Pre-fermentation device

Abstract

The utility model relates to the technical field of pig feed processing, and discloses a pre-fermentation device which comprises a fermentation tank, a feed port is fixedly mounted on the left side of the upper surface of the fermentation tank, a discharge port is fixedly mounted at the bottom end of the right side surface of the fermentation tank, and a stirring and heating mechanism is arranged in the fermentation tank. According to the pre-fermentation device, an input through hole, an output through hole, a circulating channel, a heating box, an electric heating pipe, a connecting pipe and an air pump are matched, so that a stirring frame can be heated, and fermentation raw materials can be fully heated and stirred by the stirring frame, so that the fermentation rate of the raw materials is increased; meanwhile, the two air pumps are alternately started, so that heating is more sufficient and uniform, and the situation that the temperature at the input through hole is always higher than that at the output through hole due to single air inlet from the input through hole and air outlet from the output through hole, so that uniform heating and fermentation efficiency are influenced is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of pig feed processing, in particular to a pre-fermentation device. Background Art

[0002] With the development of modern pig farming, bio-fermented feed for pigs has been widely used in pig feed. Bio-fermented feed for pigs refers to the use of microorganisms to convert some fermented raw materials into highly nutritious substances, increase feed utilization, and improve pig production performance. Pre-fermentation equipment will be used in the fermentation process to stir and turn the fermented raw materials to speed up the fermentation of the raw materials.

[0003] According to a disclosed pig feed pre-fermentation device (Announcement No.: CN218710373U), in the above application, through the coordination of a reduction motor, a fixed plate, a main rotating rod, a driving gear, a rack, a driven gear, a secondary rotating rod, a spiral blade one and a spiral blade two, the reduction motor drives the three spiral blades to rotate and rotate, so that the pig feed pre-fermentation device can comprehensively turn over and stir the raw materials inside the device to allow the raw materials to be fully fermented.

[0004] However, in actual use of the above-mentioned equipment, artificial heating is required for fermentation when the temperature is low to ensure that the inside of the fermentation tank reaches a suitable fermentation temperature. The existing method of heating the outer wall of the fermentation tank and transferring the heat to the inside of the fermentation tank will make the temperature of the outer periphery of the fermentation tank higher than the temperature at the center, thereby affecting the temperature uniformity and further affecting the fermentation effect and rate. In view of this, we propose a pre-fermentation device. Utility Model Content

[0005] The purpose of the utility model is to provide a pre-fermentation device to solve the problems raised in the above background technology.

[0006] To achieve the above object, the utility model provides the following technical solution: a pre-fermentation device, comprising a fermentation tank, a feed port is fixedly installed on the left side of the upper surface of the fermentation tank, a discharge port is fixedly installed on the bottom end of the right surface of the fermentation tank, and a stirring and heating mechanism is arranged inside the fermentation tank, and the stirring and heating mechanism comprises:

[0007] A motor, wherein the motor is fixedly mounted on the bottom surface of the fermentation tank, and an output shaft of the motor penetrates through the bottom surface of the fermentation tank and is fixedly mounted with a stirring frame. When the motor is started, the stirring frame can be driven to rotate at a low speed, thereby stirring and turning the raw materials. A circulation channel is provided inside the stirring frame, an input through hole is provided on the left side of the upper surface of the stirring frame, and an output through hole is provided on the right side of the upper surface of the stirring frame. When hot air enters the circulation channel, the stirring frame can be heated;

[0008] A circular through groove, the circular through groove is opened at the center of the upper surface of the fermentation tank, a bearing is fixedly installed inside the circular through groove, and the rotation of the stirring frame can be supported and limited by the cooperation of the circular through groove and the bearing;

[0009] A heating box is arranged above the fermentation tank, an electric heating tube is fixedly installed inside the heating box, two connecting tubes are fixedly installed on the left and right ends of the bottom surface of the heating box respectively, an air pump is fixedly installed on the outside of the connecting tube, and the air inside the heating box can be heated by starting the electric heating tube.

[0010] Preferably, the input through hole and the output through hole are respectively connected to the left and right ends of the circulation channel located at the top.

[0011] Preferably, the interiors of the two connecting pipes are interconnected with the interior of the heating box.

[0012] Preferably, the outer side of the upper end of the stirring frame is fixedly connected to the inner wall of the inner ring of the bearing.

[0013] Preferably, a fixing ring is fixedly installed at the center of the upper surface of the fermenter, an annular groove is opened on the upper surface of the fixing ring, and a limiting bead is fixedly installed on the bottom surface of the heating box, and the limiting bead can slide inside the annular groove.

[0014] Preferably, the size of the annular groove and the size of the limiting bead are matched with each other, and the bottom end of the limiting bead is slidably connected to the inside of the annular groove.

