A circulating rake-type sewage fermentation treatment equipment

Abstract

The present invention discloses a circulating raking type waste fermentation treatment equipment, comprising: a fermentation bed, the fermentation bed comprising a base frame and a plurality of material support tables connected to the base frame and arranged at intervals from top to bottom, each material support table having a material discharge through hole penetrating along the thickness direction of the corresponding material support table; a circulating raking mechanism assembly, the raking mechanism assembly comprising a circulating power component and a raking component connected to the circulating power component and capable of being driven by the circulating power component to circulate around an odd-numbered material support table or an even-numbered material support table among the plurality of material support tables. The circulating raking type waste fermentation treatment equipment and waste treatment method are intended to solve the technical problems of poor fermentation effect and low efficiency of the multi-layer fermentation equipment for waste in the prior art.

Description

Technical Field

[0001] The invention belongs to the field of manure treatment equipment, and in particular relates to a circulating raking type waste fermentation treatment equipment. Background Art

[0002] At present, there are many methods for treating manure and sewage, including fermentation bed treatment, windrow fermentation, fermentation tank fermentation, fermentation tower fermentation and other fermentation methods, among which fermentation bed treatment, windrow fermentation and fermentation tank fermentation have the following defects: the fermentation pile is relatively high, and due to the compaction of the pile, the ventilation effect is poor, the oxygen content inside the pile is insufficient, and the evaporation of water is hindered, resulting in slow material drying speed, long fermentation time, and high energy consumption required for blowing and raking.

[0003] In order to avoid this defect, in recent years, a variety of multi-layer manure fermentation methods and equipment have been developed in the relevant technical field. The multi-layer fermentation method is used to solve the problem of the pile being too high, which is conducive to ventilation and water evaporation. These methods can be roughly summarized as multi-layer static fermentation, multi-layer flip-plate fermentation, and multi-layer conveyor belt (chain plate) fermentation. Multi-layer fermentation reduces the height of the fermentation layer, the air permeability and water evaporation are greatly improved, and the energy consumption of turning and raking is significantly reduced, but there are disadvantages such as complex structure, many transmission parts, and difficult maintenance. For example, although a multi-layer fermentation design is adopted, each layer of fermentation space includes a flat material device, a conveying device, an aeration device, a turning and throwing device, and a conveying device, resulting in a complex structure and difficult maintenance. In particular, the interior of the fermentation room is hot and humid, corrosive, and has a high concentration of toxic gases, and it is very difficult to maintain too many transmission parts. The flap-type fermentation device uses the opening and closing of multiple layers of flaps to make the fermented materials fall from the top layer to the lower layer. Gravity is used to break up the materials and bring them into contact with oxygen when they fall, thus realizing an aerobic fermentation process. This method has the characteristics of a simple structure, but the materials can only be broken up and turned once when they fall, so the efficiency is limited. The materials are easily compacted, which affects the aerobic fermentation effect, and the evaporation of water is also hindered. Summary of the invention

[0004] Technical issues to be solved

[0005] Based on this, the present invention proposes a circulating raking type sewage fermentation treatment equipment and a sewage treatment method, which are intended to solve the technical problems of poor fermentation effect and low efficiency of multi-layer sewage fermentation equipment in the prior art.

[0006] Technical Solution

[0007] In order to solve the above technical problems, the present invention proposes a circulating raking type sewage fermentation treatment equipment, the circulating raking type sewage fermentation treatment equipment comprising:

[0008] A fermentation bed, the fermentation bed comprising a base frame and a plurality of material support platforms connected to the base frame and arranged at intervals from top to bottom, each layer of the material support platforms having a material discharge through hole penetrating along the thickness direction of the corresponding material support platform;

[0009] A circulating raking mechanism assembly comprises a circulating power component and a raking component connected to the circulating power component and capable of being driven by the circulating power component to circulate around an odd-numbered material support platform or an even-numbered material support platform in the multi-layer material support platform.

[0010] Preferably, the circulating power assembly comprises a circulating power carrier arranged at intervals around the odd-numbered material support tables or the even-numbered material support tables among the multi-layer material support tables, and the rake assembly is mounted on the circulating power carrier so as to be cyclically movable.

[0011] Preferably, the rake assembly comprises a first tooth seat movably mounted on the circulating power carrier, and a first rake tooth and a second rake tooth mounted on the first tooth seat and extending away from each other in the up-and-down direction.

[0012] Preferably, the rake assembly comprises a second tooth seat movably mounted on the circulating power carrier and a rotating rake tooth rotatably mounted on the second tooth seat.

[0013] Preferably, the circulating power carrier is a chain, and the circulating power assembly further includes a chain driving mechanism for driving the chain.

