Grading type double-chamber lime shaft kiln

Abstract

The utility model discloses a staged double-hearth lime shaft kiln which comprises a discharging cover, a spiral feeding machine, a heat storage plate, an upper furnace body, a tank body, a partition device, an igniter, an air supply pump box, a flow dividing pipe, an air control valve, a discharging assembly and a lower furnace body. The barrel body is arranged in the tank body, the material guide device is started to guide materials to flow into the lower furnace body from the upper furnace body or guide the materials to the position above the upper furnace body from the lower furnace body, then it is guaranteed that the upper furnace body and the lower furnace body can conduct heat storage or calcination synchronously, the materials are partitioned through the partition device, and the heat storage efficiency is improved. And materials are guided to flow into the lower furnace body from the upper furnace body or guided to the position above the upper furnace body from the lower furnace body, it is guaranteed that the upper furnace body and the lower furnace body can conduct calcination and heat storage synchronously, then through calcination of one kiln chamber and heat storage of the other kiln chamber, work of the two kiln chambers can be exchanged accordingly, and then the effect of increasing the utilization rate of limestone is achieved.

Description

Technical Field

[0001] The utility model relates to the field related to limestone production, in particular to a classified double-shaft lime shaft kiln. Background Art

[0002] Limestone (CaCO3) is an important ore resource, which is widely used in fields such as construction, metallurgy, chemistry, and medicine. The demand for limestone will continue to grow in the building materials field. Limestone enterprises need to improve production efficiency, reduce costs, and improve product quality in order to remain invincible in the market. Our company originally used raw materials with two particle sizes of 4-8 cm and 8-11 cm.

[0003] The Chinese patent document with the publication number CN218879751U discloses a central burner type lime kiln. Through the combined application of a solid biomass powder fuel counter-directional double-screw metering feeder, a combustion-supporting fan (high-pressure fan), a porous air distributor, and a conveying pipeline, the pressure required for the biomass fuel powder conveying and the pneumatic dilute-phase material conveying are realized, so as to achieve the purpose of synchronous conveying and combustion of the combustion-supporting air and the biomass fuel.

[0004] However, although this device can assist the kiln body to be heated through multiple sets of auxiliary equipment, since there is no preheating structure during the use of the device, the combustion kiln needs to heat the materials together after the materials are put in, resulting in a slow heating effect. This project envisions a classified double-shaft lime shaft kiln, which burns in one kiln chamber and stores heat in the other kiln chamber, and the functions of the two kiln chambers can be interchanged, thereby increasing the utilization rate of limestone and improving the heating efficiency of the equipment. Summary of the Utility Model

[0005] Therefore, in order to solve the above deficiencies, the utility model provides a classified double-shaft lime shaft kiln.

[0006] To achieve the above object, the utility model adopts the following technical solutions: A grading double-chamber lime shaft kiln, comprising a discharging hood, a screw feeder, regenerative plates, an upper furnace body, a tank body, a partition device, an igniter, an air supply pump box, a shunt pipe, a gas control valve, a blanking assembly, and a lower furnace body. The discharging hood is arranged at the top of the upper furnace body. The screw feeder is fixed to the left end of the discharging hood. There are multiple groups of regenerative plates, and the multiple groups of regenerative plates are respectively arranged on the outer sides of the upper furnace body and the lower furnace body. A partition device is installed inside the tank body. The igniter is fixed to the front end of the tank body. The air supply pump box is fixed to the right end of the blanking assembly. A shunt pipe is installed on the top of the air supply pump box, and the shunt pipe is communicated with the right end of the tank body. The gas control valve is installed inside the shunt pipe. The blanking assembly is arranged at the bottom of the lower furnace body, and the lower furnace body is fixed to the bottom of the tank body. The partition device includes a cylinder body, a feeding pipe, a feed pipe, a discharging pipe, an electric control valve, and a feeder. The cylinder body is fixed inside the tank body. A feeding pipe is arranged at the top of the cylinder body, and the feeding pipe is communicated with the top of the feed pipe. The feed pipe is communicated with the bottom of the cylinder body. The discharging pipe is arranged at the left end of the feed pipe, and the electric control valve is installed at the left end of the discharging pipe. The feeder is fixed inside the cylinder body.

