A fish meal processing pulverizing device

Abstract

The application belongs to the technical field of material grinding and crushing, and particularly relates to a crushing device for fish meal processing, which comprises an automatic pulse spraying system, a double-path spraying pipe, a screen grading mechanism and a grinding and crushing mechanism. The automatic pulse spraying system comprises a gas compression assembly, a jet gas valve assembly, a wind pump assembly and a spraying shell. The gas compression assembly is rotationally arranged in the spraying shell. The jet gas valve assembly is symmetrically arranged in the gas compression assembly. The wind pump assembly is arranged on the spraying shell. In the process of continuously conveying materials through airflow, the device can also intermittently generate pulse airflow with increased pressure. On the one hand, the device can reduce the contact between powder materials and the pipe wall. On the other hand, the device can also strip the materials that have been attached. Through the structural design of the automatic pulse spraying system, the device can automatically complete the gas compression release and turning of the compression chamber while the central rotating shaft of the wind pump body rotates.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of material grinding and crushing, and particularly relates to a crushing device for fish meal processing. BACKGROUND

[0002] Fish meal is a powder obtained by grinding and drying low-fat fish cut into blocks, and can be used as an additive ingredient of food. The powder obtained by grinding such an organic substance has certain adhesion, and is easily attached and adhered to the surface of other objects after absorbing part of the moisture in the air. Therefore, the powder is not suitable for being pushed by gravity or pressure at one end during conveying, because this will increase the contact pressure between the material and the pipe wall, making it more likely to adhere. Relatively speaking, the scheme of conveying the material by air flow is more comprehensive.

[0003] However, a small amount of material will still adhere to the pipe wall during long-term use by the air flow wrapping method. How to further clean it is a problem that needs to be considered by those skilled in the art.

[0004] In addition, since the air flow wrapping method is mainly used to convey the material from bottom to top, the material only has one opportunity to hit the screen, and a small amount of qualified material may fall back with the large particles. Therefore, the problem of fully screening the material during inverted conveying needs to be solved. SUMMARY

[0005] In view of the above problems, the present application provides a crushing device for fish meal processing. The device can generate pulse air flow with increased pressure intermittently during the process of conveying the material by continuous air flow, which can reduce the contact between the powder material and the pipe wall and strip the adhered material. Furthermore, the device can automatically complete the compression and release of the gas in the compression chamber and the deflection of the center shaft of the air pump body through the structural design of the automatic pulse blowing system.

[0006] The double-screening net design can perform secondary screening on the material, thereby avoiding the problem of incomplete screening caused by the particles passing through the dome part and entering the bottom groove.

[0007] The technical scheme adopted by the present application is as follows: the present application provides a crushing device for fish meal processing, which comprises an automatic pulse blowing system, a double-path blowing pipe, a screen grading mechanism, and a grinding and crushing mechanism. The automatic pulse blowing system comprises a gas compression assembly, a jet air valve assembly, an air pump assembly, and a blowing shell. The gas compression assembly is rotatably arranged in the blowing shell. The jet air valve assembly is symmetrically arranged in the gas compression assembly. The air pump assembly is arranged on the blowing shell.

[0008] The gas compression assembly comprises a compression chamber, a screw rod and a piston plate, the compression chamber is rotationally arranged in the blowing shell, the screw rod is rotationally arranged in the compression chamber, the piston plate is threadedly connected with the screw rod, and the piston plate is axially slidably arranged in the compression chamber.

[0009] By the sliding of the piston plate in the compression chamber, the air pressure of the chambers on both sides of the piston plate can be changed, thereby realizing the technical effect of compressing and releasing the gas in a concentrated manner. Since the screw rod has the effect of amplifying torque during transmission, the airflow can be pulsed to impact at a pressure exceeding the upper limit of the wind pump body through continuous accumulation, thereby achieving the purpose of cleaning the pipeline.

[0010] The jet gas valve assembly comprises a rubber valve body and an elastic framework, the rubber valve body is fixedly connected to the inside of the outer ring of the compression chamber and in contact with the outside of the inner ring of the compression chamber, and the elastic framework is arranged on the inside of the rubber valve body.

[0011] The rubber valve body and the elastic framework are in the shape of C as a whole, the end of the rubber valve body is in contact with the inner ring of the compression chamber and faces the inside, so that the jet gas valve assembly on the side of the movement direction can be kept closed for a long time during the transverse movement of the piston plate until the pressure in the chamber reaches a certain threshold value; the jet gas valve assembly on the other side is easy to open under the action of negative pressure, which can just avoid hindering the movement of the piston plate.

