Process for the calcination of small grain limestone to produce active lime and crushing device

Abstract

The application discloses a kind of small particle limestone calcination production active lime process and crushing device, it is related to active lime processing technical field, solve the technical problem that traditional equipment cannot adjust the material swing amplitude in agglomeration process according to different production needs, including bottom plate, the top end one side of the bottom plate is provided with crushing and conveying mechanism, the top end other side of the bottom plate is provided with balling mechanism.The cooperation of the above mechanism integrates crushing, conveying, balling and other functions, each mechanism works cooperatively, forms coherent production process, reduces the material loss and manual intervention of intermediate link, improves the degree of automation and production efficiency of production.

Description

Technical Field

[0001] This invention relates to the field of active lime processing technology, specifically to a process and crushing device for producing active lime from small-particle limestone by calcination. Background Technology

[0002] Activated lime refers to lime calcined in the range of 920℃-1200℃. Activated lime is an important raw material in metallurgy and is also widely used in flue gas desulfurization and wastewater treatment. In the production process of activated lime, the calcination of limestone is a key step. Before calcining limestone, it needs to be crushed.

[0003] Traditional limestone crushing equipment suffers from numerous problems, such as low crushing efficiency, making it difficult to quickly and accurately crush limestone to the particle size required for calcined quicklime, thus limiting production efficiency; chaotic material conveying after crushing, lacking effective agglomeration and guiding structures, resulting in material dispersion and affecting subsequent processing; and difficulty in agglomerating small limestone particles and lime powder produced from crushing into spheres, as existing equipment struggles to ensure sufficient bonding between the two to form lime spheres with good porosity, leading to uneven heat transfer, long calcination time, low efficiency, and unstable finished product quality. Therefore, there is an urgent need for a new crushing device and process for producing quicklime from small limestone calcination to solve these problems and improve the overall level of quicklime production. Summary of the Invention

[0004] The purpose of this invention is to provide a process and crushing device for producing active lime from small-particle limestone by calcination, in order to solve the following technical problems:

[0005] The amplitude of material shaking during the agglomeration process cannot be adjusted according to different production needs.

[0006] The objective of this invention can be achieved through the following technical solution: a crushing device for producing quicklime from calcined small-particle limestone, comprising a bottom plate, a crushing and conveying mechanism provided on one side of the top of the bottom plate, and a balling mechanism provided on the other side of the top of the bottom plate;

[0007] The ball-forming mechanism includes a holding trough, with spring-loaded legs fixedly connected to the four corners of the bottom of the holding trough. A U-shaped baffle is fixedly connected to the inner wall of the holding trough. Two enclosure doors are slidably connected to the side of the holding trough. Two electric telescopic rods are fixedly connected to the side of each of the two enclosure doors. Fixed heads are fixedly connected to the output ends of the multiple electric telescopic rods. Two fixed frames are fixedly connected to the top of the holding trough. A nozzle is fixedly connected to the center of each fixed frame. A handle is fixedly connected to the center of the front surface of the holding trough. A transmission component is provided at the center of the bottom of the holding trough. The bottom of the spring-loaded legs is fixedly connected to one side of the top of the base plate. The sides of the multiple fixed heads are fixedly connected to the sides of the holding trough. The tops of the two nozzles are connected to an external water source through connecting pipes.

[0008] As a further embodiment of the present invention, a discharge port is provided at the position where the side of the holding trough fits against the enclosure door, and a notch is also provided at the position where the side of the U-shaped baffle fits against the discharge port.

[0009] As a further embodiment of the present invention, the transmission component includes a transmission housing. A second motor is threadedly connected to one side of the top of the transmission housing via a flange. A small gear is rotatably connected to one side of the inner cavity of the transmission housing. A large gear is meshed with the side of the small gear. A transmission rod is rotatably connected to the other side of the top of the transmission housing. A slide rod is slidably connected to the top of the transmission rod. A chuck is fixedly connected to the bottom end of the slide rod. A return spring is sleeved on the outer wall of the slide rod. A first adapter is rotatably connected to the center of the inner cavity of the transmission rod. A second adapter is provided at the front end of the transmission housing. A top rod is rotatably connected to the top of the inner cavity of the second adapter. A spring support rod is fixedly connected to the bottom front end of the outer wall of the top rod. The bottoms of the transmission housing and the second adapter are both fixedly connected to one side of the top of the base plate. The output shaft of the second motor is fixedly connected to the center of the inner cavity of the small gear. The large gear is rotatably connected to the other side of the inner cavity of the transmission housing. The large gear is fixedly connected to the bottom end of the transmission rod. The bottom end of the chuck is engaged with the outer wall of the pin shaft inside the bottom end of the first adapter. The top end of the first adapter is fixedly connected to the center of the bottom of the holding slot.

[0010] As a further embodiment of the present invention, the slide bar is generally arranged in an inverted "L" shape, and the top front end of the slide bar and the top back end of the top bar are on the same central axis.

