Magnesium oxide rotary kiln

Abstract

The utility model relates to the technical field of magnesium oxide calcination, in particular to a magnesium oxide rotary kiln. The magnesium oxide rotary kiln comprises a rotary kiln body, a smoke chamber and a dust collector. The dust collector comprises a dust collector body and a dust collection pipe. The dust collection pipe comprises a dust collection opening and a horizontally-arranged pipeline, the dust collection opening is inserted into the smoke chamber, one end of the pipeline communicates with the dust collection opening, and the other end of the pipeline is connected with the dust collector body. And a dust storage box and a filter screen are arranged on the pipeline. The dust storage box is arranged on the side, close to the dust suction opening, of the filter screen, and the right side of the filter screen is flush with the left side of the dust storage box. The filter screen can filter solid particles in smoke entering the pipeline, so that most of the solid particles can be left on the right side of the filter screen, and the part of the solid particles can fall into the dust storage box under the influence of gravity. Smoke in the smoke chamber is removed through the dust collector, meanwhile, the situation that the dust collector is blocked due to the fact that solid particles enter the dust collector body can be avoided, and the service life of the dust collector is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of magnesium oxide calcination technology, specifically to a magnesium oxide rotary kiln. Background Technology

[0002] Magnesium oxide is an important chemical raw material widely used in the manufacture of pharmaceuticals, ceramics, building materials, rubber products, and other industries. A magnesium oxide rotary kiln is a device used to process magnesium oxide, improving the quality of magnesium oxide particles.

[0003] In existing magnesia rotary kilns, the interaction of raw materials and combustion gases under high temperature and pressure produces oxides and water vapor. During combustion, a mixture of particulate matter, dust, and waste gas is generated, resulting in flue gas. Therefore, a smoke chamber is typically installed at the kiln tail, with a vacuum cleaner installed inside to expedite flue gas removal. Current vacuum cleaners generally absorb flue gas directly by creating negative pressure at the hood. However, due to the high particulate matter content in the flue gas, a large amount of these particles directly enters the vacuum cleaner, easily causing blockages. Furthermore, the impurity collection components of existing vacuum cleaners are usually located at the tail end. Therefore, during flue gas absorption, the gas passes through the internal pipes of the vacuum cleaner, and because of the large amount of particulate matter, some of these particles accumulate in the pipes, eventually clogging the pipes and damaging the vacuum cleaner. Regarding the existing connection between the smoke chamber and the vacuum cleaner, whether the vacuum cleaner is blocked or damaged, both the smoke chamber and the vacuum cleaner need to be disassembled separately in order to repair the vacuum cleaner, which makes the entire smoke treatment process time-consuming and labor-intensive. Utility Model Content

[0004] In order to solve the technical problem that particulate matter in the flue gas generated by the magnesium oxide rotary kiln easily clogs the vacuum cleaner when treating the flue gas, this utility model provides a magnesium oxide rotary kiln.

[0005] This utility model adopts the following technical solution: a magnesium oxide rotary kiln, comprising a rotary kiln body, a smoke chamber, and a vacuum cleaner. The vacuum cleaner includes a vacuum cleaner body and a suction pipe inserted into the smoke chamber, the suction pipe having an L-shaped structure. The suction pipe includes a suction port and a horizontally arranged pipe. The suction port is inserted into the smoke chamber, and the two ends of the pipe are connected to the suction port and the vacuum cleaner body, respectively. A dust collection box and a filter screen are provided on the pipe, the filter screen being vertically installed inside the pipe and filtering solid particles in the smoke gas sucked in by the suction port. The dust collection box is detachably installed at the bottom of the pipe and positioned on the filter screen near the suction port. The right side of the filter screen is flush with the left side of the dust collection box. Solid particles entering the pipe fall into the dust collection box under the influence of gravity.

