Tail gas dust removal device for compound fertilizer granulation

Abstract

The utility model discloses a tail gas dust removal device for compound fertilizer granulation relates to compound fertilizer production technical field. The utility model discloses a box, the upper end of box is provided with the suction box, the lower extreme of suction box is provided with the mounting hole, the inside activity of mounting hole is inserted with filter bag, the lower extreme of filter bag extends to the inside of box, the inside of filter bag is provided with cleaning structure, when filter bag is blocked, the air -blast pipe air -blast, and the air of air -blast enters the inside of filter bag through the air -blast pipe, is convenient to the surface of filter bag and is blown to the dust on the surface of filter bag and is blown off, avoids filter bag and blocks, when the air flows in the air -blast pipe, the air -blast pipe rotates under the action of rotating fan blade, and the air -blast pipe drives rotating seat to rotate, and rotating seat drives cleaning strip to rotate, so that cleaning strip can clean the surface of filter bag, strengthens the cleaning effect, can prevent filter bag and blocks.

Description

Technical Field

[0001] This utility model belongs to the field of compound fertilizer production technology, and in particular relates to a tail gas dust removal device for compound fertilizer granulation. Background Technology

[0002] Compound fertilizers are chemical fertilizers containing two or more nutrients. They have advantages such as high nutrient content, few by-products and good physical properties. They play a very important role in balanced fertilization, improving fertilizer utilization, and promoting high and stable crop yields.

[0003] Compound fertilizers can be granulated using various methods, such as rotary drum granulation, rotary disc granulation, and high-tower granulation. For rotary drum granulation, a typical compound fertilizer production system includes a batching tank, reactor, rotary drum granulator, drying unit, cooling unit, screening unit, return conveyor belt, and exhaust gas treatment unit. The batching tank, reactor, and rotary drum granulator are connected sequentially via pipelines. The rotary drum granulator, drying unit, cooling unit, and screening unit are connected sequentially via conveyor belts. The screening unit is connected to the batching tank or rotary drum granulator via the return conveyor belt. The rotary drum granulator, drying unit, and cooling unit are connected to the exhaust gas treatment unit via pipelines.

[0004] In the process of exhaust gas treatment, dust is often collected and treated by bag filter boxes. Although the existing dust collection equipment meets the user's needs to a certain extent, there are still some defects in the use of the equipment. For example, the existing dust collection equipment filters and treats the dust by bag filter. Although there is an air flushing mechanism to clean the bag filter, some stubborn dust or impurities still adhere to the surface of the bag filter and are difficult to clean. Moreover, the bag filter needs to be replaced regularly. The existing bag filter is fixed inside the box and requires tools to remove, which is very inconvenient.

[0005] To address these issues, we provide a dust removal device for exhaust gas in compound fertilizer granulation. Utility Model Content

[0006] The purpose of this utility model is to provide a dust removal device for exhaust gas in compound fertilizer granulation, which can solve the problems of existing dust removal equipment that uses filter bags for centralized dust removal. Although an air flushing mechanism is set up to clean the filter bags, some stubborn dust or impurities still adhere to the surface of the filter bags and are difficult to clean. Moreover, the filter bags need to be replaced regularly, and the existing filter bags are fixed inside the box. When removing them, tools are required, which is very inconvenient.

[0007] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0008] This utility model relates to a dust removal device for exhaust gas in compound fertilizer granulation, comprising a housing, an air suction box at the upper end of the housing, a dust suction pipe on one side of the air suction box, an installation hole at the lower end of the air suction box, a filter bag that is movably inserted inside the installation hole, the lower end of the filter bag extending into the interior of the housing, a cleaning structure inside the filter bag, a connecting structure between the filter bag and the air suction box, a detachable cover at the upper end of the air suction box, and a dust inlet on one side of the housing.

[0009] The present invention is further configured such that a dust baffle is fixedly installed on the upper part of the box body, the dust baffle is located on one side of the dust inlet, both sides of the lower end of the box body are inclined, and a discharge pipe is provided at the lower end of the box body.

[0010] The present invention is further configured such that the cleaning structure includes a support frame, the support frame is fixedly installed at both ends inside the filter bag, and the two support frames are movably interspersed with air blowing pipes, the lower end of the air blowing pipes extends to the outside of the filter bag, and air blowing holes are evenly opened on the surface of the air blowing pipes.

[0011] The present invention is further configured such that a rotating seat is rotatably mounted on the lower end of the filter bag, the rotating seat is connected to the air blowing pipe, and cleaning strips are fixedly mounted on both sides of the upper end of the rotating seat, the cleaning strips being in contact with the surface of the filter bag.

