Dust-raising-proof calcium hydroxide production system

Abstract

The invention discloses a dust-raising-preventing calcium hydroxide production system which comprises crushing equipment, the crushing equipment comprises a crushing bin, a crushing device and a dust-raising-preventing device, a feeding port is formed in the top of the crushing bin, and a filter plate is arranged in the crushing bin; the smashing device comprises a smashing roller assembly arranged in the smashing bin. The dust raising prevention device comprises a dust suction mechanism and a sealing plate assembly, the dust suction mechanism comprises two dust suction hoods, the two dust suction hoods are arranged on the two sides of the upper portion of the feeding port correspondingly and connected with dust suction pipes, and the other ends of the dust suction pipes penetrate through the side wall of the smashing bin and extend into the smashing bin. The sealing plate assembly comprises two movable sealing plates installed at the top of the smashing bin in a sliding mode, and the two movable sealing plates can move towards each other or move away from each other so as to seal or open the feeding port. According to the dust-raising-preventing calcium hydroxide production system, dust generated in the feeding and smashing process of quicklime raw materials can be absorbed and put into use again, resources are saved, and the situation that the working environment is affected by dust raising is avoided.

Description

Technical Field

[0001] The invention relates to a dust-proof calcium hydroxide production system. Background Art

[0002] Calcium hydroxide is an inorganic compound with the chemical formula Ca(OH)2, commonly known as slaked lime or hydrated lime. It is a white powdery solid. After adding water, it presents two layers, the upper aqueous solution is called clear lime water, and the lower suspension is called lime milk or lime slurry. The upper clear lime water can be used to test carbon dioxide, and the lower turbid liquid lime milk is a building material. Calcium hydroxide is a strong alkali with bactericidal and antiseptic properties, and is corrosive to skin and fabrics. Calcium hydroxide is widely used in industry. It is a commonly used building material, and is also used as a bactericide and chemical raw material.

[0003] At present, in the calcium hydroxide production system, it is necessary to feed the quicklime raw material to a pulverizing device for pulverization, and then the quicklime powder is mixed with water and subjected to a digestion reaction to obtain calcium hydroxide powder. However, in the process of feeding and pulverizing the quicklime raw material, quicklime dust will always fly, which not only wastes resources, but also increases the amount of air pollution on site, and the amount of dust in the air is too high, which will also affect the health of workers. For this reason, it is necessary to design a corresponding technical solution to solve the above problems. Summary of the invention

[0004] The object of the present invention is to provide a dust-proof calcium hydroxide production system, which has a reasonable structure. By arranging a dust-proof device, the dust generated during the feeding and crushing of quicklime raw materials can be absorbed and put back into use, which not only saves resources but also avoids the flying of dust to affect the working environment.

[0005] To achieve the above object, the technical solution of the present invention is to design a dust-proof calcium hydroxide production system, comprising a quicklime raw material storage container, and a crushing device arranged below the quicklime raw material storage container; The pulverizing equipment includes a pulverizing bin, a pulverizing device and a dust prevention device. A feed port is provided at the top of the pulverizing bin, the bottom of the pulverizing bin is connected to a quicklime digester, and a filter plate is provided inside the pulverizing bin. The feed port is located directly below the discharge end of the quicklime raw material storage container. The pulverizing device comprises a pulverizing roller assembly and a first driving mechanism, wherein the pulverizing roller assembly is arranged inside the pulverizing bin and above the filter plate, wherein the pulverizing roller assembly comprises a first pulverizing roller and a second pulverizing roller, wherein the first pulverizing roller and the second pulverizing roller are rotatably connected to the side wall of the pulverizing bin through a rotating shaft, respectively, and the first driving mechanism is used to drive the first pulverizing roller and the second pulverizing roller to rotate in opposite directions; The anti-dust device includes a dust suction mechanism, a sealing plate assembly and a second driving mechanism, the dust suction mechanism includes two dust suction hoods, the two dust suction hoods are respectively arranged on both sides above the feed port, the dust suction hood is connected with a dust suction pipe, the end of the dust suction pipe away from the dust suction hood passes through the side wall of the crushing bin and extends to the interior of the crushing bin, and the end of the dust suction pipe away from the dust suction hood is located below the filter plate, the sealing plate assembly is arranged above the feed port, and the sealing plate assembly includes two movable sealing plates, the two movable sealing plates are respectively slidably connected to the top of the crushing bin, and the second driving mechanism is used to drive the two movable sealing plates to move toward or away from each other so that the two movable sealing plates close or open the feed port.

