Continuous hot air drying winnowing equipment for compound fertilizer production

Abstract

The utility model discloses a continuous hot air drying winnowing device for compound fertilizer production, which comprises a device main body, the top of the device main body is provided with a particle selection raw material inlet and a fine particle discharge pipe, the side wall of the device main body is provided with a fine particle discharge pipe and a finished product discharge pipe lower than the fine particle discharge pipe, and the bottom of the device main body is provided with a hot air pipeline and a coarse particle discharge pipe; the cyclone separator is arranged at the tail end of the fine particle discharging pipe and is used for separating and discharging fine particles; and the cloth bag filtering opening is connected with the cyclone separator through a pipeline and is used for filtering and recovering particle dust which is not discharged from the cyclone separator. By means of upward flowing of hot air, fertilizer particles with different particle sizes can be graded, and the graded fertilizer particles with different particle sizes can be fed into different pipelines to be recycled by matching with different height positions of the discharging pipes. And hot air can be used for continuously drying fertilizer granule selection raw materials, the granule screening and winnowing effects can be synchronously achieved through the hot air, and use is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of fertilizer granulation raw material processing, in particular to hot air drying and air selection equipment for continuous compound fertilizer production. Background Art

[0002] The production process of compound fertilizer has high quality requirements for raw materials. Generally, nitrogen, phosphorus, potassium and trace elements are accurately proportioned according to the nutritional needs of crops to achieve nutrient balance, and the raw materials are mixed to ensure uniform distribution of nutrients. At the same time, in the production process of fertilizer, the fertilizer is usually screened after granulation. Particles larger than the standard or smaller than the standard are removed and recycled for secondary processing. Only the remaining standard particles can be used.

[0003] However, in the production process, due to incomplete cooling, stickiness often occurs during the screening process, and even condensation occurs due to incomplete drying, resulting in the final product being agglomerated, containing many impurities, and having unstable fertilizer effects.

[0004] To this end, the present application specifically proposes a hot air drying and air separation equipment for continuous compound fertilizer production to solve the above-mentioned technical problems, and the above-mentioned content is only used to assist in understanding the technical solution of the present application, and does not represent an admission that the above-mentioned content is the closest prior art. Utility Model Content

[0005] The main purpose of the utility model is to provide a hot air drying and air selection equipment for continuous compound fertilizer production, which can use hot air to continuously dry fertilizer granulation raw materials and achieve sieving and air selection effects synchronously through hot air.

[0006] In order to solve the above technical problems, the utility model provides a hot air drying and air separation equipment for continuous compound fertilizer production, comprising:

[0007] The main body of the device is provided with a feed inlet for raw materials for particle selection and a discharge pipe for fine particles on the top, a discharge pipe for micro particles and a discharge pipe for finished products whose height is lower than the discharge pipe for micro particles on the side wall, and a hot air duct and a discharge pipe for coarse particles on the bottom;

[0008] A cyclone separator is arranged at the end of the fine particle discharge pipe to separate and discharge fine particles;

[0009] The bag filter port is connected to the cyclone separator through a pipeline and is used to filter and recover the dust particles that are not discharged from the cyclone separator.

[0010] Furthermore, it also includes a dispersing component arranged inside the device body, and the dispersing component is arranged below the feed inlet of the selected grain raw material, and is used for dispersing the selected grain raw material after entering the device body.

[0011] Furthermore, the dispersion component is configured as a conical block, and the conical block is mounted and fixed inside the device body via a connecting bracket.

[0012] Furthermore, at least one group of hot air ducts is provided, and one end of each of the hot air ducts is aligned with the central vertical axis of the device body, so as to avoid eddy currents inside the device body.

[0013] Furthermore, a hot air distribution plate is provided at the bottom of the main body of the device, and a plurality of evenly distributed sieve holes are provided through the upper and lower parts of the hot air distribution plate to control the evenly distributed upward flow of the hot air at the bottom.

