Glyphosate ammonium salt soluble granule production dehydration device

Abstract

The utility model belongs to the agricultural product technical field, concretely relates to a glyphosate ammonium salt soluble granule production dehydration device, include: air blower and with the exhaust end of air blower between through hot -blast pipe intercommunication's linear vibrating screen classifier, linear vibrating screen classifier includes the closed box of top intercommunication feed inlet, and the upper sieve plate and lower sieve plate of parallel setting in closed box, the bottom interval of closed box is provided with at least one group and hot -blast pipe end intercommunication's hot -blast flow guide cage, still has one air heater of series intercommunication on hot -blast pipe, to make hot -blast flow guide cage blow -off hot blast in closed box to carry out drying to the material of screening, realize dehydration. The utility model through setting up hot -blast flow guide cage at the bottom of linear vibrating screen classifier and setting up cold -blast flow guide cage at its screening end, make the particle in vibrating screening can fully contact with the hot blast of hot -blast flow guide cage blowing, effectively improve drying efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of agricultural products technology, specifically relating to a dehydration device for the production of glyphosate ammonium salt soluble granules. Background Technology

[0002] Glyphosate is a highly effective, low-toxicity, broad-spectrum, systemic, non-selective herbicide. It works by structurally blocking the biosynthesis of aromatic amino acids in plants, leading to the death of weeds and crops, and is effective in controlling both annual and perennial weeds. Therefore, it has become the world's largest-selling herbicide, widely used in agriculture, forestry, orchards, tea plantations, rubber plantations, pasture regeneration, railways, airports, and other non-arable and no-till fields. Currently, glyphosate is mainly available in two formulations: aqueous solutions of glyphosate salts and water-soluble granules of glyphosate salts.

[0003] For water-soluble granules of glyphosate salts, the dehydration (drying) process is a critical step that determines the final product quality, energy consumption, and production costs. Granules produced by wet processing contain a high moisture content, typically between 10% and 25%, and must be dehydrated to reduce the moisture content to below 2% to meet product standards and ensure that they do not clump or deteriorate during storage.

[0004] Currently, the dehydration devices widely used in the industry are mainly box-type drying ovens / rooms: wet granules are spread flat on a tray and placed in a box-type equipment, and the material is statically dried by hot air circulation or heat transfer oil heating; because the material is static, the contact area between the hot air and the material is small, the heat and mass transfer efficiency is low, and the drying time is long.

[0005] In view of this, the present invention provides a dehydration device for the production of glyphosate ammonium salt soluble granules to meet the requirements. Utility Model Content

[0006] To achieve the above objectives, this utility model provides the following technical solution: a dehydration device for the production of glyphosate ammonium salt soluble granules, comprising: a blower, and a linear vibrating screen connected to the exhaust end of the blower via a hot air pipe; the linear vibrating screen includes a sealed box with a feed inlet at the top, an upper screen plate and a lower screen plate arranged side by side within the sealed box, and an upper screen outlet and a lower screen outlet corresponding to the screening ends of the upper screen plate and the lower screen plate, respectively;

[0007] At least one set of hot air guide hoods connected to the end of the hot air pipe are provided at intervals at the bottom of the sealed box. An air heater is also connected in series on the hot air pipe so that the hot air guide hoods blow hot air into the sealed box to dry the screened material and achieve dehydration.

[0008] As a preferred embodiment of the dehydration device for producing glyphosate ammonium salt soluble granules according to this utility model, the top of the sealed box is connected to a guide pipe, and the end of the guide pipe is connected to the air inlet of a cyclone separator.

[0009] In a preferred embodiment of the dehydration device for the production of glyphosate ammonium salt soluble granules according to this utility model, the exhaust end of the cyclone separator is connected to the inlet end of the bag filter through an exhaust pipe, and the exhaust end of the bag filter is connected to an induced draft fan.

[0010] As a preferred embodiment of the dehydration device for the production of glyphosate ammonium salt soluble granules according to this utility model, the bottom of the sealed box is also connected to at least one set of cold air guide hoods near the screening end of the linear vibrating screen.

[0011] A cold air duct is connected in parallel to the pipeline between the blower and the air heater, with one end connected to the cold air guide shroud, to blow away the material at the end of the screening process and achieve cooling and solidification.

[0012] In a preferred embodiment of the dehydration device for producing glyphosate ammonium salt soluble granules according to this utility model, the mesh size of the upper sieve plate is larger than that of the lower sieve plate.

