A high-efficiency heating tubular industrial kiln

Abstract

The present application belongs to the technical field of tubular kiln, especially relates to a high-efficiency tubular industrial kiln, which comprises a sintering furnace, an electric heater and the like; the sintering furnace is provided with the electric heater. The present application realizes the separation of the space in the inner container into a plurality of first heating cavities, a plurality of second heating cavities and a third heating cavity by additionally arranging a first partition plate, a second partition plate, a third partition plate, a first insulation ring and a second insulation ring, so that different sizes of materials are screened into the first heating cavities, the second heating cavities and the third heating cavity during the rotation of the inner container, the materials originally stacked at the bottom of the inner container are dispersed into different areas of the inner container, the space utilization of the inner container is improved, and the materials do not need to be sieved during sintering, then the screened materials are sequentially sintered, which is beneficial to improving the sintering efficiency of the materials.

Description

Technical Field

[0001] This invention belongs to the field of tubular kiln technology, and particularly relates to a high-efficiency heating tubular industrial kiln. Background Technology

[0002] When using a tubular kiln to sinter materials, the materials only come into contact with the bottom of the inner liner, resulting in low utilization of the inner liner space. Furthermore, since materials of different particle sizes require different sintering times, existing technologies require sieving the materials before sintering, and then sintering the sieved materials one by one, which is cumbersome and time-consuming. Summary of the Invention

[0003] In order to overcome the shortcomings of existing tubular kilns where materials only contact the bottom of the inner liner during sintering, resulting in low utilization of the inner liner space, this invention provides a high-efficiency heating tubular industrial kiln.

[0004] The technical solution is as follows: A high-efficiency heated tubular industrial kiln includes a sintering furnace and an electric heater; the electric heater is installed inside the sintering furnace; it also includes an inner liner, a connecting block, a first partition plate, a second partition plate, a first isolation ring, a second isolation ring, a third partition plate, a transmission assembly, and an air inlet and feeding assembly; the inner liner is installed inside the electric heater; the air inlet and feeding assembly for feeding and discharging materials and providing protective gas is connected to the sintering furnace; the transmission assembly for driving the inner liner to rotate is connected to the sintering furnace; a plurality of first partition plates arranged in a circular array are fixedly connected to the inner wall of the inner liner, the first partition plates being L-shaped; a connecting block is fixedly connected inside the inner liner; and a connecting block is fixedly connected to the connecting block. Several second partition plates arranged in a ring array, the second partition plates being Z-shaped; several third partition plates arranged in a ring array fixed to the connecting block; all first partition plates are located outside the corresponding second partition plates; all second partition plates are located outside the corresponding third partition plates; the connecting block is connected to a first isolation ring and a second isolation ring, the first isolation ring being located outside the second isolation ring; the first isolation ring is located between the first partition plate and the second partition plate, and the second isolation ring is located between the second partition plate and the third partition plate; the contact portions of the first isolation ring and the second isolation ring with the corresponding first partition plate and the second partition plate are both set as semi-circular rings.

[0005] Furthermore, the air inlet and feeding assembly includes: a feed pipe, a discharge pipe, an air inlet pipe, and an air outlet pipe; a feed pipe is rotatably connected to one end of the inner liner; a discharge pipe is rotatably connected to the other end of the inner liner; a first isolation ring and a second isolation ring are both slidably connected to the discharge pipe; both the feed pipe and the discharge pipe are fixedly connected to the sintering furnace, and both the feed pipe and the discharge pipe are connected to the inner liner; an air inlet pipe is connected to the feed pipe; and an air outlet pipe is connected to the discharge pipe.

[0006] Furthermore, both the feed pipe and the discharge pipe are screwed with sealing caps.

[0007] Furthermore, a handle is provided on the sealing cap.

[0008] Furthermore, it also includes a pressure gauge; a pressure gauge for detecting the flow pressure of the protective gas is fixed to the outlet pipe.

[0009] Furthermore, it also includes protrusions; several protrusions are fixedly attached to both the first and second partition plates, and the protrusion density on the first partition plate is greater than the protrusion density on the second partition plate.

[0010] Furthermore, it also includes a pressure ring, a toggle block, and a spring; a pressure ring is fixedly connected to both the first and second isolation rings; all pressure rings are rotatably connected to the connecting block; two extrusion parts are provided inside the connecting block; each extrusion part is fitted with a corresponding pressure ring; several toggle blocks are fixedly connected to both the first and second isolation rings; a spring is fixedly connected between both the first and second isolation rings and the discharge pipe.

