Aquaculture feed pretreatment device with screening function and pretreatment process

Abstract

The invention relates to the field of feed pretreatment devices, and in particular to a feed pretreatment device for aquaculture with a screening function and a pretreatment process. The pretreatment device comprises a machine base, a discharge bottom box, a screening box, a feeding port, a vibration motor, a moving mechanism and a screening unit. The screening box is provided with a slag discharge port, the discharge bottom box is provided with a discharge port, the moving mechanism has a reciprocating output end, the screening unit comprises a screening transverse plate, a slag delivery box, a slag storage box and a slag scraping mechanism. A plurality of accommodating long slots are provided on the screening transverse plate, each of which is fixedly provided with a filter screen plate, the slag scraping mechanism has a slag scraping output end, the screening unit has a slag delivery end, the slag scraping output end is used to scrape feed filter residue on the filter screen plate, the reciprocating output end is connected to the slag delivery box, and the slag delivery end is used to deliver feed filter residue in the slag delivery box into the slag storage box. The device can automatically clean feed filter residue on the filter screen plate when screening is in progress, thereby reducing the workload of workers.

Description

Technical Field

[0001] The invention relates to the field of feed pretreatment devices, and in particular to a feed pretreatment device for aquaculture with a screening function and a pretreatment process. Background Art

[0002] In aquaculture, feed needs to be screened to meet the feed needs of aquatic animals such as fish, shrimp, crabs, etc. at different maturity stages. Screening can remove impurities and large and small particles that do not meet the specifications, leaving feed of uniform size for easy feeding of aquatic animals.

[0003] Aquatic feed often contains certain oils, proteins and other ingredients. During the screening process, these ingredients are easily attached to the screen and cause blockage, affecting the screening efficiency and effect. The traditional cleaning method is usually for farmers to manually disassemble the screen and then use a brush to clean the feed residues on the surface of the screen. This method increases the workload of farmers, and the brush may also shed hair. The fallen bristles will also affect the quality of the feed and affect the feeding of aquatic animals. In addition, the screening device needs to be shut down when disassembling and cleaning the feed residues, which affects the screening efficiency. Therefore, it is necessary to design a new feed pretreatment screening device to solve the above problems. Summary of the invention

[0004] Based on this, it is necessary to provide a feed pretreatment device and pretreatment process for aquaculture with screening function in response to the existing technical problems.

[0005] In order to solve the problems of the prior art, the technical solution adopted by the present invention is: a feed preprocessing device for aquaculture with a screening function, comprising a machine base, a discharge bottom box elastically arranged above the machine base, a screening box fixedly arranged on the discharge bottom box, a feeding port arranged on the screening box, a vibration motor fixedly arranged on the side wall of the screening box, a moving mechanism arranged on the side wall of the screening box and a screening unit arranged inside the screening box, the screening box is provided with a slag outlet, the discharge bottom box is provided with a discharge port, the moving mechanism has a reciprocating output end, and the screening unit includes a fixed device A screening transverse plate is placed in the screening box, a slag delivery box is slidably arranged on the screening box, two slag storage boxes are fixedly arranged at both ends of the slag delivery box, and a slag scraping mechanism is used to convey feed filter residue into the slag delivery box. A plurality of accommodating long grooves are evenly spaced along the width of the screening transverse plate, a filter screen plate is fixedly arranged in each accommodating long groove, the slag scraping mechanism has a slag scraping output end, and the screening unit has a slag delivery end. The slag scraping output end is used to scrape off the feed filter residue on the filter screen plate, and the reciprocating output end is connected to the slag delivery box, and the slag delivery end is used to convey the feed filter residue in the slag delivery box into the slag storage box.

[0006] Furthermore, the screening unit also includes a transverse shifter arranged at the bottom of the screening transverse plate and a material stopper frame slidably arranged on the screening transverse plate, the material stopper frame includes a plurality of material stopper bars arranged at equal intervals and two connecting transverse plates fixedly arranged at both ends of all the material stopper bars, the transverse shifter has a transverse shift output end, the transverse shift output end is connected to the material stopper bar, and the size of the material stopper bar is the same as the size of the accommodating long groove.

