Kiln heat energy fan for producing microcrystalline ceramic tiles

Abstract

The invention discloses a kiln heat energy fan for producing microcrystalline tiles, and relates to the technical field of kiln fans, the kiln heat energy fan comprises a footstand, a fan shell and an impeller, the fan shell is mounted on the footstand, and the impeller is rotatably mounted on the inner side of the fan shell; an air inlet and an air outlet are formed in the fan shell; a filter is installed on the fan shell and located on an air inlet path of the air inlet. The filter can cool the flue gas of the kiln and intercept particulate matters in the flue gas; through the arrangement of the filter, when flue gas passes through the filter, the high-temperature flue gas is cooled by the filter, and particulate matters existing in the form of gaseous and liquid molten drops in the high-temperature flue gas can be condensed and solidified to form solid particulate matters and are intercepted by the filter; and then the filtered flue gas enters the fan shell to be in contact with the impeller, so that particulate matters in the flue gas can be prevented from being adhered to the surface of the impeller to influence the operation of the impeller.

Description

Technical Field

[0001] This invention relates to the field of kiln blower technology, specifically to a kiln thermal blower used in the production of microcrystalline ceramic tiles. Background Technology

[0002] Due to the unique temperature requirements of kilns used for producing microcrystalline materials—specifically, a high temperature of 600℃ is required upon entering the kiln—the combustion system of microcrystalline kilns has a large number of burners arranged from the kiln entrance to the rear section. This results in a significant amount of flue gas being generated, which also carries a large number of particulate matter. When the exhaust fan is operating, a filter screen needs to be installed at the air inlet to intercept the particulate matter in the flue gas, preventing it from entering the fan and adhering to the fan blades, thus affecting the rotation of the fan blades.

[0003] However, the flue gas temperature in the high-temperature zone (firing zone) of the kiln is between 1000℃ and 1200℃, and the particulate matter in the flue gas exists in the form of molten droplets and gas. Even if the fan blades are made of high-temperature resistant materials, their surface temperature is still much lower than the flue gas temperature inside the kiln. When the gaseous particulate matter in the flue gas passes through the filter and comes into contact with the low-temperature blades, it will condense and adhere to the blades. When the molten droplet-shaped particulate matter comes into contact with the filter, it will condense and easily block the filter holes, making it difficult for the flue gas to be discharged continuously and quickly. Summary of the Invention

[0004] The purpose of this invention is to provide a kiln thermal blower for the production of microcrystalline ceramic tiles, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a kiln thermal blower for producing microcrystalline ceramic tiles, comprising a base, a blower housing, and an impeller, wherein the blower housing is mounted on the base, and the impeller is rotatably mounted inside the blower housing; the blower housing is provided with an air inlet and an air outlet; a filter is installed on the blower housing, and the filter is located in the air inlet path; the filter is capable of cooling the kiln flue gas and intercepting particulate matter in the flue gas.

[0006] As a further embodiment of the present invention, the filter includes: a frame, fixedly connected to the fan housing; a cold air duct, fixedly connected to the frame; a mounting plate, fixedly connected to the frame and located below the cold air duct; two sets of filter units, symmetrically installed in the mounting plate, for intercepting particulate matter in the flue gas; and a drive unit, disposed on the mounting plate and used to drive the filter units to move horizontally, so that the two sets of filter units work in turn.

[0007] As a further embodiment of the present invention, the filtration unit includes: a support base, which is slidably connected to the mounting plate in the horizontal direction; a fixing plate, which is installed at the end of the support base and combined with the support base to form a frame with an internal receiving groove; and a filter plate, which is placed in the receiving groove and fits against the inner wall of the support base and the fixing plate.