[0013] In a preferred embodiment of the dehydration device for producing glyphosate ammonium salt soluble granules according to this utility model, the screen aperture of the lower sieve plate is at most 1.5 mm.

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

[0015] 1. This utility model sets up a double-layer sieve plate inside the linear vibrating screen, which can screen the size of the granulated particles, screen out large particles that do not meet the particle standard, ensure the uniformity of product size, and improve product quality.

[0016] 2. This utility model, by setting a hot air guide hood at the bottom of the linear vibrating screen and a cold air guide hood at its screening end, allows the particles to fully contact the hot air blown out by the hot air guide hood while vibrating and screening, thereby improving drying efficiency and accelerating dehydration; and at the screening end, the cold air blown by the cold air guide hood cools and solidifies the particles, preventing them from sticking together and clumping after being blown by the hot air, thus further improving product quality.

[0017] 3. This utility model connects a cyclone separator to the top of the linear vibrating screen and a bag filter to the exhaust end of the cyclone separator, so that the dust generated during screening can be filtered before being discharged to the outside, thereby reducing pollution and meeting environmental protection requirements. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the linear vibrating screen of this utility model.

[0021] In the diagram: 1. Blower; 11. Air filter; 2. Hot air duct; 21. Air heater; 22. Cold air duct; 23. Hot air guide hood; 24. Cold air guide hood; 3. Linear vibrating screen; 31. Feed inlet; 32. Upper screen plate; 33. Lower screen plate; 34. Upper screen discharge port; 35. Lower screen discharge port; 4. Guide pipe; 5. Cyclone separator; 6. Exhaust pipe; 7. Bag filter; 8. Exhaust fan. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example 1:

[0024] This utility model relates to a dehydration device for the production of glyphosate ammonium salt soluble granules, such as... Figures 1-2 As shown, it includes a blower 1 and a linear vibrating screen 3 connected to the exhaust end of the blower 1 via a hot air pipe 2.

[0025] Among them, such as Figure 2 As shown, the linear vibrating screen 3 includes a sealed box with a feed inlet 31 connected to the top, an upper screen plate 32 and a lower screen plate 33 arranged side by side inside the sealed box, and an upper screen outlet 34 and a lower screen outlet 35 corresponding to the screening ends of the upper screen plate 32 and the lower screen plate 33, respectively. A vibration motor is installed outside the sealed box of the linear vibrating screen 3. Its operation causes the entire sealed box of the linear vibrating screen 3 to vibrate, thereby achieving vibratory screening of the material. Under this vibration, the material entering the sealed box will jump along with the vibration. This is existing technology, and the specific principle will not be elaborated here. A hinged cover can be attached to the feed inlet 31 to close the feed inlet 31.

[0026] An air filter 11 is installed at the air inlet of blower 1 to reduce dust entry and prevent dust in the air from entering the sealed chamber and contaminating the screened material. An air heater 21 is connected in series on the hot air pipe 2. The air heater 21 has an electric heating tube inside its cavity. The air introduced into the hot air pipe 2 by blower 1 is heated by the air heater 21 and then enters the bottom of the sealed chamber of the linear vibrating screen 3. Due to the principle of hot air rising, the hot air rises from the bottom of the sealed chamber, passes through the upper screen plate 32 and the lower screen plate 33, and makes full contact with the vibrating material to quickly dry it. Larger granules that do not meet the requirements are screened on the upper screen plate 32 and discharged from the upper screen outlet 34, while standard granules that meet the requirements are screened on the lower screen plate 33 and discharged from the lower screen outlet 35 for use. It should be noted that the standard particle size requirement is between 0.3mm and 1.5mm. Therefore, the mesh size of the lower sieve plate 33 should be less than 0.3mm, while the mesh size of the upper sieve plate 32 should be greater than 1.5mm.

[0027] Furthermore, at least one set of hot air guide hoods 23 connected to the end of the hot air pipe 2 are provided at intervals at the bottom of the sealed box; the top opening of the hot air guide hood 23 is funnel-shaped to facilitate the diffusion of hot air and improve the uniformity of heat in the sealed box.

[0028] In another preferred embodiment, at least one set of cold air guide hoods 24 near the screening end of the linear vibrating screen 3 is also connected to the bottom of the sealed box. The cold air guide hoods 24 have the same structure as the hot air guide hoods 23. A cold air pipe 22 with its end connected to the cold air guide hoods 24 is connected in parallel on the pipeline between the blower 1 and the air heater 21. When the blower 1 introduces air, it will be split. Part of the air enters the hot air pipe 2 and is heated by the air heater 21 before entering the bottom of the sealed box and being diffused and blown out by the hot air guide hoods 23. The other part of the air enters the cold air pipe 22 and enters the bottom of the sealed box, where it is diffused and blown out by the cold air guide hoods 24 near the screening end. This is to cool and solidify the dried material, prevent it from sticking and clumping, and improve product quality.

