CN111530729A - Multilayer screening equipment for fertilizer production - Google Patents
Multilayer screening equipment for fertilizer production Download PDFInfo
- Publication number
- CN111530729A CN111530729A CN202010381027.5A CN202010381027A CN111530729A CN 111530729 A CN111530729 A CN 111530729A CN 202010381027 A CN202010381027 A CN 202010381027A CN 111530729 A CN111530729 A CN 111530729A
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- Prior art keywords
- screening
- fertilizer production
- pipe
- fixedly connected
- screening device
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- 238000012216 screening Methods 0.000 title claims abstract description 146
- 239000003337 fertilizer Substances 0.000 title claims abstract description 53
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 27
- 239000000126 substance Substances 0.000 claims abstract description 24
- 230000007246 mechanism Effects 0.000 claims abstract description 18
- 238000013016 damping Methods 0.000 claims abstract description 14
- 239000000463 material Substances 0.000 claims description 19
- 239000004744 fabric Substances 0.000 claims 1
- 238000003756 stirring Methods 0.000 abstract description 8
- 230000009471 action Effects 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 4
- 230000003116 impacting effect Effects 0.000 abstract 1
- 238000004904 shortening Methods 0.000 abstract 1
- 238000007599 discharging Methods 0.000 description 10
- 238000000034 method Methods 0.000 description 4
- 230000001174 ascending effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/28—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/42—Drive mechanisms, regulating or controlling devices, or balancing devices, specially adapted for screens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
- B07B1/4609—Constructional details of screens in general; Cleaning or heating of screens constructional details of screening surfaces or meshes
- B07B1/4663—Multi-layer screening surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B2201/00—Details applicable to machines for screening using sieves or gratings
- B07B2201/04—Multiple deck screening devices comprising one or more superimposed screens
Landscapes
- Fertilizing (AREA)
Abstract
The invention discloses multilayer screening equipment for fertilizer production, and belongs to the technical field of fertilizer production screening. According to the invention, the chemical fertilizer can be screened through the screening device, when the chemical fertilizer is screened, the chemical fertilizer in the screening groove in the screening device can perform two actions of vibration and stirring, compared with the original screening device which only relies on vibration for screening, the screening device is finer in screening, faster in screening speed, and capable of shortening the production period of the chemical fertilizer, and the collision device is also arranged on the screening device and capable of impacting with the screening unit, so that the vibration amplitude of the screening groove is enlarged, the screening effect of the screening device is improved, and the damping adjusting mechanism on the collision device can adjust the damping between the impact pipe and the positioning pipe, so that different impact requirements can be met.
Description
Technical Field
The invention relates to the technical field of fertilizer production and screening, in particular to multilayer screening equipment for fertilizer production.
Background
In the production process of fertilizers, the separation of the sizes of fertilizer particles is a very important step, generally, fertilizers with different sizes are separated by adopting a vibrating screen, and most of the currently used vibrating screens adopt a vibrating screening mode.
The existing vibrating screen only uses vibration to screen, and the screening effect is very poor only by means of vibration during screening, so that the screening time is very long, and the production period of the fertilizer is influenced.
Based on the technical scheme, the invention designs the multilayer screening equipment for producing the fertilizer so as to solve the problems.
Disclosure of Invention
The invention aims to provide multilayer screening equipment for fertilizer production, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a multi-layer screening device for fertilizer production comprises a rack, a lifting device, a screening device and a material receiving device, wherein the lifting device is assembled at the top of the rack, the material receiving device is assembled at the bottom of the rack, and the screening device is arranged in the middle of the rack;
screening plant include with fixed screw thread post in frame top, a plurality of screening unit and with the guide cylinder of frame sliding assembly, guide cylinder and screening unit fixed Assembly, the screening unit includes the connecting plate, connecting plate top surface one side is run through by the guide cylinder and rather than fixed connection, and the connecting plate side is connected with the screening groove, screening groove middle part fixedly connected with bearing plate, the bearing plate middle part runs through there is rather than fixed bearing, bearing inner circle fixedly connected with internal thread pipe, internal thread pipe and screw thread post threaded connection, and internal thread pipe side equipartition has the switch-plate.
As a further scheme of the invention, the screening device is also provided with a collision device, the collision device comprises a positioning pipe fixedly assembled with the threaded column, the positioning pipe is sleeved with an impact pipe, the side surface of the impact pipe is provided with a sliding opening, and a limiting column fixed with the positioning pipe is clamped in the sliding opening.
