Counterflow calciner

Abstract

The utility model provides a countercurrent type calcining furnace relates to calcining furnace technical field, including calcining furnace body, charging eccentric device, storage hopper, feeding device, observation hole, probe ruler device, stirring device and supporting device, charging eccentric device fixed mounting is in the top of calcining furnace body, and the storage hopper is connected with charging eccentric device, and the feeding device sets up below charging eccentric device, and the observation hole contains at least two observation holes, and the probe ruler device fixed mounting is in one side of the top of calcining furnace body, and the stirring device detachable installation is in observation hole no.

Description

Technical Field

[0001] This utility model relates to the field of calcining furnace technology, specifically to a counter-flow calcining furnace. Background Technology

[0002] In the carbon industry, the counter-current tank calciner is the core equipment for petroleum coke calcination. The top cover of its first tank not only serves to seal and support the weight of the material column, but also must provide passageways for operations such as feeding, observation, and unblocking.

[0003] The existing counter-current tank calciner has a significant defect in its first-layer tank cover structure. It uses a thickened iron plate design with dimensions of 1780mm×360mm×3400mm. However, in this layout, the observation hole is fixed on one side of the tank, 1600mm away from the rear of the probe. This means that when the raw material cokes near the probe during calcination (i.e., the raw material brittles or hardens), operators cannot directly access the coking area through the existing observation hole. They must manually clear the coking area with an iron rod, which is not only time-consuming but also significantly increases labor intensity due to the limited operating space and high temperature environment. Operators are at risk of heat stress or burns from prolonged exposure to extreme temperatures. Furthermore, delays in coking treatment may cause the calciner to shut down, reducing overall production efficiency.

[0004] Therefore, there is an urgent need to develop a counter-current calcining furnace to solve the above problems. Utility Model Content

[0005] This utility model is a counter-current calcining furnace. By integrating the gas supply pump body and various control valves, and installing the gas supply pump body components inside the valve plate unit, a high degree of integration of the gas supply pump body and various control valves is achieved. By designing the gas pipeline to use an internal gas circulation mode, the gas utilization rate is improved, energy consumption is reduced, and the above-mentioned technical problems are effectively solved.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a counter-current calcining furnace, comprising a furnace body, a feeding eccentric device, a storage hopper, a feeding device, an observation hole, a probe device, a stirring device, and a support device. The feeding eccentric device is fixedly installed on the top of the furnace body. The storage hopper is connected to the feeding eccentric device. The feeding device is located below the feeding eccentric device. The observation hole includes at least two observation holes, which are symmetrically arranged on both sides of the furnace body. The probe device is fixedly installed on one side of the top of the furnace body. The stirring device is detachably installed at observation hole two and extends through the furnace body into the heating chamber. The stirring device is fixedly installed on one side of the observation hole and / or movably installed above the furnace body via a support device.

[0007] Preferably, the stirring device includes a stirring fixing module, a steel rod, a transmission module, and a power module. The stirring fixing module limits the movement of the steel rod. The rear end of the steel rod is provided with a through hole. The rear end of the steel rod is movably connected to the transmission module. The power module is movably connected to one side of the transmission module.

[0008] Preferably, the stirring and fixing module includes a base, a tile base, and a copper tile. The tile base is fixedly connected to the top of the base, and the copper tile is fixedly connected to the inner side of the tile base. The copper tile limits the movement of the steel rod.

[0009] Preferably, the transmission module includes a pin, a connecting rod, a bearing housing, a crankshaft, and bearing bushes. The connecting rod and the steel rod are movably connected by the pin. The bearing housing is fixedly connected to one side of the base. The crankshaft is movably connected between the bearing housings. The crankshaft is hinged and fixed to the power module.

[0010] Preferably, the crankshaft includes a connecting rod journal, a crank, and an end shaft. The connecting rod journal is fixedly connected to one side of the crank, and the end shaft is fixedly connected to the other side of the crank. The connecting rod is located outside the bearing shell and is fixedly connected to the bearing shell. The bearing shell is located outside the connecting rod journal and is rotatably connected to the connecting rod journal.

[0011] Preferably, the bearing bush is a flanged bearing bush to prevent abnormal wear or axial movement between the connecting rod and the crankshaft.

