CN107176858A - A kind of wet device of pre fermentation stirring control for litter compost - Google Patents

Abstract

The invention discloses a pre-fermentation stirring humidity control device for fallen leaf composting. The device is composed of an agitator, a support rod, a water spray rod and a baffle. When energized, the agitator drives the main rotating rod to rotate clockwise, and the main rotating rod drives the support rod, water spray rod and baffle to rotate to play a stirring role. The main rotating rod, the support rod and the water spray rod are all hollow and communicated, and the inside is filled with water, and the water spray rod is provided with a nozzle. There is a humidity sensor on the support rod, which is electrically connected to the electric control valve on the main rotating rod. When the ambient humidity is lower than the preset humidity, the humidity sensor controls the valve to open through the electrical signal, and the nozzle of the water spray rod starts to spray water to increase the humidity. To the preset value, close the valve. The device combines stirring and humidity control, saves materials and is easy to operate.

Description

A pre-fermentation stirring humidity control device for leaf composting

technical field

The invention belongs to the field of fallen leaf composting, in particular to a pre-fermentation stirring humidity control device for fallen leaf composting.

Background technique

As the awareness of environmental protection continues to penetrate into the hearts of the people, people's occupation of landscaping in the city is increasing day by day. my country has a vast territory, and at the turn of autumn and winter, collecting and processing urban fallen leaves is a heavy task, which takes up a large amount of financial expenditure; on the other hand, most urban fallen leaves are eventually incinerated, polluting the environment.

In order to reduce the manpower and material resources of urban fallen leaves, reduce carbon emissions, and recycle and reuse organic matter in fallen leaves, fallen leaf composting technology has made great progress. However, the amount of fallen leaves in cities is huge, and the density of fallen leaves before fermentation is small and takes up a lot of space. Pre-fermentation can destroy the fiber structure of fallen leaves and make them close to granular, reduce the fermentation volume, and improve the fermentation efficiency.

In the leaf composting process, it is often necessary to accurately control the humidity and oxygen content in the fermentation process. If the humidity is too low during the fermentation process, the fermentation efficiency will be greatly reduced; if the humidity is too high, the ventilation effect will be poor, causing spoilage bacteria to breed and produce odor. If the oxygen content is too low, anaerobic fermentation will be carried out, and by-products and harmful substances will be produced, resulting in odor.

The humidity control device of the existing aerobic fermentation device is often separated from the stirring device, which makes the device cost too high, occupies too much space, is difficult to disassemble, and is complicated to operate.

Contents of the invention

Aiming at the shortcomings of the above devices, the present invention provides a pre-fermentation stirring and humidity control device suitable for aerobic composting with simple structure, convenient operation and accurate humidity control.

To achieve the above object, the present invention adopts the following technical solutions:

A pre-fermentation stirring humidity control device for fallen leaf composting, including a water inlet, a main rotating rod, a support rod, a water spray rod, a baffle, a rib plate, an agitator and a motor;

The agitator is connected with the main rotating rod, and a support rod is arranged on the side of the main rotating rod, and a water spray rod is arranged on the support rod, and a hole is arranged on the water spray rod, and the baffle plate passes through The ribs are connected to the water spray rod; the top of the main rotating rod is provided with a water inlet, the main rotating rod, the support rod and the water spray rod are all hollow and connected, and the bottom of the main rotating rod is sealed; the bottom of the agitator is set There are motors.

Preferably, it also includes an electric control valve, a humidity sensor and a signal processor; the water inlet is provided with an electric control valve; the electric control valve is connected to the signal processor and the humidity sensor in sequence, and the humidity sensor is connected to the pole electrical connection.

Preferably, the water inlet is connected to the water inlet pipe through an internal thread structure. The water inlet provided on the top of the main rotating rod is connected to the water inlet pipe through the internal thread structure. The water inlet pipe is a normally open water pipe, which gives the device a certain water pressure, so that the water sprayed by the water spray rod is radial, and the humidification is more uniform. The water inlet can also be connected with fermentation liquid, and the fermentation liquid can be evenly added to the material to improve the fermentation efficiency.

Preferably, the support rods are provided with 1 to 3 layers, with a total of 4 to 12 rods. The two rods in each layer are distributed at 90 degrees. The radius on one side of the swivel rod is small.

Preferably, the baffle is in a semi-cylindrical shape, the central axis of the baffle is at the same position as the water spray rod, and the plane formed by the support rod and the water spray rod is in the same plane as the cut surface of the baffle. The support rod has a frustum-shaped structure, with a large radius on the side connected to the main rotating rod, and a small radius on the side away from the main rotating rod. On the one hand, the smaller the radius, the higher the water pressure, to balance the pressure head lost due to resistance at the far end , so that the spray rod can spray water smoothly; on the other hand, the closer it is to the main rotating rod, the greater the bending moment, and thickening ensures the strength of the device and prevents it from breaking. On the one hand, it can play the role of increasing the stirring area, on the other hand, it can protect the water spray rod and prevent the water spray rod from being blocked.

