Energy-saving rotary cement kiln capable of recycling heat

Abstract

The invention relates to the technical field of energy-saving rotary cement kilns, in particular to a heat recycling energy-saving rotary cement kiln which comprises a base, a plurality of rotating devices are rotatably connected to the upper surface of the base, a rotary kiln is rotatably connected between the inner sides of the rotating devices, and a first fixing part is rotatably connected to the outer surface of one end of the rotary kiln in a penetrating mode. The top of the first fixing piece is in through connection with a fan, the top of the fan is in through connection with an air inlet pipe, the end, away from the fan, of the air inlet pipe is in through connection with a sealing box, the end, away from the air inlet pipe, of the sealing box is in through connection with a short pipe, and the other end of the short pipe is in through connection with a feeding piece. When the rodless air cylinder drives the rack to move upwards, the sealing piece at the bottom can be closed, the sealing piece at the top is closed after cement is put in, the cement is preheated through waste heat generated by the rotary kiln, the preheated cement falls into the rotary kiln, and due to the fact that the temperature of the cement is increased, the needed heat is reduced, and the energy consumption is reduced. Therefore, the firing heat consumption of the clinker is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of energy-saving cement rotary kilns, in particular to an energy-saving cement rotary kiln with heat recycling. Background Art

[0002] Cement rotary kiln is a kind of building material equipment, mainly used for calcining cement clinker. It is the main equipment of cement clinker dry and wet production lines. This equipment is mainly used to calcine cement raw materials into cement clinker at high temperature. Cement clinker is the key raw material for making cement, and its quality directly affects the performance of the final cement product. Cement rotary kiln can effectively remove impurities in cement raw materials through its unique rotating structure and high-temperature calcination environment, and make them react chemically to form hard cement clinker.

[0003] Then, the cement rotary kiln will generate a lot of heat during operation. During this process, although the heat can be recovered into the rotary kiln, putting the cement raw material directly into the rotary kiln requires more heat to reach the required calcination temperature, which will cause the exhaust gas temperature of the rotary kiln to be higher and increase energy consumption.

[0004] Therefore, the present invention proposes an energy-saving cement rotary kiln with heat recycling to make up for and improve the shortcomings of the prior art. Summary of the invention

[0005] In view of the defects existing in the prior art, the present invention provides an energy-saving cement rotary kiln with heat recycling, which can effectively solve the above-mentioned technical problems.

[0006] The technical implementation scheme of the present invention is as follows: an energy-saving cement rotary kiln with heat recycling, comprising a base, the upper surface of the base is rotatably connected to a plurality of rotating devices, the inner sides of the rotating devices are rotatably connected to a rotary kiln, the outer surface of one end of the rotary kiln is rotatably connected to a first fixing member, the inner side of the first fixing member is connected to a sieve member, the top of the first fixing member is connected to a fan, the top of the fan is connected to an air inlet pipe, the end of the air inlet pipe away from the fan is connected to a sealing box, the end of the sealing box away from the air inlet pipe is connected to a short pipe, the other end of the short pipe is connected to an inlet pipe. A material piece, one side of the lower surface of the feed piece is rotatably connected to one end of the rotary kiln, a side of the feed piece away from the sealing box is symmetrically opened with a plurality of square holes, the inner sides of the square holes of the feed piece are slidably connected with seals, one side of the seals are threadedly connected with screws, both ends of the screw are rotatably connected with slide rails, one side of the slide rails is fixedly connected to the outer surface of the feed piece, the end of the screw away from the seal is fixedly connected with a gear, the outer surface of the gear at the bottom is meshed with a rack, the side of the rack away from the bottom gear is slidably connected with a rodless cylinder, and one side of the rodless cylinder is fixedly connected to the outer surface of the feed piece.

[0007] More preferably, the square groove formed through the surface of the feed member matches the overall size of the seal, and one end of the seal close to the screw is slidably connected to the inner side of the slide rail.

