Sectional type heating mantle easy to disassemble and assemble

Abstract

The utility model discloses a sectional type heating mantle easy to disassemble and assemble, which belongs to the technical field of industrial kilns and comprises a kiln body, and a plurality of sectional heating mechanisms used for sectional temperature control heating are arranged on the inner side of the kiln body. The adjacent segmented heating mechanisms are separated by refractory fiber cotton; the sectional heating mechanism comprises a heat supply device and a heating device, and the heat supply device is arranged at the inner bottom of the kiln body; the heating device is arranged at the upper end of the heat supply device; the heat supply device is used for supplying heat to the heating device; heating covers are arranged at the upper ends of the heating devices, and the adjacent heating covers are connected through dismounting mechanisms. By means of the mode, the heat supply device stably supplies heat to the heating devices, so that the temperatures in the different heating devices are different, the temperature gradient with a plurality of temperature zones is formed, the temperatures in the heating devices are kept relatively stable, and the situation that the local temperature is too high due to uneven temperature rising is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of industrial kilns, in particular to a segmented heating cover which is easy to assemble and disassemble. Background Art

[0002] The field of industrial kilns is a comprehensive field involving multiple disciplines and technologies. It mainly focuses on the use of equipment kilns made of refractory materials to complete the process of high-temperature calcination, heat treatment or firing of materials into products.

[0003] Chinese patent CN219160931U, a segmented rotary kiln, includes a placement table, wherein the upper side of the placement table is equipped with a first rotary kiln, a second rotary kiln and a third rotary kiln, and a first connecting pipe is installed between the first rotary kiln and the second rotary kiln, and a second connecting pipe is installed between the second rotary kiln and the third rotary kiln. The first rotary kiln is equipped with a stopper and a spiral plate for rotation, the second rotary kiln is equipped with a pressure block and a rotating rod, and the third rotary kiln is equipped with a baffle. In this utility model, the drying efficiency of the iron phosphate material can be accelerated; the iron phosphate material can be broken up, and the iron phosphate material can be turned over to prevent the material from always sticking to the inner wall. At the same time, the material can be heated evenly inside and outside to prevent a large amount of agglomeration. However, the rotary kiln still has the following problems:

[0004] The hot flue gas generated inside the rotary kiln is directed to the front of the kiln with the help of a blower, forming a change in the temperature curve to adapt to the physical and chemical changes occurring in each temperature zone. However, due to the different exhaust gas negative pressures received by each point on the cross section, large local temperature differences will occur.

[0005] Based on this, the utility model designs a segmented heating cover that is easy to disassemble and assemble to solve the above problems. Utility Model Content

[0006] In view of the above-mentioned shortcomings of the prior art, the utility model provides a segmented heating cover that is easy to assemble and disassemble.

[0007] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0008] An easily disassembled segmented heating cover comprises a kiln body,

[0009] The inner side of the kiln body is provided with a plurality of segmented heating mechanisms for segmented temperature control and heating; adjacent segmented heating mechanisms are separated by refractory fiber cotton;

[0010] The segmented heating mechanism includes a heat supply device and a heating device. The heat supply device is arranged at the inner bottom of the kiln body; the heating device is arranged at the upper end of the heat supply device; the heat supply device is used to heat the heating device;

[0011] A heating cover is provided at the upper end of the heating device, and adjacent heating covers are connected via a disassembly mechanism.

[0012] Furthermore, the heat supply device includes a heating zone, a heat source and air holes. The heating zone is arranged at the bottom of the kiln body; the heat source is arranged inside the heating zone and provides heat through natural gas combustion; and the air holes are arranged at the upper end of the heating zone.

[0013] Furthermore, the heating device includes a heating chamber, a smoke exhaust port and a buffer gap. The heating chamber is arranged at the upper end of the heating zone, and the heating zone and the heating chamber are connected through air holes; the smoke exhaust port is arranged at the upper end of the heating cover; and a buffer gap is arranged between adjacent heating devices.

[0014] Furthermore, a temperature sensor is provided in each heating chamber.

