Feed raw material grinding and crushing device for live pig breeding

Abstract

The invention discloses a feed raw material grinding and crushing device for live pig breeding, and relates to the technical field of grinding and crushing, the feed raw material grinding and crushing device comprises a rack, the top of the rack is fixedly connected with a material blocking frame, a collecting cavity is formed in the rack, a grinding frame is arranged on the side, close to the material blocking frame, in the collecting cavity of the rack, and the material blocking frame is fixedly connected with a motor; an output shaft of the motor is fixedly connected with a rotating shaft, the rotating shaft is rotationally connected with the rack, a fixed pipe is fixedly connected to the middle of the interior of a collecting cavity of the rack, and the rotating shaft is fixedly connected with a grinding cylinder. The motor drives the grinding cylinder to rotate at a high speed, so that feed raw materials are progressively ground and crushed downwards step by step, and meanwhile, the grinding cylinder drives the first fan to rotate at a high speed, so that cooling air is uniformly discharged from the air outlet to cool and blow away the feed raw materials in the grinding area; the phenomenon that starch particles in the feed raw materials are gelatinized due to exposure in a high-temperature and high-pressure environment of the grinding area is avoided, and the palatability and digestibility of the feed are improved.

Description

Technical Field

[0001] The invention relates to the technical field of grinding and pulverizing, and in particular to a device for grinding and pulverizing feed raw materials for pig breeding. Background Art

[0002] In the process of pig farming, the quality of feed is directly related to the growth rate, health status and final meat quality of pigs. In order to ensure the best utilization of feed nutrients, various raw materials (such as grains, beans, minerals, etc.) are usually finely ground and crushed to improve their digestibility and palatability.

[0003] When traditional grinding and pulverizing devices grind feed raw materials, when solid materials are quickly squeezed and sheared, some energy will inevitably be released in the form of heat, causing the local temperature of the grinding area to rise. Especially in the case of long-term continuous operation, a high temperature and high pressure environment is formed in the grinding area. In this environment, the starch particles in the feed raw materials are prone to gelatinization, which not only reduces the palatability and digestibility of the feed, but also may cause problems such as decreased appetite and indigestion in pigs. The working rooms of most grinding devices are relatively closed, which restricts air circulation and thus hinders the effective dissipation of heat. Even if some equipment is equipped with cooling fans, it is still difficult to effectively solve the problem due to unreasonable locations. Summary of the invention

[0004] In order to solve the problem of feed gelatinization caused by the high temperature environment in the grinding zone, the present invention provides a feed raw material grinding and crushing device for pig breeding.

[0005] A feed raw material grinding and crushing device for pig breeding comprises a frame, a material blocking frame is fixedly connected to the top of the frame, a collecting chamber is opened inside the frame, a grinding frame is arranged on a side of the collecting chamber of the frame close to the material blocking frame, the material blocking frame is fixedly connected to a motor, an output shaft of the motor is fixedly connected to a rotating shaft, the rotating shaft is rotatably connected to the frame, a fixed pipe is fixedly connected to the middle part of the collecting chamber of the frame, the rotating shaft penetrates longitudinally from the inside of the fixed pipe, a grinding cylinder is fixedly connected to the rotating shaft, the fixed pipe penetrates longitudinally from the inside of the grinding cylinder, the grinding cylinder is rotatably connected to the fixed pipe, a ventilation chamber is opened in the grinding cylinder, a grinding zone is arranged between the end faces opposite to the lower side of the grinding cylinder, an air inlet uniformly distributed in the circumferential direction is opened on the side of the grinding cylinder close to the material blocking frame, a first fan is fixedly connected to the grinding cylinder, and an air outlet uniformly distributed in the circumferential direction is opened on the side of the grinding cylinder close to the grinding zone, the first fan is located above the air outlet, and a baffle is arranged on the side of the frame close to the collecting chamber.

[0006] Further, the gap between the end faces of the grinding cylinder and the grinding frame that are opposite to each other in the grinding area gradually decreases from top to bottom, and both the end faces of the grinding cylinder and the grinding frame that are opposite to each other in the grinding area are provided with convex teeth for grinding and pulverizing feed raw materials, and the sizes of the convex teeth gradually decrease from top to bottom.

[0007] Further, the air outlet is inclined downward.

[0008] Further, it further includes a filter screen corresponding to the air inlet. The filter screen is fixedly connected to one side of the grinding cylinder close to the corresponding air inlet. A circumferentially distributed guide vane is fixedly connected to one side of the grinding cylinder close to the filter screen for accelerating the introduction of external air into the grinding cylinder.