[0008] More preferably, an air storage part is connected through the inner side of the sealing box, one end of the air storage part is symmetrically slidably fitted with a sealing plate, one end of the sealing plate away from the air storage part is fixedly connected with a sliding part, one end of the sliding part away from the sealing plate is fixedly connected with a wedge block, and the end of the wedge block away from the sliding part is inclined inward.

[0009] More preferably, the inner inclined surfaces of the wedge-shaped blocks are squeezed and matched with one side of the sealing member.

[0010] More preferably, one end of the sealing plate away from the air storage member is fixedly sleeved with a first spring, and one end of the first spring close to the air storage member is fixedly connected to the outer surface of the sealing box.

[0011] More preferably, the outer surface of the sealing plate is slidably connected to the inner side of the sealing box.

[0012] More preferably, the inner side of the feeding member is rotatably connected to a rotating wheel, the outer surface of the rotating wheel frictionally fits against the outer surface of the rotary kiln, the inner side of the rotating wheel is transmission-connected to a belt, the inner transmission of the belt away from the rotating wheel is connected to a transmission member, the outer surface of the transmission member rotates and penetrates one side of the feeding member, the outer surface of the transmission member is rotatably connected to a ventilation pipe, one end of the ventilation pipe away from the transmission member is through-connected to one end of a short tube, and one end of the transmission member away from the belt is through-connected to a first rotating member.

[0013] More preferably, a plurality of air outlet holes are formed through the upper surface of the first rotating member.

[0014] More preferably, the outer surface of the sealing box is symmetrically slidably connected with a locking piece, the locking piece is slidably connected to the outer surface of the sliding piece on a side away from the sealing box, the upper surface of the locking piece is symmetrically rotationally connected to a second rotating piece, the upper surface of the sliding piece is symmetrically fixedly connected to a second fixing piece, the outer surfaces of the second fixing pieces slide through the interior of the locking piece, the top of the other end of the second fixing piece is rotationally connected to the middle part of one side of the second rotating piece, the upper surface of the seal at the top is symmetrically fixedly connected to an extrusion rod, and the end of the extrusion rod away from the seal is extruded and fitted with the outer surface of the second rotating piece.

[0015] More preferably, a second spring is fixedly sleeved on the outer surface of the second fixing member, and the other end of the second spring is fixedly connected to one side of the locking member.

[0016] Compared with the prior art, the present invention has the following advantages:

[0017] 1. The present invention can close the bottom seal when the rack is driven upward by the rodless cylinder, and close the top seal after cement is put in. The cement is preheated by the waste heat generated by the rotary kiln, and the preheated cement falls into the rotary kiln. Since the temperature of the cement has been increased, the required heat is reduced, thereby reducing the heat consumption of clinker burning and saving energy consumption.

[0018] 2. The present invention transports the recovered heat to the air storage member through the air inlet pipe, and then the hot air in the air storage member is sprayed onto the cement raw material, so that the cement inside the feed member can be preheated faster. The fully preheated cement raw material is more likely to reach an ideal chemical reaction state during the calcination process, which is helpful to generate cement clinker with stable quality and high strength. In addition, the reaction speed of the preheated cement raw material in the rotary kiln will be accelerated, thereby shortening the calcination time and improving production efficiency.

[0019] 3. The present invention can drive the first rotating member to stir and preheat the cement in the feeding member when the rotary kiln rotates, so that the cement particles can fully absorb heat, thereby improving the preheating efficiency. The stirring can also promote the heat exchange between the raw material and the hot air, thereby accelerating the preheating speed of the cement raw material.

[0020] 4. The present invention can prevent the gas in the gas storage component from being ejected prematurely by clamping the locking component in the sealed box, so that the gas accumulates in the gas storage component and maintains a certain temperature and pressure, thereby providing stable and sufficient heat for cement pretreatment and avoiding heat loss caused by premature ejection. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0022] Figure 2 It is a schematic diagram of the three-dimensional structure of the base, rotary kiln, rotating device and other components of the present invention.

