CN111089475A - Roller kiln - Google Patents
Roller kiln Download PDFInfo
- Publication number
- CN111089475A CN111089475A CN201911395987.0A CN201911395987A CN111089475A CN 111089475 A CN111089475 A CN 111089475A CN 201911395987 A CN201911395987 A CN 201911395987A CN 111089475 A CN111089475 A CN 111089475A
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- China
- Prior art keywords
- temperature
- heating
- hearth
- kiln
- adjusting
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
- F27B9/14—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment
- F27B9/20—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace
- F27B9/24—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace being carried by a conveyor
- F27B9/2407—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace being carried by a conveyor the conveyor being constituted by rollers (roller hearth furnace)
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
- F27B9/30—Details, accessories, or equipment peculiar to furnaces of these types
- F27B9/36—Arrangements of heating devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
- F27B9/30—Details, accessories, or equipment peculiar to furnaces of these types
- F27B9/40—Arrangements of controlling or monitoring devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
- F27B9/30—Details, accessories, or equipment peculiar to furnaces of these types
- F27B9/36—Arrangements of heating devices
- F27B2009/3638—Heaters located above and under the track
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat Treatments In General, Especially Conveying And Cooling (AREA)
- Tunnel Furnaces (AREA)
Abstract
The invention discloses a roller kiln, which comprises a kiln body with a hearth, wherein a conveying device and a heating device are installed in the hearth, the roller kiln is provided with more than one temperature-adjusting heating element which penetrates through the hearth along the width direction of the hearth, and the temperature-adjusting heating element is provided with a middle non-heating section which is positioned at the middle position of the hearth and two side heating sections which are respectively and correspondingly positioned at the two side positions of the hearth. The roller kiln has the advantages of simple and convenient regulation and control, good regulation and control effect, simple structure, low cost, easy implementation, easy modification of the existing equipment and the like.
Description
Technical Field
The invention relates to the technical field of heat treatment kiln equipment, in particular to a roller kiln.
Background
For the electric heating type roller kiln, heating elements horizontally penetrate through a hearth from top to bottom respectively, materials and roller rods for placing the materials are arranged between the upper heating element and the lower heating element, the temperature difference of the upper heating element and the lower heating element can be adjusted by adjusting the power of the upper heating element and the lower heating element from the temperature difference of the cross section of the hearth, but the temperature difference in the width direction does not have an effective adjusting and controlling means because the heating elements horizontally penetrate through the hearth, so that the temperature uniformity in the width direction is difficult to effectively adjust, and the defect of temperature field control of the existing roller kiln exists.
Because the heat of furnace both sides can outwards diffuse, consequently the temperature distribution of furnace cross-section can demonstrate the characteristics that middle height, both sides are low in the furnace width direction, leads to the ascending difference in temperature of furnace width direction. When the size of the roller kiln hearth is small, the temperature difference in the width direction of the hearth is not obvious, but the temperature difference in the width direction of the hearth is increased along with the increase of the width of the kiln, so that the quality of heat treatment products is seriously influenced. In order to reduce the temperature difference in the width direction of the hearth, the conventional method is to add lateral heat insulation structures on two sides of a roller kiln to reduce radiation heat dissipation on two sides and further alleviate the temperature difference in the width direction of the hearth, but the method has very small effect, is difficult to meet the heat treatment requirements of materials with higher temperature sensitivity, such as battery materials, and the like, and causes poor consistency of product sintering and low yield.
Disclosure of Invention
The invention aims to solve the technical problem of overcoming the defects in the prior art and provide the roller kiln which is simple and convenient to regulate, good in regulating effect, simple in structure, low in cost, easy to implement and easy to modify the existing equipment.
In order to solve the technical problems, the invention adopts the following technical scheme:
the utility model provides a roller way kiln, is including the furnace body that has furnace, install conveyor and heating device in the furnace, roller way kiln is equipped with more than one and runs through along furnace width direction the heating element that adjusts the temperature that furnace set up, the heating element that adjusts the temperature has one section middle non-heating section that is located furnace middle part position department and corresponds two sections side heating sections that are located two lateral part positions of furnace department respectively.
