CN213376909U - High-efficient reducing mechanism is used in chemical fertilizer production - Google Patents

High-efficient reducing mechanism is used in chemical fertilizer production Download PDF

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Publication number
CN213376909U
CN213376909U CN202021886355.2U CN202021886355U CN213376909U CN 213376909 U CN213376909 U CN 213376909U CN 202021886355 U CN202021886355 U CN 202021886355U CN 213376909 U CN213376909 U CN 213376909U
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CN
China
Prior art keywords
disc
rod
bevel gear
tank body
fertilizer production
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Expired - Fee Related
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CN202021886355.2U
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Chinese (zh)
Inventor
钱如海
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YANGZHOU ZHANPENG FERTILIZER CO Ltd
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YANGZHOU ZHANPENG FERTILIZER CO Ltd
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Priority to CN202021886355.2U priority Critical patent/CN213376909U/en
Application granted granted Critical
Publication of CN213376909U publication Critical patent/CN213376909U/en
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Abstract

The utility model relates to a chemical fertilizer production technical field discloses a chemical fertilizer production is with high-efficient reducing mechanism, and it is including the reducing tank body and support column, the outer wall fixed connection of support column and the reducing tank body, the top and the bottom of the reducing tank body are uncovered setting, the top fixed mounting of the reducing tank body has the mounting bracket, and driving motor is installed at the top of mounting bracket, and the bottom of mounting bracket is rotated and is installed the cylinder pole of vertical setting, and driving motor's output shaft and cylinder pole transmission are connected, the bottom fixed mounting of cylinder pole has the disc, and the disc is connected with the inner wall rotation of the reducing tank body, fixed mounting has the conveyer pipe of vertical setting on the disc, the top fixed mounting of conveyer pipe has the feeder. The utility model discloses the realization is ground the chemical fertilizer and is smashed, exerts the grinding dynamics, improves crushing efficiency, realizes the high-efficient screening of chemical fertilizer, collects crushing and screens in an organic whole, improves chemical fertilizer production efficiency.

