Totally-closed feeding structure of lime kiln

Abstract

The utility model discloses a totally-closed feeding structure of a lime kiln, and relates to the technical field of lime production. According to the technical scheme, the lime kiln lifting device comprises a lime kiln and a lifting machine guide rail, a hopper is arranged on the lifting machine guide rail, a first protection plate is arranged on the side, close to the lime kiln, of the lifting machine guide rail, side protection plates are fixedly connected to the two sides of the first protection plate in the width direction respectively, and a second protection plate is arranged on the side, away from the lime kiln, of the lifting machine guide rail; two ends in the width direction of the second protection plate are fixedly connected with one ends, far away from the first protection plate, of the two side protection plates; and a secondary dust removal assembly is detachably mounted on the hopper. Due to the fact that the totally-closed frame structure composed of the first protection plate, the second protection plate and the two side protection plates can not only reduce loss of materials in the hopper in the transportation process of the bucket elevator, but also prevent the materials from drifting to the surrounding air to cause environmental pollution.

Description

Technical Field

[0001] The present application relates to the technical field of elevators, and in particular to a fully enclosed feeding structure of a lime kiln. Background Art

[0002] Currently, the key lime kiln equipment commonly used in domestic lime production processes is a vertical lime kiln. Limestone is calcined in the kiln to produce quicklime and carbon dioxide, which are used for ammonia distillation and carbonization to produce alkali, respectively. The main function of the loading structure is to transport the limestone-coke mixture from the ground to the kiln roof, and then pour it into the kiln for calcination.

[0003] The commonly used loading structure is a single bucket elevator. In actual production, when a single bucket elevator lifts materials from the ground to the top of the lime kiln, the bucket is basically always exposed to the environment, such as the single bucket elevator mentioned in Chinese patent application numbers 201821387909.7, 202020594700.9 and 202020888187.4. As a result, the material in the bucket is easily leaked during transportation. Since the height of the lime kiln is usually around ten meters, the material is exposed to the air for a long time when the single bucket elevator is transporting the material. This will aggravate the material loss during transportation and the pollution to the surrounding environment. Utility Model Content

[0004] The present application provides a fully enclosed feeding structure for a lime kiln, which can effectively solve the problems of large material loss and pollution to the surrounding environment caused by the hopper being exposed to the air during material transportation in the existing lime kiln feeding structure.

[0005] The above-mentioned purpose of this application is achieved through the following technical solutions:

[0006] A fully enclosed loading structure for a lime kiln includes an elevator guide rail mounted on one side of the lime kiln, a hopper slidably connected to the elevator guide rail, the hopper being connected to a power device mounted in the top of the lime kiln via a traction wire, the elevator guide rail being fixedly connected to the lime kiln via a connecting column, a first guard plate being provided on the side of the elevator guide rail close to the lime kiln, the connecting columns between the elevator guide rail and the lime kiln all passing through the first guard plate, and all the connecting columns are welded to the first guard plate;

[0007] The width of the first guard plate is greater than the width of the elevator guide rail, and a side guard plate is fixedly connected to each of the two sides of the first guard plate in the width direction, and the width of the side guard plate is greater than the width of the hopper; a second guard plate is provided on the side of the elevator guide rail away from the lime kiln, and both ends of the second guard plate in the width direction are fixedly connected to the ends of the two side guard plates away from the first guard plate;

[0008] The upper ends of the first guard plate, the second guard plate and the two side guard plates are all fixedly connected to the silo port on the top of the lime kiln for the hopper to enter;

[0009] The hopper is equipped with a secondary dust removal component that can suppress dust generated during its movement.

[0010] Furthermore, the secondary dust removal assembly includes a water pump with a waterproof protective shell on the outside, the water pump is detachably mounted on the side wall of the hopper away from the lime kiln, the upper port of the water pump is connected to one end of a water outlet pipe, and the other end of the water outlet pipe is connected to an atomizing nozzle;

[0011] The water outlet pipe is fixedly installed on the outside of the hopper through a pipe clamp;

[0012] The lower port of the water pump is connected to one end of a water inlet pipe, and the other end of the water inlet pipe is connected to a water storage unit. The water storage unit can provide water flow to the atomizing nozzle through the water pump.

