Coarse screen lifting device

Abstract

The utility model discloses a coarse screen lifting device which comprises a drum screen body, a rolling assembly used for rolling coarse grains and caked materials is installed at the discharging end of the drum screen body, a discharging hopper is installed at the discharging end of the rolling assembly, and a first spiral conveyor is installed on the discharging hopper. Large particles and caked fertilizer filtered out by the drum screen body can be received through the arranged receiving hopper, the large particles and the caked fertilizer enter the grinding and rubbing assembly, the second grinding and rubbing screen is driven by the driving assembly to move, the large particles and the caked fertilizer entering the space between the first grinding and rubbing screen and the second grinding and rubbing screen are ground and rubbed, and the fertilizer is ground and rubbed. And the second grinding and rubbing screen repeatedly grinds and rubs, so that large particles become small, caked particles are rubbed and scattered, the fertilizer meeting the particle size enters the material receiving plate, is conveyed into the first bolt conveyor through the discharging hopper, is conveyed to the guide hopper through the second screw conveyor, and then enters the drum screen body for secondary screening, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of coarse screen lifting, and specifically relates to a coarse screen lifting device. Background Art

[0002] When the coarse-grained drum screen screens qualified fertilizers, larger particles and agglomerated fertilizer particles will be discharged along the inclination of the drum screen. The larger particles and agglomerated fertilizers need to be processed before screening. However, in the prior art, the larger particles and agglomerated fertilizers need to be transported to other equipment for crushing or breaking up and then screened again. There is also a conveying device in the prior art for re-screening larger particles and agglomerated fertilizers, so that it can be repeatedly screened to screen out qualified fertilizer particles. However, when re-screening, the larger particles and agglomerated fertilizers are not processed. Repeated screening will also result in larger particles and agglomerated fertilizers that cannot be screened out. For this reason, a coarse screen lifting device for crushing larger particles and agglomerated fertilizers is proposed. Utility Model Content

[0003] The purpose of the utility model is to provide a coarse screen lifting device to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned object, the present invention provides the following technical solution: a coarse screen lifting device, comprising a drum screen body, a crushing assembly for crushing coarse particles and agglomerated materials installed at the discharge end of the drum screen body, a discharge hopper installed at the discharge end of the crushing assembly, a first screw conveyor installed at the discharge hopper, a second screw conveyor installed at the outer side wall of the first screw conveyor, a guide hopper installed at the outer side wall of the second screw conveyor, and a discharge port of the guide hopper extending into the drum screen body;

[0005] The rolling assembly includes a first rolling screen and a second rolling screen. The outer wall of the first rolling screen is installed with a frame, and the second rolling screen is slidably set on the frame. The bottom of the first rolling screen is installed with a material receiving block, and the second rolling screen is installed with a driving assembly for driving its reciprocating motion.

[0006] Preferably, a material receiving hopper is installed at the material receiving end of the first grinding and rubbing screen, and a baffle that fits the inside of the material receiving hopper is installed on the second grinding and rubbing screen, and the material receiving hopper is detachably connected to the drum screen body.

[0007] Preferably, a plurality of limit plates are installed at the inner end of the receiving hopper, and the limit plates are located on the path of the baffle and are used to squeeze the coarse particles and agglomerated materials.

[0008] Preferably, the discharge hopper is installed between the end of the first grinding screen and the first screw conveyor, the drive assembly is installed at the upper end of the discharge hopper, and the protruding end of the drive assembly is connected to the second grinding screen through a connecting rod.

[0009] Compared with the prior art, the beneficial effects of the present invention are: a coarse screen lifting device, which can receive the larger particles and agglomerated fertilizers filtered out by the drum screen body through the provided receiving hopper, and make them enter the grinding and rubbing assembly, and drive the second grinding and rubbing screen to move, so that the larger particles and agglomerated fertilizers entering between the first grinding and rubbing screens are ground and rubbed, and the second grinding and rubbing screen repeatedly grinds and rubs the larger particles to make them smaller and the agglomerated particles to be broken up, and the fertilizer that meets the particle size enters the receiving plate, is sent to the first bolt conveyor through the discharge hopper, and is then sent to the guide hopper through the second screw conveyor, and then enters the drum screen body for secondary screening, thereby increasing work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0011] Figure 2 This is a schematic structural diagram of the grinding and rubbing component of the present utility model;

[0012] Figure 3 This is a schematic diagram of the separation structure of the first grinding and rubbing screen and the second grinding and rubbing screen of the utility model;

[0013] Figure 4 This is a cross-sectional view of the first grinding and rubbing screen and its connection structure of the utility model.

