Screening equipment for granular fertilizer

Abstract

The utility model discloses a granular fertilizer screening device which comprises a base and further comprises a conical screen barrel, the two ends of the conical screen barrel are rotationally connected with a first supporting frame and a second supporting frame respectively, and the inner wall of the conical screen barrel is fixedly connected with a hollow spiral blade. The driving device drives the conical screen barrel to rotate, the conical screen barrel can drive entered fertilizer to turn over and be screened, meanwhile, the hollow spiral blades fixed in the conical screen barrel can drive the fertilizer to be conveyed in the screening process, and therefore screened coarse materials can be output from the other end of the conical screen barrel, the structure is reasonable, and the practicability is high. Automatic screening of the fertilizer is facilitated, and meanwhile better screening efficiency and effect are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of screening equipment, in particular to screening equipment for granular fertilizers. Background Art

[0002] Granular fertilizers are solid fertilizers made of chemical fertilizers such as superphosphate or ammonium nitrate, or mixed with organic fertilizers and superphosphate, and are made into a predetermined average particle size. Chemical fertilizers are mostly made into granular fertilizers. Chemical fertilizers (such as phosphate fertilizers) can also be mixed with compost, manure or mud in an appropriate proportion to form granular fertilizers. Granular fertilizers can reduce the hygroscopicity of fertilizers, reduce pollution to the environment, and are also convenient for application. Some water-soluble phosphate fertilizers can reduce chemical fixation in the soil after being made into granular fertilizers. Screening equipment is required in the production and manufacturing process of granular fertilizers. However, most of the existing screening equipment cannot screen the granular fertilizers efficiently when in use. The screening equipment is less efficient in screening granular fertilizers, which is inconvenient for staff to use and reduces the work efficiency of staff.

[0003] However, the existing fertilizer screening equipment has certain drawbacks. When the existing fertilizer is screened, the fertilizer will pile up when it is loaded, which makes the fertilizer not evenly screened. Secondly, the existing screening device cannot automatically load, screen and unload the fertilizer, which affects the effect and efficiency of fertilizer screening. Utility Model Content

[0004] In order to solve the above problems, the utility model provides a screening device for granular fertilizers, and the utility model is realized through the following technical solutions.

[0005] A screening device for granular fertilizers comprises a base and also comprises:

[0006] A conical screen cylinder, wherein the two ends of the conical screen cylinder are rotatably connected to a first support frame and a second support frame respectively, and the inner wall of the conical screen cylinder is fixedly connected to a hollow spiral blade;

[0007] A lifting cylinder, wherein the outer surface of one end of the lifting cylinder is fixedly connected with a material storage tank, the outer surface of the other end of the lifting cylinder is penetrated and connected with a feeding pipe, a first motor is fixedly installed on the top of the lifting cylinder, an output shaft of the first motor is fixedly connected with equidistant spiral blades, and the equidistant spiral blades rotate inside the lifting cylinder;

[0008] A driving device is used to drive the conical screen drum to rotate and feed materials.

[0009] Furthermore, one end of the first support frame and one end of the second support frame are both fixedly connected to the top of the base.

[0010] Furthermore, a material receiving box is arranged on the top of the base, and the material receiving box is arranged in the lower middle part of the conical screen cylinder.

[0011] Furthermore, the inner wall of the material storage tank is an inclined surface, and the lifting cylinder is connected to the material storage tank.

[0012] Furthermore, the other end of the feeding pipe extends to the interior of the conical screen cylinder.

[0013] Furthermore, the conical screen cylinder and the base form an angle of 20°.

[0014] Furthermore, the driving device is provided with a second motor, and the second motor is fixedly mounted on the second support frame, the output shaft of the second motor is fixedly connected to the second gear, one end of the conical screen cylinder is fixedly sleeved with a first gear, and the first gear is meshingly connected to the second gear.