[0011] Furthermore, it also includes limiting blocks; several limiting blocks arranged in a ring array are fixedly connected to both the first and second isolation rings; the limiting blocks are slidably connected to the discharge pipe.

[0012] Furthermore, it also includes hydraulic push rods; the sintering furnace consists of a sintering section and a control section; the sintering section and the control section are rotatably connected; several hydraulic push rods are fixedly connected to the control section, and the output ends of the hydraulic push rods are fixedly connected to the sintering section; the hydraulic push rods are located away from the rotatable connection point between the sintering section and the control section.

[0013] Furthermore, the discharge pipe is equipped with three discharge channels; each discharge channel is connected to the first heating chamber, the second heating chamber and the third heating chamber respectively; each discharge channel of the discharge pipe is connected to the inside of the inner liner.

[0014] The beneficial effects of this invention are as follows: By adding a first partition plate, a second partition plate, a third partition plate, a first isolation ring, and a second isolation ring to the inner liner, the space inside the inner liner is divided into several first heating chambers, several second heating chambers, and a third heating chamber. During the rotation of the inner liner, materials of three different sizes (large, medium, and small) are screened into the first heating chamber, the second heating chamber, and the third heating chamber, respectively. This disperses the materials that were originally piled up at the bottom of the inner liner into different areas of the inner liner, improving the space utilization rate of the inner liner. Furthermore, it eliminates the need to screen the materials during sintering and then sinter the screened materials sequentially, which helps to improve the sintering efficiency of the materials.

[0015] When the material rolls from left to right in the first and second heating chambers, the protrusions block the material, slowing down the rolling speed and increasing the residence time of the material in the inner chamber. At the same time, the first, second and third heating chambers produce three different discharge speeds, thereby heating the material in different heating chambers for different durations to ensure the sintering effect of materials of different sizes.

[0016] During the continuous rotation of the inner liner, the connecting block and spring continuously drive the first and second isolation rings to move left and right, which in turn drives the actuating blocks on the first and second isolation rings to move the material stuck at the connection of the heating chamber, ensuring that the material is screened normally, ensuring the sintering effect of the material, and ensuring that the material is discharged normally. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the high-efficiency heating tubular industrial kiln of the present invention.

[0018] Figure 2 This is a three-dimensional structural diagram of the transmission component of the present invention;

[0019] Figure 3 Exploded view of the electric heater, inner liner, feed pipe, discharge pipe and connecting block of the present invention;

[0020] Figure 4 Exploded view of the connecting block, first partition plate, second partition plate, first isolation ring, second isolation ring group and third partition plate of the present invention;

[0021] Figure 5 This is a cross-sectional view of the connecting block, first partition plate, second partition plate, first isolation ring, second isolation ring and third partition plate of the present invention;

[0022] Figure 6 This is a cross-sectional view of the inner liner, first partition plate, second partition plate, first isolation ring, second isolation ring and third partition plate of the present invention;

[0023] Figure 7 This is a three-dimensional structural diagram of the discharge pipe, the first isolation ring, the second isolation ring, and the spring assembly of the present invention.

[0024] Figure 8 This is a diagram showing the discharge state of the sintering furnace according to the present invention;

[0025] Figure 9 This is a cross-sectional view of the discharge pipe of the present invention.

[0026] Reference numerals: 1-Sintering furnace, 1001-Sintering section, 1002-Control section, 2-Electric heater, 3-Inner liner, 4-Hydraulic push rod, 101-Feed pipe, 10101-Sealing cover, 102-Discharge pipe, 103-Servo motor, 104-Belt drive mechanism, 105-Connecting block, 10501-Extrusion section, 106-First partition plate, 107-Second partition plate, 10701-First heating chamber, 10702-Second heating chamber, 10703-Third heating chamber, 108-First isolation ring, 109-Second isolation ring, 110-Pressure ring, 111-Actuating block, 112-Spring, 113-Third partition plate, 114-Protrusion, 115-Limiting block, 201-Air inlet pipe, 202-Air outlet pipe, 203-Pressure gauge. Detailed Implementation

