Sealed cantilever type material level control device for evapo-separated machine
By designing a sealed cantilever level control device on the steaming machine, using the material floating shaft and angular displacement device combined with a frequency conversion speed control motor to control the cutting speed, the problem of unstable level control in the existing technology is solved, and the further development of the material level control is achieved. Efficient material level management and safe production.
Patent Information
- Application Number
- CN202420262406.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-02
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2034-02-02
AI Technical Summary
The existing steam off-machine level control device has poor bearing concentricity, resulting in unstable rotation of the rotating shaft, resulting in unsatisfactory level control.
The sealed cantilever level control device is adopted, and the base is directly fixed to the side wall of the displaced shell. The material floating shaft drives the pointer and the angular displacement device. The speed of the cutter is controlled by a variable frequency speed control motor to achieve real-time material level height. Control, adopt a multi-channel sealing structure to prevent gas leakage.
It improves the rotation stability of the material floating shaft and the accuracy of material level control, reduces the volatility of solvent gas, and enhances safe production conditions.
Smart Images
Figure CN222182198U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of material level control of degassing machines, in particular to a sealed cantilever material level control device for degassing machines. Background Art
[0002] The desolventizer is a common desolventizing and drying equipment in the leaching workshop of oil processing plants. It usually has 6 to 10 layers, each with a pot bottom. The meal falls from the drop hole of the upper pot bottom to the lower layer, and the drying gas flows upward through the air holes on the pot bottom. In the oil production process of the leaching oil plant, the solvent in the wet meal is steamed and dried by the desolventizer before it can become a by-product meal.
[0003] In order to achieve a good drying and desolventizing effect, the level of wet meal in the desolventizer must be kept at a certain height to ensure that there is enough steaming and drying time to remove the solvent, achieve the ideal desolventizing effect, and obtain qualified by-product meal. Due to the uneven wet meal entering the desolventizer and the intermittent feeding of each layer, it is difficult to keep the level of the meal in the desolventizer at a certain height; in order to achieve the purpose of keeping the level at a certain height, technicians, equipment manufacturers and manufacturers have designed and tested many forms of material layer level control methods: one is a mechanical material door swing control mechanism, which uses the principle of lever, uses the material peak to lift the material swing, and then opens the material door through the connecting rod to perform intermittent feeding, so that the material layer is kept at a certain height. When this mechanism opens the material door to discharge, it is very easy to cause solvent gas to volatilize into the upper layer with the material and discharge into the atmosphere, which not only increases the consumption of solvent, but also affects the safe production of the workshop. It is rarely used now; the other is a rotary valve unloader, also known as a material unloading air shut-off device, which controls the material layer height by adjusting the rotation speed.
[0004] Specifically, a material level control device can be set in the upper cavity of the bottom of the steamer, and a material discharge air shutoff device can be installed at the discharge port. The linkage of the two can realize stable control of the material level height. The commonly used material level control device is a float type, which mainly includes a float, a rotating shaft and an angular displacement device. The float is lifted by the meal material, thereby driving the rotating shaft to rotate. The angular displacement device can rotate synchronously with the rotating shaft, and the rotation angle signal is converted into an electrical signal, which is transmitted to the material discharge air shutoff device, so as to adjust the rotation speed of the material discharge air shutoff device in real time, and then control the discharge amount of the discharge port, and finally change the material level height of the meal material. However, in the existing material level control device mentioned above, the bearing seat for installing the rotating shaft needs to be fixed on the bracket plate as a whole, and the bracket plate is then welded on the outer wall of the cylinder. The bearing concentricity is poor and the overall structure is complicated, which makes the rotation of the rotating shaft unstable, resulting in unsatisfactory linkage effect between the material level control device and the material discharge air shutoff device. Utility Model Content
[0005] In order to solve the technical problem that in the existing material level control device, the bearing seat for installing the rotating shaft needs to be fixed as a whole on the bracket plate, and the bracket plate is then welded to the outer wall of the cylinder, the bearing concentricity is poor, and the overall structure is complex, which makes the rotation of the rotating shaft unstable, resulting in unsatisfactory linkage effect between the material level control device and the unloading air shut-off device, the utility model provides a sealed cantilever material level control device for a degassing machine.