[0011] As a further embodiment of the present invention, the crushing and conveying mechanism includes a base, a transport shell fixedly connected to the top of the base, a first conveyor belt rotatably connected to the bottom of the inner side of the transport shell, two sets of support plates rotatably connected to the front and rear ends of one side of the first conveyor belt extending from the side of the transport shell, a scraper fixedly connected to the middle of the inner side of one set of support plates near the side of the transport shell, arc-shaped baffles fixedly connected to the front and rear ends of the inner wall of the transport shell, two support rods symmetrically arranged at the front and rear ends of the side of the transport shell, a crushing component provided at the top of the transport shell, a support frame provided on the side of the first conveyor belt, a second conveyor belt rotatably connected to the inner side of the support frame, the base and the support frame both fixedly connected to the top of the base plate, the top of the scraper abutting the bottom end of the outer wall of the first conveyor belt, the inner sides of the two support rods fixedly connected to the outer side of one end of the arc-shaped baffle extending from the side of the transport shell, one end of the second conveyor belt being located at the bottom end of the first conveyor belt, and the other end being located at the top of the balling mechanism.

[0012] As a further embodiment of the present invention, the bottom ends of the two arc-shaped baffles are attached to the top end of the first conveyor belt, and the two arc-shaped baffles are arranged in a figure-eight shape at one end extending from the side of the transport shell.

[0013] As a further embodiment of the present invention, the crushing component includes a top plate, a crushing shell fixedly connected to one side of the top of the top plate, a discharge port at the bottom of the crushing shell, a feeding port at the top of the crushing shell, a first motor fixedly connected to the other side of the top of the top plate, a small pulley fixedly connected to the outer wall of the output shaft at the front end of the first motor, a large pulley rotatably connected to the front surface of the crushing shell, a counterweight wheel rotatably connected to the back of the crushing shell, a transmission belt sleeved on the outer walls of the small pulley and the large pulley, a baffle curtain fixedly connected to the top of the inside of the feeding port, a hammer shaft rotatably connected to the center of the inside of the crushing shell, multiple hammers rotatably connected to the outer wall of the hammer shaft, a screen plate fixedly connected to the top of the inside of the discharge port, the top plate fixedly connected to the top of the transport shell, and the large pulley and the counterweight wheel fixedly connected to the front and rear ends of the hammer shaft, respectively.

[0014] As a further embodiment of the present invention, the inner wall side of the crushing shell and the top of the sieve plate are provided with a plurality of impact plates arranged in a ring array with the hammer shaft as the axis.

[0015] As a further embodiment of the present invention, a feeding port is provided at the position where the top plate connects with the discharge port, and the feeding port is connected to both the discharge port and the transport shell.

[0016] A process for producing quicklime by calcining small-particle limestone, using a crushing device for calcining small-particle limestone, includes the following steps:

[0017] Step 1: Select high-quality limestone as raw material. The limestone should have a high calcium carbonate content and few impurities. Put the selected limestone into the inside of the crusher's conveying mechanism. Through the coordinated work of the crushing components, the limestone can be crushed. The crushed limestone with appropriate particle size and the limestone powder generated during the crushing process are discharged into the inside of the conveying shell.

[0018] Step 2: After the small limestone particles that meet the particle size standard and the limestone powder generated during the crushing process are discharged into the inside of the transport shell, the small limestone particles and the limestone powder generated during the crushing process can fall to the top center of the first conveyor belt through the operation of two symmetrically arranged arc-shaped baffles. Through the cooperation of the first conveyor belt and the second conveyor belt, the small limestone particles and limestone powder can be fed into the pelletizing mechanism.

[0019] Step 3: After the small limestone particles and limestone powder fall into the holding tank of the ball-forming mechanism, the transmission components work together to make the holding tank shake. At the same time as the holding tank shakes, the nozzles mounted on the top of the two fixed frames spray water mist into the inside of the holding tank. As a result, the limestone powder produced during the crushing process adheres to the outer wall of the small limestone particles that meet the particle size specifications after crushing, so that the small limestone particles and limestone powder agglomerate into balls.

[0020] Step 4: After the small limestone particles and limestone powder are agglomerated into balls, the electric telescopic rod drives the enclosure door to slide open, thereby discharging the agglomerated small limestone particles and limestone powder from the holding tank. The discharged lime balls are then placed into the preheater, where the high-temperature exhaust gas from the calcining kiln is used to preheat the limestone and dry the lime balls, improving thermal efficiency. At the same time, the limestone is pre-decomposed before entering the calcining kiln, reducing the burden on the calcining kiln.

[0021] Step 5: The preheated and dried lime balls are put into the calcining kiln and calcined under high temperature conditions. The high temperature generated by burning fuel causes the lime balls to decompose and generate active lime.

[0022] The beneficial effects of this invention are:

[0023] (1) Orderly conveying: In the crushing and conveying mechanism, the arc baffle surrounds and gathers small limestone and powder, so that the material is concentrated at the top center of the first conveyor belt, which facilitates subsequent transportation. The scraper can prevent limestone powder from adhering to the conveyor belt, ensuring smooth conveying.

[0024] (2) Good agglomeration effect: In the ball-forming mechanism, the holding trough shakes under the drive of the transmission component, and at the same time the nozzle sprays water mist, which promotes the agglomeration of small limestone particles and limestone powder into balls, forming lime balls with a porous structure, which is conducive to the rapid and uniform transfer of heat to the interior, shortening the calcination time and improving the overall efficiency.

