Potassium sulfate Mannheim furnace with graphite carbon rods uniformly distributed in heating channel

Abstract

The invention discloses a potassium sulfate Mannheim furnace with graphite carbon rods uniformly distributed in a heating channel. The potassium sulfate Mannheim furnace comprises a potassium sulfate Mannheim furnace body and a plurality of graphite carbon rod heating devices. The potassium sulfate Mannheim furnace body comprises an outer furnace body and an inner furnace body, a heating chamber is formed between the outer furnace body and the inner furnace body, and a material stirring chamber is formed in the inner furnace body; the furnace wall of the outer furnace body is provided with a plurality of transformation windows, the plurality of graphite carbon rod heating devices are in one-to-one correspondence with the plurality of transformation windows, and each graphite carbon rod heating device is detachably mounted in the heating chamber through the corresponding transformation window. According to the potassium sulfate Mannheim furnace with the graphite carbon rods evenly distributed in the heating channel, a traditional natural gas combustion scheme is replaced, installation and maintenance of the graphite carbon rods are facilitated, and meanwhile the graphite carbon rods are effectively protected so that the service life can be prolonged.

Description

Technical Field

[0001] The invention relates to the technical field of potassium sulfate Mannheim furnaces, in particular to a potassium sulfate Mannheim furnace in which graphite carbon rods are uniformly distributed in a heating channel. Background Art

[0002] The traditional potassium sulfate Mannheim furnace mainly uses natural gas for heating. During operation, most of the heat released by the combustion of natural gas is carried away by the exhaust gas, resulting in low energy utilization efficiency.

[0003] During the process of technological transformation, enterprises are trying to find solutions that can replace traditional natural gas combustion. For example, the use of graphite carbon rod electric heating is a better alternative. Graphite carbon rod electric heating has the advantages of high heat conversion rate, accurate temperature control, energy saving and environmental protection.

[0004] How to modify the structure of the existing potassium sulfate Mannheim furnace so that it can better adapt to the installation and maintenance of graphite carbon rods is a technical problem that needs to be solved; in addition, there are a large amount of corrosive gases in the potassium sulfate Mannheim furnace, and the graphite carbon rods are easily affected by these corrosive gases and their service life is shortened. How to effectively protect the graphite carbon rods in the potassium sulfate Mannheim furnace is also a technical problem that needs to be solved. Summary of the Invention

[0005] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a potassium sulfate Mannheim furnace in which graphite carbon rods are evenly distributed in the heating channel, replacing the traditional natural gas combustion scheme, facilitating the installation and maintenance of the graphite carbon rods, and effectively protecting the graphite carbon rods to increase their service life.

[0006] The object of the present invention is achieved through the following technical solutions:

[0007] A potassium sulfate Mannheim furnace with graphite carbon rods uniformly distributed in a heating channel, comprising: a potassium sulfate Mannheim furnace body, a plurality of graphite carbon rod heating devices;

[0008] The potassium sulfate Mannheim furnace body includes an outer furnace body and an inner furnace body, a heating chamber is formed between the outer furnace body and the inner furnace body, and the inner furnace body forms a material stirring chamber;

[0009] The outer furnace body has a plurality of transformation windows on its wall, and the plurality of graphite carbon rod heating devices correspond to the plurality of transformation windows one by one. Each graphite carbon rod heating device can be detachably installed in the heating chamber through the corresponding transformation window.

[0010] In one embodiment,

[0011] The graphite carbon rod heating device includes: a window sealing ring, a base ring, an air supply outer tube, a heating inner tube, and a plurality of air control fins;

[0012] The window sealing ring is fixed to the modified window, the air supply outer tube is detachably mounted in the window sealing ring via the base ring, a plurality of air outlets are formed on the wall of the air supply outer tube, and the plurality of air control fins are movably plugged into the plurality of air outlets in a one-to-one correspondence;

[0013] The inner heating tube can be telescopically sleeved inside the outer air supply tube along the axis. A graphite carbon rod core is provided in the inner heating tube. Ventilation holes are opened on the wall of the inner heating tube. One end of the inner heating tube extends outside the outer air supply tube to form an air inlet.

