Special granulator for dinotefuran water dispersible granules

Abstract

The utility model relates to a special granulator for dinotefuran water dispersible granules, which comprises a granulation box and a horizontal drying bin, the granulation box is positioned at the top of the horizontal drying bin, the granulation box is communicated with the horizontal drying bin through a rotary feeding valve, a shaftless screw conveyor is rotatably mounted in the horizontal drying bin, and the shaftless screw conveyor is communicated with the horizontal drying bin through a rotary feeding valve. Two mounting grooves which are symmetrically distributed left and right are formed in the horizontal drying bin, two conveying pipes are fixedly mounted in each of the two mounting grooves, metal sintering filter screens are fixedly mounted in the two mounting grooves, and the metal sintering filter screens are located above the conveying pipes; the hot air pipe conveys external hot air into the conveying pipe and then the hot air is exhausted through the air outlet hole, so that the hot air moves upwards, particles entering the horizontal drying bin can be better dried, the shaftless spiral conveyor is suitable for viscous wet particles, and the situation that the particle drying rate is reduced due to material winding at the shaft rod is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to dinotefuran production technical field, concretely relates to a granulator special for dinotefuran water dispersible granule. BACKGROUND

[0002] Water dispersible granule as an environmental protection type pesticide preparation, because it is no dust, easy to dissolve, good stability and the like, is widely used in agricultural production, and dinotefuran is a new generation of neonicotinoid insecticide, and the preparation of its water dispersible granule is extremely harsh to drying process.

[0003] The existing granulation production device still needs to heat the granules after discharging from the granulation box, and the heating mode usually adopts the drying process of heating pipe radiation heat transfer and hot air convection coupling, and the granules fall along the vertical or inclined path short distance under the action of gravity, which leads to the rapid accumulation of materials to form a dense layer, the dense accumulation body greatly weakens the hot air penetration, simultaneously increases the mass transfer resistance coefficient, sharply reduces the gas-solid contact area, and the heat conduction efficiency is insufficient, and the drying efficiency is reduced. UTILITARIAN CONTENT

[0004] The utility model aims at providing a granulator special for dinotefuran water dispersible granule to overcome the above-mentioned deficiencies in prior art.

[0005] To achieve the above object, the technical scheme adopted by the utility model is as follows:

[0006] A granulator special for dinotefuran water dispersible granule, including granulation box and horizontal drying bin, the granulation box is located at the top of horizontal drying bin, the granulation box is communicated with horizontal drying bin through rotary feeder valve, the inside rotation of horizontal drying bin is equipped with shaftless screw conveyor, the inside of horizontal drying bin is provided with two installation grooves and is symmetrically distributed, two the inside of installation groove is fixedly installed with two conveying pipes, two the inside of installation groove is fixedly installed with metal sintered filter screen and is located above conveying pipe, two the inside of installation groove is fixedly installed with punch stainless steel perforated plate above metal sintered filter screen, all the side of conveying pipe close to shaftless screw conveyor is provided with air outlet, and the left and right two conveying pipes are fixedly connected with hot air pipe outside horizontal drying bin.

[0007] The utility model has the advantages that hot air pipe sends the hot air in the conveying pipe to the air outlet, and the hot air moves upward, so that the granules in the horizontal drying bin can be dried better, and the shaftless screw conveyor is suitable for sticky wet granules, which avoids the winding of materials at the shaft rod and reduces the drying rate of granules.

[0008] On the basis of the above technical scheme, the utility model can also be improved as follows.

[0009] Further, the number of the air outlet holes is several and uniformly distributed on the outer side of the four conveying pipes.

[0010] The above further scheme has the beneficial effect of accelerating the transmission speed of the hot air and improving the drying efficiency of the particles.

[0011] Further, the top of the horizontal drying bin is communicated with negative pressure pipes, the right side of the negative pressure pipes is communicated with a collecting pipe, and the right side of the collecting pipe is communicated with the left side of the cyclone separator.

