A negative pressure dust removal device for processing water-soluble fertilizer powder

Abstract

The utility model discloses a kind of negative pressure dust removal devices for powder water-soluble fertilizer processing, it is related to raw material processing technical field, including negative pressure machine main body, the side upper of negative pressure machine main body is fixedly installed with first fan, the bottom of negative pressure machine main body is fixedly installed with support leg, the bottom of negative pressure machine main body is fixedly installed with negative pressure pipe, the bottom of negative pressure pipe is fixedly installed with standpipe, the bottom of negative pressure machine main body is provided with the negative pressure matched assembly of matched powder water-soluble fertilizer processing equipment dust generation mouth adaptation, the utility model is combined to form annular negative pressure mouth by negative pressure extension pipe and negative pressure matched pipe in negative pressure matched assembly, match electric push rod drive to realize lateral telescopic adjustment, in combination with drive motor drives screw rotation, the height adjustment of negative pressure matched assembly of directional negative pressure matched pipe end portion arc groove optimization air flow direction, break unilateral adsorption mouth covering limit, eliminate adsorption blind area, substantially reduce dust escape rate, improve dust removal effect.

Description

Technical Field

[0001] This utility model relates to the field of raw material processing technology, and in particular to a negative pressure dust removal device for processing powdered water-soluble fertilizers. Background Technology

[0002] In the processing of powdered water-soluble fertilizers, dust is dispersed in a three-dimensional manner during crushing, screening, and packaging. When the crushing unit is running, the dust will drift to the sides and top of the equipment. However, the single-sided adsorption port can only form a local negative pressure on one side of the device, while the other side and the top of the equipment will form an adsorption blind zone. Especially when the width of the equipment exceeds a certain size, the suction force of the single-sided negative pressure will decrease with distance, and the dust flow velocity on the other side will be far below the adsorption threshold. In the end, a large part of the dust will remain on the other side of the adsorption port and cannot be effectively captured. This residual dust will directly cause multiple problems. First, it will cause the dust concentration in the workshop to exceed the standard, increasing the risk of pneumoconiosis for employees. Second, the residual dust is easy to adhere to the surface of the equipment, causing the screen of the screening machine to be blocked and the packaging machine to jam.

[0003] Therefore, it is necessary to invent a negative pressure dust removal device for the processing of powdered water-soluble fertilizers to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a negative pressure dust removal device for processing powdered water-soluble fertilizers, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a negative pressure dust removal device for processing powdered water-soluble fertilizer, comprising a negative pressure machine body, a first fan fixedly installed on the upper side of one side of the negative pressure machine body, a support leg fixedly installed at the bottom of the negative pressure machine body, a negative pressure pipe fixedly installed at the bottom of the negative pressure pipe, a vertical pipe fixedly installed at the bottom of the negative pressure pipe, and a negative pressure matching component adapted to the dust generation port of the powdered water-soluble fertilizer processing equipment provided at the bottom of the negative pressure machine body, the negative pressure matching component including a connecting pipe inserted into the vertical pipe, negative pressure extension pipes symmetrically inserted into the middle of the bottom ends of the connecting pipe, negative pressure matching pipes symmetrically inserted into the sides of the bottom ends of the two connecting pipes, and arc-shaped grooves for guiding flow symmetrically opened at the ends of the two negative pressure matching pipes, the negative pressure extension pipes and the negative pressure matching pipes combined to form an annular negative pressure port for adsorbing dust.

[0006] Preferably, first fixing blocks are symmetrically fixedly installed above both ends of the connecting pipe, and a first electric push rod is fixedly installed at one end of each of the two first fixing blocks. The telescopic ends of the two first electric push rods are fixedly connected to a first mounting block that is fixedly connected to the top of the negative pressure extension pipe.

[0007] Preferably, a second fixing block is symmetrically fixedly connected to one side of the connecting pipe, a second electric push rod is fixedly installed at one end of the two second fixing blocks, and a second mounting block is fixedly connected to the telescopic end of the second electric push rod and fixedly connected to the side of the negative pressure matching pipe.

[0008] Preferably, the connecting pipe has symmetrically opened guide holes on both sides of its interior that communicate with the internal cavity of the negative pressure matching pipe.

[0009] Preferably, an inclined plate for airflow guidance is symmetrically fixedly installed in the middle of the connecting pipe on one side of the guide hole. The two inclined plates and the connecting pipe are combined to form a rectangular groove. Heat pipes for auxiliary heating of the connecting pipe are symmetrically fixedly installed on both sides of the connecting pipe.