[0013] Furthermore, a perforated ear plate is installed at each of the four corners of the water pump close to the hopper, and the perforated ear plates are respectively inserted into a bracket, and the perforated ear plates are connected to the corresponding brackets by bolts and nuts; multiple brackets are welded to the same fixed plate at one end away from the water pump, and the fixed plate is welded to the outer wall of the hopper away from the lime kiln.

[0014] Furthermore, the water storage unit includes a joint sleeve, the upper end of which is fixedly connected to the bottom of the hopper, a water storage pot is provided below the joint sleeve, the upper end of which is inserted into the lower end of the joint sleeve and the two are threadedly connected;

[0015] A side joint is provided on the joint sleeve away from the lime kiln. The end of the water inlet pipe away from the water pump extends from the side joint into the joint sleeve and then extends downward along the axis of the joint sleeve to the bottom of the water storage pot.

[0016] Furthermore, a guide block is fixedly provided in the middle area of ​​the hopper away from the lime kiln side, and a through hole is provided in the middle of the guide block along the contour trajectory of the hopper edge, the diameter of the through hole is equal to the diameter of the water inlet pipe, and the through hole is provided with an observation notch on the side away from the hopper, and the width of the observation notch is smaller than the diameter of the through hole.

[0017] Furthermore, the lower end of the guide block extends toward the lime kiln along the bottom contour of the hopper, and the extended portion of the guide block is provided with a through avoidance opening at a position corresponding to the joint sleeve, and the width of the avoidance opening is greater than the diameter of the joint sleeve.

[0018] Furthermore, a support block is symmetrically provided on both sides of the bottom of the hopper along the width direction of the elevator guide rail, and the elevation of the lowest point of the support block is lower than the elevation of the lowest point of the water storage pot.

[0019] Furthermore, the water outlet pipe is a rubber hose and the water outlet pipe is a metal pipe.

[0020] In summary, this application includes at least one of the following beneficial technical effects:

[0021] The elevator guide rail of the present application is provided with a first guard plate, a second guard plate and two side guard plates on all sides, and the two ends of the two guard plates in the width direction are connected to the first guard plate and the second guard plate respectively, so that the first guard plate, the second guard plate and the two side guard plates can form a fully enclosed frame structure on the outside of the elevator guide rail that can isolate it and the hopper thereon from the external environment. When the hopper slides in the vertical direction on the elevator guide rail, the fully enclosed frame structure composed of the first guard plate, the second guard plate and the two side guard plates isolates the external environment, which can effectively prevent the airflow in the air from intruding on the material in the hopper, thereby reducing the loss of material in the hopper during transportation. At the same time, even if the material in the hopper is accidentally scattered or dusty, the fully enclosed frame structure can prevent these materials from drifting into the surrounding air and causing environmental pollution. The secondary dust removal component on the hopper can further suppress these dusts and reduce the impact of dust on the interior of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0023] Figure 1 It is a schematic diagram of the overall structure of this application;

[0024] Figure 2 It is a schematic diagram of the structure after the second guard plate and one of the side guard plates are removed;

[0025] Figure 3 It is a structural diagram of a hopper equipped with a secondary dust removal assembly;

[0026] Figure 4 is Figure 3 A schematic diagram of the structure after the water storage pot is disassembled from the joint sleeve;

[0027] Figure 5This is a top view after the water inlet pipe in the outer guide block of the hopper is removed;

[0028] Figure 6 is Figure 3 A schematic diagram of the structure when observing from the side front after the water storage pot is disassembled from the joint sleeve.

[0029] Figure numerals: 1. Lime kiln; 2. Hoist guide rail; 3. Hopper; 4. Connecting column; 5. First guard plate; 6. Side guard plate; 7. Second guard plate; 8. Secondary dust removal assembly; 81. Water pump; 82. Water outlet pipe; 83. Atomizing nozzle; 84. Pipe clamp; 85. Water inlet pipe; 86. Water storage unit; 861. Connector sleeve; 862. Water storage pot; 863. Side connector; 9. Ear plate with hole; 10. Bracket; 11. Fixing plate; 12. Guide block; 13. Through hole; 14. Observation gap; 15. Avoidance opening; 16. Support pad. DETAILED DESCRIPTION

[0030] To make the purpose, technical solutions, and advantages of the embodiments of this application more clear, the technical solutions in the embodiments of this application are clearly and completely described below. Obviously, the described embodiments are part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts also fall within the scope of protection of this application.