[0006] As a further improvement of this utility model, the cross-section of the pipe is rectangular, and multiple mounting plates are provided vertically downward on the bottom surface of the pipe. The multiple mounting plates form a dust storage chamber, which is connected to the pipe. The dust storage box is slidably installed in the dust storage chamber. The pipe is provided with a locking component, which is used to fix the dust storage box in the dust storage chamber.

[0007] As a further improvement of this utility model, the dust storage chamber has a rectangular structure and an opening at one end. The structure of the dust storage box matches the structure of the dust storage chamber. The dust storage box is inserted into the dust storage chamber through the opening and can slide inside the dust storage chamber.

[0008] As a further improvement of this utility model, the locking component includes a sliding rod, a connecting block, and at least one insert block. A sliding groove is provided vertically on the side wall of the pipe on the side of the opening, the sliding groove being located above the opening and communicating with the dust collection chamber. The sliding rod is slidably installed within the sliding groove. One end of the connecting block is fixedly connected to the sliding rod, and the other end extends out of the sliding groove and connects to the insert block. The dust collection box has an insertion hole corresponding to the insert block; the insert block is inserted into or moved away from the insertion hole by moving the sliding rod vertically along the sliding groove.

[0009] As a further improvement of this utility model, a spring is provided inside the sliding groove, one end of the spring is fixed to the sliding groove, and the other end is fixedly connected to the sliding rod; the sliding rod can move along the vertical direction of the sliding groove under the elastic force of the spring.

[0010] As a further improvement of this utility model, the side wall of the pipe is also provided with a limiting hole, which is connected to the sliding groove, and the connecting block passes through the limiting hole and connects with the insertion block.

[0011] As a further improvement of this utility model, a connecting rod is provided between the connecting block and the insert block, and the connecting rod is fixed horizontally on the connecting block; there are multiple insert blocks, and the multiple insert blocks are fixed at intervals along the horizontal direction on the bottom surface of the connecting rod, and the dust collection box is provided with multiple insertion holes corresponding to the insert blocks.

[0012] As a further improvement of this utility model, the sliding rod includes a sliding rod body and a limiting block, with the limiting block fixed to the sliding rod body. One end of the spring is fixed to the top of the sliding groove, and the other end of the spring is sleeved on the outside of the sliding rod body and fixedly connected to the limiting block.

[0013] As a further improvement of this utility model, the connecting block is a convex block, and the connecting block is fixed to the bottom of the sliding rod body.

[0014] As a further improvement of this utility model, the dust suction port is a funnel-shaped structure with the opening facing downwards.

[0015] As a further improvement of this utility model, the dust suction port and the pipe are either an integrated structure or a separate structure.

[0016] The technical solution provided by this utility model has the following beneficial effects:

[0017] (1) The magnesium oxide rotary kiln of this utility model, by setting a dust collection box and a filter screen on the pipeline, can remove solid particles in the flue gas, preventing solid particles in the flue gas from entering the vacuum cleaner body and causing blockage. Specifically: In this embodiment, the dust collection box is set on the side of the filter screen near the suction port, with the right side of the filter screen flush with the left side of the dust collection box. The filter screen can filter solid particles in the flue gas entering the pipeline, so that most of the solid particles in the flue gas can remain on the right side of the filter screen, and the solid particles on the right side of the filter screen can fall into the dust collection box under the influence of gravity, thereby achieving the filtration and unified collection of solid particles in the flue gas, so that solid particles in the flue gas in the pipeline will not enter the vacuum cleaner body, thus achieving the removal of flue gas in the flue chamber by the vacuum cleaner while preventing solid particles in the flue gas from clogging the vacuum cleaner and causing damage, thereby improving the service life of the vacuum cleaner.

[0018] (2) The magnesium oxide rotary kiln of this utility model has a locking component. The locking component has a clever structural design, which can not only lock the dust storage box in a simple and quick way, but also make the baffle of the dust storage box tightly abut against the side wall of the pipe, thereby sealing the opening of the dust storage chamber and improving the sealing between the dust storage box and the dust storage chamber. Attached Figure Description

[0019] Figure 1 A perspective view of the magnesium oxide rotary kiln provided by this utility model.