[0014] Furthermore, it also includes a lifting and adjusting structure for installing a micro-particle discharge pipe and a finished product discharge pipe, and the lifting and adjusting structure is composed of a lifting plate assembly and a lifting control assembly:

[0015] The micro-particle discharge pipe and the finished product discharge pipe are arranged on the lifting plate assembly, and the lifting plate assembly is limitedly slid on the side wall of the device body along the vertical direction;

[0016] The lifting control assembly is used to control the sliding movement or positioning of the lifting plate assembly in the vertical direction.

[0017] Furthermore, the lifting plate assembly includes a sliding groove opened on the side wall of the device body, a connecting sliding block sliding in the vertical direction on the inner side of the sliding groove, a limiting plate connected to the connecting sliding block and slidingly fitting on the inner side of the device body, and a sliding connecting plate connected to the connecting sliding block and slidingly fitting on the outer side of the device body, the micro-particle discharge pipe and the finished product discharge pipe pass through the connecting limiting plate, the connecting sliding block and the sliding connecting plate, and the sliding connecting plate always blocks the sliding groove when the sliding connecting plate is in a moving state.

[0018] Furthermore, the lifting control assembly includes a threaded connection block installed on the sliding connection plate, a limit connection block located on the outer wall of the device body, and a screw rotatably arranged on the limit connection block, and the screw thread rotates on the threaded connection block.

[0019] Furthermore, two sets of limiting rings are arranged on the screw rod, and the limiting rings are respectively fitted and rotated on the upper and lower surfaces of the limiting connecting block.

[0020] Furthermore, a rotating handle is provided at one end of the screw rod.

[0021] The beneficial effects of the utility model are embodied in:

[0022] 1. The utility model utilizes the upward flow of hot air to classify fertilizer particles of different sizes, and with the different height positions of the discharge pipe, compound fertilizers with different required particle sizes can be obtained, and fertilizer particles of different particle sizes can be sent to different pipes for recycling. It can not only use hot air to continuously dry fertilizer granulation raw materials, but also can achieve the grading and air selection effect through hot air simultaneously. While reducing energy consumption and improving the drying and granulation effect of fertilizer granulation raw materials, it can also facilitate the continuous and continuous processing operation of fertilizer granulation raw materials, and is easy to use.

[0023] 2. Before the particle selection raw materials are put into the main body of the device, there is still a small amount of dust inside them. Therefore, the utility model can effectively and accurately recover the fertilizer particles with smaller particle sizes and the mixed dust by connecting the cyclone separator and the bag filter port in sequence at the end of the fine particle discharge pipe, so as to facilitate the secondary processing of the dust and be green and environmentally friendly.

[0024] 3. The utility model sets a hot air distribution plate at the bottom of the device body. Since the hot air flow of a group of hot air ducts or the hot air introduced into at least two groups of hot air ducts collides and flows at the bottom of the device body, the evenly distributed sieve holes can ensure that the upward hot air flow can be evenly blown upward in the device body, thereby ensuring the sufficient drying and screening effect of the fertilizer particles inside the device body and improving the drying and screening quality of the device.

[0025] 4. The utility model sets a lifting adjustment structure and utilizes the lifting control component to lift and move the lifting plate component, so as to further control the height lifting of the micro-particle discharge pipe and the finished product discharge pipe, thereby facilitating the classification of fertilizer particles of different particle sizes into the micro-particle discharge pipe and the finished product discharge pipe, and conveniently obtains the required particle size by adjusting the height, which is convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The drawings constituting part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0027] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0028] Figure 2 It is a cross-sectional perspective schematic diagram of the main structure of the device of the utility model;

[0029] Figure 3 It is a cross-sectional stereoscopic schematic diagram of the lifting and lowering adjustment structure of the utility model.

[0030] In the figure:

[0031] 1. Device body; 2. Cyclone separator; 3. Bag filter port;

[0032] 11. Inlet for raw material selection; 12. Dispersion component; 121. Conical block; 122. Connecting bracket; 13. Hot air duct; 14. Hot air equalizing plate; 141. Sieve hole; 15. Discharge pipe for micro particles; 16. Discharge pipe for finished products; 17. Lifting and adjusting structure; 171. Lifting plate component; 1711. Limiting plate; 1712. Sliding notch; 1713. Sliding connecting plate; 1714. Connecting sliding block; 172. Lifting control component; 1721. Threaded connecting block; 1722. Limiting connecting block; 1723. Screw; 1724. Limiting ring; 1725. Turning handle; 18. Discharge pipe for fine particles; 19. Discharge pipe for coarse particles. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. In the absence of conflict, the embodiments in this application and the features in the embodiments can be combined with each other. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0034] In the embodiment, see Figures 1 to 3 .