[0023] Figure 3 This is a sectional view of the three-dimensional structure of the first fixing member, the fan, the feeding member and other components of the present invention.

[0024] Figure 4 It is a schematic diagram of the three-dimensional structure of the sealing member, the slide rail and the rodless cylinder and other components of the present invention.

[0025] Figure 5 It is a schematic diagram of the three-dimensional structure of the screw, rack, gear and other components of the present invention.

[0026] Figure 6 It is a sectional view of the three-dimensional structure of the gas storage component, the sliding component, the wedge block and other components of the present invention.

[0027] Figure 7 It is a schematic diagram of the three-dimensional structure of the sealing member, the sliding member and the wedge block components of the present invention.

[0028] Figure 8 This is a sectional view of the three-dimensional structure of the sealing box, the sliding member, the first spring and other components of the present invention.

[0029] Fig. 9 This is a three-dimensional structural cross-sectional view of the ventilation pipe, the first rotating member, the transmission member and other components of the present invention.

[0030] Fig.10 This is a sectional view of the three-dimensional structure of the locking member, the second rotating member and the second fixing member of the present invention.

[0031] Fig.11 It is a schematic diagram of the three-dimensional structure of the second rotating member, the second fixing member and the second spring member of the present invention.

[0032] Fig.12It is a schematic diagram of the three-dimensional structure of the sealing member, the second rotating member and the extrusion rod component of the present invention.

[0033] The markings of the components in the accompanying drawings are as follows: 1-base, 11-rotary kiln, 12-rotating device, 13-first fixed member, 131-screening member, 14-fan, 15-feeding member, 16-inlet pipe, 161-sealing box, 162-short pipe, 2-sealing member, 21-slide rail, 22-rodless cylinder, 23-screw, 24-rack, 25-gear, 3-air storage member, 31-sliding member, 32-wedge block, 33-first spring, 34-sealing plate, 4-ventilation pipe, 41-first rotating member, 42-transmission member, 43-belt, 431-rotating wheel, 5-locking member, 51-second rotating member, 52-second fixed member, 53-second spring, 54-extrusion rod. DETAILED DESCRIPTION

[0034] 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.

[0035] The present invention will be further described below in conjunction with the embodiments.

[0036] Embodiments of the present invention

[0037] refer to Figures 1 to 5As shown, an energy-saving cement rotary kiln with heat recycling comprises a base 1, the upper surface of the base 1 is rotatably connected with four rotating devices 12, the inner sides of the rotating devices 12 are rotatably connected with a rotary kiln 11, the rotating devices 12 are used to drive the rotary kiln 11 to rotate simultaneously, the outer surface of the left end of the rotary kiln 11 is rotatably connected with a first fixing member 13, the inner side of the first fixing member 13 is connected with a sieve member 131, the sieve member 131 is used to transport the gas inside the rotary kiln 11 to the inside of the first fixing member 13, the top of the first fixing member 13 is connected with a fan 14, the top of the fan 14 is connected with an air inlet pipe 16, the fan 14 is used to The gas inside the first fixing member 13 is transported to the inside of the air inlet pipe 16. The right end of the air inlet pipe 16 is connected with a sealing box 161. The right side of the sealing box 161 is connected with a short tube 162. The air inlet pipe 16 is used to transport the gas from the inside of the sealing box 161 to the inside of the short tube 162. The right end of the short tube 162 is connected with a feed piece 15. The left side of the lower surface of the feed piece 15 is rotatably connected to the right end of the rotary kiln 11. The short tube 162 is used to transport the gas from the inside of the feed piece 15. The right side of the feed piece 15 is symmetrically connected with two square holes. The inner sides of the square holes of the feed piece 15 are slidably connected with seals 2. The surface of the feed piece 15 is connected with The square groove is adapted to the overall size of the seal 2. The seal 2 is used to open and close the interior of the feed piece 15. The left end of the seal 2 is threadedly connected with a screw 23. The screw 23 is used to drive the seal 2 to slide left and right in the square groove of the feed piece 15. Both ends of the screw 23 are rotatably connected with a slide rail 21. The front side of the slide rail 21 is fixedly connected to the outer surface of the feed piece 15. The left end of the seal 2 is slidably connected to the inner side of the slide rail 21. The slide rail 21 is used to limit the left end of the seal 2 from sliding on the inner side of the slide rail 21. The left end of the screw 23 is fixedly connected with a gear 25. The gear 25 is used to drive the screw 23 to rotate simultaneously. The bottom gear 25 A rack 24 is meshed on the outer surface, and the rack 24 is used to drive the gear 25 to rotate. The front side of the rack 24 is slidably connected to a rodless cylinder 22. The right end of the rodless cylinder 22 is fixedly connected to the left side of the feed piece 15. The rodless cylinder 22 is used to drive the rack 24 to move up and down on the inner side of the rodless cylinder 22. When the rack 24 is driven by the rodless cylinder 22 to move upward, the bottom seal 2 can be closed. After the cement is placed in, the top seal 2 is closed, and the cement is preheated by the waste heat generated by the rotary kiln 11. After the preheated raw material enters the rotary kiln 11, its temperature has increased, so the required heat is reduced, thereby reducing the heat consumption of the clinker.