As a further scheme of the invention, the collision device is provided with a damping adjusting mechanism, the damping adjusting mechanism comprises a first threaded hole and a second threaded hole which are arranged at the top of the limiting column, an arc-shaped friction plate is arranged at one side of the first threaded hole, the second threaded hole is arranged on the arc-shaped friction plate, and the second threaded hole and the first threaded hole are in threaded connection with an adjusting bolt together.
As a further scheme of the invention, the rack comprises a base, a support rod is vertically fixed at the top of the base, the support rod is assembled with the guide cylinder in a sliding mode, a top plate is fixed at the top of the support rod, and the top plate is fixedly connected with the threaded column.
As a further scheme of the invention, the lifting device comprises a motor fixed on the top of the top plate, an output shaft of the motor is fixedly connected with a driving gear, the driving gear is meshed with a driven gear, the driving gear is fixedly connected with a rotating rod rotatably assembled with the top plate, two ends of the rotating rod are fixedly connected with short rocker arms, the other ends of the short rocker arms are connected with long rocker arms through hinged shafts, and the long rocker arms are fixedly connected with the screening device through hinged shafts.
As a further scheme of the invention, the screening tank is further provided with a discharging mechanism, the discharging mechanism comprises a fan-shaped screen frame hinged with the bearing plate, a screen is fixed on the fan-shaped screen frame, a first threaded through hole is formed in the side surface of the fan-shaped screen frame, a second threaded through hole is formed in the side surface of the screening tank, and the first threaded through hole and the second threaded through hole are in threaded connection with a connecting bolt together.
As a further scheme of the invention, the top of the bearing plate is provided with a material guide inclined plane, and both side surfaces of the bearing plate are provided with wedged cambered surfaces.
As a further scheme of the invention, the top of the hinged surface of the fan-shaped screen frame is provided with a material guiding cambered surface, and the material guiding cambered surface is tightly attached to the wedged cambered surface.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the chemical fertilizer can be screened by the screening device, and during screening, the chemical fertilizer in the screening groove in the screening device can perform two actions of vibration and stirring;
2. the invention also arranges a collision device on the screening device, the collision device can generate collision with the screening groove, the vibration amplitude of the screening groove is enlarged, the screening effect of the screening device is improved, and a damping adjusting mechanism on the collision device can adjust the damping between the collision pipe and the positioning pipe, so as to adapt to different collision requirements;
3. the screening groove is also provided with the discharging mechanism, and the discharging mechanism is convenient for discharging the chemical fertilizer retained in the screening groove.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of the overall structure of a multi-layer screening apparatus for fertilizer production according to the present invention;
FIG. 2 is a schematic view of a first structure of a screening unit in a multi-layered screening apparatus for fertilizer production according to the present invention;
FIG. 3 is a second schematic structural view of a screening unit in the multi-layered screening apparatus for fertilizer production according to the present invention;
FIG. 4 is a schematic view of a connection structure of a bearing plate and a fan-shaped screen frame in the multi-layer screening device for fertilizer production according to the present invention;
FIG. 5 is an enlarged view taken at A in FIG. 4;
FIG. 6 is a schematic view of an installation structure of a collision device in the multi-layer screening device for fertilizer production.
In the drawings, the components represented by the respective reference numerals are listed below:
the device comprises a guide cylinder 101, a connecting plate 102, a screening groove 103, a bearing plate 104, a bearing 105, an internal threaded pipe 106, a threaded column 107, a material shifting plate 108, a positioning pipe 109, an impact pipe 110, a sliding opening 111, a limiting column 112, a first threaded hole 113, an arc-shaped friction plate 114, a second threaded hole 115, an adjusting bolt 116, a base 201, a support rod 202, a top plate 203, a motor 301, a driving gear 302, a driven gear 303, a rotating rod 304, a short rocker arm 305, a long rocker arm 306, a fan-shaped screen frame 401, a screen 402, a first threaded through hole 403, a second threaded through hole 404, a connecting bolt 405, a material guiding arc surface 5 and a wedged arc surface 6.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-6, the present invention provides a technical solution: a multi-layer screening device for fertilizer production comprises a rack, a lifting device, a screening device and a material receiving device, wherein the lifting device is assembled at the top of the rack, the material receiving device is assembled at the bottom of the rack, and the screening device is arranged in the middle of the rack; when the multilayer screening equipment screens the chemical fertilizers, the lifting device lifts and descends the screening device, so that the screening device realizes the function of vibration screening in the lifting and descending action process, and the material receiving device collects the screened chemical fertilizers.