[0015] The beneficial effect of the utility model is that, during the operation of the device, the first motor is first turned on to drive the equidistant spiral blades to rotate, the equidistant spiral blades can drive the fertilizer inside the storage tank to be lifted, and the lifted fertilizer is input into the conical screen cylinder through the feeding pipe, and then the conical screen cylinder is driven to rotate by the driving device, the conical screen cylinder can drive the entering fertilizer to be turned over and screened, and at the same time, the hollow spiral blades fixed inside the conical screen cylinder can drive the fertilizer screening process to be transported, so that the screened coarse material can be output from the other end of the conical screen cylinder, the structure is reasonable, the fertilizer is convenient for automatic screening, and at the same time, it has better screening efficiency and effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solution of the present invention, the drawings required for use in the description of the specific implementation methods will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 : A schematic diagram of the structure of a screening device for granular fertilizers according to the utility model;

[0018] Figure 2 : Schematic diagram of the connection between the lifting cylinder and the material storage tank of the utility model;

[0019] Figure 3 : Schematic diagram of the cross-sectional structure of the utility model conical screen cylinder.

[0020] The reference numerals are as follows:

[0021] 1. Base;

[0022] 2. Conical screen cylinder; 201. First support frame; 202. Second support frame; 203. Hollow spiral blade; 204. First gear;

[0023] 3. Lifting cylinder; 301. First motor; 302. Equidistant spiral blades; 303. Feeding pipe;

[0024] 4. Storage trough;

[0025] 5. Material receiving box;

[0026] 6. Second motor; 601. Second gear. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] like Figure 1-3 As shown, the utility model has the following specific embodiments.

[0029] Example:

[0030] A screening device for granular fertilizers comprises a base 1 and also comprises:

[0031] A conical screen cylinder 2, wherein the two ends of the conical screen cylinder 2 are rotatably connected to a first support frame 201 and a second support frame 202, and the inner wall of the conical screen cylinder 2 is fixedly connected to a hollow spiral blade 203;

[0032] A lifting cylinder 3, one end of the outer surface of the lifting cylinder 3 is fixedly connected with a material storage tank 4, the other end of the outer surface of the lifting cylinder 3 is penetrated and connected with a feeding pipe 303, the top of the lifting cylinder 3 is fixedly installed with a first motor 301, the output shaft of the first motor 301 is fixedly connected with an equidistant spiral blade 302, and the equidistant spiral blade 302 rotates inside the lifting cylinder 3;

[0033] The driving device is used to drive the conical screen cylinder 2 to rotate and feed materials.

[0034] By adopting the above technical solution, when using the device, first turn on the first motor 301 to drive the equidistant spiral blades 302 to rotate. The equidistant spiral blades 302 can drive the fertilizer inside the storage tank 4 to be lifted, so that the lifted fertilizer is input into the conical screen cylinder 2 through the feeding pipe 303, and then the conical screen cylinder 2 is driven to rotate by the driving device. The conical screen cylinder 2 can drive the entering fertilizer to be turned over and screened. At the same time, the hollow spiral blades 203 fixed inside the conical screen cylinder 2 can drive the fertilizer screening process to be transported, so that the screened coarse material can be output from the other end of the conical screen cylinder 2. The structure is reasonable, which is convenient for automatic screening of fertilizers and has better screening efficiency and effect.

[0035] Specifically, one end of the first support frame 201 and one end of the second support frame 202 are both fixedly connected to the top of the base 1 .

[0036] By adopting the above technical solution, the first support frame 201 and the second support frame 202 can support the conical screen cylinder 2 above the base 1, and the conical screen cylinder 2 can rotate on the first support frame 201 and the second support frame 202.

[0037] Specifically, a material receiving box 5 is arranged on the top of the base 1 , and the material receiving box 5 is arranged in the middle and lower part of the middle part of the conical screen cylinder 2 .

[0038] By adopting the above technical solution, the provided receiving box 5 can receive the fertilizer screened by the conical screen drum 2 .