[0006] Preferably, the first driving mechanism includes a first motor, a first gear, a second gear and a third gear, the rotating shaft of the first crushing roller passes through the side wall of the crushing bin and is fixedly connected to the second gear, the rotating shaft of the second crushing roller passes through the side wall of the crushing bin and is fixedly connected to the third gear, the first motor is arranged on the outer wall of the crushing bin, the first gear is fixedly connected to the output shaft of the first motor, and the second gear is meshed with the first gear and the third gear respectively.

[0007] Preferably, a swing shaft is fixedly provided in the middle position of the filter plate, the swing shaft is rotatably connected to the side wall of the crushing bin, and the swing shaft passes through the side wall of the crushing bin and is fixedly connected to a fourth gear, a rack is slidably connected to the outer wall of the crushing bin, the rack is meshingly connected to the fourth gear, and one end of the rack is hinged to a connecting rod through a first shaft pin, the other end of the connecting rod is hinged to the first gear through a second shaft pin, and the second shaft pin is eccentrically arranged on the first gear.

[0008] Preferably, the second driving mechanism includes a second motor, a screw and two connecting blocks, the two connecting blocks are fixedly connected to the sides of the two movable sealing plates respectively, the second motor is arranged on the top of the crushing bin, one end of the screw is fixedly connected to the output shaft of the second motor, the two connecting blocks are threadedly connected to the screw through threaded holes respectively, and the threaded directions of the threaded holes of the two connecting blocks are opposite.

[0009] Preferably, two guide plates are provided on the top of the crushing bin, the two guide plates are respectively located on both sides of the feed opening, and the two movable sealing plates are respectively movably provided on the two guide plates.

[0010] Preferably, two support plates are provided on the top of the crushing bin, and the two dust suction pipes are fixedly penetrated through the two support plates respectively, an exhaust fan is provided on the dust suction pipe, and a button switch for controlling the power-on operation of the exhaust fan is provided on the support plate, the two movable sealing plates are located between the two support plates, and the two movable sealing plates correspond to the two support plates one by one, a pressure plate is provided at one end of the movable sealing plate close to the corresponding support plate, a pressing rod for pressing the button switch is movably penetrated through the pressing plate, a convex ring is provided on the pressing rod, a spring sleeved on the pressing rod is connected between the convex ring and the pressure plate, and a limit block for blocking the convex ring is provided on the support plate.

[0011] The advantages and beneficial effects of the present invention are: providing a dust-proof calcium hydroxide production system with a reasonable structure. By setting a dust-proof device, the dust generated during the feeding and crushing of quicklime raw materials can be absorbed and put back into use, which not only saves resources but also prevents dust from flying and affecting the working environment. In addition, by swinging the filter plate, the filter plate is prevented from being blocked during use, and the swinging can effectively improve the filtering efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the present invention.

[0013] Figure 2 yes Figure 1 Enlarged view of point A in the middle.

[0014] Figure 3 It is a schematic diagram of the first driving mechanism in the present invention.

[0015] Figure 4 It is a schematic diagram of the second driving mechanism in the present invention. DETAILED DESCRIPTION

[0016] The specific implementation of the present invention is further described below in conjunction with the accompanying drawings and embodiments. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the protection scope of the present invention.