The screening device comprises a threaded column 107 fixed with the top of a rack, a plurality of screening units and a guide cylinder 101 slidably assembled with the rack, the guide cylinder 101 is fixedly assembled with the screening units, each screening unit comprises a connecting plate 102, one side of the top surface of each connecting plate 102 is penetrated by the guide cylinder 101 and fixedly connected with the same, the side surface of each connecting plate 102 is connected with a screening groove 103, the middle part of each screening groove 103 is fixedly connected with a bearing plate 104, a bearing 105 fixed with the same is penetrated through the middle part of each bearing plate 104, an inner ring of each bearing 105 is fixedly connected with an inner threaded pipe 106, each inner threaded pipe 106 is in threaded connection with the threaded column 107, the side surface of each inner threaded pipe 106 is uniformly provided with a material stirring plate 108, the screening device is in two states during working, when the lifting device lifts the screening device, the guide cylinder 101 moves upwards, the guide cylinder 101 can drive the screening, the internal thread pipe 106 that is fixed with bearing 105 on bearing plate 104 also upward movement, and the threaded connection of internal thread pipe 106 and screw thread post 107, rotation can take place during internal thread pipe 106 upward movement, internal thread pipe 106 rotates and can make switch-plate 108 stir the chemical fertilizer in screening groove 103, when lifting device made the screening plant whereabouts, can obtain switch-plate 108 with the principle of the same above and also stir the chemical fertilizer in screening groove 103, when falling to the minimum, screening groove 103 just can take place the vibration, carry out the vibration screening, so this screening plant carries out the chemical fertilizer screening time-sharing, the executable vibration of the interior chemical fertilizer of screening groove 103 and stir two actions, compare original screening plant that only relies on the vibration to carry out the screening, this screening equipment screening is more meticulous, and screening speed is faster, the production cycle of chemical fertilizer has been shortened.
Still be equipped with collision device on the screening plant, collision device includes the registration arm 109 with screw thread post 107 fixed assembly, registration arm 109 cover is equipped with striking pipe 110, striking pipe 110 side has seted up slide opening 111, the card is equipped with in the slide opening 111 and fixes spacing post 112 with registration arm 109, through set up collision device on the screening plant, collision device can make screening unit and its more violent collision take place, make this screening equipment vibration screening effect better, can be provided with the damping between striking pipe 110 and the registration arm 109, when collision device collides with descending screening unit, striking pipe 110 can be through the sliding action of slide opening 111 with spacing post 112 downwards, conveniently rise in-process screening unit and its collision, and in the same way, when collision device collided with ascending screening unit, striking pipe 110 can upwards move, conveniently descend in-process screening unit and its collision.
The collision device is provided with a damping adjusting mechanism, the damping adjusting mechanism comprises a first threaded hole 113 and a second threaded hole 115 which are arranged at the top of the limiting column 112, an arc-shaped friction plate 114 is arranged on one side of the first threaded hole 113, the second threaded hole 115 is arranged on the arc-shaped friction plate 114, an adjusting bolt 116 is in threaded connection with the second threaded hole 115 and the first threaded hole 113 together, the damping adjusting mechanism is arranged on the collision device and can adjust the damping size between the positioning tube 109 and the collision tube 110, the collision device can adapt to different collision requirements conveniently, and during adjustment, the pressing force of the arc-shaped friction plate 114 can be changed by loosening or tightening the adjusting bolt 116, so that the damping size between the positioning tube 109 and the collision tube 110 is changed.
The frame includes base 201, and the vertical bracing piece 202 that is fixed with in base 201 top, bracing piece 202 and guide cylinder 101 sliding assembly, and the bracing piece 202 top is fixed with roof 203, and roof 203 and screw thread post 107 fixed connection, and base 201, bracing piece 202 and roof 203 are used for installing lifting device, screening plant and receiving device.
