Chemical fertilizer screening anti-caking device

Abstract

The utility model discloses an anti-caking device for chemical fertilizer screening, which relates to the technical field of chemical fertilizer production and comprises a case mounted on a drum screening machine, a rotating roller is rotatably mounted in the case and abutted against the outer surface of a drum in the drum screening machine, and the axis of the rotating roller is parallel to that of the drum. A plurality of inserting blocks distributed in a divergent mode are arranged on the rotating roller and matched with the screening holes in the roller, a roller brush is arranged at the position, located on the lower side of the rotating roller, in the machine box, and a transmission assembly is arranged between the roller brush and the roller. According to the device, the purpose of automatically ejecting and cleaning chemical fertilizers blocked in the sieve pores can be achieved, the purpose of automatically sweeping and cleaning the outer surface of the roller can be achieved, the chemical fertilizers can be effectively prevented from caking on the outer surface of the roller, the cleaning effect and the anti-caking effect of the device are improved, and the device is suitable for popularization and application. And the drum cannot be damaged even if the drum screening machine runs for a long time, so that the service life of the drum screening machine is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical fertilizer production, in particular to an anti-caking device for chemical fertilizer screening. Background Technique

[0002] During the production process of compound fertilizer, a drum screening machine is often used. The drum screening machine is mainly used for the separation of finished products and returned materials, and can also realize the classification of finished products to make the finished products evenly classified. The drum screening machine mainly consists of a motor, a reducer, a drum device, a frame, a sealing cover, an inlet and outlet, etc. The drum device is installed on the frame, and the motor is connected to the drum device through a coupling via the reducer, driving the drum device to rotate around its axis. Since compound fertilizers themselves have a certain viscosity, during the screening process, sticky materials often adhere to the screen of the drum sieve, blocking the mesh holes of the drum sieve, greatly reducing the screening efficiency and affecting the screening effect.

[0003] An anti-caking device for a chemical fertilizer screening machine disclosed in the prior art CN 204134867 U includes a cross beam. The two ends of the cross beam are fixed on the frame of the chemical fertilizer screening machine. A number of swing rods are sleeved on the cross beam, and each swing rod is respectively rotatably connected to the cross beam. A rubber strip is installed at the free end of each swing rod; an arc-shaped groove is provided at the bottom of each swing rod, and a number of fixing rods extend radially outward from the outer wall of the lower part of the cross beam. The fixing rods pass through the corresponding arc-shaped grooves, and a spring is provided between each fixing rod and the corresponding swing rod. Although this utility model avoids the phenomenon of manually knocking the sieve to remove caking, liberates manpower, and as long as the sieve rotates, the rubber strip will whip the sieve to remove the chemical fertilizer particles on the sieve in real time, but because the chemical fertilizer blocked in the sieve holes of the drum sieve is more stable, the way of whipping the drum sieve is just a simple whipping of the outside of the drum, and it is still difficult to effectively remove the chemical fertilizer in the sieve holes, resulting in a poor removal effect. Moreover, a large force will be applied to the drum during whipping, and each whipping will cause the vibration of relevant components. Long-term whipping will inevitably cause damage to relevant components, affecting the service life of the screening machine and resulting in general practicality. Therefore, there is still room for improvement. Summary of the Utility Model

[0004] (1) Technical Problems to be Solved

[0005] Aiming at the deficiencies of the prior art, the utility model provides an anti-caking device for chemical fertilizer screening, which solves the problems raised in the above background technique.

[0006] (2) Technical Solutions

[0007] To achieve the above objectives, the utility model is realized through the following technical solutions: A fertilizer screening and anti-caking device includes a chassis installed on a drum screening machine. A rotating roller is rotatably installed inside the chassis. The rotating roller abuts against the outer surface of the drum inside the drum screening machine, and the axis of the rotating roller is parallel to the axis of the drum. A number of divergently distributed inserting blocks are provided on the rotating roller, and the inserting blocks are adapted to the sieve holes on the drum. A roller brush is provided below the rotating roller inside the chassis, and a transmission component is provided between the roller brush and the drum.

[0008] Optionally, a number of sliding grooves are opened inside the rotating roller. A sliding rod is slidably connected inside each of the number of sliding grooves. A spring is provided between the sliding rod and the sliding groove. The number of the inserting blocks is divided into several groups with the same number as the number of sliding rods, and each group of inserting blocks is fixedly installed on the sliding rod.