[0007] Furthermore, the transverse shifter includes two push rods symmetrically fixed at the bottom of the screening transverse plate, two limiting transverse grooves symmetrically opened at both ends of the screening transverse plate, a limiting column slidably arranged in each limiting transverse groove and a connecting frame fixedly arranged at the bottom of each limiting column, the connecting frame is fixedly connected to the pushing output end of the push rod, and the limiting column corresponds to the connecting transverse plate one by one and is fixedly connected.

[0008] Furthermore, two elastic sealing bands are symmetrically arranged in the limiting transverse groove, one end of the elastic sealing band is fixedly connected to the limiting column, and the other end is fixedly connected to the groove wall of the limiting transverse groove.

[0009] Furthermore, the slag scraping mechanism includes two wedge-shaped sliders symmetrically fixed on the top of the slag feeding box, a bearing support plate slidably arranged on the two wedge-shaped sliders, a plurality of slag receiving boxes arranged at equal intervals along the bearing support plate, a slag feeding hose fixedly arranged at the bottom of each slag receiving box, a slag scraping plate rotatably arranged in each slag receiving box by a torsion spring, and two supporting slide bars symmetrically arranged between two connecting frames, the bearing support plate is slidably connected to the two supporting slide bars through a linear bearing, the number of slag receiving boxes is the same as the number of material blocking bars and corresponds one to one, one end of the slag feeding hose is connected to the interior of the slag receiving box, and the other end is connected to the interior of the slag feeding box.

[0010] Furthermore, the screening unit also includes a mounting shaft rotatably arranged in the slag feeding box, a spiral blade fixedly arranged on the mounting shaft, a transmission gear coaxially fixedly arranged at both ends of the mounting shaft, a supporting plate arranged above each transmission gear and fixedly connected to the side wall of the screening box, a transmission rack fixedly arranged on each supporting plate, and a slag discharge port opened at both ends of the slag feeding box, a slag storage box fixed cover is arranged on the slag discharge port, and the transmission gear is meshed with the transmission rack.

[0011] Furthermore, the moving mechanism includes a driving motor fixedly mounted on the side wall of the screening box, a reciprocating screw rod rotatably arranged on one side wall of the screening box through a bearing, and a limiting slide rod fixedly mounted on a side wall of the screening box away from the reciprocating screw rod through a bracket. A slide groove for sliding a slag box is provided on the side wall of the screening box, and an elastic soft belt is provided in the slide groove. One end of the slag box is threadably connected to the reciprocating screw rod through a threaded sleeve, and the other end is slidably connected to the limiting slide rod through a linear bearing. The output shaft of the driving motor is connected to the reciprocating screw rod through a reduction gear box.

[0012] Furthermore, a mounting groove is provided at the bottom of the slag delivery box, a ventilation arc plate is fixedly provided in the mounting groove, an exhaust box is fixedly provided on the mounting groove, and an exhaust fan is fixedly provided beside the exhaust box.

[0013] Furthermore, two limiting slides are fixedly arranged on the screening box in a symmetrical state, and the limiting slides correspond to the slag storage boxes one by one and are slidably connected.

[0014] A feed pretreatment process for aquaculture with screening function comprises the following steps:

[0015] S1: Feed that needs to be pretreated is fed into the feeding port;

[0016] S2: The vibration motor starts, and the device begins to screen the feed. Impurities in the feed, damp and agglomerated feed, and other impurities that do not meet the use requirements are discharged from the slag outlet. The screened feed falls into the discharge bottom box and is finally discharged from the discharge outlet for use.