[0020] Figure 2 A top view of the magnesium oxide rotary kiln provided by this utility model.

[0021] Figure 3 This utility model Figure 2 Sectional view along the middle AA.

[0022] Figure 4 This is an enlarged structural diagram of the connection between the suction pipe and the smoke chamber in this utility model.

[0023] Figure 5 This is a top view of the dust suction pipe connected to the smoke chamber in this utility model.

[0024] Figure 6 This utility model Figure 5 Enlarged cross-sectional view at the middle section BB.

[0025] Figure 7 This is a schematic diagram of the structure when the locking block of the present invention is aligned with the insertion hole of the dust collection box.

[0026] Figure 8 This is a schematic diagram of the locking component in this utility model.

[0027] The following are marked in the diagram: 1. Rotary kiln body; 2. Smoke chamber; 3. Dust suction pipe; 31. Dust suction port; 32. Pipe; 321. Mounting plate; 322. Sliding groove; 33. Filter screen; 34. Dust collection box; 341. Insertion hole; 351. Sliding rod; 352. Connecting block; 353. Insertion block; 354. Spring; 355. Limiting hole; 356. Connecting rod; 357. Limiting block. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0029] This embodiment provides a magnesium oxide rotary kiln; please refer to [reference needed]. Figures 1 to 3 It includes a rotary kiln body 1, a smoke chamber 2, and a dust collector. The rotary kiln body 1 is used for calcining magnesium oxide. The kiln tail of the rotary kiln body 1 is connected to the smoke chamber 2, so that all the flue gas generated by calcination in the rotary kiln body 1 can enter the smoke chamber 2. The dust collector is connected to the smoke chamber 2 and is used to remove the flue gas in the smoke chamber 2.

[0030] Please refer to Figure 3 and Figure 4The vacuum cleaner includes a vacuum cleaner body and a suction hose 3, with the vacuum cleaner body located outside the smoke chamber 2. One end of the suction hose 3 is inserted into the smoke chamber 2, and the other end is connected to the vacuum cleaner body. The suction hose 3 has an L-shaped structure and includes a suction port 31 and a horizontally arranged pipe 32. The suction port 31 is inserted into the smoke chamber 2, one end of the pipe 32 is connected to the suction port 31, and the other end is connected to the vacuum cleaner body. The horizontally arranged pipe 32 and the suction port 31 form an L-shaped suction hose 3. The pipe 32 is equipped with a dust collection box 34 and a filter screen 33. The filter screen 33 is vertically installed inside the pipe 32 and filters solid particles in the smoke drawn in by the suction port 31. The filtered solid particles fall into the dust collection box 34 under the influence of gravity. Therefore, in this embodiment, by providing a dust collection box 34 and a filter screen 33 on the pipe 32, solid particles in the flue gas can be removed, preventing them from entering the vacuum cleaner body and causing blockage. The dust collection box 34 is detachably installed at the bottom of the pipe 32, facilitating the removal of the collected solid particles from the bottom of the pipe 32. It also allows for quick removal and cleaning of the dust collection box 34 when cleaning is needed, followed by reinstallation on the pipe 32. The dust collection box 34 is positioned on the filter screen 33 near the suction port 31, with the right side of the filter screen 33 flush with the left side of the dust collection box 34. The filter screen 33 can filter solid particles in the flue gas entering the pipe 32, so that most of the solid particles in the flue gas can remain on the right side of the filter screen 33. The solid particles on the right side of the filter screen 33 can fall into the dust collection box 34 under the influence of gravity. This achieves the filtration and unified collection of solid particles in the flue gas, so that solid particles in the flue gas in the pipe 32 will not enter the vacuum cleaner body. This allows the vacuum cleaner to remove the flue gas in the smoke chamber 2 while avoiding the solid particles in the flue gas clogging the vacuum cleaner and causing damage, thus improving the service life of the vacuum cleaner.

