CN115152653B - Automatic feeding device with feed pre-digestion function and using method thereof - Google Patents

Abstract

An automatic feeding device mainly comprises a hopper (1) for storing feed; a trough (2) for holding and directly feeding animals; a pre-digestion device (3) for mixing feed with water and feed additives; and a frame (4) for fixedly mounting the hopper (1) and the predigestion device (3), characterized in that: the automatic feeding device is characterized in that the hopper (1) is positioned at the upper part of the automatic feeding device, the lower end of the hopper (1) is provided with a pre-digestion device (3), and the pre-digestion device (3) is also provided with an additive hopper (5) and a water inlet pipe (6) which are used for containing and adding feed additives respectively and are used for adding moisture into the pre-digestion device (3); the pre-digestion device (3) mainly comprises a pre-digestion device cover (3-1) and a pre-digestion device lower body (3-2), and a pre-digestion device sealing ring (3-4) for reinforcing sealing is arranged between the pre-digestion device cover (3-1) and the pre-digestion device lower body (3-2). The pre-digestion device has the beneficial effects that the pre-digestion device is convenient for pre-mixing digestion of feed and cleaning of the pre-digestion device (3).

Description

Automatic feeding device with feed pre-digestion function and using method thereof

technical field

The invention relates to the field of animal husbandry, in particular to an automatic feeding device.

Background technique

In recent years, through continuous research, it has been found that the feed conversion rate in pig farms can be significantly improved by pre-treating the feed. The reason is that the act of digesting the feed itself requires energy consumption. If the feed is pre-digested, it will be reduced. This part of energy consumption can be reduced, so that the utilization rate of energy in the feed can be improved, and the energy loss of animals when eating can be reduced.

There are some domestic patents on feeding, for example, the announcement number is CN210795037U, which discloses an automatic feeding device for quantitative feeding. Sliding grooves are symmetrically arranged on both sides inside the metering bin; a driving motor is fixed in the metering bin and the driving motor The rotating end of the cam is fixed with a cam, the upper part of the cam is a semi-circular sphere, and the lower part is a semi-elliptical sphere; a first connecting rod is arranged on the top of the cam; a second connecting rod is arranged on the lower part of the cam and the second A stopper is fixed below the two connecting rods; the width of the stopper is the same as the inner diameter of the discharge port of the metering bin, and a push rod mechanism is arranged at the bottom of the stopper. The automatic discharge device for quantitative blanking can quantitatively blank and discharge materials by setting the cam, the first connecting rod, the push rod mechanism and the drive motor; by setting the push rod mechanism, the second connecting rod can be automatically attached to the cam Bottom; by setting the control device, the rotation speed of the drive motor can be adjusted, thereby controlling the amount of clinker dropped each time. What it needs to solve is the problem of quantitative blanking.

For another example, the publication number is CN214385513U, which discloses that the utility model discloses a liquid pre-digestion feeding system for farms, which makes cleaning the trough more convenient and quick, and improves the practicality; The bottom of the warehouse is equipped with a multi-component material assembly, and the multi-group material troughs are respectively placed at the bottom of the multi-component material assembly; it also includes a first bearing, a U-shaped plate, a second bearing, a rotating rod, a sliding rod, a fixed plate and a spring , the left and right ends of the trough are provided with connecting rods, the left end of the left connecting rod is rotatably connected to the left end of the U-shaped plate through the first bearing, the right connecting rod is rotatably connected to the right end of the U-shaped plate through the second bearing, and the right The right end of the connecting rod on the side is fixedly connected with the left end of the rotating rod, the right end of the U-shaped plate is provided with a sliding hole, the right end of the sliding rod is connected with the left end of the bottom of the rotating rod, the left end of the sliding rod passes through the sliding hole and connected with the right end of the trough, the left end of the fixed plate is connected with the U-shaped The right end of the plate is connected, the rear end of the fixed plate is connected with the front end of the spring, and the rear end of the spring is connected with the front end of the bottom of the rotating rod. It mainly solves the problem of cleaning the pre-digestion unit, but its structure is relatively complicated.

Contents of the invention

The purpose of this application is to provide an automatic feeding device to solve the problem that the existing feeding device does not have a pre-digestion device, and can provide pre-digested feed according to the needs of feeding, especially to solve the problem of improving the pre-digested feed The mixing efficiency of water and feed in the production process, and the problem of making the feed difficult to form agglomerates.