[0038] refer to Figures 6 to 8As shown, an energy-saving cement rotary kiln with heat recycling, the inner side of the sealing box 161 is connected with a gas storage member 3, the gas storage member 3 is used to collect the gas inside the rotary kiln 11, the right end of the gas storage member 3 is symmetrically slidably fitted with a sealing plate 34, the sealing plate 34 is used to seal and block the right end of the gas storage member 3, the end of the sealing plate 34 away from the gas storage member 3 is fixedly connected with a sliding member 31, the sliding member 31 is used to drive the sealing plate 34 to move simultaneously, the outer surface of the sealing plate 34 is slidably connected to the inner side of the sealing box 161, the end of the sealing plate 34 away from the gas storage member 3 is fixedly sleeved with a first spring 33, the end of the first spring 33 close to the gas storage member 3 is fixedly connected to the front and rear sides of the sealing box 161, the first The spring 33 is used to drive the sliding member 31 to reset and move. The right side of the sliding member 31 is fixedly connected with a wedge block 32. The end of the wedge block 32 away from the sliding member 31 is inclined inward. The inner inclined surface of the wedge block 32 is squeezed and matched with the right side of the seal 2. The left side of the seal 2 is used to squeeze the wedge block 32. The wedge block 32 is used to drive the sliding member 31 to move outward. The recovered heat is transported to the air storage member 3 through the air intake pipe 16, and then the heat in the air storage member 3 is sprayed onto the cement raw material, so that the cement inside the feed member 15 can be preheated faster. The fully preheated cement raw material is more likely to reach an ideal chemical reaction state during the calcination process, which is helpful to generate cement clinker with stable quality and high strength.

[0039] refer to Fig. 9 As shown, an energy-saving cement rotary kiln with heat recycling, the left side of the feed member 15 is rotatably connected with a rotating wheel 431, the outer surface of the rotating wheel 431 is frictionally fitted with the outer surface of the rotary kiln 11, the rotary kiln 11 is used to drive the rotating wheel 431 to rotate simultaneously, the inner side of the rotating wheel 431 is connected to the belt 43, the inner side of the belt 43 away from the rotating wheel 431 is connected to the transmission member 42, the rotating wheel 431 is used to drive the transmission member 42 to rotate simultaneously through the belt 43, the outer surface of the right end of the transmission member 42 rotates and penetrates the left side of the feed member 15, the outer surface of the transmission member 42 rotates A ventilation pipe 4 is connected through it, and the left end of the top of the ventilation pipe 4 is connected to the right end of the short tube 162. The ventilation pipe 4 is used to transport the gas inside the short tube 162 to the inner side of the transmission member 42. The end of the transmission member 42 away from the belt 43 is connected to the first rotating member 41. A plurality of air outlets are provided on the upper surface of the first rotating member 41. The first rotating member 41 is used to stir and preheat the cement inside the feeding member 15, so that the cement particles can fully absorb heat, thereby improving the preheating efficiency. Stirring can also promote heat exchange between the raw material and the hot air, thereby accelerating the preheating speed of the cement raw material.