[0015] Furthermore, the disassembly mechanism includes a protrusion, a groove and a locking device, a groove is provided on the right side of the heating cover; a protrusion corresponding to the groove is fixedly connected to the left side of the heating cover; the locking device is arranged on the inner side of the groove; the protrusion is inserted into the inner side of the groove, and adjacent heating covers are connected by the locking device.

[0016] Furthermore, the locking device includes a sliding rod, a handle, a locking block, a through groove, a limiting groove, a locking groove and a giving groove. The sliding rod is slidably connected to the heating cover; the upper end of the sliding rod passes through the heating cover and is fixedly connected to the handle, and the locking block is fixedly connected to the lower end of the sliding rod on the inner side of the groove; a through groove is provided on the inner side of the protrusion; a limiting groove is provided at the bottom of the groove, and a locking groove is provided at the bottom of the limiting groove; and a giving groove is provided at the top of the groove.

[0017] Furthermore, the shape and size of the through slot correspond to those of the locking block.

[0018] Furthermore, the shapes and sizes of the locking groove and the giving way groove correspond to those of the locking block.

[0019] Compared with the prior art, the present invention has the following beneficial effects: in the present invention, the heating device stably supplies heat to the heating device, and the different opening degrees of the heating device make the temperatures inside different heating devices different, forming a temperature gradient with multiple temperature zones, and the temperature inside the heating device remains relatively stable, avoiding uneven temperature rise causing local excessive temperature; the disassembly mechanism realizes rapid disassembly between the heating covers, and the addition and subtraction of heating covers and segmented heating mechanisms can increase or decrease different temperature gradients. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be derived from these drawings without inventive effort.

[0021] Figure 1 This is a front view of a segmented heating cover that is easy to disassemble and assemble according to the utility model;

[0022] Figure 2 This is a right side view of a segmented heating cover that is easy to disassemble and assemble according to the utility model;

[0023] Figure 3 The three-dimensional heating cover of the utility model Figure 1 ;

[0024] Figure 4 The three-dimensional heating cover of the utility model Figure 2 ;

[0025] Figure 5 The three-dimensional heating cover of the utility model Figure 3 ;

[0026] Figure 6 This is a table of thermal expansion coefficients of the high-temperature resistant material of the present invention.

[0027] The numbers in the figure represent:

[0028] 10. Kiln body; 11. Heating hood; 2. Segmented heating mechanism; 21. Heating device; 211. Heating zone; 212. Heat source; 213. Air hole; 22. Heating device; 221. Heating chamber; 222. Smoke exhaust port; 223. Buffer gap; 3. Disassembly mechanism; 31. Bump; 32. Groove; 33. Locking device; 331. Slide rod; 332. Handle; 333. Locking block; 334. Through groove; 335. Limiting groove; 336. Locking groove; 337. Giving groove. DETAILED DESCRIPTION

[0029] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0030] The terms “left,” “right,” “front,” “back,” “up,” and “down” mentioned in the following description are oriented in the viewing direction of the front view.

[0031] Example 1: In some embodiments, please refer to the accompanying drawings of the specification. Figures 1-6 , a segmented heating cover that is easy to disassemble and assemble, comprising a kiln body 10,

[0032] The inner side of the kiln body 10 is provided with a plurality of segmented heating mechanisms 2 for segmented temperature control and heating; adjacent segmented heating mechanisms 2 are separated by refractory fiber cotton;

[0033] The segmented heating mechanism 2 includes a heat supply device 21 and a heating device 22. The heat supply device 21 is arranged at the inner bottom of the kiln body 10; the heating device 22 is arranged at the upper end of the heat supply device 21; the heat supply device 21 is used to heat the heating device 22;

[0034] A heating cover 11 is provided at the upper end of the heating device 22 , and adjacent heating covers 11 are connected via a disassembly mechanism 3 .

[0035] In the present invention, the heating device 21 stably supplies heat to the heating device 22. Through the different opening degrees of the heating device 21, the temperatures inside different heating devices 22 are different, forming a temperature gradient with multiple temperature zones, and the temperature inside the heating device 22 remains relatively stable, avoiding uneven temperature rise causing local excessive temperature; the disassembly mechanism 3 is used to achieve rapid disassembly between the heating covers 11, and the heating covers 11 and the segmented heating mechanism 2 can be increased or decreased to increase or decrease different temperature gradients.