[0027] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0028] Example 1: A high-efficiency heating tubular industrial kiln, such as Figures 1-9 As shown, the system includes a sintering furnace 1 and an electric heater 2; the electric heater 2 is installed inside the sintering furnace 1; it also includes an inner liner 3, a connecting block 105, a first partition plate 106, a second partition plate 107, a first isolation ring 108, a second isolation ring 109, a third partition plate 113, a transmission assembly, and an air inlet and feeding assembly; the inner liner 3 is installed inside the electric heater 2; the air inlet and feeding assembly is connected to the sintering furnace 1; the transmission assembly is connected to the sintering furnace 1; a plurality of first partition plates 106 arranged in a ring array are fixed to the inner wall of the inner liner 3, the first partition plates 106 being L-shaped; a connecting block 105 is fixed inside the inner liner 3; a plurality of second partition plates 107 arranged in a ring array are fixed to the connecting block 105, the second partition plates 107 being Z-shaped; the connecting block 106... A plurality of third partition plates 113 arranged in a ring are fixedly connected to the connecting block 105; all the first partition plates 106 are located outside the corresponding second partition plates 107; all the second partition plates 107 are located outside the corresponding third partition plates 113; a first isolation ring 108 and a second isolation ring 109 are connected to the connecting block 105, the first isolation ring 108 is located outside the second isolation ring 109; the first isolation ring 108 is located between the first partition plate 106 and the second partition plate 107, and the second isolation ring 109 is located between the second partition plate 107 and the third partition plate 113; the contact parts of the first isolation ring 108 and the second isolation ring 109 with the corresponding first partition plate 106 and the second partition plate 107 are all set as semi-circular rings.

[0029] The transmission components include: a servo motor 103 and a belt drive mechanism 104; two symmetrically arranged servo motors 103 are fixedly mounted on the sintering furnace 1; a belt drive mechanism 104 is connected between the output end of each servo motor 103 and the inner liner 3.

[0030] The air inlet and feeding assembly includes: a feed pipe 101, a discharge pipe 102, an air inlet pipe 201, and an air outlet pipe 202; the feed pipe 101 is rotatably connected to one end of the inner liner 3; the discharge pipe 102 is rotatably connected to the other end of the inner liner 3; the first isolation ring 108 and the second isolation ring 109 are both slidably connected to the discharge pipe 102; the feed pipe 101 and the discharge pipe 102 are both fixedly connected to the sintering furnace 1, and both the feed pipe 101 and the discharge pipe 102 are connected to the inner liner 3; the air inlet pipe 201 is connected to the feed pipe 101, and the air inlet pipe 201 is connected to an external air pump; the air outlet pipe 202 is connected to the discharge pipe 102, and the air outlet pipe 202 is connected to an external gas recovery device.

[0031] Both the feed pipe 101 and the discharge pipe 102 are screwed with sealing caps 10101 to prevent the leakage of protective gas and the entry of outside air into the inner liner 3, which would affect sintering.

[0032] The sealing cover 10101 is equipped with a handle to facilitate workers to remove the sealing cover 10101.

[0033] It also includes a pressure gauge 203; a pressure gauge 203 is fixedly connected to the vent pipe 202.

[0034] It also includes protrusions 114; a number of protrusions 114 are fixedly attached to both the first partition plate 106 and the second partition plate 107, and the density of protrusions 114 on the first partition plate 106 is greater than the density of protrusions 114 on the second partition plate 107.

[0035] It also includes a pressure ring 110, a toggle block 111, and a spring 112; a pressure ring 110 is fixedly connected to both the first isolation ring 108 and the second isolation ring 109; all pressure rings 110 are rotatably connected to the connecting block 105; two extrusion parts 10501 are provided inside the connecting block 105; each extrusion part 10501 is engaged with the corresponding pressure ring 110; several toggle blocks 111 are fixedly connected to both the first isolation ring 108 and the second isolation ring 109; a spring 112 is fixedly connected between both the first isolation ring 108 and the second isolation ring 109 and the discharge pipe 102.

[0036] It also includes limiting blocks 115; several limiting blocks 115 are fixedly connected to the first isolation ring 108 and the second isolation ring 109 in a ring array; the limiting blocks 115 are slidably connected to the discharge pipe 102, and the limiting blocks 115 are used to restrict the first isolation ring 108 and the second isolation ring 109 to prevent the first isolation ring 108 and the second isolation ring 109 from rotating.

[0037] It also includes hydraulic push rods 4; the sintering furnace 1 is composed of a sintering section 1001 and a control section 1002; the sintering section 1001 and the control section 1002 are rotatably connected; four hydraulic push rods 4 are fixedly connected to the control section 1002, and the output end of the hydraulic push rods 4 is fixedly connected to the sintering section 1001; the hydraulic push rods 4 are far away from the rotatable connection point between the sintering section 1001 and the control section 1002.