[0031] The vacuum cleaner body is equipped with a fan, which creates negative pressure at the suction port 31. Under the action of negative pressure, the smoke in the smoke chamber 2 can enter the pipe 32 through the suction port 31. In the horizontally arranged pipe 32, due to the obstruction of the filter screen 33 and the influence of gravity, the solid particles in the smoke will be deposited at the bottom of the pipe 32.

[0032] Understandably, please refer to Figure 5 and Figure 6The cross-section of the pipe 32 can be rectangular. Multiple mounting plates 321 are vertically arranged on the bottom surface of the pipe 32, forming an open dust storage chamber. The dust storage chamber is connected to the pipe 32, and a dust collection box 34 is slidably installed within it. In this embodiment, the mounting plate 321 may include three mounting side plates and one mounting base plate. The three mounting side plates are sequentially connected to form a side wall, and the other mounting base plate is located at the bottom of the three mounting side plates, so that the four mounting plates 321 form an open dust storage chamber. The structure of the dust collection box 34 matches the structure of the dust storage chamber, allowing it to be inserted into the dust storage chamber through the opening and move within it. A locking member is provided on the pipe 32 to fix the dust collection box 34 within the dust storage chamber.

[0033] In this embodiment, the top surface of the pipe 32 may be provided with a slot for installing a filter screen 33. The filter screen 33 inserted into the slot can be fixed to the pipe 32 with bolts. By setting the filter screen 33 in the above-mentioned detachable manner, it is convenient to quickly disassemble, clean, or replace the filter screen 33 in actual application.

[0034] In this embodiment, when the dust collection box 34 is fully inserted into the dust collection chamber, the dust collection box 34 can seal the opening of the dust collection chamber, so that the dust collection chamber is isolated from the outside world except for its connection with the pipe 32. This ensures the airtightness of the entire pipe 32 and enables the absorption of flue gas in the smoke chamber 2 through the dust collection port.

[0035] In this embodiment, the dust collection box 34 can be a rectangular structure. The dust collection box 34 may include a bottom plate, two side plates, and a baffle. The two side plates are respectively vertically fixed to the two sides of the baffle, and the bottom plate is located at the bottom of the side plates and the baffle. The two mounting side plates opposite to the side plates are respectively provided with sliding grooves, and the two side plates are respectively inserted into the sliding grooves. This allows the dust collection box 34 to move back and forth within the dust collection chamber through the cooperation of the side plates and sliding grooves. At the same time, the above structure also allows the dust collection box 34 to be quickly inserted into or removed from the dust collection chamber.

[0036] Furthermore, a handle is provided on the outside of the baffle of the dust collection box 34, which can be used to move the dust collection box 34 within the sliding groove 322.

[0037] Please refer to Figures 6 to 8The locking mechanism includes a sliding rod 351, a connecting block 352, and at least one insert block 353. A sliding groove 322 is vertically provided on the side wall of the pipe 32 on the opening side, positioned above the opening and communicating with the dust collection chamber. The sliding rod 351 is slidably installed within the sliding groove 322. One end of the connecting block 352 is fixedly connected to the sliding rod 351, and the other end of the connecting rod 352 extends out of the sliding groove 322 and connects to the insert block 353. The outer side of the baffle of the dust collection box 34 has an insertion hole 341 corresponding to the insert block 353. The insert block 353 can be inserted into or moved away from the insertion hole 341 by moving the sliding rod 351 vertically along the sliding groove 322.

[0038] It is understood that in this embodiment, since one end of the connecting block 352 needs to extend out of the sliding groove 322, a limiting hole 355 is also required on the side wall of the pipe 32 in the actual design. The limiting hole 355 is located at the end near the opening and is connected to the sliding groove 322. By setting the limiting hole 355, the connecting block 352 can pass through the limiting hole 355 and connect with the insert block 353.