Description

High-efficient reducing mechanism is used in chemical fertilizer production
Technical Field
The utility model relates to a chemical fertilizer production technical field especially relates to a chemical fertilizer production is with high-efficient reducing mechanism.
Background
The macronutrients of nitrogen, phosphorus and potassium in soil usually cannot meet the growth requirement of crops, and the fertilizer containing nitrogen, phosphorus and potassium is required to be applied for supplement. Besides chlorine in the soil, the trace elements are not deficient, and trace element fertilizers are needed to be applied to other trace elements. Fertilizers are generally mostly inorganic compounds, and only urea [ CO (NH2)2] is an organic compound. Fertilizers containing only one kind of nutrient element with marked content are called unit fertilizers, such as nitrogenous fertilizer, phosphate fertilizer, potash fertilizer and the like. The fertilizer containing two or more of the three nutrients of nitrogen, phosphorus and potassium and the content of which can be indicated is called compound fertilizer or mixed fertilizer. The grade is the main index of the quality of the fertilizer. It refers to the content percentage of effective nutrient elements or oxides thereof in the fertilizer product.
The existing fertilizer production needs to be transported to a screening device for screening after being crushed, so that the operation is complex and the efficiency is low, and therefore the problem is solved by providing the efficient crushing device for fertilizer production.
SUMMERY OF THE UTILITY MODEL
The utility model provides a pair of high-efficient reducing mechanism is used in chemical fertilizer production has solved the problem in the background art.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a high-efficiency smashing device for fertilizer production comprises a smashing tank body and a supporting column, wherein the supporting column is fixedly connected with the outer wall of the smashing tank body, the top and the bottom of the smashing tank body are arranged in an open mode, a mounting frame is fixedly mounted at the top of the smashing tank body, a driving motor is mounted at the top of the mounting frame, a vertically arranged cylindrical rod is rotatably mounted at the bottom of the mounting frame, an output shaft of the driving motor is in transmission connection with the cylindrical rod, a disc is fixedly mounted at the bottom of the cylindrical rod and is rotatably connected with the inner wall of the smashing tank body, a vertically arranged conveying pipe is fixedly mounted on the disc, a feeding hopper is fixedly mounted at the top of the conveying pipe, a vertically arranged lifting rod is slidably mounted on the disc, a turntable is fixedly mounted at the bottom of the lifting rod, a plurality of uniformly distributed convex blocks are fixedly, the rotary disc is provided with a vertically arranged feeding hole, the bottom of the conveying pipe is positioned in the feeding hole, the conveying pipe is in sliding connection with the inner wall of the feeding hole, the top of the rotary disc is fixedly provided with a push rod motor, a push rod of the push rod motor is in transmission connection with a lifting rod, the crushing tank body is internally and slidably provided with a horizontally arranged sieve plate, two sides of the inner wall of the bottom of the crushing tank body are fixedly provided with a driving box, the top of the driving box is slidably provided with a vertically arranged vertical rod, the top of the vertical rod is fixedly connected with the sieve plate, the driving box is internally and slidably provided with a horizontally arranged reciprocating plate, the driving box is rotatably provided with a vertically arranged reciprocating lead screw, the reciprocating lead screw is in threaded connection with the reciprocating plate, the bottom of the vertical rod extends into the driving box and is fixedly connected with the reciprocating plate, the rotation axis of vertical setting is installed in the both sides rotation of smashing the jar body, and the top and the cylindric pole transmission of axis of rotation are connected, and the bottom and the drive shaft transmission of axis of rotation are connected.