[0025] (3) Flexible adjustment: The transmission components of the ball-forming mechanism can adjust the support angle of the holding tank, thereby changing its swaying amplitude. It can be flexibly adjusted according to actual needs to achieve the best agglomeration effect.

[0026] (4) Through the cooperation of the above-mentioned mechanisms, the functions of crushing, conveying, and pelletizing are integrated, and the mechanisms work together to form a continuous production process, reducing material loss and manual intervention in intermediate links, and improving the automation level and production efficiency of production. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the connection structure of the crushing device for producing active lime from calcined small-particle limestone according to the present invention;

[0028] Figure 2 This is the present invention. Figure 1 Another isometric connection structure diagram;

[0029] Figure 3 This is the present invention. Figure 1 Schematic diagram of the connection structure of the crushing and conveying mechanism;

[0030] Figure 4 This is the present invention. Figure 3 A schematic diagram of the connection structure of another isometric connection;

[0031] Figure 5 This is the present invention. Figure 3 A cross-sectional view of the connection structure of the fractured component;

[0032] Figure 6 This is the present invention. Figure 2 Schematic diagram of the connection structure of the central ball mechanism;

[0033] Figure 7 This is the present invention. Figure 6 Another isometric connection structure diagram;

[0034] Figure 8 This is the present invention. Figure 6 A schematic diagram of the connection structure of a partial frontal section of the transmission component;

[0035] Figure 9 This is the present invention. Figure 8 A top-view cross-sectional diagram showing the connection structure of the transmission housing, pinion, and gear.

[0036] In the diagram: 1. Base plate; 2. Crushing and conveying mechanism; 201. Base; 202. Transport shell; 203. First conveyor belt; 204. Support plate; 205. Scraper; 206. Arc-shaped baffle; 207. Support rod; 208. Crushing component; 2081. Top plate; 2082. Crushing shell; 2083. Discharge port; 2084. Feed port; 2085. First motor; 2086. Small pulley; 2087. Transmission belt; 2088. Large pulley; 2089. Counterweight wheel; 20810. Baffle curtain; 20811. Hammer shaft; 20812. Hammer head; 20813. Screen plate; 209. Support frame; 2 10. Second conveyor belt; 3. Ball-forming mechanism; 301. Holding trough; 302. Spring support leg; 303. U-shaped baffle; 304. Enclosure door; 305. Electric telescopic rod; 306. Fixed head; 307. Fixed frame; 308. Nozzle; 309. Handle; 310. Transmission component; 3101. Transmission housing; 3102. Second motor; 3103. Small gear; 3104. Large gear; 3105. Transmission rod; 3106. Slide rod; 3107. Clamp; 3108. Return spring; 3109. First adapter; 31010. Second adapter; 31011. Top rod; 31012. Spring support rod. Detailed Implementation

[0037] 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.

[0038] Example 1, please refer to Figures 1-5 As shown, the present invention is a crushing device for calcining small-particle limestone to produce active lime, including a base plate 1, which supports a crushing and conveying mechanism 2 and a pelletizing mechanism 3. The crushing and conveying mechanism 2 is provided on one side of the top of the base plate 1. The crushing and conveying mechanism 2 is used to crush limestone and can transport small-particle limestone that meets the particle size specifications and lime powder generated during crushing together to the interior of the pelletizing mechanism 3. The pelletizing mechanism 3 is provided on the other side of the top of the base plate 1. The pelletizing mechanism 3 is used to agglomerate the small-particle limestone that meets the particle size specifications after crushing and limestone powder together to form lime balls. A void structure is formed between the balls, so that heat can be transferred to the interior more quickly and evenly, shortening the calcination time and improving the overall efficiency.

[0039] The crushing and conveying mechanism 2 includes a base 201, which supports the transport shell 202. The transport shell 202 is fixedly connected to the top of the base 201 and supports the first conveyor belt 203. The first conveyor belt 203 is rotatably connected to the bottom of the inner side of the transport shell 202. Both the first conveyor belt 203 and the second conveyor belt 210 are used to transport small limestone particles that meet the particle size standard after crushing and limestone powder generated during the crushing process, and transport them to the pelletizing mechanism 3 to facilitate the agglomeration of small limestone particles and limestone powder into pellets. The first conveyor belt 203 moves from the transport shell... Two sets of support plates 204 are rotatably connected to the front and rear ends of one side extending from the side of the conveyor shell 202. The support plates 204 support the side of the first conveyor belt 203. A scraper 205 is fixedly connected to the inner middle of the set of support plates 204 closest to the side of the conveyor shell 202. The scraper 205 scrapes the outer wall of the first conveyor belt 203 to prevent limestone powder from adhering to it. Arc-shaped baffles 206 are fixedly connected to the front and rear ends of the inner wall of the conveyor shell 202. The arc-shaped baffles 206 surround and contain small particles of limestone and limestone powder fed into the conveyor shell 202. During transportation, the limestone powder is gathered to the center of the top of the first conveyor belt 203. Two support rods 207 are symmetrically arranged at the front and rear ends of the side of the transport shell 202. The support rods 207 are used to support and fix the side of the arc-shaped baffle 206. A crushing component 208 is provided at the top of the transport shell 202 to crush the limestone, ensuring that the crushed limestone meets the standard for calcined active lime. A support frame 209 is provided on the side of the first conveyor belt 203 to support the second conveyor belt 210. The inner... A second conveyor belt 210 is rotatably connected to the side. The second conveyor belt 210 is used to lift and transport the small limestone and lime powder transported from the first conveyor belt 203 to its top to the balling mechanism 3. The base 201 and the support frame 209 are both fixed to the top side of the base plate 1. The top of the scraper 205 is attached to the bottom end of the outer wall of the first conveyor belt 203. The inner side of the two support rods 207 is fixedly connected to the outer side of one end of the arc-shaped baffle 206 extending from the side of the transport shell 202. One end of the second conveyor belt 210 is set at the bottom end of the first conveyor belt 203, and the other end is set at the top of the balling mechanism 3.