[0012] The elastic framework not only increases the opening threshold of the jet gas valve assembly, but also, when the jet gas valve assembly bends outward, maintains the opening state of the rubber valve body through its own shape until the gas is almost completely discharged.

[0013] As a preferred, the wind pump assembly comprises a wind pump body, a connecting head and a return spring, the wind pump body is fixedly connected to the blowing shell, one end of the wind pump body is provided with a sliding sleeve, a central rotating shaft is arranged in the wind pump body, a flange portion is arranged at the end of the central rotating shaft, the flange portion is slidingly arranged in the sliding sleeve, the return spring is arranged between the bottom of the sliding sleeve and the flange portion, and the connecting head is fixedly connected to the other end of the central rotating shaft.

[0014] The wind pump body can not only provide power for the conveying of materials through continuous airflow, but also can simultaneously drive the rotation of the connecting head, thereby driving the whole automatic pulse blowing system.

[0015] Further, the double-way injection pipe is composed of a center valve body, a pulse pipe and a feeding pipe, the center valve body is arranged at the bottom of the grinding and crushing mechanism, the part of the center valve body connected with the grinding and crushing mechanism is provided with a one-way valve plate, the feeding pipe is arranged between the center valve body and the screen grading mechanism, the pulse pipe is arranged between the injection shell and the center valve body, and the pulse pipe is provided with a back pressure pipe, the end of the back pressure pipe is communicated with the cavity where the reset spring is arranged.

[0016] When the continuous airflow passes through the feeding pipe, the material can be transported, compared with extrusion or gravity transportation, the contact between the material and the pipe wall can be significantly reduced; meanwhile, through the intermittent pulse injection, the material which has been adhered can be forced to be peeled off, and the probability of the material adhering to the pipe wall is further reduced.

[0017] As preferred, the inner ring and the outer ring of the compression chamber are connected through a retainer, the gas compression assembly further comprises a bearing arranged between the inner ring of the compression chamber and the lead screw, the upper part of the compression chamber is provided with a reversing rotary shaft, the compression chamber is arranged in the injection shell through the rotation of the reversing rotary shaft, the grinding and crushing mechanism comprises a grinding driving assembly, and the compression chamber and the grinding driving assembly are rotationally connected.

[0018] As further preferred of the application, the two ends of the compression chamber are further provided with arc-shaped interfaces, and the end of the pulse pipe is provided with an arc-shaped part matched with the arc-shaped interfaces, the arc-shaped part can form an airflow channel when being attached with the arc-shaped interfaces.

[0019] When the high-pressure airflow enters the pulse pipe, part of the gas will impact the flange part through the back pressure pipe, and the connecting head and the center rotary shaft will be temporarily retracted, and the rotation of the compression chamber is automatically realized through the rotation driving of the grinding motor.

[0020] The two ends of the lead screw are symmetrically provided with a cylindrical part and a polygonal part, the connecting head is provided with a circular groove with a diameter matched with the cylindrical part and a polygonal groove matched with the polygonal part, and the two sides of the piston plate are symmetrically provided with sealing sleeves.

[0021] The circular groove and the polygonal groove are matched with the cylindrical part and the polygonal part respectively, the locking process of the lead screw can be connected in steps, so that the problem that the lead screw may miss the connecting head when the angle of the polygonal part does not correspond can be avoided.

[0022] Further, the screen grading mechanism comprises an airflow assembly and a double-screening net, the airflow assembly comprises a screening shell and a screening fan, the screening shell is arranged on the rack, the screening fan is arranged at the bottom of the screening shell, and the double-screening net is fixedly connected in the screening shell.

[0023] As preferred, the double screening net comprises a dome-shaped top and a bottom slot with micro-holes, and a closed first baffle and a second baffle, and the lower part of the blowing shell is provided with a directional blowing port connected with the body of the air pump.

[0024] Through the design of the double screening net, the material can be screened twice, thereby avoiding the problem that some particles passing through the dome-shaped top enter the bottom slot and the screening is not complete.

[0025] Further, the grinding and crushing mechanism further comprises a crushing shell and a double-disc grinding assembly, the crushing shell is arranged on the rack, the top of the crushing shell is provided with a feeding hopper, the grinding drive assembly is arranged in the crushing shell, and the double-disc grinding assembly is arranged on the grinding drive assembly.