[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:
[0007] A sealed cantilever material level control device for a degassing machine includes a machine base, which is cylindrical and horizontally penetrates and is fixedly connected to the side wall of the casing of the degassing machine. A material floating shaft is rotatably supported in the machine base, and the material floating shaft is coaxially arranged with the machine base. Both ends of the material floating shaft pass through the machine base, and the interior of the machine base is sealed; a material float is fixedly installed at one end of the material floating shaft located inside the degassing machine, and the material float can drive the material floating shaft to rotate; a pointer is fixedly installed at one end of the material floating shaft located outside the degassing machine, and the pointer can swing with the rotation of the material floating shaft; an angle shifter is fixedly installed at one end of the machine base located outside the degassing machine, and the extension rod on the angle shifter can swing synchronously with the pointer; the angle shifter is electrically connected to a variable frequency speed regulating motor, and the variable frequency speed regulating motor can control the speed of a material unloading air lock, and the material unloading air lock is installed at the unloading port at the bottom of the degassing machine. The machine base passes through the casing of the degassing machine and is directly fixedly connected to the side wall of the casing, which can improve the concentricity of the material floating shaft and the machine base, and no bracket plate is needed.
[0008] When the degassing machine is working, as the feed amount increases, the material level of the meal material rises. At the same time, under the stirring action of the scraper of the main shaft of the degassing machine, the meal material slowly rotates, pushing the bottom of the material float upward, and the top of the material float is fixed together with the end of the material float shaft. The lifting of the material float can drive the material float shaft to rotate a certain angle. The higher the material level of the meal material, the greater the rotation angle of the material float shaft. The end of the material float shaft away from the material float is fixedly connected to the pointer, and the pointer can rotate synchronously with the material float shaft. The extension rod of the angular displacement device can rotate synchronously with the pointer. The angular displacement device can convert the swing angle signal of the extension rod into an electrical signal, and the electrical signal is fed back to the variable frequency speed regulating motor to adjust the speed of the variable frequency speed regulating motor. The variable frequency speed regulating motor is mechanically connected to the unloading air lock. Under the speed adjustment of the variable frequency speed regulating motor, the speed of the rotating shaft of the unloading air lock is also changed, thereby controlling the unloading speed of the unloading port, and then controlling the material level height of the meal material of the degassing machine in real time. The greater the unloading speed, the faster the top layer height of the meal material drops.
[0009] As a preferred implementation of a sealed cantilever material level control device for a degassing machine, the machine base includes a connecting pipe seat, which is fixedly connected to the side wall of the casing of the degassing machine, an integrated bearing seat is coaxially installed inside the connecting pipe seat, and the integrated bearing seat includes a sleeve, both ends of the sleeve extend out of the connecting pipe seat, a front end bearing seat is coaxially installed inside the end of the sleeve located inside the degassing machine; a rear end bearing seat is coaxially installed inside the end of the sleeve located outside the degassing machine, a sleeve flange is coaxially installed on the outer peripheral surface of the end of the sleeve located outside the degassing machine, a connecting pipe flange is coaxially installed on the outer peripheral surface of the connecting pipe seat at the end of the degassing machine, a first plane sealing gasket is installed between the sleeve flange and the connecting pipe flange, the solvent gas inside the degassing machine has certain harmfulness and corrosiveness, the first plane sealing gasket can prevent the internal gas of the degassing machine from overflowing through the connecting pipe seat, the sleeve flange and the connecting pipe flange are fastened and connected by bolts, and are easy to disassemble and assemble, and convenient for maintenance.