[0040] In this embodiment, preferably, the bottom ends of the two arc-shaped baffles 206 are attached to the top end of the first conveyor belt 203, and the two arc-shaped baffles 206 are arranged in a figure-eight shape at one end extending from the side of the transport shell 202. By arranging one end of the two mutually symmetrical arc-shaped baffles 206 in a figure-eight shape, they can be contained when small limestone particles and limestone powder fall onto the first conveyor belt 203. Furthermore, when the first conveyor belt 203 transports small limestone particles and limestone powder, the material at the top of the material can be gathered to the center of the top of the first conveyor belt 203, thereby allowing the material to fall onto the second conveyor belt 210 in a more concentrated manner.

[0041] In this embodiment, preferably, the crushing component 208 includes a top plate 2081. A crushing shell 2082 is fixedly connected to one side of the top of the top plate 2081. The crushing shell 2082 is used to support the large pulley 2088, the counterweight wheel 2089, and the hammer shaft 20811. A discharge port 2083 is opened at the bottom of the crushing shell 2082, which is connected to the transport shell 202. It can feed small limestone particles that meet the particle size specifications after crushing and limestone powder generated during the crushing process into the transport shell 202. A feeding port 2084 is opened at the top of the crushing shell 2082, through which limestone can be fed into the interior of the crushing shell 2082. A first motor 208 is fixedly connected to the other side of the top of the top plate 2081. 5. The first motor 2085 drives the small pulley 2086 to rotate. The small pulley 2086 is fixed to the outer wall of the output shaft at the front end of the first motor 2085. The small pulley 2086 drives the large pulley 2088 to rotate via the transmission belt 2087. The large pulley 2088 is rotatably connected to the front surface of the crushing shell 2082. The large pulley 2088 drives the hammer shaft 20811 to rotate. The counterweight wheel 2089 is rotatably connected to the back of the crushing shell 2082. The counterweight wheel 2089 is used to counterweight the rear end of the hammer shaft 20811, making the hammer shaft 20811 more stable when rotating. The transmission belt 2087 is sleeved on the outer wall of the small pulley 2086 and the large pulley 2088. The transmission belt 2087 is used to drive the small pulley 2086 to rotate. 86 is connected to the large pulley 2088. When the small pulley 2086 rotates, it can synchronously drive the large pulley 2088 to rotate through the transmission belt 2087. A baffle curtain 20810 is fixed to the top of the inside of the feed port 2084. The baffle curtain 20810 is used to block the inside of the discharge port 2083 to prevent limestone fragments from splashing out of the discharge port 2083 when the limestone is hammered and crushed, thereby reducing safety hazards. A hammer shaft 20811 is rotatably connected to the center of the crushing shell 2082. The hammer shaft 20811 is used to drive the hammer head 20812 to rotate. Multiple hammer heads 20812 are rotatably connected to the outer wall of the hammer shaft 20811. The hammer heads 20812 are used to crush the limestone fed into the crushing shell 2082. The stone is hammered to crush it into small limestone particles. A screen plate 20813 is fixedly connected to the top of the discharge port 2083. The screen plate 20813 is used to screen the crushed limestone particles and contain limestone fragments that do not meet the size requirements, thus allowing for continuous crushing until the size meets the requirements before the limestone is discharged through the screen holes inside the screen plate 20813. The top plate 2081 is fixedly connected to the top of the transport shell 202. The top plate 2081 is used to support and fix the crushing shell 2082 and the first motor 2085. The large pulley 2088 and the counterweight wheel 2089 are fixedly connected to the front and rear ends of the hammer shaft 20811, respectively. A feeding port is opened at the position where the top plate 2081 connects to the discharge port 2083.The feeding port is connected to the discharge port 2083 and the transport shell 202, respectively.

[0042] In this embodiment, preferably, several impact plates are arranged in a circular array around the hammer shaft 20811 on the inner wall side of the crushing shell 2082 and the top of the screen plate 20813. The impact plates can enhance the strength of the crushing shell 2082 and also impact the limestone being hammered by the hammer head 20812, thereby enhancing the crushing efficiency of the limestone.

