CN104406377B - A kind of chemical fertilizer dries screening machine - Google Patents

Abstract

This patent application discloses a chemical fertilizer drying and screening machine, which includes a drum, a cold air blower and a vibrating screen; a toothed ring and a supporting ring are arranged on the outer wall of the drum, and the toothed ring is arranged in the supporting ring, and the bottom of the supporting ring corresponds to There is a motor, and the supporting ring is connected with the motor transmission. The two ends of the drum are respectively provided with a material inlet and a material outlet; a cold air blower is installed at one end of the material outlet; Each layer of the vibrating screen has a sieve hole diameter from large to small according to the number of layers of the vibrating screen, and the vibrating screen is equipped with a sloping plate at one end, and the sloping plate is connected to the charging box. The invention can remove and collect dust and powder in the process of drying fertilizer granules, which saves the steps for workers to clean dust and powder and avoids the softening of fertilizer granules caused by water vapor generated when the temperature is too high during packaging. The dried fertilizer particles can be packaged separately according to different sizes, which is convenient for saving fertilizer during fertilization.

Description

A fertilizer drying and screening machine

technical field

The invention relates to a chemical fertilizer production equipment, in particular to a chemical fertilizer drying and screening machine.

Background technique

In the production of fertilizers, it is necessary to dry the granulated fertilizers to form dry solid particles, which are convenient for storage and transportation. During the drying process, the material needs to be raised by the lifting board to form a material curtain to exchange with hot air to dry the material to avoid particle adhesion or local overheating. Nowadays, many dryers use hot air to dry, and the hot air and solid particles are mixed together in the inner cavity of the drum. Because it is difficult to control the flow direction of the hot air, the drying effect is unstable, and the fertilizer particles will be produced during the drying process. Certain dust and fine powder, if they cannot be separated, will have a certain impact on the quality of the fertilizer. After drying, the fertilizer granules cannot be packaged immediately after high temperature, otherwise a large amount of water vapor will be generated after packaging to soften the dried fertilizer granules, and it is necessary to wait for the fertilizer granules to cool before packaging, which will affect the efficiency of packaging. The solid particles are of different sizes. If they are not sorted and packaged, it will inevitably cause waste during the fertilization process.

Contents of the invention

The purpose of the present invention is to address the deficiencies in the prior art. The present invention provides a fertilizer drying and screening machine that can not only help the fertilizer particles to cool, but also separate dust and powder, and can also screen according to the size of the discharged fertilizer particles. .

The scheme is as follows:

A fertilizer drying and screening machine, including a drum, a cooling device and a screening device; the inner wall of the drum is provided with a lifting plate, and the outer wall is provided with a gear ring and a support ring, and the gear ring and the ring gear are arranged in the support ring. A motor is provided under the supporting ring, and the supporting ring is connected to the motor through transmission. The two ends of the drum are respectively provided with a material inlet and a material outlet.

Preferably, the cooling device is a cold air blower. Since the blower is located at the discharge port, when the fertilizer particles are sent out from the discharge port, the cold wind blown by the blower can reduce the temperature of the surface of the dried fertilizer and will be mixed in the fertilizer particles. Dust is separated from powder.

Preferably, a collection box may be provided at the lower end of the discharge port to facilitate the collection of dust and powder.

Preferably, the screening device is provided with multi-layer vibrating screens from top to bottom, and the aperture diameter of each layer of vibrating screens is gradually reduced from top to bottom according to the number of layers of vibrating screens, so it can be classified according to the size of the dried fertilizer particles .

Preferably, one end of the vibrating screen can be provided with a sloping plate, and the sloping plate is connected to the charging box, so as to reduce the fertilizer particles in the vibrating screen and make the screening effect better.

The principle of this scheme is as follows: when the dried fertilizer granules are sent out from the discharge port, the cold air blower blows cold air to cool the surface of the fertilizer granules, avoiding the generation of water vapor during packaging, thereby speeding up the packaging efficiency and mixing in the fertilizer granules The dust and powder in the fertilizer are blown into the collection box, which saves the steps of manually cleaning the dust and powder; because the vibrating sieve has mesh holes with different diameters, when the dried fertilizer particles fall into the vibrating sieve, they are shaken off by vibration. Fertilizer particles of different sizes fall into the corresponding vibrating screen, which is convenient for the staff to sort and pack.

