Kiln top feeding device of lime shaft kiln

Abstract

The utility model discloses a kiln top feeding device of a lime shaft kiln, which relates to the technical field of lime shaft kiln feeding and comprises a hopper, a fixing plate fixedly connected to the bottom of the hopper and two rails symmetrically distributed front and back, two groups of pulleys are symmetrically and fixedly connected to the front and back side surfaces of the fixing plate, and the two groups of pulleys are arranged on the fixing plate. The two sets of pulleys are slidably connected to the two rails respectively, a first door plate and a second door plate are slidably connected to the left side face and the right side face of the hopper respectively, and the side face area of the first door plate and the side face area of the second door plate are larger than two thirds of the left side face area and the right side face area of the hopper. During use, the first door plate and the second door plate are pushed open through the first door opening mechanism and the second door opening mechanism respectively, and then raw materials are directly poured into the hopper through the charging port and the discharging port; therefore, the loading and unloading operation can be quickly completed, and the loading efficiency of the loading device is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lime shaft kiln feeding, in particular to a kiln top feeding device for a lime shaft kiln. Background Art

[0002] A lime shaft kiln is a device used to convert limestone into active lime through a calcining process. High-temperature calcination decomposes the calcium carbonate in the limestone into calcium oxide (quicklime) and carbon dioxide, producing active lime. This equipment is widely used in the production of refractory materials and lime.

[0003] When loading a lime shaft kiln, a single-bucket elevator is typically used to transport limestone to the feed port at the top of the kiln. The loading process includes: the elevator descending, the hopper scale loading the elevator, the elevator ascending, and finally, the elevator unloading into the weighing hopper at the kiln top. The loading and unloading process generates a large amount of dust and noise, polluting the environment and seriously endangering the health of on-site operators.

[0004] The Chinese invention patent with patent application number CN202010420725.1 records a feeding device for a double-chamber lime vertical kiln. By setting a lifting hopper, a sealed chute, a charging valve, a discharge valve and a unloading valve, the single-bucket elevator can be in a closed state during loading and unloading, and there is no dust overflow during the whole process, which can effectively avoid dust pollution to the surrounding environment and effectively protect the health of on-site operators. However, the above-mentioned feeding device controls the flow of raw materials through the charging valve, the discharge valve and the unloading valve, and the flow volume of the valve is limited. Compared with directly dumping the raw materials, the flow speed of the raw materials will be significantly reduced, thereby seriously reducing the feeding efficiency. Utility Model Content

[0005] The purpose of the utility model is to provide a kiln top feeding device for a lime shaft kiln, so as to solve the problem proposed in the above background technology that the existing lime shaft kiln feeding device controls the flow of raw materials through valves, which leads to a limited flow rate of raw materials, reduces the speed of loading and unloading, and thus seriously reduces the feeding efficiency.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a kiln top loading device for a lime shaft kiln, comprising a hopper, a fixed plate fixedly connected to the bottom of the hopper, and two tracks symmetrically distributed front and back, two sets of pulleys symmetrically fixedly connected to the front and rear side surfaces of the fixed plate, the two sets of pulleys being slidably connected to the two tracks, a first door panel and a second door panel being slidably connected to the left and right side surfaces of the hopper, respectively, the side areas of the first and second door panels being larger than two-thirds of the left and right side areas of the hopper, and further comprising a dust-proof loading assembly and a dust-proof unloading assembly;

[0007] The dustproof loading assembly includes a loading bin, a first inclined surface is provided on the right side of the loading bin, a loading port is opened on the first inclined surface, and a first door opening mechanism is also provided on the loading bin, and the left side of the hopper can be in contact with the first inclined surface;

[0008] The dust-proof unloading assembly includes a unloading bin, a second inclined surface is provided on the left side of the unloading bin, a unloading trough is opened on the second inclined surface, a unloading port is opened on the right inner wall of the unloading trough, a second door opening mechanism is provided on the unloading bin, and the right side of the hopper can be fitted with the second inclined surface.

[0009] Preferably, the first door opening mechanism includes a first groove provided on the first inclined surface, the bottom of the first groove is connected to the top of the charging port, the depth of the first groove is less than the depth of the charging port, the first door opening mechanism also includes a push plate fixedly connected to the bottom of the left inner wall of the first groove, and two first magnetic plates are symmetrically fixedly connected to the left and right sides of the hopper, and two first iron plates are symmetrically fixedly connected on the sides away from the first door panel and the second door panel. The two first iron plates can be respectively adsorbed with the two first magnetic plates, and the width of the first iron plate is greater than the width of the first magnetic plate. The advantage of this arrangement is that the opening operation of the first door panel can be completed synchronously during the movement of the hopper, saving loading time and thereby improving the efficiency of the loading operation.

