Raw material screening device for feed processing

Abstract

The utility model relates to the technical field of feed processing, and discloses a feed processing raw material screening device which comprises a screening box and a composite supporting machine frame installed at the bottom of the screening box, a main sealing cover is connected to an outer thread of an end opening of the screening box, and a feeding pipe and a second self-sealing component are arranged at the top of the screening box. And an output structure of the second self-sealing part can be used for closing and adjusting the top of the feeding pipe. The reverse air blowing assembly and the air blowing pump form an air pumping device, and after the air pumping device is combined with a receding filtering device formed by a filtering plate, a screening box, a feeding pipe and a second self-sealing component, a transition pipe and a secondary screening assembly for use, the air blowing pump can reversely blow the filtering plate through the reverse air blowing assembly; and raw material chippings and dust are conveyed to the secondary screening assembly through transition pipe air to be filtered and stored while the filtering efficiency of the filtering plate is improved, and the operation efficiency of the whole working procedure is optimized.

Description

Technical Field

[0001] The utility model relates to the technical field of feed processing, in particular to a raw material screening device for feed processing. Background Technique

[0002] Feed is the general term for the food of all animals raised. Narrowly speaking, generally, feed mainly refers to the food of animals raised in agriculture or animal husbandry, including more than a dozen varieties of feed raw materials such as soybeans, soybean meal, corn, fish meal, amino acids, miscellaneous meal, whey powder, grease, meat and bone meal, grains, feed additives, etc.

[0003] At present, during the feed processing process, raw material screening is one of the necessary processing procedures. In order to reduce the labor intensity of workers and improve the processing quality, researchers in related fields have disclosed some targeted filtering devices. For example, the application number is 202222106025.2, which proposes that "through the rotating material lifting plate and blowing fan blades, dust can be well blown into the dust collection bag for collection, avoiding the influence of dust in feed raw materials on the quality of later processed feed. Through the left and right reciprocating movement of the sieve plate, the feed raw materials can be screened quickly and efficiently, improving the screening efficiency." However, in reality, the operation method of vibration screening will cause relatively large noise and accelerate the wear of parts. Secondly, the powdery objects in feed are not only dust, but also some shredded feed raw materials, which should be screened and collected again to avoid waste of resources. Content of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the utility model provides a raw material screening device for feed processing, which solves the problems raised in the above background technique.

[0005] The utility model provides the following technical scheme: A raw material screening device for feed processing, including a screening box and a composite support frame installed at the bottom of the screening box. The port of the screening box is externally threaded with a main sealing cover. The top of the screening box is provided with a feed pipe and a second self-sealing component. The output structure of the second self-sealing component can close and adjust the top of the feed pipe.

[0006] A filter plate assembly, a guide pipe, a reverse air blowing assembly, a conical transition pipe, and a first self-sealing component are sleeved inside the screening box. One end of the guide pipe is located above one side of the filter plate assembly, and the other end of the guide pipe is externally threaded with an auxiliary sealing cover. The reverse air blowing assembly is located between the guide pipe and the conical transition pipe, and the top of the reverse air blowing assembly is provided with an output port facing the filter plate assembly. The output structure of the first self-sealing component can close and adjust the bottom space of the conical transition pipe.

[0007] A secondary screening assembly, a transition pipe, and an air pump are provided on one side of the composite support frame. The output end of the air pump can pass through the screening box and communicate with one side of the reverse air blowing assembly. A transition pipe is installed between the top of the secondary screening assembly and the top of the screening box.

[0008] Selectedly, the second self-sealing component is composed of a sealing plate and a brake stepper motor, the output end of the brake stepper motor is transmission connected to one side of the sealing plate, and a support seat is installed between the shell surface of the brake stepper motor and the top surface of the screening box, and the sealing plate as the output structure of the second self-sealing component can close the top port space of the feed pipe under the transmission of the brake stepper motor.

[0009] Preferably, the filter plate is in an inclined state as a whole, and the screening effect is improved by linking the gravity, and the filter plate is composed of a supporting frame and a screening filter nested inside the supporting frame, and the interior of the supporting frame is fixedly sleeved inside the screening box.

[0010] Preferably, the reverse air blowing assembly comprises four annular tubes, which are cocentrically arranged and equidistantly distributed on a horizontal plane, and an assembly tube for spatial communication is installed between two adjacent annular tubes, a support plate is installed between the surface of the annular tube located in the outermost circle and the inner wall of the screening box, one end of the guide tube passes through the side wall of the screening box and is connected with the annular tube sleeve located in the outermost circle, thereby improving the stability of the overall structure.

