CN210718620U - Atmosphere protection roller kiln - Google Patents
Atmosphere protection roller kiln Download PDFInfo
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- CN210718620U CN210718620U CN201921187034.0U CN201921187034U CN210718620U CN 210718620 U CN210718620 U CN 210718620U CN 201921187034 U CN201921187034 U CN 201921187034U CN 210718620 U CN210718620 U CN 210718620U
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Abstract
The utility model provides an atmosphere protection roller kilns, including the furnace body that has furnace, locate material conveyor in the furnace, locate the pipe of discharging fume at furnace top, and be located furnace and the heating device of upper and lower side at material conveyor, be divided into temperature rise section, constant temperature section and cooling section, its characterized in that in the furnace: lie in the section that heats the furnace body side inserts air pipeline, and this air pipeline inserts to material conveyor's top, the utility model discloses at the section that heats up, kiln district in the interval that the temperature is 400 + 700 ℃ promptly lets in the air, further burns volatile matter, and the flue gas after the burning is discharged from the pipe of discharging fume to avoid the production of condensate, avoid the damage to electrical components and parts, can prolong equipment life and improve equipment's stability, and reduce the influence of volatile matter to the material, improve the product quality, continue the feeding during the volatile matter of burning, ensured the efficiency of work, practiced thrift protective gas.
Description
Technical Field
The utility model relates to a thermal treatment equipment technical field, concretely relates to atmosphere protection roller kilns.
Background
The atmosphere roller kiln is a common device for material heat treatment. The silicon-carbon negative electrode material atmosphere protection roller kiln used for preparing the silicon-carbon negative electrode material by the high-temperature pyrolysis method is divided into a temperature rising section, a constant temperature section and a temperature reduction section, and due to the particularity required by the production process of the silicon-carbon negative electrode material, higher requirements are provided for the atmosphere protection roller kiln, and the specific expression is as follows: the material contains a large amount of volatile matters, the volatile matters are generated in a large amount in the temperature rise section of 400-700 ℃, and if the volatile matters cannot be discharged in time, the working environment of equipment is influenced, so that the sensor fails; volatile matters are continuously accumulated, grow downwards along the side wall of the hearth under the influence of gravity and are continuously adsorbed on the silicon-carbon rods, the roller rods and the refractory materials on the side wall, and once the volatile matters are adsorbed on the upper silicon-carbon rod and the lower silicon-carbon rod to form short circuits, electric shock is generated on the roller rods and the refractory materials, the service lives of the parts are greatly shortened under the action of strong current, and therefore the service life of the whole kiln and the stability of equipment are reduced.
At present, the industry generally adopts a carbon burning mode to solve the problems, namely, the feeding is stopped after the kiln runs for a period of time, after the materials are completely discharged out of a hearth, air and oxygen are introduced into the hearth, so that volatile coagulates (carbon radicals) are quickly oxidized in a high-temperature environment and are discharged out of the hearth in a carbon dioxide form, and then the atmosphere in the kiln (protective atmosphere such as nitrogen, argon and the like) is readjusted until the atmosphere reaches the standard, and then the materials are fed again. The treatment mode can only avoid the damage of the condensate to the equipment, cannot fundamentally solve the generation of the condensate, not only affects the productivity (once per month), but also consumes a large amount of protective gas, and has high cost and low efficiency.
SUMMERY OF THE UTILITY MODEL
To above problem, the utility model provides an atmosphere protection roller kilns, in the section of rising the temperature, the kiln district in the interval that the temperature is 400 + 700 ℃ lets in the air promptly, further burns volatile substance, the flue gas after the burning is discharged from the pipe of discharging fume, thereby avoid the production of condensation, avoid the damage to electrical components, can prolong equipment life and improve equipment's stability, and reduce the influence of volatile substance to the material, improve the product quality, continue the feeding during the burning volatile substance, the efficiency of work has been ensured, protective gas has been practiced thrift.