[0014] In the figure: 1- drum screen body, 2- discharge hopper, 3- first screw conveyor, 4- second screw conveyor, 5- guide hopper, 6- first grinding and rubbing screen, 7- second grinding and rubbing screen, 8- frame, 9- receiving plate, 10- receiving hopper, 11- baffle, 12- limit plate, 13- drive assembly. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0016] See also Figure 1-4The utility model provides a technical solution: a coarse screen lifting device, comprising a drum screen body 1, a grinding and rubbing component for grinding and rubbing coarse particles and agglomerated materials is installed at the discharge end of the drum screen body 1, a discharge hopper 2 is installed at the discharge end of the grinding and rubbing component, a first screw conveyor 3 is installed at the discharge hopper 2, a second screw conveyor 4 is installed at the outer side wall of the first screw conveyor 3, a guide hopper 5 is installed at the outer side wall of the second screw conveyor 4, and the discharge port of the guide hopper 5 extends into the drum screen body 1.

[0017] The grinding and rubbing assembly includes a first grinding and rubbing screen 6 and a second grinding and rubbing screen 7. The outer wall of the first grinding and rubbing screen 6 is installed with a frame 8, and the second grinding and rubbing screen 7 is slidably set on the frame 8. The bottom of the first grinding and rubbing screen 6 is installed with a material receiving plate 9, and the second grinding and rubbing screen 7 is installed with a driving assembly 13 for driving its reciprocating motion.

[0018] A receiving hopper 10 is installed at the material receiving end of the first rolling screen 6, and a baffle 11 is installed on the second rolling screen 7, which fits the inside of the receiving hopper 10. The receiving hopper 10 is detachably connected to the drum screen body 1.

[0019] One side of the corresponding baffle 11 of the receiving hopper 10 is open, and the baffle 11 can be folded in half to adjust the size of the receiving hopper by the movement of the second grinding and rubbing screen 7 .

[0020] A plurality of limit plates 12 are installed at the inner end of the receiving hopper 10. The limit plates 12 are located on the path of the baffle 11 and are used to squeeze coarse particles and agglomerated materials. When larger agglomerated fertilizers cannot enter between the first grinding screen 6 and the second grinding screen 7, the larger agglomerated fertilizers pass through the inclined surface of the receiving hopper 10 and reach the limit plates 12. During the movement of the second grinding screen 7, the baffle 11 is driven to squeeze the larger agglomerated fertilizers located at the limit plates 12 and crush them.

[0021] The discharge hopper 2 is installed between the end of the first grinding screen 6 and the first screw conveyor 3, and the driving component 13 is installed at the upper end of the discharge hopper 2. The protruding end of the driving component 13 is connected to the second grinding screen 7 through a connecting rod.

[0022] The driving component 13 is an electric telescopic rod.

[0023] Working principle: When the present invention is used, the drum screen body 1 screens out larger particles and agglomerated fertilizers and falls into the receiving hopper 10 along the inclined drum screen body 1, and the fertilizer enters between the first grinding screen 6 and the second grinding screen 7. By starting the driving component 13, the second grinding screen 7 is driven to move repeatedly on the frame 8 to grind the fertilizer between the first grinding screen 6 and the second grinding screen 7, so that the ground fertilizer enters the receiving plate 9 through the first grinding screen 6, and the fertilizer that meets the particle size enters the first screw conveyor 3 through the discharge hopper 2. The first screw conveyor 3 transports the fertilizer to the second bolt conveyor 4, and then introduces the fertilizer into the guide hopper 5, and then sends it to the drum screen body 1 through the guide hopper 5 for screening again. The larger particles and agglomerated fertilizers are repeatedly ground by the grinding component until the larger particles and agglomerated fertilizers are ground into particles that meet the standards.

[0024] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A coarse screen lifting device, comprising a drum screen body (1), characterized in that: The discharging end of the drum screen body (1) is equipped with a grinding assembly for grinding coarse particles and agglomerated materials, the discharging end of the grinding assembly is equipped with a discharging hopper (2), the discharging hopper (2) is equipped with a first screw conveyor (3), the outer side wall of the first screw conveyor (3) is equipped with a second screw conveyor (4), the outer side wall of the second screw conveyor (4) is equipped with a guide hopper (5), and the discharging port of the guide hopper (5) extends into the drum screen body (1); The grinding assembly comprises a first grinding screen (6) and a second grinding screen (7); the outer wall of the first grinding screen (6) is provided with a frame (8); the second grinding screen (7) is slidably arranged on the frame (8); a material receiving plate (9) is provided at the bottom of the first grinding screen (6); and a driving assembly (13) for driving the second grinding screen (7) to reciprocate is provided.

2. The coarse screen lifting device according to claim 1, characterized in that: A receiving hopper (10) is installed at the material receiving end of the first rolling screen (6), and a baffle (11) is installed on the second rolling screen (7) to fit the inside of the receiving hopper (10). The receiving hopper (10) is detachably connected to the drum screen body (1).

3. The coarse screen lifting device according to claim 2, characterized in that: A plurality of limiting plates (12) are installed at the inner end of the receiving hopper (10), and the limiting plates (12) are located on the path of the baffle (11) and are used for squeezing coarse particles and agglomerated materials.

4. The coarse screen lifting device according to claim 1, characterized in that: The discharge hopper (2) is installed between the end of the first grinding screen (6) and the first screw conveyor (3), the drive assembly (13) is installed at the upper end of the discharge hopper (2), and the protruding end of the drive assembly (13) is connected to the second grinding screen (7) through a connecting rod.

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