Special ash removal device for calcium carbide furnace
The ash removal technology, which combines air shock wave and sonic ash removal devices, solves the problems of reduced heat transfer efficiency and equipment failure caused by ash accumulation in calcium carbide furnaces, and achieves efficient ash removal effect without production shutdown through online cleaning.
Patent Information
- Application Number
- CN202423079223.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-13
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-12-13
AI Technical Summary
Ash buildup inside the calcium carbide furnace reduces heat transfer and thermal efficiency, increases energy consumption, and may cause equipment failure. Existing cleaning methods require shutdown and cooling, which affects the normal operation of the system.
The dust removal device combines an air shock wave cleaning mechanism and an acoustic cleaning mechanism. It uses air shock waves to generate supersonic fluid shock wave impact and acoustic oscillation to loosen and peel off the accumulated ash, which is then discharged by gravity or flue gas.
It effectively removes accumulated ash, improves heat transfer efficiency, reduces energy consumption, avoids equipment failure, enables online cleaning without production stoppage, and ensures stable system operation.
Smart Images
Figure CN223500172U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of calcium carbide furnace purification technology, specifically to a special ash removal device for calcium carbide furnaces. Background Technology
[0002] The calcium carbide furnace is the main equipment for producing calcium carbide. Inside the furnace, the high temperature generated by the electric arc melts the furnace charge, causing a reaction that produces calcium carbide. The furnace body comes in many shapes, including round, elliptical, square, and rectangular. From a thermodynamic point of view, a round furnace is more advantageous. In reality, the choice of furnace body shape is mainly determined by the arrangement of the electrodes and the installation location of the carbon monoxide extraction equipment. Nowadays, most calcium carbide furnaces are round.
[0003] In actual production, the unique structure of the calcium carbide furnace causes ash in the fuel to condense on the heating surface. Fuel segregation leads to incomplete combustion of some fuel, which remains on the heating surface. Thermal deviation causes localized excessively high flame temperatures. Improper operation includes issues such as unreasonable air distribution and loss of control over coal feeding. Ash and coking accumulation in the heat exchange tube bundles inside the waste heat boiler narrows the flue gas passage, causing a large amount of flue gas to overflow, affecting the normal operation of the system. In addition, ash accumulation can reduce heat transfer efficiency and thermal efficiency, increase energy consumption, and may even cause equipment failure. This results in frequent and substantial investment of manpower and resources on-site to regularly inspect the heating surface and clean areas with severe ash and slag accumulation. Cleaning also requires production to be stopped while waiting for the boiler to cool down, causing losses. Utility Model Content
[0004] The purpose of this utility model is to provide a special ash removal device for calcium carbide furnaces to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a special ash removal device for calcium carbide furnaces, including a first calcium carbide furnace body, a second calcium carbide furnace body located at the right end of the first calcium carbide furnace body, an air shock wave ash removal mechanism located at the outer ends of the first and second calcium carbide furnace bodies, and an acoustic ash removal mechanism located at the top of the first and second calcium carbide furnace bodies.
[0006] The air shock wave cleaning mechanism includes an air shock wave cleaner, which is installed at the outer end of the first and second calcium carbide furnace bodies. An air pipe is fixedly connected to the outer end of the air shock wave cleaner, and a filter regulating valve is installed on the surface of the air pipe. An air inlet is fixedly connected to the right end of the air pipe. A pulse transmitter is installed on the top of the air shock wave cleaner, and a connector is installed at the inner end of the air shock wave cleaner. An air shock wave cleaning pipe is fixedly connected to the inner end of the connector. The air shock wave cleaning mechanism is installed on the side of the first and second calcium carbide furnace bodies. Through the pressure relief and burst release technology, the air shock wave cleaner utilizes the energy of an instantaneously generated supersonic fluid shock wave (shock wave) to remove the ash adhering to the heat exchange tube bundle. The air shock wave cleaning mechanism instantaneously delivers compressed air into the interior of the first and second calcium carbide furnace bodies, generating vibration and impact within the equipment. This vibration and impact removes dust and carbon deposits from the equipment surface, effectively loosening and peeling off the ash, thus achieving the cleaning effect.
[0007] Preferably, the air shock wave cleaning mechanism is provided in three sets: one set of air shock wave cleaning mechanism is provided at the top left end of the first calcium carbide furnace body, and two sets of air shock wave cleaning mechanism are provided at the right end of the second calcium carbide furnace body.
[0008] Preferably, the air shock wave cleaning pipe penetrates the surface of the first and second calcium carbide furnace bodies, and the air shock wave cleaning pipe is disposed inside the first and second calcium carbide furnace bodies.