[0009] Further, it further includes an air guide ring. The air guide ring is fixedly connected to one side of the machine frame close to the collection chamber. The air guide ring is rotatably connected to the rotating shaft. A fixed net is fixedly connected to one side of the machine frame close to the air guide ring. A second fan is rotatably connected inside the fixed net. The second fan is fixedly connected to the rotating shaft. The collection chamber of the machine frame is provided with air outlet holes evenly distributed in a ring shape.

[0010] Further, the side of the air guide ring close to the fixed net is set as a convex surface for guiding the wind along the outer wall of the machine frame to the periphery of the air outlet holes.

[0011] Further, the air outlet holes are inclined upward.

[0012] Further, the blades of the first fan and the second fan are oriented in opposite directions.

[0013] Further, it further includes a spiral conveyor blade. The spiral conveyor blade is fixedly connected to the rotating shaft. The spiral conveyor blade is located inside the fixed pipe.

[0014] Further, it further includes fixing blocks symmetrically distributed along the machine frame. The fixing blocks are fixedly connected to the machine frame. The fixing blocks are fixedly connected with electric push rods. The grinding frame is slidably connected to the machine frame. The telescopic rod of the electric push rod is fixedly connected to the grinding frame.

[0015] The beneficial effects are as follows: In the present invention, the grinding cylinder is driven by a motor to rotate at a high speed to gradually grind and pulverize the feed raw materials in a progressive manner downward level by level. At the same time, the grinding cylinder drives the first fan to rotate at a high speed, so that the cooling air is evenly discharged at the air outlet, cooling and dispersing the feed raw materials in the grinding area, avoiding the phenomenon that the starch granules in the feed raw materials are gelatinized due to being exposed to the high temperature and high pressure environment in the grinding area, and improving the palatability and digestibility of the feed.

[0016] In the present invention, the dust in the air is filtered by the filter screen to prevent the dust from blowing onto the feed, and is accelerated and guided to the first fan by the guide vane to increase the flow rate of the air entering.

[0017] When the present invention drives the grinding cylinder to rotate through the rotating shaft, it also drives the second fan to rotate at a high speed, so that the outside air flows to the air outlet, accelerating the air flow rate outside the air outlet, and forming a low-pressure area around the outside of the air outlet, so that the hot air flow generated by the accumulation will be accelerated and discharged outside the frame through the air outlet.

[0018] The present invention drives the spiral conveying blades to rotate through the rotating shaft, so as to re-convey the feed initially ground in the collection cavity of the frame upward along the fixed pipe to the grinding frame for cyclic grinding until feed particles with appropriate particle size are obtained.

[0019] The present invention controls the progressive lifting or lowering of the grinding frame through the electric push rod, so that the grinding frame gradually approaches or moves away from the grinding cylinder, realizing the effect of progressively grinding the feed raw materials and improving the grinding and pulverizing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional structure schematic diagram of the present invention.

[0021] Figure 2 It is a sectional view of the three-dimensional structure of the present invention.

[0022] Figure 3 It is a three-dimensional structure schematic diagram of components such as the rotating shaft, fixed pipe and grinding cylinder of the present invention.

[0023] Figure 4 It is a three-dimensional structure schematic diagram of the grinding frame and the grinding cylinder of the present invention.

[0024] Figure 5 It is a three-dimensional structure schematic diagram of components such as the first fan, filter screen and guide vane of the present invention.

[0025] Figure 6 It is a three-dimensional structure schematic diagram of components such as the grinding cylinder, filter screen and first fan of the present invention.

[0026] Figure 7 It is a three-dimensional structure schematic diagram of components such as the air guide ring, fixed net and spiral conveying blades of the present invention.

[0027] Figure 8 It is a three-dimensional structure schematic diagram of the fixed net and the second fan of the present invention.

[0028] Fig. 9 It is a three-dimensional structure schematic diagram of components such as the grinding frame, fixed block and electric push rod of the present invention.

[0029] Names and serial numbers of components in the figure: 101 - frame, 102 - material baffle, 103 - grinding frame, 104 - motor, 105 - rotating shaft, 106 - fixed pipe, 107 - grinding cylinder, 108 - air inlet, 109 - first fan, 110 - air outlet, 111 - baffle, 201 - filter screen, 202 - guide vane, 301 - air guide ring, 302 - fixed net, 303 - second fan, 304 - air outlet hole, 401 - spiral conveyor blade, 501 - fixed block, 502 - electric push rod. Detailed implementation manners

[0030] The preferred technical solutions of the present invention will be described in detail below with reference to the accompanying drawings.

