Feed raw material screening device

Abstract

The utility model discloses a feed raw material screening device. The feed raw material screening device comprises a screening plate, a closed type material guiding assembly and a rotary material distributing assembly. The closed material guiding assembly comprises a closed screening machine shell, a feeding pipe is fixedly connected to the upper portion of the closed screening machine shell, a plurality of evenly-distributed spraying communication plates are fixedly connected to the inner wall of the closed screening machine shell, and a plurality of sets of evenly-distributed dust falling nozzles are fixedly assembled on the sides, close to the screening plate, of the spraying communication plates. The rotary material distributing assembly comprises a plurality of material distributing rollers, and the outer sides of the material distributing rollers are fixedly connected with a plurality of sets of evenly-distributed material distributing blades. According to the feedstuff screening device disclosed by the utility model, the feedstuff can be screened in a closed manner by arranging the closed material guiding assembly and the rotary material distributing assembly, and the situation that dust flies in the feedstuff screening process is reduced; and the feed raw materials which are too thick on the sieve plate are subjected to material distribution treatment through the rotary material distribution assembly, and the follow-up screening effect on the feed raw materials is improved.

Description

Technical Field

[0001] This utility model belongs to the field of feed raw material screening technology, and specifically relates to a feed raw material screening device. Background Technology

[0002] Feed ingredient screening devices are a type of device used to remove impurities from feed ingredients. Common feed ingredient screening devices mainly include: vibrating screens, cylindrical primary cleaning screens, and rotary vibrating screens. Most of them use exposed screening to screen impurities in feed ingredients.

[0003] As disclosed in Chinese Utility Model Patent CN218309253U, a feed ingredient screening device includes a support frame, a screening assembly, and a scraping assembly. The screening assembly includes a vibrating unit and a screen plate. The vibrating unit includes a support frame and a receiving plate. The end of the support frame furthest from the conveyor belt is inclined downwards at a predetermined angle and is vertically mounted on the support frame. The screen plate has screen holes on its surface and is mounted on the support frame. The receiving plate is mounted on the support frame and located below the support frame to collect impurities that fall through the screen plate. The scraping assembly is mounted on the receiving plate and includes a scraper. The scraper is positioned along the width of the receiving plate and moves along its length to scrape impurities from the receiving plate. The screen plate is arc-shaped, with both sides extending a predetermined distance beyond the sides of the support frame. The end of the receiving plate closest to the conveyor belt is inclined downwards. Vibration is used for screening to minimize feed ingredient breakage and waste. The screen plate and support frame are detachably connected for easy replacement.

[0004] As can be seen from the description and accompanying drawings, the feed raw material screening device disclosed in this application also performs exposed screening of feed raw materials, and the raw materials to be screened are transported by a conveyor belt. During the screening process, the thickness of the feed raw materials on the screen plate cannot be adjusted, which causes the feed raw material screening device to have problems such as large screening dust, uneven screening thickness, and poor screening effect in actual application.

[0005] Therefore, in order to address the above-mentioned technical problems, it is necessary to provide a feed raw material screening device.

[0006] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0007] The purpose of this invention is to provide a feed raw material screening device that can reduce dust generated during screening and improve screening efficiency.

[0008] To achieve the above objectives, a specific embodiment of this utility model provides a feed raw material screening device, including: a screen plate, a closed material guiding assembly, and a rotating material distributing assembly.

[0009] The enclosed material guiding assembly is assembled on the outside of the screen plate. The enclosed material guiding assembly includes an enclosed screening machine housing, which is sleeved on the outside of the screen plate. A feeding pipe is fixedly connected to the top of the enclosed screening machine housing, and the feeding pipe is correspondingly arranged with the screen plate. Multiple evenly distributed spray guide plates are fixedly connected to the inner wall of the enclosed screening machine housing. The multiple spray guide plates are all arranged above the screen plate, and multiple sets of evenly distributed dust suppression nozzles are fixedly installed on the side of the multiple spray guide plates close to the screen plate.