[0026] As preferred, the double-disc grinding assembly comprises a fixed disc and a rotating disc, the rotating disc is arranged above the fixed disc, the rotating disc is provided with a baffle, and the bottom of the feeding hopper is located in the baffle.

[0027] As further preferred, the grinding drive assembly comprises a grinding motor and a closed chamber, the closed chamber is fixedly connected to the crushing shell through a holder, the grinding motor is fixedly connected to the closed chamber through the holder, the fixed disc is fixedly connected to the upper part of the closed chamber, the rotating disc is provided with a support, the rotating disc is fixedly connected through the support and the output shaft of the grinding motor, and the output shaft at the other end of the grinding motor is rotatably arranged at the top of the reversing shaft.

[0028] The beneficial effects achieved by the above structure are as follows:

[0029] (1) By sliding of the piston plate in the compression chamber, the air pressure of the chambers on both sides of the piston plate can be changed, thereby achieving the technical effect of compressing the gas and releasing it in a concentrated manner. Since the screw rod has the effect of amplifying torque during transmission, the gas flow can be impacted in a pulse manner at a pressure exceeding the upper limit of the air pump body through continuous accumulation, thereby achieving the purpose of cleaning the pipeline.

[0030] (2) The rubber valve body and the elastic framework are in a C shape as a whole, the end of the rubber valve body is attached to the inner ring of the compression chamber and faces the inside, so that the jet-type air valve assembly on the side of the movement direction can be kept closed for a long time during the transverse movement of the piston plate until the pressure in the chamber reaches a certain threshold value; the jet-type air valve assembly on the other side is easy to open under the action of negative pressure, which can just avoid hindering the movement of the piston plate.

[0031] (3) The elastic framework not only can increase the opening threshold of the jet-type air valve assembly, but also can keep the rubber valve body in an open state when the jet-type air valve assembly bends outward through its shape until the gas is almost completely discharged.

[0032] (4) through the wind pump body one hand can through the sustained airflow for the conveying of materials to provide power, the other hand can also drive the connector to rotate simultaneously, and then the overall drive of the automatic pulse type blowing system.

[0033] (5) when there is a sustained airflow through the feeding pipe, the material can be transported, compared with extrusion or gravity conveying, the contact between the material and the pipe wall can be significantly reduced; at the same time, through intermittent pulse blowing, the material that has been adhered can be forced to separate, further reducing the probability of material adhering to the pipe wall.

[0034] (6) when the high-pressure airflow enters the pulse pipe, part of the gas will impact the flange through the back pressure pipe, and make the connector and the center shaft retract temporarily, cooperate with the grinding motor to drive the rotation of the compression chamber, and automatically realize the rotation switching of the compression chamber.

[0035] (7) the circular sink and the polygonal sink are matched with the cylindrical part and the polygonal part respectively, which can connect the locking process of the screw in steps, so as to avoid the problem that the screw may miss the connector when the angle of the polygonal part does not correspond.

[0036] (8) through the design of double screening net, the material can be screened twice, so as to avoid the problem that part of the particles that can pass through the dome enter the bottom groove and the screening is not complete. BRIEF DESCRIPTION OF DRAWINGS

[0037] Figure 1 It is a perspective view of a fish meal processing pulverizing device proposed in the application;

[0038] Figure 2 It is a front view of a fish meal processing pulverizing device proposed in the application;

[0039] Figure 3 It is Figure 2 the sectional view along the cutting line A-A;

[0040] Figure 4 It is a half-section structure schematic view of a fish meal processing pulverizing device proposed in the application;

[0041] Figure 5 It is Figure 3 the local enlarged view of I;

[0042] Figure 6 It is Figure 3 the local enlarged view of II;

[0043] Figure 7 It is Figure 4 the local enlarged view of III;

[0044] Figure 8 It is Figure 4A local enlarged view of the middle IV;

[0045] Figure 9 A Figure 3 A local enlarged view of the middle V;

[0046] Figure 10 A schematic view of the opening and closing of the jet air valve assembly;

[0047] Figure 11 A schematic view of the planar expansion of the elastic framework;

[0048] Figure 12 A schematic view of the air flow direction in the screening shell.

