Rotary kiln tail blanking pressure monitoring device

Abstract

The utility model relates to the technical field of rotary kilns, and discloses a rotary kiln tail blanking pressure monitoring device. The rotary kiln tail discharging pressure monitoring device comprises a rotary kiln body, an equipment pressure monitoring mechanism is installed on the middle rear portion of the rotary kiln body, an equipment abrasion replacement mechanism is connected to the middle of the rotary kiln body, and the equipment pressure monitoring mechanism comprises a monitor installed on the middle rear portion of the rotary kiln body. According to the rotary kiln, the connecting ring is connected to the middle of the rotary kiln body, the connecting ring is connected with the rotary kiln body through the side connecting rings on the two sides, then equipment is fixedly connected through the mounting rings on the two sides, the fixing ring is connected to the outer portion of the connecting ring in a sleeved mode, the fixing ring supports the rotary kiln body, and meanwhile the rotary kiln body can rotate conveniently; and according to the arrangement that the connecting ring can be detached through the mounting ring, the abraded connecting ring can be replaced conveniently, and the equipment is convenient to detach and replace in the later period.

Description

Technical Field

[0001] The utility model relates to the technical field of rotary kilns, and specifically relates to a device for monitoring the feeding pressure at the tail of a rotary kiln. Background Art

[0002] A rotary kiln is an important industrial equipment. By calcining materials at high temperatures, chemical reactions and physical changes occur to achieve the effects of sintering and solidification. This treatment can improve the density, mechanical strength, and chemical stability of the materials. At the same time, in the metallurgical field, rotary kilns are used for ore refining, such as the smelting processes of metals like aluminum, iron, and nickel. The chemical reactions at high temperatures can extract and separate the useful metals in the ore to form high-purity metal products. For this reason, a device for monitoring the feeding pressure at the tail of a rotary kiln is proposed.

[0003] The existing Chinese utility model patent with the reference publication number: CN220490632U discloses a rotary kiln flue gas on-line monitor, belonging to the technical field of rotary kiln flue gas. In this technical solution, through the operation of the fan, the flue gas near the box body enters the interior of the box body from the inlet, and the flue gas is monitored by a dust sensor and a smoke sensor. With the rising of the flue gas and the air volume at the tail of the fan, the flue gas comes to the high-efficiency filter element for dust filtration, and then comes to the activated carbon filter element for filtering of internal waste gas and harmful gases, and finally is discharged from the outlet of the box body. By filtering the monitored flue gas, the dust inside the box body is reduced and the cumbersome cleaning required is alleviated. By replacing and cleaning the high-efficiency filter element and the activated carbon filter element, the monitoring efficiency is improved, and the cumbersome internal cleaning is reduced. The operation can be directly reduced by cleaning and replacing the high-efficiency filter element and the activated carbon filter element, and the service life of the monitor is prolonged.

[0004] Based on the retrieval of the above patent and the combination with the equipment in the prior art, it is found that during the feeding process of the rotary kiln, due to the change in the feeding amount of the material, multiple key parameters inside the kiln become unstable, resulting in poor stability and quality of the material processing. In addition, when the rotary kiln is in use, it needs to rotate continuously, and the equipment and the kiln body rub and roll continuously, which will cause damage to the equipment. The existence of these problems affects the use of the device. Summary of the Utility Model

[0005] (1) Technical Problems to be Solved

[0006] In view of the deficiencies of the prior art, the utility model provides a device for monitoring the feeding pressure at the tail of a rotary kiln, which has the advantages of monitoring the feeding pressure and preventing equipment rotation wear, and solves the above technical problems.

[0007] (2) Technical Solutions

[0008] To achieve the above object, the present utility model provides the following technical solutions: A pressure monitoring device for the tail-end feeding of a rotary kiln, including a rotary kiln body, an equipment pressure monitoring mechanism is installed in the middle and rear of the rotary kiln body, an equipment wear and replacement mechanism is connected in the middle of the rotary kiln body, the equipment pressure monitoring mechanism includes: a monitor installed in the middle and rear of the rotary kiln body, a fixing device is installed below the monitor, and a detection rod is connected below the fixing device, and a pressure relief valve for pressure reduction is arranged behind the monitor, a fixing box is arranged below the pressure relief valve, and a control device is arranged below the fixing box;

[0009] The equipment wear and replacement mechanism includes: a connecting ring connected to the middle of the rotary kiln body, side connecting rings are connected to both sides of the connecting ring, and an installation ring for fixedly connecting the equipment is installed on one side of the side connecting ring.