[0010] The rotating material distribution assembly is mounted above the screen plate. The rotating material distribution assembly includes multiple material distribution rollers, all of which are rotatably connected to the enclosed screening machine casing. Multiple sets of evenly distributed material distribution blades are fixedly connected to the outer side of each of the multiple material distribution rollers, and the material distribution blades on the outer side of the multiple material distribution rollers are staggered.

[0011] In one or more embodiments of this utility model, multiple support columns are fixedly assembled inside the enclosed screening machine casing, and the multiple support columns are evenly distributed below the screen plate. The multiple support columns support and limit the movement of the screen plate. Vibration springs are fixedly connected between the multiple support columns and the screen plate. The vibration springs connect and limit the movement of the support columns and the screen plate, and at the same time, the contraction and return of the vibration springs limit the vibration of the screen plate.

[0012] In one or more embodiments of this utility model, a pair of cams are arranged below the screen plate. The rotation of the pair of cams controls the reciprocating upward movement of the screen plate, thereby facilitating vibration control of the screen plate. A linkage shaft is fixedly connected between each pair of cams, and the linkage shaft passes through the enclosed screening machine housing, and is rotatably connected to the enclosed screening machine housing. The linkage shaft serves to assemble, fix, and drive the rotation of the cams.

[0013] In one or more embodiments of this utility model, a drive motor is fixedly mounted on one side of the enclosed screening machine housing, and the output shaft of the drive motor is connected to the linkage shaft for transmission. The drive motor provides power, and by controlling the operation of the drive motor, the linkage shaft is rotated, thereby facilitating the rotational control of the cam.

[0014] In one or more embodiments of this utility model, a discharge pipe is fixedly connected inside the sieve plate, and the discharge pipe is arranged on the side of the sieve plate opposite to the feeding pipe. The feed raw materials screened above the sieve plate are discharged through the discharge pipe.

[0015] In one or more embodiments of this utility model, an impurity guide plate is provided below the sieve plate, and the impurity guide plate is connected to multiple support columns. The impurity guide plate limits and guides the impurities screened out by the sieve plate. A discharge pipe is fixedly connected to the side of the impurity guide plate close to the discharge pipe, and the discharge pipe penetrates the enclosed screening machine housing. The discharge pipe removes the impurities guided by the impurity guide plate, improving the convenience of subsequent impurity cleaning.

[0016] In one or more embodiments of this utility model, a conveying liquid pipe is fixedly connected to the top of the enclosed screening machine casing, and the conveying liquid pipe is in communication with multiple spray guide plates. The conveying liquid pipe serves to connect the liquid filling pipe and the multiple spray guide plates, facilitating the delivery of dust-suppressing liquid into the multiple spray guide plates. A liquid filling pipe is fixedly connected to the side of the conveying liquid pipe opposite to the enclosed screening machine casing. By connecting the conveying liquid pipe to the liquid filling pipe, the dust-suppressing liquid can be delivered to the multiple spray guide plates along the liquid filling pipe and the conveying liquid pipe.

[0017] In one or more embodiments of this utility model, multiple distributing rollers cooperate with the screen plate to form a guiding gap, which gradually decreases along the feeding pipe to the discharge pipe. This facilitates the step-by-step adjustment of the thickness of the feed raw materials being screened and conveyed on the screen plate through the cooperation of multiple distributing rollers and distributing blades, reducing the adverse effects of excessively thick feed raw materials on the screening effect.

[0018] In one or more embodiments of this utility model, multiple distributing rollers are rotatably connected to the enclosed screening machine housing, and a drive gear is fixedly connected to one end of each distributing roller located outside the enclosed screening machine housing. The distributing rollers are rotated by driving the drive gear to rotate.

[0019] In one or more embodiments of this invention, a synchronous toothed belt is fitted around the outer side of the plurality of drive gears, and the synchronous toothed belt meshes with the plurality of drive gears. The synchronous toothed belt synchronously drives the plurality of drive gears.