[0040] refer to Figures 10 to 12As shown, an energy-saving cement rotary kiln with heat recycling, a locking member 5 is symmetrically slidably clamped on the right side of the sealing box 161, and the side of the locking member 5 away from the sealing box 161 is slidably connected to the outer surface of the sliding member 31, and the locking member 5 is used to fix the sliding member 31, and the upper surface of the locking member 5 is symmetrically rotated and connected to the second rotating member 51, and the second rotating member 51 is used to drive the locking member 5 to slide to the right, and the upper surface of the sliding member 31 is symmetrically fixedly connected to the second fixing member 52, and the outer surface of the left end of the second fixing member 52 slides through the interior of the locking member 5, and the second fixing member 52 is used to limit the sliding of the locking member 5 on the outer surface of the second fixing member 52, and the second fixing member 52 is rotatably connected to the top of one end of the locking member 5. The second spring 53 is fixedly sleeved on the outer surface of the second fixed member 52 in the middle part of the outer side of the second rotating member 51, and the right end of the second spring 53 is fixedly connected to the right side of the locking member 5. The second spring 53 is used to drive the locking member 5 to reset and move. The upper surface of the top sealing member 2 is symmetrically fixedly connected with an extrusion rod 54. The end of the extrusion rod 54 away from the sealing member 2 is extruded and matched with the outer surface of the second rotating member 51. The extrusion rod 54 is used to squeeze the top of the second rotating member 51. The locking member 5 is clamped in the sealing box 161 to prevent the gas in the gas storage member 3 from being ejected prematurely, so that the gas accumulates in the gas storage member 3 and maintains a certain temperature and pressure, thereby providing stable and sufficient heat for cement pretreatment.

[0041] The complete working principle and steps of the above embodiment are as follows:

[0042] refer to Figures 1 to 5 As shown, when the cement rotary kiln is in the initial state, the fan 14 and the rodless cylinder 22 are in the closed state, the sealing member 2 is slidably connected to the inner side of the square groove of the feed member 15 and is in the open state, and the rack 24 is meshed with the outer surface of the bottom gear 25;

[0043] When the rotary kiln 11 needs to be processed again after processing cement, the rodless cylinder 22 is first started, so that the rodless cylinder 22 drives the rack 24 to slide upward. When the rack 24 slides upward, it drives the bottom gear 25 to rotate. When the bottom gear 25 rotates, it drives the bottom screw 23 to rotate at the same time. As the bottom screw 23 rotates, it can drive the seal 2 on the outer surface of the bottom screw 23 to move leftward, and when the bottom seal 2 moves leftward on the inner side of the square groove of the feed piece 15, it can contact the inner side of the feed piece 15. The bottom of the feed piece 15 is sealed, and the staff can pour the cement raw material into the inner side of the feed piece 15, and the cement will fall into the upper surface of the bottom seal 2. As the rodless cylinder 22 drives the rack 24 to move upward, the rack 24 will mesh with the outer surface of the top gear 25 and drive the top gear 25 to rotate. When the top gear 25 rotates, it will drive the top screw 23 to rotate at the same time, causing the top screw 23 to drive the top seal 2 to move to the left, and the top seal 2 moves to the left on the inner side of the square groove of the feed piece 15. When the rotary kiln 11 is in motion, the sealing member 2 at the top will seal the top of the inner side of the feeding member 15. At this time, the staff will start the fan 14. At this time, the hot air inside the rotary kiln 11 can enter the fan 14 from the inside of the sieving member 131 through the inside of the first fixing member 13, and the fan 14 can pass the hot air from the inside of the air inlet pipe 16 through the sealing box 161 into the inside of the short tube 162. At this time, the short tube 162 can transport the hot air to the inside of the feeding member 15, so that the hot air can preheat the cement inside the feeding member 15. Heat, when the heating is completed, the rodless cylinder 22 is started again, prompting the rodless cylinder 22 to drive the rack 24 to move downward. When the rack 24 moves downward, it sequentially drives the top screw 23 and the bottom screw 23 to rotate in the opposite direction. At this time, the top seal 2 and the bottom seal 2 will move to the right in turn, prompting the preheated cement on the upper surface of the bottom seal 2 to fall into the rotary kiln 11. Since the temperature of the cement has increased, the required heat is reduced, thereby reducing the heat consumption of the clinker burning, and also saving energy consumption.