[0012] Preferably, the power module includes a coupling, a cycloidal reducer, and a motor. The coupling is fixedly connected to one side of the crankshaft, the cycloidal reducer is fixedly connected to the coupling, and the cycloidal reducer is hinged to the motor.

[0013] Preferably, the support device includes a platform, a pivot, and a tripod. The tripod is movably connected to the platform via the pivot, and one side of the platform is fixedly connected to the base.

[0014] Beneficial effects

[0015] This utility model provides a counter-current calcining furnace, which has the following advantages compared with the existing technology:

[0016] This invention adds multiple new observation holes to one side of the existing cover plate probe. When coking occurs in the probe area, operators can directly and quickly clear the blockage through the new holes, significantly shortening the processing time.

[0017] This invention introduces a mechanical material stirring device, which drives a cycloidal reducer, coupling, crankshaft and connecting rod mechanism by an electric motor to drive a steel rod to reciprocate within the bearing seat, thereby achieving automated material unblocking. In this invention, the stirring device can be fixed to the newly added observation hole or moved by a support device to stir the material at a designated location in the calcining furnace.

[0018] This invention not only reduces the intensity of manual operation, but also ensures continuous and stable operation of the calcination process, reduces downtime caused by coking, significantly improves production efficiency, and significantly alleviates the health threat of high temperature to operators, creating a safer working environment.

[0019] Overall, the present invention not only solves the core problems of unreasonable spatial layout and excessive reliance on manual labor in the prior art, but also brings quantifiable economic and safety benefits, providing an efficient and reliable solution for the calcination process in the carbon industry. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the device structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the stirring device of this utility model;

[0023] Figure 3 This is a partial cross-sectional view of the stirring device of this utility model;

[0024] Figure 4 This is a schematic diagram of the support device structure of this utility model.

[0025] In the picture:

[0026] 1. Calcining furnace body; 2. Eccentric feeding device; 3. Storage hopper; 4. Feeding device; 5. Observation hole one; 6. Material probe device; 7. Observation hole two.

[0027] 8. Mixing device; 801. Base; 802. Bearing seat; 803. Copper bearing; 804. Steel rod; 805. Pin; 806. Connecting rod; 807. Bearing housing; 808. Crankshaft; 809. Bearing bush; 810. Coupling; 811. Cycloidal reducer; 812. Motor.

[0028] 9 Support devices, 901, platform, 902, pivot, 903, tripod. Detailed Implementation

[0029] To make the technical problems, technical solutions and beneficial effects of this utility model clearer, this utility model will be further described in detail with reference to the embodiments and accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model. The technical solutions of this utility model will be described in detail below with reference to the embodiments and accompanying drawings, but the scope of protection is not limited thereto.

[0030] Please see Figure 1-4 This utility model provides a technical solution:

[0031] A counter-current calcining furnace includes a furnace body 1, a feeding eccentric device 2, a storage hopper 3, a feeding device 4, observation holes, a material probe device 6, a stirring device 8, and a support device 9. The feeding eccentric device 2 is fixedly installed at the center of the top of the furnace body 1 by high-strength bolts. The storage hopper 3 is sealed to the outlet of the feeding eccentric device 2 via a flange connection. The feeding device 4 is a vibrating feeder and is located at a predetermined distance directly below the feeding eccentric device 2. The observation holes include observation hole one 5 and observation hole two 7, wherein observation hole one 5 and observation hole two 7 are based on the central axis of the calcining furnace. The holes are symmetrically arranged in the middle of the two side walls of the calcining furnace body 1, and the diameters are configured according to standard specifications and equipped with high-temperature resistant ceramic sealing covers. The material probe device 6 is fixedly installed on the top edge of the calcining furnace body 1 through the welded base 801. The stirring device 8 is detachably installed in the observation hole 2 7, and the steel rod 804 of the stirring device 8 penetrates the refractory layer of the calcining furnace body 1 and extends to a set depth inside the heating chamber. The stirring device 8 achieves its function through two installation methods: one is to be directly fixed to the outside of the observation hole through the flange, and the other is to be suspended and installed on the platform 901 above the calcining furnace through the movable mechanism of the support device 9.

