Multistage composite crushing pomace feed grinder

Abstract

The present application relates to the field of crushing, in particular to a multi-stage composite crushing fruit residue feed grinder. The problem to be solved is that the existing fruit residue feed crushing equipment does not have the function of multi-stage composite crushing and filter screen protection. The technical implementation scheme of the present application is: a multi-stage composite crushing fruit residue feed grinder, comprising a mounting frame and a crushing chamber; the mounting frame is provided with the crushing chamber, and the top of the crushing chamber is provided with a feed inlet; the present application realizes the setting of a pre-crushing plate in the crushing chamber, so that the fruit residue collides with the pre-crushing plate before entering the filter screen, avoiding the direct impact of hard and large blocky fruit residue on the filter screen. This structural design effectively solves the problem of deformation and damage of the filter screen in the existing fruit residue crushing equipment due to impact, greatly prolongs the service life of the filter screen, and ensures the stability of the filtering effect.

Description

Technical Field

[0001] This invention relates to the field of crushing, and more particularly to a multi-stage compound crushing fruit pomace feed pulverizer. Background Technology

[0002] The first step in utilizing fruit pomace as feed is to crush it. The particle size of the crushed pomace directly affects the effectiveness of subsequent fermentation, mixing, and pelleting processes, as well as the quality of the final feed product. Therefore, fruit pomace crushing equipment is one of the key pieces of equipment in fruit pomace feed production.

[0003] Currently, several patents disclose specialized crushing equipment for fruit pomace. For example, Chinese invention patent CN202122996U discloses a crusher specifically for fruit peels and pomace, which includes a motor, a crushing core, an upper cover, and a lower drum. The crushing core has multiple blades mounted on a rotating shaft, and filter screens are installed on the sides of the lower drum and the upper cover. This crusher uses the rotating shaft to drive the blades to rotate and cut and crush the fruit pomace, and uses the filter screen to screen the crushed material. However, in this design, the fruit pomace enters the crushing area directly in an untreated state and comes into contact with the filter screen. In the initial stage of crushing, the fruit pomace is relatively hard and has large block sizes, which can easily cause strong impacts to the filter screen, leading to deformation and damage, affecting the filtration effect and service life. In addition, Chinese invention patent CN201049314Y discloses a multi-stage crusher, which has at least one layer of crushing components in the feed inlet. After the material is crushed by the crushing rollers to obtain smaller particle sizes, it enters the crushing chamber for further crushing. While this solution achieves multi-stage crushing, it lacks the ability to adapt to the material's state in real time between each crushing stage, making it difficult to flexibly adjust crushing parameters according to fruit pomace with different hardness and particle size. Furthermore, Chinese invention patent CN223082853U discloses a multi-stage compound crusher that achieves multi-stage crushing by setting two sets of crushing rollers, with adjustable spacing between the two rollers. However, adjusting the roller spacing in this solution requires stopping the machine, making it impossible to dynamically adjust in real time according to the material's state during the crushing process. Summary of the Invention

[0004] In order to overcome the shortcomings of existing fruit pomace feed crushing equipment that does not have the functions of multi-stage compound crushing and filter screen protection, this invention provides a fruit pomace feed crusher with multi-stage compound crushing.

[0005] The technical implementation scheme of the present invention is as follows: a multi-stage compound crushing fruit pomace feed pulverizer, comprising a mounting frame and a crushing chamber; the crushing chamber is provided on the mounting frame, and a feed inlet is provided on the top of the crushing chamber; it also includes a fixing ring, a filter screen, a connecting ring, crushing discs, a motor, a rotating shaft, and pre-crushing plates; two symmetrically arranged fixing rings are installed in the crushing chamber; a filter screen for filtering crushed material is provided between the two fixing rings; a motor is installed on the mounting frame; a rotating shaft is connected to the output end of the motor; two connecting rings are installed on the rotating shaft; multiple sets of crushing discs for crushing fruit pomace are installed between the two connecting rings through a connecting rod; multiple pre-crushing plates for pre-crushing fruit pomace are installed in a ring array on the fixing rings.