Preferably, the top of the disc is provided with a groove, the push rod motor is fixedly installed in the groove, the cylindrical rod is slidably installed with a horizontally arranged transverse plate, the top of the lifting rod is fixedly connected with the transverse plate, the disc is provided with a vertically arranged cylindrical hole, the bottom of the lifting rod penetrates through the cylindrical hole, and the lifting rod is slidably connected with the inner wall of the cylindrical hole.
Preferably, the connecting rod of vertical setting is fixed mounting in the both sides bottom of smashing the jar body, and the bottom fixed mounting of connecting rod has the bottom plate that the level set up, the bottom of drive shaft and axis of rotation all is connected with the bottom plate rotation, and the bottom of drive shaft and axis of rotation is all fixed the cover and is equipped with the belt pulley, is equipped with the belt between two belt pulleys.
Preferably, the top of the crushing tank body is rotated and is installed the cross axle that two levels set up, and two cross axles are located the both sides of cylinder pole, fixed cover is equipped with drive bevel gear on the cylinder pole, and the one end fixed mounting that the cross axle is close to the cylinder pole has driven bevel gear, drive bevel gear and driven bevel gear meshing, and the one end fixed mounting that driven bevel gear was kept away from to the cross axle has first bevel gear, the top fixed mounting of axis of rotation has second bevel gear, first bevel gear and second bevel gear meshing.
Preferably, the cross sections of the disc and the crushing tank body are both circular structures, four steel balls which are uniformly distributed in an annular shape are arranged on the side wall of the disc in a rolling mode, an annular rail groove is formed in the inner wall of the crushing tank body, and the steel balls are connected with the inner wall of the annular rail groove in a rolling mode.
Preferably, the top of drive case is seted up the mounting hole of vertical setting, the inside intercommunication of mounting hole and drive case, the mounting hole is run through to the bottom of montant, the inner wall sliding connection of montant and mounting hole.
Preferably, a material receiving hopper is fixedly installed between the two driving boxes, and a material discharging pipe is fixedly installed at the bottom of the material receiving hopper.
Preferably, the mounting bracket comprises a bearing rod and a placing plate, the bearing rod is fixedly mounted at the top of the crushing tank body, the placing plate is fixedly mounted at the top of the placing plate, the driving motor is fixedly mounted at the top of the placing plate, and the cylindrical rod is rotatably mounted at the bottom of the placing plate.
The utility model has the advantages that:
make the carousel descend through the carousel pivoted in, the lug pushes down and the chemical fertilizer contact, and the rotation of cooperation carousel rotates the grinding to the chemical fertilizer and smashes, can adjust the height of carousel and lug, applys the grinding dynamics, improves crushing efficiency.
Realize the drive shaft through driving motor when driving the cylinder pole pivoted and rotate, realize montant and sieve at vertical direction up-and-down motion, realize the upper and lower shake of sieve, realize the high-efficient screening of chemical fertilizer, realize the screening when kibbling, collect and smash and screen in an organic whole, improve chemical fertilizer production efficiency.
The utility model discloses the realization is ground the chemical fertilizer and is smashed, exerts the grinding dynamics, improves crushing efficiency, realizes the high-efficient screening of chemical fertilizer, collects crushing and screens in an organic whole, improves chemical fertilizer production efficiency.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic cross-sectional view of the disc of the present invention.
Fig. 3 is an enlarged schematic view of a portion a in fig. 1.
Fig. 4 is a schematic sectional structural view of the driving box of the present invention.