[0011] Preferably, the other end of the guide tube is connected to the output end of the air pump, the number of the output ports is not less than two and they are evenly distributed on the top structure of the four annular tubes to ensure the operating range, an auxiliary filter is nested on the inner side of the bottom of the output port to prevent raw materials from leaking in, and a support frame is installed between the shell surface of the air pump and one side of the composite support frame.

[0012] The first self-sealing component includes an electric push rod and a plug block. The outer shell of the electric push rod is provided with an auxiliary sleeve frame, and the auxiliary sleeve frame is fixedly sleeved on the inner side of the bottom of the screening box. The output end of the electric push rod can penetrate the top structure of the auxiliary sleeve frame and be connected to the middle part of the plug block by transmission. The plug block, as the output structure of the first self-sealing component, can close and adjust the bottom space of the conical transition pipe under the transmission of the electric push rod, so that the overall device can perform unified discharging operations after multiple cycles of screening.

[0013] Preferably, one end of the transition pipe is fixedly connected to the top structure of one side of the composite support frame, and the secondary screening assembly includes a recovery filter cartridge and a dust collecting cone tube. The inner side of the top of the dust collecting cone tube can be threadedly connected to the bottom surface of the recovery filter cartridge, and the inner wall of the recovery filter cartridge and the inner wall of the dust collecting cone tube are both nested with filter screens to make way for air flow.

[0014] The bottom inner side of the recovery filter cartridge is nested with a classification filter screen to perform secondary screening of dust and raw material debris. The port at the bottom of the dust collecting cone tube is externally threadedly connected with a dust cleaning sealing cover. The top of the recovery filter cartridge and one end of the transition tube are installed with screws to facilitate the subsequent disassembly and cleaning of the secondary screening assembly.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] 1. The reverse air blowing component and the air pump provided in the utility model form an air pumping device, which is used in combination with the screening body composed of the filter plate, the screening box, the feed pipe, and the second self-sealing component, and the yield filtering device composed of the transition pipe and the secondary screening component. The air pump can reversely blow the filter plate through the reverse air blowing component to improve the filtering efficiency of the filter plate, and at the same time, the raw material debris and dust are transported to the secondary screening component through the transition pipe for filtering and storage, thereby optimizing the operating efficiency of the entire process.

[0017] 2. The secondary screening component provided in the utility model has multiple filtering effects, and can perform secondary screening and centralized collection of raw material debris and dust, thus solving the problems existing in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a partial cross-sectional schematic diagram of the structure of the utility model;

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

[0020] Figure 3 It is a right side view schematic diagram of the structure of the utility model;

[0021] Figure 4 It is an enlarged schematic diagram of the secondary screening component of the utility model structure;

[0022] Figure 5 It is a partially enlarged schematic diagram of the annular tube structure of the utility model.

[0023] In the figure: 1. screening box; 2. composite support frame; 3. filter plate; 4. reverse air blowing assembly; 41. annular tube; 42. assembly tube; 43. guide tube; 5. feed pipe; 6. conical transition tube; 7. first self-sealing component; 71. electric push rod; 72. plug block; 8. air pump; 9. main sealing cover; 10. guide tube; 11. second self-sealing component; 111. sealing plate; 112. brake stepping motor; 12. secondary screening assembly; 121. recovery filter cartridge; 122. dust collecting cone tube; 13. transition tube. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figures 1-5 A raw material screening device for feed processing comprises a screening box 1, a composite support frame 2 installed at the bottom of the screening box 1, a main sealing cover 9 is externally threadedly connected to the port of the screening box 1, a feed pipe 5 and a second self-sealing component 11 are arranged at the top of the screening box 1, and the output structure of the second self-sealing component 11 can close and adjust the top of the feed pipe 5;

[0026] The second self-sealing component 11 is composed of a sealing plate 111 and a brake stepping motor 112. The output end of the brake stepping motor 112 is transmission-connected to one side of the sealing plate 111, and a support seat is installed between the shell surface of the brake stepping motor 112 and the top surface of the screening box 1. The sealing plate 111, as the output structure of the second self-sealing component 11, can close the top port space of the feed pipe 5 under the transmission of the brake stepping motor 112.

[0027] The interior of the screening box 1 is equipped with a filter plate 3, a material guide pipe 10, a reverse air blowing assembly 4, a conical transition pipe 6, and a first self-sealing component 7. The filter plate 3 is in an inclined state as a whole, and the gravity is linked to improve the screening effect. The filter plate 3 is composed of a supporting frame plate and a screening filter screen nested inside the supporting frame plate. The interior of the supporting frame plate is fixedly sleeved inside the screening box 1.