[0010] Preferably, a first support block is symmetrically fixedly connected to both sides of the vertical pipe. One of the first support blocks movably passes through a limiting rod, and the other end of the limiting rod movably passes through a second support block fixedly connected to the connecting pipe. The other end of the first support block movably passes through a screw rod, and the other end of the screw rod is threadedly connected to the second support block. A drive motor is fixedly installed at the bottom of the second support block, and the output end of the drive motor passes through the second support block and is fixedly connected to the screw rod.

[0011] Preferably, a right-angle plate is fixedly connected to the bottom of the connecting pipe, and a second fan is fixedly installed on the top of the right-angle plate. The output end of the second fan is connected to the middle of the bottom of the connecting pipe through a pipe. A filter screen is fixedly installed inside the connecting pipe, located between two inclined plates and above the output end of the second fan.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: The negative pressure system utilizes a combination of a negative pressure extension tube and a negative pressure supporting tube to form an annular negative pressure port. This port, driven by a first and second electric push rod, allows for lateral telescopic adjustment. Combined with a drive motor rotating a screw and a limit rod directional adjustment for height adjustment, and further enhanced by the dual power of the first fan's base negative pressure and the second fan's reinforced negative pressure, along with an arc-shaped groove at the end of the negative pressure supporting tube optimizing airflow direction, the system overcomes the limitations of single-sided adsorption port coverage, eliminates adsorption blind spots, significantly reduces dust escape rate, and improves dust removal efficiency. Furthermore, heat pipes on both sides of the connecting pipe heat the airflow to reduce humidity and prevent dust agglomeration. Internal inclined plates regulate the airflow path to prevent dust retention, solving problems of dust agglomeration, blockage, and poor transport. This ensures the continuous and stable operation of the negative pressure dust removal system, reduces production line downtime, and improves the process stability and production efficiency of powdered water-soluble fertilizer processing. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0014] Figure 2 This is a schematic diagram of the negative pressure supporting components of this utility model.

[0015] Figure 3 This is a cross-sectional structural diagram of the negative pressure supporting component of this utility model.

[0016] Figure 4 This is a schematic diagram of the inclined plate and filter screen of this utility model.

[0017] In the diagram: 1. Main body of the negative pressure unit; 2. First fan; 3. Support leg; 4. Negative pressure pipe; 401. Vertical pipe; 5. Negative pressure supporting components; 501. Connecting pipe; 5010. Guide hole; 5011. Inclined plate; 5012. Heat pipe; 502. First fixing block; 503. First electric push rod; 504. First mounting block; 505. Negative pressure extension pipe; 506. Second fixing block; 507. Second electric push rod; 508. Second mounting block; 509. Negative pressure supporting pipe; 5090. Arc groove; 6. First support block; 7. Limiting rod; 8. Second support block; 9. Screw; 10. Drive motor; 11. Right angle plate; 12. Second fan; 13. Filter screen. Detailed Implementation

[0018] 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.

[0019] This utility model provides, for example Figure 1 - Figure 4 The negative pressure dust removal device shown includes a negative pressure machine body 1, a first fan 2 fixedly installed on the upper side of one side of the negative pressure machine body 1, a support leg 3 fixedly installed at the bottom of the negative pressure machine body 1, a negative pressure pipe 4 fixedly installed at the bottom end of the negative pressure machine body 1, a vertical pipe 401 fixedly installed at the bottom of the negative pressure pipe 4, and a negative pressure matching component 5 adapted to the dust generation port of the powder water-soluble fertilizer processing equipment at the bottom of the negative pressure machine body 1. The negative pressure matching component 5 includes a connecting pipe 501 inserted into the vertical pipe 401, a negative pressure extension pipe 505 symmetrically inserted into the middle of the bottom ends of the connecting pipe 501, and negative pressure matching pipes 509 symmetrically inserted into the sides of the bottom ends of the two connecting pipes 501. The ends of the two negative pressure matching pipes 509 are symmetrically provided with arc-shaped grooves 5090 for guiding flow. The negative pressure extension pipe 505 and the negative pressure matching pipe 509 are combined to form an annular negative pressure port for adsorbing dust.