In the figure: the device comprises a support column 1, a crushing tank body 2, a mounting frame 3, a cylindrical rod 4, a driving motor 5, a disc 6, a lifting rod 7, a rotary table 8, a bump 9, a conveying pipe 10, a feed hopper 11, a push rod motor 12, a transverse plate 13, a feed hole 14, a driving box 15, a vertical rod 16, a sieve plate 17, a reciprocating screw rod 18, a driving shaft 19, a rotating shaft 20, a transverse shaft 21, a receiving hopper 22 and a reciprocating plate 23.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Referring to fig. 1-4, a high-efficiency smashing device for fertilizer production, comprising a smashing tank body 2 and a support column 1, wherein the support column 1 is fixedly connected with the outer wall of the smashing tank body 2, the top and the bottom of the smashing tank body 2 are arranged in an open manner, a mounting frame 3 is fixedly mounted at the top of the smashing tank body 2, a driving motor 5 is mounted at the top of the mounting frame 3, a vertically arranged cylindrical rod 4 is rotatably mounted at the bottom of the mounting frame 3, an output shaft of the driving motor 5 is in transmission connection with the cylindrical rod 4, a disc 6 is fixedly mounted at the bottom of the cylindrical rod 4, the disc 6 is rotatably connected with the inner wall of the smashing tank body 2, a vertically arranged conveying pipe 10 is fixedly mounted on the disc 6, a feeding hopper 11 is fixedly mounted at the top of the conveying pipe 10, a vertically arranged lifting rod 7 is slidably mounted on the disc 6, a turntable 8 is fixedly, the rotary table 8 is positioned below the disc 6, a vertically arranged feeding hole 14 is formed in the rotary table 8, the bottom of the conveying pipe 10 is positioned in the feeding hole 14, the conveying pipe 10 is in sliding connection with the inner wall of the feeding hole 14, a push rod motor 12 is fixedly installed at the top of the disc 6, a push rod of the push rod motor 12 is in transmission connection with the lifting rod 7, a horizontally arranged sieve plate 17 is installed in the crushing tank body 2 in a sliding mode, driving boxes 15 are fixedly installed on two sides of the inner wall of the bottom of the crushing tank body 2, vertically arranged vertical rods 16 are installed at the tops of the driving boxes 15 in a sliding mode, the tops of the vertical rods 16 are fixedly connected with the sieve plate 17, horizontally arranged reciprocating plates 23 are installed in the driving boxes 15 in a sliding mode, vertically arranged reciprocating lead screws 18 are installed in the driving boxes 15 in a rotating mode, the reciprocating lead screws 18 are in threaded connection with the reciprocating plates 23, the bottoms of the vertical rods 16, the driving shaft 19 is in transmission connection with the reciprocating screw rod 18, the two sides of the crushing tank body 2 are rotatably provided with vertically arranged rotating shafts 20, the top of each rotating shaft 20 is in transmission connection with the cylindrical rod 4, and the bottom of each rotating shaft 20 is in transmission connection with the driving shaft 19.
As shown in fig. 2, a groove is formed in the top of the disc 6, the push rod motor 12 is fixedly installed in the groove, a horizontal plate 13 horizontally arranged is installed on the cylindrical rod 4 in a sliding manner, the top of the lifting rod 7 is fixedly connected with the horizontal plate 13, a vertically arranged cylindrical hole is formed in the disc 6, the bottom of the lifting rod 7 penetrates through the cylindrical hole, and the lifting rod 7 is connected with the inner wall of the cylindrical hole in a sliding manner. The lifting rod 7 is slidably mounted on the disc 6 through the cylindrical hole, and the transverse plate 13 is driven to descend through the rod motor 12 so that the lifting rod 7 descends, and the height position of the lifting rod 7 is adjusted.
As shown in fig. 1, the connecting rods of vertical setting are fixedly mounted at the bottoms of the two sides of the crushing tank body 2, the bottom of each connecting rod is fixedly mounted with a bottom plate horizontally arranged, the bottoms of the driving shaft 19 and the rotating shaft 20 are both rotatably connected with the bottom plates, belt pulleys are fixedly sleeved at the bottoms of the driving shaft 19 and the rotating shaft 20, and belts are arranged between the two belt pulleys. The driving shaft and the rotating shaft 20 are in transmission connection through the arrangement of the belt pulley and the belt, and linkage between the driving shaft 19 and the rotating shaft 20 is realized.
