A lime powder suspension calcination device and process

Abstract

The invention provides a lime powder suspension calcining device and a process, belonging to the technical field of flue gas treatment. The lime powder suspension calcining device comprises a calcining furnace body, a flue gas cooler and a flue gas exhaust pipe, wherein the flue gas exhaust pipe is connected to the calcining furnace body through the flue gas cooler, and further comprises: a frame, wherein the frame is horizontally arranged inside the flue gas exhaust pipe and is located above the flue gas inlet, and the frame can be retracted; a filter element, wherein the filter element is mounted on the frame, and when the frame is in an extended state, the filter element is in a taut and expanded state for filtering the flue gas, and when the frame is in a shortened state, the filter element is in a relaxed state for cleaning the filter element; a driving device drives the filter element to swing, seals the flue, and makes the filter element loose, and then by shaking the filter element, dust accumulated on the filter element can be cleaned. The invention avoids the complicated process of disassembling and installing the filter plate, and realizes automatic cleaning of the filter element.

Description

Technical Field

[0001] The invention belongs to the technical field of flue gas treatment, and in particular relates to a lime powder suspension calcining device and process. Background Art

[0002] Powdered lime is also called lime powder. White lime powder is a white powdery substance with calcium carbonate as the main component. It has a wide range of applications. The most common one is used in the construction industry, that is, industrial calcium carbonate. Another is food-grade calcium carbonate, which is widely used as a common calcium supplement. Calcination is an important process in lime powder processing. During the calcination of lime powder, flue gas containing pollutants such as dust, sulfur dioxide, and nitrogen oxides will be produced. These pollutants cause serious pollution to the environment. With the increasingly stringent environmental protection regulations and the improvement of public environmental awareness, lime kiln flue gas treatment technology has become an important research and improvement field in industrial production.

[0003] A Chinese patent with the authorization announcement number CN114345047B discloses a high-efficiency desulfurization pipeline system, including a flue gas pipeline: used to guide the direction of flue gas transportation; a diverter plate: fixedly arranged in the flue gas pipeline, and dividing the space of a part of the length in the flue gas pipeline into two symmetrical filtering channels; a drainage baffle: rotatably installed at one end of the diverter plate facing the air intake direction, the diverter baffle is provided with a rotating shaft rotatably installed at the end of the diverter plate, the rotating shaft is arranged parallel to the diverter plate, and the end of the diverter baffle away from the diverter plate is always in contact with the inner wall of the flue gas pipe; a pair of filter plate groups: perpendicular to the diverter plate and slidably inserted in the filtering channel, and the two filter plate groups are respectively located on both sides of the diverter plate. The present invention has two groups of waste gas drainage channels that are used alternately, and automatically pops up and switches the waste gas drainage channels when the filter plate group is scrapped, so as to achieve the purpose of continuously screening impurities from the waste gas and ensure continuous production at the front end.

[0004] The above technical solution cleverly implements the automatic pop-up mechanism of the dirty filter plate and simplifies the cleaning steps. However, the pop-up filter plate cannot be cleaned, and manual intervention is still required in the filter plate replacement process to install a new filter plate. Especially when dealing with flue gas containing a large amount of dust particles, staff need to remain highly vigilant and replace the new filter plate in time to ensure continuous and efficient operation of the system. If it is not replenished in time, once the spare filter plate is also blocked, it will directly weaken the effective filtering ability of the flue gas and affect the overall treatment effect. Therefore, although this technology avoids the complicated filter plate disassembly process, in a high dust load environment, a more frequent and efficient filter plate replacement strategy still needs to be implemented. Summary of the invention

[0005] The purpose of the present invention is to provide a lime powder suspension calcination device and process, aiming to solve the problem that the high-efficiency desulfurization pipeline system in the prior art cannot automatically clean the filter plate.

[0006] To achieve the above object, the present invention provides the following technical solution: a lime powder suspension calcining device, comprising: a calcining furnace body, a flue gas cooler and a flue gas exhaust pipe, wherein the flue gas exhaust pipe is connected to the calcining furnace body through the flue gas cooler, and further comprising:

[0007] A frame, the frame is horizontally arranged inside the smoke exhaust duct and above the smoke inlet, and the frame can be telescopic;

[0008] A filter element, wherein the filter element is mounted on the frame. When the frame is in an extended state, the filter element is in a tight and expanded state for filtering smoke. When the frame is in a shortened state, the filter element is in a relaxed state for cleaning the filter element.