[0036] The heating device 21 includes a heating area 211, a heat source 212 and an air hole 213. The heating area 211 is arranged at the bottom of the kiln body 10; the heat source 212 is arranged inside the heating area 211 and provides heat by burning natural gas; the air hole 213 is arranged at the upper end of the heating area 211;

[0037] The heating device 22 includes a heating chamber 221, a smoke exhaust port 222 and a buffer gap 223. The heating chamber 221 is arranged at the upper end of the heating area 211, and the heating area 211 and the heating chamber 221 are connected through the air hole 213; the smoke exhaust port 222 is arranged at the upper end of the heating cover 11; a buffer gap 223 is set between adjacent heating devices 22; and a temperature sensor is respectively set in each heating chamber 221.

[0038] In the present invention, a heat source 212 is provided by natural gas combustion inside the heating zone 211, and the hot flue gas passes through the air holes 213 to evenly heat the heating chamber 221. The heated flue gas is discharged through the exhaust port 222. Under the isolation of the refractory fiber cotton, the heating chamber 221 is evenly heated and the temperature inside the heating chamber 221 is kept stable. A temperature sensor is provided in each heating chamber 221 to facilitate stable temperature control. A buffer gap 223 is provided between the heating devices 22 to prevent the kiln body 10 from excessively squeezing the fiber cotton after expanding due to heat, causing the heating cover 11 to be loaded.

[0039] The disassembly mechanism 3 includes a protrusion 31, a groove 32 and a locking device 33. The groove 32 is provided on the right side of the heating cover 11; the protrusion 31 corresponding to the groove 32 is fixedly connected to the left side of the heating cover 11; the locking device 33 is arranged inside the groove 32; the protrusion 31 is inserted into the inner side of the groove 32, and adjacent heating covers 11 are connected by the locking device 33;

[0040] The locking device 33 includes a slide rod 331, a handle 332, a locking block 333, a through groove 334, a limiting groove 335, a locking groove 336 and a giving groove 337. The slide rod 331 is slidably connected to the heating cover 11; the upper end of the slide rod 331 passes through the heating cover 11 and is fixedly connected to the handle 332, and the locking block 333 is fixedly connected to the lower end of the slide rod 331 on the inner side of the groove 32; a through groove 334 corresponding to the shape and size of the locking block 333 is provided on the inner side of the protrusion 31; a limiting groove 335 is provided at the bottom of the groove 32, and a locking groove 336 is provided at the bottom of the limiting groove 335; a giving groove 337 is provided at the top of the groove 32; the shape and size of the locking groove 336 and the giving groove 337 correspond to the locking block 333.

[0041] When the locking block 333 is rotated to the left of the locking cam 336, the locking cam 333 is rotated to the right of the locking cam 337. When the locking cam 333 is rotated to the right of the locking cam 337, the locking cam 333 is rotated to the left of the locking cam 337. When the locking cam 333 is rotated to the right of the locking cam 337, the locking cam 333 is rotated to the left of the locking cam 337. The sliding rod 331 is driven to move downward, and the sliding rod 331 drives the locking block 333 to move to the inner side of the locking groove 336, thereby realizing quick assembly between adjacent heating covers 11; when it is necessary to disassemble adjacent heating covers 11, the handle 332 is pulled to make the locking block 333 move upward to the inner side of the limiting groove 335, and the handle 332 is turned to drive the locking block 333 to rotate until it is aligned with the through groove 334, and the handle 332 is pulled to drive the locking block 333 to move upward through the through groove 334 to the inner side of the giving groove 337, so that the lock between the adjacent heating covers 11 can be released.

[0042] In the present invention, the handle 332 is controlled to drive the slide bar 331 and the locking block 333 to move, thereby changing the position of the locking block 333 , thereby achieving rapid assembly and disassembly between adjacent heating covers 11 .