[0017] S3: During the screening process, the scraper mechanism cleans the feed residue on the filter screen in real time;

[0018] S4: Complete the pretreatment of feed.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] First: This device can automatically clean the filter screen in the screening device without stopping the equipment, thereby improving work efficiency and saving workers' workload;

[0021] Second: This device can automatically send the scraped feed residue into the residue storage box. Workers only need to clean the residue storage box regularly without opening the screening box to prevent external impurities from entering the interior and polluting the working environment.

[0022] Thirdly, the device provides an air extractor under the slag delivery box, so that a certain amount of suction is generated at the slag receiving box, ensuring that the feed filter residue scraped off by the scraper plate can smoothly enter the slag receiving box. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 The three-dimensional structure of the embodiment is shown in FIG. Figure 1 ;

[0024] Figure 2 The three-dimensional structure of the embodiment is shown in FIG. Figure 2 ;

[0025] Figure 3 The three-dimensional structure of the embodiment is shown in FIG. Figure 3 ;

[0026] Figure 4 yes Figure 3A schematic diagram of the structure enlargement in the middle;

[0027] Figure 5 is a partial structural cross-sectional view of an embodiment;

[0028] Figure 6 is a schematic diagram of the three-dimensional structure of the filter screen plate of the embodiment;

[0029] Figure 7 The three-dimensional structure of the material blocking frame of the embodiment is shown in FIG. Figure 1 ;

[0030] Figure 8 The three-dimensional structure of the material blocking frame of the embodiment is shown in FIG. Figure 2 ;

[0031] Fig. 9 This is a schematic diagram of the three-dimensional structure of the screening horizontal plate of the embodiment;

[0032] Fig.10 is a schematic diagram of the three-dimensional structure of the supporting slide bar and the bearing support plate of the embodiment;

[0033] Fig.11 The three-dimensional structure of the bearing support plate of the embodiment is schematically decomposed Figure 1 ;

[0034] Fig.12 The three-dimensional structure of the bearing support plate of the embodiment is schematically decomposed Figure 2 ;

[0035] Fig.13 It is a schematic diagram of the three-dimensional structure when the material blocking strip of the embodiment covers half of the filter screen plate.

[0036] The numbers in the figure are: 1, machine base; 2, discharge bottom box; 3, screening box; 4, vibration motor; 5, slag outlet; 6, limit slide plate; 7, feeding port; 8, discharge port; 9, driving motor; 10, reciprocating screw rod; 11, limit slide bar; 12, transverse shifter; 13, screening horizontal plate; 14, containing long slot; 15, filtering screen plate; 16, limit horizontal slot; 17, elastic sealing belt; 18, push rod; 19, connecting frame; 20, limit column; 21, supporting slide bar; 2 2. Material blocking rack; 23. Material blocking strip; 24. Connecting cross plate; 25. Slag delivery box; 26. Bearing support plate; 27. Slag receiving box; 28. Slag scraper plate; 29. ​​Slag delivery hose; 30. Wedge-shaped slider; 31. Mounting shaft; 32. Spiral blade; 33. Transmission gear; 34. Elastic soft belt; 35. Slag discharge port; 36. Slag storage box; 37. Mounting groove; 38. Ventilation arc plate; 39. Vacuum; 40. Exhaust box; 41. Supporting support plate; 42. Transmission rack. DETAILED DESCRIPTION

[0037] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0038] refer to Figures 1 to 13 :

[0039] A feed preprocessing device for aquaculture with a screening function, comprising a machine base 1, a discharge bottom box 2 elastically arranged above the machine base 1, a screening box 3 fixedly arranged on the discharge bottom box 2, a feeding port 7 arranged on the screening box 3, a vibration motor 4 fixedly arranged on the side wall of the screening box 3, a moving mechanism arranged on the side wall of the screening box 3 and a screening unit arranged inside the screening box 3, the screening box 3 is provided with a slag outlet 5, the discharge bottom box 2 is provided with a discharge outlet 8, the moving mechanism has a reciprocating output end, the screening unit comprises a screening cross plate 13 fixedly arranged in the screening box 3, a slag delivery box 25 slidably arranged on the screening box 3, and two slag storage boxes 36 (such as Fig.12 As shown) and a scraping mechanism for conveying feed residue into the residue delivery box 25, a plurality of accommodating long grooves 14 (such as Fig. 9 As shown), a filter screen plate 15 is fixedly arranged in each accommodating long groove 14, the scraping mechanism has a scraping output end, and the screening unit has a scraping conveying end. The scraping output end is used to scrape off the feed filter residue on the filter screen plate 15, and the reciprocating output end is connected to the scrap conveying box 25. The scraping conveying end is used to convey the feed filter residue in the scrap conveying box 25 into the scrap storage box 36.