[0031] like Figure 1 and Figure 2 As shown, a fully enclosed loading structure of a lime kiln disclosed in the present application includes an elevator guide rail 2 installed on one side of the lime kiln 1. A hopper 3 is slidably connected to the elevator guide rail 2. The hopper 3 is connected to a power device installed in the top of the lime kiln 1 via a traction wire. The elevator guide rail 2 and the lime kiln 1 are fixedly connected via a connecting column 4. A first guard plate 5 is provided on the side of the elevator guide rail 2 close to the lime kiln 1. The connecting columns 4 between the elevator guide rail 2 and the lime kiln 1 all pass through the first guard plate 5, and all the connecting columns 4 are welded and fixed to the first guard plate 5.

[0032] The width of the first guard plate 5 is greater than the width of the elevator guide rail 2. A side guard plate 6 is fixedly connected to each side of the first guard plate 5 in the width direction, and the width of the side guard plate 6 is greater than the width of the hopper 3. A second guard plate 7 is provided on the side of the elevator guide rail 2 away from the lime kiln 1. Both ends of the second guard plate 7 in the width direction are fixedly connected to the ends of the two side guard plates 6 away from the first guard plate 5.

[0033] The upper ends of the first guard plate 5, the second guard plate 7 and the two side guard plates 6 are fixedly connected to the silo port on the top of the lime kiln 1 for the hopper 3 to enter; the hopper 3 is equipped with a secondary dust removal component 8 that can suppress the dust generated during its movement.

[0034] In the above embodiment, the elevator guide rail 2 of the present application is respectively provided with a first guard plate 5, a second guard plate 7 and two side guard plates 6 on all sides, and the two ends of the two side guard plates 6 in the width direction are respectively connected to the first guard plate 5 and the second guard plate 7, so that the first guard plate 5, the second guard plate 7 and the two side guard plates 6 can form a fully enclosed frame structure on the outside of the elevator guide rail 2 that can isolate it and the hopper 3 thereon from the external environment. When the hopper 3 slides in the vertical direction on the elevator guide rail 2, the fully enclosed frame structure composed of the first guard plate 5, the second guard plate 7 and the two side guard plates 6 isolates the external environment, which can effectively prevent the airflow in the air from disturbing the material in the hopper 3, thereby reducing the loss of material in the hopper 3 during transportation and the harm of dust to the external environment. At the same time, even if the material in the hopper 3 is accidentally scattered, the fully enclosed frame structure can prevent these materials from drifting into the surrounding air and causing environmental pollution.

[0035] A silo for temporarily storing materials is generally provided at the top of the lime kiln 1. A power device that can drive the hopper 3 to slide along the elevator guide rail 2 by pulling a steel wire is usually installed above the inside of the silo. In order to ensure that the material in the hopper 3 is smoothly introduced into the silo at the top of the lime kiln 1, a part of the upper end of the elevator guide rail 2 will extend into the silo at the top of the lime kiln 1. The corresponding hopper 3 is last exposed to the environment when transporting materials at the silo port at the top of the lime kiln 1. Therefore, in order to ensure the sealing effect of the frame structure composed of the first guard plate 5, the second guard plate 7 and the two side guard plates 6 on the working process of the hopper 3, the present application fixes the upper ends of the first guard plate 5, the second slide plate and the two side guard plates 6 to the silo port at the top of the lime kiln 1 for the hopper 3 to enter.