[0014] The wind control fin comprises a main body, a sealing portion, a pushing portion, and a pulling portion; the wall of the heating inner tube comprises a pushing cone ring and a pulling cone ring respectively cooperating with the pushing portion and the pulling portion;

[0015] The pushing vertebral ring pushes the air control fins through the pushing part so that the sealing part blocks the air outlet, and the pulling vertebral ring pulls the air control fins through the pulling part so that the sealing part opens to the air outlet, forming an air outlet gap between the main body and the air outlet.

[0016] In one embodiment,

[0017] The plurality of air outlets are evenly distributed along the circumference of the air supply outer tube, and each of the air outlets extends linearly along the axial direction of the air supply outer tube;

[0018] The wall of the inner heating tube is provided with a plurality of ventilation holes, and the plurality of ventilation holes are evenly distributed on the wall of the inner heating tube.

[0019] In one embodiment, the graphite carbon rod core is electrically connected to an external electrical device through an electric wire; and one end of the heating inner tube extending outside the air supply outer tube is connected to an external blowing device.

[0020] In one embodiment, the graphite carbon rod heating device further includes a plug-in end, one end of the outer air supply pipe is fixed to the plug-in end, and a accommodating groove for accommodating the plug-in end is provided on the furnace wall of the inner furnace body.

[0021] In one embodiment, the graphite carbon rod heating device is horizontally installed and placed in the potassium sulfate Mannheim furnace body.

[0022] The invention provides a potassium sulfate Mannheim furnace in which graphite carbon rods are uniformly distributed in a heating channel, replacing a traditional natural gas combustion solution, facilitating installation and maintenance of the graphite carbon rods, and effectively protecting the graphite carbon rods to increase their service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0024] Figure 1 A schematic diagram of a potassium sulfate Mannheim furnace in which graphite carbon rods are uniformly distributed in a heating channel according to an embodiment of the present invention;

[0025] Figure 2 Schematic diagram of installing the graphite carbon rod heating device on the potassium sulfate Mannheim furnace body;

[0026] Figure 3 for Figure 1 The structural diagram of the graphite carbon rod heating device shown;

[0027] Figure 4 for Figure 3 An exploded view of the graphite carbon rod heating device shown;

[0028] Figure 5 for Figure 3 A cross-sectional view of a graphite carbon rod heating device is shown;

[0029] Figure 6 for Figure 4 The structural diagram of the wind control fins shown. DETAILED DESCRIPTION

[0030] To facilitate understanding of the present invention, the present invention will be described more fully below with reference to the accompanying drawings. The accompanying drawings illustrate preferred embodiments of the present invention. However, the present invention may be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the present disclosure.

[0031] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly attached to the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of the present invention are for the purpose of describing specific embodiments only and are not intended to limit the present invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0033] like Figure 1 As shown, the present invention discloses a potassium sulfate Mannheim furnace 10 in which graphite carbon rods are uniformly distributed in a heating channel, which includes: a potassium sulfate Mannheim furnace body 20 and a plurality of graphite carbon rod heating devices 30.

[0034] like Figure 1 As shown, the potassium sulfate Mannheim furnace body 20 includes an outer furnace body 21 and an inner furnace body 22 , a heating chamber 23 (ie, a heating channel) is formed between the outer furnace body 21 and the inner furnace body 22 , and the inner furnace body 22 forms a material stirring chamber 24 .

[0035] Please also refer to Figure 1 and Figure 2 The outer furnace body 21 has a plurality of reformed windows 25 (such as Figure 2 As shown in FIG, a plurality of graphite carbon rod heating devices 30 correspond to a plurality of transformation windows 25 one by one, and each graphite carbon rod heating device 30 is detachably installed in the heating chamber 23 through the corresponding transformation window 25 .