The lifting device comprises a motor 301 fixed on the top of the top plate 203, an output shaft of the motor 301 is fixedly connected with a driving gear 302, the driving gear 302 is meshed with a driven gear 303, the driving gear 302 is fixedly connected with a rotating rod 304 which is rotatably assembled with the top plate 203, two ends of the rotating rod 304 are fixedly connected with short rocker arms 305, the other ends of the short rocker arms 305 are connected with long rocker arms 306 through hinge shafts, the long rocker arms 306 are fixedly connected with the screening device through hinge shafts, when the lifting device works, the motor 301 can drive the rotating rod 304 to rotate through the driving gear 302 and the driven gear 303, the rotating rod 304 can drive the short rocker arm 305 to rotate, when the short rocker arm 305 rotates to the highest point, the long rocker arm 306 drives the sieving unit to move upwards to the highest point, when the short rocker arm 305 rotates to the lowest point, the long rocker arm 306 drives the screening unit to move downwards to the lowest point, and the ascending and descending actions are realized.
The screening tank 103 is also provided with a discharging mechanism, the discharging mechanism comprises a fan-shaped screen frame 401 hinged with the bearing plate 104, a screen 402 is fixed on the fan-shaped screen frame 401, the side surface of the fan-shaped screen frame 401 is provided with a first thread through hole 403, the side surface of the screening tank 103 is provided with a second thread through hole 404, the first thread through hole 403 and the second thread through hole 404 are in threaded connection with a connecting bolt 405 together, the discharging mechanism is further arranged on the screening tank 103 and facilitates discharging of the fertilizer in the screening tank 103, during discharging, the connecting bolt 405 is screwed out from the first thread through hole 403 and the second thread through hole 404, at the moment, the fan-shaped screen frame 401 can rotate along the side edge of the bearing plate 104, so that the fertilizer left by screening can be discharged quickly, and the sizes of the screen 402 on different screening units are different.
The top of the bearing plate 104 is provided with a material guiding inclined plane 7, the two side surfaces of the bearing plate 104 are provided with wedged cambered surfaces 6, and the top of the bearing plate 104 is provided with the material guiding inclined plane 7, so that chemical fertilizer can be prevented from being retained at the top of the bearing plate 104.
Fan-shaped reel 401 articulated surface top is equipped with guide cambered surface 5, guide cambered surface 5 with carve and close cambered surface 6 and closely laminate, through set up guide cambered surface 5 at fan-shaped reel 401 articulated surface top, the chemical fertilizer is detained on fan-shaped reel 401 side when can avoiding unloading, design guide cambered surface 5 with carve close cambered surface 6 and closely laminate, prevent that the chemical fertilizer from falling into fan-shaped reel 401 and bearing plate 104 junction, influence the screening precision.
The working principle is as follows: when the screening device works, chemical fertilizers to be screened are poured into the screening unit at the highest position, the lifting device drives the screening device to move upwards and downwards in a reciprocating motion, the screening device vibrates when moving to the lowest point, meanwhile, the bottom of the screening unit in the screening device collides with the collision device to perform vibration screening on the chemical fertilizers in the screening unit, when the screening device moves to the lowest point, the top of the screening unit in the screening device collides with the collision device to generate vibration to perform vibration screening on the chemical fertilizers in the screening unit, in addition, during the reciprocating motion process of moving upwards and downwards of the screening device, the internal threaded pipe 106 can generate positive rotation and reverse rotation and can drive the stirring plate 108 on the internal threaded pipe to stir the chemical fertilizers, so that the chemical fertilizers can turn over in the screening groove 103, the chemical fertilizers in the screening groove 103 can simultaneously perform two actions of vibration and turning over during screening, compared with the original screening device which only depends on vibration for screening, the screening equipment has finer screening and faster screening speed, and shortens the production period of the fertilizer.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (8)
1. The utility model provides a chemical fertilizer production is with multilayer branch sieve equipment, includes frame, lifting device, screening plant and receiving device, its characterized in that: the lifting device is assembled at the top of the rack, the material receiving device is assembled at the bottom of the rack, and the screening device is arranged at the middle position of the rack;
the screening device comprises a threaded column (107) fixed to the top of the rack, a plurality of screening units and a guide cylinder (101) assembled with the rack in a sliding mode, the guide cylinder (101) is fixedly assembled with the screening units, each screening unit comprises a connecting plate (102), one side of the top surface of each connecting plate (102) is penetrated through the guide cylinder (101) and fixedly connected with the guide cylinder, the side surface of each connecting plate (102) is connected with a screening groove (103), the middle part of each screening groove (103) is fixedly connected with a bearing plate (104), the middle part of each bearing plate (104) is penetrated through a bearing (105) fixed with the bearing plate, an inner ring of the bearing (105) is fixedly connected with an inner threaded pipe (106), the inner threaded pipe (106) is in threaded connection with the threaded column (107), and the side surfaces of the inner threaded pipe (106.