[0008] As a further embodiment of the present invention, the driving unit includes: two sliding plates, both horizontally slidably connected to the mounting plate; two springs, one end of which is fixedly connected to the two sliding plates respectively, and the other end of which is fixedly connected to the support base respectively; a locking block, slidably connected to the mounting plate, for limiting the movement of the support base; two wedge-shaped locking blocks, slidably connected to the mounting plate in the vertical direction and respectively used for locking and limiting the two sliding plates; two driving heads, respectively used for driving the corresponding sliding plates to move horizontally; and a monitoring mechanism, disposed on one side of the locking block and used for monitoring the air intake volume in the cold air duct, and driving the locking block to move to release the limitation on the support base after the air intake volume decreases to a specified value.

[0009] As a further embodiment of the present invention, the drive head includes: a traction rope, one end of which is fixedly connected to the slide plate and the other end of which is fixedly connected to a take-up roller; and a motor, which is fixedly connected to the mounting plate and is used to drive the take-up roller to rotate.

[0010] As a further embodiment of the present invention, the monitoring mechanism includes: a switch valve, disposed inside the cold air duct; a telescopic cylinder one, with its fixed end fixedly connected to the cold air duct and its output end fixedly connected to the switch valve; a telescopic cylinder two, with its fixed end fixedly connected to the mounting plate and its output end fixedly connected to the locking block one; and a connecting pipe for connecting the telescopic cylinder one and the telescopic cylinder two.

[0011] As a further embodiment of the present invention, the fixing plate is slidably connected to the support base; the fixing plate is provided with a second locking block on its side, which can limit its movement, and the second locking block is elastically slidably connected to the mounting plate in the vertical direction; the support base is provided with a wedge-shaped push block on its side; the wedge-shaped push block is slidably connected to the mounting plate in the vertical direction; a second traction rope is fixedly connected to the wedge-shaped push block, and the end of the second traction rope away from the wedge-shaped push block is fixedly connected to the second locking block; when the support base moves horizontally, it can drive the wedge-shaped push block to move downward, and the wedge-shaped push block can drive the second locking block to move downward synchronously through the second traction rope; a stepped groove is provided on the side wall of the first locking block near the support base.

[0012] As a further embodiment of the present invention, cover plates are installed on both sides of the top of the mounting plate.

[0013] Compared with the prior art, the beneficial effects of the present invention are: 1. By setting up a filter, the flue gas is cooled by the filter when it passes through the filter. The gaseous and liquid droplets in the flue gas will condense and solidify into solid particles, which are then intercepted by the filter. Only after the flue gas has been filtered will it enter the fan casing and come into contact with the impeller. This can prevent the particles in the flue gas from adhering to the impeller surface and affecting the impeller's operation.

[0014] 2. This invention, through the arrangement of the frame, cold air duct, mounting plate, and drive unit, ensures that when the filter unit located inside the frame becomes severely clogged, the amount of cold air drawn into the cold air duct is significantly reduced. At this time, the drive unit moves another set of filter units temporarily stored on the mounting plate into the frame, while simultaneously moving the severely clogged filter unit out of the frame. Then, the operator can remove the severely clogged filter unit and replace it with a new one. The replacement of the filter units is simple and convenient, and the two sets of filter units can be used alternately, which can greatly improve the exhaust efficiency of the flue gas. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the filter structure of the present invention; Figure 3 This is a cross-sectional view of the filter structure of the present invention; Figure 4 This is a schematic diagram of the filter unit structure of the present invention; Figure 5 This is a schematic diagram of the driving unit structure of the present invention; Figure 6 for Figure 5 Enlarged view of a portion of point A in the middle; Figure 7 This is a cross-sectional schematic diagram of the monitoring mechanism structure of the present invention; Figure 8 for Figure 7 Enlarged view of a section at point B in the middle; Figure 9 This is a schematic diagram of the structure of the second locking block, the wedge-shaped push block, the second traction rope, and the third spring of the present invention; Figure 10 This is a cross-sectional view showing the positional relationship between the second locking block, the fixing plate, the wedge-shaped push block, and the support base of the present invention. Figure 11 This is a schematic diagram of the filter plate of the present invention in a bent state; Figure 12 This is a schematic diagram of the card block structure of the present invention.