[0020] Compared with the prior art, the feed raw material screening device disclosed in this utility model can screen feed raw materials in a closed manner by setting up a closed material guiding component and a rotating material distributing component, thereby reducing the occurrence of dust flying during the screening process.

[0021] The rotating feed distribution component separates excessively thick feed materials from the sieve plate, improving the efficiency of subsequent feed material screening. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a partial structural schematic diagram of a feed raw material screening device according to one embodiment of the present invention;

[0024] Figure 2 for Figure 1 Schematic diagram of the structure at point A in the middle;

[0025] Figure 3 This is a front sectional view of a feed raw material screening device according to an embodiment of the present invention;

[0026] Figure 4 for Figure 3 Schematic diagram of the structure at point B;

[0027] Figure 5 for Figure 3 Schematic diagram of the structure at point C;

[0028] Figure 6 This is a perspective view of a feed raw material screening device according to an embodiment of the present invention.

[0029] Explanation of key figure labels:

[0030] 1-Screen plate, 101-Support column, 102-Vibration spring, 103-Cam, 104-Linkage shaft, 105-Drive motor, 2-Enclosed material guiding assembly, 201-Enclosed screening machine casing, 202-Feeding pipe, 203-Spray guide plate, 204-Dust suppression nozzle, 205-Discharge pipe, 206-Impurity guide plate, 207-Impurity discharge pipe, 208-Liquid conveying pipe, 209-Liquid adding pipe, 3-Rotating material distribution assembly, 301-Distribution roller, 302-Distribution blade, 303-Drive gear, 304-Synchronous toothed belt. Detailed Implementation

[0031] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0032] like Figures 1 to 6 As shown, a feed raw material screening device in one embodiment of the present invention includes: a screen plate 1, a closed material guiding component 2, and a rotating material distributing component 3.

[0033] like Figures 1 to 3 As shown, multiple support columns 101 are fixedly installed inside the enclosed screening machine casing 201, and the multiple support columns 101 are evenly distributed below the screen plate 1. The multiple support columns 101 support and limit the screen plate 1.

[0034] like Figures 1 to 3 As shown, multiple support columns 101 are fixedly connected to the screen plate 1 with vibration springs 102. The vibration springs 102 serve to limit the connection between the support columns 101 and the screen plate 1. At the same time, the vibration springs 102 can limit the vibration of the screen plate 1 through contraction and reset.

[0035] like Figures 1 to 3 As shown, a pair of cams 103 are arranged below the screen plate 1. The screen plate 1 is reciprocated upward by rotating the pair of cams 103, which facilitates the vibration control of the screen plate 1.

[0036] like Figures 1 to 3 As shown, a linkage shaft 104 is fixedly connected between each pair of cams 103. The linkage shaft 104 passes through the enclosed screening machine housing 201 and is rotatably connected to the enclosed screening machine housing 201. The linkage shaft 104 serves to assemble, fix, and drive the rotation of the cams 103.

[0037] like Figures 1 to 3 As shown, a drive motor 105 is fixedly mounted on one side of the enclosed screening machine housing 201, and the output shaft of the drive motor 105 is connected to the linkage shaft 104. The drive motor 105 provides power, and by controlling the operation of the drive motor 105, the linkage shaft 104 is rotated, thereby facilitating the rotation control of the cam 103.

[0038] like Figure 3 As shown, the enclosed material guiding assembly 2 is assembled on the outside of the screen plate 1. The enclosed material guiding assembly 2 includes an enclosed screening housing 201, which is sleeved on the outside of the screen plate 1. The enclosed screening housing 201 provides enclosed protection for the screen plate 1, reducing dust emissions during the screening process.

[0039] like Figure 1 As shown, a feeding pipe 202 is fixedly connected to the top of the enclosed screening machine housing 201, and the feeding pipe 202 is correspondingly set with the screen plate 1. The feed raw materials to be screened are added into the enclosed screening machine housing 201 through the feeding pipe 202 for screening.