[0017] The technical solution specifically implemented in the present invention is: like Figures 1 to 4 As shown, a dust-proof calcium hydroxide production system includes a quicklime raw material storage container 1, and a crushing device arranged below the quicklime raw material storage container 1; The pulverizing equipment includes a pulverizing bin 2, a pulverizing device and a dust prevention device. A feed port 3 is provided on the top of the pulverizing bin 2. The bottom of the pulverizing bin 2 is connected to a quicklime slaker (not shown in the figure). A filter plate 4 is provided inside the pulverizing bin 2. The feed port 3 is located directly below the discharge end of the quicklime raw material storage container 1. The pulverizing device comprises a pulverizing roller assembly and a first driving mechanism, wherein the pulverizing roller assembly is arranged inside the pulverizing bin 2 and above the filter plate 4, wherein the pulverizing roller assembly comprises a first pulverizing roller 5 and a second pulverizing roller 6, wherein the first pulverizing roller 6 and the second pulverizing roller 6 are rotatably connected to the side wall of the pulverizing bin 2 via a rotating shaft, respectively, and the first driving mechanism is used to drive the first pulverizing roller 5 and the second pulverizing roller 6 to rotate in opposite directions; The anti-dust device includes a dust suction mechanism, a sealing plate assembly and a second driving mechanism. The dust suction mechanism includes two dust hoods 7, and the two dust hoods 7 are respectively arranged on both sides above the feed port 3. The dust hood 7 is connected to a dust suction pipe 8. The end of the dust suction pipe 8 away from the dust hood 7 passes through the side wall of the crushing bin 2 and extends to the interior of the crushing bin 2, and the end of the dust suction pipe 8 away from the dust hood 7 is located below the filter plate 4. The sealing plate assembly is arranged above the feed port 3, and the sealing plate assembly includes two movable sealing plates 9, and the two movable sealing plates 9 are respectively slidably connected to the top of the crushing bin 2. The second driving mechanism is used to drive the two movable sealing plates 9 to move toward or away from each other, so that the two movable sealing plates 9 close or open the feed port 3.

[0018] By adopting the above scheme, the working principle of the dust-proof calcium hydroxide production system of the present invention is: During operation, the two movable sealing plates 9 are driven to move apart by the second driving mechanism to open the feed port 3, and the quicklime raw material discharged from the discharge end of the quicklime raw material storage container 1 enters the crushing bin 2 through the feed port 3, and the first crushing roller 5 and the second crushing roller 6 are driven by the first driving mechanism to rotate in opposite directions to crush the quicklime raw material. The quicklime dust raised during the feeding process and the quicklime dust escaping from the feed port 3 during the crushing process are absorbed by the dust hood 7, and the quicklime dust absorbed by the dust hood 7 is re-discharged into the crushing bin 2 through the dust suction pipe 8, and after the feeding is completed, the two movable sealing plates 9 are driven to move toward each other by the second driving mechanism to close the feed port 3 to prevent the quicklime dust inside the crushing bin 2 from leaking to the outside of the crushing bin 2; the crushed quicklime powder is filtered out of large impurities by the filter plate 4, and then the quicklime powder is mixed with the quicklime dust discharged from the dust suction pipe 8 and falls into the quicklime digester for digestion reaction.

[0019] Furthermore, the first driving mechanism includes a first motor (not shown in the figure), a first gear 10, a second gear 11 and a third gear 12, the rotating shaft of the first crushing roller 5 passes through the side wall of the crushing bin 2 and is fixedly connected to the second gear 11, the rotating shaft of the second crushing roller 6 passes through the side wall of the crushing bin 2 and is fixedly connected to the third gear 12, the first motor is arranged on the outer wall of the crushing bin 2, the first gear 10 is fixedly connected to the output shaft of the first motor, and the second gear 11 is meshed and connected with the first gear 10 and the third gear 12 respectively. By adopting the above scheme, the specific process of the first driving mechanism driving the first crushing roller 5 and the second crushing roller 6 to rotate in the opposite direction is: starting the first motor to drive the first gear 10 to rotate, the first gear 10 drives the second gear 11 and the first crushing roller 5 to rotate, and the second gear 11 drives the third gear 12 and the second crushing roller 6 to rotate, and the rotation direction of the second crushing roller 6 is opposite to the rotation direction of the first crushing roller 5.

[0020] Furthermore, a swing shaft 13 is fixedly provided in the middle of the filter plate 4, and the swing shaft 13 is rotatably connected to the side wall of the crushing bin 2, and the swing shaft 13 penetrates the side wall of the crushing bin 2 and is fixedly connected to the fourth gear 14, and a rack 15 is slidably connected to the outer wall of the crushing bin 2, and the rack 15 is meshed with the fourth gear 14, and one end of the rack 15 is hinged to a connecting rod 17 through a first shaft pin 16, and the other end of the connecting rod 17 is hinged to the first gear 10 through a second shaft pin 18, and the second shaft pin 18 is eccentrically arranged on the first gear 10. By adopting the above scheme, when the first motor drives the first gear 10 to rotate, the first gear 10 will drive the rack 15 to reciprocate through the connecting rod 17, so that the rack 15 drives the swing shaft 13 to reciprocate through meshing with the fourth gear 14, and then the swing shaft 13 drives the filter plate 4 to reciprocate with a small amplitude.