In order to achieve the above object, the present invention adopts the following technical solutions:

An automatic feeding device mainly includes

Hopper (1), used for storing feed;

Manger (2), is used for holding feed and directly feeding animals;

A pre-digestion device (3), used for mixing, stirring and heating feed, water, and feed additives to produce pre-digested feed; and

The frame (4) is used for fixedly installing the hopper (1) and the pre-digestion device (3). Digestion device (3), the additive hopper (5) and water inlet pipe (6) that are used to contain and add feed additives are also respectively installed on the described pre-digestion device (3), are used for adding in the pre-digestion device (3) Moisture; described predigester (3) mainly comprises predigester cover (3-1) and predigester lower body (3-2), and described predigester cover (3-1) and predigester lower body (3 -2) A pre-digester sealing ring (3-4) for strengthening sealing is provided between them.

Further, the hopper controller (7), the additive controller (8), and the hopper interface (3-1-2) of the water inlet controller (9) are respectively connected to the pre-digester cover (3-1) , the additive interface (3-1-4) and the water inlet (3-1-5), the top middle part of the pre-digester cover (3-1) is provided with a pre-digester stirring device (3-5) for installation shaft interface (3-1-3), the lower end of the lower body of the pre-digester (3-2) is provided with

Feed discharge controller (10), used to control the discharge of pre-digested feed in the pre-digestion device (3);

The hopper controller (7), the additive controller (8), the water inlet controller (9) and the feed discharge controller (10) are respectively electrically connected with the general controller of the automatic feeding device.

Further, the outer side of the lower body (3-2) of the pre-digester is provided with a pre-digester insulation cover (3-3) for heating the pre-digester (3) or keeping the pre-digester (3) warm.

Further, the pre-digester cover (3-1) mainly includes a cover body (3-1-1), and the cover body (3-1-1) is provided with a shaft interface (3-1-3), which is used to Install the pre-digested material stirring device (3-5); the water inlet (3-1-5) is used to facilitate the stretching out of the waterline device (3-6), and the waterline device (3-6) is connected with the inlet The water controller (9) is connected.

Further, the water line device (3-6) mainly includes a water connection pipe (3-6-1), which is used to protrude from the water inlet (3-1-5) and communicate with the water inlet controller (9); and An annular ring water pipe (3-6-2) located inside the pre-digester cover (3-1), one end of the ring water pipe (3-6-2) communicates with the water receiving pipe (3-6-1), The other end is a closed end, and a plurality of branch pipes (3-6-3) are evenly distributed on the ring water pipe (3-6-2), and the end of the branch pipe (3-6-3) is provided with a nozzle (3- 6-4).

Further, one end of the branch pipe (3-6-3) is connected to the ring water pipe (3-6-2), and the other end is connected to the nozzle (3-6-4), and the branch pipe (3-6-3 ) mainly includes the branch pipe body (3-6-3-1), and the branch pipe snap ring (3-6-3-2) arranged on the branch pipe body (3-6-3-1), the branch pipe snap ring (3-6-3-1) -6-3-2) is an inverted cone, which is convenient for the nozzle (3-6-4) to snap on the branch pipe (3-6-3).

Further, the nozzle (3-6-4) mainly includes the nozzle body (3-6-4-1), and the nozzle boss (3-6-4-4), the nozzle boss (3-6- 4-4) Located on the top of the nozzle body (3-6-4-1), the nozzle boss (3-6-4-4) is evenly distributed with a plurality of curved water spray pipes opening obliquely outward ( 3-6-4-3), the lower end of the nozzle body (3-6-4-1) is provided with a nozzle snap ring (3-6-4-2), which is used to connect with the branch pipe snap ring (3-6- 3-2) Matching connection.

The hopper controller (7) mainly includes a controller body (7-1), and the middle part of the controller body (7-1) is provided with a controller connection for connecting the hopper (1) and the pre-digestion device (3). Head (7-2), in the middle of the controller connector (7-2), there is a controller valve (7-3) for controlling the opening and closing of the controller connector (7-2), the controller valve ( 7-3) The opening and closing are controlled by the master controller of the automatic feeding device.