[0010] As a preferred implementation method of a sealed cantilever material level control device for a steam degassing machine, a front end bearing is installed inside the front end bearing seat, and the front end bearing can support the material floating shaft; the outer ring of the front end bearing abuts against one end of the outer sealing retaining ring on the side facing the inside of the steam degassing machine, and the other end of the outer sealing retaining ring abuts against the sealing seat plate, the sealing seat plate and the front end bearing seat are coaxially arranged, and a skeleton oil seal and a pneumatic sealing ring are installed inside the sealing seat plate, and the skeleton oil seal and the pneumatic sealing ring are sleeved on the outer circumferential surface of the material floating shaft; one end of the sealing seat plate abuts against the side of the front end bearing seat facing the inside of the steam degassing machine, and the other end of the sealing seat plate abuts against the sealing cover plate, and the sealing cover plate is coaxially arranged with the sealing seat plate, and the front end bearing seat, the sealing seat plate and the sealing cover plate are fixed together by bolts; a second plane sealing gasket is installed between the front end bearing seat and the sealing seat plate, and a third plane sealing gasket is installed between the sealing seat plate and the sealing cover plate, and the material floating shaft passes through the sealing seat plate and the sealing cover plate. The pneumatic sealing ring can effectively prevent the internal gas of the degassing machine from entering the front bearing seat, which is the first sealing protection; the skeleton oil seal is installed close to the pneumatic sealing ring, which prevents the front bearing grease from leaking out and plays a certain role in preventing the gas from entering the front bearing seat, which is the second sealing protection. The second plane sealing gasket and the third plane sealing gasket both play a role in preventing the gas from entering the front bearing seat.
[0011] As a preferred implementation of a sealed cantilever material level control device for a degassing machine, an inner sealing ring is provided between the front bearing and the sealing seat plate, and the inner sealing ring is fixedly mounted on the outer peripheral surface of the material floating shaft, and a labyrinth-type annular sealing space is formed between the inner sealing ring and the outer sealing ring. The inner sealing ring and the outer sealing ring can further prevent gas from entering the front bearing seat, which is the third line of protection. Through the combined effect of the three lines of protection, the sealing effect of the integrated bearing seat can be effectively achieved, so that the front bearing and the rear bearing can rotate smoothly, ensuring the stable output of the final electrical signal.
[0012] As a preferred implementation of a sealed cantilever material level control device for a degassing machine, a rear end bearing is installed inside the rear end bearing seat, and one end of the rear end bearing seat facing the outside of the degassing machine is fixedly connected to the bearing cover by bolts, the rear end bearing seat and the bearing cover are coaxially arranged, and a fourth plane sealing gasket is installed between the bearing cover and the rear end bearing seat; the material floating shaft passes through the bearing cover, and a sealing ring is installed between the material floating shaft and the bearing cover. Dust outside the degassing machine is prevented from entering the integrated bearing seat.
[0013] As a preferred implementation of a sealed cantilever material level control device for a degassing machine, the front end bearing seat is welded to the sleeve, the rear end bearing seat is welded to the sleeve, and the sleeve flange is welded to the sleeve. The device has good sealing performance, is simple and reliable.
[0014] As a preferred implementation of a sealed cantilever material level control device for a degassing machine, the angle displacer is installed on the side of the sleeve flange facing the outside of the degassing machine. The angle displacer does not affect the concentricity of the pipe socket and the sleeve.
[0015] As a preferred implementation of a sealed cantilever material level control device for a degassing machine, a first magnet is installed on the extension rod of the angular displacement device, and a second magnet is installed on the pointer, and the first magnet and the second magnet are attracted to each other by opposite charges. Under the action of the opposite charges between the first magnet and the second magnet, the extension rod of the angular displacement device can rotate synchronously with the pointer to achieve contactless connection.
[0016] As a preferred implementation of a sealed cantilever material level control device for a degassing machine, the material float includes a material float block, which is fixedly mounted on the shaft end of the material float shaft located inside the degassing machine, and a shaft end retaining ring is also mounted on the shaft end of the material float shaft located inside the degassing machine; the material float block is connected to a connecting rib plate, and the connecting rib plate is connected to the material float. The shaft end retaining ring can prevent the material float block from detaching from the material float shaft.