[0036] Next, the specific structure of the graphite carbon rod heating device 30 is described:

[0037] Please also refer to Figure 3 and Figure 4 The graphite carbon rod heating device 30 includes: a window sealing ring 100 , a base ring 200 , an air supply outer tube 300 , a heating inner tube 400 , and a plurality of air control fins 500 .

[0038] like Figure 2 As shown, the window sealing ring 100 is fixed to the modified window 25, and the air supply outer tube 300 is detachably installed in the window sealing ring 100 through the base ring 200. The wall of the air supply outer tube 300 is provided with a plurality of air outlets 310, and a plurality of air control fins 500 are movably plugged into the plurality of air outlets 310 in a one-to-one correspondence (as shown in FIG. Figure 4 shown).

[0039] like Figure 5 As shown, the heating inner tube 400 can be telescopically sleeved in the air supply outer tube 300 along the axis. A graphite carbon rod core 600 is provided in the heating inner tube 400. Ventilation holes 410 (such as Figure 4 As shown), one end of the heating inner tube 400 extends outside the air supply outer tube 300 and forms an air inlet 420 (as shown Figure 5 shown).

[0040] like Figure 6 As shown, the air control fin 500 has a main body 510, a sealing portion 520, a pushing portion 530, and a pulling portion 540. The wall of the heating inner tube 400 has a pushing cone ring 430 and a pulling cone ring 440 (as shown in FIG. Figure 4 and Figure 5 shown).

[0041] like Figure 5 As shown, the vertebral ring 430 is pushed via the pushing portion 530 to push the air-controlling fins 500, causing the sealing portion 520 to block the air outlet 310. The vertebral ring 440 is pulled via the pulling portion 540 to pull the air-controlling fins 500, causing the sealing portion 520 to open to the air outlet 310, thereby forming an air outlet gap between the main body 510 and the air outlet 310. It should be noted that the main body 510 is movably inserted into the air outlet 310, forming an air outlet gap between the main body 510 and the air outlet 310, thereby preventing the main body 510 from completely blocking the air outlet 310. The hot air flow is discharged outside the air supply outer pipe 300 through the air outlet gap.

[0042] Furthermore, in the present invention, the graphite carbon rod core 600 is electrically connected to an external electrical device through an electric wire; and one end of the heating inner tube 400 extending outside the air supply outer tube 300 is connected to an external blowing device.

[0043] The working principle of the potassium sulfate Mannheim furnace of the above structure is described below (please also refer to Figure 5 ):

[0044] Before starting the equipment, a worker applies a pulling force to the heating inner tube 400 from the outside of the furnace body. The heating inner tube 400 drives the pulling cone ring 440 thereon to move outward. The pulling cone ring 440 applies force to the pulling portion 540, thereby causing the air control fins 500 to expand radially outward. As a result, the air outlet 310 is in an open state, and the sealing portion 520 no longer blocks the air outlet 310.

[0045] The external electrical device energizes the graphite carbon rod core 600, and the graphite carbon rod core 600 generates heat when energized;

[0046] At the same time, the external blasting device blows gas through the heated inner tube 400. The gas enters the heated inner tube 400 and contacts the graphite carbon rod core 600 to generate a hot air flow. The hot air flow passes through the ventilation hole 410, the air outlet gap between the main body 510 and the air outlet 310 in sequence, and is finally discharged from the air outlet 310. It should be noted that the present invention mainly relies on the heat generated by the dry burning of the graphite carbon rod core 600 to heat the furnace. The external blasting device blows a small amount of gas through the heated inner tube 400 to make the heat in the furnace more evenly distributed.

[0047] The hot air flow discharged from the air outlet 310 reaches the heating chamber 23, and the heating chamber 23 is heated and the heat energy is transferred to the material mixing chamber 24 by heat conduction.