The present invention also provides a method of using an automatic feeding device, the steps of which are as follows:

Step 1: Transport the powdery full-price compound feed from the outdoor silo to the hopper (1) in the automatic feeding device through the feed line;

Step 2: According to the number of pigs in the pen and the weight of the pigs, the daily feed intake is fed 3 times, and the weight of the feed that enters the pre-digestion device (3) through the hopper (1) is calculated each time, and the feed is added to the In the pre-digestion unit (3);

Step 3: Add tap water preheated to 40-45°C into the pre-digestion device (3) through the water inlet pipe (6) according to 3 times the weight of the added feed;

Step 4, add the predigestion function additive powder (mixture of enzyme and bacteria) by the 0.1% ratio of adding feed weight by storing in the additive hopper (5) in advance, by the additive controller (8) the internal energy of the additive hopper (5) The addition of additive powder in the predigestion unit (3);

Step 5: Stir and mix the water, feed, and additives in the pre-digestion device (3) through the pre-digestion material stirring device (3-5) for 5 minutes or more to obtain a feed precompound;

Step 6: The pre-compound of the feed is pre-digested in the pre-digestion device (3) for 8 hours to obtain a porridge-like feed;

Step 7: After reaching the time set in step 6, the automatic feeding device sends a feed intake signal through the master controller, opens the feed discharge controller (10) at the bottom of the pre-digestion device (3), and discharges the porridge feed into the trough ( 2), for pigs to eat;

Step 8: Close the feed discharge controller (10) after the porridge-like feed is discharged.

Further, step 9 is also included: when the pigs are out of the slaughterhouse, the pre-digester (3) is split into a pre-digester cover (3-1) and a pre-digester lower body (3-2), and the pre-digester ( 3) Thoroughly clean the inside, empty it, and keep it dry to avoid the breeding of bacteria, so that it can be used for the next pig feeding.

Its beneficial effect of the present invention is:

1. Through the pre-digestion device (3), the pre-digestion of feed can be realized, and the utilization rate of animal feed can be improved;

2. The pre-digestion device (3) is equipped with a heating and stirring device, which can improve the efficiency of feed pre-digestion;

3. The quantitative mixing of materials can be realized by connecting the hopper controller (7), additive controller (8) and water inlet controller (9) with the main controller;

4. The upper and lower split design of the pre-digestion unit (3) facilitates the cleaning of the pre-digestion unit (3);

5. The design of the waterline device (3-6) and the spray nozzle (3-6-4) on it not only facilitates the pre-mixed digestion of the feed, but also facilitates the cleaning of the pre-digestion device (3).

Description of drawings

Figure 1 Schematic diagram of the structure of the automatic feeding device

Figure 2 is a three-dimensional structure diagram of Figure 1

Fig. 3 is a schematic diagram of the structure after removing the frame (4) in Fig. 2

Figure 4 is an exploded view of Figure 3

Fig. 5 is the structural representation of hopper controller (7)

Figure 6 is an exploded view of Figure 5

Fig. 7 is the structural representation of pre-digestion unit (3)

Figure 8 is an exploded view of Figure 7

Fig. 9 is the structural representation of pre-digester lid (3-1)

Fig. 10 is a cross-sectional view of direction A in Fig. 8

Fig. 11 is the structural representation of waterline device (3-6)

Figure 12 is a schematic diagram of the connection structure of the branch pipe (3-6-3) and the nozzle (3-6-4)

Figure 13 is an exploded view of Figure 12

Fig. 14 is a cross-sectional view of direction B in Fig. 13

Fig. 15 is a schematic structural view of the nozzle (3-6-4)

Fig. 16 is a cross-sectional view along direction C in Fig. 15

Figure 17 is a perspective view of Figure 16

Fig. 18 is a schematic structural view of an automatic feeding device provided with a feed discharge controller (10)

Figure 19 is a schematic diagram of the three-dimensional structure of Figure 18

Hopper 1; trough 2; pre-digestion device 3; frame 4; additive hopper 5; water inlet pipe 6; hopper controller 7; additive controller 8; water inlet controller 9; feed discharge controller 10; controller body 7 -1; controller connector 7-2; controller valve plate 7-3; pre-digester cover 3-1; pre-digester lower body 3-2; pre-digester insulation cover 3-3; pre-digester sealing ring 3 -4; pre-digested material stirring device 3-5; water line device 3-6; cover body 3-1-1; hopper interface 3-1-2; shaft interface 3-1-3; additive interface 3-1-4 ; Water inlet 3-1-5; Motor 3-5-1; Bracket 3-5-2; Rotating shaft 3-5-3; Blade 3-5-4; -2; branch pipe 3-6-3; nozzle 3-6-4; branch pipe body 3-6-3-1; branch pipe snap ring 3-6-3-2; nozzle body 3-6-4-1; nozzle card Ring 3-6-4-2; Spray pipe 3-6-4-3; Nozzle boss 3-6-4-4.