[0016] The attached figures are labeled as follows: 1-Foot, 2-Fan housing, 3-Air inlet, 4-Air outlet, 5-Bearing seat, 6-Coupling, 7-Motor, 8-Filter, 9-Frame, 10-Cold air duct, 11-Mounting plate, 12-Cover plate, 13-Support base, 14-Fixing plate, 15-Filter plate, 16-Spring 1, 17-Slide plate, 18-Clamping block 1, 19-Traction rope 1, 20-Take-up roller, 21-Motor, 22-Step groove, 23-Switch valve, 24-Telescopic cylinder 1, 25-Connecting pipe, 26-Telescopic cylinder 2, 27-Clamping block 2, 28-Wedge push block, 29-Traction rope 2, 30-Spring 3, 31-Wedge clamping block, 32-Spring 2, 33-Impeller. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] Please see Figures 1-12 This invention provides a technical solution: a kiln thermal blower for producing microcrystalline ceramic tiles, comprising a base 1, a blower housing 2, a bearing housing 5, a coupling 6, a motor 7, and an impeller 33. The blower housing 2 is mounted on the base 1, and the impeller 33 is rotatably mounted inside the blower housing 2. The blower housing 2 is provided with an air inlet 3 and an air outlet 4. A bearing for supporting the impeller 33 is installed inside the bearing housing 5. The impeller 33 is connected to the output shaft of the motor 7 via the coupling 6. The invention is characterized in that a filter 8 is installed on the blower housing 2, and the filter 8 is located in the air inlet path of the air inlet 3. The filter 8 can cool the kiln flue gas and intercept particulate matter in the flue gas.

[0019] refer to Figure 1 The outer shell of the fan casing 2 is made of ordinary steel Q235-A, and the inner shell is made of 0Cr25Ni20 / 0Cr25Ni20Si2 (310S stainless steel). The insulation layer is made of rock wool with a density of 100Kg and a thickness of 100mm. The impeller 33 has a stainless steel shaft made of 0Cr25Ni20 / 0Cr25Ni20Si2. (310S stainless steel); When installing the fan, seal and fix the air inlet 3 of the fan housing 2 to the kiln exhaust port; the motor 7 can drive the impeller 33 to rotate through the coupling 6. The rotation of the impeller 33 draws out the flue gas in the kiln through the air inlet 3. After the flue gas is filtered by the filter 8, it is discharged from the air outlet 4. When the flue gas passes through the filter 8, the filter 8 cools the high-temperature flue gas. The gaseous and liquid droplets in the high-temperature flue gas will condense and solidify to form solid particles, which are intercepted by the filter 8. Then the filtered flue gas will enter the fan housing 2 and come into contact with the impeller 33, which can prevent the particles in the flue gas from adhering to the surface of the impeller 33 and affecting the operation of the impeller 33.

[0020] Specifically, such as Figure 2 and Figure 3As shown, the filter 8 includes a frame 9, a cold air duct 10, a mounting plate 11, two sets of filter units, and a drive unit. The frame 9 is fixedly connected to the fan housing 2 by bolts and nuts. A sealing ring is provided on the contact surface between the frame 9 and the fan housing 2. The cold air duct 10 is fixedly connected to the frame 9. The mounting plate 11 is fixedly connected to the frame 9 and located below the cold air duct 10. The two sets of filter units are symmetrically installed in the mounting plate 11 to intercept particulate matter in the flue gas. The drive unit is set on the mounting plate 11 and is used to drive the filter units to move horizontally, so that the two sets of filter units work in turn.

[0021] refer to Figure 2 and Figure 3 The end of the cold air duct 10 furthest from the frame 9 is connected to the outside of the kiln. A one-way valve is installed inside the cold air duct 10. When the impeller 33 is working, the inside of the frame 9 is under negative pressure. Cold air is drawn into the frame 9 and mixed with high-temperature flue gas. After the high-temperature flue gas cools down rapidly, the particles that were originally in gaseous and liquid droplet states in the high-temperature flue gas will condense and solidify to form solid particles. When the cooled flue gas flows through the filter unit, the condensed particles in the flue gas are intercepted by the filter unit. When the filter unit located inside the frame 9 is severely blocked, the amount of cold air drawn into the cold air duct 10 is significantly reduced. At this time, the drive unit drives another set of filter units temporarily stored on the mounting plate 11 to move into the frame 9, and at the same time drives the severely blocked filter unit to move outside the frame 9. Then the staff can take out the severely blocked filter unit and replace it with a new filter unit. The replacement of the filter unit is simple and convenient. The two sets of filter units are carried out alternately, which can greatly improve the exhaust efficiency of the flue gas.