[0032] In some embodiments, the stirring device 8 includes a stirring fixing module, a steel rod 804, a transmission module, and a power module, wherein the copper bushing 803 of the stirring fixing module provides axial sliding limit for the steel rod 804; the rear end of the steel rod 804 is provided with a through hole and is movably connected to the connecting rod 806 of the transmission module through a pin 805; the output end of the crankshaft 808 of the transmission module is rigidly connected to the coupling 810 of the power module through a key connection.

[0033] In some embodiments, the stirring and fixing module includes a base 801, a tile 802, and a copper tile 803. The base 801 is made of cast steel and the tile 802 is fixedly connected to it by a bolt assembly. The inner side of the tile 802 is provided with an annular groove, and the copper tile 803 is press-fitted by interference fit. The inner hole of the copper tile 803 provides precise guidance for the steel rod 804.

[0034] In some embodiments, the transmission module includes a pin 805, a connecting rod 806, a bearing housing 807, a crankshaft 808, and a bearing bush 809. The front end of the connecting rod 806 forms a hinged pair with a steel rod 804 through a high-strength pin 805. Two bearing housings 807 are fixedly connected to the side of the base 801 by anchor bolts, and the crankshaft 808 is movably supported between the two bearing housings 807 by bearings. The end of the crankshaft 808 is connected to the coupling 810 of the power module through a reamed hole bolt to achieve backlash-free transmission.

[0035] In some embodiments, the crankshaft 808 includes a connecting rod 806 journal, a crank, and an end shaft, wherein the crank is connected to the connecting rod 806 journal by a fillet transition, and the other end is connected to the end shaft; the connecting rod 806 is disposed on the outside of the bearing bush 809 and is fixedly connected to the bearing bush 809 by bolts; the bearing bush 809 adopts a split structure, and its inner surface is cast with an alloy layer to form a sliding friction pair with the connecting rod 806 journal.

[0036] In some embodiments, the bearing bush 809 is a flanged bearing bush 809, which has anti-overturning flanges of a set height on both sides. The flanges maintain an axial clearance with the crank side, which can effectively prevent abnormal wear or axial movement between transmission components.

[0037] In some embodiments, the power module includes a coupling 810, a cycloidal reducer 811, and a motor 812. The coupling 810 is fixedly connected to the end of the crankshaft 808 via a flat key. The cycloidal reducer 811 is of a specific model, and its input shaft is coaxially connected to the output shaft of the explosion-proof motor 812 via a flexible coupling 810. The reducer housing is fixed to the base 801 via a shock-absorbing pad.

[0038] In some embodiments, the support device 9 includes a platform 901, a pivot 902 and a tripod 903. The top of the tripod 903 is rotatably connected to the platform 901 via the pivot 902. A positioning boss is welded to the upper surface of the platform 901, and it is rigidly fixed to the base 801 of the stirring device 8 by a bolt assembly.

[0039] In some embodiments, a plurality of observation holes are provided above the calcining furnace, and the stirring device 8 is fixed to one side of the support device 9. The material piled at a designated position in the calcining furnace is stirred by moving the position of the support device 9.

[0040] Example 1

[0041] Two observation holes are symmetrically opened on both sides of the calcining furnace body 1. The hole diameter is of standard specification and equipped with high-temperature resistant ceramic sealing cover, which significantly eliminates blind spots in operation. The stirring device 8 adopts a detachable modular design, including a stirring fixing module, a transmission module and a power module: the stirring fixing module is fixedly connected to the bearing seat 802 structure by a cast steel base 801 and a bolt group. The bearing seat 802 has a copper guide sleeve press-fitted inside to implement precise axial limit for the high-temperature alloy steel rod 804; the core of the transmission module is the crank connecting rod 806 mechanism, in which the crankshaft 808 is supported on the side of the base 801 by bearings. Its eccentricity is optimized and works in conjunction with the split flange bearing 809. The anti-overturning edges set on both sides of the bearing 809 maintain a specific axial clearance with the side of the crank, effectively suppressing abnormal wear and axial movement during the transmission process; the power module is driven by an explosion-proof motor 812, which transmits power to the cycloidal pinwheel reducer through a flexible coupling 810, and finally achieves backlash-free power transmission of the crankshaft 808 through a key connection.

[0042] The stirring device 8 is directly fixed to the outside of the observation hole via a flange structure, forming a compact working unit.