[0009] Optionally, the sliding rod is parallel to the axis of the rotating roller, and the number of sliding rods is annularly arrayed along the axis of the rotating roller.

[0010] Optionally, the transmission component includes an external gear ring and a gear. The external gear ring is sleeved and fixed on the outside of the drum. The gear is fixed at the outer end of the roller brush, and the external gear ring meshes with the gear.

[0011] Optionally, a maintenance opening and a blanking opening are respectively opened at the upper and lower parts of the chassis. The blanking opening is communicated with the inside of the drum screening machine.

[0012] Optionally, a cover plate is provided above the maintenance opening.

[0013] (III) Beneficial effects

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0015] 1. Through the setting of the rotating roller and the inserting blocks, the purpose of automatically ejecting and cleaning the fertilizer blocked in the sieve holes can be achieved, and effectively prevent the fertilizer from blocking and caking in the screening holes. Moreover, through the setting of the roller brush, the purpose of automatically sweeping and cleaning the outer surface of the drum can be achieved, which can effectively prevent the fertilizer from caking on the outer surface of the drum, ensure the cleanliness of the outer surface of the drum. And through the above double cleaning, the cleaning effect of the device can be effectively improved, further improving the anti-caking effect of the drum, so as to ensure the normal and efficient progress of the screening work;

[0016] 2. The traditional whipping cleaning is replaced by the rolling cleaning method. The rolling cleaning method will not exert great destructive force on the drum screening machine, nor will it cause the vibration of the drum. Therefore, even if it runs for a long time, it will not cause damage to the drum, thus ensuring the service life of the drum screening machine and improving its practicability to a certain extent. Description of the drawings

[0017] Figure 1 Schematic diagram of the three-dimensional structure of the present utility model in the installed state;

[0018] Figure 2 For the present utility model Figure 1 Enlarged structure diagram at position A in the present utility model;

[0019] Figure 3 Schematic diagram of the side three-dimensional structure of the present utility model;

[0020] Figure 4 Front view sectional structure diagram of the present utility model;

[0021] Figure 5 Schematic diagram of the three-dimensional structure of the rotating roller of the present utility model;

[0022] Figure 6 Sectional structure diagram of the rotating roller of the present utility model.

[0023] In the figure: 100, drum screening machine; 101, drum; 1, chassis; 2, rotating roller; 201, chute; 3, insertion block; 4, roller brush; 5, external gear ring; 6, gear; 7, sliding rod; 8, spring; 9, cover plate; 10, blanking port; 11, inspection port. Specific embodiments

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0025] The present utility model provides an embodiment of a fertilizer screening and anti-caking device as shown in Figures 1 to 6 : It includes a chassis 1 installed on a drum screening machine 100. The chassis 1 is located on one side of the drum 101 inside the drum screening machine 100. A rotating roller 2 is rotatably installed inside the chassis 1. The rotating roller 2 abuts against the outer surface of the drum 101, and the axis of the rotating roller 2 is parallel to the axis of the drum 101. A plurality of insertion blocks 3 distributed in a divergent manner are provided on the rotating roller 2. The insertion blocks 3 are adapted to the sieve holes on the drum 101, and the insertion blocks 3 can be inserted into the sieve holes on the drum 101;

[0026] As shown in Figure 6As shown in the figure, a number of sliding grooves 201 are formed inside the rotating roller 2. A number of sliding rods 7 are slidably connected inside the sliding grooves 201. A spring 8 is provided between the sliding rod 7 and the sliding groove 201. A number of inserting blocks 3 are divided into several groups with the same number as the sliding rods 7, and each group of inserting blocks 3 is fixedly installed on the sliding rod 7 respectively. The sliding rod 7 is parallel to the axis of the rotating roller 2, and the sliding rods 7 are distributed in a circular array along the axis of the rotating roller 2.