[0012] The above further scheme has the beneficial effect that the moisture generated during the drying process can enter the cyclone separator and be recycled.

[0013] Further, the number of the negative pressure pipes is four, and they are uniformly distributed on the top of the horizontal drying bin, and the right side of the four negative pressure pipes is communicated with the inside of the collecting pipe.

[0014] The above further scheme has the beneficial effect of strengthening the dehumidification efficiency in the horizontal drying bin and ensuring the drying rate.

[0015] Further, the top of the cyclone separator is communicated with a condenser through a pipeline, and the water outlet and the gas outlet of the condenser are located on the right side.

[0016] The above further scheme has the beneficial effect of recycling the heat in the moisture and achieving the effect of utilizing energy. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a perspective structure schematic view of one of the utility model from the angle;

[0018] Figure 2 It is another perspective structure schematic view of the utility model from the angle;

[0019] Figure 3 It is a left view horizontal drying bin internal structure schematic view of the utility model;

[0020] Figure 4 It is a front view horizontal drying bin internal structure schematic view of the utility model;

[0021] Figure 5 It is a perspective structure schematic view of the utility model Figure Four It is an enlarged structure schematic view of A in the utility model;

[0022] Figure 6 It is a part conveying pipe, metal sintering filter screen and punched stainless steel porous plate split perspective structure schematic view of the utility model.

[0023] In the drawings, the component list represented by each number is as follows:

[0024] 1. Granulation box; 2. Horizontal drying chamber; 3. Rotary feed valve; 4. Shaftless screw conveyor; 5. Mounting trough; 6. Conveying pipe; 7. Sintered metal filter screen; 8. Perforated stainless steel perforated plate; 9. Air outlet; 10. Hot air pipe; 11. Negative pressure pipe; 12. Manifold; 13. Cyclone separator; 14. Condenser. Detailed Implementation

[0025] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0026] Example 1, as Figures 1-6 As shown, a granulator for dinotefuran water-dispersible granules includes a granulation box 1 and a horizontal drying chamber 2. The granulation box 1 is located at the top of the horizontal drying chamber 2, and the granulation box 1 and the horizontal drying chamber 2 are connected by a rotary feed valve 3. A shaftless screw conveyor 4 is rotatably installed inside the horizontal drying chamber 2. Two mounting slots 5 are opened inside the horizontal drying chamber 2 and are symmetrically distributed on the left and right sides. Two conveying pipes 6 are fixedly installed inside each of the two mounting slots 5. Metal sintered filter screens 7 are fixedly installed inside each of the two mounting slots 5 and are located above the conveying pipes 6. A perforated stainless steel perforated plate 8 is fixedly installed inside each of the two mounting slots 5 and is located above the metal sintered filter screens 7. All conveying pipes 6 have air outlets 9 on the side near the shaftless screw conveyor 4. The two conveying pipes on the left and right sides are fixedly connected to hot air pipes 10 located outside the horizontal drying chamber 2.

[0027] Hot air is first supplied to the conveying pipe 6 through the hot air pipe 10 and discharged through the air outlet 9 to preheat the interior of the horizontal drying chamber 2. The moist granules produced in the granulation box 1 enter the interior of the horizontal drying chamber 2 under the action of the rotary feed valve 3. The granules are conveyed by the shaftless screw conveyor 4. During the conveying process, the granules are dried by hot air from the bottom up. The pore size of the metal sintered filter screen 7 and the perforated stainless steel porous plate 8 are both smaller than the size of the granules, providing double protection for the conveying pipe 6 in the installation groove 5.

[0028] Example 2 is a further improvement based on Example 1, and its specific details are as follows: the number of air outlets 9 is several and they are evenly distributed on the outside of the four conveying pipes 6.

[0029] This configuration, with multiple air outlets 9, allows the particles to be better dried by hot air during the conveying process, thus improving the drying effect.