[0022] Specifically, such as Figure 4 As shown, the filtration unit includes a support base 13, a fixing plate 14, and a filter plate 15; the support base 13 and the mounting plate 11 are slidably connected in the horizontal direction; the fixing plate 14 is installed at the end of the support base 13 and is combined with the support base 13 to form a frame with an internal receiving groove; the filter plate 15 is placed in the receiving groove and is in contact with the inner wall of the support base 13 and the fixing plate 14.

[0023] refer to Figure 4 The fixing plate 14 and the support base 13 are detachable, allowing for easy cleaning of both. (See reference) Figure 3 The fixed plate 14 and the support base 13 are both set with an "L" shaped cross section. The outline area of ​​the filter plate 15 is equal to the outline area of ​​the receiving groove. The filter plate 15 is placed in the receiving groove formed by the combination of the support base 13 and the fixed plate 14. The filter plate 15 plays the role of intercepting particulate matter in the flue gas. When the filter plate 15 needs to be replaced, the filter plate 15 can be directly taken out from the receiving groove and then the new filter plate 15 can be put into the receiving groove. The replacement of the filter plate 15 can be completed conveniently.

[0024] Specifically, such as Figure 2 , Figure 3 and Figure 5 As shown, the drive unit includes two slide plates 17, two springs 16, a locking block 18, two wedge-shaped locking blocks 31, two drive heads, and a monitoring mechanism. Both slide plates 17 are horizontally slidably connected to the mounting plate 11. One end of each of the two springs 16 is fixedly connected to the two slide plates 17, and the other end is fixedly connected to the support base 13. The locking block 18 is slidably connected to the mounting plate 11 to limit the movement of the support base 13. The two wedge-shaped locking blocks 31 are slidably connected to the mounting plate 11 in the vertical direction and are used to lock and limit the movement of the two slide plates 17. The two drive heads are used to drive the corresponding slide plates 17 to move horizontally. The monitoring mechanism is located on the side of the locking block 18 and is used to monitor the air intake in the cold air duct 10. After the air intake decreases to a specified value, the mechanism drives the locking block 18 to move to release the restriction on the support base 13.

[0025] refer to Figure 2 , Figure 3 and Figure 5 , Figure 5The filter plate 15 on the right side is located inside the frame 9 and is used to intercept particulate matter in the flue gas. The filter plate 15 on the left side is temporarily stored at the left end of the mounting plate 11. The right sliding plate 17 is locked by the wedge-shaped locking block 31. The left wedge-shaped locking block 31 is located above the fixing plate 14. The right spring 16 is in a stretched state, and the left spring 16 is in its natural length. The left end of the locking block 18 limits the right support seat 13, and the right filter unit can stably perform flue gas filtration. When the monitoring mechanism detects that the air intake in the cold air duct 10 has decreased to a certain value... After setting the value, the monitoring mechanism drives the locking block 18 to move outward to cancel the restriction on the right support seat 13. In this embodiment, the two support seats 13 are fixed by bolts. After the right support seat 13 loses the restriction of the locking block 18, the elastic force of the right spring 16 is quickly released. Since the right slide plate 17 is locked by the right wedge-shaped locking block 31, the elastic force of the spring 16 drives the two filter units to move to the right as a whole. Under the action of the left spring 16, the left slide plate 17 moves to the right synchronously with the left filter unit. Until the left filter unit and the right filter unit move to the right side of the mounting plate 11, and the left filter unit moves to the inside of the frame 9, the left drive head drives the left slide plate 17 to move to the left. Since the left support seat 13 is locked by the right end of the locking block 18 at this time, the support seat 13 and the mounting plate 11 remain relatively stationary. The left slide plate 17 drives the left spring 16 to stretch. Until the left wedge-shaped locking block 31 locks the slide plate 17, the slide plate 17 stops moving and remains stationary. Since the drive head can drive the slide plate 17 to move horizontally, but its output Since the end is not self-locking, the slide plate 17 can move freely horizontally as long as the wedge-shaped locking block 31 does not act on the slide plate 17. The drive unit of the present invention, through the setting of spring-16, when the filter plate 15 is severely blocked, the monitoring unit can drive the locking block-18 to release the limit on the support seat 13, the elastic force of spring-16 is released, and the support seat 13 drives the filter plate 15 to move quickly to the outside, so that the temporarily stored filter plate 15 can be quickly moved to the inside of the frame 9 and quickly put into operation for flue gas filtration, thereby improving the flue gas discharge efficiency in the kiln.