[0007] Preferably, the feeder includes a housing, a servo motor, a transmission gear set, a feeding cylinder, and a feeding shaft. The housing is fixed inside the cylinder body. The servo motor is installed inside the housing. The servo motor is in transmission connection with the inside of the transmission gear set by a coupling. The transmission gear set is in nested transmission with the top of the feeding shaft. The feeding cylinder is arranged at the bottom of the housing, and the feeding shaft is rotatably connected to the inside of the feeding cylinder.

[0008] More preferably, the blanking assembly includes a blanking bin, a blanking push rod, a blanking block, a blanking hopper, and a dust removal pump. The blanking bin is arranged below the lower furnace body. The blanking push rod is fixed to the right end of the blanking hopper. The blanking push rod is in transmission connection with the right end of the blanking block. The blanking block is slidably connected to the inside of the blanking hopper. A dust removal pump is arranged at the bottom of the blanking hopper.

[0009] More preferably, there are two groups of feeding pipes, and the two groups of feeding pipes are arranged horizontally at the top of the cylinder body.

[0010] More preferably, the discharging pipes are symmetrically arranged inside the cylinder body and are communicated with the bottoms of the feeding pipes.

[0011] More preferably, the feed pipe and the feeder are arranged in a straight line inside the cylinder body.

[0012] More preferably, two discharge ports are arranged at the top of the feeding cylinder.

[0013] Preferably, the transmission gear set is composed of two sets of transmission gears and is vertically matched on the same vertical line.

[0014] Advantages of the utility model:

[0015] With the partition device of the utility model, the cylinder body is arranged inside the tank body, so that the cylinder body can partition the materials, ensuring that the materials can be calcined inside the upper furnace body, while the lower furnace body can store heat. By starting the material guide, the materials are guided to flow from the upper furnace body to the inside of the lower furnace body, or from the lower furnace body to above the upper furnace body, thus ensuring that the upper furnace body and the lower furnace body can store heat or calcine synchronously. When there are materials remaining in the discharge pipe, the electric control valve can be opened to discharge the materials remaining in the discharge pipe into the lower furnace body, preventing the situation of materials remaining in the discharge pipe. Therefore, the materials are partitioned by the partition device, and the materials are guided to flow from the upper furnace body to the inside of the lower furnace body, or from the lower furnace body to above the upper furnace body, ensuring that the upper furnace body and the lower furnace body can calcine and store heat synchronously. Then, one kiln chamber is used for calcination and the other for heat storage, and the functions of the two kiln chambers can be interchanged, thus achieving the effect of increasing the utilization rate of limestone.

[0016] With the material guide of the utility model, by starting the servo motor to drive the transmission gear set to rotate, the transmission gear set drives the material guide shaft to rotate through nested transmission, enabling the material guide shaft to stir the materials refined above the upper furnace body and the feed pipe, so that the materials can fall into the lower furnace body. Therefore, by starting the material guide, the materials are guided to flow from the upper furnace body to the inside of the lower furnace body, or from the lower furnace body to above the upper furnace body, promoting one furnace body to have materials for calcination and the other furnace body to store heat by igniting gas, thus ensuring the effect that the upper furnace body and the lower furnace body can store heat or calcine synchronously. Description of the drawings

[0017] Figure 1 is the three-dimensional structure schematic diagram of the utility model;

[0018] Figure 2 is the planar structure schematic diagram of the utility model;

[0019] Figure 3 is the three-dimensional structure schematic diagram of the partition device of the utility model;

[0020] Figure 4 is the internal structure schematic diagram of the partition device of the utility model;

[0021] Figure 5 is the structure schematic diagram of the material guide of the utility model;

[0022] Figure 6 is the structure of the blanking component in the utility model.