[0048] The material mixing chamber 24 is filled with materials (such as Figure 1 As shown), in the stirring device 40 (as Figure 1 As shown in the figure, the material is evenly heated and a corresponding chemical reaction occurs; the material is put into the material stirring chamber 24 from the top of the inner furnace body 22, and the material that has undergone the chemical reaction is discharged from the bottom of the inner furnace body 22;

[0049] When the potassium sulfate Mannheim furnace is suspended, the external electrical equipment stops supplying power to the graphite carbon rod core 600, and at the same time, the external blast equipment stops supplying power to the heating inner tube 400.

[0050] The staff applies a thrust to the heating inner tube 400 from the outside of the furnace body. The heating inner tube 400 drives the pushing cone ring 430 thereon to move inward, pushing the cone ring 430 to apply force to the pushing portion 530, thereby causing the air control fins 500 to retract radially. As a result, the air outlet 310 is in a closed state, and the sealing portion 520 re-blocks the air outlet 310. In this way, the air flow channel is blocked, making it difficult for corrosive gases in the surrounding environment to enter the interior of the graphite carbon rod heating device, preventing the graphite carbon rod core 600 from being corroded by the corrosive gases, thereby extending the service life of the graphite carbon rod core 600.

[0051] When the entire graphite carbon rod heating device needs to be repaired and maintained, the locking connection between the window sealing ring 100 and the base ring 200 is released, and the graphite carbon rod heating device is pulled outward, so that the graphite carbon rod heating device can be quickly removed from the furnace body, which is very convenient. Of course, the graphite carbon rod core 600 can also be removed from the heating inner tube 400 separately without disassembling the entire graphite carbon rod heating device, and the graphite carbon rod core 600 can be replaced.

[0052] It should be noted that the present invention is a technical transformation based on the traditional potassium sulfate Mannheim furnace. It is necessary to install multiple graphite carbon rod heating devices 30 on the furnace body. In this way, the entire furnace body can be heated evenly and the power can be increased. The traditional furnace body is usually only provided with an air inlet for use with natural gas. Therefore, during the technical transformation process, the air inlet will be blocked with bricks, and a modification window 25 (such as 25) for use with the graphite carbon rod heating device will be newly carved out on the furnace wall of the outer furnace body. Figure 2 As shown in FIG. 1 , a window sealing ring 100 is fixedly installed in the modified window 25, and the connection between the window sealing ring 100 and the modified window 25 is sealed with concrete. This allows the entire graphite carbon rod heating device 30, except for the window sealing ring 100, to be removed from the furnace body, facilitating maintenance. The furnace body is typically a brick structure, while the window sealing ring 100 is made of a rigid material. The base ring 200, which mates with the window sealing ring 100, is also made of a rigid material. This allows the window sealing ring 100 and base ring 200, both made of rigid materials, to be easily installed or removed and provide a better seal.

[0053] In the present invention, the graphite carbon rod heating device 30 is horizontally installed and placed in the potassium sulfate Mannheim furnace body 20 (such as Figure 1 When maintenance is required on the graphite carbon rod heating device 30, the main components of the graphite carbon rod heating device 30 can be easily removed from the furnace body, making installation easier. This eliminates the need for personnel to drill into the furnace body to perform maintenance on the graphite carbon rod heating device 30, thus resolving the technical issue of difficult maintenance, a key consideration when upgrading a potassium sulfate Mannheim furnace.

[0054] like Figure 4 As shown, in the present invention, a plurality of air outlets 310 are evenly distributed along the circumference of the outer air supply tube 300, with each air outlet 310 extending linearly along the axial direction of the outer air supply tube 300. Furthermore, a plurality of ventilation holes 410 are formed in the wall of the inner heating tube 400, and the ventilation holes 410 are evenly distributed along the wall of the inner heating tube 400. This allows the hot air flow to be evenly discharged from all sides of the outer air supply tube 300, and the air supply range is wider, resulting in more uniform heating within the heating chamber 23.

