Pesticide preparation polymerization method spray fluidization granulation tower equipment

Abstract

The utility model discloses a pesticide preparation polymerization method spray fluidization prilling tower device which comprises a fluidization tower mechanism, a cyclone separator, a bag-type dust remover, an induced draft fan and a water film dust remover, the fluidization tower mechanism comprises a main tower, and an atomization nozzle is arranged on the upper portion in the main tower. The main tower is communicated with the upper part of the primary cyclone separator through a pipeline, the primary cyclone separator is communicated with the bag-type dust collector through a pipeline and is connected with the induced draft fan, the induced draft fan is communicated with the water film dust collector, and the upper part of the main tower is provided with an air feeder for conveying hot air into the main tower; wet particles treated by the pretreatment grinding mechanism are connected with an atomizing nozzle through management, the lower part of the main tower is provided with a multi-layer fluidized drying bed, the multi-layer fluidized drying bed is connected with a conveying cyclone separator, and the lower part of the conveying cyclone separator is communicated with a screening machine. The device is suitable for pesticide preparation particles, and the product particles are uniform and less in fine powder.

Description

Technical Field

[0001] The utility model relates to a pesticide preparation polymerization method spray fluidization granulation tower equipment. Background Art

[0002] The polymerization spray fluidized granulation drying tower combines pressure spray drying technology and multi-layer fluidized granulation drying technology. It is mainly used for polymerization granulation in the tower during spray drying and built-in multi-layer fluidized secondary granulation system to dry DF slurry or water-soluble fertilizer slurry into 20-80 mesh particles at one time. The granules of pesticide preparations made by conventional granulation towers will result in small particles, more fine powder, clumping in water, and long wetting time. Summary of the invention

[0003] The utility model aims to provide a pesticide preparation polymerization method spray fluidized granulation tower equipment which is suitable for pesticide preparation granules, has uniform product granules and less fine powder.

[0004] In order to achieve the above-mentioned purpose, the technical scheme of the utility model is: a pesticide formulation polymerization method spray fluidized granulation tower equipment, including a fluidized tower mechanism, a cyclone separator, a bag dust collector, an induced draft fan and a water film dust collector, the fluidized tower mechanism includes a main tower, the upper part of the main tower is provided with an atomizing nozzle, the main tower is connected with the upper part of the first-level cyclone separator through a pipeline, the first-level cyclone separator is connected with the bag dust collector through a pipeline, and is connected to the induced draft fan, the induced draft fan is connected with the water film dust collector, the upper part of the main tower is provided with a blower for conveying hot air to the inside of the main tower, and also includes a pre-treatment grinding mechanism, a screening machine and a conveying cyclone separator, the wet particles treated by the pre-treatment grinding mechanism are connected with the atomizing nozzle through management, the lower part of the main tower has a multi-layer fluidized drying bed, the multi-layer fluidized drying bed is connected with the conveying cyclone separator, and the lower part of the conveying cyclone separator is connected with the screening machine.

[0005] Preferably, the upper part of the conveying cyclone separator has a pipeline connected to the lower part of the cyclone separator and then conveyed into the main tower. The unqualified particles produced by the conveying cyclone separator and the cyclone separator can be transported to the main tower again for circulation and drying.

[0006] Preferably, the pre-treatment grinding mechanism comprises a batching tank, an intermediate tank, a first grinder, a second grinder, a mixing tank, a filter and a high-pressure pump which are sequentially connected through pipelines, and the high-pressure pump is connected to an atomizing nozzle through a pipeline. The powder is subjected to a series of treatments to obtain wet particles, which are convenient for subsequent main tower drying and fluidization.

[0007] Preferably, the screening machine is provided with a finished product particle discharging port to facilitate the discharging of the finished product particles.

[0008] Preferably, it also includes a cleaning head extending into the main tower, and the cleaning head is connected to an external water tank through a water pump, so as to facilitate cleaning of the interior of the main tower.

[0009] Preferably, the multi-layer fluidized drying bed further comprises a fluidized fan and a fluidized heat source, and the air delivered by the fluidized fan is heated by the fluidized heat source and delivered to the multi-layer fluidized drying bed. Using an external heat source to deliver hot air to the multi-layer fluidized drying bed is convenient and reliable.