[0044] refer to Figures 6 to 8 As shown, when the cement rotary kiln is in the initial state, the gas storage member 3 is in a contracted state, the sliding member 31 is in a naturally relaxed state, the wedge block 32 has not yet been attached to the left end of the sealing member 2, and the sealing plate 34 is in a sealing state with respect to the right end of the gas storage member 3;

[0045] As the gas is transported to the inside of the air intake pipe 16, the air intake pipe 16 can transport the gas to the inside of the air storage member 3. Since the right side of the air storage member 3 is sealed and attached to the sealing plate 34, the activation of the inside of the air storage member 3 can cause the air storage member 3 to expand continuously. As the top seal 2 moves to the left, the left end of the top seal 2 touches the inclined surface of the wedge block 32 and causes the wedge block 32 to move outward. When the wedge block 32 moves outward, it drives the sliding member 31 to move at the same time. When the first spring 33 moves outward, The sealing plate 34 is driven to move at the same time, and when the sealing plate 34 moves outward, the first spring 33 is moved into a stretched state, and when the sealing plate 34 moves outward, it will also break away from the seal on the right end of the gas storage member 3. At this time, the gas inside the gas storage member 3 will be transported to the inner side of the feeding member 15 through the short tube 162. At this time, the hot air will be sprayed onto the cement raw material to accelerate the preheating of the cement. The fully preheated cement raw material will more easily reach the ideal chemical reaction state during the calcination process, which is helpful to generate cement clinker with stable quality and high strength.

[0046] After the cement pretreatment is completed, the seal 2 will slide to the right, and the top seal 2 will be separated from the wedge block 32 when sliding to the right. At this time, the first spring 33 in the stretched state will drive the sliding member 31 to slide inward, and when the sliding member 31 slides inward, it will drive the sealing plate 34 to slide at the same time, and when the sealing plate 34 slides inward, it will re-fit the right side of the air storage member 3 for sealing.

[0047] refer to Fig. 9 As shown, as the rotary kiln 11 rotates, the rotating wheel 431 is driven to rotate simultaneously through friction. When the rotating wheel 431 rotates, the belt 43 is driven to rotate simultaneously. The inner side of the top of the belt 43 is rotatably connected to the left end of the transmission member 42. When the belt 43 rotates, the transmission member 42 is driven to rotate simultaneously. When the transmission member 42 rotates, the cement inside the feeding member 15 can be stirred, and the gas inside the short tube 162 can be transported from the inner side of the ventilation pipe 4 to the inside of the first rotating member 41. The upper surface of the first rotating member 41 is provided with a plurality of air outlets. The gas inside the first rotating member 41 is discharged from the air outlets to preheat the cement. At this time, the first rotating member 41 can stir and preheat the cement, so that the cement particles can fully absorb heat, thereby improving the preheating efficiency. In addition, the stirring can promote the heat exchange between the cement raw material and the hot air, thereby accelerating the preheating speed of the cement raw material.