2. The multi-layer screening device for fertilizer production according to claim 1, characterized in that: the screening device is further provided with a collision device, the collision device comprises a positioning pipe (109) fixedly assembled with the threaded column (107), the positioning pipe (109) is sleeved with an impact pipe (110), the side face of the impact pipe (110) is provided with a sliding opening (111), and a limiting column (112) fixed with the positioning pipe (109) is clamped in the sliding opening (111).
3. The multi-layer screening device for fertilizer production according to claim 2, wherein; be equipped with damping adjustment mechanism on the collision device, damping adjustment mechanism is including setting up first screw hole (113) and second screw hole (115) at spacing post (112) top, first screw hole (113) one side is equipped with arc friction disc (114), second screw hole (115) set up on arc friction disc (114), and second screw hole (115) and first screw hole (113) common threaded connection have adjusting bolt (116).
4. The multi-layer screening device for fertilizer production according to claim 1, characterized in that: the rack comprises a base (201), a supporting rod (202) is vertically fixed to the top of the base (201), the supporting rod (202) is assembled with the guide cylinder (101) in a sliding mode, a top plate (203) is fixed to the top of the supporting rod (202), and the top plate (203) is fixedly connected with the threaded column (107).
5. The multi-layer screening device for fertilizer production according to claim 4, characterized in that: the lifting device is including fixing motor (301) at top on roof (203), motor (301) output shaft fixedly connected with driving gear (302), driving gear (302) meshing has driven gear (303), driving gear (302) fixedly connected with rotates dwang (304) of assembly with roof (203), dwang (304) both ends equal fixedly connected with short rocking arm (305), the other end of short rocking arm (305) is connected with long rocking arm (306) through the articulated shaft, long rocking arm (306) are through articulated shaft and screening plant fixed connection.
6. The multi-layer screening device for fertilizer production according to claim 1, characterized in that: still be equipped with discharge mechanism on screening groove (103), discharge mechanism includes with bearing plate (104) articulated fan-shaped reel (401), be fixed with screen cloth (402) on fan-shaped reel (401), fan-shaped reel (401) side is equipped with first screw thread through hole (403), screening groove (103) side is equipped with second screw thread through hole (404), first screw thread through hole (403) and second screw thread through hole (404) common threaded connection have connecting bolt (405).
7. The multi-layer screening device for fertilizer production according to claim 1, characterized in that: the top of the bearing plate (104) is provided with a material guide inclined plane (7), and both side surfaces of the bearing plate (104) are provided with wedged cambered surfaces (6).
8. The multi-layer screening device for fertilizer production according to claim 6, characterized in that: the top of the hinged surface of the fan-shaped screen frame (401) is provided with a material guiding cambered surface (5), and the material guiding cambered surface (5) is tightly attached to the wedged cambered surface (6).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010381027.5A CN111530729B (en) | 2020-05-08 | 2020-05-08 | Multilayer screening equipment for fertilizer production |
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|---|---|---|---|
| CN202010381027.5A CN111530729B (en) | 2020-05-08 | 2020-05-08 | Multilayer screening equipment for fertilizer production |
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| CN111530729A true CN111530729A (en) | 2020-08-14 |
| CN111530729B CN111530729B (en) | 2021-07-16 |
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| CN108906605A (en) * | 2018-05-23 | 2018-11-30 | 福建省复新农业科技发展有限公司 | A kind of cereal multistage screening exclusion device |
| CN109332143A (en) * | 2018-10-13 | 2019-02-15 | 绩溪袁稻农业产业科技有限公司 | A kind of rice screening plant |
| CN209832301U (en) * | 2019-04-26 | 2019-12-24 | 青岛宏信塑胶造粒有限公司 | Screening device for medium-density polyethylene sheath material |
| CN110899090A (en) * | 2019-11-11 | 2020-03-24 | 长沙市天珍科技有限公司 | Make things convenient for quick exhaust seed sieving mechanism for farming of residue |
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Effective date of registration: 20210702 Address after: 161031 Chemical Industry Committee of angxi District, Qiqihar City, Heilongjiang Province Applicant after: Qiqihar Maoer Agriculture Co.,Ltd. Address before: 233500 No.54 daguozhuang, Lugou village, chucun Town, Mengcheng County, Bozhou City, Anhui Province Applicant before: Guo Taotao |