[0040] When the device is in operation, the feed to be processed is put into the feeding port 7, and then the vibration motor 4 is started. The operation of the vibration motor 4 causes the screening box 3 and the discharge bottom box 2 to shake, so that the feed can be screened through the filter screen plate 15. Impurities in the feed, lumps caused by moisture and other impurities that cannot pass through the filter screen plate 15 will be discharged through the slag outlet 5. The feed that passes through the filter screen plate 15 will fall into the discharge bottom box 2 and finally be discharged from the discharge port 8. When it is necessary to clean the filter screen plate 15, the reciprocating output end drives the slag box 25 to move under the screening cross plate 13. At the same time, the scraping mechanism scrapes off the feed filter residue remaining on the filter screen plate 15 and transports it to the slag box 25, and then it is sent to the slag storage box 36 by the slag conveying end. The above-mentioned equipment can realize automatic cleaning of the filter screen plate 15 during the screening process, saving working time and improving the work efficiency of feed pretreatment.

[0041] In order to ensure that the entire device can continue to perform screening work when scraping the feed residue at the scraper output end, the following features are also set:

[0042] The screening unit also includes a transverse shifter 12 arranged at the bottom of the screening transverse plate 13 and a material stopping frame 22 slidably arranged on the screening transverse plate 13, the material stopping frame 22 includes a plurality of material stopping bars 23 arranged at equal intervals and two connecting transverse plates 24 fixedly arranged at both ends of all the material stopping bars 23, the transverse shifter 12 has a transverse shift output end, the transverse shift output end is connected to the material stopping bar 23, and the size of the material stopping bar 23 is the same as the size of the accommodating long groove 14.

[0043] It should be noted that the number of the blocking strips 23 is half the number of the accommodating long slots 14, and the distance between every two blocking strips 23 is twice the distance between every two accommodating long slots 14. Under normal circumstances, all the blocking strips 23 will not block the accommodating long slots 14. When the filter screen plate 15 needs to be cleaned, the transverse shifter 12 drives the blocking rack 22 to move horizontally, and the blocking rack 22 moves horizontally so that the blocking strips 23 block half of the accommodating long slots 14, and then the scraper mechanism operates to clean the blocked filter screen plate 15. After waiting for the cleaning of this half, the transverse shifter 12 drives the blocking rack 22 to move horizontally again, so that the blocking strips 23 block the other half of the filter screen plate 15, so that the filter screen plate 15 can be cleaned without stopping the equipment.

[0044] In order to show the detailed structure of the traverse device 12, the following features are also specifically provided:

[0045] The transverse shifter 12 includes two push rods 18 symmetrically fixedly arranged at the bottom of the screening transverse plate 13, and two symmetrically arranged limiting transverse grooves 16 (such as Fig. 9 As shown), a limiting column 20 slidably disposed in each limiting transverse groove 16 and a connecting frame 19 fixedly disposed at the bottom of each limiting column 20, the connecting frame 19 is fixedly connected to the pushing output end of the push rod 18, and the limiting column 20 corresponds to and is fixedly connected to the connecting transverse plate 24 one by one.

[0046] When the device is running, the push rod 18 moves to drive the connecting frame 19 to move, the connecting frame 19 moves to drive the limiting column 20 to move, and the limiting column 20 moves to drive the material blocking frame 22 to move.