[0026] Specifically, such as Figure 2 and Figure 5 As shown, the drive head includes a traction rope 19 and a motor 21; one end of the traction rope 19 is fixedly connected to the slide plate 17, and the other end is fixedly connected to the take-up roller 20; the motor 21 is fixedly connected to the mounting plate 11 and is used to drive the take-up roller 20 to rotate.

[0027] When the motor 21 is working, it can drive the take-up roller 20 to take up the traction rope 19. The end of the traction rope 19 away from the take-up roller 20 can drive the slide plate 17 to move closer to the take-up roller 20. When the traction rope 19 is finished being taken up, the slide plate 17 moves to the outside of the wedge-shaped block 31. The output shaft of the motor 21 is not self-locking and can rotate freely. The take-up roller 20 can rotate freely to release the traction rope 19.

[0028] Specifically, such as Figure 7 and Figure 8 As shown, the monitoring mechanism includes a switch valve 23, a telescopic cylinder 1 24, a telescopic cylinder 26, and a connecting pipe 25; the switch valve 23 is installed inside the cold air duct 10; the fixed end of the telescopic cylinder 1 24 is fixedly connected to the cold air duct 10, and the output end is fixedly connected to the switch valve 23; the fixed end of the telescopic cylinder 26 is fixedly connected to the mounting plate 11, and the output end is fixedly connected to the locking block 18; the connecting pipe 25 is used to connect the telescopic cylinder 1 24 and the telescopic cylinder 26.

[0029] refer to Figure 7 and Figure 8 A return spring is installed inside the telescopic cylinder 24. Figure 8 When the filter plate 15 is not blocked and the flue gas flows smoothly, the air pressure above the filter plate inside the frame 9 is much lower than the atmospheric pressure. Under the action of the pressure difference, the switch valve 23 overcomes the elastic force of the spring 32 and opens to the open position. Figure 8 At the indicated position (when spring 2 32 is in a compressed state), cold air enters the frame 9 and mixes with the high-temperature flue gas; when the filter plate 15 becomes clogged, the amount of gas passing through the filter plate 15 decreases, and the amount of gas entering the cold air duct 10 also decreases accordingly; the pressure difference between the inside and outside of the switch valve 23 decreases; under the elastic force of spring 2 32, the switch valve 23 will move to the right, and the output end of the telescopic cylinder 1 24 will move to the right synchronously, and the hydraulic oil in the telescopic cylinder 1 24 will be pressed into the telescopic cylinder 26 through the connecting pipe 25. The output end of the telescopic cylinder 26 drives the locking block 18 to move to the right; when the filter plate 15 is blocked to a certain extent, the locking block 18 moves to the outside of the support seat 13, releasing the limit on the support seat 13; then the support seat 13 can move under the elastic force of the spring 16; after the filter plate 15 temporarily stored on the left side of the mounting plate 11 moves to the inside of the frame 9, the flue gas can flow smoothly through the filter plate 15, the air pressure inside the frame 9 decreases again, and under the action of the air pressure difference, the switching valve 23 moves again to the outside of the support seat 13. Figure 8 As shown, the locking block 18 moves towards the side closer to the mounting plate 11, and once again limits the support base 13; through the setting of the monitoring mechanism, the monitoring mechanism can detect the degree of blockage of the filter plate 15 according to the air intake of the cold air duct 10.