[0028] One end of the guide pipe 10 is located above one side of the filter plate 3, and the other end of the guide pipe 10 is externally threadedly connected to an auxiliary sealing cover, the reverse air blowing assembly 4 is located between the guide pipe 10 and the tapered transition pipe 6, and the top of the reverse air blowing assembly 4 is provided with an output port toward the filter plate 3, the reverse air blowing assembly 4 includes four annular tubes 41, the four annular tubes 41 are cocentrically arranged and equidistantly distributed on the horizontal plane, and an assembly tube 42 for space connection is installed between two adjacent annular tubes 41, and the surface of the annular tube 41 located in the outermost circle is A support plate is installed between the inner wall of the screening box 1, one end of the guide pipe 43 passes through the side wall of the screening box 1 and is set and connected with the annular pipe 41 located in the outermost circle to improve the stability of the overall structure, the other end of the guide pipe 43 is connected to the output end of the air pump 8, the number of output ports is not less than two and is evenly distributed on the top structure of the four annular pipes 41 to ensure the operating range, an auxiliary filter screen is nested inside the bottom of the output port to prevent raw materials from leaking in, and a support frame is installed between the shell surface of the air pump 8 and one side of the composite support frame 2;

[0029] The output structure of the first self-sealing component 7 can close and adjust the bottom space of the tapered transition pipe 6. The first self-sealing component 7 includes an electric push rod 71 and a plug block 72. The outer shell of the electric push rod 71 is provided with an auxiliary sleeve frame, and the auxiliary sleeve frame is fixedly sleeved on the inner side of the bottom of the screening box 1. The output end of the electric push rod 71 can penetrate the top structure of the auxiliary sleeve frame and be transmission-connected with the middle of the plug block 72. The plug block 72, as the output structure of the first self-sealing component 7, can close and adjust the bottom space of the tapered transition pipe 6 under the transmission of the electric push rod 71, so that the overall device can perform a unified discharging operation after multiple periodic screening.

[0030] A secondary screening component 12, a transition pipe 13, and an air pump 8 are arranged on one side of the composite support frame 2. The output end of the air pump 8 can penetrate the screening box 1 and communicate with one side of the reverse air blowing component 4. A transition pipe 13 is installed between the top of the secondary screening component 12 and the top of the screening box 1. One end of the transition pipe 13 is fixedly connected to the top structure of one side of the composite support frame 2. The secondary screening component 12 includes a recovery filter cartridge 121 and a dust collecting cone 122. The inner side of the top of the dust collecting cone 122 can be connected to the recovery filter cartridge 121. The bottom surface of the filter cartridge 121 is threadedly connected, and the inner wall of the recovery filter cartridge 121 and the inner wall of the dust collecting cone tube 122 are both nested with filter screens to make way for air flow. A classification filter screen is nested on the inner side of the bottom of the recovery filter cartridge 121 to perform secondary screening of dust and raw material debris. The port at the bottom of the dust collecting cone tube 122 is externally threadedly connected with a dust cleaning sealing cover. The top of the recovery filter cartridge 121 is installed with one end of the transition pipe 13 by screws, which is convenient for the subsequent disassembly and cleaning of the secondary screening component 12.

[0031] Working principle:

[0032] The raw materials to be screened are put into the top of the screening box 1 through the feed pipe 5, and then the filter plate 3 in the inclined state performs preliminary screening on the materials under the action of gravity, and the screened raw materials flow to the inner side of the bottom of the screening box 1 through the conical transition pipe 6;

[0033] Next, the sealing plate 111 is started, and the sealing plate 111 drives the brake stepping motor 112 to close the top port of the feed pipe 5. Similarly, the electric push rod 71 is started, and the output end of the electric push rod 71 drives the plug 72 to close the bottom space of the tapered transition pipe 6. After completion, the air pump 8 is periodically opened and closed, and the air pump 8 outputs gas to the four annular tubes 41 and the assembly tubes 42 between the four annular tubes 41 through the guide tube 43, and then the gas is blown from the bottom of the filter plate 3 to the top of the filter plate 3 through multiple output ports, and then the raw materials on the top of the filter plate 3 are reciprocatedly lifted by the air, and then fall, and cooperate with the inclined filter plate 3 to achieve a full screening effect;

[0034] During the process of periodically conveying air, the debris and dust of the raw materials will be centrally conveyed through the transition pipe 13 to the recycling filter cylinder 121 inside the secondary screening assembly 12. After being filtered by the recycling filter cylinder 121, the debris-shaped raw materials are left, and the dust enters the inside of the dust collection cone pipe 122 for storage. This process repeats. After the screening is completed, the electric push rod 71 is turned off, the reset plug 72 is reset, and the auxiliary sealing covers of the main sealing cover 9 and the material guiding pipe 10 are unscrewed, then the screened raw materials can be collected specifically.