[0038] The working principle of the above embodiment is as follows: First, the granular material to be sintered is fed into the inner liner 3 through an external feeding device. Specifically, the granular material enters the inner liner 3 through the feed pipe 101. While the material is being fed into the inner liner 3, the electric heater 2 operates to heat the inner liner 3. Taking a left-to-right view as a reference, the servo motor 103 drives the belt drive mechanism 104 to drive the inner liner 3 to rotate. The granular material moves within the inner liner 3, replacing the traditional static sintering method in a sagger, ensuring the uniformity and stability of the heating of the granular material. At the same time, the worker selects a suitable gas in advance based on the properties of the granular material, such as nitrogen (used for metals and carburizing). The process involves various gas types, including silicon (for sintering non-oxidation sensitive materials), argon (for sintering highly reactive metals and semiconductor materials), and hydrogen (for reduction sintering of metal oxides and deoxidation of hard alloys). After the worker puts the material into the inner liner 3, the worker installs the sealing caps 10101 on the feed pipe 101 and the discharge pipe 102. Then, an external air pump sends the required gas into the inner liner 3 through the air inlet pipe 201, and the gas in the inner liner 3 is discharged through the air outlet pipe 202 and recycled to ensure the sintering effect of the granular material. During the sintering process, as the inner liner 3 rotates, the granular material will gradually move to the right and be discharged into the discharge pipe 102.

[0039] Considering that during material sintering, although the rotation of the inner liner 3 ensures the uniformity and stability of heating, the material only contacts the bottom of the inner liner 3 due to gravity, resulting in low space utilization of the inner liner 3; and when there are differences in particle size, to avoid over-sintering of small particles and under-sintering of large particles, the existing technology requires sieving the material before sintering, and then sintering the sieved material sequentially, which is cumbersome and time-consuming. Therefore, if... Figure 6As shown: The inner wall of the inner liner 3, the first partition plate 106, and the first isolation ring 108 together form several first heating chambers 10701; the second partition plate 107, the first isolation ring 108, and the second isolation ring 109 together form several second heating chambers 10702; the second isolation ring 109 and the third partition plate 113 together form a third heating chamber 10703. When material enters the inner liner 3, the material first rolls into the first heating chamber 10701. Then, as the inner liner 3 rotates, it drives the second partition plate 107, the first partition plate 106, and the third partition plate 113 to rotate. The material rolling into the first heating chamber 10701 will synchronously follow the rotation of the first partition plate 106. When the first heating chamber 10701 with material rotates to the upper half of the inner liner 3, because the middle of the first isolation ring 108 and the second isolation ring 109 are set in a semi-circular shape, the first heating chamber 10701 and the second heating chamber 10702 are in a connected state. Heating chamber 10702 and third heating chamber 10703 are connected. Therefore, during the rotation of the inner liner 3, the material will gradually roll from the first heating chamber 10701 into the second heating chamber 10702, and then from the second heating chamber 10702 into the third heating chamber 10703. The connecting channel between the first heating chamber 10701 and the second heating chamber 10702 is only for small and medium-sized particles; while the connecting channel between the second heating chamber 10702 and the third heating chamber 10703 is only for small particles. In this way, large, medium and small materials are screened into the first heating chamber 10701, the second heating chamber 10702 and the third heating chamber 10703 respectively, so that the material originally piled up at the bottom of the inner liner 3 is dispersed to different areas of the inner liner 3, improving the space utilization of the inner liner 3. Moreover, it is not necessary to screen the material during sintering and then sinter the screened material in sequence, which helps to improve the sintering efficiency of the material.

[0040] Furthermore, both the first partition plate 106 and the second partition plate 107 have several protrusions 114 fixedly attached to their sidewalls; when the material rolls from left to right in the first heating chamber 10701 and the second heating chamber 10702, the protrusions 114 block the material, slowing down its rolling speed and increasing its residence time in the inner liner 3. Since the inner wall of the third partition plate 113 is smooth, small materials in the third heating chamber 10703 are not obstructed. Furthermore, the density of the protrusions 114 on the first partition plate 106 is greater than the density of the protrusions 114 on the second partition plate 107, making the first partition plate 106 more resistant to rolling. The material rolling speed in the first heating chamber 10701 is lower than that in the second heating chamber 10702, resulting in three different discharge speeds in the first heating chamber 10701, the second heating chamber 10702, and the third heating chamber 10703. This allows for heating of the material in different heating chambers for different durations, ensuring the sintering effect of materials of different sizes. It should be noted that since the time for material to be discharged from the inner liner 3 depends on the rotation speed of the inner liner 3, this invention, when simultaneously sintering materials of different sizes, simply sets the rotation speed of the inner liner 3 to allow smaller materials to complete sintering and be discharged normally.