[0020] The main body 1 of the negative pressure unit serves as the core load-bearing structure, providing the installation foundation for components such as the first fan 2, support legs 3, and negative pressure pipe 4, ensuring the stable operation of the overall equipment. The first fan 2 generates negative pressure to provide a power source for dust adsorption, driving airflow to carry dust into the equipment. The negative pressure pipe 4, in conjunction with the vertical pipe 401, forms the initial channel for dust to enter the main body 1 of the negative pressure unit, achieving initial guidance of the dust. The negative pressure supporting component 5 connects to the vertical pipe 401 through the connecting pipe 501, and together with the negative pressure extension pipe 505 and the negative pressure supporting pipe 509, forms an annular negative pressure port, expanding the dust adsorption range and adapting to the dust generation port of the powder water-soluble fertilizer processing equipment, reducing dust escape. The arc-shaped groove 5090 at the end of the negative pressure supporting pipe 509 plays a guiding role, optimizing the airflow direction and improving the efficiency of dust entering the negative pressure supporting pipe 509. Compared with single-sided or partial negative pressure ports, the annular negative pressure port can achieve multi-directional adsorption, improving the dust capture rate in the powder water-soluble fertilizer processing process.

[0021] First fixing blocks 502 are symmetrically fixedly installed above both ends of the connecting pipe 501. First electric push rods 503 are fixedly installed at one end of each of the two first fixing blocks 502. The telescopic ends of the two first electric push rods 503 are fixedly connected to first mounting blocks 504, which are fixedly connected to the top of the negative pressure extension pipe 505. The first fixing blocks 502 provide fixed support for the first electric push rods 503, ensuring their stable installation on the connecting pipe 501 and preventing displacement during operation. The first electric push rods 503 move the first mounting blocks 504 through telescopic movement. The first mounting blocks 504 connect the first electric push rods 503 and the negative pressure extension pipe 505, transmitting the power of the electric push rods to the negative pressure extension pipe 505, thereby realizing the telescopic adjustment of the negative pressure extension pipe 505. The longitudinal coverage range of the annular negative pressure port can be adjusted according to the size and position of the dust generation port of the powder water-soluble fertilizer processing equipment, adapting to different specifications of processing equipment.

[0022] A second fixing block 506 is symmetrically fixedly connected to one side of the connecting pipe 501. A second electric push rod 507 is fixedly installed at one end of each of the two second fixing blocks 506. The telescopic end of the second electric push rod 507 is fixedly connected to a second mounting block 508 that is fixedly connected to the side of the negative pressure matching pipe 509. The second fixing block 506 provides a mounting carrier for the second electric push rod 507, ensuring the stability of its connection with the connecting pipe 501. The second electric push rod 507, as a power component, drives the second mounting block 508 to move through telescopic movement. The second mounting block 508 connects the second electric push rod 507 and the negative pressure matching pipe 509, causing the negative pressure matching pipe 509 to extend and retract laterally, further adjusting the lateral coverage range of the annular negative pressure port, so that the negative pressure adsorption area can accurately match the lateral size of the dust generation port of the powder water-soluble fertilizer processing equipment, reducing the adsorption blind zone.

[0023] The connecting pipe 501 has symmetrically arranged guide holes 5010 on both sides of its interior, which communicate with the internal cavity of the negative pressure matching pipe 509. The guide holes 5010 enable communication between the connecting pipe 501 and the internal cavity of the negative pressure matching pipe 509, allowing the dust adsorbed by the negative pressure matching pipe 509 to enter the connecting pipe 501 through the guide holes 5010. The connecting pipe 501 has symmetrically fixed inclined plates 5011 for airflow guidance in the middle of its interior, located on one side of the guide holes 5010. The two inclined plates 5011 and the connecting pipe 501 combine to form a rectangular groove. The connecting pipe 5012 for auxiliary heating of the connecting pipe 501 is symmetrically fixed on both sides of the connecting pipe 501. The installation of the inclined plates 5011 is used to assist the flow of air inside the connecting pipe 501. The rectangular groove is formed to reserve a cavity for the installation of the fan outlet. At the same time, the heat pipe 5012 can slightly heat the airflow, reduce the airflow humidity, prevent the powder water-soluble fertilizer dust from clumping due to moisture, and ensure the smoothness of dust transportation.