Detailed ways

Embodiment one

In the livestock farm, there are various feeding devices to provide feed for animals, and the automatic feeding device provided by the invention is mainly used for storage and pre-digestion treatment of feed. As shown in Figure 1-4, the automatic feeding device includes a hopper (1), a trough (2), a pre-digestion device (3) and a frame (4), wherein the hopper (1) is located at the upper part, and a pre-digester is connected under it. Digestion device (3), the lower end of pre-digestion device (3) is connected with the manger (2) that is used for providing direct feeding to animal, and hopper (1) and pre-digestion device (3) are respectively fixedly installed on frame (4 )superior.

The additive hopper (5) and the water inlet pipe (6) are also connected to the pre-digestion unit (3), as shown in Figure 4, the hopper (1) is connected to the pre-digestion unit (3) through the hopper controller (7) , the additive hopper (5) is connected with the pre-digestion unit (3) through the additive controller (8), the water enters the pre-digestion unit (3) through the water inlet pipe (6), and the water inlet pipe (6) is controlled by the water inlet The device (9) communicates with the pre-digestion unit (3). The hopper controller (7), the additive controller (8) and the water inlet controller (9) have the same structure, and are all electrically connected to the general controller of the automatic feeding device, thereby realizing the control of the general controller to the hopper controller (7). , the on-off control of the additive controller (8) and the water inlet controller (9).

As shown in Figures 5 and 6, the hopper controller (7) mainly includes a controller body (7-1), and the middle part of the controller body (7-1) is provided for connecting the hopper (1) and the pre-digestion device (3 ) of the controller connector (7-2), a controller valve plate (7-3) for controlling the opening and closing of the controller connector (7-2) is provided in the middle of the controller connector (7-2), The opening and closing of the controller valve plate (7-3) is controlled by the general controller of the automatic feeding device.

As shown in Figure 7, the pre-digester (3) mainly includes a pre-digester cover (3-1) and a pre-digester lower body (3-2), and the pre-digester cover (3-1) is provided with a pre-digester Stirring device (3-5), is used for stirring in pre-digester device (3), is wrapped with pre-digester insulation cover (3-3) outside pre-digester lower body (3-2), is used for pre-digester The digestion unit (3) is heated, or the pre-digestion unit (3) is kept warm.

As shown in Figure 8, a pre-digester sealing ring (3-4) for strengthening sealing is also provided between the pre-digester cover (3-1) and the pre-digester lower body (3-2). A water line device (3-6) for cleaning the pre-digestion device (3) or adding moisture to the feed is also installed in the cover (3-1). Due to the split design of the pre-digester cover (3-1) and the lower body of the pre-digester (3-2), it is convenient to disassemble and clean the pre-digester (3) thoroughly, because the animals in the breeding process are not sensitive to the pens used. The house must be all in and all out, so as to block the spread of viruses and bacteria in the barn. The split design of the pre-digestion device (3) can thoroughly disinfect it, improve the rate of virus and bacteria killing in the barn, and reduce Risk of disease transmission.

As shown in Figure 9, the pre-digester cover (3-1) mainly includes a cover body (3-1-1), and a plurality of holes for feed and water intake on the cover body (3-1-1) In the middle, they are respectively the rotating shaft interface (3-1-3) used to install the pre-digested material stirring device (3-5), and the hopper interface (3-1-2) used to connect the hopper controller (7). For connecting the additive interface (3-1-4) of the additive controller (8), it is used to extend the water line device (3-6) out of the water inlet (3-1-5) communicated with the water inlet controller (9) ).

As shown in Figure 10, the pre-digested feed stirring device (3-5) mainly includes a motor (3-5-1) providing power, and a bracket (3-5-2) for installing the motor (3-5-1) ), is connected with rotating shaft (3-5-3) under motor (3-5-1), is provided with multiple groups of blades (3-5-4) for stirring on rotating shaft (3-5-3).