[0015] Compared with the prior art, the utility model provides a pre-fermentation device, which has the following beneficial effects:

[0016] 1. When the temperature inside the fermentation tank is too low, the pre-fermentation device can heat the stirring frame by cooperating with the input through hole, output through hole, circulation channel, heating box, electric heating pipe, connecting pipe and air pump, so that the stirring frame can fully heat and stir the fermentation raw materials, thereby accelerating the fermentation rate of the raw materials. At the same time, by alternately starting the two air pumps, the heating can be made more sufficient and uniform, avoiding the single air intake from the input through hole and the air discharge from the output through hole, resulting in the temperature at the input through hole always being higher than the output through hole, affecting the uniform heating and fermentation efficiency.

[0017] 2. The pre-fermentation device can limit and support the bottom of the heating box through the cooperation of the fixed ring, the annular groove and the limiting beads, so as to prevent the heating box from being bent when rotating to affect the sealing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the structure of the utility model at A;

[0020] Figure 3 It is a schematic diagram of the structure of the utility model at B;

[0021] Figure 4 This is a schematic diagram of the structure of the stirring frame part of the utility model;

[0022] Figure 5 It is a structural schematic diagram of the fixing ring of the utility model.

[0023] In the figure: 1. fermentation tank; 2. feed inlet; 3. discharge outlet; 4. stirring and heating mechanism; 401. motor; 402. stirring frame; 403. circulation channel; 404. input through hole; 405. output through hole; 406. circular through groove; 407. bearing; 408. heating box; 409. electric heating tube; 410. connecting tube; 411. air pump; 501. fixing ring; 502. annular groove; 503. limiting bead. DETAILED DESCRIPTION

[0024] like Figure 1-Figure 5 As shown, the utility model provides a technical solution: a pre-fermentation device, including a fermentation tank 1, a feed port 2 is fixedly installed on the left side of the upper surface of the fermentation tank 1, a discharge port 3 is fixedly installed on the bottom end of the right surface of the fermentation tank 1, and a stirring and heating mechanism 4 is arranged inside the fermentation tank 1.

[0025] The stirring and heating mechanism 4 includes: a motor 401, a circular through groove 406 and a heating box 408. The motor 401 is fixedly installed on the bottom surface of the fermentation tank 1. The output shaft of the motor 401 passes through the bottom surface of the fermentation tank 1 and is fixedly installed with a stirring frame 402. When the motor 401 is started, the stirring frame 402 can be driven to rotate at a low speed to stir and turn the fermentation raw materials placed in the fermentation tank 1, so that the fermentation is more complete.

[0026] A circulation channel 403 is provided inside the stirring frame 402, an input through hole 404 is provided on the left side of the upper surface of the stirring frame 402, and an output through hole 405 is provided on the right side of the upper surface of the stirring frame 402. The input through hole 404 and the output through hole 405 are respectively connected to the left and right ends of the circulation channel 403 at the top. When the hot air enters the circulation channel 403 from the input through hole 404, it will flow around the circulation channel 403 and then be discharged through the output through hole 405.

[0027] The circular through groove 406 is provided at the center of the upper surface of the fermentation tank 1, and a bearing 407 is fixedly installed inside the circular through groove 406. The outer side of the upper end of the stirring frame 402 is fixedly connected to the inner wall of the inner ring of the bearing 407. The positioning of the stirring frame 402 can be supported and limited by the cooperation of the circular through groove 406 and the bearing 407, so that the rotation of the stirring frame 402 is more stable. The heating box 408 is arranged above the fermentation tank 1, and an electric heating tube 409 is fixedly installed inside the heating box 408. When the electric heating tube 409 is energized, heat can be generated. The air inside the heating box 408 is heated, and two connecting pipes 410 are fixedly installed on the left and right ends of the bottom surface of the heating box 408, and the interiors of the two connecting pipes 410 are interconnected with the interior of the heating box 408. An air pump 411 is fixedly installed on the outside of the connecting pipes 410, and the bottom end of the connecting pipe 410 on the left is fixedly connected to the top of the input through hole 404, and the bottom end of the connecting pipe 410 on the right is fixedly connected to the top of the output through hole 405. The heating box 408 can move synchronously with the rotation of the stirring frame 402.