[0047] In order to prevent the screened feed from falling into the limiting transverse groove 16 when the device is running, the following features are also specifically provided:

[0048] Two elastic sealing bands 17 are symmetrically arranged in the limiting transverse groove 16 , one end of the elastic sealing band 17 is fixedly connected to the limiting column 20 , and the other end is fixedly connected to the groove wall of the limiting transverse groove 16 .

[0049] When the device is screening, the elastic sealing belt 17 blocks the feed from entering, preventing the feed from falling directly into the discharge bottom box 2 without being screened.

[0050] In order to show the detailed structure of the scraping mechanism, the following features are also set:

[0051] The scraping mechanism includes two wedge-shaped sliders 30 (such as Fig.11 As shown), a bearing support plate 26 slidingly arranged on two wedge-shaped sliders 30, a plurality of slag receiving boxes 27 arranged at equal intervals along the bearing support plate 26, a slag feeding hose 29 fixedly arranged at the bottom of each slag receiving box 27, a slag scraper plate 28 rotatably arranged in each slag receiving box 27 by a torsion spring, and two supporting slide bars 21 symmetrically arranged between two connecting frames 19, the bearing support plate 26 is slidably connected to the two supporting slide bars 21 through a linear bearing, the number of slag receiving boxes 27 is the same as the number of material blocking bars 23 and corresponds one to one, one end of the slag feeding hose 29 is connected to the inside of the slag receiving box 27, and the other end is connected to the inside of the slag feeding box 25.

[0052] When the connecting frame 19 moves, the connecting frame 19 drives the two supporting slide bars 21 to move horizontally at the same time, and the supporting slide bar 21 moves horizontally and then drives the supporting support plate 26 to move horizontally, thereby ensuring that when the blocking bar 23 blocks the filter screen plate 15, the slag box 27 can be located under the blocked filter screen plate 15, so that the feed filter residue can be cleaned smoothly. After that, the reciprocating output end drives the slag delivery box 25 to move, and the movement of the slag delivery box 25 drives the supporting support plate 26 to move, and then drives all the slag receiving boxes 27 to move, and then the feed filter residue remaining on the filter screen plate 15 is scraped off by the scraper plate 28 and falls into the slag receiving box 27, and then is delivered to the slag delivery box 25 by the slag delivery hose 29.

[0053] In order to show the detailed structure of the slag delivery output end, the following features are also set:

[0054] The screening unit also includes a mounting shaft 31 rotatably disposed in the slag delivery box 25, a spiral blade 32 fixedly disposed on the mounting shaft 31, a transmission gear 33 coaxially fixedly disposed at both ends of the mounting shaft 31, a support plate 41 disposed above each transmission gear 33 and fixedly connected to the side wall of the screening box 3, and a transmission rack 42 (such as a transmission rack 42 fixedly disposed on each support plate 41). Figure 4 As shown in the figure, a slag discharge port 35 is provided at both ends of the slag delivery box 25, a slag storage box 36 is fixedly covered on the slag discharge port 35, and a transmission gear 33 is meshed with a transmission rack 42.

[0055] When the slag box 25 is moved by the reciprocating output end, the transmission gear 33 engages the transmission rack 42 to rotate, thereby driving the mounting shaft 31 to rotate. The rotation of the mounting shaft 31 causes the spiral blade 32 to rotate. The spiral blade 32 rotates and then sends the feed filter residue in the slag box 25 along the length direction of the slag box 25 into the slag storage box 36. Since the slag box 25 moves back and forth, the feed filter residue will be sent to the two slag storage boxes 36 respectively during the reciprocating movement of the slag box 25. The workers only need to open the slag storage box 36 regularly for cleaning, and there is no need to disassemble the filter screen plate 15 for cleaning, which saves working time.

