Dust removal device of grain drying tower

Abstract

The utility model discloses a dust removal device of a grain drying tower, and particularly relates to the technical field of dust removal devices, the dust removal device comprises a first mounting frame and a second mounting frame fixed on one side of the first mounting frame, a centrifugal dust remover is mounted on the first mounting frame, an exhaust pipe is arranged at the top of the centrifugal dust remover, and a dust removal fan is arranged on the exhaust pipe. A dust discharging hopper is arranged at the bottom of the drying tower, a fan is mounted on the second mounting frame, and the drying tower further comprises a filtering and dehumidifying mechanism for performing primary treatment on waste gas discharged by the drying tower; according to the utility model, through the arrangement of the filtering and dehumidifying mechanism, waste gas can be preliminarily filtered and can be dehumidified, so that the problem that dust is attached to the inside of the centrifugal dust collector to scale due to high humidity of the waste gas is avoided, subsequent self-cleaning of the centrifugal dust collector is facilitated, the dust collection effect of the centrifugal dust collector is improved, and the service life of the centrifugal dust collector is prolonged. The efficient dust removal of the grain drying tower waste gas is further realized.

Description

TECHNICAL FIELD

[0001] The utility model relates to dust removal device technical field, concretely relates to a dust removal device of grain drying tower. BACKGROUND

[0002] Grain drying tower is a kind of mechanical equipment for reducing the moisture content of grain, prolonging storage time, widely used in agricultural, grain processing and warehousing field.And grain drying tower will produce a large amount of dust (such as grain chippings, dust, etc.) in the process of operation, these dust not only pollute the environment, but also may affect the performance of equipment and personnel health.Therefore, dust removal device is an integral part of drying tower system.

[0003] In the prior art such as the patent with the application number 201721203564.0, a dust removal device of grain drying tower is disclosed, which comprises a centrifugal dust collector, a mixed flow fan and a volute, the air inlet of the mixed flow fan is connected with the air outlet of the drying tower, the air outlet of the mixed flow fan is connected with the air inlet of the volute, the air outlet of the volute is connected with the air inlet of the centrifugal dust collector, the upper part of the volute is provided with a rain cap, the top of the centrifugal dust collector is connected with a circulating pipe, the circulating pipe is connected into the air outlet of the drying tower, the bottom of the centrifugal dust collector is connected with an ash discharge pipe, and the bottom of the ash discharge pipe is connected with an air lock.The dust removal efficiency of the dust removal device is superimposed by the dust removal efficiency of the centrifugal dust collector and the volute, and the efficiency is improved to about 97%, which meets the environmental protection requirements of the grain drying tower and lays a foundation for improving the core competitiveness of grain drying products.However, the exhaust gas discharged from the grain drying tower is often mixed with water vapor, making the exhaust gas relatively humid, and when the above dust removal device uses the mixed flow fan to convey the exhaust gas into the centrifugal dust collector for dust removal, the dust or impurities in the relatively humid exhaust gas are easy to adhere to the inside of the centrifugal dust collector, thereby causing the inside of the centrifugal dust collector to scale, and the adhered dust or impurities are difficult to blow off during subsequent self-cleaning of the centrifugal dust collector, resulting in poor dust removal effect of the centrifugal dust collector, and further affecting the efficient dust removal of the grain drying tower. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a dust removal device of grain drying tower to solve the above technical deficiencies.