As shown in Figure 11, the water line device (3-6) mainly includes a water connection pipe (3-6-1) for extending out of the water inlet (3-1-5) and communicating with the water inlet controller (9), And the annular ring water pipe (3-6-2) that is positioned at pre-digester cover (3-1) inside, the ring water pipe (3-6-2) one end is connected with water receiving pipe (3-6-1), and the other One end is a closed end, and a plurality of branch pipes (3-6-3) are evenly distributed on the ring water pipe (3-6-2), and a nozzle (3-6-4) is arranged at the end of the branch pipe (3-6-3). ).

As shown in Figure 12-14, one end of the branch pipe (3-6-3) is connected to the ring water pipe (3-6-2), and the other end is connected to the nozzle (3-6-4). 6-3) It mainly includes the branch pipe body (3-6-3-1), and the branch pipe snap ring (3-6-3-2) arranged on the branch pipe body (3-6-3-1), the branch pipe snap ring ( 3-6-3-2) is in the shape of an inverted cone, which is convenient for the nozzle (3-6-4) to be clipped on the branch pipe (3-6-3).

As shown in Figure 15-17, the nozzle (3-6-4) mainly includes the nozzle body (3-6-4-1), the nozzle boss (3-6-4-4), the nozzle boss (3- 6-4-4) Located on the top of the nozzle body (3-6-4-1), there are evenly distributed a number of curved water spray pipes opening obliquely outward on the nozzle boss (3-6-4-4) (3-6-4-3), there is a nozzle snap ring (3-6-4-2) inside the lower end of the nozzle body (3-6-4-1), which is used to connect with the branch pipe snap ring (3-6- 3-2) Matching connection. Through the joint installation of the branch pipe (3-6-3) and the nozzle (3-6-4), when the water flows from the ring water pipe (3-6-2) through the branch pipe (3-6-3) into the nozzle (3- 6-4) After the inside, since the opening of the water spray pipe (3-6-4-3) is bent outward, under the reaction of the water, the nozzle (3-6-4) will rotate, so that the water will be turned outward It is sprayed in a scattered shape, so that on the one hand, when cleaning the pre-digestion device (3), the cleaning surface of the water effect can be increased; The mixing efficiency makes the feed difficult to agglomerate in the pre-digester (3), which is beneficial to the mixing of feed and additives.

As shown in Fig. 18-19, in order to control the discharge of the feed in the pre-digester (3), the bottom opening of the pre-digester (3) is also provided with a feed discharge controller (10) electrically connected to the general controller for controlling Discharge in the pre-digester (3).

When in use, first store the feed in the hopper (1), and before feeding the animals, the feed needs to be pre-digested, and the hopper controller (7) is controlled by the master controller to open the controller valve (7- 3), put in a certain amount of feed, while putting in the feed, also open the additive controller (8), put in the corresponding amount of feed additive, and at the same time, also open the water inlet controller (9), through the water inlet pipe (6) Put a corresponding amount of water into the pre-digestion unit (3), the weight control of the above-mentioned feed, additives, and water, can be installed on the weight sensor on the hopper (1) and the additive hopper (5), and install The flow meter on the water inlet pipe (6) sends the weight signals of various ingredients to the master controller, and the corresponding weight of feed and additives can also be poured into the hopper (1) and the additive hopper (5) in advance, and then mixed to flow in the corresponding weight of water. During this process, the feed, additives, and water are fully mixed through the continuous stirring of the pre-digester stirring device (3-5). 3) Heating, keeping the pre-digestion device (3) at a suitable temperature, improving the decomposition and digestibility of the feed by the enzyme in the additive, and also keeping the feed at a certain temperature when the animal eats it, improving the palatability of the feed. After the feed is fully pre-digested in the pre-digester (3), the feed is dropped into the trough (2) through the opening at the lower end of the lower body of the pre-digester (3-2). In order to facilitate the time control of feed falling, a feed discharge controller (10) with the same structure as the hopper controller (7) can also be installed at the opening of the lower end of the pre-digestion device (3), and the valve is connected with the automatic feeding device. The master controller is electrically connected.