[0049] 1, automatic pulse blowing system, 2, double-way blowing pipe, 3, screen grading mechanism, 4, grinding and crushing mechanism, 5, gas compression assembly, 6, jet air valve assembly, 7, air pump assembly, 8, blowing shell, 9, compression chamber, 10, bearing, 11, screw rod, 12, piston plate, 13, rubber valve body, 14, elastic framework, 15, air pump body, 16, connecting head, 17, reset spring, 18, directional blowing port, 19, reversing shaft, 20, arc-shaped interface, 21, cylindrical part, 22, polygonal part, 23, sealing sleeve, 24, sliding sleeve, 25, central shaft, 26, flange part, 27, circular groove, 28, polygonal groove, 29, central valve body, 30, pulse pipe, 31, feeding pipe, 32, air flow assembly, 33, double screen, 34, screening shell, 35, screening fan, 36, dome part, 37, bottom groove, 38, first baffle, 39, second baffle, 40, crushing shell, 41, double-disc grinding assembly, 42, grinding drive assembly, 43, feeding hopper, 44, fixed disc, 45, rotating disc, 46, grinding motor, 47, closed chamber, 48, baffle, 49, support, 50, back pressure pipe.

[0050] The accompanying drawings are included to provide a further understanding of the application, and constitute a part of this specification, illustrate embodiments of the application, and together with the description serve to explain the application, and do not limit the application. DETAILED DESCRIPTION

[0051] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only a part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the application.

[0052] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0053] As shown in Figures 1-9 The present application provides a crushing device for fish meal processing, which comprises an automatic pulse blowing system 1, a double-path blowing pipe 2, a screen grading mechanism 3 and a grinding and crushing mechanism 4. The automatic pulse blowing system 1 comprises a gas compression assembly 5, a jet gas valve assembly 6, a wind pump assembly 7 and a blowing shell 8. The gas compression assembly 5 is rotatably arranged in the blowing shell 8. The jet gas valve assembly 6 is symmetrically arranged in the gas compression assembly 5. The wind pump assembly 7 is arranged on the blowing shell 8.

[0054] The gas compression assembly 5 comprises a compression chamber 9, a lead screw 11 and a piston plate 12. The compression chamber 9 is rotatably arranged in the blowing shell 8. The lead screw 11 is rotatably arranged in the compression chamber 9. The piston plate 12 is threadedly connected with the lead screw 11. The piston plate 12 is axially slidably arranged in the compression chamber 9.

[0055] Through the sliding of the piston plate 12 in the compression chamber 9, the air pressure of the chambers on both sides of the piston plate 12 can be changed, thereby realizing the technical effect of compressing and concentratedly releasing the gas. Since the lead screw 11 has the effect of amplifying torque during transmission, the gas flow can be pulsedly impacted at a pressure exceeding the upper limit of the wind pump body 15 in a continuous accumulation manner, thereby realizing the purpose of cleaning the pipeline.

[0056] The jet gas valve assembly 6 comprises a rubber valve body 13 and an elastic skeleton 14. The rubber valve body 13 is fixedly connected to the inner part of the outer ring of the compression chamber 9 and is in contact with the outer part of the inner ring of the compression chamber 9. The elastic skeleton 14 is arrayed on the inner side of the rubber valve body 13.

[0057] The rubber valve body 13 and the elastic skeleton 14 are integrally C-shaped. The end of the rubber valve body 13 is in contact with the inner ring of the compression chamber 9 and faces the inner side. Therefore, during the transverse movement of the piston plate 12, the jet gas valve assembly 6 on the side of the movement direction can be kept closed for a long time until the pressure in the chamber reaches a certain threshold. The jet gas valve assembly 6 on the other side is easily opened under the action of negative pressure, which can just avoid hindering the movement of the piston plate 12.

[0058] The elastic skeleton 14 not only can increase the opening threshold of the jet gas valve assembly 6, but also can keep the opening state of the rubber valve body 13 through its shape when the jet gas valve assembly 6 bends outward, until the gas is almost completely discharged.

[0059] The air pump assembly 7 comprises an air pump body 15, a connecting head 16 and a reset spring 17, the air pump body 15 is fixedly connected to the blowing shell 8, one end of the air pump body 15 is provided with a sliding sleeve 24, a central rotating shaft 25 is arranged in the air pump body 15, the end of the central rotating shaft 25 is provided with a flange part 26, the flange part 26 is clamped in the sliding sleeve 24, the reset spring 17 is arranged between the bottom of the sliding sleeve 24 and the flange part 26, and the connecting head 16 is fixedly connected to the other end of the central rotating shaft 25.