[0006] Optionally, it also includes an electric turntable one, an electric turntable two, a connecting rod, and a gear; a fixing ring is installed on the electric turntable one and the electric turntable two, and the electric turntable two is located to the left of the electric turntable one; a filter screen is installed on the electric turntable one; multiple connecting rods are rotatably connected to the crushing chamber, and each connecting rod is fixedly connected to a corresponding pre-crushing plate; a gear is fixedly connected to the side of the connecting rod near the electric turntable two, and the inner side of the electric turntable two is provided with internal teeth that can mesh with the gear.

[0007] Optionally, the pre-crushing plate can be adjusted to contact the filter screen.

[0008] Optionally, the density of the annular array of pre-crushed plates changes from dense to sparse when viewed clockwise.

[0009] Optionally, it also includes a water inlet ring; the connecting rod passes through the rear side of the crushing chamber and is also equipped with a water inlet ring, which is connected to an external water circulation mechanism.

[0010] Optionally, both the connecting rod and the pre-crushing plate are hollow and interconnected.

[0011] Optionally, it also includes an upper guide plate, a lower guide plate, a protective membrane, a water guide plate, a drainage plate, an air extraction plate, and a water inlet plate; two symmetrical upper guide plates are installed on the upper inner side of the crushing chamber; two lower guide plates are installed on the lower inner side of the crushing chamber; a protective membrane is provided between the lower guide plates and the crushing chamber; a water guide plate is fixedly connected inside the crushing chamber, and the water guide plate is located below the corresponding protective membrane; a drainage plate is installed on the crushing chamber, and the drainage plate is connected to the water guide plate; an air extraction port is formed by the cooperation of the lower guide plates, the protective membrane, and the crushing chamber; an air extraction plate for air extraction is fixedly connected on the crushing chamber, and the air extraction plate is connected to the air extraction port; a water inlet plate is installed on the crushing chamber, and the water inlet plate is connected to an external water supply device; the lower guide plate has a hollow internal structure, is connected to the water inlet plate, and has a spray nozzle on its lower side near the protective membrane.

[0012] Optionally, an exhaust channel can be formed by the cooperation of an upper guide plate, a lower guide plate, and a filter screen.

[0013] Optionally, air inlets are provided on both the left and right sides of the top of the crushing chamber, and the air inlets are oriented at an angle upward towards the guide plate.

[0014] Optionally, the protective membrane is a waterproof and breathable membrane.

[0015] The beneficial effects are: by setting a pre-crushing plate in the crushing chamber, the fruit pomace first collides and buffers with the pre-crushing plate before entering the filter screen, avoiding direct impact of hard and large-lump fruit pomace on the filter screen. This structural design effectively solves the problem of filter screens being easily deformed and damaged by impact in existing fruit pomace crushing equipment, greatly extending the service life of the filter screen and ensuring the stability of the filtration effect; By setting up a linkage structure between the electric turntable, gears, and connecting rods, the pre-crushing plates can be driven to rotate in real time during the crushing process, thereby adjusting the spacing and angle between the pre-crushing plates. When there are many hard materials in the fruit pomace and the particle size is small, the gap between the pre-crushing plates can be reduced to prevent hard particles from directly passing through the gaps and impacting the filter screen. When the fruit pomace becomes soft after initial crushing, the gap between the pre-crushing plates can be increased to allow the fruit pomace to pass through smoothly and make full contact with the filter screen for secondary crushing. This real-time adjustment function allows the equipment to flexibly adjust the crushing parameters according to the actual state of the fruit pomace, such as hardness and particle size, to achieve adaptive crushing of fruit pomace with different characteristics and ensure consistent crushing results. By employing a ring array with a gradually varying density from dense to sparse in the pre-crushing plate, gradient and adaptive crushing of fruit residue at different crushing stages is achieved, effectively avoiding material accumulation and filter clogging problems, and significantly improving crushing efficiency and discharge effect. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the first three-dimensional structure of the multi-stage compound crushing fruit pomace feed pulverizer of the present invention. Figure 2 This is a schematic diagram of a second three-dimensional structure of the multi-stage compound crushing fruit pomace feed pulverizer of the present invention; Figure 3 This is a cross-sectional view of the present invention; Figure 4 This is a schematic diagram of the three-dimensional structure of the filter screen of the present invention; Figure 5 This is a schematic diagram of the three-dimensional structure of the filter screen and pre-crushing plate combination of the present invention; Figure 6 This is a schematic diagram of the three-dimensional structure of the combined crushing disc and electric turntable of the present invention; Figure 7 This is a front view of the pre-crushed plate of the present invention; Figure 8 This is a schematic diagram of the three-dimensional structure of the electric turntable and the pre-crushing plate combination of the present invention; Figure 9This is a schematic diagram of the three-dimensional structure of the pre-crushing plate and gear of the present invention; Figure 10 This is a schematic diagram of the three-dimensional structure of the upper guide piece and the lower guide piece combined according to the present invention; Figure 11 This is a three-dimensional structural diagram of the exhaust channel and air inlet combination of the present invention.