[0041] It should be noted that the first partition plate 106, the second partition plate 107, the third partition plate 113, the first isolation ring 108, and the second isolation ring 109 are all made of alloys or other materials with high thermal conductivity to ensure efficient heat transfer and sintering.

[0042] Furthermore, when the material in the first heating chamber 10701 rolls into the second heating chamber 10702, and the material in the second heating chamber 10702 rolls into the third heating chamber 10703, the material is prone to getting stuck at the connection between the first heating chamber 10701 and the second heating chamber 10702 and the third heating chamber 10703. This prevents the material from being properly screened, affecting the sintering of the material, and also causes material residue to remain in the inner liner 3, which cannot be discharged, affecting the sintering of the next batch of material. Therefore, if... Figure 4 and Figure 6As shown, in the initial state, the extrusion part 10501 and the pressure ring 110 are engaged, forming a complete ring together. During the rotation of the inner liner 3, the connecting block 105 rotates synchronously with the inner liner 3. At this time, the extrusion part 10501 of the connecting block 105 rotates and pushes the pressure ring 110 to the right, forcing the pressure ring 110 to drive the first isolation ring 108 and the second isolation ring 109 to move to the right, causing the spring 112 between the first isolation ring 108, the second isolation ring 109 and the discharge pipe 102 to contract. When part 10501 and pressure ring 110 re-fit to form a complete ring, spring 112 pushes the first isolation ring 108 and the second isolation ring 109 to move to the left. As the inner liner 3 continues to rotate, the connecting block 105, in conjunction with spring 112, continuously drives the first isolation ring 108 and the second isolation ring 109 to move left and right. This causes the actuating blocks 111 on the first isolation ring 108 and the second isolation ring 109 to move the material stuck at the heating chamber connection, ensuring that the material is screened normally, ensuring the sintering effect of the material, and ensuring that the material is discharged normally.

[0043] Based on the above-mentioned technical effects, the present invention also has the following advantages: Figure 1 As shown: A pressure gauge 203 is fixedly connected to the gas outlet pipe 202. During the operation of the sintering furnace 1, the flow pressure in the inner liner 3 can be viewed through the pressure gauge 203, and the input amount of protective gas can be adjusted appropriately to ensure the normal operation of the sintering process.

[0044] like Figure 8 As shown: When the material is discharged after sintering, the worker controls the hydraulic push rod 4 to extend upward and lift the sintering part 1001 of the sintering furnace 1 upward. The sintering part 1001 rotates upward around the rotation point of the control part 1002. The sintering part 1001 is tilted with the left side higher than the right side, which makes it easier for the material remaining in the inner liner 3 to be discharged through the discharge pipe 102.

[0045] Example 2: Based on Example 1, such as Figure 9 As shown, the discharge pipe 102 is provided with three discharge channels; each discharge channel is connected to the first heating chamber 10701, the second heating chamber 10702 and the third heating chamber 10703 respectively; each discharge channel of the discharge pipe 102 is connected to the inside of the inner liner 3.

[0046] The working principle of the above embodiment is as follows: By setting three discharge channels in the discharge pipe 102, and the three discharge channels are respectively connected to the first heating chamber 10701, the second heating chamber 10702 and the third heating chamber 10703, when the material is discharged from left to right as the inner liner 3 rotates, materials of different sizes are discharged into different discharge channels for separate discharge, thereby directly screening the sintered material. At the same time, each discharge channel of the discharge pipe 102 is connected to the inside of the inner liner 3, and the protective gas can be discharged normally through the gas outlet pipe 202.

[0047] The above description is merely an embodiment of the present invention and is not intended to limit the present invention. All equivalent substitutions made within the principles of the present invention should be included within the scope of protection of the present invention. Contents not described in detail in this invention are existing technologies known to those skilled in the art.