Embodiment two

A method for using the automatic feeding device in Embodiment 1, where the animals mainly refer to pigs, and when using the automatic feeding device, the specific method steps are as follows:

Step 1: Transport the powdery full-price compound feed from the outdoor silo to the hopper (1) in the automatic feeding device through the feed line;

Step 2: According to the number of pigs in the pen and the weight of the pigs, the daily feed intake is fed 3 times, and the weight of the feed that enters the pre-digestion device (3) through the hopper (1) is calculated each time, and the feed is added to the In the pre-digestion unit (3);

Step 3: Add tap water preheated to 40-45°C into the pre-digestion device (3) through the water inlet pipe (6) according to 3 times the weight of the added feed;

Step 4, add the predigestion function additive powder (mixture of enzyme and bacteria) by the 0.1% ratio of adding feed weight by storing in the additive hopper (5) in advance, by the additive controller (8) the internal energy of the additive hopper (5) The addition of additive powder in the predigestion unit (3);

Step 5: Stir and mix the water, feed, and additives in the pre-digestion device (3) through the pre-digestion material stirring device (3-5) for 5 minutes or more to obtain a feed precompound;

Step 6: The pre-compound of the feed is pre-digested in the pre-digestion device (3) for 8 hours to obtain a porridge-like feed;

Step 7: After reaching the time set in step 6, the automatic feeding device sends a feed intake signal through the controller, opens the feed discharge controller (10) at the bottom of the pre-digestion device (3), and discharges the porridge feed into the trough (2 ) for pigs to eat;

Step 8: Close the feed discharge controller (10) after the porridge-like feed is discharged;

Step 9: Repeat steps 2 to 8;

Step 10: When the pigs are out of the slaughterhouse, thoroughly clean the inside of the pre-digestion device (3), empty it, keep it dry, and avoid the breeding of bacteria, so that it can be used for the next pig feeding.

Although some specific embodiments have been illustrated and described above to illustrate and describe the present invention, it does not mean that the present invention is limited to the various details therein. On the contrary, various modifications may be made in various details within the scope and range equivalent to the claims without departing from the spirit of the invention.

Claims (7)

1. An automatic feeding device with feed predigestion function mainly comprises

A hopper (1) for storing feed;

a trough (2) for holding feed and feeding animals directly;

the pre-digestion device (3) is used for mixing, stirring and heating the feed, water and feed additives to produce pre-digested feed; and

frame (4) for fixed mounting hopper (1) and predigestion device (3), its characterized in that: the automatic feeding device is characterized in that the hopper (1) is positioned at the upper part of the automatic feeding device, the lower end of the hopper (1) is provided with a pre-digestion device (3), and the pre-digestion device (3) is also provided with an additive hopper (5) and a water inlet pipe (6) which are used for containing and adding feed additives respectively and are used for adding moisture into the pre-digestion device (3); the pre-digestion device (3) mainly comprises a pre-digestion device cover (3-1) and a pre-digestion device lower body (3-2), wherein a pre-digestion device sealing ring (3-4) for enhancing sealing is arranged between the pre-digestion device cover (3-1) and the pre-digestion device lower body (3-2);

a waterline device (3-6) is arranged in the pre-digester cover (3-1), and the waterline device (3-6) mainly comprises a water receiving pipe (3-6-1) which is used for extending out of the water inlet (3-1-5) and is communicated with a water inlet controller (9); and a ring-shaped annular water pipe (3-6-2) positioned in the pre-digester cover (3-1), one end of the annular water pipe (3-6-2) is communicated with the water receiving pipe (3-6-1), the other end is a closed end, a plurality of branch pipes (3-6-3) are uniformly distributed on the annular water pipe (3-6-2), the tail end of the branch pipe (3-6-3) is provided with a spray head (3-6-4), one end of the branch pipe (3-6-3) is connected with the annular water pipe (3-6-2), the other end of the branch pipe is connected with the spray head (3-6-4), the branch pipe (3-6-3) mainly comprises a branch pipe body (3-6-3-1), a clamp ring (3-6-3-2) arranged on the branch pipe body (3-6-3-1), the clamp ring (3-6-3-2) is in an inverted cone shape, the spray head (3-6-4) is conveniently clamped on the branch pipe (3-6-3), the spray head (3-6-4) mainly comprises the spray head (3-6-4) and the spray head (3-4-4), the novel feed sprayer is characterized in that the spray head boss (3-6-4-4) is positioned at the top of the spray head body (3-6-4-1), a plurality of spray pipes (3-6-4-3) which are bent and open outwards are uniformly distributed on the spray head boss (3-6-4-4) and used for increasing the mixing surface of water and feed and improving the mixing efficiency of the water and the feed when the feed is pretreated, and a spray head clamping ring (3-6-4-2) is arranged in the lower end of the spray head body (3-6-4-1) and used for being matched and connected with the branch pipe clamping ring (3-6-3-2).