Preferably, the spray rod is provided with holes, the holes are located on the opposite side of the spray rod to the baffle, arranged in three rows evenly and densely, and the holes are not higher than the baffle.

Preferably, the agitator is powered by a motor to drive the main rotating rod to rotate; the rotating direction is opposite to the opening of the spray rod.

Preferably, the water spray rods are evenly distributed under the poles, and the distance between the two water spray rods is greater than the diameter of the baffle.

Preferably, the main rotating rod is provided with an electric control valve, and the support rod is provided with a humidity sensor, and the two are electrically connected. Humidity sensors are symmetrically distributed on two layers of poles, two in each layer, to achieve accurate humidity signals in a wider range. When the humidity detected by two or more humidity sensors is lower than the set humidity, the electrical signal is sent to the signal processor, and the signal processor controls the valve to open, and the water spray rod sprays water under the action of water pressure, and the humidity increases When the humidity is set, the humidity sensor transmits an electrical signal to the signal processor to control the valve to close, and the spray rod stops spraying water, so as to achieve the purpose of automatically controlling the humidity.

Compared with existing devices, the present invention has the following advantages:

1. Accurate humidity control, automatic control, the humidity sensor converts the humidity signal in the device into an electrical signal to control the switch of the electronic control valve, thereby controlling the opening and closing of the humidifying device, reducing the labor burden and improving accuracy.

2. Combining the stirring device with the humidity control device greatly saves the material cost of the device, saves space and makes the device simpler.

3. The pre-fermentation speed is fast, which can quickly reduce the volume of fermentation raw materials and save the space cost of further fermentation.

Description of drawings:

Figure 1 is a schematic structural diagram of a stirring and humidity control device for composting

Fig. 2 is a schematic diagram of a spray hole;

Fig. 3 is a schematic diagram of humidity control;

Fig. 4 is a water flow diagram;

Fig. 5 is a material flow diagram;

Fig. 6 is the schematic diagram of baffle plate and rib;

Figure 7 is a schematic diagram of the main rod and the strut.

The components in the figure are as follows: water inlet 1, main rotating rod 2, electric control valve 3, humidity sensor 4, support rod 5, water spray rod 6, baffle plate 7, rib plate 8, agitator 9, motor 10, signal processing Device 11.

specific embodiment

The present invention will be further described in detail below in conjunction with specific examples, but the embodiments of the present invention are not limited thereto, and for process parameters not specifically indicated, conventional techniques can be referred to.

As shown in Figures 1 to 7, a pre-fermentation stirring humidity control device for leaf composting includes a water inlet 1, a main rotating rod 2, a support rod 5, a water spray rod 6, a baffle plate 7, a rib plate 8, Stirrer 9 and motor 10; The stirrer 9 is connected with the main rotating rod 2, the side of the main rotating rod 2 is provided with a pole 5, the pole 5 is provided with a water spray rod 6, and the The spray rod 6 is provided with a hole, and the baffle plate 7 is connected with the spray rod 6 through a rib plate 8; the top of the main rotating rod 2 is provided with a water inlet 1, and the main rotating rod 2, the pole 5 and The water spray rods 6 are all hollow and connected, and the bottom of the main rotating rod 2 is sealed; a motor 10 is arranged below the agitator 9 . The present invention also includes an electric control valve 3, a humidity sensor 4 and a signal processor 11; the water inlet 1 is provided with an electric control valve 3; the electric control valve 3 is connected with the signal processor 11 and the humidity sensor 4 in sequence, The humidity sensor 4 is electrically connected to the pole 5 . The water inlet 1 is connected to the water inlet pipe through an internal thread structure. The support rods 5 are provided with 1 to 3 layers, 4 to 12 in total, and two pairs of the support rods 5 in each layer are distributed at 90 degrees, which is a conical structure, and the radius of the side connected to the main rotating rod 2 is large, away from the main rotating rod The radius of one side of the rotating rod 2 is small. The baffle 7 is semi-cylindrical, the central axis of the baffle 7 is at the same position as the water spray rod 6 , and the plane formed by the strut 5 and the water spray rod 6 is in the same plane as the cut surface of the baffle 7 . The water spray bar 6 is provided with holes, and the holes are located on the opposite side of the water spray bar 6 to the baffle plate 7, arranged in three rows evenly and densely, and the holes are not higher than the baffle plate. The agitator 9 is powered by the motor 10 to drive the main rotating rod 2 to rotate; the direction of rotation is the opposite direction of the hole on the spray rod 6 . The water spray rods 6 are evenly distributed under the poles, and the distance between the two water spray rods is greater than the diameter of the baffle.