[0027] When the roller 101 on the drum screening machine 100 rotates and screens fertilizers, since the rotating roller 2 is in contact with the roller 101, the roller 101 can drive the rotating roller 2 to rotate along the outer surface of the roller 101 on the chassis 1 by the friction force between the two. During this process, when the inserting block 3 on the rotating roller 2 corresponds to the sieve holes on the roller 101, the inserting block 3 can be inserted into the sieve holes, and thus the fertilizers blocked in the sieve holes can be pushed out and fall back into the roller 101, so as to achieve the purpose of cleaning the fertilizers blocked in the sieve holes. When the inserting block 3 does not correspond to the sieve holes, the roller 101 can push the inserting block 3 into the rotating roller 2 by extrusion, so as to prevent jamming between the rotating roller 2 and the roller 101 and ensure the smooth operation of the device. And during the process of the inserting block 3 shrinking into the rotating roller 2, the spring 8 will also be compressed by pushing the sliding rod 7 to slide. Therefore, when this part of the inserting block 3 is separated from the roller 101, the inserting block 3 can be pushed out and reset under the rebounding force of the spring 8 to ensure the normal cleaning function in the follow-up.

[0028] A roller brush 4 is provided inside the chassis 1 below the rotating roller 2. The roller brush 4 abuts against the outer surface of the roller 101 and is parallel to it. A transmission component is provided between the roller brush 4 and the roller 101.

[0029] The transmission component includes an external gear ring 5 and a gear 6. The external gear ring 5 is sleeved and fixed on the outside of the roller 101. The gear 6 is fixed at the outer end of the roller brush 4, and the external gear ring 5 meshes with the gear 6.

[0030] An inspection opening 11 and a blanking opening 10 are respectively formed in the upper and lower parts of the chassis 1. The blanking opening 10 is communicated with the inside of the drum screening machine 100. A cover plate 9 is provided above the inspection opening 11.

[0031] During the rotation of the upper rotating roller 2 and the cleaning of the blockage in the sieve holes by the inserting block 3, the inserting block 3 will also drive the roller brush 4 to rotate on the rotating roller 2 through the external gear ring 5 and the gear 6. The rotating roller 2 can rotate and brush the outer surface of the roller 101 through its bristles, so as to brush off the fertilizers adhered to the outer surface of the roller 101 and fall into the inside of the drum screening machine 100 through the blanking opening 10 for collection, achieving the purpose of automatically sweeping and cleaning the outer surface of the roller 101. Therefore, it can effectively prevent fertilizers from caking on the outer surface of the roller 101 and ensure the normal and efficient progress of the screening work.

[0032] As described above, it is only the preferred specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its inventive concept, makes equivalent substitutions or changes, and should be covered within the protection scope of the present utility model.

Claims

1. A fertilizer screening anti-caking device, comprising a housing (1) mounted on a drum screening machine (100), characterized in that: A rotating roller (2) is rotatably mounted inside the chassis (1), the rotating roller (2) abuts against the outer surface of a drum (101) in a drum screening machine (100), and the axis of the rotating roller (2) is parallel to the axis of the drum (101), the rotating roller (2) is provided with a plurality of plug blocks (3) distributed in a divergent manner, the plug blocks (3) are matched with the sieve holes on the drum (101), a roller brush (4) is provided inside the chassis (1) at the lower side of the rotating roller (2), and a transmission assembly is provided between the roller brush (4) and the drum (101).

2. The fertilizer screening and anti-caking device according to claim 1 is characterized in that: A plurality of slide grooves (201) are provided inside the rotating roller (2), and a sliding rod (7) is slidably connected inside each of the slide grooves (201). A spring (8) is provided between the sliding rod (7) and the slide groove (201). The plurality of insert blocks (3) are divided into a plurality of groups whose number is the same as the number of the sliding rods (7), and each group of insert blocks (3) is fixedly mounted on the sliding rod (7).

3. The fertilizer screening and anti-caking device according to claim 2 is characterized in that: The sliding rod (7) is parallel to the axial direction of the rotating roller (2), and a plurality of sliding rods (7) are distributed in a ring array along the axis of the rotating roller (2).

4. The fertilizer screening and anti-caking device according to claim 1 is characterized in that: The transmission assembly comprises an outer gear ring (5) and a gear (6); the outer gear ring (5) is sleeved and fixed on the outside of the roller (101); the gear (6) is fixed on the outer end of the roller brush (4); and the outer gear ring (5) and the gear (6) are meshed.

5. The fertilizer screening and anti-caking device according to claim 1 is characterized in that: An inspection port (11) and a material drop port (10) are respectively provided at the upper and lower parts of the casing (1), and the material drop port (10) is communicated with the interior of the drum screening machine (100).

6. The fertilizer screening and anti-caking device according to claim 5, characterized in that: A cover plate (9) is provided on the upper portion of the inspection opening (11).

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