[0060] The air pump body 15 can provide power for the conveying of the material through the continuous airflow, and can also drive the connecting head 16 to rotate at the same time, thereby driving the automatic pulse blowing system 1 as a whole.

[0061] The double-way blowing pipe 2 is composed of a central valve body 29, a pulse pipe 30 and a feeding pipe 31, the central valve body 29 is arranged at the bottom of the grinding and crushing mechanism 4, the part connected with the grinding and crushing mechanism 4 of the central valve body 29 is provided with a one-way valve plate, the feeding pipe 31 is arranged between the central valve body 29 and the screen grading mechanism 3, the pulse pipe 30 is arranged between the blowing shell 8 and the central valve body 29, the pulse pipe 30 is provided with a back pressure pipe 50, and the end of the back pressure pipe 50 is communicated with the cavity where the reset spring 17 is arranged.

[0062] When the continuous airflow passes through the feeding pipe 31, the material can be conveyed, and compared with extrusion or gravity conveying, the contact between the material and the pipe wall can be significantly reduced; at the same time, through the intermittent pulse blowing, the material that has been adhered can be forcibly peeled off, further reducing the probability of the material adhering to the pipe wall.

[0063] The inner ring and the outer ring of the compression chamber 9 are connected through a retainer, the air compression assembly 5 further comprises a bearing 10, the bearing 10 is arranged between the inner ring of the compression chamber 9 and a lead screw 11, a reversing rotating shaft 19 is arranged above the compression chamber 9, the compression chamber 9 is rotatably arranged in the blowing shell 8 through the reversing rotating shaft 19, the grinding and crushing mechanism 4 comprises a grinding driving assembly 42, and the compression chamber 9 and the grinding driving assembly 42 are rotatably connected;

[0064] Arc-shaped interfaces 20 are further arranged at both ends of the compression chamber 9, and the end of the pulse pipe 30 is provided with an arc-shaped part matched with the arc-shaped interfaces 20, which can form an airflow passage when the arc-shaped part is attached to the arc-shaped interfaces 20.

[0065] When the high-pressure airflow enters the pulse pipe 30, part of the gas will impact the flange part 26 through the back pressure pipe 50, and the connecting head 16 and the central rotating shaft 25 will be temporarily retracted, cooperating with the rotation driving of the compression chamber 9 by the grinding motor 46, to automatically realize the rotation reversing of the compression chamber 9.

[0066] The two ends of the screw rod 11 are symmetrically provided with a cylindrical part 21 and a polygonal part 22, the connecting head 16 is provided with a circular groove 27 with a diameter matching the cylindrical part 21 and a polygonal groove 28 matching the polygonal part 22, and the two sides of the piston plate 12 are symmetrically provided with sealing sleeves 23.

[0067] The circular groove 27 and the polygonal groove 28 respectively match the cylindrical part 21 and the polygonal part 22, and can step by step connect the locking process of the screw rod 11, thereby avoiding the problem that the screw rod 11 may miss the connecting head 16 when the angle of the polygonal part 22 does not correspond.

[0068] The screen grading mechanism 3 comprises an airflow assembly 32 and a double-screening net 33, the airflow assembly 32 comprises a screening housing 34 and a screening fan 35, the screening housing 34 is arranged on the rack, the screening fan 35 is arranged at the bottom of the screening housing 34, and the double-screening net 33 is fixedly connected in the screening housing 34.

[0069] The double-screening net 33 comprises a dome part 36 with micropores and a bottom groove 37, and closed first and second baffles 38 and 39, and the lower portion of the blowing housing 8 is provided with a directional blowing port 18 connected with the fan pump body 15.

[0070] Through the design of the double-screening net 33, the material can be screened twice, thereby avoiding the problem that some particles that can pass through the dome part 36 enter the bottom groove 37 and the screening is not complete.

[0071] The grinding and crushing mechanism 4 further comprises a crushing housing 40 and a double-disc grinding assembly 41, the crushing housing 40 is arranged on the rack, the top of the crushing housing 40 is provided with a feeding hopper 43, a grinding driving assembly 42 is arranged in the crushing housing 40, and the double-disc grinding assembly 41 is arranged on the grinding driving assembly 42.

[0072] The double-disc grinding assembly 41 comprises a fixed disc 44 and a rotating disc 45, the rotating disc 45 is rotationally arranged above the fixed disc 44, the rotating disc 45 is provided with a baffle 48, and the bottom of the feeding hopper 43 is located in the baffle 48.