[0048] refer to Figures 10 to 12As shown, as the sealing member 2 moves to the left, the extrusion rod 54 will be driven to move at the same time, and the left side of the extrusion rod 54 will be squeezed and matched with the top of the second rotating member 51. At this time, when the extrusion rod 54 moves to the left, it will fit against the right side of the upper surface of the second rotating member 51 and push the second rotating member 51 to the left. Since the middle part of the outer side of the second rotating member 51 is rotated and connected to the top of the second fixed member 52, as the top of the second rotating member 51 is pushed to the left, the bottom of the second rotating member 51 will drive the locking member 5 to move to the right. At this time, when the outer surface of the sliding member 31 moves to the right, the locking member 5 will move the second spring 53 to a squeezed state, and the inner side of the locking member 5 will be detached from the inner side of the sealing box 161, thereby preventing the sliding member 31 from being blocked by the locking member 5 when driving the sealing plate 34 to move outward.

[0049] When the cement pretreatment is completed, the sealing member 2 will drive the extrusion rod 54 to move to the right, causing the left side of the extrusion rod 54 to break away from the fit with the second rotating member 51. At this time, the second spring 53 in the compressed state will drive the locking member 5 to slide left on the outer surface of the sliding member 31. When the locking member 5 slides to the left, it will also drive the second rotating member 51 to rotate back to the initial state. When the locking member 5 moves to the left, the end of the locking member 5 away from the sliding member 31 will return to the inside of the sealing box 161, thereby preventing the sliding member 31 from moving outward. When the sliding member 31 cannot move outward, the inner side of the sealing plate 34 will be blocked at the right end of the gas storage member 3, which can prevent the gas in the gas storage member 3 from being ejected prematurely, so that the gas accumulates in the gas storage member 3 and maintains a certain temperature and pressure, thereby providing stable and sufficient heat for cement pretreatment, thereby avoiding heat loss caused by premature ejection.

[0050] Although the present disclosure has been shown and described with reference to specific exemplary embodiments of the present disclosure, it should be understood by those skilled in the art that various changes in form and details may be made to the present disclosure without departing from the spirit and scope of the present disclosure as defined by the appended claims and their equivalents. Therefore, the scope of the present disclosure should not be limited to the above-mentioned embodiments, but should be determined not only by the appended claims, but also by the equivalents of the appended claims.

Claims

1. An energy-saving cement rotary kiln with heat recycling, comprising a base (1), a plurality of rotating devices (12) being rotatably connected to the upper surface of the base (1), a rotary kiln (11) being rotatably connected to the inner side of the rotating devices (12), a first fixing member (13) being rotatably connected to the outer surface of one end of the rotary kiln (11), a sieve member (131) being rotatably connected to the inner side of the first fixing member (13), a fan (13) being rotatably connected to the top of the first fixing member (13), and a plurality of rotating devices (12) being rotatably connected to the inner side of the rotary kiln (11). The rotary kiln (11) is a rotary kiln (14), wherein the top of the fan (14) is connected to an air inlet pipe (16), one end of the air inlet pipe (16) away from the fan (14) is connected to a sealing box (161), one end of the sealing box (161) away from the air inlet pipe (16) is connected to a short pipe (162), the other end of the short pipe (162) is connected to a feeding member (15), and one side of the lower surface of the feeding member (15) is rotatably connected to one end of the rotary kiln (11), wherein: A plurality of square holes are symmetrically formed on one side of the feed piece (15) away from the sealing box (161); a seal (2) is slidably connected to the inner side of the square holes of the feed piece (15); a screw (23) is threadedly connected to one side of the seal (2); both ends of the screw (23) are rotatably connected to a slide rail (21); one side of the slide rail (21) is fixedly connected to the outer surface of the feed piece (15); one end of the screw (23) away from the sealing piece (2) is fixedly connected to a gear (25); a rack (24) is meshed on the outer surface of the gear (25) at the bottom; a rodless cylinder (22) is slidably connected to the side of the rack (24) away from the bottom gear (25); one side of the rodless cylinder (22) is fixedly connected to the outer surface of the feed piece (15).