[0035] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. At the same time, in the drawings of the present utility model, the filling patterns are only for distinguishing layers and are not subject to any other limitations.

[0036] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A raw material screening device for feed processing, comprising a screening box (1) and a composite support frame (2) installed at the bottom of the screening box (1). The port of the screening box (1) is externally threaded with a main sealing cover (9), and it is characterized in that: The top of the screening box (1) is provided with a feed pipe (5) and a second self-sealing component (11), and the output structure of the second self-sealing component (11) can adjust the sealing of the top of the feed pipe (5); The screening box (1) is internally provided with a filter plate (3), a material guide pipe (10), a reverse air blowing assembly (4), a tapered transition pipe (6), and a first self-sealing component (7); one end of the material guide pipe (10) is located above one side of the filter plate (3), and the other end of the material guide pipe (10) is externally threadedly connected to an auxiliary sealing cover; the reverse air blowing assembly (4) is located between the material guide pipe (10) and the tapered transition pipe (6), and the top of the reverse air blowing assembly (4) is provided with an output port toward the filter plate (3); the output structure of the first self-sealing component (7) is capable of sealing and adjusting the bottom space of the tapered transition pipe (6); A secondary screening component (12), a transition pipe (13), and an air pump (8) are arranged on one side of the composite support frame (2); an output end of the air pump (8) can pass through the screening box (1) and communicate with one side of the reverse air blowing component (4); and a transition pipe (13) is installed between the top of the secondary screening component (12) and the top of the screening box (1).

2. The raw material screening device for feed processing according to claim 1, wherein: The second self-sealing component (11) is composed of a sealing plate (111) and a brake stepping motor (112); the output end of the brake stepping motor (112) is transmission-connected to one side of the sealing plate (111); and a support seat is installed between the shell surface of the brake stepping motor (112) and the top surface of the screening box (1); the sealing plate (111) as the output structure of the second self-sealing component (11) can seal the top port space of the feed pipe (5) under the transmission of the brake stepping motor (112).

3. The raw material screening device for feed processing according to claim 1, wherein: The filter plate (3) is in an inclined state as a whole, and is composed of a support frame and a screening filter net nested inside the support frame. The interior of the support frame is fixedly sleeved inside the screening box (1).

4. The raw material screening device for feed processing according to claim 1, wherein: The reverse air blowing assembly (4) comprises four annular tubes (41), the four annular tubes (41) are arranged concentrically and are equidistantly arranged in a horizontal plane, and an assembly tube (42) for spatial communication is installed between two adjacent annular tubes (41), a support plate is installed between the surface of the annular tube (41) located in the outermost circle and the inner wall of the screening box (1), and one end of the guide tube (43) penetrates the side wall of the screening box (1) and is arranged in a sleeve and communicated with the annular tube (41) located in the outermost circle.

5. The raw material screening device for feed processing according to claim 4, wherein: The other end of the guide pipe (43) is connected to the output end of the air pump (8), the number of the output ports is not less than two and they are evenly distributed on the top structure of the four annular tubes (41), an auxiliary filter is embedded inside the bottom of the output port, and a support frame is installed between the shell surface of the air pump (8) and one side of the composite support frame (2).

6. The raw material screening device for feed processing according to claim 1, wherein: The first self-sealing component (7) comprises an electric push rod (71) and a plug block (72); an auxiliary sleeve frame is sleeved outside a shell of the electric push rod (71); the auxiliary sleeve frame is fixedly sleeved on the inner side of the bottom of the screening box (1); the output end of the electric push rod (71) can penetrate the top structure of the auxiliary sleeve frame and be transmission-connected to the middle of the plug block (72); and the plug block (72) as the output structure of the first self-sealing component (7) can close and adjust the bottom space of the conical transition pipe (6) under the transmission of the electric push rod (71).

7. A raw material screening device for feed processing according to claim 1, characterized in that: One end of the transition pipe (13) is fixedly sleeved with the top structure of one side of the composite support frame (2); the secondary screening assembly (12) comprises a recovery filter cartridge (121) and a dust collecting cone tube (122); the inner side of the top of the dust collecting cone tube (122) can be threadedly connected to the bottom surface of the recovery filter cartridge (121); and the inner wall of the recovery filter cartridge (121) and the inner wall of the dust collecting cone tube (122) are both nested with a filter screen.

8. The raw material screening device for feed processing according to claim 7, characterized in that: A classification filter screen is embedded inside the bottom of the recovery filter cartridge (121); a cleaning sealing cover is externally threadedly connected to the port at the bottom of the dust collecting cone tube (122); and the top of the recovery filter cartridge (121) is mounted to one end of the transition tube (13) via screws.

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