[0040] like Figures 3 to 5 As shown, multiple evenly distributed spray guide plates 203 are fixedly connected to the inner wall of the enclosed screening machine casing 201, and the multiple spray guide plates 203 are evenly arranged above the screen plate 1. The spray guide plates 203 serve to limit the assembly and guide the liquid of the multiple sets of dust-suppressing nozzles 204. Multiple sets of evenly distributed dust-suppressing nozzles 204 are fixedly mounted on the side of the multiple spray guide plates 203 close to the screen plate 1. The dust-suppressing liquid is sprayed from the multiple sets of dust-suppressing nozzles 204 to perform dust suppression treatment on the enclosed screening machine casing 201.

[0041] Specifically, the spray size and liquid spray volume of the multiple dust suppression nozzles 204 can be adjusted according to the changes in the type of feed raw materials.

[0042] like Figures 3 to 4 As shown, a discharge pipe 205 is fixedly connected inside the sieve plate 1, and the discharge pipe 205 is arranged on the side of the sieve plate 1 away from the feeding pipe 202. The feed raw materials screened above the sieve plate 1 are discharged through the discharge pipe 205.

[0043] like Figures 3 to 4 As shown, an impurity guide plate 206 is arranged below the sieve plate 1, and the impurity guide plate 206 is connected to multiple support columns 101. The impurity guide plate 206 limits and guides the impurities screened out by the sieve plate 1. A waste discharge pipe 207 is fixedly connected to the side of the impurity guide plate 206 close to the discharge pipe 205, and the waste discharge pipe 207 is set through the enclosed screening machine shell 201. The impurities guided on the impurity guide plate 206 are discharged through the waste discharge pipe 207, which improves the convenience of subsequent cleaning of impurities.

[0044] like Figures 1 to 5 As shown, a liquid conveying pipe 208 is fixedly connected to the top of the enclosed screening machine casing 201, and the liquid conveying pipe 208 is connected to multiple spray guide plates 203. The liquid conveying pipe 208 serves to connect the liquid filling pipe 209 to the multiple spray guide plates 203, facilitating the delivery of dust-suppressing liquid into the multiple spray guide plates 203. The side of the liquid conveying pipe 208 facing away from the enclosed screening machine casing 201 is fixedly connected to the liquid filling pipe 209. Through the liquid conveying pipe connected to the external liquid filling pipe 209, the dust-suppressing liquid can be delivered along the liquid filling pipe 209 and the liquid conveying pipe 208 into the multiple spray guide plates 203.

[0045] Preferably, water can be used as the dust-suppressing liquid.

[0046] like Figures 1 to 5 As shown, the rotating material distribution assembly 3 is mounted above the screen plate 1. The rotating material distribution assembly 3 includes multiple material distribution rollers 301, which are rotatably connected to the enclosed screening machine housing 201. The material distribution rollers 301 serve to assemble, fix, and rotate the multiple material distribution blades 302.

[0047] The multiple feed rollers 301 and the screen plate 1 form a guide gap, which decreases gradually from the feed pipe 202 to the discharge pipe 205. This allows for step-by-step adjustment of the thickness of the feed material being screened and conveyed on the screen plate 1 through the cooperation of the multiple feed rollers 301 and the feed blades 302, reducing the adverse effects of excessively thick feed material on the screening effect.

[0048] like Figures 1 to 5 As shown, multiple distribution rollers 301 are fixedly connected to the outer sides of multiple distribution blades 302 that are evenly distributed. The distribution blades 302 on the outer sides of the multiple distribution rollers 301 are staggered. By rotating with the distribution rollers 301, the feed raw materials conveyed on the screen plate 1 can be stirred and distributed.

[0049] like Figure 6 As shown, multiple distributing rollers 301 are rotatably connected to the enclosed screening machine housing 201, and a drive gear 303 is fixedly connected to one end of each distributing roller 301 located outside the enclosed screening machine housing 201. The distributing rollers 301 are rotated by driving the drive gear 303 to rotate.

[0050] like Figure 6 As shown, a synchronous toothed belt 304 is fitted around the outer side of multiple drive gears 303, and the synchronous toothed belt 304 meshes with the multiple drive gears 303. The synchronous toothed belt 304 synchronously drives the multiple drive gears 303.