[0021] Furthermore, the second driving mechanism includes a second motor 19, a screw rod 20 and two connecting blocks 21, the two connecting blocks 21 are fixedly connected to the sides of the two movable sealing plates 9 respectively, the second motor 19 is arranged at the top of the crushing bin 2, one end of the screw rod 20 is fixedly connected to the output shaft of the second motor 19, the two connecting blocks 21 are threadedly connected to the screw rod 20 through threaded holes respectively, and the threaded rotation directions of the threaded holes of the two connecting blocks 21 are opposite. By adopting the above scheme, the specific process of the second driving mechanism driving the two movable sealing plates 9 to move toward or away from each other is as follows: when the second motor 19 is started to run forward and drive the screw rod 20 to rotate, the screw rod 20 drives the two movable sealing plates 9 to move toward each other through the threaded connection with the two connecting blocks 21; when the second motor 19 is started to run reversely and drive the screw rod 20 to rotate, the screw rod 20 drives the two movable sealing plates 9 to move away from each other through the threaded connection with the two connecting blocks 21.

[0022] Furthermore, two guide plates 22 are provided on the top of the crushing bin 2, and the two guide plates 22 are respectively located on both sides of the feed port 3, and the two movable sealing plates 9 are respectively movably arranged on the two guide plates 22. By adopting the above scheme, the movable sealing plate is guided to move by the guide plate to improve the stability of the movable sealing plate during movement.

[0023] Furthermore, two support plates 23 are provided on the top of the crushing bin 2, and the two dust suction pipes 8 are fixedly penetrated through the two support plates 23 respectively. An exhaust fan 24 is provided on the dust suction pipe 8, and a button switch 25 for controlling the power-on operation of the exhaust fan 24 is provided on the support plate 23. The two movable sealing plates 9 are located between the two support plates 23, and the two movable sealing plates 9 correspond to the two support plates 23 one by one. A pressing plate 26 is provided at one end of the movable sealing plate 9 close to the corresponding support plate 23, and a pressing rod 27 for pressing the button switch 25 is movably penetrated in the pressing plate 26, and a convex ring 28 is provided on the pressing rod 27, and a spring 29 sleeved on the pressing rod 27 is connected between the convex ring 28 and the pressure plate 26, and a limit block 30 for blocking the convex ring 28 is provided on the support plate 23. By adopting the above scheme, when the two movable sealing plates 9 move apart and open the feed port 3, the movable sealing plates 9 drive the pressure plate 26 and the pressing rod 27 to move toward the corresponding support plate 23. The pressing rod 27 will apply pressure to and press the button switch 25 after moving a short distance, so that the exhaust fan 24 can be started immediately when the feed port 3 is just opened to prevent the quicklime dust inside the crushing bin 2 from escaping through the feed port 3 and dissipating into the external environment. After the pressing rod 27 presses the button switch 25, the convex ring 28 will be blocked by the limit block 30, and then the movable sealing plate 9 continues to move until the feed port 3 is fully opened. During this process, the pressure plate 26 will move along the pressing rod 27 and compress the spring 29. The elastic force of the spring 29 can keep the pressing rod 27 pressing the button switch 25, thereby keeping the exhaust fan 24 in operation. In addition, by setting the limit block 30, it can be prevented that the pressing rod 27 exerts excessive pressure on the button switch 25 and causes damage. When the two movable sealing plates 9 move toward each other and close the feed port 3, the movable sealing plates 9 drive the pressure plate 26 to move away from the corresponding support plate 23, and the pressing rod 27 keeps pressing the button switch 25 through the elastic force of the spring 29 to keep the exhaust fan 24 in operation. When the movable sealing plates 9 move to completely close the feed port 3, the pressure of the pressing rod 27 on the button switch 25 will be removed, thereby releasing the pressure on the button switch 25, and the exhaust fan 24 will automatically stop running.