As shown in fig. 1, two horizontal transverse shafts 21 are rotatably mounted on the top of the pulverizing tank body 2, the two transverse shafts 21 are located on two sides of the cylindrical rod 4, a driving bevel gear is fixedly sleeved on the cylindrical rod 4, a driven bevel gear is fixedly mounted at one end of the transverse shaft 21 close to the cylindrical rod 4, the driving bevel gear is meshed with the driven bevel gear, a first bevel gear is fixedly mounted at one end of the transverse shaft 21 far away from the driven bevel gear, a second bevel gear is fixedly mounted on the top of the rotating shaft 20, and the first bevel gear is meshed with the second bevel gear. Make the initiative bevel gear drive driven bevel gear rotate and make the cross axle 21 rotate through the pivoted of cylindric lock 4 in the time, drive first bevel gear and rotate and make second bevel gear rotate for axis of rotation 20 rotates, realizes the transmission of cylindric lock 4 and axis of rotation 20 and is connected.
As shown in fig. 1 and 2, the cross sections of the disc 6 and the crushing tank 2 are both circular structures, four steel balls are arranged on the side wall of the disc 6 in a rolling manner and are uniformly distributed in an annular shape, an annular track groove is formed in the inner wall of the crushing tank 2, and the steel balls are connected with the inner wall of the annular track groove in a rolling manner. Support is provided for the crushing tank body 2 through the steel ball, and the annular track groove provides the track for the steel ball, stable in structure for the stable rotation of the crushing tank body 2 when rotating, frictional force is little, and it is nimble to rotate.
As shown in fig. 1 and 4, a vertically arranged mounting hole is formed in the top of the driving box 15, the mounting hole is communicated with the inside of the driving box 15, the bottom of the vertical rod 16 penetrates through the mounting hole, and the vertical rod 16 is slidably connected with the inner wall of the mounting hole. The mounting holes are used for mounting the vertical rod 16, so that the vertical rod 16 can stably perform lifting movement on the top of the driving box 15.
As shown in fig. 1, a receiving hopper 22 is fixedly installed between the two driving boxes 15, and a discharge pipe is fixedly installed at the bottom of the receiving hopper 22. The receiving hopper 22 is used for receiving the screened materials, and is convenient for collecting the screened materials.
As shown in fig. 1, the mounting frame 3 is composed of a bearing rod and a placing plate, the bearing rod is fixedly mounted on the top of the crushing tank body 2, the placing plate is fixedly mounted on the top of the placing plate, the driving motor 5 is fixedly mounted on the top of the placing plate, and the cylindrical rod 4 is rotatably mounted on the bottom of the placing plate. Provide the position through mounting bracket 3 and install for driving motor 5, rotate through the cylinder pole and install in the bottom of placing the board for driving motor 5 rotates local cylinder pole 4, is used for cylinder pole 4 pivoted power to support.
The working principle is as follows: put into the chemical fertilizer through feeder hopper 11, make the chemical fertilizer pass through feed port 14 along conveyer pipe 10 and fall on sieve 17, then drive cylinder 4 through driving motor 5 and rotate and make disc 6 rotate, it rotates to drive carousel 8, cooperation push rod motor 12 drives diaphragm 13 and descends and make lifter 7 descend, make carousel 8 descend, lug 9 pushes down and contacts with the chemical fertilizer, cooperation carousel 8's rotation, rotate the chemical fertilizer and grind crushing, can adjust the height of carousel 8 and lug 9, apply the grinding dynamics, improve crushing efficiency. Make drive bevel gear drive driven bevel gear rotate and make cross axle 21 rotate when driving cylindrical bar 4 pivoted through driving motor 5, it makes second bevel gear rotate to drive first bevel gear rotate, make axis of rotation 20 rotate, it makes drive shaft 19 rotate to drive the belt pulley rotation, realize reciprocal lead screw 18 rotates, drive reciprocal board 23 at vertical direction up-and-down motion, drive montant 16 and sieve 17 at vertical direction up-and-down motion, realize the up-and-down shake of sieve 17, realize the high-efficient screening of chemical fertilizer, realize the screening when kibbling, collect and smash and screen in an organic whole, improve chemical fertilizer production efficiency. The utility model discloses the realization is ground the chemical fertilizer and is smashed, exerts the grinding dynamics, improves crushing efficiency, realizes the high-efficient screening of chemical fertilizer, collects crushing and screens in an organic whole, improves chemical fertilizer production efficiency.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims (8)