[0017] In the attached diagram, the labels are: 1-mounting bracket, 2-crushing chamber, 2001-exhaust channel, 2002-air blowing port, 2003-air extraction port, 101-fixing ring, 102-electric turntable one, 103-filter screen, 104-connecting ring, 105-crushing disc, 106-motor, 107-rotating shaft, 108-electric turntable two, 109-connecting rod, 110-pre-crushing plate, 111-water inlet ring, 112-gear, 201-upper guide plate, 202-lower guide plate, 203-protective membrane, 204-water guide plate, 205-drainage plate, 206-air extraction plate, 207-water inlet plate. Detailed Implementation

[0018] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0019] Example 1

[0020] A multi-stage compound crushing fruit pomace feed grinder, such as... Figures 1-9 As shown, it includes a mounting frame 1 and a crushing chamber 2; the crushing chamber 2 is mounted on the mounting frame 1, and a feed inlet is provided on the top of the crushing chamber 2; It also includes a fixed ring 101, a filter screen 103, a connecting ring 104, crushing discs 105, a motor 106, a rotating shaft 107, and a pre-crushing plate 110; two fixed rings 101 are installed in the crushing chamber 2, which are arranged symmetrically on the left and right; a filter screen 103 is arranged between the two fixed rings 101; a motor 106 is installed on the mounting frame 1; the output end of the motor 106 is connected to the rotating shaft 107; two connecting rings 104 are installed on the rotating shaft 107; multiple sets of crushing discs 105 are installed between the two connecting rings 104 through a connecting rod 109; multiple pre-crushing plates 110 are installed in a ring array on the fixed rings 101.

[0021] It also includes an electric turntable 102, an electric turntable 2 108, a connecting rod 109, and a gear 112; the fixing ring 101 is equipped with the electric turntable 102 and the electric turntable 2 108, and the electric turntable 2 108 is located to the left of the electric turntable 102; the filter screen 103 is installed on the electric turntable 102; multiple connecting rods 109 are rotatably connected to the crushing chamber 2, and each connecting rod 109 is fixedly connected to a corresponding pre-crushing plate 110; a gear 112 is fixedly connected to the side of the connecting rod 109 near the electric turntable 2 108, and the inner side of the electric turntable 2 108 is provided with internal teeth that can mesh with the gear 112, which are used to drive the gear 112 to rotate, so as to realize the angle adjustment between the pre-crushing plate 110 and the filter screen 103.

[0022] The swing range of the pre-crushing plate 110 is designed to allow its front edge to contact the outer surface of the filter screen 103. That is, at the extreme deflection position, the side edge of the pre-crushing plate 110 just touches the mesh surface of the filter screen 103. At this time, if the pre-crushing plate 110 swings back and forth slightly, it can scrape and push the blockage in the mesh of the filter screen 103.

[0023] The density of the annular array of the pre-crushed plate 110 changes from dense to sparse when viewed clockwise.

