronously.

[0030] In this embodiment, the two rotating scrapers are respectively set as the distal rotating scraper 2 and the proximal rotating scraper 3 according to the distance from the oven 6. The scraper portion of the distal rotating scraper 2 is a flat plate structure, and the lower edge of the flat plate structure is a flat end. The scraper portion of the proximal rotating scraper 3 is also a flat plate structure, and the lower edge of the flat plate structure is serrated. The feces first passes through the distal rotating scraper 2 and is scraped flat into a flat sheet structure, and then passes through the proximal rotating scraper 3 and is further shaped and cut into strips by the serrated lower edge, which further increases the surface area of ​​the treated feces, increases the heating area, and improves the efficiency of heat exchange in the drying operation.

[0031] The feces that are flattened, shaped and cut into strips by the rotating scraper fall into the oven 6 from the tail end of the conveyor belt. Specifically, the drying device in this embodiment is an oven 6. The top of the front end of the oven 6 has a feed port 5, and the bottom of the rear end has a discharge port 7. A drying channel is provided in the oven 6 along the direction from the feed port 5 to the discharge port 7. The drying channel is a three-layer feces conveyor belt that is sequentially arranged from top to bottom. After the feces falls on the feces conveyor belt, it is carried and transported by the conveyor belt, and falls into the conveyor belt of the next layer at the end of the conveyor belt of this layer. The feces conveyor belt is powered by a three-phase AC motor 8 to drive the conveyor. A second synchronous rotating gear that moves synchronously with the drying channel is provided on the drying channel, and the first synchronous rotating gear 4 is connected to the second synchronous rotating gear in transmission. The power of the drying channel can be synchronously transmitted to the conveyor belt and drive the conveyor belt to operate synchronously.

[0032] The oven 6 is provided with a heat pump 14 outside to provide a drying heat source for the oven 6. The hot air provided by the heat pump 14 is heated by cold coal. The oven 6 has a heat source circulation inlet at the bottom and a heat source circulation outlet at the top. The heat source circulation outlet is connected to the heat source circulation inlet through a heat source circulation pipeline. An axial flow fan 13 and a heat exchanger 12 are sequentially provided on the heat source circulation pipeline along the circulation direction. The hot air provided by the heat pump 14 is connected to the front end of the axial flow fan 13 through a pipeline to provide hot air for the axial flow fan 13.

[0033] In actual design, in order to ensure heat supply, this embodiment provides that three independent heat pumps 14 are provided outside the oven 6, and the hot air provided by the three independent heat pumps 14 is synchronously connected to the main pipeline at the front end of the axial flow fan 13. At the same time, in order to heat the oven 6 more evenly, six heat cycle inlets are opened at the bottom of the oven 6 and six heat cycle outlets are correspondingly set at the top. The main pipeline is divided into six groups of pipelines before entering the axial flow fan 13, and each group of pipelines corresponds to an axial flow fan 13, a heat exchanger 12, a heat cycle inlet and a heat cycle outlet. In this way, the three independent heat pumps 14 synchronously provide heat for the oven 6.

[0034] In order to ensure the drying efficiency of the oven 6 and maintain the internal temperature of the oven 6, the outer wall of the oven 6 is wrapped with an insulation layer, and the insulation layer is a rock wool board.

[0035] like Figure 5As shown, on the basis of the above-mentioned scraping and drying, the feces drying and processing device also includes a waste gas deodorization device, which uses the waste gas deodorization device to purify the gas generated by the feces. The waste gas deodorization device includes a spray tower 10, an induced draft fan 11 and a chimney 9. An air outlet is opened at the top of the oven 6, and an air inlet is opened at the lower end of the spray tower 10. The air inlet and the air outlet are connected by a pipeline. The induced draft fan 11 is arranged on the side of the spray tower 10, and the air inlet of the induced draft fan 11 is connected to the top pipeline of the spray tower 10, and the air outlet of the induced draft fan 11 is connected to the chimney 9 pipeline. The spray solution of the spray tower 10 is an alkaline solution. The alkaline solution can effectively react with the gas, effectively remove sulfur-containing hydrogen and ammonia, and deodorize the malodorous gas generated when the feces is dried.

[0036] When in use, the three-phase AC motor 8 is started, and the feces conveyor belt in the oven 6 moves synchronously with the conveying device 1 through the first synchronous rotating gear 4 and the second synchronous rotating gear. The feces are scraped into a uniform thickness by the conveying device 1 through the distal rotating scraper 2, and then scraped into strips by the proximal rotating scraper 3 to increase its heating area, and then injected into the feces conveyor belt inside the oven 6 through the feed port 5 from the upper left of the oven 6. The heat pump 14 is started, and the hot air enters the oven 6 through the axial flow fan 13 and the heat exchanger 12 to heat and dry the feces. At the same time, the water vapor and hot air in the oven 6 flow through the pipeline into the spray tower 10, and the spray tower 10 sprays an alkaline solution to remove the odor of the generated gas. The treated gas flows from the spray tower 10 into the chimney 9 by the action of the fan, and is finally discharged through the chimney 9. After heating, drying and dehumidification within the set time, the dried feces are finally collected and bagged through the discharge port 7 at the rear end of the oven 6.