[0017] As a preferred implementation of a sealed cantilever material level control device for a degassing machine, the material float is a hollow structure, the bottom of the material float is an arc, the top of the material float is a three-sided oblique pyramid, and one edge of the top of the material float is connected to the connecting rib plate. The material float is relatively light, and the bottom of the material float is a large arc surface, so that the contact area between the meal and the material float is large, the material float is lifted stably, and the accuracy of the material level height data is improved. The top of the material float is a three-sided oblique pyramid to prevent the meal from accumulating on the top of the material float.
[0018] The beneficial effects of the utility model are:
[0019] When the degassing machine is working, as the feed amount increases, the material level of the meal material rises. At the same time, under the stirring action of the scraper of the main shaft of the degassing machine, the meal material slowly rotates, pushing the bottom of the material float upward, and the top of the material float is fixed together with the end of the material float shaft. The lifting of the material float can drive the material float shaft to rotate a certain angle. The higher the material level of the meal material, the greater the rotation angle of the material float shaft. The end of the material float shaft away from the material float is fixedly connected to the pointer, and the pointer can rotate synchronously with the material float shaft. The extension rod of the angular displacement device can rotate synchronously with the pointer. The angular displacement device can convert the swing angle signal of the extension rod into an electrical signal, and the electrical signal is fed back to the variable frequency speed regulating motor to adjust the speed of the variable frequency speed regulating motor. The variable frequency speed regulating motor is mechanically connected to the unloading air lock. Under the speed adjustment of the variable frequency speed regulating motor, the speed of the rotating shaft of the unloading air lock is also changed, thereby controlling the unloading speed of the unloading port, and then controlling the material level height of the meal material of the degassing machine in real time. The greater the unloading speed, the faster the top layer height of the meal material drops. The machine base passes through the casing of the degassing machine and is directly fixedly connected to the side wall of the casing, which can improve the concentricity of the material floating shaft and the machine base, eliminates the need for a bracket plate, and improves the rotation stability of the material floating shaft. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] In order to more clearly illustrate the technical solution of the utility model, the drawings required for use in the description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0021] Figure 1 It is a schematic cross-sectional view of a sealed cantilever material level control device for a degassing machine in a specific embodiment of the utility model;
[0022] Figure 2 for Figure 1 A magnified schematic diagram of the structure at center A;
[0023] Figure 3 It is a schematic diagram of the side view structure of the material floating shaft in a specific implementation mode of the utility model;
[0024] Figure 4 This is a structural schematic diagram of a material float in a specific implementation manner of the utility model;
[0025] Figure 5 This is a structural schematic diagram of an integrated bearing seat in a specific implementation manner of the utility model;
[0026] Figure 6 It is a schematic diagram of the overall structure of a specific implementation method of the utility model.
[0027] List of parts and reference numerals:
[0028] 1. Pipe connection seat; 11. Pipe connection flange; 2. Casing; 3. Integrated bearing seat; 31. Sleeve; 32. Front bearing seat; 33. Rear bearing seat; 34. Sleeve flange; 35. Front bearing; 36. Outer sealing retainer; 37. Sealing seat plate; 38. Skeleton oil seal; 39. Pneumatic sealing ring; 310. Sealing cover plate; 311. Second plane sealing gasket; 312. Inner sealing retainer; 313. Rear bearing; 314. Bearing cover; 4. First plane sealing gasket; 5. Material floating shaft; 6. Material floating block; 7. Connecting rib plate; 8. Material float; 9. Shaft end retainer; 010. Scraper; 011. Angular displacement device; 012. Extension rod; 013. Pointer; 014. Frequency converter; 015. Unloading air shut-off device; 016. Unloading port. DETAILED DESCRIPTION
[0029] In order to make the purpose, features and advantages of the utility model more obvious and easy to understand, the technical scheme of the utility model will be clearly and completely described below in combination with the drawings in the specific embodiment. Obviously, the embodiments described below are only part of the embodiments of the utility model, not all of them. Based on the embodiments in this patent, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this patent.