[0009] A shaking assembly is provided, wherein the shaking assembly can drive the frame to shake when the filter element is in a relaxed state.

[0010] The beneficial effect of the present invention is: when the filter element needs to be cleaned, the frame is flipped and the length of the frame is shortened to make the filter element relaxed, and then the shaking component is started to shake the filter element, so that the dust on the filter element can be shaken off, and the filter element can be automatically cleaned.

[0011] A further technical solution of the present invention is that a waste exhaust chamber is provided inside the smoke exhaust duct, a sealing plate is provided on the side wall of the waste exhaust chamber, and a driving device is provided on the smoke exhaust duct, the driving device can flip one end of the frame to abut against the top of the waste exhaust chamber, and can move the sealing plate to seal the smoke exhaust duct, and the frame can shrink the smoke exhaust duct during the flipping process.

[0012] The effect is that, by providing a waste discharge chamber, the shaken-off dust can fall into the interior of the waste discharge chamber and can be used to process the dust.

[0013] A further technical solution of the present invention is that the two side walls of the smoke exhaust duct are respectively provided with a first guide rail and a second guide rail, and the distances between the two ends of the first guide rail and the second guide rail and the rotation axis of the frame are reduced, wherein the end with a smaller distance from the frame is located at the bottom and close to the waste exhaust chamber, and the movable end of the frame can slide along the first guide rail and the second guide rail.

[0014] The effect is that, by providing the first guide rail and the second guide rail, the length of the frame can be shortened during the turning process of the frame.

[0015] A further technical solution of the present invention is that the frame includes: an outer frame and an inner frame, the inner frame rotates inside the outer frame, and the inner frame can extend and retract simultaneously with the outer frame, the filter is installed on the inner frame, and the shaking assembly is arranged on the outer frame, which can drive the inner frame to perform reciprocating swinging motion relative to the outer frame.

[0016] A further technical solution of the present invention is that the shaking assembly includes a force storage component and an execution component. The force storage component can store force when the movable end of the frame moves along the first guide rail, and release energy when it is at the bottom of the first guide rail, and can be used to drive the execution component to move. The execution component is connected to the inner frame, and when the execution component moves, it can drive the inner frame to swing.

[0017] The effect is that, by providing a shaking component, the filter element can be driven to shake, thereby achieving the effect of cleaning the filter element.

[0018] A further technical solution of the present invention is that the force storage component includes a rotating shaft arranged at the movable end of the outer frame, the rotating shaft is connected to a force storage piece through a sliding sleeve, the end of the force storage piece away from the sliding sleeve is connected to the outer frame, one end of the rotating shaft is connected to a gear, the interior of the first guide rail is provided with a tooth row matching the gear, the depth of the inner wall of the first guide rail gradually becomes shallower from top to bottom, and can push the gear out of the tooth row, and the top of the second guide rail is provided with an inclined surface, so that the gear can engage with the tooth row when it is located above the first guide rail.

[0019] A further technical solution of the present invention is that the actuator includes an eccentric piece, an eccentric portion of the eccentric piece is connected to the side wall of the inner frame, and when the force storage piece releases energy, the rotating shaft can drive the eccentric piece to rotate through a one-way bearing.

[0020] A further technical solution of the present invention is that two frames are mirrored and a baffle is provided between the two frames, and the baffle is located above the middle of the waste discharge chamber. When one of the frames swings to contact the top of one side of the waste discharge chamber, it can push the baffle to contact the top of the other side of the waste discharge chamber.

[0021] The effect is that by setting two mirror images of the frame, the effect of alternating filtering by two filter elements can be achieved.

[0022] A process for a lime powder suspension calcining device comprises the following steps:

[0023] S1, shrink the frame to shorten the length of the frame;

[0024] S2, changing the filter element from a tight state to a relaxed state;

[0025] S3. Shake the filter element by a shaking assembly to clean the filter element.