[0035] like Figure 1 As shown, the utility model provides a hot air drying and air separation equipment for continuous compound fertilizer production, comprising:

[0036] The main body 1 of the device is provided with a material inlet 11 for selecting particles and a fine particle outlet 12 at the top. Figure 1 As shown, the utility model provides a hot air drying and air separation equipment for continuous compound fertilizer production, comprising:

[0037] The device body 1 is provided with a raw material inlet 11 and a fine particle discharge pipe 18 at the top, a micro particle discharge pipe 15 and a finished product discharge pipe 16 whose height is lower than the micro particle discharge pipe 15 are provided on the side wall, and a hot air duct 13 and a coarse particle discharge pipe 19 are provided at the bottom;

[0038] A cyclone separator 2, arranged at the end of the fine particle discharge pipe 18, is used to separate and discharge fine particles;

[0039] The bag filter port 3 is connected to the cyclone separator 2 through a pipeline, and is used for filtering and recovering the dust particles that are not discharged from the cyclone separator 2.

[0040] Specifically, by arranging a hot air duct 13 at the bottom and utilizing the upward flow of hot air, fertilizer particles of different sizes can be screened, and by utilizing the different height positions of the micro-particle discharge pipe 15, the finished product discharge pipe 16, the fine particle discharge pipe 18 and the coarse particle discharge pipe 19, the fertilizer particles of different sizes after screening can be sent to different pipes for recycling and use, which can not only use hot air to continuously dry the fertilizer granulation raw materials but also achieve the sieving and winnowing effect through hot air simultaneously, while reducing energy consumption and improving the drying and granulation effect of the fertilizer granulation raw materials, it can also facilitate the continuous and continuous processing operation of the fertilizer granulation raw materials, and is convenient to use.

[0041] It should be noted that the cyclone separator 2 and the bag filter port 3 mentioned above both use the commonly used structure in the prior art, so their specific connection structure and working principle are not described in detail here.

[0042] It should also be noted that before the particle selection raw material is put into the device body 1, it is mixed with a small amount of particulate dust. Therefore, the device can effectively and accurately recover fertilizer particles with smaller particle sizes and effectively recover mixed particulate dust by connecting a cyclone separator and a bag filter port 3 in sequence at the end of the fine particle discharge pipe 18, thereby facilitating the secondary processing of the dust and being green and environmentally friendly.

[0043] In addition, it can be explained that in the specific implementation of the device structure, the diameters of the micro-particle discharge pipe 15 and the finished product discharge pipe 16 are both set to φ300, and the particle size of the finished fertilizer particles is generally 2 mm to 5 mm.

[0044] Furthermore, it also includes a dispersing component 12 arranged inside the device body 1. The dispersing component 12 is arranged below the particle selection raw material inlet 11 and is used for dispersing the particle selection raw material after entering the device body 1.

[0045] Specifically, the dispersion component 12 is configured as a conical block 121 , the conical head of the conical block 121 is always aligned with the particle selection raw material inlet 11 , and the conical block 121 is installed and fixed in the device body 1 through a connecting bracket 122 .

[0046] In addition, it should be noted that at least one group of hot air ducts 13 is provided, and one end of the hot air ducts 13 is aligned with the central vertical axis of the device body 1 to avoid eddy currents inside the device body 1 .

[0047] The temperature of the hot air in the hot air duct 13 is adjustable, generally ranging from 110°C to 120°C.

[0048] In a specific embodiment, reference Figure 2A hot air distribution plate 14 is provided at the bottom of the device body 1, and a plurality of evenly distributed sieve holes 141 are opened through the hot air distribution plate 14 from top to bottom to control the even distribution of the hot air at the bottom to flow upward, and the aperture size of the sieve holes 141 generally varies between 5 mm and 10 mm.