[0024] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A dust-proof calcium hydroxide production system, characterized in that: It includes a quicklime raw material storage container and a crushing device arranged below the quicklime raw material storage container; The pulverizing equipment includes a pulverizing bin, a pulverizing device and a dust prevention device. A feed port is provided at the top of the pulverizing bin, the bottom of the pulverizing bin is connected to a quicklime digester, and a filter plate is provided inside the pulverizing bin. The feed port is located directly below the discharge end of the quicklime raw material storage container. The pulverizing device comprises a pulverizing roller assembly and a first driving mechanism, wherein the pulverizing roller assembly is arranged inside the pulverizing bin and above the filter plate, wherein the pulverizing roller assembly comprises a first pulverizing roller and a second pulverizing roller, wherein the first pulverizing roller and the second pulverizing roller are rotatably connected to the side wall of the pulverizing bin through a rotating shaft, respectively, and the first driving mechanism is used to drive the first pulverizing roller and the second pulverizing roller to rotate in opposite directions; The anti-dust device includes a dust suction mechanism, a sealing plate assembly and a second driving mechanism, the dust suction mechanism includes two dust suction hoods, the two dust suction hoods are respectively arranged on both sides above the feed port, the dust suction hood is connected with a dust suction pipe, the end of the dust suction pipe away from the dust suction hood passes through the side wall of the crushing bin and extends to the interior of the crushing bin, and the end of the dust suction pipe away from the dust suction hood is located below the filter plate, the sealing plate assembly is arranged above the feed port, and the sealing plate assembly includes two movable sealing plates, the two movable sealing plates are respectively slidably connected to the top of the crushing bin, and the second driving mechanism is used to drive the two movable sealing plates to move toward or away from each other so that the two movable sealing plates close or open the feed port.

2. The dust-proof calcium hydroxide production system according to claim 1, characterized in that: The first driving mechanism includes a first motor, a first gear, a second gear and a third gear. The rotating shaft of the first crushing roller passes through the side wall of the crushing bin and is fixedly connected to the second gear. The rotating shaft of the second crushing roller passes through the side wall of the crushing bin and is fixedly connected to the third gear. The first motor is arranged on the outer wall of the crushing bin, the first gear is fixedly connected to the output shaft of the first motor, and the second gear is meshed with the first gear and the third gear respectively.

3. The dust-proof calcium hydroxide production system according to claim 2, characterized in that: A swing shaft is fixedly provided in the middle position of the filter plate, the swing shaft is rotatably connected to the side wall of the crushing bin, and the swing shaft passes through the side wall of the crushing bin and is fixedly connected to a fourth gear. A rack is slidably connected to the outer wall of the crushing bin, the rack is meshed with the fourth gear, and one end of the rack is hinged to a connecting rod through a first shaft pin, and the other end of the connecting rod is hinged to the first gear through a second shaft pin, and the second shaft pin is eccentrically arranged on the first gear.

4. The dust-proof calcium hydroxide production system according to claim 3, characterized in that: The second driving mechanism includes a second motor, a screw and two connecting blocks, the two connecting blocks are fixedly connected to the sides of the two movable sealing plates respectively, the second motor is arranged on the top of the crushing bin, one end of the screw is fixedly connected to the output shaft of the second motor, the two connecting blocks are threadedly connected to the screw through threaded holes respectively, and the threaded directions of the threaded holes of the two connecting blocks are opposite.

5. The dust-proof calcium hydroxide production system according to claim 4, characterized in that: Two guide plates are arranged on the top of the crushing bin, the two guide plates are respectively located on both sides of the feed port, and the two movable sealing plates are respectively movably arranged through the two guide plates.

6. The dust-proof calcium hydroxide production system according to claim 5, characterized in that: Two support plates are provided on the top of the crushing bin, and the two dust suction pipes are fixedly penetrated through the two support plates respectively. An exhaust fan is provided on the dust suction pipe, and a button switch for controlling the power-on operation of the exhaust fan is provided on the support plate. The two movable sealing plates are located between the two support plates, and the two movable sealing plates correspond to the two support plates one by one. A pressure plate is provided at one end of the movable sealing plate close to the corresponding support plate, and a pressing rod for pressing the button switch is movably penetrated through the pressing plate, and a convex ring is provided on the pressing rod, a spring sleeved on the pressing rod is connected between the convex ring and the pressure plate, and a limit block for blocking the convex ring is provided on the support plate.

Images