[0055] In the present invention, the graphite carbon rod heating device 30 further includes a plug end 700 (such as Figure 4 and Figure 5 As shown in FIG. 1 , one end of the outer air supply pipe 300 is fixed to the plug end 700, and a receiving groove for accommodating the plug end 700 is provided on the furnace wall of the inner furnace body 22. The receiving groove for accommodating the plug end 700 on the furnace wall of the inner furnace body 22 provides a stable support point for the entire graphite carbon rod heating device 30, preventing the graphite carbon rod heating device 30 from tilting during prolonged use.

[0056] The above-described embodiments merely illustrate several implementations of the present invention, and while their descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the patent for this invention shall be determined by the appended claims.

Claims

1. A potassium sulfate Mannheim furnace with graphite carbon rods uniformly distributed in the heating channel, characterized in that: include: Potassium sulfate Mannheim furnace body, several graphite carbon rod heating devices; The potassium sulfate Mannheim furnace body includes an outer furnace body and an inner furnace body, a heating chamber is formed between the outer furnace body and the inner furnace body, and the inner furnace body forms a material stirring chamber; The outer furnace body has a plurality of transformation windows on its wall, and the plurality of graphite carbon rod heating devices correspond to the plurality of transformation windows one by one. Each graphite carbon rod heating device can be detachably installed in the heating chamber through the corresponding transformation window.

2. The potassium sulfate Mannheim furnace with graphite carbon rods uniformly distributed in the heating channel according to claim 1, characterized in that The graphite carbon rod heating device includes: a window sealing ring, a base ring, an air supply outer tube, a heating inner tube, and a plurality of air control fins; The window sealing ring is fixed to the modified window, the air supply outer tube is detachably mounted in the window sealing ring via the base ring, a plurality of air outlets are formed on the wall of the air supply outer tube, and the plurality of air control fins are movably plugged into the plurality of air outlets in a one-to-one correspondence; The inner heating tube can be telescopically sleeved inside the outer air supply tube along the axis. A graphite carbon rod core is provided in the inner heating tube. Ventilation holes are opened on the wall of the inner heating tube. One end of the inner heating tube extends outside the outer air supply tube to form an air inlet. The wind control fin comprises a main body, a sealing portion, a pushing portion, and a pulling portion; the wall of the heating inner tube comprises a pushing cone ring and a pulling cone ring respectively cooperating with the pushing portion and the pulling portion; The pushing vertebral ring pushes the air control fins through the pushing part so that the sealing part blocks the air outlet, and the pulling vertebral ring pulls the air control fins through the pulling part so that the sealing part opens to the air outlet, forming an air outlet gap between the main body and the air outlet.

3. The potassium sulfate Mannheim furnace with graphite carbon rods uniformly distributed in the heating channel according to claim 2, characterized in that: The plurality of air outlets are evenly distributed along the circumference of the air supply outer tube, and each of the air outlets extends linearly along the axial direction of the air supply outer tube; The wall of the inner heating tube is provided with a plurality of ventilation holes, and the plurality of ventilation holes are evenly distributed on the wall of the inner heating tube.

4. The potassium sulfate Mannheim furnace with graphite carbon rods uniformly distributed in the heating channel according to claim 2, characterized in that: The graphite carbon rod core is electrically connected to external electrical equipment through an electric wire; and one end of the heating inner tube extending outside the air supply outer tube is connected to external air blowing equipment.

5. The potassium sulfate Mannheim furnace with graphite carbon rods uniformly distributed in the heating channel according to claim 2, characterized in that: The graphite carbon rod heating device also includes a plug-in end, one end of the air supply outer pipe is fixed on the plug-in end, and a accommodating groove for accommodating the plug-in end is opened on the furnace wall of the inner furnace body.

6. The potassium sulfate Mannheim furnace with graphite carbon rods uniformly distributed in the heating channel according to claim 1, characterized in that: The graphite carbon rod heating device is horizontally installed and placed in the potassium sulfate Mannheim furnace body.

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