In order to realize the purpose, the utility model discloses a technical scheme as follows:
the utility model provides an atmosphere protection roller kilns, including the furnace body that has furnace, locate the material conveyor in the furnace, locate the pipe of discharging fume at furnace top, and be located furnace and at the heating device of material conveyor upper and lower below, be divided into temperature rising section, constant temperature section and cooling section in the furnace, its characterized in that: and an air pipeline is connected to the side surface of the furnace body of the temperature raising section and is connected to the upper part of the material conveying device.
Preferably, the heating device located above is arranged in a heating box, into which the air line opens.
Preferably, the air pipeline is also connected with a flow meter which controls the flow of air to ensure that the oxygen content in the nitrogen in the hearth is lower than 50ppm, and the oxygen content is higher than the oxygen content to easily oxidize materials.
Preferably, the temperature rise section comprises a plurality of kiln regions, and each kiln region is connected with the air pipeline.
Preferably, the air pipeline is further connected with a flowmeter and is connected to the three kiln regions through a four-way branch.
Preferably, the air pipeline adopts a PU pipe.
Preferably, the air inlet direction of the air pipeline is horizontal or upward, so that the air is prevented from contacting with materials to cause oxidation.
The utility model discloses beneficial effect:
the utility model discloses at the intensification section, the kiln district in the interval that the temperature is 400-charge 700 ℃ lets in the air promptly, further burns volatile substance, and the flue gas after the burning is discharged from the pipe of discharging fume to avoid the production of coagulum, avoid the damage to electrical components, can prolong equipment life and improve equipment's stability, and reduce the influence of volatile substance to the material, improve the product quality, continue the feeding during the volatile substance of burning, ensured the efficiency of work, practiced thrift protective gas.
Drawings
Fig. 1 is a front view of the present invention;
fig. 2 is a left side view of the present invention.
Detailed Description
The technical solution of the present invention will be described below with reference to the accompanying drawings and examples.
As shown in figures 1 to 2, the atmosphere protection roller kiln of the present invention comprises a furnace body 1 having a furnace chamber 2, a material conveying device 3 disposed in the furnace chamber 2, a smoke exhaust pipe 4 disposed at the top of the furnace chamber 2, and a heating device 5 disposed in the furnace chamber 2 and above and below the material conveying device 3, wherein the atmosphere protection roller kiln is used for calcining and preparing a silicon-carbon cathode material or a carbon coating material, during the calcining process, incompletely combusted volatile gas is generated, the furnace chamber 2 is divided into a temperature raising section, a constant temperature section and a temperature lowering section, an air pipeline 6 is connected to the side surface of the furnace body 1 located at the temperature raising section, the air pipeline 6 is connected to the top of the material conveying device 3, the furnace body 1 is longer at the temperature raising section of 400 ℃ and 700 ℃, in this section, the insufficiently combusted volatile gas is generated, after air is introduced from the air pipeline 6, the volatile gas can be helped to combust, after the volatile gas is burnt into smoke, the smoke is discharged from the smoke discharge pipe 4, so that the condensation of the volatile gas can be avoided.
In this embodiment, the heating device 5 located above is disposed in a heating box 7, which is favorable for air tightness, and the heat of the heating device 5 can be more concentrated, and the air pipeline 6 is introduced into the heating box 7 to introduce air into the heating box 7, so as to help the combustion of the volatile gas, and ensure that the air is located above the material conveying device 3, thereby avoiding the oxidation of the material.
In this embodiment, the temperature raising section includes a plurality of kiln regions, each of the kiln regions is connected with the air pipe 6, the air pipe 6 is further connected with a flow meter 8, the flow meter 8 controls the flow of air to ensure that the oxygen content in the nitrogen in the furnace 2 is less than 50ppm, or the air pipe 6 is connected with one flow meter 8 first, and is connected to three kiln regions through a four-way branch after the flow meter 8, and the air amount of the three kiln regions is controlled by one flow meter 8.
In this embodiment, the air pipeline 6 is a PU pipe, and the air pipeline 6 is connected with the furnace body 1 through a ball valve 9, so that the air pipeline 6 can be switched on and off at any time.