[0024] It also includes a water inlet ring 111; after the outer ends of all connecting rods 109 pass through the rear wall of the crushing chamber 2, they converge and are installed on a ring-shaped water collection cavity—the water inlet ring 111. The water inlet ring 111 has a water inlet interface, which is connected to an external water supply pipeline through a rotary joint. The interiors of both the connecting rods 109 and the pre-crushing plates 110 are machined into hollow structures, and their hollow cavities are interconnected. After being diverted by the water inlet ring 111, the external cooling water enters the hollow flow channels of each connecting rod 109, and then flows into the internal cavity of each pre-crushing plate 110. During the flow, it absorbs the heat generated by the impact friction of the pre-crushing plates 110, and then is discharged through the return water channel (which can be set at the other end of the connecting rod 109 or flow out in the opposite direction through the same channel), forming a circulating cooling loop.

[0025] Both the connecting rod 109 and the pre-crushing plate 110 are hollow and interconnected.

[0026] The operator first activates the external water circulation system, allowing cooling water to flow through the internal chambers of the inlet ring 111, connecting rod 109, and pre-crushing plate 110, establishing a cooling circulation. Then, the motor 106 is started, bringing the shaft 107 to the set operating speed, typically 1500 r / min to 3000 r / min. After the speed stabilizes, the fruit pomace material to be processed is continuously or intermittently fed into the feed inlet at the top of the crushing chamber 2.

[0027] After the fruit pomace enters the crushing chamber 2, it falls directly to the bottom of the internal space enclosed by the filter screen 103 under the influence of gravity. Driven by the rotating shaft 107, the crushing discs 105 rotate at high speed and expand centrifugally, violently impacting the fruit pomace that falls within their rotation trajectory. After being impacted, some of the fruit pomace is directly crushed into smaller particles, while the other part gains tangential velocity and moves in a circular direction.

[0028] As the fruit pomace moves circumferentially, it first encounters the pre-crushing plates 110 located in a closely spaced area. Due to the small gaps between the pre-crushing plates 110 in this area, large, hard pieces of fruit pomace cannot pass through and are forced to collide head-on with the plates. During this collision, the kinetic energy of the fruit pomace is absorbed by the pre-crushing plates 110 and converted into elastic energy dissipation, significantly reducing its speed and preventing it from flying at high speed towards the filter screen 103. Simultaneously, the collision itself causes the micro-cracks inside the fruit pomace to expand, achieving a certain degree of pre-crushing. After being buffered and decomposed by the pre-crushing plates 110, the fruit pomace has a smaller particle size and lower hardness, and then contacts the filter screen 103 at a lower rate. At this point, the impact force on the filter screen 103 has been significantly weakened, effectively protecting the structural integrity of the filter screen 103.

[0029] During the crushing process, operators can activate the electric turntable 108 in a timely manner based on real-time monitoring results of the output particle size or changes in the properties of the incoming material. The electric turntable 108 drives the connecting rod 109 to rotate via gear 112, causing all pre-crushing plates 110 to deflect synchronously at an angle, thereby changing the effective gap between adjacent pre-crushing plates 110. If the proportion of coarse particles in the finished product is detected to be too high, it indicates that the incoming material hardness is too great or the impact force of the crushing discs 105 is insufficient. In this case, the pre-crushing plates 110 should be controlled to deflect in the direction of decreasing gap, strengthening the interception force of the pre-crushing layer and extending the residence time of the material in the pre-crushing area, allowing for more thorough impact decomposition. Conversely, if the output is too fine or the capacity is too low, the plates should be deflected in the direction of increasing gap, accelerating the rate at which the material passes through the pre-crushing layer and increasing the throughput. This adjustment process can be completed in real time without stopping the equipment, achieving closed-loop adaptive control of the crushing process.

[0030] As the fruit pomace continues to move clockwise, it gradually enters the sparsely arranged area of ​​the pre-crushing plates 110. In this area, the obstruction rate of the pre-crushing plates 110 is significantly reduced, allowing the softened fruit pomace, already pre-crushed, to pass through unimpeded and form a large-area contact with the lower middle part of the filter screen 103. Since the particle size and hardness of the fruit pomace at this point meet the screening conditions, under the continuous centrifugal throwing action of the crushing discs 105, the fruit pomace is quickly discharged through the mesh of the filter screen 103 to the outside of the filter screen 103, and slides down the bottom of the crushing chamber 2 to the discharge port, completing the entire crushing-screening process. This gradient crushing strategy allows the material to complete different processing tasks at different circumferential positions, avoiding local overload and blockage caused by all materials concentrating in the same area and competing to pass through the filter screen 103.