[0043] In summary, when limestone needs to be calcined into active lime, it needs to be crushed into small limestone particles. At this time, the selected limestone raw material is fed into the crushing shell 2082 through the feed port 2084 in the crushing component 208. Simultaneously with the feeding of the limestone raw material, the first motor 2085 starts working, providing power to the small pulley 2086. When the small pulley 2086 rotates, it drives the large pulley 2088 to rotate via the transmission belt 2087, thereby driving the hammer shaft 20811 to rotate inside the crushing shell 2082. During the rotation of the hammer shaft 20811, the hammer head 20812 hammers the limestone fed into the crushing shell 2082, thus crushing the limestone. The limestone is crushed into small particles. Through the operation of the screen plate 20813, the crushed limestone particles can be screened out from the inside of the crushing shell 2082. The limestone particles that do not meet the size requirements will continue to be crushed by the hammer 20812. The limestone particles that meet the size requirements and the limestone powder generated during the crushing process will fall into the inside of the transport shell 202 through the discharge port 2083. Through the cooperation of the first conveyor belt 203 and the arc-shaped baffle 206, the limestone particles that meet the size requirements and the limestone powder generated during the crushing process can be transported together to the second conveyor belt 210. Through the operation of the second conveyor belt 210, it can be transported to the balling mechanism 3.

[0044] Example 2, please refer to Figure 1 , Figure 2 and Figures 6-9As shown, based on Embodiment 1, the pelletizing mechanism 3 includes a holding trough 301 for holding small-particle limestone and limestone powder. Spring legs 302 are fixedly connected to the four corners of the bottom of the holding trough 301 to support it. A U-shaped baffle 303 is fixedly connected to the inner wall of the holding trough 301 to contain the material fed into it, giving the inner wall of the holding trough 301 a certain slope, which can more effectively contain the material. The system allows the small limestone particles and lime powder to slosh inside the container 301. Two enclosure doors 304 are slidably connected to the side of the container 301, enclosing the sides of the container 301. Two electric telescopic rods 305 are fixedly connected to the sides of each enclosure door 304, opening and closing the enclosure doors 304. Fixed heads 306 are fixedly connected to the output ends of the electric telescopic rods 305, controlling their movement. The top of the container 301 is fixed with two fixing brackets 307. The fixing brackets 307 are used to fix and install the nozzles 308. The nozzles 308 are fixed at the center of each fixing bracket 307. The nozzles 308 are used to spray water mist onto the container 301 to wet the outer wall of the small limestone particles, thereby promoting the agglomeration of the small limestone particles and lime powder into balls. A handle 309 is fixed at the center of the front surface of the container 301. By fixing the handle 309 to the front surface of the container 301, it is convenient to handle the container. The support angle of the trough 301 is adjustable. A transmission component 310 is provided at the bottom center of the trough 301. The transmission component 310 is used to drive the trough 301 to shake and can adjust the support angle of the trough 301, thereby changing the shaking amplitude of the trough 301. The bottom end of the spring support leg 302 is fixed to one side of the top of the base plate 1. The sides of multiple fixing heads 306 are fixedly connected to the sides of the trough 301. The tops of the two nozzles 308 are connected to the external water source through connecting pipes.

[0045] In this embodiment, preferably, a discharge port is provided at the position where the side of the holding trough 301 is in contact with the enclosure door 304, and a notch is also provided at the position where the side of the U-shaped baffle 303 is in contact with the discharge port, for discharging the material that has agglomerated into lime balls.

[0046] In this embodiment, preferably, the transmission component 310 includes a transmission housing 3101, which supports the pinion 3103 and the large gear 3104. A second motor 3102 is threadedly connected to one side of the top of the transmission housing 3101 via a flange. The second motor 3102 drives the pinion 3103 to rotate. The pinion 3103 is rotatably connected to one side of the inner side of the transmission housing 3101, and drives the large gear 3104 to rotate. The side of the pinion 3103 is meshed with the large gear 3104, and the large gear 3104 drives the transmission rod. 3105 rotates, and a transmission rod 3105 is rotatably connected to the other side of the top of the transmission housing 3101. The transmission rod 3105 drives the first adapter 3109 to rotate. A slide rod 3106 is slidably connected inside the top of the transmission rod 3105. The slide rod 3106 drives the locking head 3107 to move. The locking head 3107 is fixed to the bottom end of the slide rod 3106. The locking head 3107 is used to lock the top end of the outer wall of the pin on the inner side of the first adapter 3109. A return spring 3108 is sleeved on the outer wall of the slide rod 3106. The return spring 3108 is used to return the slide rod 3106 to its original position. A first adapter 3109 is rotatably connected to the center of the transmission rod 3105. The first adapter 3109 is used to drive the holding tank 301 to shake. A second adapter 31010 is provided at the front end of the transmission housing 3101. The second adapter 31010 is used to support the push rod 31011. The push rod 31011 is rotatably connected to the top inner side of the second adapter 31010. The push rod 31011 is used to push the slide rod 3106 upward. A spring support rod 31012 is fixedly connected to the bottom front end of the outer wall of the push rod 31011. The spring support rod 31012 is used to support the push rod 31011. The outer wall provides support at the front end and can reset the top rod 31011. The bottom of the transmission housing 3101 and the second adapter 31010 are both fixed to one side of the top of the base plate 1. The output shaft of the second motor 3102 is fixedly connected to the center of the small gear 3103. The large gear 3104 is rotatably connected to the other side of the transmission housing 3101. The large gear 3104 is fixedly connected to the bottom end of the transmission rod 3105. The bottom end of the chuck 3107 is engaged with the outer wall of the pin shaft inside the bottom end of the first adapter 3109. The top end of the first adapter 3109 is fixedly connected to the center of the bottom of the holding groove 301.