[0036] Although the fully enclosed frame structure composed of the first guard plate 5, the second guard plate 7 and the two side guard plates 6 isolates the external environment and reduces the pollution to the external environment when the hopper 3 transports materials, there will still be dust inside the fully enclosed frame structure when it moves along the elevator guide rail 2. If these dusts are not suppressed, they may pollute the elevator guide rail 2, the first guard plate 5, the second guard plate 7 and the two side guard plates 6 over time, affecting the movement of the hopper 3 and the environment inside the feeding structure, and it is also inconvenient to clean up later. In addition, when the hopper 3 at the top of the lime kiln 1 dumps materials along the curved track, the dust generated will be more serious than the dust generated during the vertical movement process. Moreover, when the hopper 3 is dumping materials, it is very close to its power equipment. These dusts spread upward and can easily cause harm to the power equipment. Therefore, the present application further installs a secondary dust removal component 8 outside the hopper 3 to suppress the internal dust of the fully enclosed frame structure composed of the first guard plate 5, the second guard plate 7 and the two side guard plates 6, thereby solving the above problems.

[0037] Furthermore, if Figure 2-Figure 6As shown, the secondary dust removal component 8 includes a water pump 81 with a waterproof protective shell on the outside. The water pump 81 is detachably mounted on the side wall of the hopper 3 away from the lime kiln 1. The upper port of the water pump 81 is connected to one end of the water outlet pipe 82, and the other end of the water outlet pipe 82 is connected to the atomizing nozzle 83; the water outlet pipe 82 is fixedly mounted on the outside of the hopper 3 through a pipe clamp 84; the lower port of the water pump 81 is connected to one end of the water inlet pipe 85, and the other end of the water inlet pipe 85 is connected to a water storage unit 86, which can provide water flow to the atomizing nozzle 83 through the water pump 81.

[0038] In the above embodiment, during the movement of the hopper 3 along the elevator guide rail 2, the water pump 81 can draw water from the water storage unit 86 through the water inlet pipe 85, and then pump it to the atomizing nozzle 83 along the water outlet pipe 82. The atomizing nozzle 83 can convert these water flows into fine mist water and spray it evenly around the upper port of the hopper 3. When the hopper 3 generates dust during the movement process, the only path for the dust to diffuse outward is the upper port, and the water mist sprayed by the atomizing nozzle 83 just covers the upper port of the hopper 3, thereby effectively suppressing the escape of dust in the hopper 3. The fully enclosed frame structure surrounded by the corresponding first guard plate 5, the second guard plate 7 and the two side guard plates 6 and the structures inside them that may be harmed by dust can be effectively protected.

[0039] In actual production, the atomizing nozzle 83 of the present application can preferably be a dry mist dust suppression device (also known as an ultrasonic dry mist dust suppression system). Its principle is that a sonic oscillator is driven by compressed air, and the sonic boom of high-frequency sound waves is used to highly atomize water in the nozzle resonance chamber, generating micron-sized fine water mist particles that are sprayed toward the dust generating point, causing the water mist particles and dust particles to collide with each other, adhere to each other, and aggregate and grow, and then settle under the action of their own gravity, thereby achieving the effect of dust suppression. This content is prior art, and the specific principle is not repeated here. When in use, the dry mist dust suppression device consumes less than 0.05% of the weight of the material in the hopper 3. This water mist, after being lost in the air and after aggregating and settling with the dust, only affects the moisture content of the material in the hopper 3 by 0.02% to 0.01% of the weight of the material in the hopper 3. This effect does not affect the subsequent normal dumping of the material in the hopper 3. In addition, the material is subsequently poured into the lime kiln 1 for calcination, and the moisture in the material is easily removed in the lime kiln 1, without affecting the production of the material.

[0040] Furthermore, if Figure 4 and Figure 5 As shown, a perforated ear plate 9 is installed at each of the four corners of the water pump 81 close to the hopper 3. The perforated ear plates 9 are respectively inserted into a bracket 10, and the perforated ear plates 9 are connected to the corresponding brackets 10 by bolts and nuts; the ends of multiple brackets 10 away from the water pump 81 are welded to the same fixed plate 11, and the fixed plate 11 is welded to the outer wall of the hopper 3 away from the lime kiln 1.