[0028] Furthermore, when the temperature inside the fermentation tank 1 is too low, the air pump 411 on the left side can be started to send the hot air heated inside the heating box 408 into the circulation channel 403 through the connecting pipe 410 and the input through hole 404 on the left side to heat the stirring frame 402, so that the stirring frame 402 can fully heat the fermentation raw materials during the stirring process, thereby accelerating the fermentation efficiency. The air that has turned cold after a circle inside the circulation channel 403 will return to the heating box 408 through the output through hole 405 for heating and circulation. After a period of time, the air pump 411 on the left side can be stopped and the air pump 411 on the right side can be started, so that the hot air enters the circulation channel 403 from the connecting pipe 410 and the output through hole 405 on the right side for circulation, making the heating more uniform, avoiding the single air intake from the input through hole 404 and the exhaust from the output through hole 405, resulting in the temperature at the input through hole 404 always being higher than the output through hole 405, affecting uniform heating and fermentation efficiency.

[0029] A fixing ring 501 is fixedly installed at the center of the upper surface of the fermentation tank 1, and an annular groove 502 is opened on the upper surface of the fixing ring 501. A limiting bead 503 is fixedly installed on the bottom surface of the heating box 408. The size of the annular groove 502 is adapted to the size of the limiting bead 503. The bottom end of the limiting bead 503 is slidably connected to the inside of the annular groove 502. The rotation of the heating box 408 can be guided and limited by the cooperation of the setting limiting bead 503 and the annular groove 502, so that the heating box 408 is more stable when rotating, and the deflection of the heating box 408 due to too long rotation time affecting the sealing can be avoided. The fixed connection methods mentioned in this scheme can be realized by bolt connection, and the components can be disassembled for easy maintenance.

[0030] In the utility model, when in use, when the temperature inside the fermentation tank 1 is too low, the electric heating tube 409 is started to heat the air inside the heating box 408, and then the air pump 411 on the left is started, so that the hot air is sent into the circulation channel 403 through the connecting pipe 410 and the input through hole 404 on the left to heat the stirring frame 402, so that the stirring frame 402 can fully heat the fermentation raw materials during the stirring process, and the motor 401 is started to drive the stirring frame 402 to rotate and stir, so that the fermentation of the fermentation raw materials is more sufficient. After a period of application, the air pump 411 on the left can be stopped, and the air pump 411 on the right can be started, so that the hot air enters the circulation channel 403 from the connecting pipe 410 and the output through hole 405 on the right to circulate, so that the heating is more uniform, and the bottom of the heating box 408 is limited and supported by the cooperation of the set fixing ring 501, the annular groove 502 and the limiting bead 503, so that the heating box 408 is more stable when rotating, and the deflection is avoided to affect the sealing effect.

[0031] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not deviate from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A pre-fermentation device, comprising a fermentation tank (1), wherein a feed inlet (2) is fixedly mounted on the left side of the upper surface of the fermentation tank (1), and a discharge outlet (3) is fixedly mounted on the bottom end of the right side surface of the fermentation tank (1), characterized in that: The fermentation tank (1) is provided with a stirring and heating mechanism (4) inside, and the stirring and heating mechanism (4) comprises: A motor (401), wherein the motor (401) is fixedly mounted on the bottom surface of the fermentation tank (1), an output shaft of the motor (401) passes through the bottom surface of the fermentation tank (1) and a stirring frame (402) is fixedly mounted thereon, a circulation channel (403) is provided inside the stirring frame (402), an input through hole (404) is provided on the left side of the upper surface of the stirring frame (402), and an output through hole (405) is provided on the right side of the upper surface of the stirring frame (402); A circular through groove (406), wherein the circular through groove (406) is provided at the center of the upper surface of the fermentation tank (1), and a bearing (407) is fixedly installed inside the circular through groove (406); A heating box (408), wherein the heating box (408) is arranged above the fermentation tank (1), an electric heating tube (409) is fixedly installed inside the heating box (408), two connecting tubes (410) are fixedly installed at the left and right ends of the bottom surface of the heating box (408), and an air pump (411) is fixedly installed on the outside of the connecting tube (410).

2. A pre-fermentation device according to claim 1, characterized in that: The input through hole (404) and the output through hole (405) are respectively connected to the upper left and right ends of the circulation channel (403).

3. A pre-fermentation device according to claim 1, characterized in that: The interiors of the two connecting pipes (410) are interconnected with the interior of the heating box (408).

4. A pre-fermentation device according to claim 1, characterized in that: The outer side of the upper end of the stirring frame (402) is fixedly connected to the inner wall of the inner ring of the bearing (407).

5. A pre-fermentation device according to claim 1, characterized in that: A fixing ring (501) is fixedly installed at the center of the upper surface of the fermentation tank (1), and an annular groove (502) is opened on the upper surface of the fixing ring (501). A limiting bead (503) is fixedly installed on the bottom surface of the heating box (408).

6. A pre-fermentation device according to claim 5, characterized in that: The size of the annular groove (502) and the size of the limiting bead (503) are mutually adapted, and the bottom end of the limiting bead (503) is slidably connected to the inside of the annular groove (502).

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