[0031] Throughout the crushing operation, the cooling water flowing through the internal chamber of the pre-crushing plate 110 continuously carries away the heat generated by impact and friction, keeping the surface temperature of the pre-crushing plate 110 below 60°C. This, in turn, controls the overall temperature of the internal space of the crushing chamber 2 to not exceed 80°C, effectively protecting the heat-sensitive nutrients in the fruit pomace. At the same time, the cooling water circulation also reduces the risk of thermal fatigue of the pre-crushing plate 110 itself, extending its service life.

[0032] When filter screen 103 shows signs of clogging due to fiber entanglement or sticky material adhesion, resulting in a decrease in screening efficiency, the operator does not need to stop the machine. Instead, they simply issue a command through the control system to cause the electric rotary table 108 to perform a reciprocating oscillation within a set angle range (e.g., ±5° to ±10°). This reciprocating oscillation is transmitted to all pre-crushing plates 110 via a drive chain, causing their leading edges to reciprocate and scrape against the surface of filter screen 103. During this process, material embedded in the mesh of filter screen 103 is loosened and dislodged by the lateral pushing force from the pre-crushing plates 110, and carried away from the surface of filter screen 103 by the subsequent discharge material flow, thus achieving online regeneration of filter screen 103. After unclogging is complete, the electric rotary table 108 is reset to its normal operating angle, and the equipment can continue to operate at full load. This online unclogging function significantly reduces unplanned downtime and improves the effective operating rate of the equipment.

[0033] Example 2

[0034] Based on Example 1, such as Figure 10 and Figure 11As shown, it also includes an upper guide plate 201, a lower guide plate 202, a protective membrane 203, a water guide plate 204, a drainage plate 205, an air extraction plate 206, and a water inlet plate 207. Two symmetrical upper guide plates 201 are fixedly installed at the upper part of the inner side of the crushing chamber 2. The upper guide plate 201 is a long strip with an arc-shaped cross-section, its arc surface facing the interior of the crushing chamber 2, and its upper end fixed to the top wall of the crushing chamber 2, while its lower end extends obliquely downwards, forming a smooth airflow deflection surface. Two lower guide plates 202 are fixedly installed at the lower part of the inner side of the crushing chamber 2. The lower guide plates 202 are also arc-shaped plates, their lower ends near the bottom of the crushing chamber 2, and their upper ends extending obliquely upwards. A protective membrane 203 is tensioned and installed between each lower guide plate 202 and the chamber wall of the crushing chamber 2. This protective membrane 203 is a high-polymer waterproof and breathable membrane, whose micropore diameter allows water vapor molecules to pass through but prevents liquid water droplets from penetrating. The protective membrane 203 divides the cavity between the lower guide plate 202 and the chamber wall into an inner hot and humid gas channel and an outer condensate collection channel. A water guide plate 204 is also fixedly installed inside the crushing chamber 2. The water guide plate 204 is located directly below the protective membrane 203, and its surface is inclined, with its lowest point connecting to the inlet end of the drainage plate 205 installed on the chamber wall of the crushing chamber 2. The outlet end of the drainage plate 205 can be connected to a water collection container or directly returned to the storage tank of the external water circulation system.

[0035] An air extraction port 2003 is formed on the top side of the crushing chamber 2 by the geometric enclosure between the upper end of the lower guide plate 202, the upper end of the protective membrane 203, and the wall of the crushing chamber 2. An air extraction plate 206 is sealed to the outside of the air extraction port 2003, and the outlet end of the air extraction plate 206 is connected to a vacuum pump or induced draft fan through a pipeline.

[0036] An air inlet 2002 is provided on the top left and right side walls of the crushing chamber 2, and the axis of the air inlet 2002 is set to the direction of the upper surface of the inclined guide plate 201. The outer side of the air inlet 2002 is connected to a compressed air source or a blower through a pipeline.