[0012] The present invention is further configured such that an air-filling tube is inserted through one side of the box cover, an insertion tube is evenly arranged at the lower end of the air-filling tube, a retaining ring is provided on the inner wall of the insertion tube, and the upper end of the air-blowing tube extends through the insertion tube into the interior of the air-filling tube.

[0013] The present invention is further configured such that rotating fan blades are provided on both sides of the upper end of the air blowing pipe, a sealing block is provided on the surface of the air blowing pipe, the sealing block is inserted into the inside of the insertion pipe and fits against the retaining ring, and the length of the rotating fan blade is less than half the inner diameter of the retaining ring.

[0014] The present invention is further configured such that the connecting structure includes a fixing ring seat, the fixing ring seat is fixedly installed at the lower end inside the air intake box, the fixing ring seat is located above the mounting hole, a locking block is installed at the upper end of the fixing ring seat, the locking block is L-shaped, a connecting ring seat is fixedly installed at the upper end of the filter bag, the connecting ring seat is movably inserted inside the fixing ring seat, and the upper end of the connecting ring seat is in contact with the lower surface of the locking block.

[0015] The present invention is further configured such that: both sides of the surface of the connecting ring seat are provided with insertion ports; an annular groove is provided on the outer side of the connecting ring seat; a locking tooth ring is provided inside the annular groove; a groove is provided on the inner wall of the fixing ring seat; a locking rod is movably inserted on both sides of the groove; a locking tooth block is fixedly installed at one end of the locking rod; the locking tooth block engages with the locking tooth ring; a connecting strip is fixedly installed at the other end of the locking rod; a compression spring connected to the locking tooth block is sleeved on the surface of the locking rod; and a compression bolt movably inserted on the surface of the connecting strip is rotatably connected to the locking tooth block.

[0016] This utility model has the following beneficial effects:

[0017] 1. In this utility model, when the filter bag is clogged, the air-blowing pipe inflates the filter bag. The blown air enters the interior of the filter bag through the air-blowing pipe, facilitating the blowing of air onto the surface of the filter bag and blowing off the dust, thus preventing clogging. As the air flows inside the air-blowing pipe, the air-blowing pipe rotates under the action of the rotating fan blades. The air-blowing pipe drives the rotating seat to rotate, which in turn drives the cleaning strip to rotate, allowing the cleaning strip to clean the surface of the filter bag, enhancing the cleaning effect and preventing the filter bag from clogging.

[0018] 2. In this utility model, the user rotates the clamping bolt, which drives the locking tooth block to move, causing the locking tooth block to move into the groove and disengage from the locking tooth ring. This allows the connecting ring seat to rotate inside the fixed ring seat, moving the locking block to the insertion position. Under the action of the insertion position, the connecting ring seat can be pulled out from inside the fixed ring seat, and the filter bag can be pulled out from inside the mounting hole, thus facilitating the replacement of the filter bag. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the internal structure of the device of this utility model;

[0021] Figure 2 This is a schematic diagram of a half-section of the device of this utility model;

[0022] Figure 3 For the present utility model Figure 2 Schematic diagram of the structure at point A in the middle;

[0023] Figure 4This is a half-sectional view of the bag mounting area in the device of this utility model.

[0024] Figure 5 For the present utility model Figure 4 Schematic diagram of the structure at point B;

[0025] The attached diagram lists the components represented by each number as follows:

[0026] 100. Housing; 110. Dust inlet; 120. Dust baffle; 130. Discharge pipe; 140. Fixing ring seat; 141. Locking block; 142. Groove; 143. Locking tooth block; 144. Locking rod; 145. Compression spring; 146. Connecting strip; 147. Compression bolt; 200. Suction box; 210. Box cover; 220. Air inlet pipe; 221. Insertion pipe; 222. Retaining ring; 230. Suction pipe; 300. Filter bag; 310. Rotating seat; 311. Cleaning strip; 320. Air blowing pipe; 321. Rotating fan blade; 322. Sealing block; 330. Connecting ring seat; 331. Insertion port; 332. Annular groove; 333. Locking tooth ring. Detailed Implementation

[0027] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0028] like Figure 1 and Figure 2 As shown, this embodiment provides a dust removal device for exhaust gas in compound fertilizer granulation, including a housing 100. An air suction box 200 is provided at the upper end of the housing 100. A dust suction pipe 230 is provided on one side of the air suction box 200. An installation hole is provided at the lower end of the air suction box 200. A filter bag 300 is movably inserted inside the installation hole, with the lower end of the filter bag 300 extending into the interior of the housing 100. A cover 210 is detachably installed at the upper end of the air suction box 200. A dust inlet 110 is provided on one side of the housing 100. A dust baffle 120 is fixedly installed at the upper end of the interior of the housing 100, located on one side of the dust inlet 110. Both sides of the lower end of the housing 100 are inclined. A discharge pipe 130 is provided at the lower end of the housing 100.