2. The energy-saving cement rotary kiln with heat recycling according to claim 1, characterized in that: The square groove formed through the surface of the feed member (15) matches the overall size of the seal (2), and one end of the seal (2) close to the screw (23) is slidably connected to the inner side of the slide rail (21).

3. The energy-saving cement rotary kiln with heat recycling according to claim 2 is characterized in that: The inner side of the sealing box (161) is connected to an air storage component (3), one end of the air storage component (3) is symmetrically slidably fitted with a sealing plate (34), one end of the sealing plate (34) away from the air storage component (3) is fixedly connected to a sliding component (31), and one end of the sliding component (31) away from the sealing plate (34) is fixedly connected to a wedge block (32), and one end of the wedge block (32) away from the sliding component (31) is inclined inwardly.

4. The energy-saving cement rotary kiln with heat recycling according to claim 3 is characterized in that: The inner inclined surfaces of the wedge-shaped blocks (32) are pressed and matched with one side of the sealing member (2).

5. The energy-saving cement rotary kiln with heat recycling according to claim 4 is characterized in that: The end of the sealing plate (34) away from the air storage member (3) is fixedly sleeved with a first spring (33), and the end of the first spring (33) close to the air storage member (3) is fixedly connected to the outer surface of the sealing box (161).

6. The energy-saving cement rotary kiln with heat recycling according to claim 5 is characterized in that: The outer surface of the sealing plate (34) is slidably connected to the inner side of the sealing box (161).

7. The energy-saving cement rotary kiln with heat recycling according to claim 6 is characterized in that: The inner side of the feeding member (15) is rotatably connected to a rotating wheel (431), the outer surface of the rotating wheel (431) is frictionally fitted to the outer surface of the rotary kiln (11), the inner side of the rotating wheel (431) is transmission-connected to a belt (43), the inner side of the belt (43) away from the rotating wheel (431) is transmission-connected to a transmission member (42), the outer surface of the transmission member (42) is rotationally penetrated through one side of the feeding member (15), the outer surface of the transmission member (42) is rotatably penetrated through a ventilation pipe (4), one end of the ventilation pipe (4) away from the transmission member (42) is through-connected to one end of a short tube (162), and one end of the transmission member (42) away from the belt (43) is through-connected to a first rotating member (41).

8. The energy-saving cement rotary kiln with heat recycling according to claim 7, characterized in that: The upper surface of the first rotating member (41) is provided with a plurality of air outlet holes.

9. The energy-saving cement rotary kiln with heat recycling according to claim 8, characterized in that: The outer surface of the sealing box (161) is symmetrically slidably connected with a locking piece (5); the side of the locking piece (5) away from the sealing box (161) is slidably connected to the outer surface of the sliding piece (31); the upper surface of the locking piece (5) is symmetrically rotatably connected to the second rotating piece (51); the upper surface of the sliding piece (31) is symmetrically fixedly connected to the second fixing piece (52); the outer surface of the second fixing piece (52) slides through the interior of the locking piece (5); the top of the other end of the second fixing piece (52) is rotatably connected to the middle part of one side of the second rotating piece (51); the upper surface of the sealing piece (2) at the top is symmetrically fixedly connected with an extrusion rod (54); the end of the extrusion rod (54) away from the sealing piece (2) is extruded and matched with the outer surface of the second rotating piece (51).

10. The energy-saving cement rotary kiln with heat recycling according to claim 9, characterized in that: The outer surface of the second fixing member (52) is fixedly sleeved with a second spring (53), and the other end of the second spring (53) is fixedly connected to one side of the locking member (5).

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