[0005] In order to achieve the above purpose, the utility model provides the following technical scheme: a dust removal device of grain drying tower, comprising a first mounting bracket, and a second mounting bracket fixed on one side of the first mounting bracket, a centrifugal dust collector is installed on the first mounting bracket, and an exhaust pipe is arranged at the top of the centrifugal dust collector, and a dust discharging hopper is arranged at the bottom, a fan is installed on the second mounting bracket, a gas supply pipe is connected between one end of the fan and the air inlet end of the centrifugal dust collector, and a gas suction pipe is connected to the other end, and further comprising a filter and dehumidification mechanism for primary treatment of the exhaust gas discharged from the drying tower;

[0006] The filter and dehumidification mechanism comprises a processing box, a filter plate and a rotary dehumidifier are arranged in the processing box, the filter plate is located at the air inlet side of the rotary dehumidifier, a gravity settling chamber is formed between the side of the filter plate away from the rotary dehumidifier and the processing box, a detachable dust collecting box is arranged at the bottom of the processing box, a dust discharging port for connecting the gravity settling chamber and the dust collecting box is arranged at the bottom end of the processing box, and one side of the processing box is fixedly connected with an air suction pipe and the other side is connected with a connecting pipe.

[0007] Preferably, two supporting strips are further arranged at the bottom of the processing box and symmetrically arranged at the two sides of the dust collecting box, and a side strip is fixedly arranged at each side of the dust collecting box, and a strip-shaped slot is arranged at the side of each supporting strip for inserting the side strip.

[0008] Preferably, a slot is arranged at the top of the processing box for dismounting the filter plate, a cover plate is arranged at the top end of the filter plate and seals the slot, and a clamping piece is further arranged at the bottom of the cover plate for clamping and fixing the cover plate to the processing box.

[0009] Preferably, the clamping piece comprises two insertion blocks symmetrically arranged at the two sides of the bottom of the cover plate, a cavity is arranged in each insertion block, a spring is arranged in each cavity, two movable blocks are connected to the two ends of the spring, a clamping block is arranged at one side of each movable block and can extend to the outside of the insertion block, and two insertion holes are arranged at the top of the processing box for inserting the two insertion blocks, and a clamping groove is arranged at the inner wall of each insertion hole and matched with the clamping block.

[0010] Preferably, a guide strip is arranged at the inner wall of each cavity, and a guide groove is arranged at the two sides of each movable block and matched with the guide strip.

[0011] Preferably, a limiting strip is arranged at the inner wall of the slot, and a limiting groove is arranged at the two sides of the filter plate and matched with the limiting strip.

[0012] Preferably, a baffle is further arranged in the processing box, the baffle is located at the air outlet side of the rotary dehumidifier, and a gap is left between the bottom of the baffle and the processing box for air flow.

[0013] In the above technical solution, the technical effects and advantages of the present application are provided.

[0014] 1. By setting up a filtration and dehumidification mechanism, when removing dust from the exhaust gas of the drying tower, the exhaust gas can be initially filtered by a filter plate to block larger impurities or dust in the exhaust gas. Then, a rotary dehumidifier is used to dehumidify the exhaust gas. Subsequently, a centrifugal dust collector is used to filter the exhaust gas again, thereby achieving multi-stage filtration and dust removal of the exhaust gas discharged from the grain drying tower, which greatly improves the dust removal effect of the exhaust gas.

[0015] Furthermore, by dehumidifying the exhaust gas using a rotary dehumidifier, the problem of dust adhering to and scaling inside the centrifugal dust collector due to high humidity can be avoided. This facilitates the subsequent self-cleaning of the centrifugal dust collector, improves its dust removal efficiency, and further achieves efficient dust removal of the exhaust gas from the grain drying tower.

[0016] 2. The snap-fit ​​mechanism allows for quick assembly and disassembly of the filter plates, facilitating regular cleaning or replacement and ensuring effective filtration of exhaust gases. This further facilitates primary treatment of the exhaust gases, thereby achieving efficient dust removal in the grain drying tower. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a front view of the present invention;

[0020] Figure 3 This is a structural diagram of the dust collection box, filter plate, and processing box of this utility model when disassembled;

[0021] Figure 4 This is a partial cross-sectional view of the processing box of this utility model;

[0022] Figure 5 for Figure 4 The front view;

[0023] Figure 6 This is a partial cross-sectional view of the snap-fit ​​connector of this utility model;

[0024] Figure 7 for Figure 2 Enlarged view of point A in the image;

[0025] Figure 8 for Figure 3 Enlarged view of point B in the image.