[0029] In this embodiment, the suction pipe 230 is connected to the suction device, which generates suction inside the housing 100. Dust-laden exhaust gas enters the housing 100 through the dust inlet 110. Under the action of the dust baffle 120, the dust can be directed to the bottom of the housing 100. Under the action of the filter bag 300, the dust in the exhaust gas is easily filtered. The filtered dust accumulates inside the housing 100 and can be discharged through the discharge pipe 130, facilitating the centralized treatment of dust.

[0030] like Figures 1 to 3 As shown in this embodiment, a dust removal device for exhaust gas in compound fertilizer granulation is provided. The filter bag 300 has an internal cleaning structure, which includes a support frame. The support frame is fixedly installed at both ends inside the filter bag 300. Air blowing pipes 320 are movably inserted through the two support frames. The lower end of the air blowing pipes 320 extends to the outside of the filter bag 300. Air blowing holes are evenly distributed on the surface of the air blowing pipes 320. A rotating seat 310 is rotatably installed at the lower end of the filter bag 300. The rotating seat 310 is connected to the air blowing pipes 320. Cleaning strips 311 are fixedly installed on both sides of the upper end of the rotating seat 310. The cover 210 is fitted to the surface of the filter bag 300. An air-pressing pipe 220 is inserted through one side of the cover 210. Insertion pipes 221 are evenly arranged at the lower end of the air-pressing pipe 220. A retaining ring 222 is provided on the inner wall of the insertion pipe 221. The upper end of the blowing pipe 320 extends through the insertion pipe 221 into the interior of the air-pressing pipe 220. Rotating fan blades 321 are provided on both sides of the upper end of the blowing pipe 320. A sealing block 322 is provided on the surface of the blowing pipe 320. The sealing block 322 is inserted into the interior of the insertion pipe 221 and fits against the retaining ring 222. The length of the rotating fan blade 321 is less than half the length of the inner diameter of the retaining ring 222.

[0031] In this embodiment, when the filter bag 300 is clogged, the air-blowing pipe 220 blows air into the interior of the filter bag 300, facilitating the blowing of air onto the surface of the filter bag 300 and blowing off the dust on the surface of the filter bag 300, thus preventing the filter bag 300 from becoming clogged. When the air flows inside the air-blowing pipe 220, the air-blowing pipe 320 rotates under the action of the rotating fan blade 321. The air-blowing pipe 320 drives the rotating seat 310 to rotate, and the rotating seat 310 drives the cleaning strip to rotate, so that the cleaning strip can clean the surface of the filter bag 300, enhancing the cleaning effect and preventing the filter bag 300 from becoming clogged.

[0032] like Figure 4 and Figure 5As shown in this embodiment, a dust removal device for exhaust gas in compound fertilizer granulation is provided. A connecting structure is provided between the filter bag 300 and the suction box 200. The connecting structure includes a fixing ring seat 140, which is fixedly installed inside the lower end of the suction box 200. The fixing ring seat 140 is located above the mounting hole. A locking block 141 is installed on the upper end of the fixing ring seat 140. The locking block 141 is L-shaped. A connecting ring seat 330 is fixedly installed on the upper end of the filter bag 300. The connecting ring seat 330 is movably inserted inside the fixing ring seat 140. The upper end of the connecting ring seat 330 is in contact with the lower surface of the locking block 141. Both sides of the surface of the connecting ring seat 330 are open. An insertion port 331 is provided. An annular groove 332 is provided on the outer side of the connecting ring seat 330. A locking toothed ring 333 is provided inside the annular groove 332. A groove 142 is provided on the inner wall of the fixing ring seat 140. A locking rod 144 is movably inserted on both sides of the groove 142. A locking toothed block 143 is fixedly installed at one end of the locking rod 144. The locking toothed block 143 is engaged with the locking toothed ring 333. A connecting strip 146 is fixedly installed at the other end of the locking rod 144. A compression spring 145 connected to the locking toothed block 143 is sleeved on the surface of the locking rod 144. A compression bolt 147 movably inserted on the surface of the connecting strip 146 is rotatably connected to the locking toothed block 143.