2. An automatic feeding device according to claim 1, wherein the pre-digester cover (3-1) is further connected with a hopper controller (7), an additive controller (8), a hopper interface (3-1-2), an additive interface (3-1-4) and a water inlet (3-1-5) of a water inlet controller (9) respectively, a rotating shaft interface (3-1-3) for installing a pre-digester stirring device (3-5) is arranged in the middle of the top end of the pre-digester cover (3-1), and a feed discharge controller (10) is arranged at the lower end of the pre-digester lower body (3-2) and used for controlling the discharge of pre-digested feed in the pre-digester (3);

the hopper controller (7), the additive controller (8), the water inlet controller (9) and the feed discharge controller (10) are respectively and electrically connected with a main controller of the automatic feeding device.

3. An automatic feeding device according to claim 2, characterized in that a pre-digester insulation jacket (3-3) for heating the pre-digester (3) or for insulating the pre-digester (3) is arranged outside the lower body (3-2).

4. An automatic feeding device according to claim 3, wherein the pre-digester cover (3-1) mainly comprises a cover body (3-1-1), and a rotating shaft interface (3-1-3) is arranged on the cover body (3-1-1) and is used for installing a pre-digester material stirring device (3-5); the water inlet (3-1-5) is used for facilitating the water line device (3-6) to extend out, and the water line device (3-6) is communicated with the water inlet controller (9).

5. An automatic feeding device according to any one of claims 2-4, wherein the hopper controller (7) mainly comprises a controller body (7-1), a controller connector (7-2) for connecting the hopper (1) and the predigestion device (3) is arranged in the middle of the controller body (7-1), a controller valve plate (7-3) for controlling the opening and closing of the controller connector (7-2) is arranged in the middle of the controller connector (7-2), and the opening and closing of the controller valve plate (7-3) are controlled by a main controller of the automatic feeding device.

6. A method of using an automatic feeding device with feed predigestion according to claim 5, comprising the steps of:

step one: powder complete compound feed is conveyed into a hopper (1) in an automatic feeding device from an outdoor feeding tower through a stockline;

step two: according to the number of pigs in the fence and the weight of the pigs, feeding the feed intake every day for 3 times, calculating the weight of the feed entering the pre-digestion device (3) through the hopper (1) every time, and adding the feed into the pre-digestion device (3);

step three: adding tap water preheated to 40-45 ℃ into the pre-digestion device (3) through a water inlet pipe (6) according to 3 times of the weight of the added feed;

adding pre-digestion function additive powder according to the proportion of 0.1% of the weight of the added feed, wherein the pre-digestion function additive powder is a mixture of enzymes and bacteria, and is stored in an additive hopper (5) in advance, and the additive powder in the additive hopper (5) is added into a pre-digestion device (3) through an additive controller (8);

step five: stirring and mixing water, feed and additive powder with pre-digestion function in the pre-digestion device (3) for 5 minutes or more by a pre-digestion material stirring device (3-5) to obtain a pre-compound of the feed;

step six: the feed precondensate is predigested in a predigesting device (3) for 8 hours to obtain porridge-like feed;

step seven: after the time set in the step six is reached, the automatic feeding device sends out a feeding signal through the master controller, a feed discharge controller (10) at the bottom of the pre-digestion device (3) is opened, porridge-shaped feed is discharged into the feeding trough (2) and is fed by pigs;

step eight: after the porridge-like feed is discharged completely, the feed discharge controller (10) is closed.

7. The method of using an automatic feeding apparatus with a feed predigestion function according to claim 6, further comprising the step of: when the pig herd goes out of the fence and is in a blank, the pre-digestion device (3) is split into a pre-digestion device cover (3-1) and a pre-digestion device lower body (3-2), the interior of the pre-digestion device (3) is thoroughly cleaned, emptied and kept dry, and bacteria are prevented from breeding for later use when pigs are fed.

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