[0026] Explanation of reference numerals in the attached figures:

[0027] 1. First mounting bracket; 2. Second mounting bracket; 3. Fan; 4. Air supply pipe; 5. Exhaust pipe; 6. Centrifugal dust collector; 7. Ash hopper; 8. Processing box; 9. Cover plate; 10. Suction pipe; 11. Connecting pipe; 12. Dust collection box; 13. Side strip; 14. Filter plate; 15. Snap-fit ​​component; 151. Insert block; 152. Movable block; 153. Snap-fit ​​block; 154. Spring; 16. Rotary dehumidifier; 17. Baffle plate; 18. Support strip; 19. Limiting strip; 20. Insertion hole; 21. Limiting groove. Detailed Implementation

[0028] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0029] This utility model provides, for example Figures 1-5 The dust removal device for a grain drying tower shown includes a first mounting frame 1 and a second mounting frame 2 fixed to one side of the first mounting frame 1. A centrifugal dust collector 6 is mounted on the first mounting frame 1, and an exhaust pipe 5 is provided at the top of the centrifugal dust collector 6 and an ash discharge hopper 7 is provided at the bottom. An ash discharge valve (not shown in the figure) that is easy to open and close can be provided on the ash discharge hopper 7 to facilitate the discharge of dust. A fan 3 is mounted on the second mounting frame 2, and an air supply pipe 4 is connected between one end of the fan 3 and the air inlet end of the centrifugal dust collector 6, and an air suction pipe 10 is connected to the other end. It also includes a filtration and dehumidification mechanism for primary treatment of the exhaust gas discharged from the drying tower.

[0030] The filtration and dehumidification mechanism includes a processing box 8, inside which a filter plate 14 and a rotary dehumidifier 16 are installed. The filter plate 14 is located on the air inlet side of the rotary dehumidifier 16. The side of the filter plate 14 away from the rotary dehumidifier 16 forms a gravity settling chamber with the processing box 8. A detachable dust collection box 12 is provided at the bottom of the processing box 8, and a dust discharge port connecting the gravity settling chamber and the dust collection box 12 is opened at the bottom of the processing box 8. One side of the processing box 8 is fixedly connected to the suction pipe 10, and the other side is connected to the connecting pipe 11.

[0031] Specifically, regarding how to disassemble and assemble the aforementioned dust collection box 12, as follows: Figures 2-5 as well as Figure 7 As shown, two support bars 18 are also installed at the bottom of the processing box 8, and the two support bars 18 are symmetrically distributed on both sides of the dust collection box 12. Side strips 13 are fixed on both sides of the dust collection box 12, and a strip groove for the side strips 13 to be inserted is opened on the opposite side of the two support bars 18.

[0032] As described above, during use, the connecting pipe 11 can be connected to the air outlet duct of the grain drying tower. When the grain drying tower discharges exhaust gas, the exhaust gas first enters the treatment box 8 through the connecting pipe 11. At this time, the filter plate 14 performs preliminary filtration of the exhaust gas to block larger impurities or dust. As impurities or dust accumulate, they fall into the dust collection box 12 through the dust outlet. The gas is then drawn into the rotary dehumidifier 16 through the filter plate 14 for dehumidification. After dehumidification, the fan 3 draws the gas out of the treatment box 8 through the suction pipe 10 and discharges it into the centrifugal dust collector through the air delivery pipe 4. Inside 6, the centrifugal dust collector 6 removes dust from the gas again. After dust removal, the gas is discharged through the exhaust pipe 5, while the dust is discharged through the ash hopper 7. This achieves secondary filtration of the gas, thereby realizing multi-stage dust removal of the exhaust gas from the grain drying tower. This greatly improves the dust removal effect of the exhaust gas and also dehumidifies the exhaust gas, avoiding the problem of high humidity causing dust to adhere and form scale inside the centrifugal dust collector 6. This facilitates the subsequent self-cleaning of the centrifugal dust collector 6, which is conducive to improving the dust removal effect of the centrifugal dust collector 6 and further realizing efficient dust removal of the exhaust gas from the grain drying tower.