[0047] In this embodiment, preferably, the slide bar 3106 is arranged in an inverted "L" shape, and the top front end of the slide bar 3106 and the back top end of the top rod 31011 are on the same central axis. When the front end of the top rod 31011 is pressed down, the rear end of the top rod 31011 will tilt upward, thereby lifting the top front end of the slide bar 3106. This allows the slide bar 3106 to drive the locking head 3107 to move upward together, thereby canceling the locking of the first adapter 3109 and allowing the first adapter 3109 to rotate inside the side of the transmission rod 3105, thereby adjusting the support angle of the holding groove 301.

[0048] In summary, after the small limestone particles and limestone powder are fed into the holding trough 301 of the pelletizing mechanism 3, the second motor 3102 in the transmission component 310 starts working. The second motor 3102 drives the small gear 3103 to rotate. Since the small gear 3103 meshes with the large gear 3104, the rotation of the small gear 3103 simultaneously drives the large gear 3104 to rotate synchronously. The rotation of the large gear 3104 drives the transmission rod 3105 to rotate as well, thereby driving the first adapter 3109 to rotate as well. Because the first adapter 3109... Unit 109 is fixedly connected to the holding tank 301. When the transmission rod 3105 drives the first adapter 3109 to rotate, the first adapter 3109 causes the holding tank 301 to shake, thus causing the small limestone particles and limestone powder inside the holding tank 301 to shake as well. Simultaneously, the nozzle 308 sprays water mist into the holding tank 301, wetting the outer wall of the small limestone particles. As the material inside the holding tank 301 shakes, the small limestone particles and limestone powder adhere together and agglomerate into lime balls, facilitating subsequent processing. The lime balls are calcined into active lime. When it is necessary to adjust the shaking amplitude of the holding tank 301, the front end of the push rod 31011 is pressed down. As the front end of the push rod 31011 moves downward, the rear end of the push rod 31011 will tilt upward, thereby lifting the top end of the slide rod 3106 upward. As the slide rod 3106 slides upward, it will drive the locking head 3107 to move upward as well, thereby releasing the locking of the first adapter 3109, allowing the first adapter 3109 to rotate inside the side of the transmission rod 3105. After releasing the locking of the first adapter 3109, hold the holding tank... The handle 309 at the front end of the trough 301 is used to move the trough 301, thereby adjusting the support angle of the trough 301. After adjustment, the pressure on the top rod 31011 is released, and the slide rod 3106 is reset by the operation of the return spring 3108, so that the clamp 3107 is re-clamped onto the first adapter 3109, and the trough 301 is fixed again after the angle is adjusted. Since the support angle of the trough 301 has changed, the sway amplitude of the trough 301 will also change, so the sway amplitude of the trough 301 can be flexibly adjusted.

[0049] Example 3, please refer to Figures 1-9As shown, this embodiment combines Embodiment 1 and Embodiment 2. When processing limestone, the limestone raw material is first fed into the crushing shell 2082 through the feeding port 2084 of the crushing component 208. At this time, the first motor 2085 starts, driving the small pulley 2086 to rotate. The small pulley 2086, through the transmission belt 2087, causes the large pulley 2088 to rotate synchronously, thereby driving the hammer shaft 20811 to rotate within the crushing shell 2082. Multiple hammers 20812 on the hammer shaft 20811 hammer and crush the limestone. The impact plates arranged in a ring array on the inner wall of the crushing shell 2082 and the top of the screen plate 20813 enhance the crushing efficiency of the limestone. The crushed material is screened by the screen plate 20813. Small limestone particles meeting the particle size specifications and the generated limestone powder fall into the transport shell 202 through the discharge port 2083 and the feeding port.

[0050] In the transport casing 202, the first conveyor belt 203 operates, and two arc-shaped baffles 206 with their bottom ends attached to the conveyor belt and one end arranged in a figure-eight shape surround and gather small limestone particles and powder, causing the material to concentrate at the center of the top of the conveyor belt, and then transport it to the second conveyor belt 210. The second conveyor belt 210 then lifts and transports the material to the holding trough 301 of the pelletizing mechanism 3.

[0051] After the material enters the holding tank 301, the second motor 3102 in the transmission component 310 drives the small gear 3103 to rotate, and the large gear 3104 meshing with the small gear 3103 rotates accordingly, thereby driving the transmission rod 3105 and the first adapter 3109 to rotate, causing the holding tank 301 to shake. At the same time, the nozzle 308 sprays water mist onto the holding tank 301, wetting the outer wall of the small limestone particles and promoting their agglomeration with the limestone powder into lime balls. To adjust the swaying amplitude of the holding tank 301, press the front end of the top rod 31011. The rear end of the top rod 31011 will lift up the sliding rod 3106, causing the clamp 3107 to move upwards, thus disengaging the first adapter 3109. At this point, hold the handle 309 and adjust the support angle of the holding tank 301. After adjustment, release the top rod 31011. The return spring 3108 will reset the sliding rod 3106, and the clamp 3107 will re-clamp and fix. The changed support angle will correspondingly change the swaying amplitude of the holding tank 301. Finally, the agglomerated lime balls can be discharged through the discharge port on the side of the holding tank 301 for subsequent calcination into active lime.