[0041] In the above embodiment, when the water pump 81 is to be installed on the hopper 3, it is only necessary to insert the perforated ear plates 9 on the protective shell into the corresponding brackets 10 on the fixing plate 11 of the hopper 3, and then fix them with bolts and nuts. Since there is a certain distance between the water pump 81 and the hopper 3, it can provide sufficient operating space for workers when the water pump 81 needs to be repaired and disassembled later. Since the installation position of the water pump 81 and the hopper 3 is set outside the hopper 3 in this application, compared with directly fixing the water pump 81 to the outer wall of the hopper 3 with bolts, the damage to the side wall of the hopper 3 can be reduced, and the integrity of the side wall of the hopper 3 is also better because there are no holes on the side wall.

[0042] Furthermore, if Figure 3 、 Figure 4 and Figure 6 As shown, the water storage unit 86 includes a joint sleeve 861, the upper end of which is fixedly connected to the bottom of the hopper 3, and a water storage pot 862 is provided below the joint sleeve 861. The upper end of the water storage pot 862 is inserted into the lower end of the joint sleeve 861 and the two are threadedly connected;

[0043] A side joint 863 is provided on the side of the joint sleeve 861 away from the lime kiln 1. The end of the water inlet pipe 85 away from the water pump 81 extends from the side joint 863 into the joint sleeve 861 and then extends downward along the axis of the joint sleeve 861 to the bottom of the water storage pot 862.

[0044] In the above embodiment, the joint sleeve 861 is fixedly installed at the bottom of the hopper 3, so the upper end of the joint sleeve 861 is in a closed state, and a side joint 863 is connected to one side thereof. The side joint 863 is communicated with the internal space of the joint sleeve 861, and the lower end of the water inlet pipe 85 can enter the joint sleeve 861 from the side joint 863, and then extend the joint sleeve 861 downward along the inner wall of the joint sleeve 861, so that the joint sleeve 861 is used to start the positioning of the water inlet pipe 85. When the upper end of the water storage pot 862 is inserted into the lower end of the joint sleeve 861 and threadedly connected with it, the water inlet pipe 85 extending from the lower end of the joint sleeve 861 can just extend into the water storage pot 862, and the lower end of the water inlet pipe 85 extends to the bottom of the water storage pot 862. In this way, when the water pump 81 is working, it can draw water from the water storage pot 862 through the water inlet pipe 85.

[0045] Furthermore, if Figure 3 and Figure 4 As shown, a guide block 12 is fixedly provided in the middle area of ​​the hopper 3 on the side away from the lime kiln 1, and a through hole 13 is provided in the middle of the guide block 12 along the contour trajectory of the edge of the hopper 3. The diameter of the through hole 13 is equal to the diameter of the water inlet pipe 85, and an observation notch 14 is provided on the side of the through hole 13 away from the hopper 3, and the width of the observation notch 14 is smaller than the diameter of the through hole 13.

[0046] In the above embodiment, the guide block 12 provided on the outside of the hopper 3 in the manner described above can guide and position the water inlet pipe 85, allowing the water inlet pipe 85 to smoothly extend from one end of the water pump 81 (also referred to as the lower end of the water inlet pipe 85) to the joint sleeve 861, thereby improving the stability of the water inlet pipe 85 when the water pump 81 is pumping water. During installation, the worker can insert the water inlet pipe 85 from one end of the through hole 13 of the guide block 12, continue inserting the water inlet pipe 85 along the through hole 13 until the end of the water inlet pipe 85 passes through the other end of the through hole 13, and then extend the water inlet pipe 85 from the lower end of the joint sleeve 861 along the side joint 863 to complete the installation of the water inlet pipe 85. Since the diameter of the through hole 13 is equal to the diameter of the water inlet pipe 85, and the width of the notch 14 observed on one side of the through hole 13 is smaller than the diameter of the water outlet pipe 82, the water outlet pipe 82 can be prevented from detaching from the guide block 12 during use. The observation notch 14 on the guide block 12 allows workers to clearly see the moving state of the water outlet pipe 82 when inserting the water inlet pipe 85 into the guide block 12 .

[0047] Furthermore, if Figure 4 As shown, the lower end of the guide block 12 extends along the bottom contour of the hopper 3 toward the lime kiln 1 , and the extended portion of the guide block 12 is provided with a through avoidance opening 15 at a position corresponding to the joint sleeve 861 , and the width of the avoidance opening 15 is greater than the diameter of the joint sleeve 861 .