[0009] Preferably, the acoustic cleaning mechanism includes an installation channel located at the top center of the first and second calcium carbide furnace bodies. An installation sleeve is installed at the top of the installation channel. A section of a sound amplification tube is fixedly connected to the bottom of the installation sleeve. Two sections of a sound amplification tube are fixedly connected to the top of the installation sleeve. A third section of a sound amplification tube is fixedly connected to the top of the two sections of the sound amplification tube. A sound energy unit is installed at the top of the third section of the sound amplification tube. After the air shock wave cleaning mechanism removes the dust inside the second calcium carbide furnace body, the acoustic cleaning mechanism is activated to treat the dust, loosening the tightly packed ash adhering to the internal tube bundles. This works in conjunction with the air shock wave cleaning mechanism to remove the accumulated ash. The acoustic cleaning mechanism propels air into the interior of the first and second calcium carbide furnace bodies, transmitting it to the ash accumulation points through the air medium. The repeated oscillation of the sound waves causes fatigue damage to the ash structure, ultimately resulting in ash discharge through gravity or flue gas falling into ash discharge ports one and two.
[0010] Preferably, the acoustic cleaning mechanism is provided in two sets, and the section of the sound amplification tube is installed inside the installation channel.
[0011] Preferably, a connecting body is fixedly connected at the top between the first calcium carbide furnace body and the second calcium carbide furnace body, and an ash collection port is opened at the bottom of the connecting body. A flue gas inlet is fixedly connected to the bottom of the left end of the first calcium carbide furnace body, and a flue gas outlet is fixedly connected to the bottom of the right end of the second calcium carbide furnace body. A base is fixedly connected to the bottom of the first calcium carbide furnace body and the second calcium carbide furnace body, and an ash collection port is opened at the bottom of the first calcium carbide furnace body and the second calcium carbide furnace body.
[0012] Compared with the prior art, this utility model provides a special ash removal device for calcium carbide furnaces, which has the following beneficial effects:
[0013] This dedicated ash removal device for calcium carbide furnaces is equipped with an air shock wave ash removal mechanism. The air shock wave ash removal mechanism is installed on the sides of the first and second calcium carbide furnace bodies. Through the pressure relief and burst release technology, the air shock wave ash remover uses the energy of the instantaneously generated supersonic fluid shock wave (shock wave) to remove the ash adhering to the heat exchange tube bundle. The air shock wave ash removal mechanism instantaneously sends compressed air into the interior of the first and second calcium carbide furnace bodies, generating vibration and impact inside the equipment. Through this vibration and impact, dust and carbon deposits are removed from the surface of the equipment, effectively loosening and peeling off the ash, thereby achieving the ash removal effect.
[0014] The special ash removal device for calcium carbide furnaces is equipped with an acoustic ash removal mechanism. After the air shock wave ash removal mechanism removes the dust inside the Qianhe second calcium carbide furnace body, the acoustic ash removal mechanism is activated to treat the dust, making the ash attached to the internal tube bundles loose. This works in conjunction with the air shock wave ash removal mechanism to remove the ash. The acoustic ash removal mechanism pushes air into the interior of the first and second calcium carbide furnace bodies, transmitting it to the ash accumulation points through the air medium. The repeated vibration of the sound waves causes the ash structure to be damaged due to fatigue, and finally the ash is discharged through gravity or flue gas into the ash discharge port 1 and ash discharge port 2. Attached Figure Description
[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0017] Figure 2 This is a schematic diagram of the bottom of the structure of this utility model;
[0018] Figure 3 This is a schematic diagram of the air shock wave cleaning mechanism of this utility model;
[0019] Figure 4 This is a schematic diagram of the acoustic cleaning mechanism of this utility model.
[0020] In the diagram: 1. First calcium carbide furnace body; 2. Connector; 21. Ash discharge port one; 3. Second calcium carbide furnace body; 4. Base; 5. Flue gas inlet; 6. Flue gas outlet; 7. Ash discharge port two; 8. Air shock wave cleaning mechanism; 81. Air shock wave cleaner; 82. Air pipe; 83. Filter regulating valve; 84. Air inlet; 85. Pulse transmitter; 86. Connector; 87. Air shock wave cleaning pipe; 9. Acoustic cleaning mechanism; 91. Installation channel; 92. Installation sleeve; 93. First stage amplifier tube; 94. Second stage amplifier tube; 95. Third stage amplifier tube; 96. Sound energy unit assembly. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0022] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0023] This utility model provides the following technical solution:
[0024] Example 1, please refer to Figure 1-4 The special ash removal device for calcium carbide furnace includes a first calcium carbide furnace body 1, a second calcium carbide furnace body 3 is provided at the right end of the first calcium carbide furnace body 1, an air shock wave ash removal mechanism 8 is provided at the outer end of the first calcium carbide furnace body 1 and the second calcium carbide furnace body 3, and an acoustic ash removal mechanism 9 is provided at the top of the first calcium carbide furnace body 1 and the second calcium carbide furnace body 3.