[0030] Specifically, such as Figure 5 , Figure 6 , Figures 9-12As shown, the fixed plate 14 is slidably connected to the support base 13; the fixed plate 14 is provided with a second locking block 27 on its side, which can limit its movement, and the second locking block 27 is elastically slidably connected to the mounting plate 11 in the vertical direction; the support base 13 is provided with a wedge-shaped push block 28 on its side; the wedge-shaped push block 28 is slidably connected to the mounting plate 11 in the vertical direction; a second traction rope 29 is fixedly connected to the wedge-shaped push block 28, and the end of the second traction rope 29 away from the wedge-shaped push block 28 is fixedly connected to the second locking block 27; when the support base 13 moves horizontally, it can drive the wedge-shaped push block 28 to move downward, and the wedge-shaped push block 28 can drive the second locking block 27 to move downward synchronously through the second traction rope 29; a stepped groove 22 is provided on the side wall of the first locking block 18 near the support base 13.

[0031] refer to Figure 5 , Figure 6 and Figure 12 As shown, the amount of particulate matter intercepted by filter plate 15 increases over time. When blockage occurs, the monitoring mechanism can monitor the blockage status of filter plate 15 in real time, and the locking block 18 slowly moves outwards; as... Figure 6 and Figure 12 As shown, due to the stepped groove 22, after the locking block 18 moves outward a small distance, the support base 13 can move to the right a small distance before being locked by the side wall of the stepped groove 22; the limiting effect of the locking block 18 on the support base 13 completely disappears until the locking block 18 has completely moved to the outside of the support base 13, and only then can the support base 13 move quickly to the right; Reference Figures 9-11 A return spring is fixed on the second card block 27. Figure 9 (Spring 30); When the filter unit is in operation, the filter plate 15 is located inside the frame 9, and the fixing plate 14 is held in place by the locking block 27; therefore, when the locking block 18 begins to move outward and is completely misaligned with the support base 13, the fixing plate 14 remains stationary as the support base 13 moves to the right. Figure 11 As shown, at this time, the support base 13 drives the filter plate 15 to bend and deform upward. When the filter plate 15 is raised, the particles adhering to the top of the filter plate 15 will bounce off, which can alleviate the clogging of the filter plate 15. When the first locking block 18 moves outward and is completely misaligned with the support base 13, the support base 13 drives the second locking block 27 to move downward until it is misaligned with the fixed plate 14 through the wedge-shaped push block 28 and the second traction rope 29. The limiting effect of the second locking block 27 on the fixed plate 14 disappears. Then the support base 13 and the fixed plate 14 can quickly move to the right. Since the support base 13 has already moved a certain distance to the right, the time required for the support base 13 to move out of the frame 9 will be shorter, which can improve the replacement efficiency of the filter unit. Specifically, such as Figure 2 and Figure 3As shown, cover plates 12 are installed on both sides of the top of the mounting plate 11; the cover plates 12 and the mounting plate 11 are detachably connected by means of a snap-fit ​​structure, which makes disassembly and assembly convenient and quick. At the same time, the cover plates 12 can prevent kiln flue gas from escaping from the inside of the mounting plate 11.

[0032] The elastic sliding connection (installation) mentioned above refers to a structure in which parts can automatically return to their original position after sliding, including but not limited to the spring structure shown in the figure.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0034] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A kiln thermal blower for producing microcrystalline ceramic tiles, comprising a base (1), a blower housing (2), and an impeller (33), wherein the blower housing (2) is mounted on the base (1), and the impeller (33) is rotatably mounted inside the blower housing (2); the blower housing (2) is provided with an air inlet (3) and an air outlet (4); characterized in that: A filter (8) is installed on the fan housing (2), and the filter (8) is located on the air intake path of the air inlet (3); the filter (8) can cool the kiln flue gas and intercept particulate matter in the flue gas.