[0049] Specifically, by arranging a hot air equalizing plate 14 at the bottom of the device body 1, the hot air flow of a group of hot air ducts 13 or the hot air introduced into at least two groups of hot air ducts 13 collides and flows at the bottom of the device body 1, and the evenly distributed sieve holes 141 can ensure that the upward hot air flow can be evenly blown upward in the device body 1, thereby ensuring the sufficient drying and grading effect of the fertilizer particles inside the device body 1, and improving the drying and grading quality of the device.

[0050] It should be noted that a blocking hinged baffle or a one-way valve structure may be appropriately provided inside the particle selection raw material inlet 11 to prevent fine particles from flowing out of the particle selection raw material inlet 11 when hot air blows upward.

[0051] In a specific embodiment, reference Figure 2 and Figure 3 The device also includes a lifting and adjusting structure 17 for installing a micro-particle discharge pipe 15 and a finished product discharge pipe 16. The lifting and adjusting structure 17 is composed of a lifting plate assembly 171 and a lifting control assembly 172, wherein:

[0052] The micro-particle discharge pipe 15 and the finished product discharge pipe 16 are arranged on the lifting plate assembly 171, and the lifting plate assembly 171 is limitedly slidable on the side wall of the device body 1 along the vertical direction;

[0053] The lifting control assembly 172 is used to control the lifting plate assembly 171 to slide or position in the vertical direction.

[0054] Meanwhile, during the specific adjustment process, the lifting plate assembly 171 generally controls the distance between the micro-particle discharge pipe 15 and the finished product discharge pipe 16 and the hot air distribution plate 14 to vary between 500 mm and 800 mm.

[0055] Therefore, by setting up the lifting adjustment structure 17 and utilizing the lifting control component 172 to lift the lifting plate component 171, it is possible to further control the height lifting of the micro-particle discharge pipe 15 and the finished product discharge pipe 16, thereby facilitating the classification of fertilizer particles of different particle sizes into the micro-particle discharge pipe 15 and the finished product discharge pipe 16, and conveniently obtaining the required particle size by adjusting the height, which is convenient for use.

[0056] Furthermore, the lifting plate assembly 171 includes a sliding slot 1712 provided on the side wall of the device body 1, a connecting sliding block 1714 sliding in the vertical direction on the inner side of the sliding slot 1712, a limiting plate 1711 connected to the connecting sliding block 1714 and slidingly ...

[0057] The micro-particle discharge pipe 15 and the finished product discharge pipe 16 penetrate and connect the limiting plate 1711 , the connecting sliding block 1714 and the sliding connecting plate 1713 .

[0058] Specifically, the lifting control assembly 172 further controls the lifting and lowering movement of the lifting plate assembly 171 through the sliding connection plate 1713 , and the sliding connection plate 1713 always blocks the sliding slot 1712 in the moving state during the lifting and lowering process of the lifting plate assembly 171 .

[0059] Furthermore, the lifting control assembly 172 includes a threaded connection block 1721 installed on the sliding connection plate 1713, a limiting connection block 1722 located on the outer wall of the device body 1, and a screw 1723 rotatably arranged on the limiting connection block 1722, and the screw 1723 is threadedly rotated on the threaded connection block 1721.

[0060] Specifically, when the screw 1723 rotates, the screw 1723 is limited to rotate on the limit connection block 1722. At this time, the threaded rotation can drive the threaded connection block 1721 to drive the sliding connection plate 1713 to move up and down, thereby completing the height lifting of the micro-particle discharge pipe 15 and the finished product discharge pipe 16.

[0061] At this point, it can be further explained that two sets of limiting rings 1724 are provided on the screw rod 1723, and the limiting rings 1724 are respectively fitted and rotated on the upper and lower surfaces of the limiting connecting block 1722, so that during the rotation of the screw rod 1723, the position of the screw rod 1723 can be ensured to be relatively stationary with respect to the limiting connecting block 1722.

[0062] It can be further explained at this point that a rotating handle 1725 can also be provided at one end of the screw 1723 to facilitate manual control of the rotation of the screw 1723. In addition, the rotating handle 1725 can also be replaced by an electric drive structure such as a motor or other existing drive structure for controlling the rotation of the screw 1723.