[0073] The grinding driving assembly 42 comprises a grinding motor 46 and an enclosed chamber 47, the enclosed chamber 47 is fixedly connected in the crushing housing 40 through a retainer, the grinding motor 46 is fixedly connected in the enclosed chamber 47 through the retainer, the fixed disc 44 is fixedly connected above the enclosed chamber 47, the rotating disc 45 is provided with a support 49, the rotating disc 45 is fixedly connected through the support 49 and the output shaft of the grinding motor 46, and the output shaft at the other end of the grinding motor 46 is rotationally arranged at the top of the reversing shaft 19.

[0074] As Figure 10As shown, the dashed line represents the shape of the rubber valve body 13 and the elastic skeleton 14 after bending, when the air pressure in the cavity is less than the outside, the outside air can easily push the rubber valve body 13 to bend and inhale; when the air pressure in the cavity is greater than the outside, the internal air needs a lot of air pressure to push the rubber valve body 13 and the elastic skeleton 14 to bend towards the outside.

[0075] The elastic skeleton 14 is composed of a plurality of metal spring plates like Figure 11 As shown, the bottom two round holes are hinged, and the elastic skeleton 14 as a whole is arc-shaped. The characteristic of this metal spring plate is that it can bend in two directions and maintain its position (the deformation resistance of the two directions is not equal), while the rubber valve body 13 always has the characteristic of bending towards the inside.

[0076] Therefore, when the internal air pressure rises to a threshold value, the jet valve assembly 6 can bend towards the outside and remain open only when the resistance of the rubber valve body 13 and the elastic skeleton 14 is overcome. At this time, the elastic force of the rubber valve body 13 and the elastic skeleton 14 is opposite, and the elastic force of the rubber valve body 13 is slightly greater than that of the elastic skeleton 14. When the air thrust disappears, the elastic skeleton 14 will reset under the action of the elastic force of the rubber valve body 13.

[0077] As shown in Figure 12 The dashed line part represents the dome part 36 with micropores and the bottom groove 37, and the arrow represents the direction of the material and the airflow. After the material is ejected from the feeding pipe 31, it moves towards the dome part 36 under the action of the airflow. Most particles smaller than the micropores pass through the dome part 36, and a small amount of particles smaller than the micropores and large particles pass through the gap between the first baffle 38 and the second baffle 39 into the bottom groove 37, and then under the action of the airflow, they impact the edge of the dome part 36 again, thereby achieving full screening.

[0078] In specific use, first, the user needs to start the machine and send the material to be crushed and ground into the feeding hopper 43 through an external mechanism. Then the material will fall between the fixed disc 44 and the rotating disc 45 and be ground and crushed with the relative movement of the fixed disc 44 and the rotating disc 45. At the same time of the crushing movement, the ground material will move towards the edge of the double-disc grinding assembly 41 under the centrifugal force and the thrust of the new material until it falls;

[0079] When the air pump body 15 is working, it can continuously output airflow downward through the directional blowing port 18. The air inlet pipe of the screening fan 35 can be arranged outside the crushing shell 40. The crushed powder enters the center valve body 29 under the action of the airflow and is transported to the screening shell 34 through the feeding pipe 31. Since the end of the pulse pipe 30 is closed at this time, the airflow cannot enter the feeding pipe 31 from the center valve body 29. A one-way valve can also be provided as a redundant structure.

[0080] When the wind pump body 15 works, it will also rotate with the central rotating shaft 25. Since the central rotating shaft 25 is connected with the connecting head 16 and the lead screw 11, when the central rotating shaft 25 rotates, it will drive the lead screw 11 to rotate. In the initial state, the piston plate 12 is located at one end close to the wind pump body 15. With the rotation of the lead screw 11, the piston plate 12 will gradually slide towards the other end.

[0081] When the piston plate 12 slides, the air pressure on both sides will change. The air pressure on the side close to the wind pump body 15 will decrease, but since the direction of the rubber valve body 13 is designed, the external air can easily break through the rubber valve body 13 into the compression chamber 9, so the air pressure on this side is always slightly lower than the atmospheric pressure. The air pressure on the side away from the wind pump body 15 will increase, and when it is high enough to overcome the resistance of the rubber valve body 13 and the elastic framework 14, the rubber valve body 13 and the elastic framework 14 will open towards the outside and open the jet valve assembly 6. At this time, the gas in the chamber quickly passes through the pulse tube 30 and is discharged, stripping and cleaning the material adhered to the inner wall of the feeding pipe 31. In this process, the one-way valve of the central valve body 29 is closed, so the gas flow will not return to the crushing shell 40 through the central valve body 29.