[0026] The beneficial effect is that by shortening the length of the frame, the filter element becomes loose, and then the filter element is shaken, thereby achieving the effect of cleaning the filter element.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] When the filter element needs to be cleaned, the driving device drives the filter element to swing, seals the flue, and loosens the filter element. The filter element is then shaken to clean the dust accumulated on the filter element. This solution avoids the complicated process of disassembling and installing the filter plate and realizes automatic cleaning of the filter element. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0030] Figure 1 It is a schematic diagram of the installation structure of a specific embodiment of the present invention;

[0031] Figure 2 It is a schematic diagram of the overall structure of a specific embodiment of the present invention;

[0032] Figure 3 It is a schematic diagram of the internal structure of a specific embodiment of the present invention;

[0033] Figure 4 It is a schematic diagram of the framework structure in a specific embodiment of the present invention;

[0034] Figure 5 is an axonometric cross-sectional view of the frame of the present invention;

[0035] Figure 6 It is an exploded schematic diagram of the inner frame and the outer frame in the present invention;

[0036] Figure 7 It is a structural schematic diagram of the shaking component in the present invention;

[0037] Figure 8 is a schematic structural diagram of the first guide rail in the present invention;

[0038] Fig. 9 is a schematic structural diagram of the second guide rail in the present invention;

[0039] Fig.10 for Figure 3 A schematic diagram of the enlarged structure at point A in the middle.

[0040] In the figure: 1. calcining furnace body; 2. flue gas cooler; 3. exhaust pipe; 31. waste discharge chamber; 32. sealing plate; 33. first guide rail; 34. second guide rail; 341. inclined plane; 4. frame; 41. outer frame; 42. inner frame; 43. elastic member; 44. top block; 5. filter element; 6. shaking assembly; 61. force storage member; 611. rotating shaft; 612. sliding sleeve; 613. force storage member; 614. gear; 615. gear row; 62. actuator; 621. eccentric member; 622. one-way bearing; 623. groove; 7. driving device; 8. baffle. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0042] See also Figure 1-Figure 10 The present invention provides the following technical solutions: a lime powder suspension calcining device, comprising: a calcining furnace body 1, a flue gas cooler 2 and a smoke exhaust pipe 3, the smoke exhaust pipe 3 is connected to the calcining furnace body 1 through the flue gas cooler 2, and the flue gas temperature is cooled by the flue gas cooler 2, wherein the calcining furnace body 1 and the flue gas cooler 2 are both prior arts and are not described in detail herein, and also comprises: a frame 4, a filter 5 and a shaking component 6.

[0043] See also Figure 3 and Figure 4 The frame 4 is horizontally arranged inside the smoke exhaust pipe 3 and is located above the smoke inlet. The edge of the frame 4 can contact the inner wall of the smoke exhaust pipe 3. In addition, in order to improve the sealing performance, a rubber pad or other material can be arranged on the outer surface of the frame 4 to prevent smoke from leaking out. In addition, the frame 4 can be telescopic to shorten the length of the frame 4.

[0044] The filter element 5 is installed on the frame 4. The material of the filter element 5 can be glass fiber filter cloth or polyester fiber filter cloth, both of which are resistant to high temperature and have high filtering efficiency. One end of the filter element 5 can be fixed to the fixed end of the frame 4 by means of a buckle, and the other end of the filter element 5 can also be fixed to the movable end of the frame 4 by means of a buckle. When the frame 4 is in an extended state, the filter element 5 can be stretched and stretched to a tight state, so as to filter the smoke. When cleaning the filter element 5, the frame 4 is shortened, so that the two ends of the filter element 5 are close to each other, and the filter element 5 changes from a tight stretched state to a relaxed state, and can be used to clean the filter element 5.

[0045] See also Figure 7The shaking component 6 is a cleaning mechanism for the filter 5. When the shaking component 6 is running, the filter 5 needs to be in a relaxed state. Then the shaking component 6 drives one end of the frame 4 to swing back and forth, thereby driving the filter 5 to shake, and then the dust on the filter 5 can be cleaned by shaking.

[0046] When the filter element 5 needs to be cleaned, the length of the frame 4 is shortened so that the filter element 5 changes from a tight, expanded state to a relaxed state. The frame 4 is then swung back and forth quickly, causing the filter element 5 to vibrate due to the swing of the frame 4, thereby making it easier to shake off the dust on the surface of the filter element 5, thereby achieving the effect of automatically cleaning the filter element 5.