[0010] After adopting the above structure, the material of the utility model is first processed by the pre-treatment grinding mechanism to form wet particles, and then enters the main tower. A multi-layer fluidized drying bed is provided at the lower part of the main tower. The upward heat flow of the multi-layer fluidized drying bed and the downward heat flow of the main tower form a mixed flow cyclone. The particles are suspended in the main tower and have a long residence time. Therefore, it is suitable for pesticide preparation particles, and the finished product particles are uniform and have less fine powder. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the utility model. DETAILED DESCRIPTION

[0012] The present invention will be further described in detail below with reference to the embodiments given in the accompanying drawings.

[0013] See also Figure 1 As shown, it includes a fluidized tower mechanism 1, a cyclone separator 2, a bag dust collector 3, an induced draft fan 4 and a water film dust collector 5. The fluidized tower mechanism 1 includes a main tower 11. An atomizing nozzle 12 is provided at the upper part of the main tower 11. The atomizing nozzle 12 sprays the wet particles processed by the pre-treatment grinding mechanism 6 into the main tower 11. The upper part of the main tower 11 is provided with a blower 13 for conveying hot air to the inside of the main tower 11. The wind of the blower 13 passes through a cylinder with a cavity, and the cylinder has an electric heating wire, so hot air can be conveyed. The device has the same structure as the fluidized heat source 82. The vertical downward hot air of 80-135°C input into the main tower 11 enhances the heat transfer effect.

[0014] The upper part of the main tower 11 is connected to the upper part of the cyclone separator 2 through a pipeline, the cyclone separator 2 is connected to the bag dust collector 3 through a pipeline, and is connected to the induced draft fan 4, the induced draft fan 4 is connected to the water film dust collector 5, and the dust is removed by the traction of the induced draft fan 4.

[0015] The multi-layer fluidized drying bed 8 also includes a fluidizing fan 81 and a fluidizing heat source 82. The wind delivered by the fluidizing fan 81 is heated by the fluidizing heat source 82 and delivered to the multi-layer fluidized drying bed 8. The hot wind is directed vertically upward from the bottom of the main tower 11, and is offset by the hot wind directed vertically downward in the main tower 11. The particles can be suspended in the main tower 11, thereby enhancing the drying effect.

[0016] The upper part of the conveying cyclone separator 9 has a pipeline connected with the pipeline at the lower part of the cyclone separator 2 and then conveyed into the main tower 11. The particles of substandard size separated by the conveying cyclone separator 9 and the cyclone separator 2 are simultaneously circulated into the main tower 11 for circulation treatment. The heat energy exchange rate is high and the heat energy utilization rate is high.

[0017] See also Figure 1 As shown, the pre-treatment grinding mechanism 6 includes a batching tank 61, an intermediate tank 62, a first grinder 63, a second grinder 64, a mixing tank 65, a filter 66 and a high-pressure pump 67 which are sequentially connected through pipelines, and the high-pressure pump 67 is connected to the atomizing nozzle 12 through a pipeline. The pre-treatment system is to wet-grind the powder after adding water to the mixture, and the particles after wet grinding are 2-5UM.

[0018] The screening machine 7 is provided with a finished product particle discharge port 71 .

[0019] See also Figure 1 As shown, the upper part of the main tower 11 is also provided with a cleaning head 15 extending into the main tower 11, and the cleaning head 15 can be connected to an external water tank 17 through a water pump 16 to achieve 365-degree spray cleaning.