[0056] In order to show the detailed structure of the mobile mechanism, the following features are also set:

[0057] The moving mechanism includes a driving motor 9 fixedly arranged on the side wall of the screening box 3, a reciprocating screw rod 10 rotatably arranged on one side wall of the screening box 3 through a bearing, and a limiting slide bar 11 fixedly arranged on a side wall of the screening box 3 away from the reciprocating screw rod 10 through a bracket. A slide groove for sliding a slag box 25 is provided on the side wall of the screening box 3, and an elastic soft belt 34 is provided in the slide groove. One end of the slag box 25 is threadedly connected to the reciprocating screw rod 10 through a threaded sleeve, and the other end is slidably connected to the limiting slide bar 11 through a linear bearing. The output shaft of the driving motor 9 is connected to the reciprocating screw rod 10 through a reduction gear box.

[0058] When the device is running, the driving motor 9 drives the reciprocating screw 10 to rotate through the reduction gear box. The rotation of the reciprocating screw 10 causes the slag box 25 to move in the slide groove (this movement is carried out along the axial direction of the reciprocating screw 10). When the slag box 25 moves, the bearing support plate 26 also slides on the supporting slide bar 21, and the setting of the elastic soft belt 34 prevents feed from splashing during the screening process.

[0059] In order to ensure that the feed filter residue scraped off by the scraper plate 28 can better enter the residue delivery box 25, the following features are also specifically provided:

[0060] A mounting groove 37 is provided at the bottom of the slag delivery box 25 , a ventilation arc plate 38 is fixedly provided in the mounting groove 37 , an exhaust box 40 is fixedly provided on the mounting groove 37 , and an exhaust fan 39 is fixedly provided beside the exhaust box 40 .

[0061] When scraping off the feed filter residue, the vacuum fan 39 runs, and exhausts air through the exhaust box 40 and the ventilation arc plate 38, causing a certain negative pressure to be generated in the residue delivery box 25, and then a certain suction force is generated at the bottom of the residue receiving box 27 through the residue delivery hose 29, so that when the scraper plate 28 scrapes off the feed filter residue, the feed filter residue can enter the residue delivery box 25 more smoothly, and the fallen feed filter residue will also be blocked by the ventilation arc plate 38, and then rotated by the spiral blade 32 to be delivered to the residue storage box 36.

[0062] In order to ensure that the slag storage box 36 can move more stably with the slag delivery box 25 when the device is running, the following features are also specifically set:

[0063] Two limiting slide plates 6 are fixedly arranged on the screening box 3 in a symmetrical state. The limiting slide plates 6 correspond to the slag storage boxes 36 one by one and are slidably connected.

[0064] When the slag delivery box 25 moves, the slag storage box 36 can slide on the limiting slide plate 6, so as to ensure the stable operation of the equipment and prevent the feed filter residue in the slag storage box 36 from falling when too much is accumulated.

[0065] A feed pretreatment process for aquaculture with screening function comprises the following steps:

[0066] S1: Feed that needs to be pretreated is fed from the feeding port 7;

[0067] S2: The vibration motor 4 is started, and the device starts to screen the feed. Impurities in the feed, damp and agglomerated feed, and other impurities that do not meet the use requirements are discharged from the slag outlet 5. The screened feed falls into the discharge bottom box 2 and is finally discharged from the discharge outlet 8 for use;

[0068] S3: During the screening process, the scraping mechanism cleans the feed residue on the filter screen plate 15 in real time;

[0069] S4: Complete the pretreatment of feed.