[0030] Reference Figure 1-6 This embodiment provides a sealed cantilever material level control device for a degassing machine, which includes a machine base, which is cylindrical and includes a pipe seat 1, which is fixedly connected to the side wall of a casing 2 of the degassing machine, and an integrated bearing seat 3 is coaxially installed inside the pipe seat 1. The integrated bearing seat 3 includes a sleeve 31, and both ends of the sleeve 31 extend out of the pipe seat 1. A front end bearing seat 32 is coaxially installed inside one end of the sleeve 31 located inside the degassing machine, and the front end bearing seat 32 is welded to the sleeve 31; the sleeve 31 is located outside the degassing machine A rear end bearing seat 33 is coaxially installed inside one end of the evaporator, and the rear end bearing seat 33 is welded to the sleeve 31. A sleeve flange 34 is coaxially installed on the outer circumference of the end of the sleeve 31 located outside the evaporator, and the sleeve flange 34 is welded to the sleeve 31. A pipe flange 11 is coaxially installed on the outer circumference of the end of the pipe connection seat 1 located outside the evaporator, and a first plane sealing gasket 4 is installed between the sleeve flange 34 and the pipe flange 11. The sleeve flange 34 and the pipe flange 11 are fastened by bolts, which are easy to disassemble and maintain. The first plane sealing gasket 4 can prevent the internal gas of the evaporator from overflowing through the pipe connection seat 1.
[0031] A front end bearing 35 is installed inside the front end bearing seat 32, and the front end bearing 35 can support the material floating shaft 5; the outer ring of the front end bearing 35 is in contact with one end of the outer sealing retainer 36 on the side facing the inside of the degassing machine, and the other end of the outer sealing retainer 36 is in contact with the sealing seat plate 37, and the sealing seat plate 37 is coaxially arranged with the front end bearing seat 32. A skeleton oil seal 38 and a pneumatic sealing ring 39 are installed inside the sealing seat plate 37, and the skeleton oil seal 38 and the pneumatic sealing ring 39 are sleeved on the outer peripheral surface of the material floating shaft 5; one end of the sealing seat plate 37 is in contact with the outer end of the outer sealing retainer 36, and the outer end of the outer sealing retainer 36 is in contact with the sealing seat plate 37. The front end bearing seat 32 is abutted against the side facing the inside of the degassing machine, and the other end of the sealing seat plate 37 is abutted against the sealing cover plate 310. The sealing cover plate 310 and the sealing seat plate 37 are coaxially arranged. The front end bearing seat 32, the sealing seat plate 37 and the sealing cover plate 310 are fixed together by bolts; a second plane sealing gasket 311 is installed between the front end bearing seat 32 and the sealing seat plate 37, and a third plane sealing gasket is installed between the sealing seat plate 37 and the sealing cover plate 310. The material floating shaft 5 passes through the sealing seat plate 37 and the sealing cover plate 310. An inner sealing retainer 312 is provided between the front end bearing 35 and the sealing seat plate 37. The inner sealing retainer 312 is fixedly installed on the outer peripheral surface of the material floating shaft 5, and a labyrinth-type annular sealing space is formed between the inner sealing retainer 312 and the outer sealing retainer 36. The pneumatic sealing ring 39 can effectively prevent the internal gas of the steam stripper from entering the front bearing seat 32, which is the first sealing protection; the skeleton oil seal 38 is installed close to the pneumatic sealing ring 39, which prevents the grease of the front bearing 35 from leaking out and plays a certain role in preventing the gas from entering the front bearing seat 32, which is the second sealing protection; the inner sealing ring 312 and the outer sealing ring 36 cooperate with each other to form a labyrinth-like annular sealing space, further preventing the gas from entering the front bearing seat 32, which is the third protection. Through the joint action of the three protections, the sealing effect of the integrated bearing seat 3 can be effectively achieved, so that the front bearing 35 and the rear bearing 313 can rotate smoothly, ensuring the stable output of the final electrical signal. The second plane sealing gasket 311 and the third plane sealing gasket both play a role in preventing gas from entering the front bearing seat 32.