[0020] See also Figure 1 As shown, when the utility model is used, the pre-treatment grinding mechanism 6 mixes the powder with water and then wet grinds it. After wet grinding, the particles are 2-5UM. The material is sprayed into the tower from the top atomizing nozzle 12 of the main tower 11 through the high-pressure pump 67. The atomizing nozzle 12 is atomized into droplets with an atomization angle of 70-90°. The droplets between the atomizing nozzles 12 have an agglomeration effect of colliding with each other. The droplets come into contact with the hot air with very low relative humidity, and a strong heat exchange occurs instantly between the two. The heat energy of the hot air is supplied to the droplets to evaporate their water. The particles in the main tower 11 aggregate because the water vapor is discharged from the upper part, and the fine powder or fine particles are suspended in the tower. When aggregated into larger particles, the specific gravity increases and falls to the multi-layer fluidized drying bed 8 for drying, so that the material is dried into particles with qualified final moisture content. The material is stably and uniformly fluidized granulated and dried in the multi-layer fluidized drying bed 8 at low temperature (50-80°C) and low humidity. During the fluidized secondary granulation, the particles collide with each other during fluidization, so that the specific gravity of the material increases and larger particles are formed. After granulation, the particles are continuously fluidized and dried again in the second layer, and the air selection design selects the fine powder to the first layer of the bed surface, so that the final moisture content of the finished product is qualified.

[0021] About 10-15% of fine powder and wet air are drawn into the cyclone separator 2 and the water film dust collector 5 from the air outlet pipe at the top of the main tower 11 by the induced draft fan 4 for separation, and the tail gas is discharged into the atmosphere. The fine powder separated from the cyclone separator 2 and the screening machine 7 is returned to the main tower 11 through the powder return pipeline to agglomerate with the atomized beads. Therefore, the utility model is suitable for pesticide preparation particles, and the finished particles are uniform and less fine powder.

[0022] The above is only a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several modifications and improvements without departing from the inventive concept of the present invention, and these modifications and improvements all fall within the protection scope of the present invention.

Claims

1. A pesticide preparation polymerization spray fluidized granulation tower equipment, comprising a fluidized tower mechanism (1), a cyclone separator (2), a bag dust collector (3), an induced draft fan (4) and a water film dust collector (5), wherein the fluidized tower mechanism (1) comprises a main tower (11), an atomizing nozzle (12) is provided in the upper part of the main tower (11), the main tower (11) is connected to the upper part of the primary cyclone separator (2) through a pipeline, the primary cyclone separator (2) is connected to the bag dust collector (3) through a pipeline, and is connected to the induced draft fan (4), the induced draft fan (4) is connected to the water film dust collector (5), the upper part of the main tower (11) is provided with a blower (13) for conveying hot air to the inside of the main tower (11), characterized in that: The main tower (11) further comprises a pre-treatment grinding mechanism (6), a sieving machine (7) and a conveying cyclone separator (9). The wet particles treated by the pre-treatment grinding mechanism (6) are connected to an atomizing nozzle (12) through a management system. The lower part of the main tower (11) comprises a multi-layer fluidized drying bed (8), the multi-layer fluidized drying bed (8) is connected to the conveying cyclone separator (9), and the lower part of the conveying cyclone separator (9) is connected to the sieving machine (7).

2. The pesticide preparation polymerization spray fluidized granulation tower equipment according to claim 1, characterized in that: The upper portion of the conveying cyclone separator (9) has a pipeline which is connected to the lower portion of the cyclone separator (2) and then conveyed into the main tower (11).

3. The pesticide preparation polymerization spray fluidized granulation tower equipment according to claim 1, characterized in that: The pre-treatment grinding mechanism (6) comprises a batching tank (61), an intermediate tank (62), a first grinder (63), a second grinder (64), a blending tank (65), a filter (66) and a high-pressure pump (67) which are sequentially connected via pipelines, and the high-pressure pump (67) is connected to an atomizing nozzle (12) via a pipeline.

4. The pesticide preparation polymerization spray fluidized granulation tower equipment according to claim 1, characterized in that: The screening machine (7) is provided with a finished product particle discharge port (71).

5. The pesticide preparation polymerization spray fluidized granulation tower equipment according to claim 1, characterized in that: The utility model also comprises a cleaning head (15) extending into the main tower (11), and the cleaning head (15) is connected to an external water tank (17) through a water pump (16).

6. The pesticide preparation polymerization spray fluidized granulation tower equipment according to claim 1, characterized in that: The multi-layer fluidized drying bed (8) further comprises a fluidizing fan (81) and a fluidizing heat source (82). The wind delivered by the fluidizing fan (81) is heated by the fluidizing heat source (82) and delivered to the multi-layer fluidized drying bed (8).

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