[0010] As a preferred technical solution of the present utility model, a fixing ring is sleeved outside the rotary kiln body, a smoke chamber is connected to the rear of the rotary kiln body, and a feeding cylinder is connected above the smoke chamber; The feeding cylinder discharges the feedstock.

[0011] As a preferred technical solution of the present utility model, a feed inlet is opened above the smoke chamber, a side door is arranged on one side of the smoke chamber, and a connection port is opened in front of the smoke chamber, and an equipment ring is arranged outside the connection port; The connection port enables the equipment to be interconnected.

[0012] As a preferred technical solution of the present utility model, both the control device and the detection rod are located inside the rotary kiln body, and the control device is connected through the fixing box and the pressure relief valve, and the detection rod passes through the inside of the fixing device and is interconnected with the monitor; The monitor monitors the pressure inside the rotary kiln body.

[0013] As a preferred technical solution of the present utility model, the connecting ring is connected to the rotary kiln body through the side connecting ring, a fixing ring is sleeved outside the connecting ring, and the installation rings are located on both sides of the fixing ring; The installation rings fixedly connect the equipment.

[0014] As a preferred technical solution of the present utility model, the smoke chamber is interconnected with the feeding cylinder through the feed inlet, the rotary kiln body is connected in front of the connection port, and the rotary kiln body is fixedly connected to the smoke chamber through the equipment ring; The feed inlet feeds the feedstock into the equipment.

[0015] As a preferred technical solution of the present utility model, the inner diameters of the fixing rings are different, and the rotary kiln body is a cylindrical structure; The fixing ring supports the rotary kiln body.

[0016] Compared with the prior art, the present utility model provides a pressure monitoring device for the tail-end feeding of a rotary kiln, which has the following beneficial effects:

[0017] 1. In the present utility model, a monitor is provided at the middle and rear of the rotary kiln body. The monitor is connected to a detection rod inside the rotary kiln body through a fixing device. The arrangement of interconnected equipment facilitates the monitor to detect the pressure inside the rotary kiln body. Meanwhile, a pressure relief valve is provided behind the monitor. The pressure relief valve is connected to a control device through a fixing box. The control device monitors the pressure. When the pressure inside the rotary kiln body is relatively high, the pressure relief valve can automatically leak pressure, keeping the pressure inside the rotary kiln body stable, facilitating the smooth feeding of the material, and improving the safety of the equipment operation.

[0018] 2. In the present utility model, a connecting ring is connected to the middle of the rotary kiln body. The connecting ring is connected to the rotary kiln body through side connecting rings on both sides. Then, the equipment is fixedly connected by installation rings on both sides. A fixing ring is sleeved outside the connecting ring to support the rotary kiln body and facilitate the rotation of the rotary kiln body. According to the arrangement that the connecting ring can be disassembled through the installation ring, it is convenient to replace the worn connecting ring, making the equipment easy to disassemble and replace in the later stage. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0020] Figure 2 is a schematic diagram of the monitor assembly structure of the present utility model;

[0021] Figure 3 is a schematic diagram of the rotary kiln body assembly structure of the present utility model;

[0022] Figure 4 is a schematic diagram of the smoke chamber assembly structure of the present utility model;

[0023] Wherein: 1. Rotary kiln body; 11. Connecting ring; 12. Side connecting ring; 13. Installation ring; 2. Fixing ring; 3. Monitor; 31. Fixing device; 32. Detection rod; 33. Pressure relief valve; 34. Fixing box; 35. Control device; 4. Smoke chamber; 41. Feeding port; 42. Side door; 43. Connecting port; 44. Equipment ring; 5. Feeding chute. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] The following further describes in detail the embodiments of the present utility model in conjunction with the drawings and embodiments. The following embodiments are used to illustrate the present utility model, but cannot be used to limit the scope of the present utility model.