As shown in Figure 4, when the device is in use, the material is poured from the top opening, and the fermentation broth can be poured directly or sprayed in through the water inlet 1. The water inlet 1 on the top of the main pole is connected with the running water pipe to provide humidification water, which is sprayed out from the water spray port. An electronically controlled valve 3 is provided at the joint between the main rod 2 and the support rod 5 , and is electrically connected with the signal processor 11 and the humidity sensor 4 . Humidity sensors 4 are symmetrically arranged on the two-layer poles, and the humidity signal is transmitted to the signal processor 11. If the humidity is lower than the preset value, the electronic control valve is controlled to open, and the water spray rod sprays water; if the humidity is higher than the preset value, the control The electric control valve is closed, and the water spray bar 6 stops spraying water. The device is powered by the motor 10, driven by the agitator 9, it rotates in the opposite direction to the baffle plate 7, on the one hand to stir the material, and on the other hand to protect the spray rod from being blocked. The device has a total diameter of 2m, a total height of 4m, a total volume of 12.56 cubic meters, and an effective volume of about 9 cubic meters. It can process about 7 tons of fallen leaves each time.

In summary, the stirring and temperature control device realizes the simplification of the device, saves material and space costs, improves the humidity control accuracy, improves the fermentation efficiency, and reduces the space required for further fermentation.

It should be understood that the above detailed description of the technical solution of the present invention with the aid of optimized embodiments is illustrative rather than restrictive, and it cannot be considered that the specific implementation of the present invention is limited thereto. For those of ordinary skill in the technical field of the present invention That is to say, on the premise of not departing from the concept of the present invention, any modification to the technical solutions recorded in each embodiment, or equivalent replacement of some of the technical features shall be regarded as belonging to the patent protection determined by the claims submitted in the present invention. scope.

Claims (8)

1. a kind of wet device of pre fermentation stirring control for litter compost, it is characterised in that：Including water inlet（1）, main swingle （2）, pole（5）, spray boom（6）, baffle plate（7）, gusset（8）, agitator（9）And motor（10）；

The agitator（9）With main swingle（2）Connection, the main swingle（2）Side on be provided with pole（5）, it is described Pole（5）On be provided with spray boom（6）, and the spray boom（6）On be provided with hole, the baffle plate（7）Pass through gusset（8）With spray Water bar（6）Connection；The main swingle（2）Top be provided with water inlet（1）, the main swingle（2）, pole（5）And water spray Bar（6）It is hollow connection, wherein main swingle（2）Bottom seal；The agitator（9）Lower section is provided with motor（10）.

2. wet device is controlled in the pre fermentation stirring for litter compost according to claim 1, it is characterised in that：Also include automatically controlled Valve（3）, humidity sensor（4）And signal processor（11）；The water inlet（1）On be provided with electric control valve（3）；The electricity Control valve（3）With signal processor（11）, humidity sensor（4）It is sequentially connected with, the humidity sensor（4）With pole（5）Electricity Property connection.

3. the pre fermentation stirring control wet device according to claim 1 for litter compost, it is characterised in that：The water inlet Mouthful（1）It is connected by female thread structure with water inlet pipe.

4. the pre fermentation stirring control wet device according to claim 1 for litter compost, it is characterised in that：The pole （5）Provided with 1 to 3 layer, totally 4 to 12, every layer of pole two-by-two（5）Between it is each be distributed into 90 degree, be truncated cone-shaped structure, with main swingle （2）Side radius is connected big, away from main swingle（2）Side radius is small.

5. the pre fermentation stirring control wet device according to claim 1 for litter compost, it is characterised in that：The baffle plate （7）For semi-circular cylindrical, the baffle plate（7）Axis and the spray boom（6）In same position, pole（5）With spray boom （6）The plane and baffle plate of composition（7）Tangent plane be in same plane.

6. a kind of wet device of pre fermentation stirring control for litter compost according to claim 1, it is characterised in that：It is described Spray boom（6）Hole is provided with, the hole position is in spray boom（6）Upper and baffle plate（7）The opposite side of connection, Cheng Sanlie is uniformly intensive Arrangement, the hole is not higher than baffle plate.

7. a kind of wet device of pre fermentation stirring control for litter compost according to claim 1, it is characterised in that：It is described Agitator（9）By motor（10）Power supply, drives main swingle（2）Rotation；Direction of rotation is spray boom（6）The negative side of upper perforate To.

8. the pre fermentation stirring control wet device according to claim 1 for litter compost, it is characterised in that：The water spray Bar（6）It is uniformly distributed in below pole, the distance between two spray booms are more than baffle plate diameter.