[0043] Example 2

[0044] The furnace body 1 has 24 observation holes symmetrically opened on both sides. The stirring device 8 is suspended and installed on the platform 901 of the rotating shaft 902 by means of the tripod 903 of the support device 9. The ball joint structure on the platform 901 allows the steel rod 804 to be freely adjusted within the spatial angle range, so as to adapt to the coking treatment needs of different positions.

[0045] Example 3

[0046] The furnace body 1 has 24 observation holes symmetrically opened on both sides. One stirring device 8 is fixedly installed in the observation hole, and the other stirring device 8 is suspended from the platform 901 of the rotating shaft 902 by means of the tripod 903 of the support device 9. The ball joint structure on the platform 901 allows the steel rod 804 to be freely adjusted within the spatial angle range, so as to adapt to the coking treatment needs of different positions.

[0047] Work process: When the motor 812 starts, the power is reduced and increased in torque to drive the crankshaft 808 to rotate, which is converted into the linear reciprocating material-push motion of the steel rod 804. Its stroke and frequency can be dynamically adjusted according to the coking density. If the mechanical processing does not meet expectations, the operator can immediately open the sealing cover of other observation holes and stir by adjusting the position of the stirring device 8.

[0048] The above description is a further detailed explanation of the present invention in conjunction with specific preferred embodiments. For those skilled in the art to which the present invention pertains, several simple deductions or substitutions can be made without departing from the present invention, and all such deductions or substitutions should be considered as falling within the scope of patent protection determined by the submitted claims.

Claims

1. A counter-current calcining furnace, comprising a furnace body, an eccentric feeding device, a storage hopper, a feeding device, an observation hole, a material probe device, a stirring device, and a supporting device, characterized in that, The eccentric feeding device is fixedly installed on the top of the calcining furnace body. The storage hopper is connected to the eccentric feeding device. The feeding device is located below the eccentric feeding device. The observation hole includes at least one observation hole and one observation hole. The one observation hole and the two observation holes are symmetrically arranged on both sides of the calcining furnace body. The probe is fixedly installed on one side of the top of the calcining furnace body. The stirring device is detachably installed in the two observation holes. The stirring device penetrates the calcining furnace body and extends into the heating chamber. The stirring device is fixedly installed on one side of the observation hole and / or movably installed above the calcining furnace through a support device.

2. The counter-current calcining furnace according to claim 1, characterized in that: The stirring device includes a stirring fixing module, a steel rod, a transmission module, and a power module. The stirring fixing module limits the movement of the steel rod. The rear end of the steel rod has a through hole. The rear end of the steel rod is movably connected to the transmission module. The power module is movably connected to one side of the transmission module.

3. The counter-current calcining furnace according to claim 2, characterized in that: The stirring and fixing module includes a base, a tile base, and a copper tile. The tile base is fixedly connected to the top of the base, and the copper tile is fixedly connected to the inner side of the tile base. The copper tile limits the movement of the steel rod.

4. The counter-current calcining furnace according to claim 3, characterized in that: The transmission module includes a pin, a connecting rod, a bearing housing, a crankshaft, and bearing bushes. The connecting rod and the steel rod are movably connected by the pin. The bearing housing is fixedly connected to one side of the base. The crankshaft is movably connected between the bearing housings. The crankshaft is hinged and fixed to the power module.

5. A counter-current calcining furnace according to claim 4, characterized in that: The crankshaft includes a connecting rod journal, a crank, and an end shaft. The connecting rod journal is fixedly connected to one side of the crank, and the end shaft is fixedly connected to the other side of the crank. The connecting rod is located outside the bearing shell and is fixedly connected to the bearing shell. The bearing shell is located outside the connecting rod journal and is rotatably connected to the connecting rod journal.

6. A counter-current calcining furnace according to claim 5, characterized in that: The bearing bush is a flanged bearing bush, which prevents abnormal wear or axial movement between the connecting rod and the crankshaft.

7. A counter-current calcining furnace according to claim 4, characterized in that: The power module includes a coupling, a cycloidal reducer, and a motor. The coupling is fixedly connected to one side of the crankshaft, the cycloidal reducer is fixedly connected to the coupling, and the cycloidal reducer is hinged to the motor.

8. A counter-current calcining furnace according to claim 3, characterized in that: The support device includes a platform, a pivot, and a tripod. The tripod is movably connected to the platform via the pivot, and one side of the platform is fixedly connected to the base.

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