[0031] Example 1: A feed raw material grinding and pulverizing device for pig breeding, as Figure 1-Figure 4 shown, comprising a frame 101. A material baffle 102 is fixedly connected to the top of the frame 101. A collection cavity is formed inside the frame 101 for collecting pulverized feed. A grinding frame 103 is arranged on one side of the collection cavity of the frame 101 close to the material baffle 102. The grinding frame 103 is composed of two parts. The upper part is arranged as a cylindrical tube, and the lower part is arranged as a frustum-shaped tube with a larger upper part and a smaller lower part. A motor 104 is fixedly connected to the top of the material baffle 102. An output shaft of the motor 104 is fixedly connected to a rotating shaft 105. The rotating shaft 105 is rotatably connected to the frame 101. A fixed pipe 106 is fixedly connected to the middle of the collection cavity of the frame 101. The rotating shaft 105 longitudinally penetrates through the inside of the fixed pipe 106. A grinding cylinder 107 is fixedly connected to the rotating shaft 105. The grinding cylinder 107 is located inside the grinding frame 103. The fixed pipe 106 longitudinally penetrates through the inside of the grinding cylinder 107. The grinding cylinder 107 is rotatably connected to the fixed pipe 106. An air vent cavity is formed inside the grinding cylinder 107. A grinding area is arranged between the end face of the grinding cylinder 107 opposite to the lower side of the grinding frame 103. The gap between the end faces of the grinding cylinder 107 and the grinding frame 103 in the grinding area gradually decreases from top to bottom. And the end faces of the grinding cylinder 107 and the grinding frame 103 in the grinding area are both provided with convex teeth for grinding and pulverizing feed raw materials, and the sizes of the convex teeth gradually decrease from top to bottom. A circumferentially evenly distributed air inlet 108 is formed on the upper side of the grinding cylinder 107. External gas enters the air vent cavity of the grinding cylinder 107 through the air inlet 108. A first fan 109 is fixedly connected inside the grinding cylinder 107. The first fan 109 is arranged to be inclined in the clockwise direction, so that the wind blows from top to bottom. A V-shaped surface is arranged below the first fan 109 inside the grinding cylinder 107. A circumferentially equally spaced air outlet 110 is formed on one side of the grinding cylinder 107 close to the grinding area. The first fan 109 is located above the air outlet 110. The V-shaped surface inside the grinding cylinder 107 is used to guide the wind blown by the first fan 109 to the air outlet 110. The air outlet 110 is inclined downward for guiding the wind to the grinding area. A baffle 111 is arranged at the lower left part of the frame 101 close to the collection cavity. By opening the baffle 111, the feed in the collection cavity can be taken out.

[0032] First, turn on the motor 104. The output shaft of the motor 104 drives the rotating shaft 105 to rotate at high speed, thereby driving the grinding cylinder 107 to rotate at high speed. The grinding cylinder 107 drives the first fan 109 to rotate at high speed. Then, feed the raw materials for pig breeding feed into the grinding frame 103. The feed raw materials slide down along the grinding frame 103. When passing through the grinding area between the grinding frame 103 and the grinding cylinder 107, as the gap between the grinding cylinder 107 and the grinding frame 103 and the size of the convex teeth gradually decrease downward, the high-speed rotating grinding cylinder 107 grinds and crushes the feed raw materials step by step in a progressive manner downward. At the same time, when the first fan 109 rotates at high speed, due to the design that the blades of the first fan 109 are inclined clockwise, the pressure below the blades is relatively high, while a low-pressure area is formed above. Due to the existence of this low-pressure area, the outside air is sucked into the ventilation cavity of the grinding cylinder 107 through the air inlet 108, so that the air flows from top to bottom along the first fan 109 and is guided to be discharged from the air outlet 110. The evenly discharged air flow cools and blows away the feed raw materials at the grinding area, preventing the starch granules in the feed raw materials from gelatinizing due to being exposed to the high-temperature and high-pressure environment in the grinding area, improving the palatability and digestibility of the feed. The ground and crushed feed raw materials fall downward into the collection cavity of the frame 101. After the grinding is completed, turn off the motor 104. Finally, open the baffle 111 and take out the feed in the collection cavity of the frame 101.