[0025] The air shock wave cleaning mechanism 8 includes an air shock wave cleaner 81, which is installed at the outer end of the first calcium carbide furnace body 1 and the second calcium carbide furnace body 3. An air pipe 82 is fixedly connected to the outer end of the air shock wave cleaner 81. A filter regulating valve 83 is provided on the surface of the air pipe 82. An air inlet 84 is fixedly connected to the right end of the air pipe 82. A pulse transmitter 85 is installed on the top of the air shock wave cleaner 81. A connector 86 is installed at the inner end of the air shock wave cleaner 81, and an air shock wave cleaning pipe 87 is fixedly connected to the inner end of the connector 86. The air shock wave cleaning mechanism 8 is installed... Installed on the sides of the first calcium carbide furnace body 1 and the second calcium carbide furnace body 3, the air shock wave cleaner 81 uses pressure relief and burst release technology to generate supersonic fluid shock waves (shock waves) instantly, which can remove the ash adhering to the heat exchange tube bundle. The air shock wave cleaner 81 instantly sends compressed air into the first calcium carbide furnace body 1 and the second calcium carbide furnace body 3, generating vibration and impact inside the equipment. Through this vibration and impact, dust and carbon deposits are removed from the surface of the equipment, which can effectively loosen and peel off the ash, thereby achieving the effect of ash removal.
[0026] The air shock wave cleaning mechanism 8 is provided in three sets. One set of air shock wave cleaning mechanism 8 is provided at the top left end of the first calcium carbide furnace body 1, and two sets of air shock wave cleaning mechanism 8 are provided at the right end of the second calcium carbide furnace body 3.
[0027] The air shock wave cleaning pipe 87 penetrates the surface of the first calcium carbide furnace body 1 and the second calcium carbide furnace body 3, and the air shock wave cleaning pipe 87 is disposed inside the first calcium carbide furnace body 1 and the second calcium carbide furnace body 3.
[0028] Example 2, please refer to Figure 1-4 Furthermore, based on Embodiment 1, the acoustic wave cleaning mechanism 9 further includes an installation channel 91. The installation channel 91 is located at the top center of the first calcium carbide furnace body 1 and the second calcium carbide furnace body 3. An installation sleeve 92 is provided at the top of the installation channel 91. A section of the sound amplification tube 93 is fixedly connected to the bottom of the installation sleeve 92. A second section of the sound amplification tube 94 is fixedly connected to the top of the installation sleeve 92. A third section of the sound amplification tube 95 is fixedly connected to the top of the second section of the sound amplification tube 94. A sound energy unit assembly 96 is installed on the top of the third section of the sound amplification tube 95. The acoustic wave cleaning mechanism 8 is used to clean the chirps. After the dust inside the second calcium carbide furnace body 3 is removed, the sonic cleaning mechanism 9 is activated to treat the dust, making the tightly packed dust attached to the internal tube bundles loose. In conjunction with the air shock wave cleaning mechanism 8, the dust is removed. The sonic cleaning mechanism 9 blows air into the first calcium carbide furnace body 1 and the second calcium carbide furnace body 3. The air is transmitted to the dust accumulation point through the air medium. The repeated vibration of the sonic waves causes the ash structure to be damaged due to fatigue. Finally, the ash is discharged through gravity or flue gas into the ash discharge port 21 and the ash discharge port 7.
[0029] The acoustic cleaning mechanism 9 is provided in two sets, with a section of the sound amplification tube 93 installed inside the installation channel 91;
[0030] A connecting body 2 is fixedly connected at the top between the first calcium carbide furnace body 1 and the second calcium carbide furnace body 3. An ash collection port 21 is opened at the bottom of the connecting body 2. A flue gas inlet 5 is fixedly connected at the bottom left end of the first calcium carbide furnace body 1. A flue gas outlet 6 is fixedly connected at the bottom right end of the second calcium carbide furnace body 3. A base 4 is fixedly connected at the bottom of the first calcium carbide furnace body 1 and the second calcium carbide furnace body 3. An ash collection port 7 is opened at the bottom of the first calcium carbide furnace body 1 and the second calcium carbide furnace body 3.