1. The utility model provides a chemical fertilizer production is with high-efficient reducing mechanism, includes the crushing jar body (2) and support column (1), its characterized in that, the outer wall fixed connection of support column (1) and the crushing jar body (2), the top and the bottom of the crushing jar body (2) are uncovered setting, the top fixed mounting of the crushing jar body (2) has mounting bracket (3), and driving motor (5) are installed at the top of mounting bracket (3), and the bottom of mounting bracket (3) is rotated and is installed cylinder pole (4) of vertical setting, and the output shaft and the cylinder pole (4) transmission of driving motor (5) are connected, the bottom fixed mounting of cylinder pole (4) has disc (6), and disc (6) are connected with the inner wall rotation of the crushing jar body (2), fixed mounting has the conveyer pipe (10) of vertical setting on disc (6), the top fixed mounting of conveyer pipe (10) has feeder hopper (11), the utility model discloses a crushing machine, including disc (6), lifter (7) of vertical setting, the bottom fixed mounting of lifter (7) has carousel (8), and the bottom fixed mounting of carousel (8) has a plurality of evenly distributed's lug (9), carousel (8) are located the below of disc (6), set up vertically arranged feed port (14) on carousel (8), the bottom of conveyer pipe (10) is located feed port (14), the inner wall sliding connection of conveyer pipe (10) and feed port (14), the top fixed mounting of disc (6) has push rod motor (12), and the push rod and the lifter (7) transmission of push rod motor (12) are connected, slidable mounting has sieve (17) that the level set up in crushing jar body (2), the bottom inner wall both sides fixed mounting of crushing jar body (2) has drive box (15), and the top slidable mounting of drive box (15) has vertical pole (16) of vertical setting, the top and sieve (17) fixed connection of montant (16), slidable mounting has reciprocating plate (23) that the level set up in drive case (15), reciprocal lead screw (18) of vertical setting are installed to drive case (15) internal rotation, reciprocal lead screw (18) and reciprocating plate (23) threaded connection, the bottom of montant (16) extend to in drive case (15) and with reciprocating plate (23) fixed connection, drive shaft (19) are installed in the bottom rotation of drive case (15), and drive shaft (19) are connected with reciprocal lead screw (18) transmission, the axis of rotation (20) of vertical setting are installed in the both sides rotation of the crushing jar body (2), and the top and cylinder pole (4) transmission of axis of rotation (20) are connected, and the bottom and the drive shaft (19) transmission of axis of rotation (20) are connected.
2. The efficient smashing device for fertilizer production according to claim 1, wherein a groove is formed in the top of the disc (6), the push rod motor (12) is fixedly installed in the groove, the horizontal plate (13) horizontally arranged is installed on the cylindrical rod (4) in a sliding mode, the top of the lifting rod (7) is fixedly connected with the horizontal plate (13), a vertically arranged cylindrical hole is formed in the disc (6), the cylindrical hole is formed in the bottom of the lifting rod (7) in a penetrating mode, and the lifting rod (7) is connected with the inner wall of the cylindrical hole in a sliding mode.
3. The efficient smashing device for fertilizer production according to claim 1, wherein connecting rods vertically arranged are fixedly mounted at bottoms of two sides of the smashing tank body (2), a horizontally arranged bottom plate is fixedly mounted at bottom of each connecting rod, bottoms of the driving shaft (19) and the rotating shaft (20) are both rotatably connected with the bottom plate, belt pulleys are fixedly sleeved at bottoms of the driving shaft (19) and the rotating shaft (20), and belts are arranged between the two belt pulleys.
4. The efficient smashing device for fertilizer production according to claim 1, wherein the top of the smashing tank body (2) is rotatably provided with two horizontally arranged transverse shafts (21), the two transverse shafts (21) are located on two sides of the cylindrical rod (4), the cylindrical rod (4) is fixedly sleeved with a driving bevel gear, one end of the transverse shaft (21) close to the cylindrical rod (4) is fixedly provided with a driven bevel gear, the driving bevel gear is meshed with the driven bevel gear, one end of the transverse shaft (21) far away from the driven bevel gear is fixedly provided with a first bevel gear, the top of the rotating shaft (20) is fixedly provided with a second bevel gear, and the first bevel gear is meshed with the second bevel gear.
5. The efficient smashing device for fertilizer production according to claim 1, wherein the cross sections of the disc (6) and the smashing tank body (2) are both circular structures, four steel balls are arranged on the side wall of the disc (6) in a rolling mode and are uniformly distributed in an annular mode, an annular track groove is formed in the inner wall of the smashing tank body (2), and the steel balls are connected with the inner wall of the annular track groove in a rolling mode.
6. The efficient smashing device for fertilizer production according to claim 1, wherein a vertically arranged mounting hole is formed in the top of the driving box (15), the mounting hole is communicated with the inside of the driving box (15), the mounting hole penetrates through the bottom of the vertical rod (16), and the vertical rod (16) is slidably connected with the inner wall of the mounting hole.
7. The efficient smashing device for fertilizer production according to claim 1, wherein a receiving hopper (22) is fixedly installed between the two driving boxes (15), and a discharging pipe is fixedly installed at the bottom of the receiving hopper (22).
8. The efficient smashing device for fertilizer production according to claim 1, wherein the mounting frame (3) is composed of a bearing rod and a placing plate, the bearing rod is fixedly mounted at the top of the smashing tank body (2), the placing plate is fixedly mounted at the top of the placing plate, the driving motor (5) is fixedly mounted at the top of the placing plate, and the cylindrical rod (4) is rotatably mounted at the bottom of the placing plate.
CN202021886355.2U 2020-09-02 2020-09-02 High-efficient reducing mechanism is used in chemical fertilizer production Expired - Fee Related CN213376909U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202021886355.2U CN213376909U (en) 2020-09-02 2020-09-02 High-efficient reducing mechanism is used in chemical fertilizer production

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202021886355.2U CN213376909U (en) 2020-09-02 2020-09-02 High-efficient reducing mechanism is used in chemical fertilizer production

Publications (1)

Publication Number Publication Date
CN213376909U true CN213376909U (en) 2021-06-08

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Application Number Title Priority Date Filing Date
CN202021886355.2U Expired - Fee Related CN213376909U (en) 2020-09-02 2020-09-02 High-efficient reducing mechanism is used in chemical fertilizer production

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113492105A (en) * 2021-07-28 2021-10-12 信阳农林学院 Vibrating screen and screening method for screening camellia seeds
CN115364957A (en) * 2022-08-31 2022-11-22 史丹利化肥遂平有限公司 Raw materials conveyer for bio-chemical fertilizer

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113492105A (en) * 2021-07-28 2021-10-12 信阳农林学院 Vibrating screen and screening method for screening camellia seeds
CN115364957A (en) * 2022-08-31 2022-11-22 史丹利化肥遂平有限公司 Raw materials conveyer for bio-chemical fertilizer

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