[0043] Example 2: In some embodiments, please refer to the accompanying drawings of the specification. Figure 6 , calculate the buffer gap 223 at different temperatures:

[0044] Assume that the radial expansion is Δd, the unidirectional displacement is d, the cylinder diameter is D, the thermal expansion coefficient is α, the temperature is T, and an appropriate safety margin is selected and set as σ, then:

[0045] Δd=D*α*T

[0046] Substituting different temperatures T and the thermal expansion coefficient α at different temperatures T into the above formula, we can obtain the radial expansion Δd at different temperatures.

[0047] When the temperature is 1000°C, the radial expansion Δd is calculated to be 29.375 mm;

[0048] When the temperature is 800°C, the radial expansion Δd is calculated to be 24 mm;

[0049] When the temperature is 600°C, the radial expansion Δd is calculated to be 18.875 mm;

[0050] There are also:

[0051] d=Δd / 2+σ

[0052] Substituting the obtained radial expansion Δd and the safety margin σ into the above formula, the unidirectional displacement d can be calculated. The unidirectional displacement d is the buffer gap 223 of the nozzle at different temperatures.

[0053] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A segmented heating cover that is easily disassembled and assembled, comprising a kiln body (10), characterized in that: The inner side of the kiln body (10) is provided with a plurality of segmented heating mechanisms (2) for segmented temperature control heating; adjacent segmented heating mechanisms (2) are separated by refractory fiber cotton; The segmented heating mechanism (2) comprises a heat supply device (21) and a heating device (22), wherein the heat supply device (21) is arranged at the inner bottom of the kiln body (10); the heating device (22) is arranged at the upper end of the heat supply device (21); the heat supply device (21) is used to supply heat to the heating device (22); A heating cover (11) is provided at the upper end of the heating device (22), and adjacent heating covers (11) are connected via a disassembly mechanism (3).

2. The easily detachable segmented heating cover according to claim 1, characterized in that: The heat supply device (21) comprises a heating zone (211), a heat source (212) and an air hole (213). The heating zone (211) is arranged at the bottom of the kiln body (10); the heat source (212) is arranged inside the heating zone (211) and is provided by burning natural gas; and the air hole (213) is arranged at the upper end of the heating zone (211).

3. The easily detachable segmented heating cover according to claim 2, characterized in that: The heating device (22) comprises a heating chamber (221), a smoke exhaust port (222) and a buffer gap (223); the heating chamber (221) is arranged at the upper end of the heating zone (211), and the heating zone (211) and the heating chamber (221) are connected through the air hole (213); the smoke exhaust port (222) is arranged at the upper end of the heating cover (11); and a buffer gap (223) is provided between adjacent heating devices (22).

4. The easily detachable segmented heating cover according to claim 3, characterized in that: A temperature sensor is respectively provided in each heating chamber (221).

5. The easily detachable segmented heating cover according to claim 4, characterized in that: The disassembly mechanism (3) comprises a protrusion (31), a groove (32) and a locking device (33); the right side of the heating cover (11) is provided with a groove (32); the left side of the heating cover (11) is fixedly connected with a protrusion (31) corresponding to the groove (32); the locking device (33) is arranged inside the groove (32); the protrusion (31) is inserted into the inside of the groove (32), and adjacent heating covers (11) are connected via the locking device (33).

6. The easily detachable segmented heating cover according to claim 5, characterized in that: The locking device (33) comprises a slide bar (331), a handle (332), a locking block (333), a through groove (334), a limiting groove (335), a locking groove (336) and a clearance groove (337); the slide bar (331) is slidably connected to the heating cover (11); the upper end of the slide bar (331) passes through the heating cover (11) and is fixedly connected to the handle (332); the locking block (333) is fixedly connected to the lower end of the slide bar (331) on the inner side of the groove (32); a through groove (334) is provided on the inner side of the protrusion (31); a limiting groove (335) is provided at the bottom of the groove (32), and a locking groove (336) is provided at the bottom of the limiting groove (335); and a clearance groove (337) is provided at the top of the groove (32).

7. The easily detachable segmented heating cover according to claim 6, characterized in that: The shape and size of the through slot (334) correspond to those of the locking block (333).

8. The easily detachable segmented heating cover according to claim 7, characterized in that: The shapes and sizes of the locking groove (336) and the clearance groove (337) correspond to those of the locking block (333).

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