[0029] Taking the production of glyphosate ammonium salt soluble granules as an example, a brief explanation is provided: During use, the pre-granulated glyphosate ammonium salt soluble granules are poured into a sealed chamber through inlet 31. While being sieved by the upper sieve plate 32 and the lower sieve plate 33, they are simultaneously dried by hot air. At the end of the sieve process (i.e., near the discharge end), they are solidified by cold air to prevent clumping. Finally, unqualified granules and compliant granules are discharged from their respective upper sieve outlet 34 and lower sieve outlet 35 for subsequent processing according to granule standards. For example, compliant granules are bagged and packaged, while unqualified granules are crushed, re-granulated, and dried.

[0030] Example 2:

[0031] Based on the above embodiment 1, since the linear vibrating screen 3 generates a certain amount of dust during screening (dust falling off the granules or dust residue in the granulator enters the sealed box along with the granules), direct discharge would cause environmental pollution and fail to meet environmental protection requirements. Therefore, in this embodiment, a cyclone separator 5 is further provided.

[0032] Specifically, such as Figure 1 As shown, a guide pipe 4 is connected to the top of the sealed box, and the end of the guide pipe 4 is connected to the air inlet of the cyclone separator 5. Dust accompanied by hot air enters the cyclone separator 5 through the guide pipe 4. After being partially separated in the cyclone separator 5, the dust falls into the cavity of the cyclone separator 5, while the relatively clean air after separation is discharged to the outside from the exhaust end of the cyclone separator 5 to reduce environmental pollution.

[0033] Furthermore, in order to further reduce pollution and prevent the cyclone separator 5 from failing to effectively separate dust completely, the exhaust end of the cyclone separator 5 is connected to the air inlet end of the bag filter 7 through the exhaust pipe 6, and an induced draft fan 8 is connected to the exhaust end of the bag filter 7 to draw out the filtered air, thereby achieving "zero" emissions to the outside world and meeting environmental protection requirements.

[0034] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A dehydration device for the production of glyphosate ammonium salt soluble granules, characterized in that, include: A blower (1) and a linear vibrating screen (3) connected to the exhaust end of the blower (1) via a hot air pipe (2); the linear vibrating screen (3) includes a sealed box with a feed inlet (31) at the top, an upper screen plate (32) and a lower screen plate (33) arranged side by side in the sealed box, and an upper screen outlet (34) and a lower screen outlet (35) corresponding to the screening ends of the upper screen plate (32) and the lower screen plate (33) respectively. An air heater (21) is also connected in series on the hot air pipe (2) so that the hot air guide hood (23) blows hot air into the sealed box to dry the screened material and achieve dehydration.

2. The dehydration device for producing glyphosate ammonium salt soluble granules according to claim 1, characterized in that: The top of the sealed box is connected to a guide pipe (4), and the end of the guide pipe (4) is connected to the air inlet of the cyclone separator (5).

3. The dehydration device for producing glyphosate ammonium salt soluble granules according to claim 2, characterized in that: The exhaust end of the cyclone separator (5) is connected to the inlet end of the bag filter (7) through the exhaust pipe (6), and the exhaust end of the bag filter (7) is connected to the induced draft fan (8).

4. The dehydration device for producing glyphosate ammonium salt soluble granules according to claim 1, characterized in that: The bottom of the sealed box is also connected to at least one set of cold air guide hoods (24) near the screening end of the linear vibrating screen (3). A cold air pipe (22) with its end connected to a cold air guide shroud (24) is connected in parallel on the pipeline between the blower (1) and the air heater (21) to blow away the material at the end of the screening and achieve cooling and solidification.

5. The dehydration apparatus for producing glyphosate ammonium salt soluble granules according to any one of claims 1-4, characterized in that: The mesh size of the upper sieve plate (32) is larger than that of the lower sieve plate (33).

6. The dehydration apparatus for producing glyphosate ammonium salt soluble granules according to claim 5, characterized in that: The mesh size of the lower sieve plate (33) is less than 0.3 mm; the mesh size of the upper sieve plate (32) is greater than 1.5 mm.

Images