[0037] In addition, a water inlet plate 207 is installed on the crushing chamber 2, and the inlet end of the water inlet plate 207 is connected to a clean water source or a low-pressure water pump. The interior of the lower guide plate 202 is provided with a hollow interlayer, the inlet of which is connected to the outlet of the water inlet plate 207, and multiple tiny water spray nozzles are opened on the lower side wall of the lower guide plate 202 near the protective membrane 203, with the water spray direction facing the surface of the protective membrane 203.

[0038] The spatial arrangement of the upper guide plate 201, the lower guide plate 202, and the filter screen 103 forms a continuous exhaust channel 2001. This channel starts from the air blowing port 2002, extends along the axial surface of the filter screen 103, and finally connects to the air extraction port 2003.

[0039] After the crushing operation starts, the blower connected to the air inlet 2002 and the induced draft fan connected to the exhaust plate 206 are turned on simultaneously. High-pressure air is blown out from the air inlet 2002 and impacts the arc surface of the upper guide plate 201 with a certain initial velocity and tilt angle. After being refracted and deflected by the upper guide plate 201, the airflow becomes a horizontal flow along the axial direction of the filter screen 103, forming a high-speed air curtain attached to the outer surface of the filter screen 103. This air curtain moves forward along the exhaust channel 2001, and during the movement, it applies a purging force to the crushed material on the outside of the filter screen 103, causing the fine particles that have passed through the filter screen 103 but have not yet detached to settle downwards more quickly, effectively preventing secondary accumulation of material on the outside of the filter screen 103. At the same time, the high-speed airflow also carries heat and moisture, continuously pushing the hot and humid air generated inside the crushing chamber 2 due to frictional heat and water vapor evaporation towards the exhaust port 2003.

[0040] Meanwhile, the induced draft fan maintains a certain negative pressure at the exhaust port 2003 through the exhaust plate 206, drawing out the hot and humid air from the exhaust channel 2001. When the hot and humid air flows through the area where the protective membrane 203 is located, due to the waterproof and breathable properties of the protective membrane 203, water vapor can penetrate the protective membrane 203 and enter the outer condensation chamber, while solid fruit pulp particles and liquid water droplets are blocked on the inner side of the membrane. The permeated water vapor undergoes a phase change and condenses into liquid water after contacting the cooler crushing chamber 2 wall or the water guide plate 204, and collects along the inclined surface of the water guide plate 204 to the drain plate 205 and is discharged outside the chamber. The collected condensate is clean and can be directly reused in the pre-crushing plate 110 water cooling circulation system in Example 1, realizing the recycling of water resources and reducing the consumption cost of cooling water.

[0041] During this process, to prevent fruit residue dust or microbial film from adhering to the outer surface of the protective membrane 203 due to long-term use, which would reduce its air permeability, cleaning water can be introduced through the water inlet plate 207. This water is then sprayed out from the spray nozzle through the hollow interlayer of the lower guide plate 202, forming a thin, continuous water curtain to wash the outer surface of the protective membrane 203. The rinsing water, along with contaminants, is discharged through the drain plate 205, ensuring that the protective membrane 203 maintains its high air permeability over a long period.

[0042] Through the synergistic effect of the aforementioned gas-liquid combined heat and humidity management system, the heat inside the crushing chamber 2 is efficiently discharged in both sensible and latent heat forms, and the ambient temperature and humidity are precisely controlled. This not only further ensures the nutritional quality of the fruit pomace material, but also significantly improves the internal working environment of the equipment, reduces problems such as bearing corrosion and seal aging caused by high temperature and humidity, and improves the long-term operational reliability and maintenance convenience of the entire machine.

[0043] The present application has been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of the present application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of the present application. Therefore, the content of this specification should not be construed as a limitation of the present application.