[0024] A first support block 6 is symmetrically fixedly connected to both sides of the vertical pipe 401. One of the first support blocks 6 movably passes through a limiting rod 7. The other end of the limiting rod 7 movably passes through a second support block 8 fixedly connected to the connecting pipe 501. The other end of the first support block 6 movably passes through a screw 9. The other end of the screw 9 is threadedly connected to the second support block 8. A drive motor 10 is fixedly installed at the bottom of one of the second support blocks 8. The output end of the drive motor 10 passes through the second support block 8 and is fixedly connected to the screw 9. The first support block 6 and the second support block 8 cooperate to form the vertical pipe 401 and... The connecting support structure between the connecting pipes 501 ensures the stability of their docking. The limiting rod 7 restricts the movement direction of the connecting pipe 501, allowing it to move up and down along the axial direction of the vertical pipe 401 to avoid deviation. The screw 9 rotates under the drive of the drive motor 10, and through the threaded transmission, it drives the connecting pipe 501 to adjust its height up and down. The drive motor 10 provides power for the rotation of the screw 9, realizing the adjustment of the overall height of the negative pressure supporting component 5. It can accurately match the adsorption position according to the height of the dust generation port of the powder water-soluble fertilizer processing equipment, improving the targeting of dust adsorption.

[0025] A right-angle plate 11 is fixedly connected to the bottom of the connecting pipe 501, and a second fan 12 is fixedly installed on the top of the right-angle plate 11. The output end of the second fan 12 is connected to the middle of the bottom of the connecting pipe 501 through a pipe. Inside the connecting pipe 501, between two inclined plates 5011 and above the output end of the second fan 12, a filter screen 13 is fixedly installed. The right-angle plate 11 provides a fixed installation platform for the second fan 12, ensuring that the second fan 12 operates stably at the bottom of the connecting pipe 501. The second fan 12 serves as an auxiliary power source, enhancing the negative pressure intensity inside the connecting pipe 501. Especially when the dust concentration is high during the processing of powdered water-soluble fertilizers, it improves the dust adsorption efficiency and prevents dust from accumulating inside the connecting pipe 501. The filter screen 13 filters the dust entering the connecting pipe 501, preventing larger dust particles or impurities from entering the second fan 12, protecting the internal components of the second fan 12, extending its service life, and preventing impurities from clogging the pipe and affecting dust transportation.

[0026] The working principle of this utility model is as follows: When the equipment is running, the first fan 2 on one side of the negative pressure machine body 1 starts first, and forms a basic negative pressure inside the negative pressure machine body 1 through the suction effect. At the same time, the second fan 12 on the right-angle plate 11 at the bottom of the connecting pipe 501 starts synchronously, and its output end sends air into the connecting pipe 501 through the pipe. Combined with the negative pressure effect of the first fan 2, the negative pressure intensity is strengthened in the channel composed of the connecting pipe 501, the negative pressure extension pipe 505 and the negative pressure matching pipe 509, providing dual power support for dust adsorption.

[0027] The first electric push rod 503 on the first fixed block 502 extends and retracts, causing the negative pressure extension tube 505 connected to the first mounting block 504 to extend and retract laterally along the bottom of the connecting tube 501, adjusting the lateral coverage of the annular negative pressure port. The second electric push rod 507 on the second fixed block 506 extends and retracts, causing the negative pressure matching tube 509 connected to the second mounting block 508 to extend and retract laterally along the bottom of the connecting tube 501, adapting to the lateral dimensions of the dust generation port. The drive motor 10 drives the screw 9 to rotate. Under the directional restriction of the limiting rod 7, the second support block 8 drives the connecting tube 501 and the entire set of negative pressure matching components 5 to move up and down along the axial direction of the vertical tube 401, so that the annular negative pressure port is accurately aligned with the height of the dust generation port, reducing the adsorption blind zone.

[0028] After adjustment, the annular negative pressure port formed by the negative pressure extension pipe 505 and the negative pressure matching pipe 509 adsorbs dust generated during the processing of powdered water-soluble fertilizer from multiple directions. The arc-shaped groove 5090 at the end of the negative pressure matching pipe 509 optimizes the airflow direction and guides the dust to quickly enter the internal cavity of the negative pressure matching pipe 509. Then, it enters the connecting pipe 501 through the guide holes 5010 on both sides of the connecting pipe 501. The inclined plate 5011 inside the connecting pipe 501 further regulates the airflow path, causing the dust to flow towards the vertical pipe 401 along the rectangular groove formed by the inclined plate 5011 and the connecting pipe 501. At the same time, the heat pipes 5012 on both sides of the connecting pipe 501 slightly heat the airflow, reduce the air humidity, and prevent the powdered water-soluble fertilizer dust from clumping due to moisture, ensuring smooth conveying. After the dust enters the vertical pipe 401 with the airflow, it enters the negative pressure machine body 1 through the negative pressure pipe 4 for collection.