[0014] Preferably, the chains are arranged in pairs around the corresponding material support platform, and the two chains around the corresponding material support platform are spaced apart from each other, the corresponding rake turning assembly is arranged between the two chains, and an inner plate is installed on each side of the two chains facing each other, and the two ends of the rake turning assembly are respectively connected to the inner plates corresponding to the two chains.

[0015] Preferably, the chain drive mechanism includes a sprocket connected to the corresponding chain and a motor drivingly connected to the sprocket, the radius of the sprocket is larger than the maximum height of the rake assembly protruding from the upper side of the chain and the maximum height protruding from the lower side of the chain, and the spacing between two adjacent layers of material support platforms is larger than the radius of the sprocket.

[0016] Preferably, the material discharge through holes are arranged in a plurality of rows at intervals on the material support platform along the travel direction of the rake assembly.

[0017] Preferably, a ventilation through hole is provided between two adjacent rows of material discharge through holes.

[0018] Preferably, the material support platform is a wire mesh.

[0019] Beneficial Effects

[0020] Compared with the prior art, the circulating rake-turning sewage fermentation treatment equipment and sewage treatment method of the present invention have the following beneficial effects:

[0021] 1. The circulating raking type waste fermentation treatment equipment provided by the present invention can, through the cyclic movement of the raking component, enable the waste (feces) and other materials on the material support platform 2 to fully contact with the air during multiple raking and multiple falling processes in a limited vertical space (upper and lower space). The materials are broken up and turned over multiple times, which is conducive to the rapid volatilization of moisture, accelerates the drying effect of the materials, and significantly improves the waste fermentation efficiency. The materials are not easy to become compacted, and the aerobic fermentation effect is greatly improved. A good aerobic fermentation effect can be guaranteed without high-pressure forced ventilation equipment, and the ventilation energy consumption is significantly reduced.

[0022] 2. The method inventively adopts a circular motion mode to drive the raking component, and makes this circular motion cleverly interspersed with material support platforms on different layers, thereby producing many unexpected advantages: first, the raking of materials on two adjacent material support platforms can be taken into account by adopting a circular motion of one raking component, which greatly saves the number of components and the space occupied by the components; second, the raking of materials on two adjacent material support platforms in opposite directions can be cleverly achieved through the circular motion of the raking component. When reverse movement is required, the traditional raking technology requires the raking component to be stopped first and then run in reverse. The present invention cleverly combines the raking component with the circulating power component to achieve reverse raking of different layers under the premise that the raking component is always moving. This not only saves the time spent when the raking component stops and the energy consumption required to stop it, but is also extremely beneficial in certain specific occasions, such as special occasions where uninterrupted power output is desired. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The features and advantages of the present invention will be more clearly understood by referring to the accompanying drawings, which are schematic and should not be construed as limiting the present invention in any way. In the accompanying drawings:

[0024] Figure 1 It is a front view of a circulating rake-turning sewage fermentation treatment device according to an embodiment of the present invention;

[0025] Figure 2 It is a side view of a circulating rake-turning sewage fermentation treatment device according to an embodiment of the present invention;

[0026] Figure 3 A top view of a circulating rake-turning sewage fermentation treatment device according to an embodiment of the present invention;

[0027] Figure 4 A schematic diagram of a material flow path according to an embodiment of the present invention;

[0028] Figure 5It is a partial front view of a circulating rake-turning sewage fermentation treatment device according to an embodiment of the present invention;

[0029] Figure 6 It is a partial side view of a circulating rake-turning sewage fermentation treatment device according to an embodiment of the present invention;

[0030] Figure 7 It is a top view of some components of the circulating rake-turning sewage fermentation treatment equipment according to an embodiment of the present invention;

[0031] Figure 8 It is a front view of the rake assembly of the first embodiment of the present invention;

[0032] Fig. 9 A side view of a rake assembly according to a first embodiment of the present invention;

[0033] Fig.10 The figure is a schematic diagram of the installation of the rake turning assembly and the chain according to the embodiment of the present invention.

[0034] Description of reference numerals:

[0035] 1-base frame, 2-material support platform, 3-feeding hole, 4-ventilation hole, 100-circulation power assembly, 101-chain, 102-extension shaft, 103-inner plate, 104-sprocket, 105-motor, 200-rake turning assembly, 201-first tooth seat, 202-first rake tooth, 203-second rake tooth, 204-second tooth seat, 205-rotating rake tooth. DETAILED DESCRIPTION

[0036] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific implementation disclosed below.