As a further improvement of the above technical solution:
the roller kiln is provided with a plurality of temperature adjusting heating elements, the temperature adjusting heating elements are divided into two groups of elements, the two groups of elements are respectively arranged above and below the conveying device, and each group of elements comprises more than two temperature adjusting heating elements which are sequentially arranged at intervals along the conveying direction of the conveying device.
Heating device locates two sets of heating element above and below heating device including dividing, and each heating element includes runs through along furnace width direction many continuous type heating rod that furnace set up, many the continuous type heating rod is along conveyor direction of delivery interval arrangement in proper order.
More than one temperature-adjusting heating element is arranged between any two adjacent continuous heating rods in each heating assembly.
More than one continuous heating rod is arranged between any two adjacent temperature-adjusting heating elements.
All the temperature-adjusting heating elements and all the continuous heating rods which are positioned above the conveying device are positioned in the same horizontal plane, and all the temperature-adjusting heating elements and all the continuous heating rods which are positioned below the conveying device are positioned in the same horizontal plane.
The roller kiln is provided with a plurality of temperature adjusting heating elements which are sequentially arranged at intervals along the conveying direction of the conveying device.
All tempering heating elements are located in the same horizontal plane.
The hearth is provided with a temperature control area which is divided into temperature adjusting sections connected in sequence along the conveying direction of the conveying device, and all temperature adjusting heating elements in each temperature adjusting section are connected with an independent temperature control circuit.
Compared with the prior art, the invention has the advantages that:
the roller kiln is provided with the temperature-adjusting heating element which penetrates through the hearth along the width direction of the hearth, the middle non-heating section of the temperature-adjusting heating element is positioned at the middle position of the hearth and is not heated, and the two sections of side heating sections of the temperature-adjusting heating element are respectively positioned at the two side positions of the hearth and are heated, so that the temperatures at the two side positions of the hearth can be only increased, the temperature difference in the width direction of the hearth can be improved, the temperature uniformity in the width direction of the hearth is better, and the quality of heat-treated products can be improved. The roller kiln has the advantages of simple and convenient regulation and control, good regulation and control effect, simple structure, low cost, easy implementation and easy reconstruction of the existing equipment.
Drawings
Fig. 1 is a schematic front view structure diagram of a roller kiln.
Fig. 2 is a schematic partial main sectional structure view of the roller kiln.
Fig. 3 is a schematic side sectional structure view of a roller bed kiln.
Fig. 4 is a schematic view of a temperature-regulating heating element.
Fig. 5 is a schematic structural view of a continuous heating rod.
Illustration of the drawings:
1. a furnace body; 11. a hearth; 2. a conveying device; 3. a heating device; 31. a continuous heating rod; 4. a temperature-regulating heating element; 41. an intermediate non-heated section; 42. a side heating section.
Detailed Description
The invention is described in further detail below with reference to the figures and specific examples.
As shown in fig. 1 to 4, the roller kiln of the present embodiment includes a furnace body 1 having a hearth 11, a conveying device 2 and a heating device 3 are installed in the hearth 11, the roller kiln is provided with more than one temperature-adjusting heating element 4 penetrating through the hearth 11 along a width direction of the hearth 11, and the temperature-adjusting heating element 4 has a middle non-heating section 41 located at a middle position of the hearth 11 and two side heating sections 42 respectively corresponding to two side positions of the hearth 11. This roller kilns is equipped with and runs through the heating element 4 that adjusts the temperature that furnace 11 set up along 11 width direction of furnace, the middle non-heating section 41 of heating element 4 that adjusts the temperature is located 11 middle part positions of furnace and does not heat, two sections side heating sections 42 of heating element 4 that adjust the temperature are located 11 two lateral part positions of furnace respectively and heat, thereby only can promote the temperature of 11 two lateral part positions of furnace, realize improving the ascending difference in temperature of 11 width direction of furnace, make 11 width direction of furnace go up temperature homogeneity better, can improve the thermal treatment product quality. The roller kiln has the advantages of simple and convenient regulation and control, good regulation and control effect, simple structure, low cost, easy implementation and easy reconstruction of the existing equipment.