[0030] The embodiment 3 is a further improvement on the basis of the embodiment 1, and specifically as follows: the top of the horizontal drying bin 2 is communicated with negative pressure pipes 11, the right side of the negative pressure pipes 11 is communicated with a collecting pipe 12, and the right side of the collecting pipe 12 is communicated with the left side of a cyclone separator 13.

[0031] In this way, in the process of hot air drying, moisture is generated and enters the collecting pipe 12 under the action of the negative pressure pipes 11, and when the particles enter the inside of the horizontal drying bin 2, dust is generated due to collision and also enters the collecting pipe 12 under the action of the negative pressure pipes 11, and the cyclone separator 13 is used for processing, collecting the dust particles, and discharging the gas.

[0032] The embodiment 4 is a further improvement on the basis of the embodiment 3, and specifically as follows: the number of the negative pressure pipes 11 is four, and they are uniformly distributed on the top of the horizontal drying bin 2, and the right side of the four negative pressure pipes 11 is communicated with the inside of the collecting pipe 12.

[0033] In this way, the collection efficiency of the humid gas inside the horizontal drying bin 2 is accelerated, and the drying speed is improved.

[0034] The embodiment 5 is a further improvement on the basis of the embodiment 3, and specifically as follows: the top of the cyclone separator 13 is communicated with a condenser 14 through a pipeline, and the water outlet and the gas outlet of the condenser 14 are located on the right side.

[0035] In this way, the gas discharged from the cyclone separator 13 can be recycled through the condenser 14.

[0036] Although the embodiments of the utility model have been shown and described above, it can be understood that the above-mentioned embodiments are exemplary and cannot be understood as limiting the utility model, and the person skilled in the art can change, modify, replace and transform the above-mentioned embodiments within the scope of the utility model.

Claims

1. A special granulator for water dispersible granules of dinotefuran, comprising a granulation box (1) and a horizontal drying bin (2), characterized in that: The granulating box (1) is located at the top of the horizontal drying bin (2), the granulating box (1) is communicated with the horizontal drying bin (2) through the rotary feeding valve (3), the shaftless screw conveyor (4) is rotatably installed in the horizontal drying bin (2), the two installation grooves (5) which are left-right symmetrical are arranged in the horizontal drying bin (2), the two conveying pipes (6) are fixedly installed in the two installation grooves (5), the metal sintered filter screen (7) is fixedly installed in the two installation grooves (5) and above the conveying pipe (6), the punched stainless steel porous plate (8) is fixedly installed in the two installation grooves (5) and above the metal sintered filter screen (7), the air outlet (9) is arranged on the side of the conveying pipe (6) close to the shaftless screw conveyor (4), and the hot air pipe (10) which is communicated with the two conveying pipes (6) and located outside the horizontal drying bin (2) is arranged on the left and right sides.

2. The special granulator for water dispersible granules of dinotefuran according to claim 1, characterized in that: The number of the air outlet (9) is several and uniformly distributed on the outside of the four conveying pipes (6).

3. The special granulator for water dispersible granules of dinotefuran according to claim 1, characterized in that: The negative pressure pipe (11) is communicated with the top of the horizontal drying bin (2), the right side of the negative pressure pipe (11) is communicated with the flow collecting pipe (12), and the left side of the cyclone separator (13) is communicated with the flow collecting pipe (12).

4. The special granulator for water dispersible granules of dinotefuran according to claim 3, characterized in that: The number of the negative pressure pipe (11) is four, and they are uniformly distributed on the top of the horizontal drying bin (2), and the right sides of the four negative pressure pipes (11) are communicated with the inside of the flow collecting pipe (12).

5. The special granulator for water dispersible granules of dinotefuran according to claim 3, characterized in that: The top of the cyclone separator (13) is communicated with the condenser (14) through a pipeline, and the water outlet and the gas outlet of the condenser (14) are located on the right side.

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