[0037] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements, or it can be a "transmission connection", that is, a power connection through various appropriate methods such as belt drive, gear drive or sprocket drive. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] See also Figures 1 to 10 The present invention provides a circulating rake-turning type sewage fermentation treatment equipment, wherein the circulating rake-turning type sewage fermentation treatment equipment comprises:

[0039] The fermentation bed comprises a base frame 1 and a plurality of material support platforms 2 connected to the base frame 1 and arranged at intervals from top to bottom, each layer of the material support platform 2 has a material discharge through hole 3 penetrating along the thickness direction of the corresponding material support platform 2;

[0040] The cyclic raking mechanism assembly includes a cyclic power assembly 100 and a raking assembly 200 connected to the cyclic power assembly 100 and capable of being driven by the cyclic power assembly 100 to cyclically move around the odd-numbered material support platform 2 or the even-numbered material support platform 2 in the multi-layer material support platform 2, thereby being able to drive the raking assembly 200 to perform raking operations on the adjacent two-layer material support platforms 2 in the opposite direction, for example, see Figure 1 , the rake turning assembly 200 moves in a clockwise circular motion around the odd-numbered layers (1st layer, 3rd layer, 5th layer, ...) of the multi-layer material support platform 2, and the rake turning assembly 200 can turn over and rake the materials on the 1st layer of material support platform 2 to the right above the 1st layer of material support platform 2, and when the rake turning assembly 200 continues to move to a position between below the 1st layer of material support platform 2 and above the 2nd layer of material support platform 2, the rake turning assembly 200 can turn over and rake the materials on the 2nd layer of material support platform 2 to the left above the 2nd layer of material support platform 2, and the present case preferably equips the odd-numbered layers of material support platform 2 with a rake turning assembly 200 that moves around them in a circular motion, but for the even-numbered layers of material support platform 2 It is obviously also possible to equip the support platform 2 with a raking component 200 that circulates around it. The circulating raking type sewage fermentation treatment equipment provided by the present invention can, through the circulating movement of the raking component 200, allow the sewage (feces) and other materials on the material support platform 2 to fully contact with the air through multiple raking and multiple falling processes in a limited vertical space (upper and lower space). The materials are broken up and turned over multiple times, which is conducive to the rapid volatilization of moisture, accelerates the drying effect of the materials, and significantly improves the sewage fermentation efficiency. The materials are not easy to become compacted, and the aerobic fermentation effect is greatly improved. A good aerobic fermentation effect can be guaranteed without the need for high-pressure forced ventilation equipment, and the ventilation energy consumption is significantly reduced.

[0041] The specific structural form of the circulating power component 100 provided by the present invention is not subject to special restrictions. Any method of driving the rake component 200 to circulate around the odd-numbered material support platform 2 or the even-numbered material support platform 2 in the multi-layer material support platform 2 will fall within the protection scope of the present invention. For example, the circulating power component 100 can be any driving device that can be suspended in the air, similar to a micro or small aircraft, etc. The rake component 200 is installed on a small aircraft and can circulate around the material support platform 2 in a suspended manner. For example, in a preferred embodiment of the present invention, the circulating power component 100 includes circulating power components arranged at intervals around the odd-numbered material support platform 2 or the even-numbered material support platform 2 in the multi-layer material support platform 2. The rake turning assembly 200 can be installed on the circulating power carrier in a cyclical manner. The circulating power carrier can specifically be a conveyor belt, a crawler track, a chain 101 or other structures, and the present invention preferably uses the chain 101. At this time, the circulating power assembly 100 also includes a chain driving mechanism for driving the chain 101. The chains 101 are arranged in pairs around the corresponding material support platform 2, and the two chains 101 around the corresponding material support platform 2 are spaced from each other, and the corresponding rake turning assembly 200 is arranged between the two chains 101. The sides of the two chains 101 facing each other are connected to the inner plate 103 through the extension shaft 102, and the two ends of the rake turning assembly 200 are respectively connected to the inner plates 103 corresponding to the two chains 101. In addition, the chain drive mechanism includes a sprocket 104 connected to the corresponding chain 101 and a motor 105 connected to the sprocket 104. Of course, the motor 105 and the sprocket 104 can also be connected through a reducer and some other transmission components. In addition, the radius of the sprocket 104 is larger than the maximum height of the rake turning assembly 200 protruding from the upper side of the chain 101 and the maximum height protruding from the lower side of the chain 101, so that the rake turning assembly 200 has a suitable working space, and the spacing between two adjacent layers of material support platforms 2 is larger than the radius of the sprocket 104.