[0025] In the description of the present utility model, unless otherwise specified, the meaning of "a plurality of" is two or more; the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation to the present utility model. In addition, terms such as "first", "second", "third", etc. are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0026] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "connected" and "connected to" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0027] Please refer to Figure 1 — Figure 4 , in this embodiment, a pressure monitoring device for the discharge at the tail of a rotary kiln includes a rotary kiln body 1. An equipment pressure monitoring mechanism is installed in the middle and rear of the rotary kiln body 1. An equipment wear and replacement mechanism is connected in the middle of the rotary kiln body 1. The equipment wear and replacement mechanism includes: a connection ring 11 connected to the middle of the rotary kiln body 1. Side connection rings 12 are connected to both sides of the connection ring 11, and an installation ring 13 is installed on one side of the side connection ring 12. The connection ring 11 forms a connection relationship with the rotary kiln body 1 through the side connection rings 12. A fixing ring 2 is sleeved outside the connection ring 11, and the installation rings 13 are located on both sides of the fixing ring 2.

[0028] Specifically, a connection ring 11 is connected in the middle of the rotary kiln body 1. Side connection rings 12 are arranged on both sides of the connection ring 11. The side connection rings 12 are used to connect the connection ring 11 and the rotary kiln body 1. Then, the installation rings 13 are used to fix the entire kiln body. A fixing ring 2 is sleeved outside the connection ring 11. The fixing ring 2 supports the rotary kiln body 1 and facilitates the rotation of the equipment. As the rotation time prolongs, wear will occur inside the fixing ring 2 and the connection ring 11. The installation rings 13 are used to disassemble and replace the equipment, making the equipment easy to repair.

[0029] A fixing ring 2 is sleeved outside the rotary kiln body 1. The inner diameter of the fixing ring 2 is of different sizes, and the rotary kiln body 1 is of a cylindrical structure.

[0030] The device pressure monitoring mechanism includes: a monitor 3 installed in the middle and rear of the rotary kiln body 1, a fixing device 31 installed below the monitor 3, a detection rod 32 connected below the fixing device 31, and a pressure relief valve 33 arranged behind the monitor 3. A fixing box 34 is arranged below the pressure relief valve 33, and a control device 35 is arranged below the fixing box 34; both the control device 35 and the detection rod 32 are located inside the rotary kiln body 1, and the control device 35 is connected through the fixing box 34 and the pressure relief valve 33, and the detection rod 32 is inserted inside the fixing device 31 and interconnected with the monitor 3.

[0031] Specifically, a monitor 3 is arranged in the middle and rear of the rotary kiln body 1. The monitor 3 is connected through the fixing device 31 and the detection rod 32, and the detection rod 32 and the monitor 3 are interconnected, facilitating the monitor 3 to monitor the internal pressure of the rotary kiln body 1. At the same time, a pressure relief valve 33 is arranged behind the monitor 3. The pressure relief valve 33 is connected through the fixing box 34 and the control device 35. The control device 35 automatically relieves the pressure of the rotary kiln body 1 with too high pressure, stabilizing the internal pressure of the rotary kiln body 1 and facilitating the feeding of the material.

[0032] A smoke chamber 4 is connected behind the rotary kiln body 1. A feed inlet 41 is opened above the smoke chamber 4, a side door 42 is arranged on one side of the smoke chamber 4, and a connection port 43 is opened in front of the smoke chamber 4. A device ring 44 is arranged outside the connection port 43; and a feeding tube 5 is connected above the smoke chamber 4; the smoke chamber 4 is interconnected through the feed inlet 41 and the feeding tube 5, and the rotary kiln body 1 is connected in front of the connection port 43, and the rotary kiln body 1 is fixedly connected to the smoke chamber 4 through the device ring 44.

[0033] Specifically, a smoke chamber 4 is connected behind the rotary kiln body 1. The feeding tube 5 is interconnected above the smoke chamber 4. The feeding tube 5 is used to install the material, and a connection port 43 is arranged in front of the smoke chamber 4. The connection port 43 is used to interconnect the smoke chamber 4 and the rotary kiln body 1, facilitating the material to enter the interior of the device.