[0048] In the above embodiment, the extension portion provided at the bottom of the hopper 3 by the guide block 12 in the manner described above further enhances its guiding effect on the water inlet pipe 85, allowing it to smoothly pass into the joint sleeve 861. The joint sleeve 861 is disposed in the avoidance opening 15 of the guide block 12, and the width of the avoidance opening 15 is greater than the diameter of the joint sleeve 861. This provides sufficient space in the avoidance opening 15 for workers to easily insert the water inlet pipe 85 into the joint sleeve 861 through the side joint 863.

[0049] Furthermore, if Figure 3 and Figure 4 As shown, a support block 16 is symmetrically provided on both sides of the bottom of the hopper 3 along the width direction of the elevator guide rail 2, and the elevation of the lowest point of the support block 16 is lower than the elevation of the lowest point of the water storage pot 862.

[0050] In the above embodiment, when the hopper 3 is placed on the ground or other platforms, the elevation of the lowest point of the support block 16 is lower than the elevation of the lowest point of the water pot 862. At this time, the support block 16 will support the hopper 3 and create a certain gap between the lowest point of the water pot 862 and the ground or other platforms. In this way, the support block 16 can not only protect the water pot 862, but also leave a certain working space for workers to install and remove the water pot 862.

[0051] Furthermore, as shown in the figure, the water inlet pipe 85 is a rubber hose and the water outlet pipe 82 is a metal pipe.

[0052] In the above embodiment, the water inlet pipe 85 of the present application is configured as a rubber hose. This not only facilitates laying the water inlet pipe 85 along the through hole 13 in the middle of the guide block 12, but also allows for free adjustment of the pipe's curvature as needed, so that it can be inserted into the joint sleeve 861 through the side interface and into the water storage pot 862. The water outlet pipe 82 is configured as a metal pipe. In this way, after the water outlet pipe 82 is installed on the outside of the hopper 3 through the pipe clamp 84, it can provide sufficient support for the atomizing nozzle 83 on its top, ensuring that the atomizing nozzle 83 is stably positioned at the upper end of the hopper 3.

[0053] The implementation principle of this embodiment is: the first guard plate 5, the second guard plate 7 and the two side guard plates 6 of this application form a closed protective frame on the outside of the elevator guide rail 2 and the hopper 3 to reduce the impact between the hopper 3 and the surrounding environment during the material transportation process. During the process of the hopper 3 moving along the elevator guide rail 2, the water pump 81 can draw water from the water storage pot 862 of the water storage unit 86 through the water inlet pipe 85, and then pump it to the atomizing nozzle 83 along the water outlet pipe 82. The atomizing nozzle 83 can convert these water flows into fine mist water and spray it evenly around the upper port of the hopper 3. When the hopper 3 generates dust during the movement process, the only path for the dust to diffuse outward is the upper port, and the water mist sprayed by the atomizing nozzle 83 just covers the upper port of the hopper 3, which can effectively suppress the escape of dust in the hopper 3. The fully enclosed frame structure surrounded by the corresponding first guard plate 5, the second guard plate 7 and the two side guard plates 6 and the structures inside them that may be harmed by dust can be effectively protected, thereby further improving the dust-proof effect of the entire lime kiln 1 feeding structure.

[0054] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or make equivalent replacements for some or all of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A fully enclosed feeding structure for a lime kiln, comprising a hoist rail (2) mounted on one side of a lime kiln (1), a hopper (3) being slidably connected to the hoist rail (2), and the hopper (3) being connected to a power device mounted in the top of the lime kiln (1) via a traction wire, characterized in that: The elevator guide rail (2) and the lime kiln (1) are fixedly connected via a connecting column (4); a first guard plate (5) is provided on the side of the elevator guide rail (2) close to the lime kiln (1); the connecting columns (4) between the elevator guide rail (2) and the lime kiln (1) all pass through the first guard plate (5), and all the connecting columns (4) and the first guard plate (5) are welded and fixed together; The width of the first guard plate (5) is greater than the width of the elevator guide rail (2), and a side guard plate (6) is fixedly connected to both sides of the first guard plate (5) in the width direction, and the width of the side guard plate (6) is greater than the width of the hopper (3); a second guard plate (7) is provided on the side of the elevator guide rail (2) away from the lime kiln (1), and both ends of the second guard plate (7) in the width direction are fixedly connected to the ends of the two side guard plates (6) away from the first guard plate (5); The upper ends of the first guard plate (5), the second guard plate (7) and the two side guard plates (6) are all fixedly connected to the silo port on the top of the lime kiln (1) for the hopper (3) to enter; The hopper (3) is equipped with a secondary dust removal component (8) capable of suppressing dust generated during its movement.