[0052] Example 4, please refer to Figures 1-9 As shown, the present invention also provides a process for producing quicklime by calcining small-particle limestone, using a crushing device for producing quicklime by calcining small-particle limestone, and the process for producing quicklime includes the following steps:

[0053] Step 1: Select high-quality limestone as raw material. The limestone should have a high calcium carbonate content and few impurities. Put the selected limestone into the inside of the crusher's conveying mechanism. Through the cooperation of the crushing component 208, the limestone can be crushed. The crushed limestone with appropriate particle size and the limestone powder generated during the crushing process are discharged into the inside of the conveying shell 202.

[0054] Step 2: After the small limestone particles that meet the particle size standard and the limestone powder generated during the crushing process are discharged into the inside of the transport shell 202, the small limestone particles and the limestone powder generated during the crushing process can fall together to the top center of the first conveyor belt 203 through the operation of two symmetrically arranged arc-shaped baffles 206. Through the cooperation of the first conveyor belt 203 and the second conveyor belt 210, the small limestone particles and limestone powder can be fed into the pelletizing mechanism 3.

[0055] Step 3: After the small limestone particles and limestone powder fall into the holding tank 301 of the ball-forming mechanism 3, the transmission component 310 can drive the holding tank 301 to shake. At the same time as the holding tank 301 shakes, the nozzles 308 mounted on the top of the two fixed frames 307 will spray water mist into the interior of the holding tank 301. Thus, during the shaking of the holding tank 301, the limestone powder generated during the crushing process will adhere to the outer wall of the small limestone particles that meet the particle size specifications after crushing, so that the small limestone particles and limestone powder can agglomerate into balls.

[0056] Step 4: After the small limestone particles and limestone powder are agglomerated into balls, the electric telescopic rod 305 drives the enclosure door 304 to slide open, so that the agglomerated small limestone particles and limestone powder can be discharged from the holding tank 301. The discharged lime balls are then put into the preheater. The high-temperature exhaust gas from the calcining kiln is used to preheat the limestone and dry the lime balls, improving thermal efficiency. At the same time, the limestone is pre-decomposed before entering the calcining kiln, reducing the burden on the calcining kiln.

[0057] Step 5: The preheated and dried lime balls are put into the calcining kiln and calcined under high temperature conditions. The high temperature generated by burning fuel causes the lime balls to decompose and generate active lime.

[0058] The foregoing has provided a detailed description of one embodiment of the present invention, but this description is merely a preferred embodiment and should not be construed as limiting the scope of the invention. All equivalent variations and modifications made within the scope of the present invention should still fall within the scope of the present invention.

Claims

1. A crushing device for producing quicklime from calcined small-particle limestone, comprising a bottom plate, characterized in that, A crushing and conveying mechanism is provided on one side of the top of the bottom plate, and a ball-forming mechanism is provided on the other side of the top of the bottom plate. The ball-forming mechanism includes a holding trough, with spring-loaded legs fixedly connected to the four corners of the bottom of the holding trough. A U-shaped baffle is fixedly connected to the inner wall of the holding trough. Two enclosure doors are slidably connected to the side of the holding trough. Two electric telescopic rods are fixedly connected to the side of each of the two enclosure doors. Fixed heads are fixedly connected to the output ends of the multiple electric telescopic rods. Two fixed frames are fixedly connected to the top of the holding trough. A nozzle is fixedly connected to the center of each fixed frame. A handle is fixedly connected to the center of the front surface of the holding trough. A transmission component is provided at the center of the bottom of the holding trough. The bottom of the spring-loaded legs is fixedly connected to one side of the top of the base plate. The sides of the multiple fixed heads are fixedly connected to the sides of the holding trough. The tops of the two nozzles are connected to an external water source through connecting pipes. The crushing and conveying mechanism includes a base, a transport shell fixed to the top of the base, a first conveyor belt rotatably connected to the bottom of the inner side of the transport shell, two sets of support plates rotatably connected to the front and rear ends of one side of the first conveyor belt extending from the side of the transport shell, a scraper fixed to the middle of the inner side of one set of support plates near the side of the transport shell, arc-shaped baffles fixed to the front and rear ends of the inner wall of the transport shell, two support rods symmetrically arranged at the front and rear ends of the side of the transport shell, a crushing component at the top of the transport shell, a support frame on the side of the first conveyor belt, a second conveyor belt rotatably connected to the inner side of the support frame, the base and the support frame both fixed to one side of the top of the base plate, the top of the scraper abutting the bottom end of one side of the outer wall of the first conveyor belt, the inner sides of the two support rods fixedly connected to the outer side of one end of the arc-shaped baffle extending from the side of the transport shell, one end of the second conveyor belt being located at the bottom end of the first conveyor belt, and the other end being located at the top of the balling mechanism.

2. The crushing device for producing active lime from calcined small-particle limestone according to claim 1, characterized in that, The side of the holding trough is provided with a discharge port at the position where it fits against the enclosure door, and the side of the U-shaped baffle is also provided with a notch at the position where it fits against the discharge port.