[0034] During use, a smoke chamber 4 is connected to the rear of the rotary kiln body 1, and a blanking cylinder 5 is interconnected above the smoke chamber 4. The material is fed into the interior of the rotary kiln body 1 from the blanking cylinder 5 and the smoke chamber 4. When the material enters the interior of the rotary kiln body 1, due to the instability of feeding, various parameters in the production process of the rotary kiln body 1 will be changed. Among them, a monitor 3 is provided in the middle and rear of the rotary kiln body 1. The monitor 3 is interconnected with a detection rod 32 inside the rotary kiln body 1 through a fixing device 31, facilitating the monitor 3 to monitor the internal pressure of the rotary kiln body 1. And a pressure relief valve 33 is provided behind the monitor 3. The pressure relief valve 33 is connected to a control device 35 through a fixing box 34. The control device 35 automatically relieves the pressure of the rotary kiln body 1 with excessive pressure, enabling the entire rotary kiln body 1 to operate smoothly. When the rotary kiln body 1 rotates during operation, a fixing ring 2 is sleeved outside the rotary kiln body 1. The fixing ring 2 supports the equipment and facilitates the rotation of the equipment. As time goes by, wear will occur inside the fixing ring 2. A connecting ring 11 is provided inside the fixing ring 2. The connecting ring 11 is connected to the rotary kiln body 1 by means of a side connecting ring 12 and is fixed by means of a mounting ring 13. When the equipment needs to be replaced regularly or due to wear, the mounting ring 13 is disassembled, separating the connecting ring 11 from the rotary kiln body 1, so as to reinstall the rotary kiln body 1 and make it operate normally.

[0035] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pressure monitoring device for the tail-end feeding of a rotary kiln, comprising a rotary kiln body (1), wherein an equipment pressure monitoring mechanism is installed at the middle and rear of the rotary kiln body (1), and an equipment wear and replacement mechanism is connected in the middle of the rotary kiln body (1), characterized in that, The device pressure monitoring mechanism includes: a monitor (3) installed in the middle and rear of the rotary kiln body (1), a fixing device (31) is installed below the monitor (3), a detection rod (32) is connected below the fixing device (31), and a pressure relief valve (33) is arranged behind the monitor (3), a fixing box (34) is arranged below the pressure relief valve (33), and a control device (35) is arranged below the fixing box (34); The device wear and replacement mechanism includes: a connecting ring (11) connected to the middle of the rotary kiln body (1), side connecting rings (12) are connected to both sides of the connecting ring (11), and a mounting ring (13) is installed on one side of the side connecting ring (12).

2. The material discharging pressure monitoring device at the tail of the rotary kiln according to claim 1, characterized in that, A fixing ring (2) is sleeved outside the rotary kiln body (1), a smoke chamber (4) is connected to the rear of the rotary kiln body (1), and a feeding cylinder (5) is connected above the smoke chamber (4).

3. The material discharging pressure monitoring device at the tail of a rotary kiln according to claim 2, characterized in that A feeding port (41) is opened above the smoke chamber (4), a side door (42) is arranged on one side of the smoke chamber (4), and a connecting port (43) is opened in front of the smoke chamber (4), and a device ring (44) is arranged outside the connecting port (43).

4. A rotary kiln tail discharging pressure monitoring device according to claim 1, characterized in that, Both the control device (35) and the detection rod (32) are located inside the rotary kiln body (1), and the control device (35) is connected through the fixing box (34) and the pressure relief valve (33), and the detection rod (32) penetrates through the inside of the fixing device (31) and is interconnected with the monitor (3).

5. The material discharging pressure monitoring device at the tail of a rotary kiln according to claim 1, characterized in that, The connecting ring (11) is connected to the rotary kiln body (1) through the side connecting ring (12), a fixing ring (2) is sleeved outside the connecting ring (11), and the mounting ring (13) is located on both sides of the fixing ring (2).

6. The material discharging pressure monitoring device at the tail of a rotary kiln according to claim 3, characterized in that The smoke chamber (4) is interconnected with the feeding cylinder (5) through the feeding port (41), the rotary kiln body (1) is connected in front of the connecting port (43), and the rotary kiln body (1) is fixedly connected to the smoke chamber (4) through the device ring (44).

7. The material discharging pressure monitoring device at the tail of a rotary kiln according to claim 2, wherein The inner diameter of the fixing ring (2) is of different sizes, and the rotary kiln body (1) is of a cylindrical structure.

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