[0010] Preferably, the second door opening mechanism includes a cylinder fixedly connected to the right inner wall of the unloading chute, the output end of the cylinder is fixedly connected to an electromagnetic plate, and the top of the right side of the second door panel is fixedly connected to a second iron plate, and the second iron plate can be adsorbed with the electromagnetic plate. The advantage of this arrangement is that it can ensure that the unloading work is completed quickly and smoothly, thereby improving the loading efficiency and reliability of the loading device.

[0011] Preferably, the dust-proof charging assembly further includes an auxiliary charging mechanism. The advantage of such an arrangement is that more raw materials can be loaded into the hopper in an orderly manner, further improving the efficiency of the charging operation.

[0012] Preferably, the auxiliary loading mechanism includes a limit plate movably inserted in the loading port, a feed port is opened on the right side of the limit plate, a feed pipe is connected to the left end of the feed port, and a pouring pipe is connected to the top of the feed pipe. The auxiliary loading mechanism includes two groups of hydraulic cylinders symmetrically fixedly connected between the front and rear inner walls of the loading bin, and the output ends of the two groups of hydraulic cylinders are fixedly connected to the left side of the limit plate. The width of the limit plate is equal to the width of the first door panel. The advantage of this arrangement is that it can prevent the raw material from occupying the opening on the left side of the hopper, causing the second door panel to be unable to fully close again, thereby improving the reliability of the feeding operation and effectively improving the feeding efficiency of the feeding device.

[0013] In summary, the technical effects and advantages of the utility model are:

[0014] In the present utility model, the first door panel and the second door panel are pushed open respectively by the first door opening mechanism and the second door opening mechanism, and then the raw materials are directly poured into the hopper through the loading port and the unloading port. Since the side areas of the first door panel and the second door panel occupy a larger area of the left and right sides of the hopper, the loading and unloading operations can be completed quickly, which effectively improves the loading efficiency of the loading device.

[0015] In the utility model, a limit plate is set and the hydraulic cylinder is started to push the limit plate into the opening on the left side of the hopper. In this way, the raw materials poured into the hopper through the feed port can be limited to prevent the raw materials from occupying the opening on the left side of the hopper and causing the first door panel to be unable to fully close again, thereby improving the reliability of the feeding operation. At the same time, it can also ensure that the raw materials fill the hopper to the greatest extent, ensuring that the maximum amount of raw materials can be loaded each time the feeding is carried out, and effectively improving the feeding efficiency of the feeding device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 This is a front view of a kiln top loading device of a lime shaft kiln in an embodiment of the present utility model;

[0018] Figure 2 This is a schematic diagram of the first partial structure of the charging bin in the embodiment of the utility model;

[0019] Figure 3 This is a schematic diagram of the second partial structure of the charging bin in the embodiment of the utility model;

[0020] Figure 4 This is a front cross-sectional view of the unloading bin in the embodiment of the present utility model;

[0021] Figure 5 This is a schematic structural diagram of the hopper in the embodiment of the present utility model;

[0022] Figure 6 It is a schematic diagram of the local structure of the hopper in the embodiment of the utility model.

[0023] In the figure: 1. hopper; 11. fixed plate; 12. track; 13. pulley; 14. guide rod; 15. sliding sleeve; 2. first door panel; 21. first magnetic plate; 22. first iron plate; 3. second door panel; 31. second iron plate; 4. dust-proof loading assembly; 41. loading bin; 411. through port; 42. loading port; 43. first door opening mechanism; 431. first groove; 432. push plate; 44. auxiliary loading mechanism; 441. limit plate; 442. feed port; 443. feed pipe; 444. pouring pipe; 445. hydraulic cylinder; 5. dust-proof unloading assembly; 51. unloading bin; 52. unloading chute; 521. unloading port; 53. second door opening mechanism; 531. cylinder; 532. electromagnetic plate; 6. vertical kiln. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] Example 1

[0026] Please refer to Figures 1-6 The kiln top loading device of a lime shaft kiln shown in FIG. includes a hopper 1, a fixed plate 11 fixedly connected to the bottom of the hopper 1, and two tracks 12 symmetrically distributed front and rear. Two sets of pulleys 13 are symmetrically fixedly connected to the front and rear side surfaces of the fixed plate 11, and the two sets of pulleys 13 are slidably connected to the two tracks 12. A first door panel 2 and a second door panel 3 are slidably connected to the left and right side surfaces of the hopper 1, respectively. The side areas of the first and second door panels 2 and 3 are greater than two-thirds of the left and right side areas of the hopper 1. The hopper 1 also includes a dust-proof loading assembly 4 and a dust-proof unloading assembly 5.