[0047] See also Figure 3 A waste chamber 31 is provided inside the smoke exhaust duct 3. The bottom of the waste chamber 31 penetrates to the bottom of the smoke exhaust duct 3 and is connected to the outside. A collecting bag or other device can be provided at the bottom of the waste chamber 31 to collect and process the discharged dust and other substances. A sealing plate 32 is provided on the outer wall of the waste chamber 31 on the side of the smoke flow. The sealing plate 32 is hinged to the top of the waste chamber 31, and the sealing plate 32 is slightly higher than the waste chamber 31. A driving device 7 is provided on the smoke exhaust duct 3. The driving device 7 is a motor and is installed on the smoke exhaust duct 3 by screws. On, the output end of the driving device 7 is connected to one end of the frame 4, so that the driving device 7 can drive the frame 4 to flip over during operation, and flip the frame 4 to abut against the top of the waste discharge chamber 31. During this process, the movement of the frame 4 can drive the top of the sealing plate 32 to rotate, so that the bottom of the sealing plate 32 moves to the side away from the waste discharge chamber 31, close to the inner wall of the smoke exhaust pipe 3, and blocks the smoke exhaust pipe 3 to avoid smoke leakage when the frame 4 is shortened for cleaning. The frame 4 can also drive the smoke exhaust pipe 3 to shrink during the flipping process.

[0048] When in use, the frame 4 is flipped by the driving device 7, so that the movable end of the frame 4 moves to the top of the waste discharge chamber 31. During the flipping process, the frame 4 can drive the sealing plate 32 to rotate, so that the sealing plate 32 blocks the smoke exhaust pipe 3 to prevent smoke leakage. When the movable end of the frame 4 is flipped to the top of the waste discharge chamber 31, the filter element 5 is shaken by the shaking component 6, so that the shaken dust can be discharged from the waste discharge chamber 31.

[0049] See also Figure 3 , Figure 8 and Fig. 9The two side walls of the smoke exhaust duct 3 are respectively provided with a first guide rail 33 and a second guide rail 34, which are symmetrically arranged and located on both sides of the frame 4. The movable end of the frame 4 is simultaneously located inside the first guide rail 33 and the second guide rail 34 and can move along the first guide rail 33 and the second guide rail 34. The first guide rail 33 and the second guide rail 34 are both arc-shaped, and the distance between the two ends of the first guide rail 33 and the second guide rail 34 and the rotation axis of the frame 4 gradually decreases, wherein the end with a smaller distance from the frame 4 is located at the bottom and close to the waste discharge chamber 31, that is, the distance between the top of the first guide rail 33 and the second guide rail 34 and the rotation axis of the frame 4 is smaller than the distance between the bottom and the rotation axis of the frame 4. When the frame 4 rotates, the movable end of the frame 4 can move along the first guide rail 33 and the second guide rail 34. Since the distances between the top and bottom of the first guide rail 33 and the second guide rail 34 and the rotation axis of the frame 4 are different, the length of the frame 4 is shortened during the flipping process.

[0050] See also Figures 4 to 6 The frame 4 includes: an outer frame 41 and an inner frame 42. Both the outer frame 41 and the inner frame 42 are rectangular. The inner frame 42 rotates in the outer frame 41. In addition, the outer frame 41 and the inner frame 42 have a fixed end and a movable end. The fixed end of the inner frame 42 can rotate on the fixed end of the outer frame 41. The movable end of the inner frame 42 can be retracted and retracted synchronously with the movable end of the outer frame 41. Elastic members 43 are provided on the fixed ends of the inner frame 42 and the outer frame 41. The elastic member 43 is a compression spring, which can be used to push the movable end close to the smoke exhaust pipe 3. The filter 5 is installed on the inner frame 42. The shaking assembly 6 is arranged on the outer frame 41, which can drive the inner frame 42 to perform reciprocating swinging motion relative to the outer frame 41.

[0051] When in use, one end of the inner frame 42 is rotated on the outer frame 41, so that the shaking assembly 6 can drive the inner frame 42 to swing back and forth relative to the outer frame 41, thereby driving the filter element 5 to shake and clean the filter element 5.

[0052] See also Figure 7 The shaking assembly 6 includes a force storage component 61 and an execution component 62. The force storage component 61 can store force when the movable end of the frame 4 moves along the first guide rail 33, and release energy when it is at the bottom of the first guide rail 33, and can be used to drive the execution component 62 to move. The execution component 62 is connected to the inner frame 42. When the execution component 62 moves, it can drive the inner frame 42 to swing;