[0039] In practical use, by moving the sliding rod 351 upwards, the insert block 353 is moved away from the insertion hole 341, allowing the dust collection box 34 to be pulled out of the dust collection chamber via the handle, thus emptying the solid particles collected in the dust collection box 34. When it is necessary to collect solid particles in the flue gas, the dust collection box 34 can be installed in the dust collection chamber, and then the sliding rod 351 can be moved downwards to drive the insert block 353 into the insertion hole 341, thereby fixing the dust collection box 34 in the dust collection chamber through the cooperation of the locking member and the insertion hole 341. It can be understood that in this embodiment, the locking member is cleverly designed, which not only enables simple and quick locking of the dust collection box 34, but also allows the baffle of the dust collection box 34 to tightly abut against the side wall of the pipe 32, thereby sealing the opening of the dust collection chamber and improving the sealing performance between the dust collection box 34 and the dust collection chamber.

[0040] Understandably, please refer to Figure 7 and Figure 8The sliding rod 351 may also include a sliding rod body and a limiting block 357. A connecting block 352 is fixed to the bottom of the sliding rod body, and the limiting block 357 is fixed to the sliding body. A spring 354 may also be installed in the sliding groove 322. One end of the spring 354 is fixed to the top of the sliding groove 322, and the other end of the spring 354 is sleeved on the outside of the sliding rod body and fixed to the limiting block 357. In this embodiment, when the insert 353 is inserted into the socket 341, the spring 354 is in a compressed state. This setting allows the spring 354 to generate a downward pushing force on the insert 353 through the sliding rod 351, thereby improving the stability of the insert 353 inserted into the socket 341 and further improving the locking effect of the locking member. When it is necessary to open the locking member, simply push the connecting block 352 upward. The connecting block 352 will drive the insert 353 and the sliding rod 351 to move upward, thereby moving the insert 353 away from the socket 341. When the insert block 353 is completely away from the socket 341, the locking element loses its locking effect on the dust collection box 34. When the dust collection box 34 is fully installed in the dust collection chamber, the socket 341 on the dust collection box 34 is aligned with the insert block 353. At this time, releasing the upward-pushing connecting block 352 will cause the insert block 353 to move downward and insert into the socket 341 through the sliding rod 351 under the elastic force of the spring 354, thereby achieving the purpose of locking the dust collection box 34.

[0041] In this embodiment, please refer to Figure 8 A connecting rod 356 may also be provided between the connecting block 352 and the insert block 353. The connecting rod 356 is horizontally fixed to the connecting block 352 and is symmetrically arranged with respect to the connecting block 352. Multiple insert blocks 353 may be provided, and these multiple insert blocks 353 may be evenly spaced along the axial direction of the connecting rod 356. Multiple insertion holes 341 corresponding to the insert blocks 353 may also be provided on the outer side of the baffle of the dust collection box 34. By providing multiple insert blocks 353 and insertion holes 341, the locking effect of the locking component can be further improved.

[0042] Please refer to Figure 8 The connecting block 352 can be a convex block, and it is fixed to the bottom of the sliding rod body. The sliding groove 322 can be a rectangular groove, and the larger diameter rectangle on the convex block matches the sliding groove 322. Setting the connecting block 352 as a convex block can improve the stability of the connecting block 352 sliding in the sliding groove 322.

[0043] The suction port 31 can be a downward-facing funnel-shaped structure. The downward-facing funnel-shaped structure can increase the amount of smoke that the suction port 31 can draw in at one time, thereby improving the efficiency of the vacuum cleaner in handling the smoke in the smoke chamber 2.

[0044] In this embodiment, the pipe 32 and the suction port 31 can be an integrated structure or a separate structure. The appropriate structure can be selected based on the specific application requirements.