[0027] The hopper 1 further comprises two guide rods 14 symmetrically fixedly connected to the ground at the front and rear ends, and two sliding sleeves 15 symmetrically fixedly connected to the front and rear sides of the hopper 1. The two sliding sleeves 15 are symmetrically and movably sleeved on the two guide rods 14. In this way, the hopper 1 can move up and down more stably and reliably, ensuring the safe loading work and improving the reliability and safety of the loading device.

[0028] The hopper 1 is pulled by a traction device so that the hopper 1 can slide along the track 12 and the guide rod 14. Preferably, the traction device is an electric hoist with a pull rope to pull the hopper 1;

[0029] The dustproof charging assembly 4 includes a charging bin 41. A first inclined surface is provided on the right side of the charging bin 41. A loading port 42 is provided on the first inclined surface. A first door opening mechanism 43 is also provided on the charging bin 41. The left side of the hopper 1 can be in contact with the first inclined surface.

[0030] The dust-proof unloading assembly 5 includes a unloading bin 51. A second inclined surface is provided on the left side of the unloading bin 51. A unloading chute 52 is provided on the second inclined surface. A unloading port 521 is provided on the right inner wall of the unloading chute 52. A second door opening mechanism 53 is provided on the unloading bin 51. The right side of the hopper 1 can be in contact with the second inclined surface.

[0031] The left and right sides of the hopper 1 are respectively fitted with the first inclined surface and the second inclined surface, which can effectively prevent dust from escaping to the surroundings during the loading or unloading process, thereby improving the dust-proof effect of the feeding device, ensuring the health of nearby workers and effectively preventing dust from polluting the surrounding environment.

[0032] A discharge port 511 is provided at the bottom of the discharge bin 51, and the discharge port 511 is connected to the top of the shaft kiln 6 so that the raw materials can be poured into the shaft kiln 6 to complete the loading work;

[0033] The front sides of the loading bin 41 and the unloading bin 51 are connected to a first dust suction pipe 45 and a second dust suction pipe 512 respectively.

[0034] refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 5 and Figure 6 The first door opening mechanism 43 includes a first groove 431 opened on the first inclined surface, the bottom of the first groove 431 is connected to the top of the charging port 42, the depth of the first groove 431 is less than the depth of the charging port 42, the first door opening mechanism 43 also includes a push plate 432 fixedly connected to the bottom of the left inner wall of the first groove 431, and two first magnetic plates 21 are symmetrically fixedly connected to the left and right sides of the hopper 1. Two first iron plates 22 are symmetrically fixedly connected to the sides away from the first door panel 2 and the second door panel 3. The two first iron plates 22 can be respectively adsorbed with the two first magnetic plates 21, which can ensure that the first door panel 2 and the second door panel 3 are reliably closed to prevent leakage of raw materials during the loading process. The width of the first iron plate 22 is greater than the width of the first magnetic plate 21.

[0035] Specifically, after the hopper 1 moves downward along the track 12 and fits into the first inclined surface, the push plate 432 can block the first iron plate 22 on the first door panel 2, thereby pushing the first door panel 2 away from the left side of the hopper 1. In this way, the opening operation of the first door panel 2 can be completed synchronously during the movement of the hopper 1, saving loading time and thereby improving the efficiency of the loading operation.

[0036] refer to Figure 1 and Figure 4The second door opening mechanism 53 includes a cylinder 531 fixedly connected to the right inner wall of the unloading chute 52, the output end of the cylinder 531 is fixedly connected to the electromagnetic plate 532, and the top of the right side of the second door panel 3 is fixedly connected to the second iron plate 31, and the second iron plate 31 can be adsorbed with the electromagnetic plate 532.

[0037] Specifically, the second iron plate 31 can be adsorbed by the electromagnetic plate 532 when it is energized, and then the second door panel 3 can be driven to move upward by the contraction of the cylinder 531 to open the second door panel 3. This ensures that the unloading work is completed quickly and smoothly, thereby improving the loading efficiency and reliability of the loading device.

[0038] refer to Figure 2 and Figure 3 The dustproof loading assembly 4 also includes an auxiliary loading mechanism 44.

[0039] Specifically, more raw materials can be loaded into the hopper 1 in an orderly manner, further improving the efficiency of the loading operation.