3. The crushing device for producing active lime from calcined small-particle limestone according to claim 1, characterized in that, The transmission component includes a transmission housing. A second motor is threadedly connected to one side of the top of the transmission housing via a flange. A small gear is rotatably connected to one side of the inner part of the transmission housing. A large gear is meshed with the side of the small gear. A transmission rod is rotatably connected to the other side of the top of the transmission housing. A slide rod is slidably connected to the top of the transmission rod. A clamp is fixedly connected to the bottom end of the slide rod. A return spring is sleeved on the outer wall of the slide rod. A first adapter is rotatably connected to the inner center of the transmission rod. A second adapter is provided at the front end of the transmission housing. A top rod is rotatably connected to the top of the inner side of the second adapter. A spring support rod is fixedly connected to the bottom front end of the outer wall of the top rod. The bottoms of the transmission housing and the second adapter are both fixedly connected to one side of the top of the base plate. The output shaft of the second motor is fixedly connected to the inner center of the small gear. The large gear is rotatably connected to the other side of the inner part of the transmission housing. The large gear is fixedly connected to the bottom end of the transmission rod. The bottom end of the clamp is engaged with the outer wall of the pin shaft inside the bottom end of the first adapter. The top end of the first adapter is fixedly connected to the bottom center of the holding slot.

4. The crushing device for producing active lime from calcined small-particle limestone according to claim 3, characterized in that, The slide bar is generally arranged in an inverted "L" shape, and the top front end of the slide bar and the top back end of the top bar are on the same central axis.

5. The crushing device for producing active lime from calcined small-particle limestone according to claim 1, characterized in that, The bottom ends of the two arc-shaped baffles are attached to the top of the first conveyor belt, and the ends of the two arc-shaped baffles extending from the side of the transport shell are arranged in a figure-eight shape.

6. The crushing device for producing active lime from calcined small-particle limestone according to claim 1, characterized in that, The crushing component includes a top plate, a crushing shell fixedly connected to one side of the top of the top plate, a discharge port at the bottom of the crushing shell, a feeding port at the top of the crushing shell, a first motor fixedly connected to the other side of the top of the top plate, a small pulley fixedly connected to the outer wall of the output shaft at the front end of the first motor, a large pulley rotatably connected to the front surface of the crushing shell, a counterweight wheel rotatably connected to the back of the crushing shell, a transmission belt sleeved on the outer walls of the small pulley and the large pulley, a baffle curtain fixedly connected to the top of the inside of the feeding port, a hammer shaft rotatably connected to the center of the inside of the crushing shell, multiple hammers rotatably connected to the outer wall of the hammer shaft, a screen plate fixedly connected to the top of the inside of the discharge port, the top plate fixedly connected to the top of the transport shell, and the large pulley and the counterweight wheel fixedly connected to the front and rear ends of the hammer shaft, respectively.

7. The crushing device for producing active lime from calcined small-particle limestone according to claim 6, characterized in that, The inner wall side of the crushing shell and the top of the sieve plate are provided with several impact plates arranged in a ring array with the hammer shaft as the axis.

8. A crushing device for producing active lime from calcined small-particle limestone according to claim 6, characterized in that, A feeding port is provided inside the top plate at the location where it connects with the discharge port, and the feeding port is connected to both the discharge port and the transport shell.

9. A process for producing active lime from small-particle limestone by calcination, characterized in that, The crushing apparatus for producing active lime using the calcination of small-particle limestone as described in claim 1 comprises the following steps: Step 1: Select high-quality limestone as raw material. The limestone should have a high calcium carbonate content and few impurities. Put the selected limestone into the inside of the crusher's conveying mechanism. Through the coordinated work of the crushing components, the limestone can be crushed. The crushed limestone with appropriate particle size and the limestone powder generated during the crushing process are discharged into the inside of the conveying shell. Step 2: After the small limestone particles that meet the particle size standard and the limestone powder generated during the crushing process are discharged into the inside of the transport shell, the small limestone particles and the limestone powder generated during the crushing process can fall to the top center of the first conveyor belt through the operation of two symmetrically arranged arc-shaped baffles. Through the cooperation of the first conveyor belt and the second conveyor belt, the small limestone particles and limestone powder can be fed into the pelletizing mechanism. Step 3: After the small limestone particles and limestone powder fall into the holding tank of the ball-forming mechanism, the transmission components work together to make the holding tank shake. At the same time as the holding tank shakes, the nozzles mounted on the top of the two fixed frames spray water mist into the inside of the holding tank. As a result, the limestone powder produced during the crushing process adheres to the outer wall of the small limestone particles that meet the particle size specifications after crushing, so that the small limestone particles and limestone powder agglomerate into balls. Step 4: After the small limestone particles and limestone powder are agglomerated into balls, the electric telescopic rod drives the enclosure door to slide open, thereby discharging the agglomerated small limestone particles and limestone powder from the holding tank. The discharged lime balls are then placed into the preheater, where the high-temperature exhaust gas from the calcining kiln is used to preheat the limestone and dry the lime balls, improving thermal efficiency. At the same time, the limestone is pre-decomposed before entering the calcining kiln, reducing the burden on the calcining kiln. Step 5: The preheated and dried lime balls are put into the calcining kiln and calcined under high temperature conditions. The high temperature generated by burning fuel causes the lime balls to decompose and generate active lime.

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