[0032] The rear bearing 313 is installed inside the rear bearing seat 33, and the end of the rear bearing seat 33 facing the outside of the steam-degassing machine is fixedly connected with the bearing cover 314 by bolts. The rear bearing seat 33 and the bearing cover 314 are coaxially arranged, and a fourth plane sealing gasket is installed between the bearing cover 314 and the rear bearing seat 33; the material floating shaft 5 passes through the bearing cover 314, and a sealing ring is installed between the material floating shaft 5 and the bearing cover 314. Prevent dust outside the steam-degassing machine from entering the integrated bearing seat 3.
[0033] The pipe seat 1 horizontally penetrates and is fixedly connected to the side wall of the casing 2 of the degassing machine. The material floating shaft 5 is rotatably supported in the sleeve 31, so that the concentricity of the material floating shaft 5 and the front bearing 35 and the rear bearing 313 is high. The material floating shaft 5 is coaxially arranged with the machine base, and both ends of the material floating shaft 5 pass through the machine base, and the inside of the machine base is sealed; the material floating is fixedly installed with a material float at one end of the material floating shaft 5 located inside the degassing machine, and the material float includes a material floating block 6, and the material floating block 6 is fixedly installed on the shaft end of the end of the material floating shaft 5 located inside the degassing machine. The shaft end of the material floating shaft 5 located inside the degassing machine is also installed with a shaft end retaining ring 9; the material floating block 6 is connected to the connecting rib plate 7, and the connecting rib plate 7 is connected to the material float 8. The material float 8 is a hollow structure with light weight. The bottom of the material float 8 is arc-shaped, and the top of the material float 8 is a three-sided oblique pyramid. One edge of the top of the material float 8 is connected to the connecting rib plate 7 to prevent the meal from adhering. After the material float is installed, the whole is in a vertical downward state. The meal in the degassing machine slowly rotates under the stirring action of the scraper 010 of the main shaft of the degassing machine. When the meal level in the degassing machine rises to the height of the material float 8, the meal contacts the material float 8, and the meal can lift the bottom of the material float 8 and raise the material float 8, that is, the material float 8 is always on the top of the meal. At the same time, since the top of the material float 8 is connected to the material float shaft 5 through the connecting rib plate 7 and the material float block 6 in turn, the material float shaft 5 can rotate driven by the material float 8. The higher the meal level, the greater the rotation angle of the material float shaft 5.
[0034] A pointer 013 is fixedly installed at one end of the material floating shaft 5 located outside the desiccant machine, and the pointer 013 can swing with the rotation of the material floating shaft 5; an angle displacer 011 is fixedly installed at one end of the machine base located outside the desiccant machine, and the angle displacer 011 is installed on the side of the sleeve flange 34 facing the outside of the desiccant machine. A first magnet is installed on the extension rod 012 of the angle displacer 011, and a second magnet is installed on the pointer 013. The first magnet and the second magnet are attracted by opposite charges, so that the extension rod 012 on the angle displacer 011 can swing synchronously with the pointer 013. The angle displacer 011 is electrically connected to the variable frequency speed regulating motor, and the variable frequency speed regulating motor can control the speed of the material unloading air lock 015, and the material unloading air lock 015 is installed at the unloading port 016 at the bottom of the desiccant machine.