In this embodiment, the roller kiln is provided with a plurality of temperature adjusting heating elements 4, the plurality of temperature adjusting heating elements 4 are divided into two groups of elements, the two groups of elements are respectively disposed above and below the conveying device 2, and each group of elements includes more than two temperature adjusting heating elements 4 arranged at intervals in sequence along the conveying direction of the conveying device 2. This kind of setting mode can carry out the difference in temperature regulation and control to 11 sections of district at conveyor 2 direction of delivery of furnace, improves the whole difference in temperature in 11 districts of this furnace to make the whole temperature homogeneity in 11 districts of this furnace good.
In this embodiment, heating device 3 is including dividing two sets of heating element who locates heating device 3 top and below, and each heating element includes and runs through many continuous type heating rods 31 that furnace 11 set up along 11 width direction of furnace, and many continuous type heating rods 31 are arranged at interval along 2 direction of delivery of conveyor in proper order. The heating device 3 heats a section of the furnace 11 in the conveying direction of the conveying device 2.
In this embodiment, a temperature adjustment heating element 4 is disposed between any two adjacent continuous heating rods 31 in each heating assembly, that is, the continuous heating rods 31 and the temperature adjustment heating element 4 are alternately installed and arranged, the continuous heating rods 31 and the temperature adjustment heating element 4 are uniformly arranged in the furnace 11, and the distance between the temperature adjustment heating element 4 and the continuous heating rods 31 is also consistent, so that the temperature difference in the furnace 11 can be better adjusted, and the temperature uniformity in the furnace 11 is ensured. In other embodiments, more than two temperature-adjusting heating elements 4 can be disposed between any two adjacent continuous heating rods 31 in each heating assembly. More than one continuous heating rod 31 can be arranged between any two adjacent temperature-adjusting heating elements 4.
In the present embodiment, all the temperature-adjusting heating elements 4 and all the continuous heating rods 31 located above the conveying device 2 are located in the same horizontal plane, and all the temperature-adjusting heating elements 4 and all the continuous heating rods 31 located below the conveying device 2 are located in the same horizontal plane. The temperature adjusting heating element 4 and the continuous heating rod 31 are located at the same height, and the furnace 11 is uniformly heated during working, so that the temperature difference in the furnace 11 can be adjusted better, and the temperature uniformity in the furnace 11 is ensured.
In this embodiment, the furnace 11 is provided with a temperature control area, the temperature control area is divided into temperature adjustment areas connected in sequence along the conveying direction of the conveying device 2, all the temperature adjustment heating elements 4 in each temperature adjustment area are connected with an independent temperature control circuit, all the temperature adjustment heating elements 4 in each temperature adjustment area are controlled by the independent temperature control circuit connected with the temperature adjustment heating elements, the synchronous start and stop work is performed, the control difficulty can be reduced, the control system is simplified, the cost is saved, all the temperature adjustment heating elements 4 in the same temperature adjustment area are started and stopped synchronously, the synchronous temperature rise of all the parts in the temperature adjustment area during temperature control is uniform, and the improvement of the temperature uniformity in the furnace 11 is facilitated.
In this embodiment, the continuous heating rod 31 is a heating rod in a conventional roller kiln, and as shown in fig. 5, the two ends are mounting ends without heating function, and the middle is a heating part. The temperature-adjusting heating element 4 is also an existing heating element, is also customized according to the prior art, and can be obtained by welding a non-heating part and a heating part with required lengths. Preferably, the tempering heating elements 4 are rod-shaped, and the ends of the lateral heating sections 42 have mounting sections without heating effect.
The conveying device 2 in this embodiment is the prior art, and includes a plurality of conveying roller rods arranged at intervals in sequence and a driving mechanism for driving the conveying roller rods to rotate so as to convey materials.