[0033] Furthermore, after the dust removal from the exhaust gas of the drying tower, when the dust collection box 12 needs to be cleaned, the dust collection box 12 can be pulled to move the side strip 13 out along the strip groove in the support strip 18, so that the dust collection box 12 can be disassembled between the two support strips 18. Then, the impurities or dust collected in the dust collection box 12 can be cleaned. After cleaning, the side strip 13 can be inserted into the strip groove on the support strip 18 to connect the dust collection box 12 to the two support strips 18, thus completing the installation of the dust collection box 12. This enables the quick disassembly and assembly of the dust collection box 12 and facilitates the cleaning of the dust collection box 12.

[0034] Furthermore, such as Figure 4 and Figure 5 As shown, a baffle 17 is also installed inside the treatment box 8. The baffle 17 is located on the air outlet side of the rotary dehumidifier 16, and a gap is left between the bottom of the baffle 17 and the treatment box 8 for airflow.

[0035] In another embodiment, such as Figures 1-6 as well as Figure 8 As shown, the top of the processing box 8 is provided with a slot for the filter plate 14 to be disassembled and assembled. The top of the filter plate 14 is equipped with a cover plate 9, and the cover plate 9 is located on the top of the processing box 8 and seals the slot. The bottom of the cover plate 9 is also provided with a snap-fit ​​part 15 to snap and fix it to the processing box 8.

[0036] Specifically, the snap-fit ​​component 15 includes insert blocks 151 symmetrically installed on both sides of the bottom of the cover plate 9. Each insert block 151 has a cavity inside, and each cavity is provided with a spring 154. Both ends of the spring 154 are connected to movable blocks 152. A snap-fit ​​block 153 that can extend to the outside of the insert block 151 is installed on one side of the movable block 152. The top of the processing box 8 has an insertion hole 20 for inserting the two insert blocks 151. Both sides of the inner wall of the two insertion holes 20 have snap-fit ​​grooves that cooperate with the snap-fit ​​block 153.

[0037] When the filter plate 14 needs cleaning or replacement, the cover plate 9 can be pulled to move the filter plate 14 out of the slot. At this time, the insert block 151 moves out of the insertion hole 20 and presses the locking block 153, causing the locking block 153 to push the movable block 152. Subsequently, the movable block 152 presses the spring 154, causing the spring 154 to contract, thereby driving the locking block 153 to disengage from the locking slot and retract into the cavity until the filter plate 14 is pulled out of the processing box 8. Then, the filter plate 14 is cleaned or replaced. After cleaning or replacement, the filter plate 14 is then... The filter plate 14 is inserted into the processing box 8 from the slot until the insert block 151 is inserted into the insertion hole 20. At this time, the snap-fit ​​block 153 corresponds to the snap-fit ​​slot. Then, the spring 154 pushes the snap-fit ​​block 153 into the snap-fit ​​slot through the movable block 152 to snap and fix the insert block 151, thus completing the installation of the filter plate 14. This enables the quick installation and removal of the filter plate 14, facilitates the regular cleaning or replacement of the filter plate 14, ensures the filtration effect of the filter plate 14 on the exhaust gas, further facilitates the primary treatment of exhaust gas, and thus achieves efficient dust removal in the grain drying tower.

[0038] Furthermore, such as Figure 6 As shown, guide strips are installed on both sides of the inner wall of the cavity, and guide grooves that cooperate with the guide strips are opened on both sides of the movable block 152.

[0039] When the spring 154 drives the movable block 152 to move along the cavity, the movable block 152 slides along the guide bar through the guide groove to achieve the limit of the movable block 152, thereby facilitating the stable extension and retraction of the locking block 153 driven by the movable block 152, and further facilitating the quick assembly and disassembly of the filter plate 14.