[0040] refer to Figure 2 and Figure 3 The auxiliary loading mechanism 44 includes a limiting plate 441 movably inserted into the loading port 42, a feeding port 442 is opened on the right side of the limiting plate 441, a feeding pipe 443 is connected to the left end of the feeding port 442, and a pouring pipe 444 is connected to the top of the feeding pipe 443. The auxiliary loading mechanism 44 includes two groups of hydraulic cylinders 445 symmetrically fixedly connected between the front and rear inner walls of the loading bin 41, and the output ends of the two groups of hydraulic cylinders 445 are fixedly connected to the left side of the limiting plate 441. The width of the limiting plate 441 is equal to the width of the first door panel 2;

[0041] A through opening 411 is provided on the top of the loading bin 41, and the pouring pipe 444 and the feeding pipe 443 are located inside the loading bin 41. The pouring pipe 444 is located directly below the through opening 411, so that the dust generated when the raw materials are poured into the pouring pipe 444 will be located inside the loading bin 41, and then the first dust suction pipe 45 will suck away the dust, thereby effectively preventing the dust generated during loading from spreading around, thereby ensuring the dust-proof effect of the loading device.

[0042] Specifically, the limit plate 441 is pushed into the opening on the left side of the hopper 1 by the hydraulic cylinder 445, so that the raw materials poured into the hopper 1 through the feed port 442 can be limited to prevent the raw materials from occupying the opening on the left side of the hopper 1 and causing the first door panel 2 to be unable to be fully closed again, thereby improving the reliability of the loading operation. At the same time, it can also ensure that the raw materials fill the hopper 1 to the greatest extent, ensuring that the maximum amount of raw materials can be loaded each time loading, and effectively improving the loading efficiency of the loading device.

[0043] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A kiln top loading device for a lime shaft kiln, comprising a hopper (1), characterized in that: The bottom of the hopper (1) is fixedly connected to a fixed plate (11), and also includes two tracks (12) symmetrically distributed front and back. Two sets of pulleys (13) are symmetrically fixedly connected to the front and back sides of the fixed plate (11), and the two sets of pulleys (13) are respectively slidably connected to the two tracks (12). The left side and right side of the hopper (1) are respectively slidably connected to a first door panel (2) and a second door panel (3). The side areas of the first door panel (2) and the second door panel (3) are larger than two-thirds of the left and right side areas of the hopper (1). The hopper also includes a dust-proof loading component (4) and a dust-proof unloading component (5); The dustproof loading assembly (4) includes a loading bin (41), a first inclined surface is provided on the right side of the loading bin (41), a loading port (42) is provided on the first inclined surface, and a first door opening mechanism (43) is also provided on the loading bin (41), and the left side of the hopper (1) can be in contact with the first inclined surface; The dustproof unloading assembly (5) comprises a unloading bin (51), a second inclined surface is provided on the left side of the unloading bin (51), a unloading chute (52) is provided on the second inclined surface, a unloading port (521) is provided on the right inner wall of the unloading chute (52), a second door opening mechanism (53) is provided on the unloading bin (51), and the right side of the hopper (1) can be in contact with the second inclined surface.

2. The kiln top loading device of a lime shaft kiln according to claim 1, characterized in that: The first door opening mechanism (43) includes a first groove (431) provided on the first inclined surface, the bottom of the first groove (431) is connected to the top of the charging port (42), the depth of the first groove (431) is less than the depth of the charging port (42), the first door opening mechanism (43) also includes a push plate (432) fixedly connected to the bottom of the left inner wall of the first groove (431), two first magnetic plates (21) are symmetrically fixedly connected to the left and right side surfaces of the hopper (1), two first iron plates (22) are symmetrically fixedly connected to the side away from the first door panel (2) and the second door panel (3), the two first iron plates (22) can be respectively adsorbed with the two first magnetic plates (21), and the width of the first iron plate (22) is greater than the width of the first magnetic plate (21).

3. The kiln top loading device of a lime shaft kiln according to claim 2, characterized in that: The second door opening mechanism (53) comprises a cylinder (531) fixedly connected to the right inner wall of the discharge chute (52); an output end of the cylinder (531) is fixedly connected to an electromagnetic plate (532); a second iron plate (31) is fixedly connected to the top of the right side of the second door panel (3); and the second iron plate (31) can be adsorbed onto the electromagnetic plate (532).

4. The kiln top loading device of a lime shaft kiln according to claim 3, characterized in that: The dustproof charging assembly (4) further includes an auxiliary charging mechanism (44).

5. The kiln top loading device of a lime shaft kiln according to claim 4, characterized in that: The auxiliary loading mechanism (44) includes a limiting plate (441) movably inserted into the loading port (42), a feeding port (442) is provided on the right side of the limiting plate (441), a feeding pipe (443) is connected to the left end of the feeding port (442), and a pouring pipe (444) is connected to the top end of the feeding pipe (443). The auxiliary loading mechanism (44) includes two groups of hydraulic cylinders (445) symmetrically fixedly connected between the front and rear inner walls of the loading bin (41), the output ends of the two groups of hydraulic cylinders (445) are fixedly connected to the left side of the limiting plate (441), and the width of the limiting plate (441) is equal to the width of the first door panel (2).

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