[0035] The working principle of the utility model is:
[0036] When the degassing machine is working, the meal enters the degassing machine through the feeding auger. As the feed amount increases, the material level of the meal rises. At the same time, under the stirring action of the scraper 010 of the degassing machine main shaft, the meal rotates slowly, pushing the material float 8 at the bottom of the material float to rise upward. The bottom of the material float 8 is a large arc surface, so that the contact area between the meal and the material float 8 is large, the material float 8 is lifted stably, and the accuracy of the material level height data is improved. The material float is fixed together with the end of the material float shaft 5. The lifting of the material float 8 can drive the material float shaft 5 to rotate a certain angle. The higher the meal level, the greater the rotation angle of the material float shaft 5. The end of the material float shaft 5 away from the material float is fixedly connected to the pointer 013, and the pointer 013 can rotate synchronously with the material float shaft 5. Under the action of the opposite attraction between the first magnet and the second magnet, the extension rod 012 of the angular displacement device 011 can rotate synchronously with the pointer 013 to achieve contactless connection. The angular displacement device 011 can convert the swing angle signal of the extension rod 012 into an electrical signal, and the electrical signal is fed back to the variable frequency speed regulation motor to adjust the speed of the variable frequency speed regulation motor. The variable frequency speed regulation motor is mechanically connected to the material discharge air shutoff device 015. Under the speed adjustment of the variable frequency speed regulation motor, the speed of the rotating shaft of the material discharge air shutoff device 015 is also changed, thereby controlling the material discharge speed of the discharge port 016, and then controlling the material level height of the meal of the degassing machine in real time. The greater the material discharge speed, the faster the top layer height of the meal drops.
[0037] Those skilled in the art should understand that the material discharge air shut-off device 015 is a commonly used device in the field and is used to control the material discharge amount.
[0038] This embodiment also solves the problem that the rotating shaft (equivalent to the material floating shaft 5 in this embodiment) in the existing material level control device passes through the packing seal seat welded on the cylinder (equivalent to the machine base in this embodiment), and the packing is used for sealing. After long-term operation, the packing is loose and easy to leak. This embodiment also solves the problem that the flat material floating plate (equivalent to the material floating 8 in this embodiment) installed at the shaft head end of the rotating shaft has a small contact area with the meal material, the lifting is unstable, and the material level data is inaccurate.
[0039] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A sealed cantilever material level control device for a degassing machine, comprising a machine base, the machine base being cylindrical, horizontally penetrating and fixedly connected to a side wall of a casing (2) of the degassing machine, a material floating shaft (5) being rotatably supported in the machine base, the material floating shaft (5) being coaxially arranged with the machine base, and characterized in that: Both ends of the material floating shaft (5) pass through the machine base, and the interior of the machine base is sealed; a material float is fixedly installed at one end of the material floating shaft (5) located inside the degassing machine, and the material float can drive the material floating shaft (5) to rotate; a pointer (013) is fixedly installed at one end of the material floating shaft (5) located outside the degassing machine, and the pointer (013) can swing with the rotation of the material floating shaft (5); an angle displacer (011) is fixedly installed at one end of the machine base located outside the degassing machine, and a protruding rod (012) on the angle displacer (011) can swing synchronously with the pointer (013); the angle displacer (011) is electrically connected to a variable frequency speed regulating motor, and the variable frequency speed regulating motor can control the rotation speed of a material discharge air lock (015), and the material discharge air lock (015) is installed at a material discharge port (016) at the bottom of the degassing machine.
2. A sealed cantilever material level control device for a degassing machine according to claim 1, characterized in that: The machine base comprises a connecting pipe seat (1), the connecting pipe seat (1) is fixedly connected to the side wall of the casing (2) of the degassing machine, an integrated bearing seat (3) is coaxially mounted inside the connecting pipe seat (1), the integrated bearing seat (3) comprises a sleeve (31), both ends of the sleeve (31) extend out of the connecting pipe seat (1), a front end bearing seat (32) is coaxially mounted inside the end of the sleeve (31) located inside the degassing machine; a rear end bearing seat (33) is coaxially mounted inside the end of the sleeve (31) located outside the degassing machine, a sleeve flange (34) is coaxially mounted on the outer peripheral surface of the end of the sleeve (31) located outside the degassing machine, a connecting pipe flange (11) is coaxially mounted on the outer peripheral surface of the connecting pipe seat (1) located outside the degassing machine, a first plane sealing gasket (4) is mounted between the sleeve flange (34) and the connecting pipe flange (11), and the sleeve flange (34) and the connecting pipe flange (11) are fastened and connected by bolts.