[0033] As Figure 5 and Figure 6 shown, it further includes a filter screen 201 corresponding to the air inlet 108. The filter screen 201 is fixedly connected to one side of the grinding cylinder 107 close to the corresponding air inlet 108. A circumferentially distributed guide vane 202 is fixedly connected to one side of the inside of the grinding cylinder 107 close to the filter screen 201, which is used to accelerate the introduction of external air into the grinding cylinder 107.

[0034] When the outside air passes through the air inlet 108, the dust in the air will be filtered by the filter screen 201 to prevent the dust from blowing onto the feed. When entering the grinding cylinder 107, it will be accelerated and guided to the first fan 109 through the guide vane 202 in advance, improving the flow rate of the air entering.

[0035] Example 2: On the basis of Example 1, as Figure 7 and Figure 8As shown in the figure, it further includes an air guide ring 301. The air guide ring 301 is fixedly connected to the outer bottom side of the frame 101 close to the collection chamber. The air guide ring 301 is rotationally connected to the rotating shaft 105. A fixed net 302 is fixedly connected to one side of the frame 101 close to the air guide ring 301. A second fan 303 is rotationally connected within the fixed net 302. The second fan 303 is arranged to be inclined counterclockwise, so that the wind blows from bottom to top. The second fan 303 is fixedly connected to the rotating shaft 105. Annularly and evenly distributed air outlet holes 304 are formed in the upper part of the collection chamber of the frame 101. The air outlet holes 304 are inclined upward. One side of the air guide ring 301 close to the fixed net 302 is set as a convex surface, which is used to guide the wind along the outer wall of the frame 101 to the periphery of the air outlet holes 304, forming a low-pressure area to accelerate the discharge of the hot air in the collection chamber out of the air outlet holes 304.

[0036] To prevent the feed from accumulating in the collection chamber of the frame 101 and generating high temperature, by setting the air outlet holes 304, the hot air flow in the collection chamber of the frame 101 can be discharged. In addition, when the rotating shaft 105 rotates, it will also drive the second fan 303 to rotate at high speed. Due to the design that the blades of the second fan 303 are inclined counterclockwise, the pressure above the blades is relatively high, while a low-pressure area is formed below. Due to the existence of this low-pressure area, the outside air will flow from bottom to top along the first fan 109 and be guided to the air guide ring 301, and flow to the air outlet holes 304 along the bottom surface direction of the air guide ring 301 and the outer wall direction of the frame 101, accelerating the air flow rate outside the air outlet holes 304. According to Bernoulli's theorem, the air pressure will decrease where the air flow rate increases, so that a low-pressure area is formed around the outside of the air outlet holes 304. Due to the existence of this low-pressure area, the hot air flow generated by the accumulation will be accelerated to be discharged out of the frame 101 through the air outlet holes 304.

[0037] Embodiment 3: On the basis of Embodiment 2, as Figure 7 shown, it further includes a spiral conveyor blade 401. The spiral conveyor blade 401 is fixedly connected to the rotating shaft 105. The spiral conveyor blade 401 is located within the fixed pipe 106.

[0038] When the rotating shaft 105 rotates, it will also drive the spiral conveyor blade 401 to rotate, thereby re-conveying the feed initially ground in the collection chamber of the frame 101 upward along the fixed pipe 106 into the grinding frame 103 for cyclic grinding until the feed particles with a suitable particle size are obtained after multiple grindings, and then the motor 104 is turned off.

[0039] As Fig. 9 shown, it further includes fixed blocks 501 symmetrically distributed left and right along the frame 101. The fixed blocks 501 are fixedly connected to the frame 101. Electric push rods 502 are fixedly connected to the fixed blocks 501. The grinding frame 103 is slidably connected to the frame 101. The telescopic rods of the electric push rods 502 are fixedly connected to the upper part of the grinding frame 103.

[0040] During grinding, by controlling the electric push rod 502 to extend upward at a fixed distance every minute, the grinding frame 103 is driven to lift once every minute, so that the grinding frame 103 gradually approaches the grinding cylinder 107. When it is lifted three times, the grinding frame 103 is very close to the grinding cylinder 107, and then it is no longer lifted. Control the electric push rod 502 to shorten at a fixed distance every minute, so that the grinding frame 103 descends and resets in three times. In this way, the effect of progressive grinding of feed raw materials is realized, and the grinding and pulverizing effect is improved.

[0041] The above has introduced the present application in detail. Specific examples are used in this article to elaborate on the principle and implementation manner of the present application. The description of the above embodiments is only used to help understand the method and its core idea of the present application; at the same time, for those of ordinary skill in the art, according to the idea of the present application, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to the present application.