In this embodiment, the air inlet direction of the air pipeline 6 is horizontal or upward to avoid the air from contacting the material to cause oxidation.
The utility model discloses at the intensification section, be 400 + and let in the air in the kiln district of 700 ℃ interval at the temperature promptly, further burn volatile substance, the flue gas after the burning is discharged from discharging fume pipe 4 to avoid the production of coagulum, avoid the damage to electrical components, can prolong equipment life and improve equipment's stability, and reduce the influence of volatile substance to the material, improve the product quality, continue the feeding during the volatile substance of burning, ensured the efficiency of work, practiced thrift protective gas.
In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, only for convenience of description and simplification of description, but not for indicating or implying that the referred device or element must have a specific orientation and a specific orientation configuration and operation, and thus, should not be construed as limiting the present invention. Furthermore, "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate member, or they may be connected through two or more elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention, and should not be considered as limiting the scope of the present invention. All the equivalent changes and improvements made according to the application scope of the present invention should still fall within the patent coverage of the present invention.
Claims (7)
1. The utility model provides an atmosphere protection roller kilns, including the furnace body that has furnace, locate the material conveyor in the furnace, locate the pipe of discharging fume at furnace top, and be located furnace and at the heating device of material conveyor upper and lower below, be divided into temperature rising section, constant temperature section and cooling section in the furnace, its characterized in that: and an air pipeline is connected to the side surface of the furnace body of the temperature raising section and is connected to the upper part of the material conveying device.
2. An atmosphere protection roller kiln according to claim 1, characterized in that: the heating device located above is arranged in a heating box, and the air pipeline is communicated into the heating box.
3. An atmosphere protection roller kiln according to claim 1, characterized in that: the air pipeline is also connected with a flow meter which controls the flow of the air to ensure that the oxygen content in the nitrogen in the hearth is lower than 50 ppm.
4. An atmosphere protection roller kiln according to claim 1, characterized in that: the temperature rise section comprises a plurality of kiln areas, and each kiln area is connected with the air pipeline.
5. An atmosphere protection roller kiln according to claim 4, characterized in that: the air pipeline is also connected with a flowmeter and is connected to the three kiln areas through a four-way branch.
6. An atmosphere protection roller kiln according to claim 1, characterized in that: the air pipeline adopts a PU pipe.
7. An atmosphere protection roller kiln according to claim 1, characterized in that: the air inlet direction of the air pipeline is horizontal or upward, so that the air is prevented from contacting with materials to cause oxidation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921187034.0U CN210718620U (en) | 2019-07-26 | 2019-07-26 | Atmosphere protection roller kiln |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921187034.0U CN210718620U (en) | 2019-07-26 | 2019-07-26 | Atmosphere protection roller kiln |
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| Publication Number | Publication Date |
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| CN210718620U true CN210718620U (en) | 2020-06-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921187034.0U Active CN210718620U (en) | 2019-07-26 | 2019-07-26 | Atmosphere protection roller kiln |
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| CN (1) | CN210718620U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112553593A (en) * | 2020-10-29 | 2021-03-26 | 佛山高砂工业窑炉有限公司 | Processing equipment for lithium iron phosphate based on CVD (chemical vapor deposition) process and processing process based on equipment |
| CN115790144A (en) * | 2023-02-07 | 2023-03-14 | 苏州田边热能科技有限公司 | Device system and method for recycling nitrogen of roller kiln |
-
2019
- 2019-07-26 CN CN201921187034.0U patent/CN210718620U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112553593A (en) * | 2020-10-29 | 2021-03-26 | 佛山高砂工业窑炉有限公司 | Processing equipment for lithium iron phosphate based on CVD (chemical vapor deposition) process and processing process based on equipment |
| CN115790144A (en) * | 2023-02-07 | 2023-03-14 | 苏州田边热能科技有限公司 | Device system and method for recycling nitrogen of roller kiln |
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