[0037] The feces drying device designed in this way has the following effects:

[0038] 1. Fast drying speed and high efficiency, not restricted by weather, site and other factors; this drying equipment can dry 5 tons of feces within 10 hours, and the moisture content of more than 70% can be dried to less than 5%;

[0039] 2. The equipment has low energy consumption, high output, and effective cost savings; this drying equipment reduces the cost of hiring workers on the basis of low electricity consumption, and 5 tons of feces with a moisture content of 70% will leave about 2.5 tons of dry feces after drying;

[0040] 3. The odor in the drying process is effectively eliminated, reducing environmental pollution;

[0041] 4. The dried quail manure is of good quality and can be used as high-quality organic fertilizer to increase economic benefits.

[0042] Based on the above ideal embodiments of the present invention, the relevant staff can make various changes and modifications without departing from the technical concept of the present invention through the above description. The technical scope of the present invention is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A feces drying and processing device, characterized in that: It comprises a conveying device (1) and a drying device; The drying device is a drying oven (6), the front top of the drying oven (6) is provided with a feed port (5), the rear bottom is provided with a discharge port (7), a drying channel is provided inside the drying oven (6) along the direction from the feed port (5) to the discharge port (7), the drying channel is driven by a three-phase AC motor (8), and the outside of the drying oven (6) is provided with a heat pump (14) for providing a drying heat source for the drying oven (6); The conveying device (1) is arranged at the front end of the feed inlet (5) of the drying device, and the conveying device (1) comprises a conveying bracket, a conveyor belt and a first synchronous rotating gear (4) for driving the conveyor belt to move, the conveyor belt is arranged on the conveying bracket, the drying material channel is provided with a second synchronous rotating gear that moves synchronously with the drying material channel, and the first synchronous rotating gear (4) is drivingly connected with the second synchronous rotating gear; A plurality of rotating scrapers are arranged on the conveyor belt at intervals in sequence along the conveying direction. The rotating scrapers are arranged above the conveyor belt and rotate along their central axes. The projection of the central axes of the rotating scrapers on the conveyor belt is perpendicular to the conveying direction of the conveyor belt. When the rotating scrapers rotate, there is a gap between the rotating scrapers and the surface of the conveyor belt. When feces passes through the gap, it is flattened into shape by the pressure of the rotating scrapers and the conveyor belt.

2. The feces drying and processing device according to claim 1, characterized in that: The rotating scraper includes a rotating shaft and a plurality of scraper parts fixed on the outer circumferential surface of the rotating shaft. The two ends of the rotating shaft are rotatably connected to the conveying bracket through rolling bearings. The inner ring of the rolling bearing is fixed to the rotating shaft, and the outer ring is fixed to the conveying bracket through a fixed steel frame. A mounting hole is opened on the fixed steel frame, and a positioning bolt is connected to the inner thread of the mounting hole. A sliding fixing plate is fixed to the lower end surface of the positioning bolt, and the outer ring of the rolling bearing is clamped and fixed by the sliding fixing plate and the fixed steel frame.

3. A feces drying and processing device according to claim 2, characterized in that: It comprises two rotating scrapers, which are divided into a distal rotating scraper (2) and a proximal rotating scraper (3) according to the distance from the oven (6); The scraper portion of the distal rotating scraper (2) is a flat plate structure, and the lower edge of the flat plate structure is a plane end; The scraper portion of the proximal rotating scraper (3) is also a flat plate structure, and the lower edge of the flat plate structure is serrated.

4. The feces drying and processing device according to claim 1, characterized in that: The invention comprises a waste gas deodorization device, wherein the waste gas deodorization device comprises a spray tower (10), an induced draft fan (11) and a chimney (9); an air outlet is provided at the top of the oven (6); an air inlet is provided at the lower end of the spray tower (10); the air inlet and the air outlet are connected via a pipeline; the induced draft fan (11) is arranged on the side of the spray tower (10); the air inlet of the induced draft fan (11) is connected to the pipeline at the top of the spray tower (10); and the air outlet of the induced draft fan (11) is connected to the pipeline of the chimney (9).

5. The feces drying and processing device according to claim 4, characterized in that: The spray solution of the spray tower (10) is an alkaline solution.

6. The feces drying and processing device according to claim 1, characterized in that: The outer wall of the oven (6) is wrapped with a heat-insulating layer, and the heat-insulating layer is a rock wool board.

7. The feces drying and processing device according to claim 1, characterized in that: The oven (6) has a heat source circulation inlet at the bottom and a heat source circulation outlet at the top. The heat source circulation outlet is connected to the heat source circulation inlet via a heat source circulation pipeline. An axial flow fan (13) and a heat exchanger (12) are sequentially arranged on the heat source circulation pipeline along the circulation direction. The hot air provided by the heat pump (14) is connected to the front end of the axial flow fan (13) through a pipeline to provide hot air for the axial flow fan (13).

8. The feces drying and processing device according to claim 1, characterized in that: The hot air provided by the heat pump (14) is heated by cold coal.

Images