[0031] In actual operation, when this device is in use, flue gas enters through the flue gas inlet 5 and exits through the flue gas outlet 6. The air shock wave cleaning mechanism 8 is installed on the side of the first calcium carbide furnace body 1 and the second calcium carbide furnace body 3. Through the air shock wave cleaner 81, the energy of the instantaneously generated supersonic fluid shock wave (shock wave) is used to remove the ash adhering to the heat exchange tube bundle by using the pressure relief burst release technology. The air shock wave cleaning mechanism 8 instantaneously sends compressed air into the first calcium carbide furnace body 1 and the second calcium carbide furnace body 3, generating vibration and impact inside the equipment. Through this vibration and impact, dust and carbon deposits are removed from the surface of the equipment. In addition, it can effectively loosen and peel off the accumulated ash, thereby achieving the effect of ash removal. After the air shock wave ash removal mechanism 8 peels off the dust inside the second calcium carbide furnace body 3, the sonic ash removal mechanism 9 is activated to treat the dust, turning the tightly packed ash attached to the internal tube bundle into loose ash. It works in conjunction with the air shock wave ash removal mechanism 8 to remove the accumulated ash. The sonic ash removal mechanism 9 blows air into the first calcium carbide furnace body 1 and the second calcium carbide furnace body 3, and transmits it to the ash accumulation point through the air medium. The repeated oscillation of the sonic waves causes the ash structure to be damaged due to fatigue. Finally, the ash is discharged through gravity or flue gas falling into the ash discharge port 1 21 and ash discharge port 2 7.
[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
Claims
1. A special ash removal device for calcium carbide furnaces, comprising a first calcium carbide furnace body (1), characterized in that: The first calcium carbide furnace body (1) is provided with a second calcium carbide furnace body (3) at the right end. The first calcium carbide furnace body (1) and the second calcium carbide furnace body (3) are provided with an air shock wave cleaning mechanism (8) at their outer ends. The first calcium carbide furnace body (1) and the second calcium carbide furnace body (3) are provided with an acoustic cleaning mechanism (9) at their top. The air shock wave cleaning mechanism (8) includes an air shock wave cleaner (81), which is installed at the outer end of the first calcium carbide furnace body (1) and the second calcium carbide furnace body (3). An air pipe (82) is fixedly connected to the outer end of the air shock wave cleaner (81). A filter regulating valve (83) is provided on the surface of the air pipe (82). An air inlet (84) is fixedly connected to the right end of the air pipe (82). A pulse transmitter (85) is installed on the top of the air shock wave cleaner (81). A connector (86) is installed at the inner end of the air shock wave cleaner (81). An air shock wave cleaning pipe (87) is fixedly connected to the inner end of the connector (86).
2. The ash removal device for calcium carbide furnaces according to claim 1, characterized in that: The air shock wave cleaning mechanism (8) is provided in three sets. One set of air shock wave cleaning mechanism (8) is provided on the top left end of the first calcium carbide furnace body (1), and two sets of air shock wave cleaning mechanism (8) are provided on the right end of the second calcium carbide furnace body (3).
3. The ash removal device for calcium carbide furnaces according to claim 1, characterized in that: The air shock wave cleaning pipe (87) penetrates the surface of the first calcium carbide furnace body (1) and the second calcium carbide furnace body (3), and the air shock wave cleaning pipe (87) is disposed inside the first calcium carbide furnace body (1) and the second calcium carbide furnace body (3).
4. The ash removal device for calcium carbide furnaces according to claim 1, characterized in that: The acoustic cleaning mechanism (9) includes an installation channel (91), which is located at the top center of the first calcium carbide furnace body (1) and the second calcium carbide furnace body (3). An installation sleeve (92) is provided at the top of the installation channel (91). A section of a sound amplification tube (93) is fixedly connected to the bottom of the installation sleeve (92). A second section of a sound amplification tube (94) is fixedly connected to the top of the installation sleeve (92). A third section of a sound amplification tube (95) is fixedly connected to the top of the second section of the sound amplification tube (94). A sound energy unit (96) is installed on the top of the third section of the sound amplification tube (95).
5. The ash removal device for calcium carbide furnaces according to claim 4, characterized in that: The acoustic cleaning mechanism (9) is provided in two sets, and the section of the sound amplification tube (93) is installed inside the installation channel (91).
6. The ash removal device for calcium carbide furnaces according to claim 1, characterized in that: A connecting body (2) is fixedly connected at the top between the first calcium carbide furnace body (1) and the second calcium carbide furnace body (3). The bottom of the connecting body (2) is provided with an ash discharge port (21). A flue gas inlet (5) is fixedly connected at the bottom left end of the first calcium carbide furnace body (1). A flue gas outlet (6) is fixedly connected at the bottom right end of the second calcium carbide furnace body (3). A base (4) is fixedly connected at the bottom of the first calcium carbide furnace body (1) and the second calcium carbide furnace body (3). An ash discharge port (7) is provided at the bottom of the first calcium carbide furnace body (1) and the second calcium carbide furnace body (3).