Claims

1. A feed raw material grinding and crushing device for pig breeding, characterized in that: The machine comprises a frame (101), a material blocking frame (102) is fixedly connected to the top of the frame (101), a collecting chamber is opened inside the frame (101), a grinding frame (103) is arranged on a side of the collecting chamber of the frame (101) close to the material blocking frame (102), the material blocking frame (102) is fixedly connected to a motor (104), an output shaft of the motor (104) is fixedly connected to a rotating shaft (105), the rotating shaft (105) is rotatably connected to the frame (101), a fixed tube (106) is fixedly connected to the middle of the collecting chamber of the frame (101), the rotating shaft (105) longitudinally penetrates the inside of the fixed tube (106), the rotating shaft (105) is fixedly connected to a grinding cylinder (107), the fixed tube (106) is connected from the grinding cylinder to the rotating shaft (107). The inside of the cylinder (107) is penetrated longitudinally, the grinding cylinder (107) is rotatably connected to the fixed tube (106), a ventilation cavity is provided in the grinding cylinder (107), a grinding zone is set between the end faces opposite to the lower side of the grinding cylinder (107) and the grinding frame (103), a circumferentially evenly distributed air inlet (108) is provided on the side of the grinding cylinder (107) close to the material blocking frame (102), a first fan (109) is fixedly connected to the grinding cylinder (107), a circumferentially evenly distributed air outlet (110) is provided on the side of the grinding cylinder (107) close to the grinding zone, and the first fan (109) is located above the air outlet (110), and a baffle (111) is provided on the side of the frame (101) close to the collecting chamber.

2. The feed raw material grinding and crushing device for pig breeding according to claim 1, characterized in that: The gap between the end surfaces of the grinding cylinder (107) and the grinding frame (103) located in the grinding area opposite to each other gradually decreases from top to bottom, and the end surfaces of the grinding cylinder (107) and the grinding frame (103) located in the grinding area opposite to each other are both provided with convex teeth for grinding and crushing feed raw materials, and the size of the convex teeth gradually decreases from top to bottom.

3. The feed raw material grinding and crushing device for pig breeding according to claim 2, characterized in that: The air outlet (110) is inclined downward.

4. The feed raw material grinding and crushing device for pig breeding according to claim 3, characterized in that: It also includes a filter screen (201) corresponding to the air inlet (108), the filter screen (201) being fixedly connected to a side of the grinding cylinder (107) close to the corresponding air inlet (108), and a circumferentially distributed guide plate (202) being fixedly connected to a side of the grinding cylinder (107) close to the filter screen (201) for accelerating external air into the grinding cylinder (107).

5. The feed raw material grinding and crushing device for pig breeding according to claim 4, characterized in that: It also comprises an air guide ring (301), the air guide ring (301) being fixedly connected to a side of the frame (101) close to the collection chamber, the air guide ring (301) being rotatably connected to the rotating shaft (105), a fixed net (302) being fixedly connected to a side of the frame (101) close to the air guide ring (301), a second fan (303) being rotatably connected inside the fixed net (302), the second fan (303) being fixedly connected to the rotating shaft (105), and the collection chamber of the frame (101) being provided with annular evenly distributed air outlet holes (304).

6. A feed raw material grinding and pulverizing device for pig breeding according to claim 5, characterized in that: A side of the air guide ring (301) close to the fixed net (302) is arranged as a convex surface, and is used to guide wind along the outer wall of the frame (101) to the periphery of the air outlet hole (304).

7. A feed raw material grinding and pulverizing device for pig breeding according to claim 6, characterized in that: The air outlet hole (304) is inclined upward.

8. The feed raw material grinding and crushing device for pig breeding according to claim 7, characterized in that: The blades of the first fan (109) and the second fan (303) are oriented in opposite directions.

9. The feed raw material grinding and crushing device for pig breeding according to claim 8, characterized in that: It also includes a spiral conveying blade (401), the spiral conveying blade (401) being fixedly connected to the rotating shaft (105), and the spiral conveying blade (401) being located in the fixed tube (106).

10. A feed raw material grinding and pulverizing device for pig breeding according to claim 9, characterized in that: It also includes fixed blocks (501) symmetrically distributed along the frame (101), the fixed blocks (501) being fixedly connected to the frame (101), the fixed blocks (501) being fixedly connected to an electric push rod (502), the grinding frame (103) being slidably connected to the frame (101), and the telescopic rod of the electric push rod (502) being fixedly connected to the grinding frame (103).

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