[0023] Wherein: the feeding hood - 1, the spiral feeder - 2, the regenerative plate - 3, the upper furnace body - 4, the tank body - 5, the partition device - 6, the igniter - 7, the air supply pump box - 8, the shunt pipe - 9, the air control valve - 10, the blanking assembly - 11, the lower furnace body - 12, the cylinder body - 61, the material guiding pipe - 62, the feeding pipe - 63, the discharging pipe - 64, the electric control valve - 65, the material guide - 66, the housing - 661, the servo motor - 662, the transmission gear set - 663, the material guiding cylinder - 664, the material guiding shaft - 665, the blanking bin - 111, the blanking push rod - 112, the blanking block - 113, the blanking hopper - 114, the dust removal pump - 115. Specific Embodiment

[0024] In order to further explain the technical solution of the present invention, it will be elaborated in detail through specific embodiments below.

[0025] Please refer to Figure 1 - Figure 2 , the present invention provides a grading double - chamber lime shaft kiln, including a feeding hood 1, a spiral feeder 2, a regenerative plate 3, an upper furnace body 4, a tank body 5, a partition device 6, an igniter 7, an air supply pump box 8, a shunt pipe 9, an air control valve 10, a blanking assembly 11, and a lower furnace body 12. The feeding hood 1 is arranged at the top of the upper furnace body 4. The spiral feeder 2 is fixed to the left end of the feeding hood 1. There are multiple groups of regenerative plates 3, and the multiple groups of regenerative plates 3 are respectively arranged on the outer sides of the upper furnace body 4 and the lower furnace body 12. A partition device 6 is installed inside the tank body 5. The igniter 7 is fixed to the front end of the tank body 5. The air supply pump box 8 is fixed to the right end of the blanking assembly 11. A shunt pipe 9 is installed on the top of the air supply pump box 8, and the shunt pipe 9 is communicated with the right end of the tank body 5. The air control valve 10 is installed inside the shunt pipe 9. The blanking assembly 11 is arranged at the bottom of the lower furnace body 12, and the lower furnace body 12 is fixed to the bottom of the tank body 5.

[0026] Please refer to Figure 3 - 4 , the present invention provides a grading double - chamber lime shaft kiln. The partition device 6 includes a cylinder body 61, a material guiding pipe 62, a feeding pipe 63, a discharging pipe 64, an electric control valve 65, and a material guide 66. The cylinder body 61 is fixed inside the tank body 5. A material guiding pipe 62 is arranged at the top of the cylinder body 61. The material guiding pipe 62 is communicated with the top of the feeding pipe 63. The feeding pipe 63 is communicated with the bottom of the cylinder body 61. The discharging pipe 64 is arranged at the left end of the feeding pipe 63. The electric control valve 65 is installed at the left end of the discharging pipe 64. The material guide 66 is fixed inside the cylinder body 61.

[0027] In this embodiment, there are two groups of material guiding pipes 62, and the two groups of material guiding pipes 62 are arranged horizontally at the top of the cylinder body 61. The discharging pipes 64 are symmetrically arranged inside the cylinder body 61, and the discharging pipes 64 are communicated with the bottoms of the material guiding pipes 62. The feeding pipe 63 and the material guide 66 are arranged in a straight line inside the cylinder body 61.

[0028] Please refer toFigure 5 , the present utility model provides a hierarchical double-shaft lime shaft kiln. The feeder 66 includes a housing 661, a servo motor 662, a transmission gear set 663, a feed cylinder 664, and a feed shaft 665. The housing 661 is fixed to the inside of the cylinder body 61. The servo motor 662 is installed inside the housing 661. The servo motor 662 is in meshing transmission with the inside of the transmission gear set 663 by means of a coupling. The transmission gear set 663 is in nested transmission with the top of the feed shaft 665. The feed cylinder 664 is arranged at the bottom of the housing 661. The feed shaft 665 is rotatably connected to the inside of the feed cylinder 664.

[0029] In this embodiment, two discharge ports are arranged at the top of the feed cylinder 664. The transmission gear set 663 is composed of two transmission gears and is vertically matched on the same vertical line.