[0029] It should be noted that in this embodiment, the first fan 2, the first electric push rod 503, the second electric push rod 507, the drive motor 10, and the second fan 12 all need to be connected to an external power source, and each device is connected to a control device that is compatible with it. Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present 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 the present utility model should be included within the protection scope of the present utility model.

Claims

1. A negative pressure dust removal device for processing powdered water-soluble fertilizer, comprising a negative pressure machine body (1), a first fan (2) fixedly installed on the upper side of one side of the negative pressure machine body (1), and a support leg (3) fixedly installed on the bottom of the negative pressure machine body (1), characterized in that: A negative pressure pipe (4) is fixedly installed at the bottom of the negative pressure machine body (1). A vertical pipe (401) is fixedly installed at the bottom of the negative pressure pipe (4). A negative pressure matching component (5) adapted to the dust generation port of the powder water-soluble fertilizer processing equipment is provided at the bottom of the negative pressure machine body (1). The negative pressure matching component (5) includes a connecting pipe (501) that is inserted into the vertical pipe (401). A negative pressure extension pipe (505) is symmetrically inserted at the middle of the bottom two ends of the connecting pipe (501). A negative pressure matching pipe (509) is symmetrically inserted at both ends of the bottom of the two connecting pipes (501). An arc-shaped groove (5090) for guiding flow is symmetrically opened at the ends of the two negative pressure matching pipes (509). The negative pressure extension tube (505) and the negative pressure matching tube (509) are combined to form an annular negative pressure port for adsorbing dust.

2. The negative pressure dust removal device for processing powdered water-soluble fertilizers according to claim 1, characterized in that: First fixing blocks (502) are symmetrically fixedly installed above both ends of the connecting pipe (501). First electric push rods (503) are fixedly installed at one end of the two first fixing blocks (502). The telescopic ends of the two first electric push rods (503) are fixedly connected to first mounting blocks (504) that are fixedly connected to the top of the negative pressure extension pipe (505).

3. The negative pressure dust removal device for processing powdered water-soluble fertilizers according to claim 1, characterized in that: A second fixing block (506) is symmetrically fixed to one side of the connecting pipe (501), and a second electric push rod (507) is fixedly installed at one end of the two second fixing blocks (506). The telescopic end of the second electric push rod (507) is fixedly connected to a second mounting block (508) that is fixedly connected to the side of the negative pressure matching pipe (509).

4. The negative pressure dust removal device for processing powdered water-soluble fertilizers according to claim 1, characterized in that: The connecting pipe (501) has symmetrically opened guide holes (5010) on both sides of its interior, which are connected to the internal cavity of the negative pressure matching pipe (509).

5. A negative pressure dust removal device for processing powdered water-soluble fertilizers according to claim 1, characterized in that: The connecting pipe (501) has a symmetrically fixed inclined plate (5011) for airflow guidance in the middle of its interior, located on one side of the guide hole (5010). The two inclined plates (5011) and the connecting pipe (501) form a rectangular groove. Heat pipes (5012) for auxiliary heating of the connecting pipe (501) are symmetrically fixed on both sides of the connecting pipe (501).

6. The negative pressure dust removal device for processing powdered water-soluble fertilizers according to claim 1, characterized in that: The vertical tube (401) is symmetrically fixedly connected to two sides of a first support block (6). One of the first support blocks (6) is movably passed through a limit rod (7). The other end of the limit rod (7) is movably passed through a second support block (8) fixedly connected to the connecting tube (501). The other end of the first support block (6) is movably passed through a screw (9). The other end of the screw (9) is threadedly connected to the second support block (8). A drive motor (10) is fixedly installed at the bottom of the second support block (8). The output end of the drive motor (10) passes through the second support block (8) and is fixedly connected to the screw (9).

7. A negative pressure dust removal device for processing powdered water-soluble fertilizers according to claim 1, characterized in that: A right-angle plate (11) is fixedly connected to the bottom of the connecting pipe (501), and a second fan (12) is fixedly installed on the top of the right-angle plate (11). The output end of the second fan (12) is connected to the middle of the bottom of the connecting pipe (501) through a pipe. A filter screen (13) is fixedly installed inside the connecting pipe (501) between two inclined plates (5011) and above the output end of the second fan (12).

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