2. The fully enclosed feeding structure of the lime kiln (1) according to claim 1 is characterized in that: The secondary dust removal assembly (8) includes a water pump (81) with a waterproof protective shell on the outside. The water pump (81) is detachably mounted on the side wall of the hopper (3) away from the lime kiln (1). The upper end of the water pump (81) is connected to one end of a water outlet pipe (82), and the other end of the water outlet pipe (82) is connected to an atomizing nozzle (83). The water outlet pipe (82) is fixedly mounted on the outside of the hopper (3) via a pipe clamp (84); The lower port of the water pump (81) is connected to one end of a water inlet pipe (85), and the other end of the water inlet pipe (85) is connected to a water storage unit (86). The water storage unit (86) can provide water flow to the atomizing nozzle (83) through the water pump (81).

3. The fully enclosed feeding structure of the lime kiln (1) according to claim 2 is characterized in that: A perforated ear plate (9) is respectively installed at the four corners of the water pump (81) close to the hopper (3), and the perforated ear plate (9) is respectively inserted into a bracket (10), and the perforated ear plate (9) and the corresponding bracket (10) are connected by bolts and nuts; the ends of multiple brackets (10) away from the water pump (81) are welded to the same fixed plate (11), and the fixed plate (11) is welded to the outer wall of the hopper (3) away from the lime kiln (1).

4. The fully enclosed feeding structure of the lime kiln (1) according to claim 2 is characterized in that: The water storage unit (86) includes a joint sleeve (861), the upper end of the joint sleeve (861) is fixedly connected to the bottom of the hopper (3), a water storage pot (862) is provided below the joint sleeve (861), the upper end of the water storage pot (862) is inserted into the lower end of the joint sleeve (861), and the two are threadedly connected; A side joint (863) is provided on the side of the joint sleeve (861) away from the lime kiln (1); an end of the water inlet pipe (85) away from the water pump (81) extends from the side joint (863) into the joint sleeve (861) and then extends downward along the axis of the joint sleeve (861) to the bottom of the water storage pot (862).

5. The fully enclosed loading structure of the lime kiln (1) according to claim 4 is characterized in that: A guide block (12) is fixedly provided in the middle area of ​​the hopper (3) away from the lime kiln (1), and a through hole (13) is provided in the middle of the guide block (12) along the contour trajectory of the edge of the hopper (3). The diameter of the through hole (13) is equal to the diameter of the water inlet pipe (85), and an observation notch (14) is provided on the side of the through hole (13) away from the hopper (3), and the width of the observation notch (14) is smaller than the diameter of the through hole (13).

6. The fully enclosed feeding structure of the lime kiln (1) according to claim 5, characterized in that: The lower end of the guide block (12) extends along the bottom contour of the hopper (3) toward the lime kiln (1), and the extended portion of the guide block (12) is provided with a through avoidance opening (15) at a position corresponding to the joint sleeve (861), and the width of the avoidance opening (15) is greater than the diameter of the joint sleeve (861).

7. The fully enclosed feeding structure of the lime kiln (1) according to claim 6 is characterized in that: A support pad (16) is symmetrically provided on both sides of the bottom of the hopper (3) along the width direction of the elevator guide rail (2), and the elevation of the lowest point of the support pad (16) is lower than the elevation of the lowest point of the water storage pot (862).

8. The fully enclosed feeding structure of a lime kiln (1) according to any one of claims 2 to 7, characterized in that: The water inlet pipe (85) is a rubber hose, and the water outlet pipe (82) is a metal pipe.

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