[0033] In this embodiment, the user rotates the clamping bolt 147, which drives the locking tooth block 143 to move, causing the locking tooth block 143 to move into the groove 142, disengaging the locking tooth block 143 from the locking tooth ring 333. This allows the connecting ring seat 330 to rotate inside the fixed ring seat 140, moving the locking block 141 to the insertion port 331. Under the action of the insertion port 331, the connecting ring seat 330 can be pulled out from inside the fixed ring seat 140, and the filter bag 300 can be pulled out from inside the mounting hole, thus facilitating the replacement of the filter bag 300.

[0034] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0035] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A dust removal device for exhaust gas in compound fertilizer granulation, comprising a housing (100), characterized in that: The upper end of the housing (100) is provided with an air suction box (200), and a dust suction pipe (230) is provided on one side of the air suction box (200). The lower end of the air suction box (200) is provided with an installation hole, and a filter bag (300) is movably inserted inside the installation hole. The lower end of the filter bag (300) extends into the interior of the housing (100). The interior of the filter bag (300) is provided with a cleaning structure. A connecting structure is provided between the filter bag (300) and the air suction box (200). The upper end of the air suction box (200) is detachably equipped with a box cover (210), and a dust inlet (110) is provided on one side of the housing (100).

2. The exhaust gas dust removal device for compound fertilizer granulation according to claim 1, characterized in that: A dust baffle (120) is fixedly installed at the upper end of the box (100). The dust baffle (120) is located on one side of the dust inlet (110). Both sides of the lower end of the box (100) are inclined. A discharge pipe (130) is provided at the lower end of the box (100).

3. The exhaust gas dust removal device for compound fertilizer granulation according to claim 1, characterized in that: The cleaning structure includes a support frame, which is fixedly installed at both ends inside the filter bag (300). Two support frames are movably interspersed with air blowing pipes (320). The lower end of the air blowing pipes (320) extends to the outside of the filter bag (300), and air blowing holes are evenly opened on the surface of the air blowing pipes (320).

4. The exhaust gas dust removal device for compound fertilizer granulation according to claim 3, characterized in that: The filter bag (300) is rotatably mounted with a rotating seat (310), which is connected to the air blowing pipe (320). Cleaning strips (311) are fixedly installed on both sides of the upper end of the rotating seat (310), and the cleaning strips (311) are in contact with the surface of the filter bag (300).

5. The exhaust gas dust removal device for compound fertilizer granulation according to claim 4, characterized in that: An air-filling tube (220) is inserted through one side of the cover (210). Insertion tubes (221) are evenly arranged at the lower end of the air-filling tube (220). A retaining ring (222) is provided on the inner wall of the insertion tube (221). The upper end of the air-blowing tube (320) extends through the insertion tube (221) into the interior of the air-filling tube (220).

6. The exhaust gas dust removal device for compound fertilizer granulation according to claim 5, characterized in that: Rotating fan blades (321) are provided on both sides of the upper end of the air blowing pipe (320). A sealing block (322) is provided on the surface of the air blowing pipe (320). The sealing block (322) is inserted into the inside of the insertion pipe (221) and fits against the retaining ring (222). The length of the rotating fan blade (321) is less than half the length of the inner diameter of the retaining ring (222).

7. The exhaust gas dust removal device for compound fertilizer granulation according to claim 1, characterized in that: The connection structure includes a fixed ring seat (140), which is fixedly installed at the lower end inside the air intake box (200). The fixed ring seat (140) is located above the mounting hole. A locking block (141) is installed at the upper end of the fixed ring seat (140). The locking block (141) is L-shaped. A connecting ring seat (330) is fixedly installed at the upper end of the filter bag (300). The connecting ring seat (330) is movably inserted inside the fixed ring seat (140). The upper end of the connecting ring seat (330) is in contact with the lower surface of the locking block (141).

8. The exhaust gas dust removal device for compound fertilizer granulation according to claim 7, characterized in that: The connecting ring seat (330) has an insertion port (331) on both sides of its surface. The connecting ring seat (330) has an annular groove (332) on its outer side. A locking toothed ring (333) is provided inside the annular groove (332). The fixing ring seat (140) has a groove (142) on its inner wall. A locking rod (144) is movably inserted on both sides of the groove (142). A locking toothed block (143) is fixedly installed at one end of the locking rod (144). The locking toothed block (143) is engaged with the locking toothed ring (333). A connecting strip (146) is fixedly installed at the other end of the locking rod (144). A compression spring (145) connected to the locking toothed block (143) is sleeved on the surface of the locking rod (144). A compression bolt (147) rotatably connected to the locking toothed block (143) is movably inserted on the surface of the connecting strip (146).

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