[0030] Please refer to Figure 6 , the present utility model provides a hierarchical double-shaft lime shaft kiln. The blanking assembly 11 includes a blanking bin 111, a blanking push rod 112, a blanking block 113, a blanking hopper 114, and a dust removal pump 115. The blanking bin 111 is arranged below the lower furnace body 12. The blanking push rod 112 is fixed to the right end of the blanking hopper 114. The blanking push rod 112 is in transmission connection with the right end of the blanking block 113. The blanking block 113 is slidably connected to the inside of the blanking hopper 114. The dust removal pump 115 is arranged at the bottom of the blanking hopper 114.

[0031] Refer to Figure 1 - Figure 5 , during use, the material is placed inside the screw feeder 2. Then, the screw feeder 2 is started to introduce the material into the discharge hood 1, so that the material falls from the discharge hood 1 into the inside of the upper furnace body 4 and the partition device 6. At the same time, the upper furnace body 4 and the lower furnace body 12 can be preheated by the installed heat storage plates 3;

[0032] Then, the gas supply pump box 8 is started to introduce gas into the gas distribution pipe 9. During this process, the content flowing into the upper furnace body 4 and the lower furnace body 12 can be controlled by the air control valve 10, which can ensure that the hot gas can be burned faster. Further, the gas is ignited by the igniter 7, so that the material can be calcined inside the upper furnace body 4 and the partition device 6, and the lower furnace body 12 can also cooperate with the partition device 6 for heat storage;

[0033] It is arranged inside the tank body 5 through the cylinder body 61, so that the cylinder body 61 can partition the materials, ensuring that the materials can be calcined inside the upper furnace body 4, while the lower furnace body 4 can store heat. Next, start the servo motor 662 to drive the transmission gear set 663 to rotate. The transmission gear set 663 drives the material guiding shaft 665 to rotate through nested transmission, enabling the material guiding shaft 665 to stir the materials refined above the upper furnace body 4 and the feed pipe 63, so that the materials can fall into the lower furnace body 12. Then, start the material guide 66 to guide the materials to flow from the upper furnace body 4 into the lower furnace body 12, or from the lower furnace body 12 to above the upper furnace body 4, ensuring that the upper furnace body 4 and the lower furnace body 12 can store heat or calcine synchronously. When there are materials remaining in the discharge pipe 64, the discharge pipe 64 can be opened through the electric control valve 65 to discharge the materials remaining in the discharge pipe 64 into the lower furnace body 12, preventing the situation of materials remaining in the discharge pipe 64. Thus, the material is partitioned by the partition device 6, and the materials are guided to flow from the upper furnace body 4 into the lower furnace body 12, or from the lower furnace body 12 to above the upper furnace body 4, enabling one furnace body to have materials for calcination and the other furnace body to store heat by igniting gas, ensuring that the upper furnace body 4 and the lower furnace body 12 can calcine and store heat synchronously. Then, one kiln chamber is used for calcination and the other kiln chamber is used for heat storage, and the functions of the two kiln chambers can be interchanged, thereby increasing the utilization rate of limestone;

[0034] Next, start the blanking push rod 112 to pull the blanking block 113 to move along the blanking bin 111, so that the calcined products in the lower furnace body 12 can fall into the blanking bin 111 and be pushed out. During this process, the dust removal pump 115 can remove particulate impurities in the products, ensuring the purity of the products. Then, the products are discharged through the blanking assembly 11, thus solving the problem of inconvenience in the process of discharging products by traditional equipment.

[0035] The control mode of the present utility model is controlled by manually starting and closing the switch. The wiring diagram of the power element and the power supply are common knowledge in the field, and the present utility model mainly protects mechanical devices, so the control mode and wiring layout are not explained in detail in the present utility model.

[0036] The control mode of the present utility model is automatically controlled by a controller. The control circuit of the controller can be realized by simple programming by those skilled in the art, and the power supply is also common knowledge in the field. Moreover, the present utility model mainly protects mechanical devices, so the control mode and circuit connection are not explained in detail in the present utility model.