[0082] When the compressed gas enters the pulse tube 30, a small amount of gas will enter the sliding sleeve 24 through the back pressure pipe 50 and impact the flange part 26, causing the connecting head 16 and the central rotating shaft 25 to retract temporarily (through the diameter and angle design of the back pressure pipe 50, the proportion of gas flow can be distributed). Since the output shaft of the grinding motor 46 rotates in the reversing shaft 19, it will apply a torque to the compression chamber 9. When the lead screw 11 and the connecting head 16 are connected, the compression chamber 9 cannot rotate. When the connecting head 16 and the lead screw 11 are separated, the compression chamber 9 will rotate under this torque. Until the other end of the lead screw 11 contacts the connecting head 16, the two are reconnected.

[0083] When the lead screw 11 and the connecting head 16 are connected, the polygonal part 22 will first push the connecting head 16 and the central rotating shaft 25 back, and then the polygonal part 22 will enter the circular groove 27 to complete the first stage of locking. Since the connecting head 16 is always rotating with the central rotating shaft 25, when the polygonal part 22 and the polygonal groove 28 are angle-matched, the central rotating shaft 25 is completely ejected, and the lead screw 11 and the connecting head 16 are connected. At this time, the piston plate 12 is located at one end close to the wind pump body 15, and the thread direction of the lead screw 11 is just right to make the connecting head 16 drive the piston plate 12 to slide towards the other end without changing the rotation direction.

[0084] In the process of continuously conveying materials with gas flow, the pulse compressed air can strip and clean the material adhered to the inner wall of the feeding pipe 31. When the screening fan 35 is turned on, the material in the gas flow assembly 32 always has a tendency to move upwards.

[0085] After the material is ejected from the feeding pipe 31, it moves towards the dome 36 under the action of the airflow. Most of the particles smaller than the micro-holes pass through the dome 36, and a small amount of particles smaller than the micro-holes and large particles pass through the gap between the first baffle 38 and the second baffle 39 into the bottom groove 37, and then impact the edge of the dome 36 again under the action of the airflow, thereby achieving sufficient screening.

[0086] The double-screening net 33 can be arranged in multiple groups in an array, each group having different micro-hole sizes to achieve different grading effects. The oversized particles can be re-milled after collection.

[0087] It should be noted that the relational terms herein such as first and second and the like are used solely to distinguish one entity or action from another, without necessarily requiring or implying any such actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0088] The above describes the present application and its embodiments, which are not limited, and the embodiments shown in the drawings are only one of the embodiments of the present application, and the actual structure is not limited thereto. In general, if a person skilled in the art is inspired by it, without departing from the purpose of the present application, without creative design, similar structure and embodiments of the technical solution can be designed, which should belong to the protection scope of the present application.