[0070] The working principle of this device is as follows: the feed to be processed is put into the feeding port 7, and then the vibration motor 4 is started. The operation of the vibration motor 4 causes the screening box 3 and the discharge bottom box 2 to vibrate, so that the feed can be screened through the filter screen plate 15. Impurities in the feed, lumps caused by moisture, and other impurities that cannot pass through the filter screen plate 15 will be discharged through the slag outlet 5. The feed that passes through the filter screen plate 15 will fall into the discharge bottom box 2 and finally be discharged from the discharge port 8. When the filter screen plate 15 needs to be cleaned, the push rod 18 drives the connecting frame 19 to move, and the movement of the connecting frame 19 drives the limit column 20 to move, and the movement of the limit column 20 further drives the material blocking frame 22 to move, and the material blocking frame 22 moves horizontally so that the material blocking strip 23 blocks half of the number of the accommodating long grooves 14. At the same time, the connecting frame 19 drives the two supporting slide bars 21 to move horizontally at the same time, and the two supporting slide bars 21 move horizontally to drive the bearing support plate 26 to slide on the wedge-shaped slide block 30, so that when the material blocking strip 23 blocks the filter screen plate 15, the slag box 27 can be under the blocked filter screen plate 15. Then the driving motor 9 drives the reciprocating screw 10 to rotate through the reduction gear box. The rotation of the reciprocating screw 10 causes the slag box 25 to move in the slide groove. The movement of the slag box 25 drives the bearing support plate 26 to move, and then drives all the slag receiving boxes 27 to move. The feed filter residue remaining on the filter screen plate 15 is scraped off by the scraper plate 28 and falls into the slag receiving box 27, and then is sent into the slag box 25 by the slag feeding hose 29. When scraping off the feed filter residue, the vacuum fan 39 also runs, so that a certain suction force is generated at the bottom of the slag receiving box 27, so that when the scraper plate 28 scrapes off the feed filter residue, the feed filter residue can enter the slag box 25 more smoothly. While the slag box 25 is moving, the transmission gear 33 engages with the transmission rack 42 to rotate, thereby driving the installation shaft 31 to rotate. The rotation of the installation shaft 31 causes the spiral blade 32 to rotate. The spiral blade 32 rotates and then sends the feed filter residue in the slag box 25 along the length direction of the slag box 25 into the slag storage box 36. After waiting for half of the filter screen plate 15 to be cleaned, the push rod 18 runs again, driving the material blocking bar 23 to cover the other half of the filter screen plate 15, and then repeating the above steps, that is, automatically cleaning the filter screen plate 15 during the screening process.

[0071] The above embodiments only express one or several implementation modes of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent shall be subject to the attached claims.

Claims

1. A feed pretreatment device for aquaculture with screening function, characterized in that: The present invention comprises a machine base, a discharge bottom box elastically arranged above the machine base, a screening box fixedly arranged on the discharge bottom box, a feeding port arranged on the screening box, a vibration motor fixedly arranged on the side wall of the screening box, a moving mechanism arranged on the side wall of the screening box and a screening unit arranged inside the screening box, the screening box is provided with a slag discharge port, the discharge bottom box is provided with a discharge port, the moving mechanism has a reciprocating output end, the screening unit comprises a screening cross plate fixedly arranged in the screening box, a slag delivery box slidably arranged on the screening box, two slag storage boxes fixedly arranged at both ends of the slag delivery box and a slag scraping mechanism for conveying feed filter residue into the slag delivery box, a plurality of accommodating long grooves are evenly spaced along the width of the screening cross plate, a filter screen plate is fixedly arranged in each accommodating long groove, the slag scraping mechanism has a slag scraping output end, the screening unit has a slag delivery end, the slag scraping output end is used to scrape off the feed filter residue on the filter screen plate, the reciprocating output end is connected with the slag delivery box, and the slag delivery end is used to convey the feed filter residue in the slag delivery box into the slag storage box; The screening unit also includes a transverse shifter arranged at the bottom of the screening transverse plate and a material blocking frame slidably arranged on the screening transverse plate. The transverse shifter includes two push rods symmetrically fixedly arranged at the bottom of the screening transverse plate, two symmetrically opened limit transverse grooves at both ends of the screening transverse plate, a limit column slidably arranged in each limit transverse groove and a connecting frame fixedly arranged at the bottom of each limit column. The connecting frame is fixedly connected to the pushing output end of the push rod, and the limit column corresponds to the connecting transverse plate one by one and is fixedly connected.