[0037] The above are only the preferred examples of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A graded double-chamber lime shaft kiln, comprising a discharge cover (1), a spiral feeder (2), a heat storage plate (3), an upper furnace body (4), a tank body (5), a partition device (6), an igniter (7), an air supply pump box (8), a shunt pipe (9), an air control valve (10), a discharge assembly (11), and a lower furnace body (12), wherein the discharge cover (1) is arranged on the top of the upper furnace body (4); Features: The partition device (6) comprises a cylinder (61), a material guide pipe (62), a feed pipe (63), a discharge pipe (64), an electric control valve (65), and a material guide (66); the cylinder (61) is fixed to the interior of the tank (5); a material guide pipe (62) is provided at the top of the cylinder (61); the material guide pipe (62) is connected to the top of the feed pipe (63); the feed pipe (63) is connected to the bottom of the cylinder (61); the discharge pipe (64) is provided at the left end of the feed pipe (63); the electric control valve (65) is installed at the left end of the discharge pipe (64); and the material guide (66) is fixed to the interior of the cylinder (61).

2. A hierarchical double-chamber lime shaft kiln according to claim 1, characterized in that: The material guide (66) comprises a housing (661), a servo motor (662), a transmission gear set (663), a material guide cylinder (664), and a material guide shaft (665); the housing (661) is fixed to the interior of the cylinder (61); the servo motor (662) is installed inside the housing (661); the servo motor (662) adopts a coupling and an internal interlocking transmission with the transmission gear set (663); the transmission gear set (663) and the top of the material guide shaft (665) are nested for transmission; the material guide cylinder (664) is arranged at the bottom of the housing (661); and the material guide shaft (665) is rotatably connected to the interior of the material guide cylinder (664).

3. A hierarchical double-chamber lime shaft kiln according to claim 1, characterized in that: The material discharge assembly (11) comprises a material discharge bin (111), a material discharge push rod (112), a material discharge block (113), a material discharge hopper (114), and a dust removal pump (115); the material discharge bin (111) is arranged below the lower furnace body (12); the material discharge push rod (112) is fixed to the right end of the material discharge hopper (114); the material discharge push rod (112) is transmission-connected to the right end of the material discharge block (113); the material discharge block (113) is slidably connected to the inside of the material discharge hopper (114); and a dust removal pump (115) is arranged at the bottom of the material discharge hopper (114).

4. A hierarchical double-chamber lime shaft kiln according to claim 1, characterized in that: The material guide pipes (62) are provided in two groups, and the two groups of material guide pipes (62) are arranged at the same level on the top of the cylinder (61).

5. The hierarchical double-chamber lime shaft kiln according to claim 1, characterized in that: The discharge pipe (64) is symmetrically arranged inside the cylinder (61), and the discharge pipe (64) is connected to the bottom of the guide pipe (62).

6. A hierarchical double-chamber lime shaft kiln according to claim 1, characterized in that: The feed pipe (63) and the material guide (66) are arranged on the cylinder (61) in the same straight line.

7. A hierarchical double-chamber lime shaft kiln according to claim 2, characterized in that: The top of the material guide cylinder (664) is provided with two groups of discharge ports.

8. The hierarchical double-chamber lime shaft kiln according to claim 2, characterized in that: The transmission gear set (663) is composed of two sets of transmission gears, which are vertically matched on the same vertical line.

9. The hierarchical double-chamber lime shaft kiln according to claim 1, characterized in that: The spiral feeder (2) is fixed to the left end of the discharge cover (1), the heat storage plate (3) is provided with a plurality of groups, and the plurality of groups of heat storage plates (3) are respectively arranged on the outer sides of the upper furnace body (4) and the lower furnace body (12), a partition device (6) is installed inside the tank body (5), the igniter (7) is fixed to the front end of the tank body (5), the air supply pump box (8) is fixed to the right end of the discharge assembly (11), a shunt pipe (9) is installed on the top of the air supply pump box (8), the shunt pipe (9) is connected to the right end of the tank body (5), the air control valve (10) is installed inside the shunt pipe (9), the discharge assembly (11) is arranged at the bottom of the lower furnace body (12), and the lower furnace body (12) is fixed to the bottom of the tank body (5).

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