[0045] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements 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 magnesium oxide rotary kiln, comprising a rotary kiln body (1), a smoke chamber (2), and a dust collector, characterized in that, The vacuum cleaner includes a vacuum cleaner body and a suction pipe (3) inserted into the smoke chamber (2). The suction pipe (3) has an L-shaped structure and includes a suction port (31) and a horizontally arranged pipe (32). The suction port (31) is inserted into the smoke chamber (2), and the two ends of the pipe (32) are respectively connected to the suction port (31) and the vacuum cleaner body. The pipe (32) is provided with a dust collection box (34) and a filter screen (33). (33) Vertically installed inside the pipe (32) to filter solid particles in the flue gas sucked in by the suction port (31); the dust collection box (34) is detachably installed at the bottom of the pipe (32) and set on the filter screen (33) near the suction port (31); the right side of the filter screen (33) is flush with the left side of the dust collection box (34); solid particles entering the pipe (32) fall into the dust collection box (34) under the influence of gravity.

2. The magnesium oxide rotary kiln as described in claim 1, characterized in that, The cross-section of the pipe (32) is rectangular. The bottom surface of the pipe (32) is vertically downward and has multiple mounting plates (321). The multiple mounting plates (321) form a dust storage chamber. The dust storage chamber is connected to the pipe (32). The dust storage box (34) is slidably installed in the dust storage chamber. The pipe (32) is provided with a locking member. The locking member is used to fix the dust storage box (34) in the dust storage chamber.

3. The magnesium oxide rotary kiln as described in claim 2, characterized in that, The dust storage chamber has a rectangular structure and an opening at one end. The structure of the dust storage box (34) matches the structure of the dust storage chamber. The dust storage box (34) is inserted into the dust storage chamber through the opening and can slide inside the dust storage chamber.

4. The magnesium oxide rotary kiln as described in claim 3, characterized in that, The locking component includes a sliding rod (351), a connecting block (352), and at least one insert block (353). The side wall of the pipe (32) located on the side of the opening is provided with a sliding groove (322) in the vertical direction. The sliding groove (322) is located above the opening and communicates with the dust storage chamber. The sliding rod (351) is slidably installed in the sliding groove (322). One end of the connecting block (352) is fixedly connected to the sliding rod (351), and the other end extends out of the sliding groove (322) and is connected to the insert block (353). The dust storage box (34) is provided with an insertion hole (341) corresponding to the insert block (353). The insert block (353) is inserted into the insertion hole (341) or moved away from the insertion hole (341) by the sliding rod (351) moving in the vertical direction in the sliding groove (322).

5. The magnesium oxide rotary kiln as described in claim 4, characterized in that, A spring (354) is provided inside the sliding groove (322). One end of the spring (354) is fixed to the sliding groove (322), and the other end is fixedly connected to the sliding rod (351). The sliding rod (351) can move along the vertical direction of the sliding groove (322) under the elastic force of the spring (354).

6. The magnesium oxide rotary kiln as described in claim 4, characterized in that, The side wall of the pipe (32) is also provided with a limiting hole (355), the limiting hole (355) is connected to the sliding groove (322), and the connecting block (352) passes through the limiting hole (355) and is connected to the insert block (353).

7. The magnesium oxide rotary kiln as described in claim 6, characterized in that, A connecting rod (356) is provided between the connecting block (352) and the insert block (353), and the connecting rod (356) is fixed horizontally on the connecting block (352); there are multiple insert blocks (353), and multiple insert blocks (353) are fixed at intervals along the horizontal direction on the bottom surface of the connecting rod (356); the dust collection box (34) is provided with multiple insertion holes (341) corresponding to the insert blocks (353).

8. The magnesium oxide rotary kiln as described in claim 5, characterized in that, The sliding rod (351) includes a sliding rod body and a limiting block (357), the limiting block (357) being fixed to the sliding rod body; one end of the spring (354) is fixed to the top of the sliding groove (322), and the other end of the spring (354) is sleeved on the outside of the sliding rod body and fixedly connected to the limiting block (357).

9. The magnesium oxide rotary kiln as described in claim 8, characterized in that, The connecting block (352) is a convex block, and the connecting block (352) is fixed to the bottom of the sliding rod body.

10. The magnesium oxide rotary kiln as described in claim 1, characterized in that, The suction port (31) is a funnel-shaped structure with the opening facing downwards; the suction port (31) and the pipe (32) are either an integral structure or a separate structure.

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