[0053] See also Figure 7The force storage component 61 includes a rotating shaft 611 arranged at the movable end of the outer frame 41, the rotating shaft 611 is arranged inside the outer frame 41, and a sliding sleeve 612 is sleeved on the rotating shaft 611, the sliding sleeve 612 can slide outside the rotating shaft 611, and can rotate synchronously with the rotating shaft 611, and this effect can be achieved by cooperating with the slider and the slide groove, which will not be repeated here, and a force storage piece 613 is connected to the sliding sleeve 612, and the force storage piece 613 can be a spring or a torsion spring, one end of which is connected to the sliding sleeve 612, and the other end is connected to the outer frame 41, one end of the rotating shaft 611 is fixedly connected to a gear 614, and a tooth row 615 matching the gear 614 is arranged inside the first guide rail 33, when the gear 614 moves along the tooth row 615, it can drive the gear 614 to rotate, and when the gear 614 rotates It can drive the rotating shaft 611 and the sliding sleeve 612 to rotate, thereby achieving the effect of storing force on the force storage member 613. The depth of the inner wall of the first guide rail 33 gradually becomes shallower from top to bottom, which can push the gear 614 to disengage from the tooth row 615. When the gear 614 moves to the bottom of the first guide rail 33, the inner wall of the first guide rail 33 pushes the gear away from the engagement with the tooth row 615. At this time, the rotating shaft 611 is inside the second guide rail 34 and abuts against the inner wall of the second guide rail 34, so that the force storage member 613 can be released and the actuator 62 can be driven to operate. When the rotating shaft 611 resets and moves to the top of the second guide rail 34, the inclined surface 341 set at the top of the second guide rail 34 can push the rotating shaft 611 to slide inside the sliding sleeve 612, and push the gear 614 back to the tooth row 615 and engage with each other.

[0054] When in use, the movable end of the frame 4 moves along the first guide rail 33 and the second guide rail 34. During the movement, the frame 4 can be shortened, and the gear 614 rotates through the tooth row 615. When the gear 614 rotates, it can drive the sleeve 612 to rotate, and at the same time, the force storage member 613 accumulates force. When the gear 614 moves to the bottom of the first guide rail 33 and the second guide rail 34, the side wall of the first guide rail 33 pushes the gear 614 away from the tooth row 615, thereby releasing energy from the force storage member 613 and driving the actuator 62 to operate. Then the frame 4 is reset. When the shaft 611 moves to the top of the first guide rail 33 and the second guide rail 34, the shaft 611 is pushed to move through the inclined surface 341, so that the gear 614 is re-engaged with the tooth row 615.

[0055] See also Figure 7The actuator 62 includes an eccentric piece 621, which has an eccentric column. A groove 623 is arranged on the inner frame 42. The eccentric column can slide inside the groove 623. The eccentric piece 621 is connected to the rotating shaft 611 through a transmission member, so that the rotating shaft 611 can drive the eccentric piece 621 to rotate when it rotates. The transmission member can be a synchronous belt drive or a chain drive. A one-way bearing 622 is arranged between the rotating shaft 611 and the transmission member. When the force storage member 613 releases energy, the rotating shaft 611 can drive the eccentric piece 621 to rotate through the one-way bearing 622. When the force storage member 613 stores energy, the one-way bearing 622 is used to prevent the rotating shaft 611 from driving the eccentric piece 621 to rotate.

[0056] When in use, the force storage member 613 releases energy, drives the eccentric member 621 to rotate through the transmission member, and the eccentric column of the eccentric member 621 slides inside the groove 623, thereby driving the inner frame 42 to swing relative to the outer frame 41. At the same time, the eccentric column of the eccentric member 621 is arranged inside the groove 623, so that when the length of the outer frame 41 is adjusted, the inner frame 42 can be driven to adjust its length at the same time.

[0057] There are two mirror-image frames 4, and a baffle 8 is provided between the two frames 4. The baffle 8 is located above the middle of the waste discharge chamber 31. When one of the frames 4 swings to contact the top of one side of the waste discharge chamber 31, the top block 44 on the frame 4 can push the baffle 8 to contact the top of the other side of the waste discharge chamber 31.

[0058] When in use, when the frame 4 is in the cleaning state, the frame 4 flips over to abut against the top of the waste discharge chamber 31. At this time, the top block 44 can push the baffle 8 to flip, so that the baffle 8 flips over to abut against the inner wall of the waste discharge chamber 31, so that the frame 4 is in a sealed space in the cleaning state, preventing dust particles from falling back into the calcining furnace body 1.

[0059] A process for a lime powder suspension calcining device comprises the following steps:

[0060] S1, shrink the frame 4 to shorten the length of the frame 4;

[0061] S2, changing the filter element 5 from a tight state to a loose state;

[0062] S3. Shake the filter element 5 through the shaking component 6 to clean the filter element 5.