[0063] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

[0064] In addition, it should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0065] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or schemes that A and B meet at the same time. In addition, in the embodiments of the utility model, "multiple" refers to more than two. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

Claims

1. A hot air drying and air separation equipment for continuous compound fertilizer production, characterized in that: include: The device body (1) is provided with a particle selection raw material inlet (11) and a fine particle discharge pipe (18) on the top, a micro particle discharge pipe (15) and a finished product discharge pipe (16) whose height is lower than the micro particle discharge pipe (15) on the side wall, and a hot air duct (13) and a coarse particle discharge pipe (19) on the bottom; A cyclone separator (2) is arranged at the end of the fine particle discharge pipe (18) and is used to separate and discharge the fine particles; The bag filter port (3) is connected to the cyclone separator (2) through a pipeline and is used to filter and recover dust particles that are not discharged from the cyclone separator (2).

2. The hot air drying and air separation equipment for continuous compound fertilizer production according to claim 1, characterized in that: It also comprises a dispersion component (12) arranged inside the device body (1), wherein the dispersion component (12) is arranged below the particle selection raw material inlet (11) and is used for dispersing the particle selection raw material after it enters the device body (1).

3. The hot air drying and air separation equipment for continuous compound fertilizer production according to claim 2, characterized in that: The dispersion component (12) is configured as a conical block (121), and the conical block (121) is installed and fixed inside the device body (1) via a connecting bracket (122).

4. The hot air drying and air separation equipment for continuous compound fertilizer production according to claim 1, characterized in that: At least one group of hot air ducts (13) is provided, and one end of each of the hot air ducts (13) is aligned with the central vertical axis of the device body (1), so as to avoid eddy currents from occurring inside the device body (1).

5. The hot air drying and air separation equipment for continuous compound fertilizer production according to claim 1, characterized in that: A hot air distribution plate (14) is provided at the bottom of the device body (1), and the hot air distribution plate (14) is provided with a plurality of evenly distributed sieve holes (141) extending from top to bottom, so as to control the even distribution and upward flow of the hot air at the bottom.

6. The hot air drying and air separation equipment for continuous compound fertilizer production according to claim 1, characterized in that: It also includes a lifting and adjusting structure (17) for installing a micro-particle discharge pipe (15) and a finished product discharge pipe (16), wherein the lifting and adjusting structure (17) is composed of a lifting plate assembly (171) and a lifting control assembly (172): The micro-particle discharge pipe (15) and the finished product discharge pipe (16) are arranged on a lifting plate assembly (171), and the lifting plate assembly (171) is limitedly slidable along a vertical direction on a side wall of the device body (1); The lifting control assembly (172) is used to control the sliding movement or positioning of the lifting plate assembly (171) in the vertical direction.

7. The hot air drying and air separation equipment for continuous compound fertilizer production according to claim 6, characterized in that: The lifting plate assembly (171) comprises a sliding notch (1712) provided on the side wall of the device body (1), a connecting sliding block (1714) sliding along the vertical direction inside the sliding notch (1712), a limiting plate (1711) connected to the connecting sliding block (1714) and slidingly fitting inside the device body (1), and a sliding connecting plate (1713) connected to the connecting sliding block (1714) and slidingly fitting outside the device body (1); The micro-particle discharge pipe (15) and the finished product discharge pipe (16) penetrate the connection limit plate (1711), the connection sliding block (1714) and the sliding connection plate (1713), and the sliding connection plate (1713) always blocks the sliding slot (1712) when in motion.

8. The hot air drying and air separation equipment for continuous compound fertilizer production according to claim 7, characterized in that: The lifting control assembly (172) comprises a threaded connection block (1721) mounted on the sliding connection plate (1713), a limit connection block (1722) located on the outer wall of the device body (1), and a screw rod (1723) rotatably arranged on the limit connection block (1722), wherein the screw rod (1723) is threadedly rotated on the threaded connection block (1721).

9. The hot air drying and air separation equipment for continuous compound fertilizer production according to claim 8, characterized in that: Two sets of limiting rings (1724) are arranged on the screw rod (1723), and the limiting rings (1724) are respectively fitted and rotated on the upper and lower surfaces of the limiting connection block (1722).

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