[0040] Furthermore, such as Figures 3-5 As shown, limit strips 19 are installed on both sides of the inner wall of the groove, and limit grooves 21 that cooperate with the limit strips 19 are opened on both sides of the filter plate 14.

[0041] When the filter plate 14 is disassembled or assembled, the limiting strip 19 can slide along the limiting groove 21 to limit the distance between the filter plate 14 and the processing box 8, thereby facilitating the stable disassembly and assembly of the filter plate 14.

[0042] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A dust removal device for a grain drying tower, comprising a first mounting frame (1) and a second mounting frame (2) fixed to one side of the first mounting frame (1), wherein a centrifugal dust collector (6) is mounted on the first mounting frame (1), and an exhaust pipe (5) is provided at the top of the centrifugal dust collector (6) and an ash discharge hopper (7) is provided at the bottom; a fan (3) is mounted on the second mounting frame (2), and an air supply pipe (4) is connected between one end of the fan (3) and the air inlet end of the centrifugal dust collector (6), and an air suction pipe (10) is connected to the other end, characterized in that: It also includes a filtration and dehumidification mechanism for primary treatment of the exhaust gas discharged from the drying tower; The filtration and dehumidification mechanism includes a processing box (8), inside which a filter plate (14) and a rotary dehumidifier (16) are installed. The filter plate (14) is located on the air inlet side of the rotary dehumidifier (16). The side of the filter plate (14) away from the rotary dehumidifier (16) forms a gravity settling chamber with the processing box (8). A detachable dust collection box (12) is provided at the bottom of the processing box (8), and a dust discharge port is provided at the bottom end of the processing box (8) to connect the gravity settling chamber and the dust collection box (12). One side of the processing box (8) is fixedly connected to the suction pipe (10), and the other side is connected to the connecting pipe (11).

2. The dust removal device for a grain drying tower according to claim 1, characterized in that: The bottom of the processing box (8) is also equipped with two support bars (18), and the two support bars (18) are symmetrically distributed on both sides of the dust collection box (12). Side strips (13) are fixed on both sides of the dust collection box (12), and a strip groove for the side strips (13) to be inserted is opened on the opposite side of the two support bars (18).

3. The dust removal device for a grain drying tower according to claim 1, characterized in that: The top of the processing box (8) is provided with a slot for the filter plate (14) to be disassembled and assembled. The top of the filter plate (14) is equipped with a cover plate (9), and the cover plate (9) is located on the top of the processing box (8) and seals the slot. The bottom of the cover plate (9) is also provided with a snap-fit ​​part (15) to snap-fit ​​and fix it to the processing box (8).

4. The dust removal device for a grain drying tower according to claim 3, characterized in that: The snap-fit ​​component (15) includes inserts (151) symmetrically installed on both sides of the bottom of the cover plate (9). Each insert (151) has a cavity inside, and each cavity is provided with a spring (154). Both ends of the spring (154) are connected to movable blocks (152), and a snap-fit ​​block (153) that can extend to the outside of the insert (151) is installed on one side of the movable block (152). The top of the processing box (8) has a socket (20) for inserting the two inserts (151), and both sides of the inner wall of the two sockets (20) have snap-fit ​​grooves that cooperate with the snap-fit ​​block (153).

5. The dust removal device for a grain drying tower according to claim 4, characterized in that: Guide strips are installed on both sides of the inner wall of the cavity, and guide grooves that cooperate with the guide strips are opened on both sides of the movable block (152).

6. The dust removal device for a grain drying tower according to claim 3, characterized in that: Limiting strips (19) are installed on both sides of the inner wall of the groove, and limiting grooves (21) that cooperate with the limiting strips (19) are opened on both sides of the filter plate (14).

7. The dust removal device for a grain drying tower according to claim 1, characterized in that: The processing box (8) is also equipped with a baffle plate (17), which is located on the air outlet side of the rotary dehumidifier (16), and there is a gap between the bottom of the baffle plate (17) and the processing box (8) for air flow.

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