The advantages of the present invention are: 1. Dust and powder can be removed and collected in a centralized manner, eliminating the need for workers to clean the dust and powder; 2. Cooling the dried fertilizer granules to avoid water generation when the temperature is too high during packaging The steam causes the fertilizer particles to soften, and also speeds up the packaging efficiency; 3. The dried fertilizer particles can be packaged separately according to different sizes, which is convenient for saving fertilizer during fertilization.

Description of drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

detailed description

The present invention will be described in further detail below by means of specific embodiments:

Reference signs: drum 1, gear ring 2, support ring 3, motor 4, material inlet 5, material outlet 6, cold air blower 7, dust collection box 8, vibrating screen 9, sieve hole 10, inclined plate 11, loading Material box 12.

A fertilizer drying and screening machine, comprising a drum 1, a cold air blower 7 and a vibrating screen 9; the outer wall of the drum 1 is provided with a toothed ring 2 and a supporting ring 3, the toothed ring 2 is arranged in the supporting ring 3, and the supporting ring The bottom of 3 is correspondingly provided with motor 4, and supporting ring 3 is connected with motor 4 by transmission, and the two ends of described drum 1 are respectively provided with material inlet 5 and material outlet 6; When the fertilizer particles are sent out from the discharge port 6, the cold air blown by the cold air blower 7 can lower the surface temperature of the dried fertilizer and separate the dust mixed in the fertilizer particles from the powder. Box 8, which can concentrate dust and powder; the lower end of the discharge port 6 is a vibrating screen 9, and the vibrating screen 9 is equipped with multiple layers. Gradually shrink, it can be classified according to the size of the dried fertilizer particles, and the vibrating screen 9 is provided with a sloping plate 11 at one end, and the sloping plate 11 is connected to the charging box 12, which is convenient to reduce the fertilizer particles in the vibrating screen 9, so that the screened Better results.

When in use, put the fertilizer granules that need to be dried into the feed inlet 5 and then send them into the drum 1 for drying. The dried fertilizer granules fall into the vibrating screen 9. When sending out, the cold air blower 7 blows cold air to cool the surface of the fertilizer granules, avoiding the generation of water vapor when packing, thereby speeding up the efficiency of packing and blowing the dust and powder mixed in the fertilizer granules into the dust collection box 8, saving The step of manually cleaning dust and powder is eliminated; since the vibrating screen 9 is provided with sieve holes 10 with different diameters, when the dried fertilizer particles fall into the vibrating screen 9, the fertilizer particles of different sizes will fall to the corresponding vibrating screen through vibration. In the sieve 9, it is convenient for the staff to classify and pack, because the vibrating screen 9 is provided with a sloping plate 11 at one end, and the sloping plate 11 is connected to the charging box 12, which is convenient to reduce the fertilizer particles in the vibrating screen 9, so that the screening effect is better.

What is described above is only an embodiment of the present invention, and common knowledge such as specific structures and characteristics known in the scheme are not described here too much. It should be pointed out that for those skilled in the art, under the premise of not departing from the structure of the present invention, several modifications and improvements can also be made, and these should also be regarded as the protection scope of the present invention, and these will not affect the implementation of the present invention. Effects and utility of patents. The scope of protection required by this application shall be based on the content of the claims, and the specific implementation methods and other records in the specification may be used to interpret the content of the claims.

Claims (2)

1. a chemical fertilizer dries screening machine, it is characterised in that include cylinder, cold blower and vibrosieve；Described inner wall of rotary drum is provided with lifting blade, and its outer wall is provided with ring gear and filler ring, and described ring gear is located in filler ring, and the lower section of filler ring is provided with motor, and filler ring is connected with electric-motor drive, described cylinder be respectively arranged at two ends with feeding mouth and discharging opening ；Cold blower is located at discharging opening one end；Discharging opening lower end is vibrosieve, and vibrosieve is provided with multilamellar, and the sieve aperture bore of every layer of vibrosieve is gradually reduced from top to bottom according to the number of plies of vibrosieve, and vibrosieve is at one end provided with swash plate, and swash plate connects charging box.

2. dry screening machine according to a kind of chemical fertilizer described in claim 1, it is characterised in that discharging opening one end is additionally provided with dust collecting bin.