[0042] The specific structural form of the raking assembly 200 provided by the present invention is not subject to special restrictions. As long as the device can rake the material on the material support platform 2 below it, it will fall into the protection scope of the present invention. The raking assembly 200 provided by the present invention includes a first tooth seat 201 that can be circulated and mounted on a circulating power carrier, and a first rake tooth 202 and a second rake tooth 203 that are mounted on the first tooth seat 201 and extend away from each other in the up and down directions. In this way, first, the first rake tooth 202 is on the top and the second rake tooth 203 is on the bottom, and the second rake tooth 203 can perform raking operations on the first layer of material support platform 2. When the raking assembly 200 moves to the bottom of the first layer of material support platform 2 and above the second layer of material support platform 2, the second rake tooth 203 is on the top and the first rake tooth 202 is on the bottom, and the first rake tooth 202 can perform raking operations on the second layer of material support platform 2. Another raking assembly 200 provided by the present invention includes a second tooth seat 204 which is cyclically mounted on a circulating power carrier and a rotating rake tooth 205 which is rotatably mounted on the second tooth seat 204. These two raking assemblies 200 can be applied to the present invention either individually or in combination. When used in combination, any layout combination such as front and back, left and right, up and down, etc. along the raking direction according to actual needs will fall within the protection scope of the present invention.

[0043] See also Figure 3 In the present invention, preferably, the material discharge holes 3 are arranged in multiple rows on the material support platform 2 along the travel direction of the rake assembly 200. If there are 4 rows, the following can be formed: Figure 4 The 4 material falling paths shown are as follows. Figure 4 The four falling paths are not limited to being performed simultaneously. If a chain 101 is equipped with a rake assembly 200 above the corresponding material support platform 2 and a rake assembly 200 below the corresponding material support platform 2, the four falling paths are performed one by one. Of course, if a chain 101 is equipped with four rake assemblies 200 above the corresponding material support platform 2 and four rake assemblies 200 below the corresponding material support platform 2, the four falling paths can be performed simultaneously. In addition, a ventilating hole 4 is preferably provided between two adjacent rows of material discharge holes 3 (to ventilate the material on the material support platform 2, and the material does not fall from the ventilating hole 4). The material support platform 2 can be a wire mesh or a perforated plate structure.

[0044] Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A circulating rake-turning sewage fermentation treatment equipment, characterized in that: The circulating rake-turning type sewage fermentation treatment equipment comprises: A fermentation bed, the fermentation bed comprising a base frame and a plurality of material support platforms connected to the base frame and arranged at intervals from top to bottom, each layer of the material support platforms having a material discharge through hole penetrating along the thickness direction of the corresponding material support platform; A cyclic raking mechanism assembly, the raking mechanism assembly comprising a cyclic power assembly and a raking assembly connected to the cyclic power assembly and capable of being driven by the cyclic power assembly to cyclically move around the odd-numbered material support platforms or the even-numbered material support platforms among the multi-layer material support platforms, so that one raking assembly cyclically moves to both rake the materials on the two adjacent material support platforms and rake the materials on the two adjacent material support platforms in the opposite direction; The circulating power assembly comprises a circulating power carrier arranged at intervals around the odd-numbered material support platforms or the even-numbered material support platforms among the multi-layer material support platforms, the rake assembly is cyclically mounted on the circulating power carrier, the circulating power carrier is a chain, and the circulating power assembly further comprises a chain driving mechanism for driving the chain; The rake assembly includes a first tooth seat movably mounted on the circulating power carrier, and first and second rake teeth mounted on the first tooth seat and extending away from each other in the up-down direction.

2. The circulating raking type sewage fermentation treatment equipment according to claim 1 is characterized in that: The rake assembly comprises a second tooth seat cyclically mounted on the circulating power carrier and a rotating rake tooth rotatably mounted on the second tooth seat.

3. The circulating rake-turning sewage fermentation treatment equipment according to claim 1 is characterized in that: The chains are arranged in pairs around the corresponding material support platforms, and the two chains around the corresponding material support platforms are spaced apart from each other, the corresponding rake turning assembly is arranged between the two chains, and an inner side plate is installed on each side of the two chains facing each other, and the two ends of the rake turning assembly are respectively connected to the inner side plates corresponding to the two chains.

4. The circulating raking type sewage fermentation treatment equipment according to claim 1 is characterized in that: The chain drive mechanism includes a sprocket connected to the corresponding chain and a motor drivingly connected to the sprocket, the radius of the sprocket is larger than the maximum height of the rake assembly protruding from the upper side of the chain and the maximum height protruding from the lower side of the chain, and the spacing between two adjacent layers of material support platforms is larger than the radius of the sprocket.

5. The circulating raking type sewage fermentation treatment equipment according to any one of claims 1 to 4, characterized in that: The material discharge through holes are arranged in a plurality of rows on the material support platform along the travel direction of the rake assembly.

6. The circulating raking type sewage fermentation treatment equipment according to any one of claims 1 to 4, characterized in that: A ventilation through hole is arranged between two adjacent rows of material discharge through holes.

7. The circulating raking type sewage fermentation treatment equipment according to any one of claims 1 to 4, characterized in that: The material support platform is a wire mesh.

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