Claims

1. A lime powder suspension calcination device, comprising: A calcining furnace body (1), a flue gas cooler (2) and a smoke exhaust pipe (3), wherein the smoke exhaust pipe (3) is connected to the calcining furnace body (1) via the flue gas cooler (2), and is characterized in that it also includes: A frame (4), the frame (4) being horizontally arranged inside the smoke exhaust duct (3) and located above the smoke inlet, and the frame (4) being capable of being telescopic; A filter element (5), the filter element (5) being mounted on the frame (4); when the frame (4) is in an extended state, the filter element (5) is in a stretched state for filtering smoke; and when the frame (4) is in a shortened state, the filter element (5) is in a relaxed state for cleaning the filter element (5); A shaking component (6), wherein the shaking component (6) is capable of driving the frame (4) to shake when the filter element (5) is in a relaxed state; A waste discharge chamber (31) is provided inside the smoke exhaust duct (3), a sealing plate (32) is provided on the side wall of the waste discharge chamber (31), and a driving device (7) is provided on the smoke exhaust duct (3). The driving device (7) is capable of causing one end of the frame (4) to flip over to abut against the top of the waste discharge chamber (31), and is capable of moving the sealing plate (32) to seal the smoke exhaust duct (3). The frame (4) is capable of causing the smoke exhaust duct (3) to shrink during the flipping process.

2. A lime powder suspension calcination device according to claim 1, characterized in that: The two side walls of the smoke exhaust duct (3) are respectively provided with a first guide rail (33) and a second guide rail (34), and the distance between the two ends of the first guide rail (33) and the second guide rail (34) and the rotation axis of the frame (4) gradually decreases, wherein the end with the smaller distance between the first guide rail (33) and the second guide rail (34) and the rotation axis of the frame (4) is located at the bottom and close to the waste exhaust chamber (31), and the movable end of the frame (4) can slide along the inside of the first guide rail (33) and the second guide rail (34).

3. A lime powder suspension calcination device according to claim 2, characterized in that: The frame (4) comprises an outer frame (41) and an inner frame (42); the inner frame (42) rotates inside the outer frame (41), and the inner frame (42) can follow the outer frame (41) and simultaneously extend and retract; the filter element (5) is mounted on the inner frame (42); the shaking assembly (6) is arranged on the outer frame (41) and can drive the inner frame (42) to perform a reciprocating swinging motion relative to the outer frame (41).

4. A lime powder suspension calcination device according to claim 3, characterized in that: The shaking component (6) comprises a force storage component (61) and an actuator component (62). The force storage component (61) can store force when the movable end of the frame (4) moves along the first guide rail (33), and release energy when it is at the bottom of the first guide rail (33). It can be used to drive the actuator component (62) to move. The actuator component (62) is connected to the inner frame (42). When the actuator component (62) moves, it can drive the inner frame (42) to swing.

5. A lime powder suspension calcination device according to claim 4, characterized in that: The force storage component (61) comprises a rotating shaft (611) arranged at a movable end of the outer frame (41); the rotating shaft (611) is connected to a force storage member (613) via a sliding sleeve (612); one end of the force storage member (613) away from the sliding sleeve (612) is connected to the outer frame (41); one end of the rotating shaft (611) is connected to a gear (614); a tooth row (615) matching the gear (614) is arranged inside the first guide rail (33); the depth of the inner side wall of the first guide rail (33) gradually decreases from top to bottom, so that the gear (614) can be pushed away from the tooth row (615); and a slope (341) is arranged at the top of the second guide rail (34) so ​​that the gear (614) can mesh with the tooth row (615) when located above the first guide rail (33).

6. A lime powder suspension calcination device according to claim 5, characterized in that: The actuator (62) comprises an eccentric piece (621), the eccentric portion of the eccentric piece (621) being connected to the side wall of the inner frame (42), and when the force storage piece (613) releases energy, the rotating shaft (611) can drive the eccentric piece (621) to rotate via the one-way bearing (622).

7. A lime powder suspension calcination device according to claim 1, characterized in that: The frames (4) are provided with two mirror images, and a baffle (8) is provided between the two frames (4). The baffle (8) is located above the middle of the waste discharge chamber (31). When one of the frames (4) swings to contact the top of one side of the waste discharge chamber (31), it can push the baffle (8) to contact the top of the other side of the waste discharge chamber (31).

8. A process for lime powder suspension calcination device according to any one of claims 1 to 7, characterized in that: The following steps are involved: S1, shrinking the frame (4) to shorten the length of the frame (4); S2, changing the filter element (5) from a tight state to a relaxed state; S3, shaking the filter element (5) by means of a shaking assembly (6) to clean the filter element (5).

Images