2. The aquaculture feed pretreatment device with screening function according to claim 1, characterized in that: The material stop rack includes a plurality of material stop bars arranged at equal intervals and two connecting transverse plates fixedly arranged at both ends of all the material stop bars. The transverse shifter has a transverse shift output end connected to the material stop bars. The size of the material stop bars is the same as the size of the accommodating long slot.

3. The aquaculture feed pretreatment device with screening function according to claim 2, characterized in that: Two elastic sealing bands are symmetrically arranged in the limiting transverse groove, one end of the elastic sealing band is fixedly connected to the limiting column, and the other end is fixedly connected to the groove wall of the limiting transverse groove.

4. The aquaculture feed pretreatment device with screening function according to claim 3, characterized in that: The slag scraping mechanism includes two wedge-shaped sliders symmetrically fixed on the top of the slag feeding box, a bearing support plate slidably arranged on the two wedge-shaped sliders, a plurality of slag receiving boxes arranged at equal intervals along the bearing support plate, a slag feeding hose fixedly arranged at the bottom of each slag receiving box, a slag scraping plate rotatably arranged in each slag receiving box by a torsion spring, and two supporting slide bars symmetrically arranged between two connecting frames, the bearing support plate is slidably connected to the two supporting slide bars through a linear bearing, the number of slag receiving boxes is the same as the number of material blocking bars and corresponds one to one, one end of the slag feeding hose is connected to the interior of the slag receiving box, and the other end is connected to the interior of the slag feeding box.

5. The aquaculture feed pretreatment device with screening function according to claim 4, characterized in that: The screening unit also includes a mounting shaft rotatably arranged in the slag feeding box, a spiral blade fixedly arranged on the mounting shaft, a transmission gear coaxially fixedly arranged at both ends of the mounting shaft, a supporting plate arranged above each transmission gear and fixedly connected to the side wall of the screening box, a transmission rack fixedly arranged on each supporting plate, and a slag discharge port opened at both ends of the slag feeding box, a slag storage box fixed cover is arranged on the slag discharge port, and the transmission gear is meshed with the transmission rack.

6. The aquaculture feed pretreatment device with screening function according to claim 5, characterized in that: The moving mechanism includes a driving motor fixed on the side wall of the screening box, a reciprocating screw rod rotatably arranged on one side wall of the screening box through a bearing, and a limiting slide bar fixed by a bracket on a side wall of the screening box away from the reciprocating screw rod. A slide groove for sliding a slag box is provided on the side wall of the screening box, and an elastic soft belt is provided in the slide groove. One end of the slag box is threadedly connected to the reciprocating screw rod through a threaded sleeve, and the other end is slidably connected to the limiting slide bar through a linear bearing. The output shaft of the driving motor is connected to the reciprocating screw rod through a reduction gear box.

7. The aquaculture feed pretreatment device with screening function according to claim 6, characterized in that: A mounting groove is provided at the bottom of the slag delivery box, a ventilation arc plate is fixedly arranged in the mounting groove, an exhaust box is fixedly arranged on the mounting groove, and an exhaust fan is fixedly arranged beside the exhaust box.

8. The aquaculture feed pretreatment device with screening function according to claim 7, characterized in that: Two limiting slide plates are fixedly arranged on the screening box in a symmetrical state, and the limiting slide plates correspond to the slag storage boxes one by one and are slidably connected.

9. A process for preprocessing feed for aquaculture with screening function, comprising the device for preprocessing feed for aquaculture with screening function as claimed in claim 1, characterized in that: The following steps are involved: S: Feed that needs to be pre-treated is fed from the feeding port; S: The vibration motor starts, and the device begins to screen the feed. Impurities in the feed, damp and agglomerated feed, and other impurities that do not meet the use requirements are discharged from the slag outlet. The screened feed falls into the discharge bottom box and is finally discharged from the discharge outlet for use. S: During the screening process, the scraper mechanism cleans the feed residue on the filter screen in real time; S: Complete the pre-processing of feed.

Images