Claims

1. A high-efficiency heating tubular industrial kiln, comprising a sintering furnace (1); an electric heater (2) is installed inside the sintering furnace (1); characterized in that, It also includes an inner liner (3); an inner liner (3) is installed inside an electric heater (2); a sintering furnace (1) is connected to an inlet and feed assembly for feeding and discharging materials and providing protective gas; a transmission assembly for driving the inner liner (3) to rotate is connected to the sintering furnace (1); a plurality of first partition plates (106) arranged in a ring array are fixed to the inner wall of the inner liner (3), the first partition plates (106) are L-shaped; a connecting block (105) is fixed to the inner liner (3); a plurality of second partition plates (107) arranged in a ring array are fixed to the connecting block (105), the second partition plates (107) are Z-shaped; a plurality of third partition plates (113) arranged in a ring array are fixed to the connecting block (105); all the first partition plates (106) are located at The corresponding second partition plate (107) is located outside; all the second partition plates (107) are located outside the corresponding third partition plate (113); the connecting block (105) is connected to a first isolation ring (108) and a second isolation ring (109), the first isolation ring (108) is located outside the second isolation ring (109); the first isolation ring (108) is located between the first partition plate (106) and the second partition plate (107), and the second isolation ring (109) is located between the second partition plate (107) and the third partition plate (113); the contact parts of the first isolation ring (108) and the second isolation ring (109) with the corresponding first partition plate (106) and the second partition plate (107) are all set as semi-circular rings; It also includes a pressure ring (110); a pressure ring (110) is fixedly connected to both the first isolation ring (108) and the second isolation ring (109); all the pressure rings (110) are rotatably connected to the connecting block (105); two extrusion parts (10501) are provided in the connecting block (105); each extrusion part (10501) is engaged with the corresponding pressure ring (110); several actuating blocks (111) are fixedly connected to both the first isolation ring (108) and the second isolation ring (109); a spring (112) is fixedly connected between the first isolation ring (108) and the second isolation ring (109) and the discharge pipe (102).

2. The high-efficiency heating tubular industrial kiln according to claim 1, characterized in that, The air intake and feeding assembly includes: a feed pipe (101); a feed pipe (101) is rotatably connected to one end of the inner liner (3); a discharge pipe (102) is rotatably connected to the other end of the inner liner (3); a first isolation ring (108) and a second isolation ring (109) are slidably connected to the discharge pipe (102); the feed pipe (101) and the discharge pipe (102) are both fixedly connected to the sintering furnace (1), and the feed pipe (101) and the discharge pipe (102) are both connected to the inner liner (3); an air intake pipe (201) is connected to the feed pipe (101); and an air outlet pipe (202) is connected to the discharge pipe (102).

3. The high-efficiency heating tubular industrial kiln according to claim 2, characterized in that, Both the feed pipe (101) and the discharge pipe (102) are screwed with sealing caps (10101).

4. A high-efficiency heating tubular industrial kiln according to claim 3, characterized in that, The sealing cap (10101) is equipped with a handle.

5. A high-efficiency heating tubular industrial kiln according to claim 2, characterized in that, It also includes a pressure gauge (203); a pressure gauge (203) for detecting the flow pressure of protective gas is fixedly connected to the outlet pipe (202).

6. A high-efficiency heating tubular industrial kiln according to claim 1, characterized in that, It also includes protrusions (114); several protrusions (114) are fixed on both the first partition plate (106) and the second partition plate (107), and the density of protrusions (114) on the first partition plate (106) is greater than the density of protrusions (114) on the second partition plate (107).

7. A high-efficiency heating tubular industrial kiln according to claim 1, characterized in that, It also includes a limiting block (115); several limiting blocks (115) are fixedly connected to the first isolation ring (108) and the second isolation ring (109) in a ring array; the limiting block (115) is slidably connected to the discharge pipe (102).

8. A high-efficiency heating tubular industrial kiln according to claim 1, characterized in that, It also includes hydraulic push rods (4); the sintering furnace (1) is composed of a sintering section (1001) and a control section (1002); the sintering section (1001) and the control section (1002) are rotatably connected; several hydraulic push rods (4) are fixedly connected to the control section (1002), and the output end of the hydraulic push rods (4) is fixedly connected to the sintering section (1001); the hydraulic push rods (4) are far away from the rotatable connection point between the sintering section (1001) and the control section (1002).

9. A high-efficiency heating tubular industrial kiln according to claim 2, characterized in that, The discharge pipe (102) is provided with three discharge channels; each discharge channel is connected to the first heating chamber (10701), the second heating chamber (10702) and the third heating chamber (10703) respectively; each discharge channel of the discharge pipe (102) is connected to the inside of the inner liner (3).

Images