Claims

1. A pulverizing device for fishmeal processing, characterized in that: The system includes an automatic pulse jet system (1), a dual-path jet pipe (2), a screen grading mechanism (3), and a grinding and pulverizing mechanism (4). The automatic pulse jet system (1) includes a gas compression assembly (5), a jet valve assembly (6), a pump assembly (7), and a jet shell (8). The gas compression assembly (5) is rotatably disposed in the jet shell (8), the jet valve assembly (6) is symmetrically disposed in the gas compression assembly (5), and the pump assembly (7) is disposed on the jet shell (8). The gas compression assembly (5) includes a compression chamber (9), a lead screw (11), and a piston plate (12). The compression chamber (9) is rotatably disposed in the blow-off housing (8). The lead screw (11) is rotatably disposed in the compression chamber (9). The piston plate (12) and the lead screw (11) are threadedly connected. The piston plate (12) is axially slidably disposed in the compression chamber (9). The jet valve assembly (6) includes a rubber valve body (13) and an elastic skeleton (14). The rubber valve body (13) is fixed to the inner side of the outer ring of the compression chamber (9) and contacts the outer side of the inner ring of the compression chamber (9). The elastic skeleton (14) is arranged in an array on the inner side of the rubber valve body (13). The air pump assembly (7) includes an air pump body (15), a connector (16), and a return spring (17). The air pump body (15) is fixed to the blower housing (8). One end of the air pump body (15) is provided with a sliding sleeve (24). The air pump body (15) is provided with a central rotating shaft (25). The end of the central rotating shaft (25) is provided with a flange (26). The flange (26) is engaged and slidably disposed in the sliding sleeve (24). The return spring (17) is disposed between the bottom of the sliding sleeve (24) and the flange (26). The connector (16) is fixed to the other end of the central rotating shaft (25). The dual-path jet pipe (2) consists of a central valve body (29), a pulse pipe (30), and a feeding pipe (31). The central valve body (29) is located at the bottom of the grinding and pulverizing mechanism (4). The part of the central valve body (29) connected to the grinding and pulverizing mechanism (4) is provided with a one-way valve plate. The feeding pipe (31) is located between the central valve body (29) and the screen grading mechanism (3). The pulse pipe (30) is located between the jet shell (8) and the central valve body (29). The pulse pipe (30) is provided with a back pressure pipe (50). The end of the back pressure pipe (50) is connected to the chamber where the reset spring (17) is located. The compression chamber (9) is also provided with arc-shaped interfaces (20) at both ends, and the end of the pulse tube (30) is provided with an arc-shaped part that matches the arc-shaped interface (20). When the arc-shaped part fits with the arc-shaped interface (20), an airflow channel can be formed. The lead screw (11) is symmetrically provided with a cylindrical part (21) and a polygonal part (22) at both ends. The connector (16) is provided with a circular groove (27) with a diameter matching the cylindrical part (21) and a polygonal groove (28) matching the polygonal part (22). The blower housing (8) is provided with a directional blower port (18) connected to the air pump body (15) below. The compression chamber (9) extends axially in the blower housing (8) in the horizontal direction and rotates in the horizontal plane around the vertical line.

2. The pulverizing device for fishmeal processing according to claim 1, characterized in that: The inner and outer rings of the compression chamber (9) are connected by a cage. The gas compression assembly (5) also includes a bearing (10), which is located between the inner ring of the compression chamber (9) and the lead screw (11). A reversing shaft (19) is provided above the compression chamber (9). The compression chamber (9) is rotatably located in the spray housing (8) via the reversing shaft (19). The grinding and pulverizing mechanism (4) includes a grinding drive assembly (42), and the compression chamber (9) and the grinding drive assembly (42) are rotatably connected.

3. The pulverizing device for fishmeal processing according to claim 2, characterized in that: The piston plate (12) is provided with symmetrical sealing sleeves (23) on both sides.

4. The pulverizing device for fishmeal processing according to claim 3, characterized in that: The screen grading mechanism (3) includes an airflow assembly (32) and a double screen (33). The airflow assembly (32) includes a screening shell (34) and a screening fan (35). The screening shell (34) is mounted on the frame, and the screening fan (35) is located at the bottom of the screening shell (34). The double screen (33) is fixed in the screening shell (34).

5. A pulverizing device for fishmeal processing according to claim 4, characterized in that: The dual screening screen (33) includes a dome (36) with micropores and a bottom groove (37), as well as a closed first baffle (38) and a second baffle (39).

6. A pulverizing device for fishmeal processing according to claim 5, characterized in that: The grinding and pulverizing mechanism (4) further includes a pulverizing shell (40) and a double-disc grinding assembly (41). The pulverizing shell (40) is mounted on the frame. The top of the pulverizing shell (40) is provided with a feed hopper (43). The grinding drive assembly (42) is located in the pulverizing shell (40). The double-disc grinding assembly (41) is located on the grinding drive assembly (42).

7. A pulverizing device for fishmeal processing according to claim 6, characterized in that: The dual-disc grinding assembly (41) includes a fixed disk (44) and a rotating disk (45). The rotating disk (45) is rotatably positioned above the fixed disk (44). The rotating disk (45) is provided with a retaining edge (48), and the bottom of the feed hopper (43) is located in the retaining edge (48).

8. A pulverizing device for fishmeal processing according to claim 7, characterized in that: The grinding drive assembly (42) includes a grinding motor (46) and a closed chamber (47). The closed chamber (47) is fixed to the crushing shell (40) by a retainer. The grinding motor (46) is fixed to the closed chamber (47) by a retainer. The fixed plate (44) is fixed above the closed chamber (47). The rotating plate (45) is provided with a bracket (49). The rotating plate (45) is fixed to the output shaft of the grinding motor (46) by the bracket (49). The output shaft at the other end of the grinding motor (46) is rotatably located on the top of the reversing shaft (19).

Images