[0051] In addition, in practical applications, an electric motor can be installed on the outside of the enclosed screening machine housing 201. The output shaft of the electric motor is connected to the single distributing roller 301 for rotational drive of the distributing roller 301.

[0052] In practical use, the drive motor 105 drives the linkage shaft 104 to rotate, and the screen plate 1 rises and falls under the reciprocating action of a pair of cams 103, and vibrates as it falls under the action of multiple vibrating springs 102. Subsequently, the feed raw materials to be screened can be conveyed into the closed screening machine casing 201 along the feeding pipe 202, and the feed raw materials are vibrated and screened by the vibrating screen plate 1.

[0053] Impurities separated by screening can be discharged under the guidance of the impurity guide plate 206 and the discharge pipe 207, and the screened material can be discharged along the discharge pipe 205 under the action of the screen plate 1. During the screening process, multiple distribution rollers 301 can be synchronously rotated under the action of the drive gear 303 and the synchronous toothed belt 304 by driving a single distribution roller 301 to rotate. The feed raw materials conveyed on the screen plate 1 are divided by the rotation of multiple distribution rollers 301 and distribution blades 302, which reduces the situation where the feed raw materials are screened to a thick thickness.

[0054] In addition, the dust generated during the screening process can be limited by the enclosed screening machine casing 201, and the dust can be reduced by spraying dust-reducing liquid through multiple sets of dust-reducing nozzles 204, which improves the screening effect of the screen plate 1 and reduces the occurrence of dust flying during the screening process.

[0055] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0056] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A feedstock screening device, characterized in that, The utility model relates to a closed screening machine, which comprises a screening plate, a closed material guiding assembly arranged outside the screening plate, a rotary material distributing assembly arranged above the screening plate, and a plurality of supporting columns arranged below the screening plate. The closed material guiding assembly comprises a closed screening machine shell sleeved outside the screening plate, a feeding pipe fixedly connected to the top of the closed screening machine shell, a plurality of evenly distributed spray guiding plates fixedly connected to the inner wall of the closed screening machine shell, and a plurality of evenly distributed dust removal nozzles fixedly arranged on the side of each spray guiding plate close to the screening plate. The rotary material distributing assembly comprises a plurality of material distributing rollers rotatably connected to the closed screening machine shell, and a plurality of evenly distributed material distributing blades fixedly connected to the outer side of each material distributing roller. The closed screening machine shell is fixedly connected with a drive motor, and the output shaft of the drive motor is in transmission connection with the linkage shaft.

2. A feedstock screening device according to claim 1, characterised in that, The screening plate is fixedly connected with a discharge pipe arranged on the side away from the feeding pipe.

3. A feedstock screening device according to claim 1, wherein, The bottom of the screening plate is provided with an impurity flow guide plate connected with the plurality of supporting columns, and the side of the impurity flow guide plate close to the discharge pipe is fixedly connected with a foreign matter discharge pipe penetrating through the closed screening machine shell.

4. A feedstock screening apparatus according to claim 3, wherein, The top of the closed screening machine shell is fixedly connected with a liquid conveying pipe in communication with the plurality of spray guiding plates, and the side of the liquid conveying pipe away from the closed screening machine shell is fixedly connected with a liquid feeding pipe.

5. A feedstock screening device according to claim 2, wherein, The material guiding gaps are gradually reduced from the feeding pipe to the discharge pipe.

6. A feedstock screening apparatus according to claim 5, wherein, Each material distributing roller is rotatably connected with the closed screening machine shell, and the end of each material distributing roller outside the closed screening machine shell is fixedly connected with a drive gear.

7. A feedstock screening device according to claim 1, wherein, The outer side of each drive gear is sleeved with a synchronous gear belt in engagement with the plurality of drive gears.

8. A feedstock screening apparatus according to claim 5, wherein, ​ 9. A feedstock screening device according to claim 1, wherein, ​ 10. A feedstock screening apparatus according to claim 9, wherein, ​

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