Claims

1. A multi-stage compound crushing fruit pomace feed pulverizer, comprising a mounting frame (1) and a crushing chamber (2); the mounting frame (1) is provided with the crushing chamber (2), and the top of the crushing chamber (2) is provided with a feed inlet; characterized in that: It also includes a fixed ring (101), a filter screen (103), a connecting ring (104), a crushing disc (105), a motor (106), a rotating shaft (107), and a pre-crushing plate (110); two symmetrically arranged fixed rings (101) are installed in the crushing chamber (2); a filter screen (103) for filtering crushed material is provided between the two fixed rings (101); a motor (106) is installed on the mounting frame (1); a rotating shaft (107) is connected to the output end of the motor (106); two connecting rings (104) are installed on the rotating shaft (107); multiple sets of crushing discs (105) for crushing fruit pomace are installed between the two connecting rings (104) through a connecting rod (109); multiple pre-crushing plates (110) for pre-crushing fruit pomace are installed in a ring array on the fixed ring (101).

2. A multi-stage compound crushing fruit pomace feed pulverizer according to claim 1, characterized in that: It also includes an electric turntable one (102), an electric turntable two (108), a connecting rod (109), and a gear (112); the fixed ring (101) is equipped with an electric turntable one (102) and an electric turntable two (108), and the electric turntable two (108) is located to the left of the electric turntable one (102); the filter screen (103) is installed on the electric turntable one (102); multiple connecting rods (109) are rotatably connected to the crushing chamber (2), and each connecting rod (109) is fixedly connected to a corresponding pre-crushing plate (110); a gear (112) is fixedly connected to the side of the connecting rod (109) near the electric turntable two (108), and the inner side of the electric turntable two (108) is provided with internal teeth that can mesh with the gear (112).

3. A multi-stage compound crushing fruit pomace feed pulverizer according to claim 1, characterized in that: The pre-crushing plate (110) can be adjusted to contact the filter screen (103).

4. A multi-stage compound crushing fruit pomace feed pulverizer according to claim 3, characterized in that: The density of the annular array of the pre-crushed plate (110) changes from dense to sparse when viewed clockwise.

5. A multi-stage compound crushing fruit pomace feed pulverizer according to claim 1, characterized in that: Also includes There is an inlet ring (111); the connecting rod (109) passes through the rear side of the crushing chamber (2) and is also equipped with an inlet ring (111), which is connected to the external water circulation mechanism.

6. A multi-stage compound crushing fruit pomace feed pulverizer according to claim 5, characterized in that: The connecting rod (109) and the pre-crushing plate (110) are both hollow and interconnected.

7. A multi-stage compound crushing fruit pomace feed pulverizer according to claim 1, characterized in that: It also includes an upper guide plate (201), a lower guide plate (202), a protective membrane (203), a water guide plate (204), a drainage plate (205), an air extraction plate (206), and a water inlet plate (207); two symmetrical upper guide plates (201) are installed on the upper inner side of the crushing chamber (2); two lower guide plates (202) are installed on the lower inner side of the crushing chamber (2); a protective membrane (203) is provided between the lower guide plates (202) and the crushing chamber (2); a water guide plate (204) is fixedly connected inside the crushing chamber (2), and the water guide plate (205) is fixedly connected to the crushing chamber (206). 4) Located below the corresponding protective membrane (203); a drainage plate (205) is installed on the crushing chamber (2), and the drainage plate (205) is connected to the water guide plate (204); an air extraction port (2003) is formed by the cooperation of the lower guide plate (202), the protective membrane (203) and the crushing chamber (2); an air extraction plate (206) for air extraction is fixed on the crushing chamber (2), and the air extraction plate (206) is connected to the air extraction port (2003); a water inlet plate (207) is installed on the crushing chamber (2), and the water inlet plate (207) is connected to the external water supply equipment; The lower guide plate (202) has a hollow structure inside, which is connected to the water inlet plate (207), and a water spray nozzle is opened on its lower side near the protective membrane (203).

8. A multi-stage compound crushing fruit pomace feed pulverizer according to claim 7, characterized in that: An exhaust channel (2001) is formed by the cooperation of the upper guide plate (201), the lower guide plate (202) and the filter screen (103).

9. A multi-stage compound crushing fruit pomace feed pulverizer according to claim 7, characterized in that: Crushing chamber (2) Air inlets (2002) are provided on both the left and right sides of the top, and the air inlets (2002) are in the direction of the upward guide plate (201).

10. A multi-stage compound crushing fruit pomace feed pulverizer according to claim 7, characterized in that: The protective membrane (203) is a waterproof and breathable membrane.

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