In other embodiments, a plurality of temperature adjusting heating elements 4 may be further arranged in the roller kiln, the plurality of temperature adjusting heating elements 4 are sequentially arranged at intervals along the conveying direction of the conveying device 2, that is, the plurality of temperature adjusting heating elements 4 are arranged at intervals along the conveying direction of the conveying device 2 as a group, and the arrangement mode can also play a role in adjusting the temperature in the width direction of the hearth 11. The plurality of temperature control heating elements 4 are preferably arranged above the conveyor 2. Furthermore, all the temperature adjusting heating elements 4 are positioned in the same horizontal plane, so that the temperature difference in the hearth 11 can be adjusted better, and the temperature uniformity in the hearth 11 can be ensured.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above-described embodiments. Modifications and variations that may occur to those skilled in the art without departing from the spirit and scope of the invention are to be considered as within the scope of the invention.
Claims (9)
1. The utility model provides a roller path kiln, includes furnace body (1) that has furnace (11), install conveyor (2) and heating device (3) in furnace (11), its characterized in that: the roller kiln is provided with more than one temperature-adjusting heating element (4) which penetrates through the hearth (11) along the width direction of the hearth (11), wherein the temperature-adjusting heating element (4) is provided with a section of middle non-heating section (41) which is positioned at the middle position of the hearth (11) and two sections of side heating sections (42) which are respectively and correspondingly positioned at the two side positions of the hearth (11).
2. The roller bed kiln of claim 1, wherein: the roller kiln is provided with a plurality of temperature adjusting heating elements (4), the temperature adjusting heating elements (4) are divided into two groups of element groups, the two groups of element groups are arranged above and below the conveying device (2), and each group of element group comprises more than two temperature adjusting heating elements (4) which are arranged at intervals in sequence along the conveying direction of the conveying device (2).
3. The roller bed kiln of claim 2, wherein: heating device (3) are including dividing two sets of heating element who locates heating device (3) top and below, and each heating element includes and runs through along furnace (11) width direction many continuous type heating rod (31), many that furnace (11) set up continuous type heating rod (31) are along conveyor (2) direction of delivery interval arrangement in proper order.
4. The roller bed kiln of claim 3, wherein: more than one temperature-adjusting heating element (4) is arranged between any two adjacent continuous heating rods (31) in each heating assembly.
5. The roller bed kiln of claim 3, wherein: more than one continuous heating rod (31) is arranged between any two adjacent temperature-adjusting heating elements (4).
6. The roller bed kiln of claim 3, wherein: all the temperature-adjusting heating elements (4) and all the continuous heating rods (31) which are positioned above the conveying device (2) are positioned in the same horizontal plane, and all the temperature-adjusting heating elements (4) and all the continuous heating rods (31) which are positioned below the conveying device (2) are positioned in the same horizontal plane.
7. The roller bed kiln of claim 1, wherein: the roller kiln is provided with a plurality of temperature adjusting heating elements (4), and the temperature adjusting heating elements (4) are sequentially arranged at intervals along the conveying direction of the conveying device (2).
8. The roller bed kiln of claim 7, wherein: all temperature-regulating heating elements (4) are located in the same horizontal plane.
9. Roller bed kiln according to any one of claims 2 to 8, characterized in that: the hearth (11) is provided with a temperature control area, the temperature control area is divided into temperature adjusting sections which are sequentially connected along the conveying direction of the conveying device (2), and all temperature adjusting heating elements (4) in each temperature adjusting section are connected with an independent temperature control circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911395987.0A CN111089475A (en) | 2019-12-30 | 2019-12-30 | Roller kiln |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911395987.0A CN111089475A (en) | 2019-12-30 | 2019-12-30 | Roller kiln |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111089475A true CN111089475A (en) | 2020-05-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911395987.0A Pending CN111089475A (en) | 2019-12-30 | 2019-12-30 | Roller kiln |
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| CN (1) | CN111089475A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112648853A (en) * | 2020-12-18 | 2021-04-13 | 合肥恒力装备有限公司 | Temperature control method for improving temperature uniformity of ultra-wide hearth |
-
2019
- 2019-12-30 CN CN201911395987.0A patent/CN111089475A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112648853A (en) * | 2020-12-18 | 2021-04-13 | 合肥恒力装备有限公司 | Temperature control method for improving temperature uniformity of ultra-wide hearth |
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