[0039] Specifically, the inner wall of the material storage tank 4 is an inclined surface, and the lifting cylinder 3 is connected to the material storage tank 4;

[0040] The other end of the feeding pipe 303 extends to the interior of the conical screen cylinder 2 .

[0041] By adopting the above technical solution, the inner wall of the storage trough 4 is designed with an inclined surface, which can make the fertilizer lifting cylinder 3 inside the storage trough 4 slide down. At the same time, the material lifted by the lifting cylinder 3 can be transported to the inside of the conical screen cylinder 2 through the feeding pipe 303, thereby facilitating automatic feeding and screening of the fertilizer.

[0042] Specifically, the conical screen cylinder 2 and the base 1 form an angle of 20°.

[0043] The driving device is provided with a second motor 6, and the second motor 6 is fixedly mounted on the second support frame 202, the output shaft of the second motor 6 is fixedly connected to the second gear 601, one end of the conical screen cylinder 2 is fixedly sleeved with a first gear 204, and the first gear 204 is meshingly connected to the second gear 601.

[0044] By adopting the above technical scheme, the conical screen drum 2 can be driven to rotate, so that the conical screen drum 2 drives the fertilizer inside to rotate, screen and transport, that is, the second motor 6 can drive the second gear 601 to rotate, the second gear 601 can drive the first gear 204 to rotate, the first gear 204 can drive the conical screen drum 2 to rotate on the first support frame 201 and the second support frame 202, the conical screen drum 2 can drive the fertilizer inside to be turned over and screened, and at the same time, the hollow spiral blades 203 fixed inside the conical screen drum 2 can drive the fertilizer to be transported during the rotation process, wherein the conical screen drum 2 forms an angle of 20° with the base 1, which facilitates the downward output of the turned fertilizer.

[0045] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A screening device for granular fertilizers, comprising a base (1), characterized in that: Also includes: A conical screen cylinder (2), wherein two ends of the conical screen cylinder (2) are rotatably connected to a first support frame (201) and a second support frame (202), and the inner wall of the conical screen cylinder (2) is fixedly connected to a hollow spiral blade (203); A lifting cylinder (3), wherein the outer surface of one end of the lifting cylinder (3) is fixedly connected to a material storage tank (4), and the outer surface of the other end of the lifting cylinder (3) is penetrated by a feeding pipe (303). A first motor (301) is fixedly installed on the top of the lifting cylinder (3), and an output shaft of the first motor (301) is fixedly connected to an equidistant spiral blade (302), and the equidistant spiral blade (302) rotates inside the lifting cylinder (3); A driving device is used to drive the conical screen drum (2) to rotate and feed materials.

2. A granular fertilizer screening device according to claim 1, characterized in that: One end of the first support frame (201) and one end of the second support frame (202) are both fixedly connected to the top of the base (1).

3. A granular fertilizer screening device according to claim 1, characterized in that: A material receiving box (5) is mounted on the top of the base (1), and the material receiving box (5) is arranged in the lower middle part of the conical screen cylinder (2).

4. A granular fertilizer screening device according to claim 1, characterized in that: The inner wall of the material storage trough (4) is an inclined surface, and the lifting cylinder (3) is connected to the material storage trough (4).

5. The granular fertilizer screening device according to claim 1, characterized in that: The other end of the feeding pipe (303) extends to the interior of the conical screen cylinder (2).

6. A granular fertilizer screening device according to claim 1, characterized in that: The conical screen cylinder (2) and the base (1) form an angle of 20°.

7. A granular fertilizer screening device according to claim 1, characterized in that: The driving device is provided with a second motor (6), and the second motor (6) is fixedly mounted on a second support frame (202); an output shaft of the second motor (6) is fixedly connected to a second gear (601); one end of the conical screen cylinder (2) is fixedly sleeved with a first gear (204), and the first gear (204) is meshingly connected to the second gear (601).

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