2. The kiln hot air blower for producing microcrystalline ceramic tiles according to claim 1, characterized in that: The filter (8) includes: The frame (9) is fixedly connected to the fan casing (2); The cold air duct (10) is fixedly connected to the frame (9); Mounting plate (11) is fixedly connected to frame (9) and located below cold air duct (10); Two sets of filter units are symmetrically installed in the mounting plate (11) to intercept particulate matter in flue gas; The drive unit is mounted on the mounting plate (11) and is used to drive the filter unit to move horizontally so that the two filter units work in turn.

3. The kiln hot air blower for producing microcrystalline ceramic tiles according to claim 2, characterized in that: The filtering unit includes: The support base (13) is slidably connected to the mounting plate (11) in the horizontal direction; A fixing plate (14) is installed at the end of the support base (13) and combined with the support base (13) to form a frame with an internal receiving groove; The filter plate (15) is placed in the receiving groove and is in contact with the inner wall of the support base (13) and the fixing plate (14).

4. The kiln hot air blower for producing microcrystalline ceramic tiles according to claim 3, characterized in that: The driving unit includes: Both slide plates (17) are horizontally slidably connected to the mounting plate (11); Two springs (16) are fixedly connected at one end to two slide plates (17) respectively, and at the other end to support bases (13) respectively; The first locking block (18) is slidably connected to the mounting plate (11) to restrict the movement of the support base (13); Two wedge-shaped blocks (31) are slidably connected to the mounting plate (11) in the vertical direction and are used to lock and limit the two slide plates (17) respectively; Two drive heads are used to drive the corresponding skateboard (17) to move horizontally; The monitoring mechanism is located on the side of the first card block (18) and is used to monitor the air intake in the cold air duct (10). After the air intake decreases to a specified value, the first card block (18) is driven to move to release the limit on the support base (13).

5. The kiln hot air blower for producing microcrystalline ceramic tiles according to claim 4, characterized in that: The driving head includes: One end of the traction rope (19) is fixedly connected to the slide plate (17), and the other end is fixedly connected to the winding roller (20). The motor (21) is fixedly connected to the mounting plate (11) and is used to drive the winding roller (20) to rotate.

6. The kiln hot air blower for producing microcrystalline ceramic tiles according to claim 4, characterized in that: The monitoring agencies include: A switch valve (23) is installed inside the cold air duct (10); Telescopic cylinder 1 (24) has its fixed end fixedly connected to the cold air pipe (10) and its output end fixedly connected to the switch valve (23); Telescopic cylinder 2 (26) has its fixed end fixedly connected to the mounting plate (11) and its output end fixedly connected to the first card block (18); The connecting pipe (25) is used to connect the first telescopic cylinder (24) and the second telescopic cylinder (26).

7. The kiln hot air blower for producing microcrystalline ceramic tiles according to claim 4, characterized in that: The fixed plate (14) is slidably connected to the support base (13); the fixed plate (14) is provided with a second locking block (27) on its side, which can limit its movement; the second locking block (27) is elastically slidably connected to the mounting plate (11) in the vertical direction; the support base (13) is provided with a wedge-shaped push block (28) on its side; the wedge-shaped push block (28) is slidably connected to the mounting plate (11) in the vertical direction; a second traction rope (29) is fixedly connected to the wedge-shaped push block (28), and the end of the second traction rope (29) away from the wedge-shaped push block (28) is fixedly connected to the second locking block (27); when the support base (13) moves horizontally, it can drive the wedge-shaped push block (28) to move downward, and the wedge-shaped push block (28) can drive the second locking block (27) to move downward synchronously through the second traction rope (29); a stepped groove (22) is provided on the side wall of the first locking block (18) near the support base (13).

8. The kiln hot air blower for producing microcrystalline ceramic tiles according to claim 2, characterized in that: Cover plates (12) are installed on both sides of the top of the mounting plate (11).

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