3. A sealed cantilever material level control device for a degassing machine according to claim 2, characterized in that: A front end bearing (35) is installed inside the front end bearing seat (32), and the front end bearing (35) can support the material floating shaft (5); the outer ring of the front end bearing (35) is in contact with one end of an outer sealing retaining ring (36) on the side facing the inside of the steam degassing machine, and the other end of the outer sealing retaining ring (36) is in contact with a sealing seat plate (37), and the sealing seat plate (37) is coaxially arranged with the front end bearing seat (32), and a skeleton oil seal (38) and a pneumatic sealing ring (39) are installed inside the sealing seat plate (37), and the skeleton oil seal (38) and the pneumatic sealing ring (39) are sleeved on the outer peripheral surface of the material floating shaft (5); one end of the sealing seat plate (37) The front end bearing seat (32) is in contact with the side of the front end bearing seat (32) facing the interior of the degassing machine. The other end of the sealing seat plate (37) is in contact with the sealing cover plate (310). The sealing cover plate (310) and the sealing seat plate (37) are coaxially arranged. The front end bearing seat (32), the sealing seat plate (37) and the sealing cover plate (310) are fixed together by bolts. A second flat sealing gasket (311) is installed between the front end bearing seat (32) and the sealing seat plate (37). A third flat sealing gasket is installed between the sealing seat plate (37) and the sealing cover plate (310). The material floating shaft (5) passes through the sealing seat plate (37) and the sealing cover plate (310).
4. A sealed cantilever material level control device for a degassing machine according to claim 3, characterized in that: An inner sealing retaining ring (312) is provided between the front end bearing (35) and the sealing seat plate (37). The inner sealing retaining ring (312) is fixedly mounted on the outer peripheral surface of the material floating shaft (5). A labyrinth-type annular sealing space is formed between the inner sealing retaining ring (312) and the outer sealing retaining ring (36).
5. A sealed cantilever material level control device for a degassing machine according to claim 2, characterized in that: A rear end bearing (313) is installed inside the rear end bearing seat (33); one end of the rear end bearing seat (33) facing the outside of the steam degassing machine is fixedly connected to the bearing cover (314) by bolts; the rear end bearing seat (33) and the bearing cover (314) are coaxially arranged; a fourth plane sealing gasket is installed between the bearing cover (314) and the rear end bearing seat (33); the material floating shaft (5) passes through the bearing cover (314); and a sealing ring is installed between the material floating shaft (5) and the bearing cover (314).
6. A sealed cantilever material level control device for a degassing machine according to claim 2, characterized in that: The front end bearing seat (32) is welded to the sleeve (31), the rear end bearing seat (33) is welded to the sleeve (31), and the sleeve flange (34) is welded to the sleeve (31).
7. A sealed cantilever material level control device for a degassing machine according to claim 2, characterized in that: The angle displacer (011) is mounted on the side of the casing flange (34) facing the outside of the degassing machine.
8. A sealed cantilever material level control device for a degassing machine according to any one of claims 1 to 7, characterized in that: A first magnet is mounted on the extension rod (012) of the angular displacement device (011), and a second magnet is mounted on the pointer (013); the first magnet and the second magnet attract each other due to opposite polarities.
9. A sealed cantilever material level control device for a degassing machine according to any one of claims 1 to 7, characterized in that: The material float comprises a material float block (6), which is fixedly mounted on the shaft end of a material float shaft (5) located inside the degassing machine. The shaft end of the material float shaft (5) located inside the degassing machine is also mounted with a shaft end retaining ring (9). The material float block (6) is connected to a connecting rib plate (7), and the connecting rib plate (7) is connected to a material float (8).
10. A sealed cantilever material level control device for a degassing machine according to claim 9, characterized in that: The material float (8) is a hollow structure, the bottom of the material float (8) is arc-shaped, the top of the material float (8) is a three-sided oblique pyramid, and an edge of the top of the material float (8) is connected to the connecting rib plate (7).